Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1988-1997 Sam Leffler |
| 3 | * Copyright (c) 1991-1997 Silicon Graphics, Inc. |
| 4 | * |
| 5 | * Permission to use, copy, modify, distribute, and sell this software and |
| 6 | * its documentation for any purpose is hereby granted without fee, provided |
| 7 | * that (i) the above copyright notices and this permission notice appear in |
| 8 | * all copies of the software and related documentation, and (ii) the names of |
| 9 | * Sam Leffler and Silicon Graphics may not be used in any advertising or |
| 10 | * publicity relating to the software without the specific, prior written |
| 11 | * permission of Sam Leffler and Silicon Graphics. |
| 12 | * |
| 13 | * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, |
| 14 | * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY |
| 15 | * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. |
| 16 | * |
| 17 | * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR |
| 18 | * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, |
| 19 | * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 20 | * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF |
| 21 | * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| 22 | * OF THIS SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | /* |
| 26 | * TIFF Library. |
| 27 | * |
| 28 | * Directory Read Support Routines. |
| 29 | */ |
| 30 | |
| 31 | /* Suggested pending improvements: |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 32 | * - add a field 'field_info' to the TIFFDirEntry structure, and set that with |
| 33 | * the pointer to the appropriate TIFFField structure early on in |
| 34 | * TIFFReadDirectory, so as to eliminate current possibly repetitive lookup. |
| 35 | */ |
| 36 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 37 | #include "tiffconf.h" |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 38 | #include "tiffiop.h" |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 39 | #include <float.h> |
| 40 | #include <limits.h> |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 41 | #include <stdlib.h> |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 42 | #include <string.h> |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 43 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 44 | #define FAILED_FII ((uint32_t)-1) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 45 | |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 46 | #ifdef HAVE_IEEEFP |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 47 | #define TIFFCvtIEEEFloatToNative(tif, n, fp) |
| 48 | #define TIFFCvtIEEEDoubleToNative(tif, n, dp) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 49 | #else |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 50 | extern void TIFFCvtIEEEFloatToNative(TIFF *, uint32_t, float *); |
| 51 | extern void TIFFCvtIEEEDoubleToNative(TIFF *, uint32_t, double *); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 52 | #endif |
| 53 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 54 | enum TIFFReadDirEntryErr |
| 55 | { |
| 56 | TIFFReadDirEntryErrOk = 0, |
| 57 | TIFFReadDirEntryErrCount = 1, |
| 58 | TIFFReadDirEntryErrType = 2, |
| 59 | TIFFReadDirEntryErrIo = 3, |
| 60 | TIFFReadDirEntryErrRange = 4, |
| 61 | TIFFReadDirEntryErrPsdif = 5, |
| 62 | TIFFReadDirEntryErrSizesan = 6, |
| 63 | TIFFReadDirEntryErrAlloc = 7, |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 64 | }; |
| 65 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 66 | static enum TIFFReadDirEntryErr |
| 67 | TIFFReadDirEntryByte(TIFF *tif, TIFFDirEntry *direntry, uint8_t *value); |
| 68 | static enum TIFFReadDirEntryErr |
| 69 | TIFFReadDirEntrySbyte(TIFF *tif, TIFFDirEntry *direntry, int8_t *value); |
| 70 | static enum TIFFReadDirEntryErr |
| 71 | TIFFReadDirEntryShort(TIFF *tif, TIFFDirEntry *direntry, uint16_t *value); |
| 72 | static enum TIFFReadDirEntryErr |
| 73 | TIFFReadDirEntrySshort(TIFF *tif, TIFFDirEntry *direntry, int16_t *value); |
| 74 | static enum TIFFReadDirEntryErr |
| 75 | TIFFReadDirEntryLong(TIFF *tif, TIFFDirEntry *direntry, uint32_t *value); |
| 76 | static enum TIFFReadDirEntryErr |
| 77 | TIFFReadDirEntrySlong(TIFF *tif, TIFFDirEntry *direntry, int32_t *value); |
| 78 | static enum TIFFReadDirEntryErr |
| 79 | TIFFReadDirEntryLong8(TIFF *tif, TIFFDirEntry *direntry, uint64_t *value); |
| 80 | static enum TIFFReadDirEntryErr |
| 81 | TIFFReadDirEntrySlong8(TIFF *tif, TIFFDirEntry *direntry, int64_t *value); |
| 82 | static enum TIFFReadDirEntryErr |
| 83 | TIFFReadDirEntryFloat(TIFF *tif, TIFFDirEntry *direntry, float *value); |
| 84 | static enum TIFFReadDirEntryErr |
| 85 | TIFFReadDirEntryDouble(TIFF *tif, TIFFDirEntry *direntry, double *value); |
| 86 | static enum TIFFReadDirEntryErr |
| 87 | TIFFReadDirEntryIfd8(TIFF *tif, TIFFDirEntry *direntry, uint64_t *value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 88 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 89 | static enum TIFFReadDirEntryErr |
| 90 | TIFFReadDirEntryArray(TIFF *tif, TIFFDirEntry *direntry, uint32_t *count, |
| 91 | uint32_t desttypesize, void **value); |
| 92 | static enum TIFFReadDirEntryErr |
| 93 | TIFFReadDirEntryByteArray(TIFF *tif, TIFFDirEntry *direntry, uint8_t **value); |
| 94 | static enum TIFFReadDirEntryErr |
| 95 | TIFFReadDirEntrySbyteArray(TIFF *tif, TIFFDirEntry *direntry, int8_t **value); |
| 96 | static enum TIFFReadDirEntryErr |
| 97 | TIFFReadDirEntryShortArray(TIFF *tif, TIFFDirEntry *direntry, uint16_t **value); |
| 98 | static enum TIFFReadDirEntryErr |
| 99 | TIFFReadDirEntrySshortArray(TIFF *tif, TIFFDirEntry *direntry, int16_t **value); |
| 100 | static enum TIFFReadDirEntryErr |
| 101 | TIFFReadDirEntryLongArray(TIFF *tif, TIFFDirEntry *direntry, uint32_t **value); |
| 102 | static enum TIFFReadDirEntryErr |
| 103 | TIFFReadDirEntrySlongArray(TIFF *tif, TIFFDirEntry *direntry, int32_t **value); |
| 104 | static enum TIFFReadDirEntryErr |
| 105 | TIFFReadDirEntryLong8Array(TIFF *tif, TIFFDirEntry *direntry, uint64_t **value); |
| 106 | static enum TIFFReadDirEntryErr |
| 107 | TIFFReadDirEntrySlong8Array(TIFF *tif, TIFFDirEntry *direntry, int64_t **value); |
| 108 | static enum TIFFReadDirEntryErr |
| 109 | TIFFReadDirEntryFloatArray(TIFF *tif, TIFFDirEntry *direntry, float **value); |
| 110 | static enum TIFFReadDirEntryErr |
| 111 | TIFFReadDirEntryDoubleArray(TIFF *tif, TIFFDirEntry *direntry, double **value); |
| 112 | static enum TIFFReadDirEntryErr |
| 113 | TIFFReadDirEntryIfd8Array(TIFF *tif, TIFFDirEntry *direntry, uint64_t **value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 114 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 115 | static enum TIFFReadDirEntryErr |
| 116 | TIFFReadDirEntryPersampleShort(TIFF *tif, TIFFDirEntry *direntry, |
| 117 | uint16_t *value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 118 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 119 | static void TIFFReadDirEntryCheckedByte(TIFF *tif, TIFFDirEntry *direntry, |
| 120 | uint8_t *value); |
| 121 | static void TIFFReadDirEntryCheckedSbyte(TIFF *tif, TIFFDirEntry *direntry, |
| 122 | int8_t *value); |
| 123 | static void TIFFReadDirEntryCheckedShort(TIFF *tif, TIFFDirEntry *direntry, |
| 124 | uint16_t *value); |
| 125 | static void TIFFReadDirEntryCheckedSshort(TIFF *tif, TIFFDirEntry *direntry, |
| 126 | int16_t *value); |
| 127 | static void TIFFReadDirEntryCheckedLong(TIFF *tif, TIFFDirEntry *direntry, |
| 128 | uint32_t *value); |
| 129 | static void TIFFReadDirEntryCheckedSlong(TIFF *tif, TIFFDirEntry *direntry, |
| 130 | int32_t *value); |
| 131 | static enum TIFFReadDirEntryErr |
| 132 | TIFFReadDirEntryCheckedLong8(TIFF *tif, TIFFDirEntry *direntry, |
| 133 | uint64_t *value); |
| 134 | static enum TIFFReadDirEntryErr |
| 135 | TIFFReadDirEntryCheckedSlong8(TIFF *tif, TIFFDirEntry *direntry, |
| 136 | int64_t *value); |
| 137 | static enum TIFFReadDirEntryErr |
| 138 | TIFFReadDirEntryCheckedRational(TIFF *tif, TIFFDirEntry *direntry, |
| 139 | double *value); |
| 140 | static enum TIFFReadDirEntryErr |
| 141 | TIFFReadDirEntryCheckedSrational(TIFF *tif, TIFFDirEntry *direntry, |
| 142 | double *value); |
| 143 | static void TIFFReadDirEntryCheckedFloat(TIFF *tif, TIFFDirEntry *direntry, |
| 144 | float *value); |
| 145 | static enum TIFFReadDirEntryErr |
| 146 | TIFFReadDirEntryCheckedDouble(TIFF *tif, TIFFDirEntry *direntry, double *value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 147 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 148 | static enum TIFFReadDirEntryErr |
| 149 | TIFFReadDirEntryCheckRangeByteSbyte(int8_t value); |
| 150 | static enum TIFFReadDirEntryErr |
| 151 | TIFFReadDirEntryCheckRangeByteShort(uint16_t value); |
| 152 | static enum TIFFReadDirEntryErr |
| 153 | TIFFReadDirEntryCheckRangeByteSshort(int16_t value); |
| 154 | static enum TIFFReadDirEntryErr |
| 155 | TIFFReadDirEntryCheckRangeByteLong(uint32_t value); |
| 156 | static enum TIFFReadDirEntryErr |
| 157 | TIFFReadDirEntryCheckRangeByteSlong(int32_t value); |
| 158 | static enum TIFFReadDirEntryErr |
| 159 | TIFFReadDirEntryCheckRangeByteLong8(uint64_t value); |
| 160 | static enum TIFFReadDirEntryErr |
| 161 | TIFFReadDirEntryCheckRangeByteSlong8(int64_t value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 162 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 163 | static enum TIFFReadDirEntryErr |
| 164 | TIFFReadDirEntryCheckRangeSbyteByte(uint8_t value); |
| 165 | static enum TIFFReadDirEntryErr |
| 166 | TIFFReadDirEntryCheckRangeSbyteShort(uint16_t value); |
| 167 | static enum TIFFReadDirEntryErr |
| 168 | TIFFReadDirEntryCheckRangeSbyteSshort(int16_t value); |
| 169 | static enum TIFFReadDirEntryErr |
| 170 | TIFFReadDirEntryCheckRangeSbyteLong(uint32_t value); |
| 171 | static enum TIFFReadDirEntryErr |
| 172 | TIFFReadDirEntryCheckRangeSbyteSlong(int32_t value); |
| 173 | static enum TIFFReadDirEntryErr |
| 174 | TIFFReadDirEntryCheckRangeSbyteLong8(uint64_t value); |
| 175 | static enum TIFFReadDirEntryErr |
| 176 | TIFFReadDirEntryCheckRangeSbyteSlong8(int64_t value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 177 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 178 | static enum TIFFReadDirEntryErr |
| 179 | TIFFReadDirEntryCheckRangeShortSbyte(int8_t value); |
| 180 | static enum TIFFReadDirEntryErr |
| 181 | TIFFReadDirEntryCheckRangeShortSshort(int16_t value); |
| 182 | static enum TIFFReadDirEntryErr |
| 183 | TIFFReadDirEntryCheckRangeShortLong(uint32_t value); |
| 184 | static enum TIFFReadDirEntryErr |
| 185 | TIFFReadDirEntryCheckRangeShortSlong(int32_t value); |
| 186 | static enum TIFFReadDirEntryErr |
| 187 | TIFFReadDirEntryCheckRangeShortLong8(uint64_t value); |
| 188 | static enum TIFFReadDirEntryErr |
| 189 | TIFFReadDirEntryCheckRangeShortSlong8(int64_t value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 190 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 191 | static enum TIFFReadDirEntryErr |
| 192 | TIFFReadDirEntryCheckRangeSshortShort(uint16_t value); |
| 193 | static enum TIFFReadDirEntryErr |
| 194 | TIFFReadDirEntryCheckRangeSshortLong(uint32_t value); |
| 195 | static enum TIFFReadDirEntryErr |
| 196 | TIFFReadDirEntryCheckRangeSshortSlong(int32_t value); |
| 197 | static enum TIFFReadDirEntryErr |
| 198 | TIFFReadDirEntryCheckRangeSshortLong8(uint64_t value); |
| 199 | static enum TIFFReadDirEntryErr |
| 200 | TIFFReadDirEntryCheckRangeSshortSlong8(int64_t value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 201 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 202 | static enum TIFFReadDirEntryErr |
| 203 | TIFFReadDirEntryCheckRangeLongSbyte(int8_t value); |
| 204 | static enum TIFFReadDirEntryErr |
| 205 | TIFFReadDirEntryCheckRangeLongSshort(int16_t value); |
| 206 | static enum TIFFReadDirEntryErr |
| 207 | TIFFReadDirEntryCheckRangeLongSlong(int32_t value); |
| 208 | static enum TIFFReadDirEntryErr |
| 209 | TIFFReadDirEntryCheckRangeLongLong8(uint64_t value); |
| 210 | static enum TIFFReadDirEntryErr |
| 211 | TIFFReadDirEntryCheckRangeLongSlong8(int64_t value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 212 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 213 | static enum TIFFReadDirEntryErr |
| 214 | TIFFReadDirEntryCheckRangeSlongLong(uint32_t value); |
| 215 | static enum TIFFReadDirEntryErr |
| 216 | TIFFReadDirEntryCheckRangeSlongLong8(uint64_t value); |
| 217 | static enum TIFFReadDirEntryErr |
| 218 | TIFFReadDirEntryCheckRangeSlongSlong8(int64_t value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 219 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 220 | static enum TIFFReadDirEntryErr |
| 221 | TIFFReadDirEntryCheckRangeLong8Sbyte(int8_t value); |
| 222 | static enum TIFFReadDirEntryErr |
| 223 | TIFFReadDirEntryCheckRangeLong8Sshort(int16_t value); |
| 224 | static enum TIFFReadDirEntryErr |
| 225 | TIFFReadDirEntryCheckRangeLong8Slong(int32_t value); |
| 226 | static enum TIFFReadDirEntryErr |
| 227 | TIFFReadDirEntryCheckRangeLong8Slong8(int64_t value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 228 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 229 | static enum TIFFReadDirEntryErr |
| 230 | TIFFReadDirEntryCheckRangeSlong8Long8(uint64_t value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 231 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 232 | static enum TIFFReadDirEntryErr TIFFReadDirEntryData(TIFF *tif, uint64_t offset, |
| 233 | tmsize_t size, void *dest); |
| 234 | static void TIFFReadDirEntryOutputErr(TIFF *tif, enum TIFFReadDirEntryErr err, |
| 235 | const char *module, const char *tagname, |
| 236 | int recover); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 237 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 238 | static void TIFFReadDirectoryCheckOrder(TIFF *tif, TIFFDirEntry *dir, |
| 239 | uint16_t dircount); |
| 240 | static TIFFDirEntry *TIFFReadDirectoryFindEntry(TIFF *tif, TIFFDirEntry *dir, |
| 241 | uint16_t dircount, |
| 242 | uint16_t tagid); |
| 243 | static void TIFFReadDirectoryFindFieldInfo(TIFF *tif, uint16_t tagid, |
| 244 | uint32_t *fii); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 245 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 246 | static int EstimateStripByteCounts(TIFF *tif, TIFFDirEntry *dir, |
| 247 | uint16_t dircount); |
| 248 | static void MissingRequired(TIFF *, const char *); |
| 249 | static int CheckDirCount(TIFF *, TIFFDirEntry *, uint32_t); |
| 250 | static uint16_t TIFFFetchDirectory(TIFF *tif, uint64_t diroff, |
| 251 | TIFFDirEntry **pdir, uint64_t *nextdiroff); |
| 252 | static int TIFFFetchNormalTag(TIFF *, TIFFDirEntry *, int recover); |
| 253 | static int TIFFFetchStripThing(TIFF *tif, TIFFDirEntry *dir, uint32_t nstrips, |
| 254 | uint64_t **lpp); |
| 255 | static int TIFFFetchSubjectDistance(TIFF *, TIFFDirEntry *); |
| 256 | static void ChopUpSingleUncompressedStrip(TIFF *); |
| 257 | static void TryChopUpUncompressedBigTiff(TIFF *); |
| 258 | static uint64_t TIFFReadUInt64(const uint8_t *value); |
| 259 | static int _TIFFGetMaxColorChannels(uint16_t photometric); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 260 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 261 | static int _TIFFFillStrilesInternal(TIFF *tif, int loadStripByteCount); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 262 | |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 263 | typedef union _UInt64Aligned_t |
| 264 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 265 | double d; |
| 266 | uint64_t l; |
| 267 | uint32_t i[2]; |
| 268 | uint16_t s[4]; |
| 269 | uint8_t c[8]; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 270 | } UInt64Aligned_t; |
| 271 | |
| 272 | /* |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 273 | Unaligned safe copy of a uint64_t value from an octet array. |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 274 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 275 | static uint64_t TIFFReadUInt64(const uint8_t *value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 276 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 277 | UInt64Aligned_t result; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 278 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 279 | result.c[0] = value[0]; |
| 280 | result.c[1] = value[1]; |
| 281 | result.c[2] = value[2]; |
| 282 | result.c[3] = value[3]; |
| 283 | result.c[4] = value[4]; |
| 284 | result.c[5] = value[5]; |
| 285 | result.c[6] = value[6]; |
| 286 | result.c[7] = value[7]; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 287 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 288 | return result.l; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 289 | } |
| 290 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 291 | static enum TIFFReadDirEntryErr |
| 292 | TIFFReadDirEntryByte(TIFF *tif, TIFFDirEntry *direntry, uint8_t *value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 293 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 294 | enum TIFFReadDirEntryErr err; |
| 295 | if (direntry->tdir_count != 1) |
| 296 | return (TIFFReadDirEntryErrCount); |
| 297 | switch (direntry->tdir_type) |
| 298 | { |
| 299 | case TIFF_BYTE: |
| 300 | case TIFF_UNDEFINED: /* Support to read TIFF_UNDEFINED with |
| 301 | field_readcount==1 */ |
| 302 | TIFFReadDirEntryCheckedByte(tif, direntry, value); |
| 303 | return (TIFFReadDirEntryErrOk); |
| 304 | case TIFF_SBYTE: |
| 305 | { |
| 306 | int8_t m; |
| 307 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
| 308 | err = TIFFReadDirEntryCheckRangeByteSbyte(m); |
| 309 | if (err != TIFFReadDirEntryErrOk) |
| 310 | return (err); |
| 311 | *value = (uint8_t)m; |
| 312 | return (TIFFReadDirEntryErrOk); |
| 313 | } |
| 314 | case TIFF_SHORT: |
| 315 | { |
| 316 | uint16_t m; |
| 317 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
| 318 | err = TIFFReadDirEntryCheckRangeByteShort(m); |
| 319 | if (err != TIFFReadDirEntryErrOk) |
| 320 | return (err); |
| 321 | *value = (uint8_t)m; |
| 322 | return (TIFFReadDirEntryErrOk); |
| 323 | } |
| 324 | case TIFF_SSHORT: |
| 325 | { |
| 326 | int16_t m; |
| 327 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
| 328 | err = TIFFReadDirEntryCheckRangeByteSshort(m); |
| 329 | if (err != TIFFReadDirEntryErrOk) |
| 330 | return (err); |
| 331 | *value = (uint8_t)m; |
| 332 | return (TIFFReadDirEntryErrOk); |
| 333 | } |
| 334 | case TIFF_LONG: |
| 335 | { |
| 336 | uint32_t m; |
| 337 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
| 338 | err = TIFFReadDirEntryCheckRangeByteLong(m); |
| 339 | if (err != TIFFReadDirEntryErrOk) |
| 340 | return (err); |
| 341 | *value = (uint8_t)m; |
| 342 | return (TIFFReadDirEntryErrOk); |
| 343 | } |
| 344 | case TIFF_SLONG: |
| 345 | { |
| 346 | int32_t m; |
| 347 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
| 348 | err = TIFFReadDirEntryCheckRangeByteSlong(m); |
| 349 | if (err != TIFFReadDirEntryErrOk) |
| 350 | return (err); |
| 351 | *value = (uint8_t)m; |
| 352 | return (TIFFReadDirEntryErrOk); |
| 353 | } |
| 354 | case TIFF_LONG8: |
| 355 | { |
| 356 | uint64_t m; |
| 357 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
| 358 | if (err != TIFFReadDirEntryErrOk) |
| 359 | return (err); |
| 360 | err = TIFFReadDirEntryCheckRangeByteLong8(m); |
| 361 | if (err != TIFFReadDirEntryErrOk) |
| 362 | return (err); |
| 363 | *value = (uint8_t)m; |
| 364 | return (TIFFReadDirEntryErrOk); |
| 365 | } |
| 366 | case TIFF_SLONG8: |
| 367 | { |
| 368 | int64_t m; |
| 369 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
| 370 | if (err != TIFFReadDirEntryErrOk) |
| 371 | return (err); |
| 372 | err = TIFFReadDirEntryCheckRangeByteSlong8(m); |
| 373 | if (err != TIFFReadDirEntryErrOk) |
| 374 | return (err); |
| 375 | *value = (uint8_t)m; |
| 376 | return (TIFFReadDirEntryErrOk); |
| 377 | } |
| 378 | default: |
| 379 | return (TIFFReadDirEntryErrType); |
| 380 | } |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 381 | } |
| 382 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 383 | static enum TIFFReadDirEntryErr |
| 384 | TIFFReadDirEntrySbyte(TIFF *tif, TIFFDirEntry *direntry, int8_t *value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 385 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 386 | enum TIFFReadDirEntryErr err; |
| 387 | if (direntry->tdir_count != 1) |
| 388 | return (TIFFReadDirEntryErrCount); |
| 389 | switch (direntry->tdir_type) |
| 390 | { |
| 391 | case TIFF_BYTE: |
| 392 | case TIFF_UNDEFINED: /* Support to read TIFF_UNDEFINED with |
| 393 | field_readcount==1 */ |
| 394 | { |
| 395 | uint8_t m; |
| 396 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
| 397 | err = TIFFReadDirEntryCheckRangeSbyteByte(m); |
| 398 | if (err != TIFFReadDirEntryErrOk) |
| 399 | return (err); |
| 400 | *value = (int8_t)m; |
| 401 | return (TIFFReadDirEntryErrOk); |
| 402 | } |
| 403 | case TIFF_SBYTE: |
| 404 | { |
| 405 | TIFFReadDirEntryCheckedSbyte(tif, direntry, value); |
| 406 | return (TIFFReadDirEntryErrOk); |
| 407 | } |
| 408 | case TIFF_SHORT: |
| 409 | { |
| 410 | uint16_t m; |
| 411 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
| 412 | err = TIFFReadDirEntryCheckRangeSbyteShort(m); |
| 413 | if (err != TIFFReadDirEntryErrOk) |
| 414 | return (err); |
| 415 | *value = (int8_t)m; |
| 416 | return (TIFFReadDirEntryErrOk); |
| 417 | } |
| 418 | case TIFF_SSHORT: |
| 419 | { |
| 420 | int16_t m; |
| 421 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
| 422 | err = TIFFReadDirEntryCheckRangeSbyteSshort(m); |
| 423 | if (err != TIFFReadDirEntryErrOk) |
| 424 | return (err); |
| 425 | *value = (int8_t)m; |
| 426 | return (TIFFReadDirEntryErrOk); |
| 427 | } |
| 428 | case TIFF_LONG: |
| 429 | { |
| 430 | uint32_t m; |
| 431 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
| 432 | err = TIFFReadDirEntryCheckRangeSbyteLong(m); |
| 433 | if (err != TIFFReadDirEntryErrOk) |
| 434 | return (err); |
| 435 | *value = (int8_t)m; |
| 436 | return (TIFFReadDirEntryErrOk); |
| 437 | } |
| 438 | case TIFF_SLONG: |
| 439 | { |
| 440 | int32_t m; |
| 441 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
| 442 | err = TIFFReadDirEntryCheckRangeSbyteSlong(m); |
| 443 | if (err != TIFFReadDirEntryErrOk) |
| 444 | return (err); |
| 445 | *value = (int8_t)m; |
| 446 | return (TIFFReadDirEntryErrOk); |
| 447 | } |
| 448 | case TIFF_LONG8: |
| 449 | { |
| 450 | uint64_t m; |
| 451 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
| 452 | if (err != TIFFReadDirEntryErrOk) |
| 453 | return (err); |
| 454 | err = TIFFReadDirEntryCheckRangeSbyteLong8(m); |
| 455 | if (err != TIFFReadDirEntryErrOk) |
| 456 | return (err); |
| 457 | *value = (int8_t)m; |
| 458 | return (TIFFReadDirEntryErrOk); |
| 459 | } |
| 460 | case TIFF_SLONG8: |
| 461 | { |
| 462 | int64_t m; |
| 463 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
| 464 | if (err != TIFFReadDirEntryErrOk) |
| 465 | return (err); |
| 466 | err = TIFFReadDirEntryCheckRangeSbyteSlong8(m); |
| 467 | if (err != TIFFReadDirEntryErrOk) |
| 468 | return (err); |
| 469 | *value = (int8_t)m; |
| 470 | return (TIFFReadDirEntryErrOk); |
| 471 | } |
| 472 | default: |
| 473 | return (TIFFReadDirEntryErrType); |
| 474 | } |
| 475 | } /*-- TIFFReadDirEntrySbyte() --*/ |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 476 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 477 | static enum TIFFReadDirEntryErr |
| 478 | TIFFReadDirEntryShort(TIFF *tif, TIFFDirEntry *direntry, uint16_t *value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 479 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 480 | enum TIFFReadDirEntryErr err; |
| 481 | if (direntry->tdir_count != 1) |
| 482 | return (TIFFReadDirEntryErrCount); |
| 483 | switch (direntry->tdir_type) |
| 484 | { |
| 485 | case TIFF_BYTE: |
| 486 | { |
| 487 | uint8_t m; |
| 488 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
| 489 | *value = (uint16_t)m; |
| 490 | return (TIFFReadDirEntryErrOk); |
| 491 | } |
| 492 | case TIFF_SBYTE: |
| 493 | { |
| 494 | int8_t m; |
| 495 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
| 496 | err = TIFFReadDirEntryCheckRangeShortSbyte(m); |
| 497 | if (err != TIFFReadDirEntryErrOk) |
| 498 | return (err); |
| 499 | *value = (uint16_t)m; |
| 500 | return (TIFFReadDirEntryErrOk); |
| 501 | } |
| 502 | case TIFF_SHORT: |
| 503 | TIFFReadDirEntryCheckedShort(tif, direntry, value); |
| 504 | return (TIFFReadDirEntryErrOk); |
| 505 | case TIFF_SSHORT: |
| 506 | { |
| 507 | int16_t m; |
| 508 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
| 509 | err = TIFFReadDirEntryCheckRangeShortSshort(m); |
| 510 | if (err != TIFFReadDirEntryErrOk) |
| 511 | return (err); |
| 512 | *value = (uint16_t)m; |
| 513 | return (TIFFReadDirEntryErrOk); |
| 514 | } |
| 515 | case TIFF_LONG: |
| 516 | { |
| 517 | uint32_t m; |
| 518 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
| 519 | err = TIFFReadDirEntryCheckRangeShortLong(m); |
| 520 | if (err != TIFFReadDirEntryErrOk) |
| 521 | return (err); |
| 522 | *value = (uint16_t)m; |
| 523 | return (TIFFReadDirEntryErrOk); |
| 524 | } |
| 525 | case TIFF_SLONG: |
| 526 | { |
| 527 | int32_t m; |
| 528 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
| 529 | err = TIFFReadDirEntryCheckRangeShortSlong(m); |
| 530 | if (err != TIFFReadDirEntryErrOk) |
| 531 | return (err); |
| 532 | *value = (uint16_t)m; |
| 533 | return (TIFFReadDirEntryErrOk); |
| 534 | } |
| 535 | case TIFF_LONG8: |
| 536 | { |
| 537 | uint64_t m; |
| 538 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
| 539 | if (err != TIFFReadDirEntryErrOk) |
| 540 | return (err); |
| 541 | err = TIFFReadDirEntryCheckRangeShortLong8(m); |
| 542 | if (err != TIFFReadDirEntryErrOk) |
| 543 | return (err); |
| 544 | *value = (uint16_t)m; |
| 545 | return (TIFFReadDirEntryErrOk); |
| 546 | } |
| 547 | case TIFF_SLONG8: |
| 548 | { |
| 549 | int64_t m; |
| 550 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
| 551 | if (err != TIFFReadDirEntryErrOk) |
| 552 | return (err); |
| 553 | err = TIFFReadDirEntryCheckRangeShortSlong8(m); |
| 554 | if (err != TIFFReadDirEntryErrOk) |
| 555 | return (err); |
| 556 | *value = (uint16_t)m; |
| 557 | return (TIFFReadDirEntryErrOk); |
| 558 | } |
| 559 | default: |
| 560 | return (TIFFReadDirEntryErrType); |
| 561 | } |
| 562 | } /*-- TIFFReadDirEntryShort() --*/ |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 563 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 564 | static enum TIFFReadDirEntryErr |
| 565 | TIFFReadDirEntrySshort(TIFF *tif, TIFFDirEntry *direntry, int16_t *value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 566 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 567 | enum TIFFReadDirEntryErr err; |
| 568 | if (direntry->tdir_count != 1) |
| 569 | return (TIFFReadDirEntryErrCount); |
| 570 | switch (direntry->tdir_type) |
| 571 | { |
| 572 | case TIFF_BYTE: |
| 573 | { |
| 574 | uint8_t m; |
| 575 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
| 576 | *value = (int16_t)m; |
| 577 | return (TIFFReadDirEntryErrOk); |
| 578 | } |
| 579 | case TIFF_SBYTE: |
| 580 | { |
| 581 | int8_t m; |
| 582 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
| 583 | *value = (int16_t)m; |
| 584 | return (TIFFReadDirEntryErrOk); |
| 585 | } |
| 586 | case TIFF_SHORT: |
| 587 | { |
| 588 | uint16_t m; |
| 589 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
| 590 | err = TIFFReadDirEntryCheckRangeSshortShort(m); |
| 591 | if (err != TIFFReadDirEntryErrOk) |
| 592 | return (err); |
| 593 | *value = (uint16_t)m; |
| 594 | return (TIFFReadDirEntryErrOk); |
| 595 | } |
| 596 | case TIFF_SSHORT: |
| 597 | TIFFReadDirEntryCheckedSshort(tif, direntry, value); |
| 598 | return (TIFFReadDirEntryErrOk); |
| 599 | case TIFF_LONG: |
| 600 | { |
| 601 | uint32_t m; |
| 602 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
| 603 | err = TIFFReadDirEntryCheckRangeSshortLong(m); |
| 604 | if (err != TIFFReadDirEntryErrOk) |
| 605 | return (err); |
| 606 | *value = (int16_t)m; |
| 607 | return (TIFFReadDirEntryErrOk); |
| 608 | } |
| 609 | case TIFF_SLONG: |
| 610 | { |
| 611 | int32_t m; |
| 612 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
| 613 | err = TIFFReadDirEntryCheckRangeSshortSlong(m); |
| 614 | if (err != TIFFReadDirEntryErrOk) |
| 615 | return (err); |
| 616 | *value = (int16_t)m; |
| 617 | return (TIFFReadDirEntryErrOk); |
| 618 | } |
| 619 | case TIFF_LONG8: |
| 620 | { |
| 621 | uint64_t m; |
| 622 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
| 623 | if (err != TIFFReadDirEntryErrOk) |
| 624 | return (err); |
| 625 | err = TIFFReadDirEntryCheckRangeSshortLong8(m); |
| 626 | if (err != TIFFReadDirEntryErrOk) |
| 627 | return (err); |
| 628 | *value = (int16_t)m; |
| 629 | return (TIFFReadDirEntryErrOk); |
| 630 | } |
| 631 | case TIFF_SLONG8: |
| 632 | { |
| 633 | int64_t m; |
| 634 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
| 635 | if (err != TIFFReadDirEntryErrOk) |
| 636 | return (err); |
| 637 | err = TIFFReadDirEntryCheckRangeSshortSlong8(m); |
| 638 | if (err != TIFFReadDirEntryErrOk) |
| 639 | return (err); |
| 640 | *value = (int16_t)m; |
| 641 | return (TIFFReadDirEntryErrOk); |
| 642 | } |
| 643 | default: |
| 644 | return (TIFFReadDirEntryErrType); |
| 645 | } |
| 646 | } /*-- TIFFReadDirEntrySshort() --*/ |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 647 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 648 | static enum TIFFReadDirEntryErr |
| 649 | TIFFReadDirEntryLong(TIFF *tif, TIFFDirEntry *direntry, uint32_t *value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 650 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 651 | enum TIFFReadDirEntryErr err; |
| 652 | if (direntry->tdir_count != 1) |
| 653 | return (TIFFReadDirEntryErrCount); |
| 654 | switch (direntry->tdir_type) |
| 655 | { |
| 656 | case TIFF_BYTE: |
| 657 | { |
| 658 | uint8_t m; |
| 659 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
| 660 | *value = (uint32_t)m; |
| 661 | return (TIFFReadDirEntryErrOk); |
| 662 | } |
| 663 | case TIFF_SBYTE: |
| 664 | { |
| 665 | int8_t m; |
| 666 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
| 667 | err = TIFFReadDirEntryCheckRangeLongSbyte(m); |
| 668 | if (err != TIFFReadDirEntryErrOk) |
| 669 | return (err); |
| 670 | *value = (uint32_t)m; |
| 671 | return (TIFFReadDirEntryErrOk); |
| 672 | } |
| 673 | case TIFF_SHORT: |
| 674 | { |
| 675 | uint16_t m; |
| 676 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
| 677 | *value = (uint32_t)m; |
| 678 | return (TIFFReadDirEntryErrOk); |
| 679 | } |
| 680 | case TIFF_SSHORT: |
| 681 | { |
| 682 | int16_t m; |
| 683 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
| 684 | err = TIFFReadDirEntryCheckRangeLongSshort(m); |
| 685 | if (err != TIFFReadDirEntryErrOk) |
| 686 | return (err); |
| 687 | *value = (uint32_t)m; |
| 688 | return (TIFFReadDirEntryErrOk); |
| 689 | } |
| 690 | case TIFF_LONG: |
| 691 | TIFFReadDirEntryCheckedLong(tif, direntry, value); |
| 692 | return (TIFFReadDirEntryErrOk); |
| 693 | case TIFF_SLONG: |
| 694 | { |
| 695 | int32_t m; |
| 696 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
| 697 | err = TIFFReadDirEntryCheckRangeLongSlong(m); |
| 698 | if (err != TIFFReadDirEntryErrOk) |
| 699 | return (err); |
| 700 | *value = (uint32_t)m; |
| 701 | return (TIFFReadDirEntryErrOk); |
| 702 | } |
| 703 | case TIFF_LONG8: |
| 704 | { |
| 705 | uint64_t m; |
| 706 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
| 707 | if (err != TIFFReadDirEntryErrOk) |
| 708 | return (err); |
| 709 | err = TIFFReadDirEntryCheckRangeLongLong8(m); |
| 710 | if (err != TIFFReadDirEntryErrOk) |
| 711 | return (err); |
| 712 | *value = (uint32_t)m; |
| 713 | return (TIFFReadDirEntryErrOk); |
| 714 | } |
| 715 | case TIFF_SLONG8: |
| 716 | { |
| 717 | int64_t m; |
| 718 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
| 719 | if (err != TIFFReadDirEntryErrOk) |
| 720 | return (err); |
| 721 | err = TIFFReadDirEntryCheckRangeLongSlong8(m); |
| 722 | if (err != TIFFReadDirEntryErrOk) |
| 723 | return (err); |
| 724 | *value = (uint32_t)m; |
| 725 | return (TIFFReadDirEntryErrOk); |
| 726 | } |
| 727 | default: |
| 728 | return (TIFFReadDirEntryErrType); |
| 729 | } |
| 730 | } /*-- TIFFReadDirEntryLong() --*/ |
| 731 | |
| 732 | static enum TIFFReadDirEntryErr |
| 733 | TIFFReadDirEntrySlong(TIFF *tif, TIFFDirEntry *direntry, int32_t *value) |
| 734 | { |
| 735 | enum TIFFReadDirEntryErr err; |
| 736 | if (direntry->tdir_count != 1) |
| 737 | return (TIFFReadDirEntryErrCount); |
| 738 | switch (direntry->tdir_type) |
| 739 | { |
| 740 | case TIFF_BYTE: |
| 741 | { |
| 742 | uint8_t m; |
| 743 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
| 744 | *value = (int32_t)m; |
| 745 | return (TIFFReadDirEntryErrOk); |
| 746 | } |
| 747 | case TIFF_SBYTE: |
| 748 | { |
| 749 | int8_t m; |
| 750 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
| 751 | *value = (int32_t)m; |
| 752 | return (TIFFReadDirEntryErrOk); |
| 753 | } |
| 754 | case TIFF_SHORT: |
| 755 | { |
| 756 | uint16_t m; |
| 757 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
| 758 | *value = (int32_t)m; |
| 759 | return (TIFFReadDirEntryErrOk); |
| 760 | } |
| 761 | case TIFF_SSHORT: |
| 762 | { |
| 763 | int16_t m; |
| 764 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
| 765 | *value = (int32_t)m; |
| 766 | return (TIFFReadDirEntryErrOk); |
| 767 | } |
| 768 | case TIFF_LONG: |
| 769 | { |
| 770 | uint32_t m; |
| 771 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
| 772 | err = TIFFReadDirEntryCheckRangeSlongLong(m); |
| 773 | if (err != TIFFReadDirEntryErrOk) |
| 774 | return (err); |
| 775 | *value = (int32_t)m; |
| 776 | return (TIFFReadDirEntryErrOk); |
| 777 | } |
| 778 | case TIFF_SLONG: |
| 779 | TIFFReadDirEntryCheckedSlong(tif, direntry, value); |
| 780 | return (TIFFReadDirEntryErrOk); |
| 781 | case TIFF_LONG8: |
| 782 | { |
| 783 | uint64_t m; |
| 784 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
| 785 | if (err != TIFFReadDirEntryErrOk) |
| 786 | return (err); |
| 787 | err = TIFFReadDirEntryCheckRangeSlongLong8(m); |
| 788 | if (err != TIFFReadDirEntryErrOk) |
| 789 | return (err); |
| 790 | *value = (int32_t)m; |
| 791 | return (TIFFReadDirEntryErrOk); |
| 792 | } |
| 793 | case TIFF_SLONG8: |
| 794 | { |
| 795 | int64_t m; |
| 796 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
| 797 | if (err != TIFFReadDirEntryErrOk) |
| 798 | return (err); |
| 799 | err = TIFFReadDirEntryCheckRangeSlongSlong8(m); |
| 800 | if (err != TIFFReadDirEntryErrOk) |
| 801 | return (err); |
| 802 | *value = (int32_t)m; |
| 803 | return (TIFFReadDirEntryErrOk); |
| 804 | } |
| 805 | default: |
| 806 | return (TIFFReadDirEntryErrType); |
| 807 | } |
| 808 | } /*-- TIFFReadDirEntrySlong() --*/ |
| 809 | |
| 810 | static enum TIFFReadDirEntryErr |
| 811 | TIFFReadDirEntryLong8(TIFF *tif, TIFFDirEntry *direntry, uint64_t *value) |
| 812 | { |
| 813 | enum TIFFReadDirEntryErr err; |
| 814 | if (direntry->tdir_count != 1) |
| 815 | return (TIFFReadDirEntryErrCount); |
| 816 | switch (direntry->tdir_type) |
| 817 | { |
| 818 | case TIFF_BYTE: |
| 819 | { |
| 820 | uint8_t m; |
| 821 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
| 822 | *value = (uint64_t)m; |
| 823 | return (TIFFReadDirEntryErrOk); |
| 824 | } |
| 825 | case TIFF_SBYTE: |
| 826 | { |
| 827 | int8_t m; |
| 828 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
| 829 | err = TIFFReadDirEntryCheckRangeLong8Sbyte(m); |
| 830 | if (err != TIFFReadDirEntryErrOk) |
| 831 | return (err); |
| 832 | *value = (uint64_t)m; |
| 833 | return (TIFFReadDirEntryErrOk); |
| 834 | } |
| 835 | case TIFF_SHORT: |
| 836 | { |
| 837 | uint16_t m; |
| 838 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
| 839 | *value = (uint64_t)m; |
| 840 | return (TIFFReadDirEntryErrOk); |
| 841 | } |
| 842 | case TIFF_SSHORT: |
| 843 | { |
| 844 | int16_t m; |
| 845 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
| 846 | err = TIFFReadDirEntryCheckRangeLong8Sshort(m); |
| 847 | if (err != TIFFReadDirEntryErrOk) |
| 848 | return (err); |
| 849 | *value = (uint64_t)m; |
| 850 | return (TIFFReadDirEntryErrOk); |
| 851 | } |
| 852 | case TIFF_LONG: |
| 853 | { |
| 854 | uint32_t m; |
| 855 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
| 856 | *value = (uint64_t)m; |
| 857 | return (TIFFReadDirEntryErrOk); |
| 858 | } |
| 859 | case TIFF_SLONG: |
| 860 | { |
| 861 | int32_t m; |
| 862 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
| 863 | err = TIFFReadDirEntryCheckRangeLong8Slong(m); |
| 864 | if (err != TIFFReadDirEntryErrOk) |
| 865 | return (err); |
| 866 | *value = (uint64_t)m; |
| 867 | return (TIFFReadDirEntryErrOk); |
| 868 | } |
| 869 | case TIFF_LONG8: |
| 870 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, value); |
| 871 | return (err); |
| 872 | case TIFF_SLONG8: |
| 873 | { |
| 874 | int64_t m; |
| 875 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
| 876 | if (err != TIFFReadDirEntryErrOk) |
| 877 | return (err); |
| 878 | err = TIFFReadDirEntryCheckRangeLong8Slong8(m); |
| 879 | if (err != TIFFReadDirEntryErrOk) |
| 880 | return (err); |
| 881 | *value = (uint64_t)m; |
| 882 | return (TIFFReadDirEntryErrOk); |
| 883 | } |
| 884 | default: |
| 885 | return (TIFFReadDirEntryErrType); |
| 886 | } |
| 887 | } /*-- TIFFReadDirEntryLong8() --*/ |
| 888 | |
| 889 | static enum TIFFReadDirEntryErr |
| 890 | TIFFReadDirEntrySlong8(TIFF *tif, TIFFDirEntry *direntry, int64_t *value) |
| 891 | { |
| 892 | enum TIFFReadDirEntryErr err; |
| 893 | if (direntry->tdir_count != 1) |
| 894 | return (TIFFReadDirEntryErrCount); |
| 895 | switch (direntry->tdir_type) |
| 896 | { |
| 897 | case TIFF_BYTE: |
| 898 | { |
| 899 | uint8_t m; |
| 900 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
| 901 | *value = (int64_t)m; |
| 902 | return (TIFFReadDirEntryErrOk); |
| 903 | } |
| 904 | case TIFF_SBYTE: |
| 905 | { |
| 906 | int8_t m; |
| 907 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
| 908 | *value = (int64_t)m; |
| 909 | return (TIFFReadDirEntryErrOk); |
| 910 | } |
| 911 | case TIFF_SHORT: |
| 912 | { |
| 913 | uint16_t m; |
| 914 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
| 915 | *value = (int64_t)m; |
| 916 | return (TIFFReadDirEntryErrOk); |
| 917 | } |
| 918 | case TIFF_SSHORT: |
| 919 | { |
| 920 | int16_t m; |
| 921 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
| 922 | *value = (int64_t)m; |
| 923 | return (TIFFReadDirEntryErrOk); |
| 924 | } |
| 925 | case TIFF_LONG: |
| 926 | { |
| 927 | uint32_t m; |
| 928 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
| 929 | *value = (int64_t)m; |
| 930 | return (TIFFReadDirEntryErrOk); |
| 931 | } |
| 932 | case TIFF_SLONG: |
| 933 | { |
| 934 | int32_t m; |
| 935 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
| 936 | *value = (int64_t)m; |
| 937 | return (TIFFReadDirEntryErrOk); |
| 938 | } |
| 939 | case TIFF_LONG8: |
| 940 | { |
| 941 | uint64_t m; |
| 942 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
| 943 | if (err != TIFFReadDirEntryErrOk) |
| 944 | return (err); |
| 945 | err = TIFFReadDirEntryCheckRangeSlong8Long8(m); |
| 946 | if (err != TIFFReadDirEntryErrOk) |
| 947 | return (err); |
| 948 | *value = (int64_t)m; |
| 949 | return (TIFFReadDirEntryErrOk); |
| 950 | } |
| 951 | case TIFF_SLONG8: |
| 952 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, value); |
| 953 | return (err); |
| 954 | default: |
| 955 | return (TIFFReadDirEntryErrType); |
| 956 | } |
| 957 | } /*-- TIFFReadDirEntrySlong8() --*/ |
| 958 | |
| 959 | static enum TIFFReadDirEntryErr |
| 960 | TIFFReadDirEntryFloat(TIFF *tif, TIFFDirEntry *direntry, float *value) |
| 961 | { |
| 962 | enum TIFFReadDirEntryErr err; |
| 963 | if (direntry->tdir_count != 1) |
| 964 | return (TIFFReadDirEntryErrCount); |
| 965 | switch (direntry->tdir_type) |
| 966 | { |
| 967 | case TIFF_BYTE: |
| 968 | { |
| 969 | uint8_t m; |
| 970 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
| 971 | *value = (float)m; |
| 972 | return (TIFFReadDirEntryErrOk); |
| 973 | } |
| 974 | case TIFF_SBYTE: |
| 975 | { |
| 976 | int8_t m; |
| 977 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
| 978 | *value = (float)m; |
| 979 | return (TIFFReadDirEntryErrOk); |
| 980 | } |
| 981 | case TIFF_SHORT: |
| 982 | { |
| 983 | uint16_t m; |
| 984 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
| 985 | *value = (float)m; |
| 986 | return (TIFFReadDirEntryErrOk); |
| 987 | } |
| 988 | case TIFF_SSHORT: |
| 989 | { |
| 990 | int16_t m; |
| 991 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
| 992 | *value = (float)m; |
| 993 | return (TIFFReadDirEntryErrOk); |
| 994 | } |
| 995 | case TIFF_LONG: |
| 996 | { |
| 997 | uint32_t m; |
| 998 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
| 999 | *value = (float)m; |
| 1000 | return (TIFFReadDirEntryErrOk); |
| 1001 | } |
| 1002 | case TIFF_SLONG: |
| 1003 | { |
| 1004 | int32_t m; |
| 1005 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
| 1006 | *value = (float)m; |
| 1007 | return (TIFFReadDirEntryErrOk); |
| 1008 | } |
| 1009 | case TIFF_LONG8: |
| 1010 | { |
| 1011 | uint64_t m; |
| 1012 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
| 1013 | if (err != TIFFReadDirEntryErrOk) |
| 1014 | return (err); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1015 | #if defined(__WIN32__) && (_MSC_VER < 1500) |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1016 | /* |
| 1017 | * XXX: MSVC 6.0 does not support conversion |
| 1018 | * of 64-bit integers into floating point |
| 1019 | * values. |
| 1020 | */ |
| 1021 | *value = _TIFFUInt64ToFloat(m); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1022 | #else |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1023 | *value = (float)m; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1024 | #endif |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1025 | return (TIFFReadDirEntryErrOk); |
| 1026 | } |
| 1027 | case TIFF_SLONG8: |
| 1028 | { |
| 1029 | int64_t m; |
| 1030 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
| 1031 | if (err != TIFFReadDirEntryErrOk) |
| 1032 | return (err); |
| 1033 | *value = (float)m; |
| 1034 | return (TIFFReadDirEntryErrOk); |
| 1035 | } |
| 1036 | case TIFF_RATIONAL: |
| 1037 | { |
| 1038 | double m; |
| 1039 | err = TIFFReadDirEntryCheckedRational(tif, direntry, &m); |
| 1040 | if (err != TIFFReadDirEntryErrOk) |
| 1041 | return (err); |
| 1042 | *value = (float)m; |
| 1043 | return (TIFFReadDirEntryErrOk); |
| 1044 | } |
| 1045 | case TIFF_SRATIONAL: |
| 1046 | { |
| 1047 | double m; |
| 1048 | err = TIFFReadDirEntryCheckedSrational(tif, direntry, &m); |
| 1049 | if (err != TIFFReadDirEntryErrOk) |
| 1050 | return (err); |
| 1051 | *value = (float)m; |
| 1052 | return (TIFFReadDirEntryErrOk); |
| 1053 | } |
| 1054 | case TIFF_FLOAT: |
| 1055 | TIFFReadDirEntryCheckedFloat(tif, direntry, value); |
| 1056 | return (TIFFReadDirEntryErrOk); |
| 1057 | case TIFF_DOUBLE: |
| 1058 | { |
| 1059 | double m; |
| 1060 | err = TIFFReadDirEntryCheckedDouble(tif, direntry, &m); |
| 1061 | if (err != TIFFReadDirEntryErrOk) |
| 1062 | return (err); |
| 1063 | if ((m > FLT_MAX) || (m < -FLT_MAX)) |
| 1064 | return (TIFFReadDirEntryErrRange); |
| 1065 | *value = (float)m; |
| 1066 | return (TIFFReadDirEntryErrOk); |
| 1067 | } |
| 1068 | default: |
| 1069 | return (TIFFReadDirEntryErrType); |
| 1070 | } |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1071 | } |
| 1072 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1073 | static enum TIFFReadDirEntryErr |
| 1074 | TIFFReadDirEntryDouble(TIFF *tif, TIFFDirEntry *direntry, double *value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1075 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1076 | enum TIFFReadDirEntryErr err; |
| 1077 | if (direntry->tdir_count != 1) |
| 1078 | return (TIFFReadDirEntryErrCount); |
| 1079 | switch (direntry->tdir_type) |
| 1080 | { |
| 1081 | case TIFF_BYTE: |
| 1082 | { |
| 1083 | uint8_t m; |
| 1084 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
| 1085 | *value = (double)m; |
| 1086 | return (TIFFReadDirEntryErrOk); |
| 1087 | } |
| 1088 | case TIFF_SBYTE: |
| 1089 | { |
| 1090 | int8_t m; |
| 1091 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
| 1092 | *value = (double)m; |
| 1093 | return (TIFFReadDirEntryErrOk); |
| 1094 | } |
| 1095 | case TIFF_SHORT: |
| 1096 | { |
| 1097 | uint16_t m; |
| 1098 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
| 1099 | *value = (double)m; |
| 1100 | return (TIFFReadDirEntryErrOk); |
| 1101 | } |
| 1102 | case TIFF_SSHORT: |
| 1103 | { |
| 1104 | int16_t m; |
| 1105 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
| 1106 | *value = (double)m; |
| 1107 | return (TIFFReadDirEntryErrOk); |
| 1108 | } |
| 1109 | case TIFF_LONG: |
| 1110 | { |
| 1111 | uint32_t m; |
| 1112 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
| 1113 | *value = (double)m; |
| 1114 | return (TIFFReadDirEntryErrOk); |
| 1115 | } |
| 1116 | case TIFF_SLONG: |
| 1117 | { |
| 1118 | int32_t m; |
| 1119 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
| 1120 | *value = (double)m; |
| 1121 | return (TIFFReadDirEntryErrOk); |
| 1122 | } |
| 1123 | case TIFF_LONG8: |
| 1124 | { |
| 1125 | uint64_t m; |
| 1126 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
| 1127 | if (err != TIFFReadDirEntryErrOk) |
| 1128 | return (err); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1129 | #if defined(__WIN32__) && (_MSC_VER < 1500) |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1130 | /* |
| 1131 | * XXX: MSVC 6.0 does not support conversion |
| 1132 | * of 64-bit integers into floating point |
| 1133 | * values. |
| 1134 | */ |
| 1135 | *value = _TIFFUInt64ToDouble(m); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1136 | #else |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1137 | *value = (double)m; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1138 | #endif |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1139 | return (TIFFReadDirEntryErrOk); |
| 1140 | } |
| 1141 | case TIFF_SLONG8: |
| 1142 | { |
| 1143 | int64_t m; |
| 1144 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
| 1145 | if (err != TIFFReadDirEntryErrOk) |
| 1146 | return (err); |
| 1147 | *value = (double)m; |
| 1148 | return (TIFFReadDirEntryErrOk); |
| 1149 | } |
| 1150 | case TIFF_RATIONAL: |
| 1151 | err = TIFFReadDirEntryCheckedRational(tif, direntry, value); |
| 1152 | return (err); |
| 1153 | case TIFF_SRATIONAL: |
| 1154 | err = TIFFReadDirEntryCheckedSrational(tif, direntry, value); |
| 1155 | return (err); |
| 1156 | case TIFF_FLOAT: |
| 1157 | { |
| 1158 | float m; |
| 1159 | TIFFReadDirEntryCheckedFloat(tif, direntry, &m); |
| 1160 | *value = (double)m; |
| 1161 | return (TIFFReadDirEntryErrOk); |
| 1162 | } |
| 1163 | case TIFF_DOUBLE: |
| 1164 | err = TIFFReadDirEntryCheckedDouble(tif, direntry, value); |
| 1165 | return (err); |
| 1166 | default: |
| 1167 | return (TIFFReadDirEntryErrType); |
| 1168 | } |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1169 | } |
| 1170 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1171 | static enum TIFFReadDirEntryErr |
| 1172 | TIFFReadDirEntryIfd8(TIFF *tif, TIFFDirEntry *direntry, uint64_t *value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1173 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1174 | enum TIFFReadDirEntryErr err; |
| 1175 | if (direntry->tdir_count != 1) |
| 1176 | return (TIFFReadDirEntryErrCount); |
| 1177 | switch (direntry->tdir_type) |
| 1178 | { |
| 1179 | case TIFF_LONG: |
| 1180 | case TIFF_IFD: |
| 1181 | { |
| 1182 | uint32_t m; |
| 1183 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
| 1184 | *value = (uint64_t)m; |
| 1185 | return (TIFFReadDirEntryErrOk); |
| 1186 | } |
| 1187 | case TIFF_LONG8: |
| 1188 | case TIFF_IFD8: |
| 1189 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, value); |
| 1190 | return (err); |
| 1191 | default: |
| 1192 | return (TIFFReadDirEntryErrType); |
| 1193 | } |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1194 | } |
| 1195 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1196 | #define INITIAL_THRESHOLD (1024 * 1024) |
| 1197 | #define THRESHOLD_MULTIPLIER 10 |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1198 | #define MAX_THRESHOLD \ |
| 1199 | (THRESHOLD_MULTIPLIER * THRESHOLD_MULTIPLIER * THRESHOLD_MULTIPLIER * \ |
| 1200 | INITIAL_THRESHOLD) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1201 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1202 | static enum TIFFReadDirEntryErr TIFFReadDirEntryDataAndRealloc(TIFF *tif, |
| 1203 | uint64_t offset, |
| 1204 | tmsize_t size, |
| 1205 | void **pdest) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1206 | { |
| 1207 | #if SIZEOF_SIZE_T == 8 |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1208 | tmsize_t threshold = INITIAL_THRESHOLD; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1209 | #endif |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1210 | tmsize_t already_read = 0; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1211 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1212 | assert(!isMapped(tif)); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1213 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1214 | if (!SeekOK(tif, offset)) |
| 1215 | return (TIFFReadDirEntryErrIo); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1216 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1217 | /* On 64 bit processes, read first a maximum of 1 MB, then 10 MB, etc */ |
| 1218 | /* so as to avoid allocating too much memory in case the file is too */ |
| 1219 | /* short. We could ask for the file size, but this might be */ |
| 1220 | /* expensive with some I/O layers (think of reading a gzipped file) */ |
| 1221 | /* Restrict to 64 bit processes, so as to avoid reallocs() */ |
| 1222 | /* on 32 bit processes where virtual memory is scarce. */ |
| 1223 | while (already_read < size) |
| 1224 | { |
| 1225 | void *new_dest; |
| 1226 | tmsize_t bytes_read; |
| 1227 | tmsize_t to_read = size - already_read; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1228 | #if SIZEOF_SIZE_T == 8 |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1229 | if (to_read >= threshold && threshold < MAX_THRESHOLD) |
| 1230 | { |
| 1231 | to_read = threshold; |
| 1232 | threshold *= THRESHOLD_MULTIPLIER; |
| 1233 | } |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1234 | #endif |
| 1235 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1236 | new_dest = |
| 1237 | (uint8_t *)_TIFFreallocExt(tif, *pdest, already_read + to_read); |
| 1238 | if (new_dest == NULL) |
| 1239 | { |
| 1240 | TIFFErrorExtR(tif, tif->tif_name, |
| 1241 | "Failed to allocate memory for %s " |
| 1242 | "(%" TIFF_SSIZE_FORMAT |
| 1243 | " elements of %" TIFF_SSIZE_FORMAT " bytes each)", |
| 1244 | "TIFFReadDirEntryArray", (tmsize_t)1, |
| 1245 | already_read + to_read); |
| 1246 | return TIFFReadDirEntryErrAlloc; |
| 1247 | } |
| 1248 | *pdest = new_dest; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1249 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1250 | bytes_read = TIFFReadFile(tif, (char *)*pdest + already_read, to_read); |
| 1251 | already_read += bytes_read; |
| 1252 | if (bytes_read != to_read) |
| 1253 | { |
| 1254 | return TIFFReadDirEntryErrIo; |
| 1255 | } |
| 1256 | } |
| 1257 | return TIFFReadDirEntryErrOk; |
| 1258 | } |
| 1259 | |
| 1260 | /* Caution: if raising that value, make sure int32 / uint32 overflows can't |
| 1261 | * occur elsewhere */ |
| 1262 | #define MAX_SIZE_TAG_DATA 2147483647U |
| 1263 | |
| 1264 | static enum TIFFReadDirEntryErr |
| 1265 | TIFFReadDirEntryArrayWithLimit(TIFF *tif, TIFFDirEntry *direntry, |
| 1266 | uint32_t *count, uint32_t desttypesize, |
| 1267 | void **value, uint64_t maxcount) |
| 1268 | { |
| 1269 | int typesize; |
| 1270 | uint32_t datasize; |
| 1271 | void *data; |
| 1272 | uint64_t target_count64; |
| 1273 | int original_datasize_clamped; |
| 1274 | typesize = TIFFDataWidth(direntry->tdir_type); |
| 1275 | |
| 1276 | target_count64 = |
| 1277 | (direntry->tdir_count > maxcount) ? maxcount : direntry->tdir_count; |
| 1278 | |
| 1279 | if ((target_count64 == 0) || (typesize == 0)) |
| 1280 | { |
| 1281 | *value = 0; |
| 1282 | return (TIFFReadDirEntryErrOk); |
| 1283 | } |
| 1284 | (void)desttypesize; |
| 1285 | |
| 1286 | /* We just want to know if the original tag size is more than 4 bytes |
| 1287 | * (classic TIFF) or 8 bytes (BigTIFF) |
| 1288 | */ |
| 1289 | original_datasize_clamped = |
| 1290 | ((direntry->tdir_count > 10) ? 10 : (int)direntry->tdir_count) * |
| 1291 | typesize; |
| 1292 | |
| 1293 | /* |
| 1294 | * As a sanity check, make sure we have no more than a 2GB tag array |
| 1295 | * in either the current data type or the dest data type. This also |
| 1296 | * avoids problems with overflow of tmsize_t on 32bit systems. |
| 1297 | */ |
| 1298 | if ((uint64_t)(MAX_SIZE_TAG_DATA / typesize) < target_count64) |
| 1299 | return (TIFFReadDirEntryErrSizesan); |
| 1300 | if ((uint64_t)(MAX_SIZE_TAG_DATA / desttypesize) < target_count64) |
| 1301 | return (TIFFReadDirEntryErrSizesan); |
| 1302 | |
| 1303 | *count = (uint32_t)target_count64; |
| 1304 | datasize = (*count) * typesize; |
| 1305 | assert((tmsize_t)datasize > 0); |
| 1306 | |
| 1307 | if (isMapped(tif) && datasize > (uint64_t)tif->tif_size) |
| 1308 | return TIFFReadDirEntryErrIo; |
| 1309 | |
| 1310 | if (!isMapped(tif) && (((tif->tif_flags & TIFF_BIGTIFF) && datasize > 8) || |
| 1311 | (!(tif->tif_flags & TIFF_BIGTIFF) && datasize > 4))) |
| 1312 | { |
| 1313 | data = NULL; |
| 1314 | } |
| 1315 | else |
| 1316 | { |
| 1317 | data = _TIFFCheckMalloc(tif, *count, typesize, "ReadDirEntryArray"); |
| 1318 | if (data == 0) |
| 1319 | return (TIFFReadDirEntryErrAlloc); |
| 1320 | } |
| 1321 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 1322 | { |
| 1323 | /* Only the condition on original_datasize_clamped. The second |
| 1324 | * one is implied, but Coverity Scan cannot see it. */ |
| 1325 | if (original_datasize_clamped <= 4 && datasize <= 4) |
| 1326 | _TIFFmemcpy(data, &direntry->tdir_offset, datasize); |
| 1327 | else |
| 1328 | { |
| 1329 | enum TIFFReadDirEntryErr err; |
| 1330 | uint32_t offset = direntry->tdir_offset.toff_long; |
| 1331 | if (tif->tif_flags & TIFF_SWAB) |
| 1332 | TIFFSwabLong(&offset); |
| 1333 | if (isMapped(tif)) |
| 1334 | err = TIFFReadDirEntryData(tif, (uint64_t)offset, |
| 1335 | (tmsize_t)datasize, data); |
| 1336 | else |
| 1337 | err = TIFFReadDirEntryDataAndRealloc(tif, (uint64_t)offset, |
| 1338 | (tmsize_t)datasize, &data); |
| 1339 | if (err != TIFFReadDirEntryErrOk) |
| 1340 | { |
| 1341 | _TIFFfreeExt(tif, data); |
| 1342 | return (err); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1343 | } |
| 1344 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1345 | } |
| 1346 | else |
| 1347 | { |
| 1348 | /* See above comment for the Classic TIFF case */ |
| 1349 | if (original_datasize_clamped <= 8 && datasize <= 8) |
| 1350 | _TIFFmemcpy(data, &direntry->tdir_offset, datasize); |
| 1351 | else |
| 1352 | { |
| 1353 | enum TIFFReadDirEntryErr err; |
| 1354 | uint64_t offset = direntry->tdir_offset.toff_long8; |
| 1355 | if (tif->tif_flags & TIFF_SWAB) |
| 1356 | TIFFSwabLong8(&offset); |
| 1357 | if (isMapped(tif)) |
| 1358 | err = TIFFReadDirEntryData(tif, (uint64_t)offset, |
| 1359 | (tmsize_t)datasize, data); |
| 1360 | else |
| 1361 | err = TIFFReadDirEntryDataAndRealloc(tif, (uint64_t)offset, |
| 1362 | (tmsize_t)datasize, &data); |
| 1363 | if (err != TIFFReadDirEntryErrOk) |
| 1364 | { |
| 1365 | _TIFFfreeExt(tif, data); |
| 1366 | return (err); |
| 1367 | } |
| 1368 | } |
| 1369 | } |
| 1370 | *value = data; |
| 1371 | return (TIFFReadDirEntryErrOk); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1372 | } |
| 1373 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1374 | static enum TIFFReadDirEntryErr |
| 1375 | TIFFReadDirEntryArray(TIFF *tif, TIFFDirEntry *direntry, uint32_t *count, |
| 1376 | uint32_t desttypesize, void **value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1377 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1378 | return TIFFReadDirEntryArrayWithLimit(tif, direntry, count, desttypesize, |
| 1379 | value, ~((uint64_t)0)); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1380 | } |
| 1381 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1382 | static enum TIFFReadDirEntryErr |
| 1383 | TIFFReadDirEntryByteArray(TIFF *tif, TIFFDirEntry *direntry, uint8_t **value) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1384 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1385 | enum TIFFReadDirEntryErr err; |
| 1386 | uint32_t count; |
| 1387 | void *origdata; |
| 1388 | uint8_t *data; |
| 1389 | switch (direntry->tdir_type) |
| 1390 | { |
| 1391 | case TIFF_ASCII: |
| 1392 | case TIFF_UNDEFINED: |
| 1393 | case TIFF_BYTE: |
| 1394 | case TIFF_SBYTE: |
| 1395 | case TIFF_SHORT: |
| 1396 | case TIFF_SSHORT: |
| 1397 | case TIFF_LONG: |
| 1398 | case TIFF_SLONG: |
| 1399 | case TIFF_LONG8: |
| 1400 | case TIFF_SLONG8: |
| 1401 | break; |
| 1402 | default: |
| 1403 | return (TIFFReadDirEntryErrType); |
| 1404 | } |
| 1405 | err = TIFFReadDirEntryArray(tif, direntry, &count, 1, &origdata); |
| 1406 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 1407 | { |
| 1408 | *value = 0; |
| 1409 | return (err); |
| 1410 | } |
| 1411 | switch (direntry->tdir_type) |
| 1412 | { |
| 1413 | case TIFF_ASCII: |
| 1414 | case TIFF_UNDEFINED: |
| 1415 | case TIFF_BYTE: |
| 1416 | *value = (uint8_t *)origdata; |
| 1417 | return (TIFFReadDirEntryErrOk); |
| 1418 | case TIFF_SBYTE: |
| 1419 | { |
| 1420 | int8_t *m; |
| 1421 | uint32_t n; |
| 1422 | m = (int8_t *)origdata; |
| 1423 | for (n = 0; n < count; n++) |
| 1424 | { |
| 1425 | err = TIFFReadDirEntryCheckRangeByteSbyte(*m); |
| 1426 | if (err != TIFFReadDirEntryErrOk) |
| 1427 | { |
| 1428 | _TIFFfreeExt(tif, origdata); |
| 1429 | return (err); |
| 1430 | } |
| 1431 | m++; |
| 1432 | } |
| 1433 | *value = (uint8_t *)origdata; |
| 1434 | return (TIFFReadDirEntryErrOk); |
| 1435 | } |
| 1436 | } |
| 1437 | data = (uint8_t *)_TIFFmallocExt(tif, count); |
| 1438 | if (data == 0) |
| 1439 | { |
| 1440 | _TIFFfreeExt(tif, origdata); |
| 1441 | return (TIFFReadDirEntryErrAlloc); |
| 1442 | } |
| 1443 | switch (direntry->tdir_type) |
| 1444 | { |
| 1445 | case TIFF_SHORT: |
| 1446 | { |
| 1447 | uint16_t *ma; |
| 1448 | uint8_t *mb; |
| 1449 | uint32_t n; |
| 1450 | ma = (uint16_t *)origdata; |
| 1451 | mb = data; |
| 1452 | for (n = 0; n < count; n++) |
| 1453 | { |
| 1454 | if (tif->tif_flags & TIFF_SWAB) |
| 1455 | TIFFSwabShort(ma); |
| 1456 | err = TIFFReadDirEntryCheckRangeByteShort(*ma); |
| 1457 | if (err != TIFFReadDirEntryErrOk) |
| 1458 | break; |
| 1459 | *mb++ = (uint8_t)(*ma++); |
| 1460 | } |
| 1461 | } |
| 1462 | break; |
| 1463 | case TIFF_SSHORT: |
| 1464 | { |
| 1465 | int16_t *ma; |
| 1466 | uint8_t *mb; |
| 1467 | uint32_t n; |
| 1468 | ma = (int16_t *)origdata; |
| 1469 | mb = data; |
| 1470 | for (n = 0; n < count; n++) |
| 1471 | { |
| 1472 | if (tif->tif_flags & TIFF_SWAB) |
| 1473 | TIFFSwabShort((uint16_t *)ma); |
| 1474 | err = TIFFReadDirEntryCheckRangeByteSshort(*ma); |
| 1475 | if (err != TIFFReadDirEntryErrOk) |
| 1476 | break; |
| 1477 | *mb++ = (uint8_t)(*ma++); |
| 1478 | } |
| 1479 | } |
| 1480 | break; |
| 1481 | case TIFF_LONG: |
| 1482 | { |
| 1483 | uint32_t *ma; |
| 1484 | uint8_t *mb; |
| 1485 | uint32_t n; |
| 1486 | ma = (uint32_t *)origdata; |
| 1487 | mb = data; |
| 1488 | for (n = 0; n < count; n++) |
| 1489 | { |
| 1490 | if (tif->tif_flags & TIFF_SWAB) |
| 1491 | TIFFSwabLong(ma); |
| 1492 | err = TIFFReadDirEntryCheckRangeByteLong(*ma); |
| 1493 | if (err != TIFFReadDirEntryErrOk) |
| 1494 | break; |
| 1495 | *mb++ = (uint8_t)(*ma++); |
| 1496 | } |
| 1497 | } |
| 1498 | break; |
| 1499 | case TIFF_SLONG: |
| 1500 | { |
| 1501 | int32_t *ma; |
| 1502 | uint8_t *mb; |
| 1503 | uint32_t n; |
| 1504 | ma = (int32_t *)origdata; |
| 1505 | mb = data; |
| 1506 | for (n = 0; n < count; n++) |
| 1507 | { |
| 1508 | if (tif->tif_flags & TIFF_SWAB) |
| 1509 | TIFFSwabLong((uint32_t *)ma); |
| 1510 | err = TIFFReadDirEntryCheckRangeByteSlong(*ma); |
| 1511 | if (err != TIFFReadDirEntryErrOk) |
| 1512 | break; |
| 1513 | *mb++ = (uint8_t)(*ma++); |
| 1514 | } |
| 1515 | } |
| 1516 | break; |
| 1517 | case TIFF_LONG8: |
| 1518 | { |
| 1519 | uint64_t *ma; |
| 1520 | uint8_t *mb; |
| 1521 | uint32_t n; |
| 1522 | ma = (uint64_t *)origdata; |
| 1523 | mb = data; |
| 1524 | for (n = 0; n < count; n++) |
| 1525 | { |
| 1526 | if (tif->tif_flags & TIFF_SWAB) |
| 1527 | TIFFSwabLong8(ma); |
| 1528 | err = TIFFReadDirEntryCheckRangeByteLong8(*ma); |
| 1529 | if (err != TIFFReadDirEntryErrOk) |
| 1530 | break; |
| 1531 | *mb++ = (uint8_t)(*ma++); |
| 1532 | } |
| 1533 | } |
| 1534 | break; |
| 1535 | case TIFF_SLONG8: |
| 1536 | { |
| 1537 | int64_t *ma; |
| 1538 | uint8_t *mb; |
| 1539 | uint32_t n; |
| 1540 | ma = (int64_t *)origdata; |
| 1541 | mb = data; |
| 1542 | for (n = 0; n < count; n++) |
| 1543 | { |
| 1544 | if (tif->tif_flags & TIFF_SWAB) |
| 1545 | TIFFSwabLong8((uint64_t *)ma); |
| 1546 | err = TIFFReadDirEntryCheckRangeByteSlong8(*ma); |
| 1547 | if (err != TIFFReadDirEntryErrOk) |
| 1548 | break; |
| 1549 | *mb++ = (uint8_t)(*ma++); |
| 1550 | } |
| 1551 | } |
| 1552 | break; |
| 1553 | } |
| 1554 | _TIFFfreeExt(tif, origdata); |
| 1555 | if (err != TIFFReadDirEntryErrOk) |
| 1556 | { |
| 1557 | _TIFFfreeExt(tif, data); |
| 1558 | return (err); |
| 1559 | } |
| 1560 | *value = data; |
| 1561 | return (TIFFReadDirEntryErrOk); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 1562 | } |
| 1563 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1564 | static enum TIFFReadDirEntryErr |
| 1565 | TIFFReadDirEntrySbyteArray(TIFF *tif, TIFFDirEntry *direntry, int8_t **value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1566 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1567 | enum TIFFReadDirEntryErr err; |
| 1568 | uint32_t count; |
| 1569 | void *origdata; |
| 1570 | int8_t *data; |
| 1571 | switch (direntry->tdir_type) |
| 1572 | { |
| 1573 | case TIFF_UNDEFINED: |
| 1574 | case TIFF_BYTE: |
| 1575 | case TIFF_SBYTE: |
| 1576 | case TIFF_SHORT: |
| 1577 | case TIFF_SSHORT: |
| 1578 | case TIFF_LONG: |
| 1579 | case TIFF_SLONG: |
| 1580 | case TIFF_LONG8: |
| 1581 | case TIFF_SLONG8: |
| 1582 | break; |
| 1583 | default: |
| 1584 | return (TIFFReadDirEntryErrType); |
| 1585 | } |
| 1586 | err = TIFFReadDirEntryArray(tif, direntry, &count, 1, &origdata); |
| 1587 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 1588 | { |
| 1589 | *value = 0; |
| 1590 | return (err); |
| 1591 | } |
| 1592 | switch (direntry->tdir_type) |
| 1593 | { |
| 1594 | case TIFF_UNDEFINED: |
| 1595 | case TIFF_BYTE: |
| 1596 | { |
| 1597 | uint8_t *m; |
| 1598 | uint32_t n; |
| 1599 | m = (uint8_t *)origdata; |
| 1600 | for (n = 0; n < count; n++) |
| 1601 | { |
| 1602 | err = TIFFReadDirEntryCheckRangeSbyteByte(*m); |
| 1603 | if (err != TIFFReadDirEntryErrOk) |
| 1604 | { |
| 1605 | _TIFFfreeExt(tif, origdata); |
| 1606 | return (err); |
| 1607 | } |
| 1608 | m++; |
| 1609 | } |
| 1610 | *value = (int8_t *)origdata; |
| 1611 | return (TIFFReadDirEntryErrOk); |
| 1612 | } |
| 1613 | case TIFF_SBYTE: |
| 1614 | *value = (int8_t *)origdata; |
| 1615 | return (TIFFReadDirEntryErrOk); |
| 1616 | } |
| 1617 | data = (int8_t *)_TIFFmallocExt(tif, count); |
| 1618 | if (data == 0) |
| 1619 | { |
| 1620 | _TIFFfreeExt(tif, origdata); |
| 1621 | return (TIFFReadDirEntryErrAlloc); |
| 1622 | } |
| 1623 | switch (direntry->tdir_type) |
| 1624 | { |
| 1625 | case TIFF_SHORT: |
| 1626 | { |
| 1627 | uint16_t *ma; |
| 1628 | int8_t *mb; |
| 1629 | uint32_t n; |
| 1630 | ma = (uint16_t *)origdata; |
| 1631 | mb = data; |
| 1632 | for (n = 0; n < count; n++) |
| 1633 | { |
| 1634 | if (tif->tif_flags & TIFF_SWAB) |
| 1635 | TIFFSwabShort(ma); |
| 1636 | err = TIFFReadDirEntryCheckRangeSbyteShort(*ma); |
| 1637 | if (err != TIFFReadDirEntryErrOk) |
| 1638 | break; |
| 1639 | *mb++ = (int8_t)(*ma++); |
| 1640 | } |
| 1641 | } |
| 1642 | break; |
| 1643 | case TIFF_SSHORT: |
| 1644 | { |
| 1645 | int16_t *ma; |
| 1646 | int8_t *mb; |
| 1647 | uint32_t n; |
| 1648 | ma = (int16_t *)origdata; |
| 1649 | mb = data; |
| 1650 | for (n = 0; n < count; n++) |
| 1651 | { |
| 1652 | if (tif->tif_flags & TIFF_SWAB) |
| 1653 | TIFFSwabShort((uint16_t *)ma); |
| 1654 | err = TIFFReadDirEntryCheckRangeSbyteSshort(*ma); |
| 1655 | if (err != TIFFReadDirEntryErrOk) |
| 1656 | break; |
| 1657 | *mb++ = (int8_t)(*ma++); |
| 1658 | } |
| 1659 | } |
| 1660 | break; |
| 1661 | case TIFF_LONG: |
| 1662 | { |
| 1663 | uint32_t *ma; |
| 1664 | int8_t *mb; |
| 1665 | uint32_t n; |
| 1666 | ma = (uint32_t *)origdata; |
| 1667 | mb = data; |
| 1668 | for (n = 0; n < count; n++) |
| 1669 | { |
| 1670 | if (tif->tif_flags & TIFF_SWAB) |
| 1671 | TIFFSwabLong(ma); |
| 1672 | err = TIFFReadDirEntryCheckRangeSbyteLong(*ma); |
| 1673 | if (err != TIFFReadDirEntryErrOk) |
| 1674 | break; |
| 1675 | *mb++ = (int8_t)(*ma++); |
| 1676 | } |
| 1677 | } |
| 1678 | break; |
| 1679 | case TIFF_SLONG: |
| 1680 | { |
| 1681 | int32_t *ma; |
| 1682 | int8_t *mb; |
| 1683 | uint32_t n; |
| 1684 | ma = (int32_t *)origdata; |
| 1685 | mb = data; |
| 1686 | for (n = 0; n < count; n++) |
| 1687 | { |
| 1688 | if (tif->tif_flags & TIFF_SWAB) |
| 1689 | TIFFSwabLong((uint32_t *)ma); |
| 1690 | err = TIFFReadDirEntryCheckRangeSbyteSlong(*ma); |
| 1691 | if (err != TIFFReadDirEntryErrOk) |
| 1692 | break; |
| 1693 | *mb++ = (int8_t)(*ma++); |
| 1694 | } |
| 1695 | } |
| 1696 | break; |
| 1697 | case TIFF_LONG8: |
| 1698 | { |
| 1699 | uint64_t *ma; |
| 1700 | int8_t *mb; |
| 1701 | uint32_t n; |
| 1702 | ma = (uint64_t *)origdata; |
| 1703 | mb = data; |
| 1704 | for (n = 0; n < count; n++) |
| 1705 | { |
| 1706 | if (tif->tif_flags & TIFF_SWAB) |
| 1707 | TIFFSwabLong8(ma); |
| 1708 | err = TIFFReadDirEntryCheckRangeSbyteLong8(*ma); |
| 1709 | if (err != TIFFReadDirEntryErrOk) |
| 1710 | break; |
| 1711 | *mb++ = (int8_t)(*ma++); |
| 1712 | } |
| 1713 | } |
| 1714 | break; |
| 1715 | case TIFF_SLONG8: |
| 1716 | { |
| 1717 | int64_t *ma; |
| 1718 | int8_t *mb; |
| 1719 | uint32_t n; |
| 1720 | ma = (int64_t *)origdata; |
| 1721 | mb = data; |
| 1722 | for (n = 0; n < count; n++) |
| 1723 | { |
| 1724 | if (tif->tif_flags & TIFF_SWAB) |
| 1725 | TIFFSwabLong8((uint64_t *)ma); |
| 1726 | err = TIFFReadDirEntryCheckRangeSbyteSlong8(*ma); |
| 1727 | if (err != TIFFReadDirEntryErrOk) |
| 1728 | break; |
| 1729 | *mb++ = (int8_t)(*ma++); |
| 1730 | } |
| 1731 | } |
| 1732 | break; |
| 1733 | } |
| 1734 | _TIFFfreeExt(tif, origdata); |
| 1735 | if (err != TIFFReadDirEntryErrOk) |
| 1736 | { |
| 1737 | _TIFFfreeExt(tif, data); |
| 1738 | return (err); |
| 1739 | } |
| 1740 | *value = data; |
| 1741 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1742 | } |
| 1743 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1744 | static enum TIFFReadDirEntryErr |
| 1745 | TIFFReadDirEntryShortArray(TIFF *tif, TIFFDirEntry *direntry, uint16_t **value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1746 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1747 | enum TIFFReadDirEntryErr err; |
| 1748 | uint32_t count; |
| 1749 | void *origdata; |
| 1750 | uint16_t *data; |
| 1751 | switch (direntry->tdir_type) |
| 1752 | { |
| 1753 | case TIFF_BYTE: |
| 1754 | case TIFF_SBYTE: |
| 1755 | case TIFF_SHORT: |
| 1756 | case TIFF_SSHORT: |
| 1757 | case TIFF_LONG: |
| 1758 | case TIFF_SLONG: |
| 1759 | case TIFF_LONG8: |
| 1760 | case TIFF_SLONG8: |
| 1761 | break; |
| 1762 | default: |
| 1763 | return (TIFFReadDirEntryErrType); |
| 1764 | } |
| 1765 | err = TIFFReadDirEntryArray(tif, direntry, &count, 2, &origdata); |
| 1766 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 1767 | { |
| 1768 | *value = 0; |
| 1769 | return (err); |
| 1770 | } |
| 1771 | switch (direntry->tdir_type) |
| 1772 | { |
| 1773 | case TIFF_SHORT: |
| 1774 | *value = (uint16_t *)origdata; |
| 1775 | if (tif->tif_flags & TIFF_SWAB) |
| 1776 | TIFFSwabArrayOfShort(*value, count); |
| 1777 | return (TIFFReadDirEntryErrOk); |
| 1778 | case TIFF_SSHORT: |
| 1779 | { |
| 1780 | int16_t *m; |
| 1781 | uint32_t n; |
| 1782 | m = (int16_t *)origdata; |
| 1783 | for (n = 0; n < count; n++) |
| 1784 | { |
| 1785 | if (tif->tif_flags & TIFF_SWAB) |
| 1786 | TIFFSwabShort((uint16_t *)m); |
| 1787 | err = TIFFReadDirEntryCheckRangeShortSshort(*m); |
| 1788 | if (err != TIFFReadDirEntryErrOk) |
| 1789 | { |
| 1790 | _TIFFfreeExt(tif, origdata); |
| 1791 | return (err); |
| 1792 | } |
| 1793 | m++; |
| 1794 | } |
| 1795 | *value = (uint16_t *)origdata; |
| 1796 | return (TIFFReadDirEntryErrOk); |
| 1797 | } |
| 1798 | } |
| 1799 | data = (uint16_t *)_TIFFmallocExt(tif, count * 2); |
| 1800 | if (data == 0) |
| 1801 | { |
| 1802 | _TIFFfreeExt(tif, origdata); |
| 1803 | return (TIFFReadDirEntryErrAlloc); |
| 1804 | } |
| 1805 | switch (direntry->tdir_type) |
| 1806 | { |
| 1807 | case TIFF_BYTE: |
| 1808 | { |
| 1809 | uint8_t *ma; |
| 1810 | uint16_t *mb; |
| 1811 | uint32_t n; |
| 1812 | ma = (uint8_t *)origdata; |
| 1813 | mb = data; |
| 1814 | for (n = 0; n < count; n++) |
| 1815 | *mb++ = (uint16_t)(*ma++); |
| 1816 | } |
| 1817 | break; |
| 1818 | case TIFF_SBYTE: |
| 1819 | { |
| 1820 | int8_t *ma; |
| 1821 | uint16_t *mb; |
| 1822 | uint32_t n; |
| 1823 | ma = (int8_t *)origdata; |
| 1824 | mb = data; |
| 1825 | for (n = 0; n < count; n++) |
| 1826 | { |
| 1827 | err = TIFFReadDirEntryCheckRangeShortSbyte(*ma); |
| 1828 | if (err != TIFFReadDirEntryErrOk) |
| 1829 | break; |
| 1830 | *mb++ = (uint16_t)(*ma++); |
| 1831 | } |
| 1832 | } |
| 1833 | break; |
| 1834 | case TIFF_LONG: |
| 1835 | { |
| 1836 | uint32_t *ma; |
| 1837 | uint16_t *mb; |
| 1838 | uint32_t n; |
| 1839 | ma = (uint32_t *)origdata; |
| 1840 | mb = data; |
| 1841 | for (n = 0; n < count; n++) |
| 1842 | { |
| 1843 | if (tif->tif_flags & TIFF_SWAB) |
| 1844 | TIFFSwabLong(ma); |
| 1845 | err = TIFFReadDirEntryCheckRangeShortLong(*ma); |
| 1846 | if (err != TIFFReadDirEntryErrOk) |
| 1847 | break; |
| 1848 | *mb++ = (uint16_t)(*ma++); |
| 1849 | } |
| 1850 | } |
| 1851 | break; |
| 1852 | case TIFF_SLONG: |
| 1853 | { |
| 1854 | int32_t *ma; |
| 1855 | uint16_t *mb; |
| 1856 | uint32_t n; |
| 1857 | ma = (int32_t *)origdata; |
| 1858 | mb = data; |
| 1859 | for (n = 0; n < count; n++) |
| 1860 | { |
| 1861 | if (tif->tif_flags & TIFF_SWAB) |
| 1862 | TIFFSwabLong((uint32_t *)ma); |
| 1863 | err = TIFFReadDirEntryCheckRangeShortSlong(*ma); |
| 1864 | if (err != TIFFReadDirEntryErrOk) |
| 1865 | break; |
| 1866 | *mb++ = (uint16_t)(*ma++); |
| 1867 | } |
| 1868 | } |
| 1869 | break; |
| 1870 | case TIFF_LONG8: |
| 1871 | { |
| 1872 | uint64_t *ma; |
| 1873 | uint16_t *mb; |
| 1874 | uint32_t n; |
| 1875 | ma = (uint64_t *)origdata; |
| 1876 | mb = data; |
| 1877 | for (n = 0; n < count; n++) |
| 1878 | { |
| 1879 | if (tif->tif_flags & TIFF_SWAB) |
| 1880 | TIFFSwabLong8(ma); |
| 1881 | err = TIFFReadDirEntryCheckRangeShortLong8(*ma); |
| 1882 | if (err != TIFFReadDirEntryErrOk) |
| 1883 | break; |
| 1884 | *mb++ = (uint16_t)(*ma++); |
| 1885 | } |
| 1886 | } |
| 1887 | break; |
| 1888 | case TIFF_SLONG8: |
| 1889 | { |
| 1890 | int64_t *ma; |
| 1891 | uint16_t *mb; |
| 1892 | uint32_t n; |
| 1893 | ma = (int64_t *)origdata; |
| 1894 | mb = data; |
| 1895 | for (n = 0; n < count; n++) |
| 1896 | { |
| 1897 | if (tif->tif_flags & TIFF_SWAB) |
| 1898 | TIFFSwabLong8((uint64_t *)ma); |
| 1899 | err = TIFFReadDirEntryCheckRangeShortSlong8(*ma); |
| 1900 | if (err != TIFFReadDirEntryErrOk) |
| 1901 | break; |
| 1902 | *mb++ = (uint16_t)(*ma++); |
| 1903 | } |
| 1904 | } |
| 1905 | break; |
| 1906 | } |
| 1907 | _TIFFfreeExt(tif, origdata); |
| 1908 | if (err != TIFFReadDirEntryErrOk) |
| 1909 | { |
| 1910 | _TIFFfreeExt(tif, data); |
| 1911 | return (err); |
| 1912 | } |
| 1913 | *value = data; |
| 1914 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1915 | } |
| 1916 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1917 | static enum TIFFReadDirEntryErr |
| 1918 | TIFFReadDirEntrySshortArray(TIFF *tif, TIFFDirEntry *direntry, int16_t **value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 1919 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 1920 | enum TIFFReadDirEntryErr err; |
| 1921 | uint32_t count; |
| 1922 | void *origdata; |
| 1923 | int16_t *data; |
| 1924 | switch (direntry->tdir_type) |
| 1925 | { |
| 1926 | case TIFF_BYTE: |
| 1927 | case TIFF_SBYTE: |
| 1928 | case TIFF_SHORT: |
| 1929 | case TIFF_SSHORT: |
| 1930 | case TIFF_LONG: |
| 1931 | case TIFF_SLONG: |
| 1932 | case TIFF_LONG8: |
| 1933 | case TIFF_SLONG8: |
| 1934 | break; |
| 1935 | default: |
| 1936 | return (TIFFReadDirEntryErrType); |
| 1937 | } |
| 1938 | err = TIFFReadDirEntryArray(tif, direntry, &count, 2, &origdata); |
| 1939 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 1940 | { |
| 1941 | *value = 0; |
| 1942 | return (err); |
| 1943 | } |
| 1944 | switch (direntry->tdir_type) |
| 1945 | { |
| 1946 | case TIFF_SHORT: |
| 1947 | { |
| 1948 | uint16_t *m; |
| 1949 | uint32_t n; |
| 1950 | m = (uint16_t *)origdata; |
| 1951 | for (n = 0; n < count; n++) |
| 1952 | { |
| 1953 | if (tif->tif_flags & TIFF_SWAB) |
| 1954 | TIFFSwabShort(m); |
| 1955 | err = TIFFReadDirEntryCheckRangeSshortShort(*m); |
| 1956 | if (err != TIFFReadDirEntryErrOk) |
| 1957 | { |
| 1958 | _TIFFfreeExt(tif, origdata); |
| 1959 | return (err); |
| 1960 | } |
| 1961 | m++; |
| 1962 | } |
| 1963 | *value = (int16_t *)origdata; |
| 1964 | return (TIFFReadDirEntryErrOk); |
| 1965 | } |
| 1966 | case TIFF_SSHORT: |
| 1967 | *value = (int16_t *)origdata; |
| 1968 | if (tif->tif_flags & TIFF_SWAB) |
| 1969 | TIFFSwabArrayOfShort((uint16_t *)(*value), count); |
| 1970 | return (TIFFReadDirEntryErrOk); |
| 1971 | } |
| 1972 | data = (int16_t *)_TIFFmallocExt(tif, count * 2); |
| 1973 | if (data == 0) |
| 1974 | { |
| 1975 | _TIFFfreeExt(tif, origdata); |
| 1976 | return (TIFFReadDirEntryErrAlloc); |
| 1977 | } |
| 1978 | switch (direntry->tdir_type) |
| 1979 | { |
| 1980 | case TIFF_BYTE: |
| 1981 | { |
| 1982 | uint8_t *ma; |
| 1983 | int16_t *mb; |
| 1984 | uint32_t n; |
| 1985 | ma = (uint8_t *)origdata; |
| 1986 | mb = data; |
| 1987 | for (n = 0; n < count; n++) |
| 1988 | *mb++ = (int16_t)(*ma++); |
| 1989 | } |
| 1990 | break; |
| 1991 | case TIFF_SBYTE: |
| 1992 | { |
| 1993 | int8_t *ma; |
| 1994 | int16_t *mb; |
| 1995 | uint32_t n; |
| 1996 | ma = (int8_t *)origdata; |
| 1997 | mb = data; |
| 1998 | for (n = 0; n < count; n++) |
| 1999 | *mb++ = (int16_t)(*ma++); |
| 2000 | } |
| 2001 | break; |
| 2002 | case TIFF_LONG: |
| 2003 | { |
| 2004 | uint32_t *ma; |
| 2005 | int16_t *mb; |
| 2006 | uint32_t n; |
| 2007 | ma = (uint32_t *)origdata; |
| 2008 | mb = data; |
| 2009 | for (n = 0; n < count; n++) |
| 2010 | { |
| 2011 | if (tif->tif_flags & TIFF_SWAB) |
| 2012 | TIFFSwabLong(ma); |
| 2013 | err = TIFFReadDirEntryCheckRangeSshortLong(*ma); |
| 2014 | if (err != TIFFReadDirEntryErrOk) |
| 2015 | break; |
| 2016 | *mb++ = (int16_t)(*ma++); |
| 2017 | } |
| 2018 | } |
| 2019 | break; |
| 2020 | case TIFF_SLONG: |
| 2021 | { |
| 2022 | int32_t *ma; |
| 2023 | int16_t *mb; |
| 2024 | uint32_t n; |
| 2025 | ma = (int32_t *)origdata; |
| 2026 | mb = data; |
| 2027 | for (n = 0; n < count; n++) |
| 2028 | { |
| 2029 | if (tif->tif_flags & TIFF_SWAB) |
| 2030 | TIFFSwabLong((uint32_t *)ma); |
| 2031 | err = TIFFReadDirEntryCheckRangeSshortSlong(*ma); |
| 2032 | if (err != TIFFReadDirEntryErrOk) |
| 2033 | break; |
| 2034 | *mb++ = (int16_t)(*ma++); |
| 2035 | } |
| 2036 | } |
| 2037 | break; |
| 2038 | case TIFF_LONG8: |
| 2039 | { |
| 2040 | uint64_t *ma; |
| 2041 | int16_t *mb; |
| 2042 | uint32_t n; |
| 2043 | ma = (uint64_t *)origdata; |
| 2044 | mb = data; |
| 2045 | for (n = 0; n < count; n++) |
| 2046 | { |
| 2047 | if (tif->tif_flags & TIFF_SWAB) |
| 2048 | TIFFSwabLong8(ma); |
| 2049 | err = TIFFReadDirEntryCheckRangeSshortLong8(*ma); |
| 2050 | if (err != TIFFReadDirEntryErrOk) |
| 2051 | break; |
| 2052 | *mb++ = (int16_t)(*ma++); |
| 2053 | } |
| 2054 | } |
| 2055 | break; |
| 2056 | case TIFF_SLONG8: |
| 2057 | { |
| 2058 | int64_t *ma; |
| 2059 | int16_t *mb; |
| 2060 | uint32_t n; |
| 2061 | ma = (int64_t *)origdata; |
| 2062 | mb = data; |
| 2063 | for (n = 0; n < count; n++) |
| 2064 | { |
| 2065 | if (tif->tif_flags & TIFF_SWAB) |
| 2066 | TIFFSwabLong8((uint64_t *)ma); |
| 2067 | err = TIFFReadDirEntryCheckRangeSshortSlong8(*ma); |
| 2068 | if (err != TIFFReadDirEntryErrOk) |
| 2069 | break; |
| 2070 | *mb++ = (int16_t)(*ma++); |
| 2071 | } |
| 2072 | } |
| 2073 | break; |
| 2074 | } |
| 2075 | _TIFFfreeExt(tif, origdata); |
| 2076 | if (err != TIFFReadDirEntryErrOk) |
| 2077 | { |
| 2078 | _TIFFfreeExt(tif, data); |
| 2079 | return (err); |
| 2080 | } |
| 2081 | *value = data; |
| 2082 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2083 | } |
| 2084 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2085 | static enum TIFFReadDirEntryErr |
| 2086 | TIFFReadDirEntryLongArray(TIFF *tif, TIFFDirEntry *direntry, uint32_t **value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2087 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2088 | enum TIFFReadDirEntryErr err; |
| 2089 | uint32_t count; |
| 2090 | void *origdata; |
| 2091 | uint32_t *data; |
| 2092 | switch (direntry->tdir_type) |
| 2093 | { |
| 2094 | case TIFF_BYTE: |
| 2095 | case TIFF_SBYTE: |
| 2096 | case TIFF_SHORT: |
| 2097 | case TIFF_SSHORT: |
| 2098 | case TIFF_LONG: |
| 2099 | case TIFF_SLONG: |
| 2100 | case TIFF_LONG8: |
| 2101 | case TIFF_SLONG8: |
| 2102 | break; |
| 2103 | default: |
| 2104 | return (TIFFReadDirEntryErrType); |
| 2105 | } |
| 2106 | err = TIFFReadDirEntryArray(tif, direntry, &count, 4, &origdata); |
| 2107 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 2108 | { |
| 2109 | *value = 0; |
| 2110 | return (err); |
| 2111 | } |
| 2112 | switch (direntry->tdir_type) |
| 2113 | { |
| 2114 | case TIFF_LONG: |
| 2115 | *value = (uint32_t *)origdata; |
| 2116 | if (tif->tif_flags & TIFF_SWAB) |
| 2117 | TIFFSwabArrayOfLong(*value, count); |
| 2118 | return (TIFFReadDirEntryErrOk); |
| 2119 | case TIFF_SLONG: |
| 2120 | { |
| 2121 | int32_t *m; |
| 2122 | uint32_t n; |
| 2123 | m = (int32_t *)origdata; |
| 2124 | for (n = 0; n < count; n++) |
| 2125 | { |
| 2126 | if (tif->tif_flags & TIFF_SWAB) |
| 2127 | TIFFSwabLong((uint32_t *)m); |
| 2128 | err = TIFFReadDirEntryCheckRangeLongSlong(*m); |
| 2129 | if (err != TIFFReadDirEntryErrOk) |
| 2130 | { |
| 2131 | _TIFFfreeExt(tif, origdata); |
| 2132 | return (err); |
| 2133 | } |
| 2134 | m++; |
| 2135 | } |
| 2136 | *value = (uint32_t *)origdata; |
| 2137 | return (TIFFReadDirEntryErrOk); |
| 2138 | } |
| 2139 | } |
| 2140 | data = (uint32_t *)_TIFFmallocExt(tif, count * 4); |
| 2141 | if (data == 0) |
| 2142 | { |
| 2143 | _TIFFfreeExt(tif, origdata); |
| 2144 | return (TIFFReadDirEntryErrAlloc); |
| 2145 | } |
| 2146 | switch (direntry->tdir_type) |
| 2147 | { |
| 2148 | case TIFF_BYTE: |
| 2149 | { |
| 2150 | uint8_t *ma; |
| 2151 | uint32_t *mb; |
| 2152 | uint32_t n; |
| 2153 | ma = (uint8_t *)origdata; |
| 2154 | mb = data; |
| 2155 | for (n = 0; n < count; n++) |
| 2156 | *mb++ = (uint32_t)(*ma++); |
| 2157 | } |
| 2158 | break; |
| 2159 | case TIFF_SBYTE: |
| 2160 | { |
| 2161 | int8_t *ma; |
| 2162 | uint32_t *mb; |
| 2163 | uint32_t n; |
| 2164 | ma = (int8_t *)origdata; |
| 2165 | mb = data; |
| 2166 | for (n = 0; n < count; n++) |
| 2167 | { |
| 2168 | err = TIFFReadDirEntryCheckRangeLongSbyte(*ma); |
| 2169 | if (err != TIFFReadDirEntryErrOk) |
| 2170 | break; |
| 2171 | *mb++ = (uint32_t)(*ma++); |
| 2172 | } |
| 2173 | } |
| 2174 | break; |
| 2175 | case TIFF_SHORT: |
| 2176 | { |
| 2177 | uint16_t *ma; |
| 2178 | uint32_t *mb; |
| 2179 | uint32_t n; |
| 2180 | ma = (uint16_t *)origdata; |
| 2181 | mb = data; |
| 2182 | for (n = 0; n < count; n++) |
| 2183 | { |
| 2184 | if (tif->tif_flags & TIFF_SWAB) |
| 2185 | TIFFSwabShort(ma); |
| 2186 | *mb++ = (uint32_t)(*ma++); |
| 2187 | } |
| 2188 | } |
| 2189 | break; |
| 2190 | case TIFF_SSHORT: |
| 2191 | { |
| 2192 | int16_t *ma; |
| 2193 | uint32_t *mb; |
| 2194 | uint32_t n; |
| 2195 | ma = (int16_t *)origdata; |
| 2196 | mb = data; |
| 2197 | for (n = 0; n < count; n++) |
| 2198 | { |
| 2199 | if (tif->tif_flags & TIFF_SWAB) |
| 2200 | TIFFSwabShort((uint16_t *)ma); |
| 2201 | err = TIFFReadDirEntryCheckRangeLongSshort(*ma); |
| 2202 | if (err != TIFFReadDirEntryErrOk) |
| 2203 | break; |
| 2204 | *mb++ = (uint32_t)(*ma++); |
| 2205 | } |
| 2206 | } |
| 2207 | break; |
| 2208 | case TIFF_LONG8: |
| 2209 | { |
| 2210 | uint64_t *ma; |
| 2211 | uint32_t *mb; |
| 2212 | uint32_t n; |
| 2213 | ma = (uint64_t *)origdata; |
| 2214 | mb = data; |
| 2215 | for (n = 0; n < count; n++) |
| 2216 | { |
| 2217 | if (tif->tif_flags & TIFF_SWAB) |
| 2218 | TIFFSwabLong8(ma); |
| 2219 | err = TIFFReadDirEntryCheckRangeLongLong8(*ma); |
| 2220 | if (err != TIFFReadDirEntryErrOk) |
| 2221 | break; |
| 2222 | *mb++ = (uint32_t)(*ma++); |
| 2223 | } |
| 2224 | } |
| 2225 | break; |
| 2226 | case TIFF_SLONG8: |
| 2227 | { |
| 2228 | int64_t *ma; |
| 2229 | uint32_t *mb; |
| 2230 | uint32_t n; |
| 2231 | ma = (int64_t *)origdata; |
| 2232 | mb = data; |
| 2233 | for (n = 0; n < count; n++) |
| 2234 | { |
| 2235 | if (tif->tif_flags & TIFF_SWAB) |
| 2236 | TIFFSwabLong8((uint64_t *)ma); |
| 2237 | err = TIFFReadDirEntryCheckRangeLongSlong8(*ma); |
| 2238 | if (err != TIFFReadDirEntryErrOk) |
| 2239 | break; |
| 2240 | *mb++ = (uint32_t)(*ma++); |
| 2241 | } |
| 2242 | } |
| 2243 | break; |
| 2244 | } |
| 2245 | _TIFFfreeExt(tif, origdata); |
| 2246 | if (err != TIFFReadDirEntryErrOk) |
| 2247 | { |
| 2248 | _TIFFfreeExt(tif, data); |
| 2249 | return (err); |
| 2250 | } |
| 2251 | *value = data; |
| 2252 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2253 | } |
| 2254 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2255 | static enum TIFFReadDirEntryErr |
| 2256 | TIFFReadDirEntrySlongArray(TIFF *tif, TIFFDirEntry *direntry, int32_t **value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2257 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2258 | enum TIFFReadDirEntryErr err; |
| 2259 | uint32_t count; |
| 2260 | void *origdata; |
| 2261 | int32_t *data; |
| 2262 | switch (direntry->tdir_type) |
| 2263 | { |
| 2264 | case TIFF_BYTE: |
| 2265 | case TIFF_SBYTE: |
| 2266 | case TIFF_SHORT: |
| 2267 | case TIFF_SSHORT: |
| 2268 | case TIFF_LONG: |
| 2269 | case TIFF_SLONG: |
| 2270 | case TIFF_LONG8: |
| 2271 | case TIFF_SLONG8: |
| 2272 | break; |
| 2273 | default: |
| 2274 | return (TIFFReadDirEntryErrType); |
| 2275 | } |
| 2276 | err = TIFFReadDirEntryArray(tif, direntry, &count, 4, &origdata); |
| 2277 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 2278 | { |
| 2279 | *value = 0; |
| 2280 | return (err); |
| 2281 | } |
| 2282 | switch (direntry->tdir_type) |
| 2283 | { |
| 2284 | case TIFF_LONG: |
| 2285 | { |
| 2286 | uint32_t *m; |
| 2287 | uint32_t n; |
| 2288 | m = (uint32_t *)origdata; |
| 2289 | for (n = 0; n < count; n++) |
| 2290 | { |
| 2291 | if (tif->tif_flags & TIFF_SWAB) |
| 2292 | TIFFSwabLong((uint32_t *)m); |
| 2293 | err = TIFFReadDirEntryCheckRangeSlongLong(*m); |
| 2294 | if (err != TIFFReadDirEntryErrOk) |
| 2295 | { |
| 2296 | _TIFFfreeExt(tif, origdata); |
| 2297 | return (err); |
| 2298 | } |
| 2299 | m++; |
| 2300 | } |
| 2301 | *value = (int32_t *)origdata; |
| 2302 | return (TIFFReadDirEntryErrOk); |
| 2303 | } |
| 2304 | case TIFF_SLONG: |
| 2305 | *value = (int32_t *)origdata; |
| 2306 | if (tif->tif_flags & TIFF_SWAB) |
| 2307 | TIFFSwabArrayOfLong((uint32_t *)(*value), count); |
| 2308 | return (TIFFReadDirEntryErrOk); |
| 2309 | } |
| 2310 | data = (int32_t *)_TIFFmallocExt(tif, count * 4); |
| 2311 | if (data == 0) |
| 2312 | { |
| 2313 | _TIFFfreeExt(tif, origdata); |
| 2314 | return (TIFFReadDirEntryErrAlloc); |
| 2315 | } |
| 2316 | switch (direntry->tdir_type) |
| 2317 | { |
| 2318 | case TIFF_BYTE: |
| 2319 | { |
| 2320 | uint8_t *ma; |
| 2321 | int32_t *mb; |
| 2322 | uint32_t n; |
| 2323 | ma = (uint8_t *)origdata; |
| 2324 | mb = data; |
| 2325 | for (n = 0; n < count; n++) |
| 2326 | *mb++ = (int32_t)(*ma++); |
| 2327 | } |
| 2328 | break; |
| 2329 | case TIFF_SBYTE: |
| 2330 | { |
| 2331 | int8_t *ma; |
| 2332 | int32_t *mb; |
| 2333 | uint32_t n; |
| 2334 | ma = (int8_t *)origdata; |
| 2335 | mb = data; |
| 2336 | for (n = 0; n < count; n++) |
| 2337 | *mb++ = (int32_t)(*ma++); |
| 2338 | } |
| 2339 | break; |
| 2340 | case TIFF_SHORT: |
| 2341 | { |
| 2342 | uint16_t *ma; |
| 2343 | int32_t *mb; |
| 2344 | uint32_t n; |
| 2345 | ma = (uint16_t *)origdata; |
| 2346 | mb = data; |
| 2347 | for (n = 0; n < count; n++) |
| 2348 | { |
| 2349 | if (tif->tif_flags & TIFF_SWAB) |
| 2350 | TIFFSwabShort(ma); |
| 2351 | *mb++ = (int32_t)(*ma++); |
| 2352 | } |
| 2353 | } |
| 2354 | break; |
| 2355 | case TIFF_SSHORT: |
| 2356 | { |
| 2357 | int16_t *ma; |
| 2358 | int32_t *mb; |
| 2359 | uint32_t n; |
| 2360 | ma = (int16_t *)origdata; |
| 2361 | mb = data; |
| 2362 | for (n = 0; n < count; n++) |
| 2363 | { |
| 2364 | if (tif->tif_flags & TIFF_SWAB) |
| 2365 | TIFFSwabShort((uint16_t *)ma); |
| 2366 | *mb++ = (int32_t)(*ma++); |
| 2367 | } |
| 2368 | } |
| 2369 | break; |
| 2370 | case TIFF_LONG8: |
| 2371 | { |
| 2372 | uint64_t *ma; |
| 2373 | int32_t *mb; |
| 2374 | uint32_t n; |
| 2375 | ma = (uint64_t *)origdata; |
| 2376 | mb = data; |
| 2377 | for (n = 0; n < count; n++) |
| 2378 | { |
| 2379 | if (tif->tif_flags & TIFF_SWAB) |
| 2380 | TIFFSwabLong8(ma); |
| 2381 | err = TIFFReadDirEntryCheckRangeSlongLong8(*ma); |
| 2382 | if (err != TIFFReadDirEntryErrOk) |
| 2383 | break; |
| 2384 | *mb++ = (int32_t)(*ma++); |
| 2385 | } |
| 2386 | } |
| 2387 | break; |
| 2388 | case TIFF_SLONG8: |
| 2389 | { |
| 2390 | int64_t *ma; |
| 2391 | int32_t *mb; |
| 2392 | uint32_t n; |
| 2393 | ma = (int64_t *)origdata; |
| 2394 | mb = data; |
| 2395 | for (n = 0; n < count; n++) |
| 2396 | { |
| 2397 | if (tif->tif_flags & TIFF_SWAB) |
| 2398 | TIFFSwabLong8((uint64_t *)ma); |
| 2399 | err = TIFFReadDirEntryCheckRangeSlongSlong8(*ma); |
| 2400 | if (err != TIFFReadDirEntryErrOk) |
| 2401 | break; |
| 2402 | *mb++ = (int32_t)(*ma++); |
| 2403 | } |
| 2404 | } |
| 2405 | break; |
| 2406 | } |
| 2407 | _TIFFfreeExt(tif, origdata); |
| 2408 | if (err != TIFFReadDirEntryErrOk) |
| 2409 | { |
| 2410 | _TIFFfreeExt(tif, data); |
| 2411 | return (err); |
| 2412 | } |
| 2413 | *value = data; |
| 2414 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2415 | } |
| 2416 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2417 | static enum TIFFReadDirEntryErr |
| 2418 | TIFFReadDirEntryLong8ArrayWithLimit(TIFF *tif, TIFFDirEntry *direntry, |
| 2419 | uint64_t **value, uint64_t maxcount) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2420 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2421 | enum TIFFReadDirEntryErr err; |
| 2422 | uint32_t count; |
| 2423 | void *origdata; |
| 2424 | uint64_t *data; |
| 2425 | switch (direntry->tdir_type) |
| 2426 | { |
| 2427 | case TIFF_BYTE: |
| 2428 | case TIFF_SBYTE: |
| 2429 | case TIFF_SHORT: |
| 2430 | case TIFF_SSHORT: |
| 2431 | case TIFF_LONG: |
| 2432 | case TIFF_SLONG: |
| 2433 | case TIFF_LONG8: |
| 2434 | case TIFF_SLONG8: |
| 2435 | break; |
| 2436 | default: |
| 2437 | return (TIFFReadDirEntryErrType); |
| 2438 | } |
| 2439 | err = TIFFReadDirEntryArrayWithLimit(tif, direntry, &count, 8, &origdata, |
| 2440 | maxcount); |
| 2441 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 2442 | { |
| 2443 | *value = 0; |
| 2444 | return (err); |
| 2445 | } |
| 2446 | switch (direntry->tdir_type) |
| 2447 | { |
| 2448 | case TIFF_LONG8: |
| 2449 | *value = (uint64_t *)origdata; |
| 2450 | if (tif->tif_flags & TIFF_SWAB) |
| 2451 | TIFFSwabArrayOfLong8(*value, count); |
| 2452 | return (TIFFReadDirEntryErrOk); |
| 2453 | case TIFF_SLONG8: |
| 2454 | { |
| 2455 | int64_t *m; |
| 2456 | uint32_t n; |
| 2457 | m = (int64_t *)origdata; |
| 2458 | for (n = 0; n < count; n++) |
| 2459 | { |
| 2460 | if (tif->tif_flags & TIFF_SWAB) |
| 2461 | TIFFSwabLong8((uint64_t *)m); |
| 2462 | err = TIFFReadDirEntryCheckRangeLong8Slong8(*m); |
| 2463 | if (err != TIFFReadDirEntryErrOk) |
| 2464 | { |
| 2465 | _TIFFfreeExt(tif, origdata); |
| 2466 | return (err); |
| 2467 | } |
| 2468 | m++; |
| 2469 | } |
| 2470 | *value = (uint64_t *)origdata; |
| 2471 | return (TIFFReadDirEntryErrOk); |
| 2472 | } |
| 2473 | } |
| 2474 | data = (uint64_t *)_TIFFmallocExt(tif, count * 8); |
| 2475 | if (data == 0) |
| 2476 | { |
| 2477 | _TIFFfreeExt(tif, origdata); |
| 2478 | return (TIFFReadDirEntryErrAlloc); |
| 2479 | } |
| 2480 | switch (direntry->tdir_type) |
| 2481 | { |
| 2482 | case TIFF_BYTE: |
| 2483 | { |
| 2484 | uint8_t *ma; |
| 2485 | uint64_t *mb; |
| 2486 | uint32_t n; |
| 2487 | ma = (uint8_t *)origdata; |
| 2488 | mb = data; |
| 2489 | for (n = 0; n < count; n++) |
| 2490 | *mb++ = (uint64_t)(*ma++); |
| 2491 | } |
| 2492 | break; |
| 2493 | case TIFF_SBYTE: |
| 2494 | { |
| 2495 | int8_t *ma; |
| 2496 | uint64_t *mb; |
| 2497 | uint32_t n; |
| 2498 | ma = (int8_t *)origdata; |
| 2499 | mb = data; |
| 2500 | for (n = 0; n < count; n++) |
| 2501 | { |
| 2502 | err = TIFFReadDirEntryCheckRangeLong8Sbyte(*ma); |
| 2503 | if (err != TIFFReadDirEntryErrOk) |
| 2504 | break; |
| 2505 | *mb++ = (uint64_t)(*ma++); |
| 2506 | } |
| 2507 | } |
| 2508 | break; |
| 2509 | case TIFF_SHORT: |
| 2510 | { |
| 2511 | uint16_t *ma; |
| 2512 | uint64_t *mb; |
| 2513 | uint32_t n; |
| 2514 | ma = (uint16_t *)origdata; |
| 2515 | mb = data; |
| 2516 | for (n = 0; n < count; n++) |
| 2517 | { |
| 2518 | if (tif->tif_flags & TIFF_SWAB) |
| 2519 | TIFFSwabShort(ma); |
| 2520 | *mb++ = (uint64_t)(*ma++); |
| 2521 | } |
| 2522 | } |
| 2523 | break; |
| 2524 | case TIFF_SSHORT: |
| 2525 | { |
| 2526 | int16_t *ma; |
| 2527 | uint64_t *mb; |
| 2528 | uint32_t n; |
| 2529 | ma = (int16_t *)origdata; |
| 2530 | mb = data; |
| 2531 | for (n = 0; n < count; n++) |
| 2532 | { |
| 2533 | if (tif->tif_flags & TIFF_SWAB) |
| 2534 | TIFFSwabShort((uint16_t *)ma); |
| 2535 | err = TIFFReadDirEntryCheckRangeLong8Sshort(*ma); |
| 2536 | if (err != TIFFReadDirEntryErrOk) |
| 2537 | break; |
| 2538 | *mb++ = (uint64_t)(*ma++); |
| 2539 | } |
| 2540 | } |
| 2541 | break; |
| 2542 | case TIFF_LONG: |
| 2543 | { |
| 2544 | uint32_t *ma; |
| 2545 | uint64_t *mb; |
| 2546 | uint32_t n; |
| 2547 | ma = (uint32_t *)origdata; |
| 2548 | mb = data; |
| 2549 | for (n = 0; n < count; n++) |
| 2550 | { |
| 2551 | if (tif->tif_flags & TIFF_SWAB) |
| 2552 | TIFFSwabLong(ma); |
| 2553 | *mb++ = (uint64_t)(*ma++); |
| 2554 | } |
| 2555 | } |
| 2556 | break; |
| 2557 | case TIFF_SLONG: |
| 2558 | { |
| 2559 | int32_t *ma; |
| 2560 | uint64_t *mb; |
| 2561 | uint32_t n; |
| 2562 | ma = (int32_t *)origdata; |
| 2563 | mb = data; |
| 2564 | for (n = 0; n < count; n++) |
| 2565 | { |
| 2566 | if (tif->tif_flags & TIFF_SWAB) |
| 2567 | TIFFSwabLong((uint32_t *)ma); |
| 2568 | err = TIFFReadDirEntryCheckRangeLong8Slong(*ma); |
| 2569 | if (err != TIFFReadDirEntryErrOk) |
| 2570 | break; |
| 2571 | *mb++ = (uint64_t)(*ma++); |
| 2572 | } |
| 2573 | } |
| 2574 | break; |
| 2575 | } |
| 2576 | _TIFFfreeExt(tif, origdata); |
| 2577 | if (err != TIFFReadDirEntryErrOk) |
| 2578 | { |
| 2579 | _TIFFfreeExt(tif, data); |
| 2580 | return (err); |
| 2581 | } |
| 2582 | *value = data; |
| 2583 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2584 | } |
| 2585 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2586 | static enum TIFFReadDirEntryErr |
| 2587 | TIFFReadDirEntryLong8Array(TIFF *tif, TIFFDirEntry *direntry, uint64_t **value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2588 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2589 | return TIFFReadDirEntryLong8ArrayWithLimit(tif, direntry, value, |
| 2590 | ~((uint64_t)0)); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2591 | } |
| 2592 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2593 | static enum TIFFReadDirEntryErr |
| 2594 | TIFFReadDirEntrySlong8Array(TIFF *tif, TIFFDirEntry *direntry, int64_t **value) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 2595 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2596 | enum TIFFReadDirEntryErr err; |
| 2597 | uint32_t count; |
| 2598 | void *origdata; |
| 2599 | int64_t *data; |
| 2600 | switch (direntry->tdir_type) |
| 2601 | { |
| 2602 | case TIFF_BYTE: |
| 2603 | case TIFF_SBYTE: |
| 2604 | case TIFF_SHORT: |
| 2605 | case TIFF_SSHORT: |
| 2606 | case TIFF_LONG: |
| 2607 | case TIFF_SLONG: |
| 2608 | case TIFF_LONG8: |
| 2609 | case TIFF_SLONG8: |
| 2610 | break; |
| 2611 | default: |
| 2612 | return (TIFFReadDirEntryErrType); |
| 2613 | } |
| 2614 | err = TIFFReadDirEntryArray(tif, direntry, &count, 8, &origdata); |
| 2615 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 2616 | { |
| 2617 | *value = 0; |
| 2618 | return (err); |
| 2619 | } |
| 2620 | switch (direntry->tdir_type) |
| 2621 | { |
| 2622 | case TIFF_LONG8: |
| 2623 | { |
| 2624 | uint64_t *m; |
| 2625 | uint32_t n; |
| 2626 | m = (uint64_t *)origdata; |
| 2627 | for (n = 0; n < count; n++) |
| 2628 | { |
| 2629 | if (tif->tif_flags & TIFF_SWAB) |
| 2630 | TIFFSwabLong8(m); |
| 2631 | err = TIFFReadDirEntryCheckRangeSlong8Long8(*m); |
| 2632 | if (err != TIFFReadDirEntryErrOk) |
| 2633 | { |
| 2634 | _TIFFfreeExt(tif, origdata); |
| 2635 | return (err); |
| 2636 | } |
| 2637 | m++; |
| 2638 | } |
| 2639 | *value = (int64_t *)origdata; |
| 2640 | return (TIFFReadDirEntryErrOk); |
| 2641 | } |
| 2642 | case TIFF_SLONG8: |
| 2643 | *value = (int64_t *)origdata; |
| 2644 | if (tif->tif_flags & TIFF_SWAB) |
| 2645 | TIFFSwabArrayOfLong8((uint64_t *)(*value), count); |
| 2646 | return (TIFFReadDirEntryErrOk); |
| 2647 | } |
| 2648 | data = (int64_t *)_TIFFmallocExt(tif, count * 8); |
| 2649 | if (data == 0) |
| 2650 | { |
| 2651 | _TIFFfreeExt(tif, origdata); |
| 2652 | return (TIFFReadDirEntryErrAlloc); |
| 2653 | } |
| 2654 | switch (direntry->tdir_type) |
| 2655 | { |
| 2656 | case TIFF_BYTE: |
| 2657 | { |
| 2658 | uint8_t *ma; |
| 2659 | int64_t *mb; |
| 2660 | uint32_t n; |
| 2661 | ma = (uint8_t *)origdata; |
| 2662 | mb = data; |
| 2663 | for (n = 0; n < count; n++) |
| 2664 | *mb++ = (int64_t)(*ma++); |
| 2665 | } |
| 2666 | break; |
| 2667 | case TIFF_SBYTE: |
| 2668 | { |
| 2669 | int8_t *ma; |
| 2670 | int64_t *mb; |
| 2671 | uint32_t n; |
| 2672 | ma = (int8_t *)origdata; |
| 2673 | mb = data; |
| 2674 | for (n = 0; n < count; n++) |
| 2675 | *mb++ = (int64_t)(*ma++); |
| 2676 | } |
| 2677 | break; |
| 2678 | case TIFF_SHORT: |
| 2679 | { |
| 2680 | uint16_t *ma; |
| 2681 | int64_t *mb; |
| 2682 | uint32_t n; |
| 2683 | ma = (uint16_t *)origdata; |
| 2684 | mb = data; |
| 2685 | for (n = 0; n < count; n++) |
| 2686 | { |
| 2687 | if (tif->tif_flags & TIFF_SWAB) |
| 2688 | TIFFSwabShort(ma); |
| 2689 | *mb++ = (int64_t)(*ma++); |
| 2690 | } |
| 2691 | } |
| 2692 | break; |
| 2693 | case TIFF_SSHORT: |
| 2694 | { |
| 2695 | int16_t *ma; |
| 2696 | int64_t *mb; |
| 2697 | uint32_t n; |
| 2698 | ma = (int16_t *)origdata; |
| 2699 | mb = data; |
| 2700 | for (n = 0; n < count; n++) |
| 2701 | { |
| 2702 | if (tif->tif_flags & TIFF_SWAB) |
| 2703 | TIFFSwabShort((uint16_t *)ma); |
| 2704 | *mb++ = (int64_t)(*ma++); |
| 2705 | } |
| 2706 | } |
| 2707 | break; |
| 2708 | case TIFF_LONG: |
| 2709 | { |
| 2710 | uint32_t *ma; |
| 2711 | int64_t *mb; |
| 2712 | uint32_t n; |
| 2713 | ma = (uint32_t *)origdata; |
| 2714 | mb = data; |
| 2715 | for (n = 0; n < count; n++) |
| 2716 | { |
| 2717 | if (tif->tif_flags & TIFF_SWAB) |
| 2718 | TIFFSwabLong(ma); |
| 2719 | *mb++ = (int64_t)(*ma++); |
| 2720 | } |
| 2721 | } |
| 2722 | break; |
| 2723 | case TIFF_SLONG: |
| 2724 | { |
| 2725 | int32_t *ma; |
| 2726 | int64_t *mb; |
| 2727 | uint32_t n; |
| 2728 | ma = (int32_t *)origdata; |
| 2729 | mb = data; |
| 2730 | for (n = 0; n < count; n++) |
| 2731 | { |
| 2732 | if (tif->tif_flags & TIFF_SWAB) |
| 2733 | TIFFSwabLong((uint32_t *)ma); |
| 2734 | *mb++ = (int64_t)(*ma++); |
| 2735 | } |
| 2736 | } |
| 2737 | break; |
| 2738 | } |
| 2739 | _TIFFfreeExt(tif, origdata); |
| 2740 | *value = data; |
| 2741 | return (TIFFReadDirEntryErrOk); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 2742 | } |
| 2743 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2744 | static enum TIFFReadDirEntryErr |
| 2745 | TIFFReadDirEntryFloatArray(TIFF *tif, TIFFDirEntry *direntry, float **value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2746 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2747 | enum TIFFReadDirEntryErr err; |
| 2748 | uint32_t count; |
| 2749 | void *origdata; |
| 2750 | float *data; |
| 2751 | switch (direntry->tdir_type) |
| 2752 | { |
| 2753 | case TIFF_BYTE: |
| 2754 | case TIFF_SBYTE: |
| 2755 | case TIFF_SHORT: |
| 2756 | case TIFF_SSHORT: |
| 2757 | case TIFF_LONG: |
| 2758 | case TIFF_SLONG: |
| 2759 | case TIFF_LONG8: |
| 2760 | case TIFF_SLONG8: |
| 2761 | case TIFF_RATIONAL: |
| 2762 | case TIFF_SRATIONAL: |
| 2763 | case TIFF_FLOAT: |
| 2764 | case TIFF_DOUBLE: |
| 2765 | break; |
| 2766 | default: |
| 2767 | return (TIFFReadDirEntryErrType); |
| 2768 | } |
| 2769 | err = TIFFReadDirEntryArray(tif, direntry, &count, 4, &origdata); |
| 2770 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 2771 | { |
| 2772 | *value = 0; |
| 2773 | return (err); |
| 2774 | } |
| 2775 | switch (direntry->tdir_type) |
| 2776 | { |
| 2777 | case TIFF_FLOAT: |
| 2778 | if (tif->tif_flags & TIFF_SWAB) |
| 2779 | TIFFSwabArrayOfLong((uint32_t *)origdata, count); |
| 2780 | TIFFCvtIEEEDoubleToNative(tif, count, (float *)origdata); |
| 2781 | *value = (float *)origdata; |
| 2782 | return (TIFFReadDirEntryErrOk); |
| 2783 | } |
| 2784 | data = (float *)_TIFFmallocExt(tif, count * sizeof(float)); |
| 2785 | if (data == 0) |
| 2786 | { |
| 2787 | _TIFFfreeExt(tif, origdata); |
| 2788 | return (TIFFReadDirEntryErrAlloc); |
| 2789 | } |
| 2790 | switch (direntry->tdir_type) |
| 2791 | { |
| 2792 | case TIFF_BYTE: |
| 2793 | { |
| 2794 | uint8_t *ma; |
| 2795 | float *mb; |
| 2796 | uint32_t n; |
| 2797 | ma = (uint8_t *)origdata; |
| 2798 | mb = data; |
| 2799 | for (n = 0; n < count; n++) |
| 2800 | *mb++ = (float)(*ma++); |
| 2801 | } |
| 2802 | break; |
| 2803 | case TIFF_SBYTE: |
| 2804 | { |
| 2805 | int8_t *ma; |
| 2806 | float *mb; |
| 2807 | uint32_t n; |
| 2808 | ma = (int8_t *)origdata; |
| 2809 | mb = data; |
| 2810 | for (n = 0; n < count; n++) |
| 2811 | *mb++ = (float)(*ma++); |
| 2812 | } |
| 2813 | break; |
| 2814 | case TIFF_SHORT: |
| 2815 | { |
| 2816 | uint16_t *ma; |
| 2817 | float *mb; |
| 2818 | uint32_t n; |
| 2819 | ma = (uint16_t *)origdata; |
| 2820 | mb = data; |
| 2821 | for (n = 0; n < count; n++) |
| 2822 | { |
| 2823 | if (tif->tif_flags & TIFF_SWAB) |
| 2824 | TIFFSwabShort(ma); |
| 2825 | *mb++ = (float)(*ma++); |
| 2826 | } |
| 2827 | } |
| 2828 | break; |
| 2829 | case TIFF_SSHORT: |
| 2830 | { |
| 2831 | int16_t *ma; |
| 2832 | float *mb; |
| 2833 | uint32_t n; |
| 2834 | ma = (int16_t *)origdata; |
| 2835 | mb = data; |
| 2836 | for (n = 0; n < count; n++) |
| 2837 | { |
| 2838 | if (tif->tif_flags & TIFF_SWAB) |
| 2839 | TIFFSwabShort((uint16_t *)ma); |
| 2840 | *mb++ = (float)(*ma++); |
| 2841 | } |
| 2842 | } |
| 2843 | break; |
| 2844 | case TIFF_LONG: |
| 2845 | { |
| 2846 | uint32_t *ma; |
| 2847 | float *mb; |
| 2848 | uint32_t n; |
| 2849 | ma = (uint32_t *)origdata; |
| 2850 | mb = data; |
| 2851 | for (n = 0; n < count; n++) |
| 2852 | { |
| 2853 | if (tif->tif_flags & TIFF_SWAB) |
| 2854 | TIFFSwabLong(ma); |
| 2855 | *mb++ = (float)(*ma++); |
| 2856 | } |
| 2857 | } |
| 2858 | break; |
| 2859 | case TIFF_SLONG: |
| 2860 | { |
| 2861 | int32_t *ma; |
| 2862 | float *mb; |
| 2863 | uint32_t n; |
| 2864 | ma = (int32_t *)origdata; |
| 2865 | mb = data; |
| 2866 | for (n = 0; n < count; n++) |
| 2867 | { |
| 2868 | if (tif->tif_flags & TIFF_SWAB) |
| 2869 | TIFFSwabLong((uint32_t *)ma); |
| 2870 | *mb++ = (float)(*ma++); |
| 2871 | } |
| 2872 | } |
| 2873 | break; |
| 2874 | case TIFF_LONG8: |
| 2875 | { |
| 2876 | uint64_t *ma; |
| 2877 | float *mb; |
| 2878 | uint32_t n; |
| 2879 | ma = (uint64_t *)origdata; |
| 2880 | mb = data; |
| 2881 | for (n = 0; n < count; n++) |
| 2882 | { |
| 2883 | if (tif->tif_flags & TIFF_SWAB) |
| 2884 | TIFFSwabLong8(ma); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2885 | #if defined(__WIN32__) && (_MSC_VER < 1500) |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2886 | /* |
| 2887 | * XXX: MSVC 6.0 does not support |
| 2888 | * conversion of 64-bit integers into |
| 2889 | * floating point values. |
| 2890 | */ |
| 2891 | *mb++ = _TIFFUInt64ToFloat(*ma++); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2892 | #else |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2893 | *mb++ = (float)(*ma++); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2894 | #endif |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2895 | } |
| 2896 | } |
| 2897 | break; |
| 2898 | case TIFF_SLONG8: |
| 2899 | { |
| 2900 | int64_t *ma; |
| 2901 | float *mb; |
| 2902 | uint32_t n; |
| 2903 | ma = (int64_t *)origdata; |
| 2904 | mb = data; |
| 2905 | for (n = 0; n < count; n++) |
| 2906 | { |
| 2907 | if (tif->tif_flags & TIFF_SWAB) |
| 2908 | TIFFSwabLong8((uint64_t *)ma); |
| 2909 | *mb++ = (float)(*ma++); |
| 2910 | } |
| 2911 | } |
| 2912 | break; |
| 2913 | case TIFF_RATIONAL: |
| 2914 | { |
| 2915 | uint32_t *ma; |
| 2916 | uint32_t maa; |
| 2917 | uint32_t mab; |
| 2918 | float *mb; |
| 2919 | uint32_t n; |
| 2920 | ma = (uint32_t *)origdata; |
| 2921 | mb = data; |
| 2922 | for (n = 0; n < count; n++) |
| 2923 | { |
| 2924 | if (tif->tif_flags & TIFF_SWAB) |
| 2925 | TIFFSwabLong(ma); |
| 2926 | maa = *ma++; |
| 2927 | if (tif->tif_flags & TIFF_SWAB) |
| 2928 | TIFFSwabLong(ma); |
| 2929 | mab = *ma++; |
| 2930 | if (mab == 0) |
| 2931 | *mb++ = 0.0; |
| 2932 | else |
| 2933 | *mb++ = (float)maa / (float)mab; |
| 2934 | } |
| 2935 | } |
| 2936 | break; |
| 2937 | case TIFF_SRATIONAL: |
| 2938 | { |
| 2939 | uint32_t *ma; |
| 2940 | int32_t maa; |
| 2941 | uint32_t mab; |
| 2942 | float *mb; |
| 2943 | uint32_t n; |
| 2944 | ma = (uint32_t *)origdata; |
| 2945 | mb = data; |
| 2946 | for (n = 0; n < count; n++) |
| 2947 | { |
| 2948 | if (tif->tif_flags & TIFF_SWAB) |
| 2949 | TIFFSwabLong(ma); |
| 2950 | maa = *(int32_t *)ma; |
| 2951 | ma++; |
| 2952 | if (tif->tif_flags & TIFF_SWAB) |
| 2953 | TIFFSwabLong(ma); |
| 2954 | mab = *ma++; |
| 2955 | if (mab == 0) |
| 2956 | *mb++ = 0.0; |
| 2957 | else |
| 2958 | *mb++ = (float)maa / (float)mab; |
| 2959 | } |
| 2960 | } |
| 2961 | break; |
| 2962 | case TIFF_DOUBLE: |
| 2963 | { |
| 2964 | double *ma; |
| 2965 | float *mb; |
| 2966 | uint32_t n; |
| 2967 | if (tif->tif_flags & TIFF_SWAB) |
| 2968 | TIFFSwabArrayOfLong8((uint64_t *)origdata, count); |
| 2969 | TIFFCvtIEEEDoubleToNative(tif, count, (double *)origdata); |
| 2970 | ma = (double *)origdata; |
| 2971 | mb = data; |
| 2972 | for (n = 0; n < count; n++) |
| 2973 | { |
| 2974 | double val = *ma++; |
| 2975 | if (val > FLT_MAX) |
| 2976 | val = FLT_MAX; |
| 2977 | else if (val < -FLT_MAX) |
| 2978 | val = -FLT_MAX; |
| 2979 | *mb++ = (float)val; |
| 2980 | } |
| 2981 | } |
| 2982 | break; |
| 2983 | } |
| 2984 | _TIFFfreeExt(tif, origdata); |
| 2985 | *value = data; |
| 2986 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2987 | } |
| 2988 | |
| 2989 | static enum TIFFReadDirEntryErr |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2990 | TIFFReadDirEntryDoubleArray(TIFF *tif, TIFFDirEntry *direntry, double **value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 2991 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 2992 | enum TIFFReadDirEntryErr err; |
| 2993 | uint32_t count; |
| 2994 | void *origdata; |
| 2995 | double *data; |
| 2996 | switch (direntry->tdir_type) |
| 2997 | { |
| 2998 | case TIFF_BYTE: |
| 2999 | case TIFF_SBYTE: |
| 3000 | case TIFF_SHORT: |
| 3001 | case TIFF_SSHORT: |
| 3002 | case TIFF_LONG: |
| 3003 | case TIFF_SLONG: |
| 3004 | case TIFF_LONG8: |
| 3005 | case TIFF_SLONG8: |
| 3006 | case TIFF_RATIONAL: |
| 3007 | case TIFF_SRATIONAL: |
| 3008 | case TIFF_FLOAT: |
| 3009 | case TIFF_DOUBLE: |
| 3010 | break; |
| 3011 | default: |
| 3012 | return (TIFFReadDirEntryErrType); |
| 3013 | } |
| 3014 | err = TIFFReadDirEntryArray(tif, direntry, &count, 8, &origdata); |
| 3015 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 3016 | { |
| 3017 | *value = 0; |
| 3018 | return (err); |
| 3019 | } |
| 3020 | switch (direntry->tdir_type) |
| 3021 | { |
| 3022 | case TIFF_DOUBLE: |
| 3023 | if (tif->tif_flags & TIFF_SWAB) |
| 3024 | TIFFSwabArrayOfLong8((uint64_t *)origdata, count); |
| 3025 | TIFFCvtIEEEDoubleToNative(tif, count, (double *)origdata); |
| 3026 | *value = (double *)origdata; |
| 3027 | return (TIFFReadDirEntryErrOk); |
| 3028 | } |
| 3029 | data = (double *)_TIFFmallocExt(tif, count * sizeof(double)); |
| 3030 | if (data == 0) |
| 3031 | { |
| 3032 | _TIFFfreeExt(tif, origdata); |
| 3033 | return (TIFFReadDirEntryErrAlloc); |
| 3034 | } |
| 3035 | switch (direntry->tdir_type) |
| 3036 | { |
| 3037 | case TIFF_BYTE: |
| 3038 | { |
| 3039 | uint8_t *ma; |
| 3040 | double *mb; |
| 3041 | uint32_t n; |
| 3042 | ma = (uint8_t *)origdata; |
| 3043 | mb = data; |
| 3044 | for (n = 0; n < count; n++) |
| 3045 | *mb++ = (double)(*ma++); |
| 3046 | } |
| 3047 | break; |
| 3048 | case TIFF_SBYTE: |
| 3049 | { |
| 3050 | int8_t *ma; |
| 3051 | double *mb; |
| 3052 | uint32_t n; |
| 3053 | ma = (int8_t *)origdata; |
| 3054 | mb = data; |
| 3055 | for (n = 0; n < count; n++) |
| 3056 | *mb++ = (double)(*ma++); |
| 3057 | } |
| 3058 | break; |
| 3059 | case TIFF_SHORT: |
| 3060 | { |
| 3061 | uint16_t *ma; |
| 3062 | double *mb; |
| 3063 | uint32_t n; |
| 3064 | ma = (uint16_t *)origdata; |
| 3065 | mb = data; |
| 3066 | for (n = 0; n < count; n++) |
| 3067 | { |
| 3068 | if (tif->tif_flags & TIFF_SWAB) |
| 3069 | TIFFSwabShort(ma); |
| 3070 | *mb++ = (double)(*ma++); |
| 3071 | } |
| 3072 | } |
| 3073 | break; |
| 3074 | case TIFF_SSHORT: |
| 3075 | { |
| 3076 | int16_t *ma; |
| 3077 | double *mb; |
| 3078 | uint32_t n; |
| 3079 | ma = (int16_t *)origdata; |
| 3080 | mb = data; |
| 3081 | for (n = 0; n < count; n++) |
| 3082 | { |
| 3083 | if (tif->tif_flags & TIFF_SWAB) |
| 3084 | TIFFSwabShort((uint16_t *)ma); |
| 3085 | *mb++ = (double)(*ma++); |
| 3086 | } |
| 3087 | } |
| 3088 | break; |
| 3089 | case TIFF_LONG: |
| 3090 | { |
| 3091 | uint32_t *ma; |
| 3092 | double *mb; |
| 3093 | uint32_t n; |
| 3094 | ma = (uint32_t *)origdata; |
| 3095 | mb = data; |
| 3096 | for (n = 0; n < count; n++) |
| 3097 | { |
| 3098 | if (tif->tif_flags & TIFF_SWAB) |
| 3099 | TIFFSwabLong(ma); |
| 3100 | *mb++ = (double)(*ma++); |
| 3101 | } |
| 3102 | } |
| 3103 | break; |
| 3104 | case TIFF_SLONG: |
| 3105 | { |
| 3106 | int32_t *ma; |
| 3107 | double *mb; |
| 3108 | uint32_t n; |
| 3109 | ma = (int32_t *)origdata; |
| 3110 | mb = data; |
| 3111 | for (n = 0; n < count; n++) |
| 3112 | { |
| 3113 | if (tif->tif_flags & TIFF_SWAB) |
| 3114 | TIFFSwabLong((uint32_t *)ma); |
| 3115 | *mb++ = (double)(*ma++); |
| 3116 | } |
| 3117 | } |
| 3118 | break; |
| 3119 | case TIFF_LONG8: |
| 3120 | { |
| 3121 | uint64_t *ma; |
| 3122 | double *mb; |
| 3123 | uint32_t n; |
| 3124 | ma = (uint64_t *)origdata; |
| 3125 | mb = data; |
| 3126 | for (n = 0; n < count; n++) |
| 3127 | { |
| 3128 | if (tif->tif_flags & TIFF_SWAB) |
| 3129 | TIFFSwabLong8(ma); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3130 | #if defined(__WIN32__) && (_MSC_VER < 1500) |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3131 | /* |
| 3132 | * XXX: MSVC 6.0 does not support |
| 3133 | * conversion of 64-bit integers into |
| 3134 | * floating point values. |
| 3135 | */ |
| 3136 | *mb++ = _TIFFUInt64ToDouble(*ma++); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3137 | #else |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3138 | *mb++ = (double)(*ma++); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3139 | #endif |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3140 | } |
| 3141 | } |
| 3142 | break; |
| 3143 | case TIFF_SLONG8: |
| 3144 | { |
| 3145 | int64_t *ma; |
| 3146 | double *mb; |
| 3147 | uint32_t n; |
| 3148 | ma = (int64_t *)origdata; |
| 3149 | mb = data; |
| 3150 | for (n = 0; n < count; n++) |
| 3151 | { |
| 3152 | if (tif->tif_flags & TIFF_SWAB) |
| 3153 | TIFFSwabLong8((uint64_t *)ma); |
| 3154 | *mb++ = (double)(*ma++); |
| 3155 | } |
| 3156 | } |
| 3157 | break; |
| 3158 | case TIFF_RATIONAL: |
| 3159 | { |
| 3160 | uint32_t *ma; |
| 3161 | uint32_t maa; |
| 3162 | uint32_t mab; |
| 3163 | double *mb; |
| 3164 | uint32_t n; |
| 3165 | ma = (uint32_t *)origdata; |
| 3166 | mb = data; |
| 3167 | for (n = 0; n < count; n++) |
| 3168 | { |
| 3169 | if (tif->tif_flags & TIFF_SWAB) |
| 3170 | TIFFSwabLong(ma); |
| 3171 | maa = *ma++; |
| 3172 | if (tif->tif_flags & TIFF_SWAB) |
| 3173 | TIFFSwabLong(ma); |
| 3174 | mab = *ma++; |
| 3175 | if (mab == 0) |
| 3176 | *mb++ = 0.0; |
| 3177 | else |
| 3178 | *mb++ = (double)maa / (double)mab; |
| 3179 | } |
| 3180 | } |
| 3181 | break; |
| 3182 | case TIFF_SRATIONAL: |
| 3183 | { |
| 3184 | uint32_t *ma; |
| 3185 | int32_t maa; |
| 3186 | uint32_t mab; |
| 3187 | double *mb; |
| 3188 | uint32_t n; |
| 3189 | ma = (uint32_t *)origdata; |
| 3190 | mb = data; |
| 3191 | for (n = 0; n < count; n++) |
| 3192 | { |
| 3193 | if (tif->tif_flags & TIFF_SWAB) |
| 3194 | TIFFSwabLong(ma); |
| 3195 | maa = *(int32_t *)ma; |
| 3196 | ma++; |
| 3197 | if (tif->tif_flags & TIFF_SWAB) |
| 3198 | TIFFSwabLong(ma); |
| 3199 | mab = *ma++; |
| 3200 | if (mab == 0) |
| 3201 | *mb++ = 0.0; |
| 3202 | else |
| 3203 | *mb++ = (double)maa / (double)mab; |
| 3204 | } |
| 3205 | } |
| 3206 | break; |
| 3207 | case TIFF_FLOAT: |
| 3208 | { |
| 3209 | float *ma; |
| 3210 | double *mb; |
| 3211 | uint32_t n; |
| 3212 | if (tif->tif_flags & TIFF_SWAB) |
| 3213 | TIFFSwabArrayOfLong((uint32_t *)origdata, count); |
| 3214 | TIFFCvtIEEEFloatToNative(tif, count, (float *)origdata); |
| 3215 | ma = (float *)origdata; |
| 3216 | mb = data; |
| 3217 | for (n = 0; n < count; n++) |
| 3218 | *mb++ = (double)(*ma++); |
| 3219 | } |
| 3220 | break; |
| 3221 | } |
| 3222 | _TIFFfreeExt(tif, origdata); |
| 3223 | *value = data; |
| 3224 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3225 | } |
| 3226 | |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3227 | static enum TIFFReadDirEntryErr |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3228 | TIFFReadDirEntryIfd8Array(TIFF *tif, TIFFDirEntry *direntry, uint64_t **value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3229 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3230 | enum TIFFReadDirEntryErr err; |
| 3231 | uint32_t count; |
| 3232 | void *origdata; |
| 3233 | uint64_t *data; |
| 3234 | switch (direntry->tdir_type) |
| 3235 | { |
| 3236 | case TIFF_LONG: |
| 3237 | case TIFF_LONG8: |
| 3238 | case TIFF_IFD: |
| 3239 | case TIFF_IFD8: |
| 3240 | break; |
| 3241 | default: |
| 3242 | return (TIFFReadDirEntryErrType); |
| 3243 | } |
| 3244 | err = TIFFReadDirEntryArray(tif, direntry, &count, 8, &origdata); |
| 3245 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 3246 | { |
| 3247 | *value = 0; |
| 3248 | return (err); |
| 3249 | } |
| 3250 | switch (direntry->tdir_type) |
| 3251 | { |
| 3252 | case TIFF_LONG8: |
| 3253 | case TIFF_IFD8: |
| 3254 | *value = (uint64_t *)origdata; |
| 3255 | if (tif->tif_flags & TIFF_SWAB) |
| 3256 | TIFFSwabArrayOfLong8(*value, count); |
| 3257 | return (TIFFReadDirEntryErrOk); |
| 3258 | } |
| 3259 | data = (uint64_t *)_TIFFmallocExt(tif, count * 8); |
| 3260 | if (data == 0) |
| 3261 | { |
| 3262 | _TIFFfreeExt(tif, origdata); |
| 3263 | return (TIFFReadDirEntryErrAlloc); |
| 3264 | } |
| 3265 | switch (direntry->tdir_type) |
| 3266 | { |
| 3267 | case TIFF_LONG: |
| 3268 | case TIFF_IFD: |
| 3269 | { |
| 3270 | uint32_t *ma; |
| 3271 | uint64_t *mb; |
| 3272 | uint32_t n; |
| 3273 | ma = (uint32_t *)origdata; |
| 3274 | mb = data; |
| 3275 | for (n = 0; n < count; n++) |
| 3276 | { |
| 3277 | if (tif->tif_flags & TIFF_SWAB) |
| 3278 | TIFFSwabLong(ma); |
| 3279 | *mb++ = (uint64_t)(*ma++); |
| 3280 | } |
| 3281 | } |
| 3282 | break; |
| 3283 | } |
| 3284 | _TIFFfreeExt(tif, origdata); |
| 3285 | *value = data; |
| 3286 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3287 | } |
| 3288 | |
| 3289 | static enum TIFFReadDirEntryErr |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3290 | TIFFReadDirEntryPersampleShort(TIFF *tif, TIFFDirEntry *direntry, |
| 3291 | uint16_t *value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3292 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3293 | enum TIFFReadDirEntryErr err; |
| 3294 | uint16_t *m; |
| 3295 | uint16_t *na; |
| 3296 | uint16_t nb; |
| 3297 | if (direntry->tdir_count < (uint64_t)tif->tif_dir.td_samplesperpixel) |
| 3298 | return (TIFFReadDirEntryErrCount); |
| 3299 | err = TIFFReadDirEntryShortArray(tif, direntry, &m); |
| 3300 | if (err != TIFFReadDirEntryErrOk || m == NULL) |
| 3301 | return (err); |
| 3302 | na = m; |
| 3303 | nb = tif->tif_dir.td_samplesperpixel; |
| 3304 | *value = *na++; |
| 3305 | nb--; |
| 3306 | while (nb > 0) |
| 3307 | { |
| 3308 | if (*na++ != *value) |
| 3309 | { |
| 3310 | err = TIFFReadDirEntryErrPsdif; |
| 3311 | break; |
| 3312 | } |
| 3313 | nb--; |
| 3314 | } |
| 3315 | _TIFFfreeExt(tif, m); |
| 3316 | return (err); |
| 3317 | } |
| 3318 | |
| 3319 | static void TIFFReadDirEntryCheckedByte(TIFF *tif, TIFFDirEntry *direntry, |
| 3320 | uint8_t *value) |
| 3321 | { |
| 3322 | (void)tif; |
| 3323 | *value = *(uint8_t *)(&direntry->tdir_offset); |
| 3324 | } |
| 3325 | |
| 3326 | static void TIFFReadDirEntryCheckedSbyte(TIFF *tif, TIFFDirEntry *direntry, |
| 3327 | int8_t *value) |
| 3328 | { |
| 3329 | (void)tif; |
| 3330 | *value = *(int8_t *)(&direntry->tdir_offset); |
| 3331 | } |
| 3332 | |
| 3333 | static void TIFFReadDirEntryCheckedShort(TIFF *tif, TIFFDirEntry *direntry, |
| 3334 | uint16_t *value) |
| 3335 | { |
| 3336 | *value = direntry->tdir_offset.toff_short; |
| 3337 | /* *value=*(uint16_t*)(&direntry->tdir_offset); */ |
| 3338 | if (tif->tif_flags & TIFF_SWAB) |
| 3339 | TIFFSwabShort(value); |
| 3340 | } |
| 3341 | |
| 3342 | static void TIFFReadDirEntryCheckedSshort(TIFF *tif, TIFFDirEntry *direntry, |
| 3343 | int16_t *value) |
| 3344 | { |
| 3345 | *value = *(int16_t *)(&direntry->tdir_offset); |
| 3346 | if (tif->tif_flags & TIFF_SWAB) |
| 3347 | TIFFSwabShort((uint16_t *)value); |
| 3348 | } |
| 3349 | |
| 3350 | static void TIFFReadDirEntryCheckedLong(TIFF *tif, TIFFDirEntry *direntry, |
| 3351 | uint32_t *value) |
| 3352 | { |
| 3353 | *value = *(uint32_t *)(&direntry->tdir_offset); |
| 3354 | if (tif->tif_flags & TIFF_SWAB) |
| 3355 | TIFFSwabLong(value); |
| 3356 | } |
| 3357 | |
| 3358 | static void TIFFReadDirEntryCheckedSlong(TIFF *tif, TIFFDirEntry *direntry, |
| 3359 | int32_t *value) |
| 3360 | { |
| 3361 | *value = *(int32_t *)(&direntry->tdir_offset); |
| 3362 | if (tif->tif_flags & TIFF_SWAB) |
| 3363 | TIFFSwabLong((uint32_t *)value); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3364 | } |
| 3365 | |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3366 | static enum TIFFReadDirEntryErr |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3367 | TIFFReadDirEntryCheckedLong8(TIFF *tif, TIFFDirEntry *direntry, uint64_t *value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3368 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3369 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 3370 | { |
| 3371 | enum TIFFReadDirEntryErr err; |
| 3372 | uint32_t offset = direntry->tdir_offset.toff_long; |
| 3373 | if (tif->tif_flags & TIFF_SWAB) |
| 3374 | TIFFSwabLong(&offset); |
| 3375 | err = TIFFReadDirEntryData(tif, offset, 8, value); |
| 3376 | if (err != TIFFReadDirEntryErrOk) |
| 3377 | return (err); |
| 3378 | } |
| 3379 | else |
| 3380 | *value = direntry->tdir_offset.toff_long8; |
| 3381 | if (tif->tif_flags & TIFF_SWAB) |
| 3382 | TIFFSwabLong8(value); |
| 3383 | return (TIFFReadDirEntryErrOk); |
| 3384 | } |
| 3385 | |
| 3386 | static enum TIFFReadDirEntryErr |
| 3387 | TIFFReadDirEntryCheckedSlong8(TIFF *tif, TIFFDirEntry *direntry, int64_t *value) |
| 3388 | { |
| 3389 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 3390 | { |
| 3391 | enum TIFFReadDirEntryErr err; |
| 3392 | uint32_t offset = direntry->tdir_offset.toff_long; |
| 3393 | if (tif->tif_flags & TIFF_SWAB) |
| 3394 | TIFFSwabLong(&offset); |
| 3395 | err = TIFFReadDirEntryData(tif, offset, 8, value); |
| 3396 | if (err != TIFFReadDirEntryErrOk) |
| 3397 | return (err); |
| 3398 | } |
| 3399 | else |
| 3400 | *value = *(int64_t *)(&direntry->tdir_offset); |
| 3401 | if (tif->tif_flags & TIFF_SWAB) |
| 3402 | TIFFSwabLong8((uint64_t *)value); |
| 3403 | return (TIFFReadDirEntryErrOk); |
| 3404 | } |
| 3405 | |
| 3406 | static enum TIFFReadDirEntryErr |
| 3407 | TIFFReadDirEntryCheckedRational(TIFF *tif, TIFFDirEntry *direntry, |
| 3408 | double *value) |
| 3409 | { |
| 3410 | UInt64Aligned_t m; |
| 3411 | |
| 3412 | assert(sizeof(double) == 8); |
| 3413 | assert(sizeof(uint64_t) == 8); |
| 3414 | assert(sizeof(uint32_t) == 4); |
| 3415 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 3416 | { |
| 3417 | enum TIFFReadDirEntryErr err; |
| 3418 | uint32_t offset = direntry->tdir_offset.toff_long; |
| 3419 | if (tif->tif_flags & TIFF_SWAB) |
| 3420 | TIFFSwabLong(&offset); |
| 3421 | err = TIFFReadDirEntryData(tif, offset, 8, m.i); |
| 3422 | if (err != TIFFReadDirEntryErrOk) |
| 3423 | return (err); |
| 3424 | } |
| 3425 | else |
| 3426 | m.l = direntry->tdir_offset.toff_long8; |
| 3427 | if (tif->tif_flags & TIFF_SWAB) |
| 3428 | TIFFSwabArrayOfLong(m.i, 2); |
| 3429 | /* Not completely sure what we should do when m.i[1]==0, but some */ |
| 3430 | /* sanitizers do not like division by 0.0: */ |
| 3431 | /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */ |
| 3432 | if (m.i[0] == 0 || m.i[1] == 0) |
| 3433 | *value = 0.0; |
| 3434 | else |
| 3435 | *value = (double)m.i[0] / (double)m.i[1]; |
| 3436 | return (TIFFReadDirEntryErrOk); |
| 3437 | } |
| 3438 | |
| 3439 | static enum TIFFReadDirEntryErr |
| 3440 | TIFFReadDirEntryCheckedSrational(TIFF *tif, TIFFDirEntry *direntry, |
| 3441 | double *value) |
| 3442 | { |
| 3443 | UInt64Aligned_t m; |
| 3444 | assert(sizeof(double) == 8); |
| 3445 | assert(sizeof(uint64_t) == 8); |
| 3446 | assert(sizeof(int32_t) == 4); |
| 3447 | assert(sizeof(uint32_t) == 4); |
| 3448 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 3449 | { |
| 3450 | enum TIFFReadDirEntryErr err; |
| 3451 | uint32_t offset = direntry->tdir_offset.toff_long; |
| 3452 | if (tif->tif_flags & TIFF_SWAB) |
| 3453 | TIFFSwabLong(&offset); |
| 3454 | err = TIFFReadDirEntryData(tif, offset, 8, m.i); |
| 3455 | if (err != TIFFReadDirEntryErrOk) |
| 3456 | return (err); |
| 3457 | } |
| 3458 | else |
| 3459 | m.l = direntry->tdir_offset.toff_long8; |
| 3460 | if (tif->tif_flags & TIFF_SWAB) |
| 3461 | TIFFSwabArrayOfLong(m.i, 2); |
| 3462 | /* Not completely sure what we should do when m.i[1]==0, but some */ |
| 3463 | /* sanitizers do not like division by 0.0: */ |
| 3464 | /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */ |
| 3465 | if ((int32_t)m.i[0] == 0 || m.i[1] == 0) |
| 3466 | *value = 0.0; |
| 3467 | else |
| 3468 | *value = (double)((int32_t)m.i[0]) / (double)m.i[1]; |
| 3469 | return (TIFFReadDirEntryErrOk); |
| 3470 | } |
| 3471 | |
| 3472 | static void TIFFReadDirEntryCheckedFloat(TIFF *tif, TIFFDirEntry *direntry, |
| 3473 | float *value) |
| 3474 | { |
| 3475 | union |
| 3476 | { |
| 3477 | float f; |
| 3478 | uint32_t i; |
| 3479 | } float_union; |
| 3480 | assert(sizeof(float) == 4); |
| 3481 | assert(sizeof(uint32_t) == 4); |
| 3482 | assert(sizeof(float_union) == 4); |
| 3483 | float_union.i = *(uint32_t *)(&direntry->tdir_offset); |
| 3484 | *value = float_union.f; |
| 3485 | if (tif->tif_flags & TIFF_SWAB) |
| 3486 | TIFFSwabLong((uint32_t *)value); |
| 3487 | } |
| 3488 | |
| 3489 | static enum TIFFReadDirEntryErr |
| 3490 | TIFFReadDirEntryCheckedDouble(TIFF *tif, TIFFDirEntry *direntry, double *value) |
| 3491 | { |
| 3492 | assert(sizeof(double) == 8); |
| 3493 | assert(sizeof(uint64_t) == 8); |
| 3494 | assert(sizeof(UInt64Aligned_t) == 8); |
| 3495 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 3496 | { |
| 3497 | enum TIFFReadDirEntryErr err; |
| 3498 | uint32_t offset = direntry->tdir_offset.toff_long; |
| 3499 | if (tif->tif_flags & TIFF_SWAB) |
| 3500 | TIFFSwabLong(&offset); |
| 3501 | err = TIFFReadDirEntryData(tif, offset, 8, value); |
| 3502 | if (err != TIFFReadDirEntryErrOk) |
| 3503 | return (err); |
| 3504 | } |
| 3505 | else |
| 3506 | { |
| 3507 | UInt64Aligned_t uint64_union; |
| 3508 | uint64_union.l = direntry->tdir_offset.toff_long8; |
| 3509 | *value = uint64_union.d; |
| 3510 | } |
| 3511 | if (tif->tif_flags & TIFF_SWAB) |
| 3512 | TIFFSwabLong8((uint64_t *)value); |
| 3513 | return (TIFFReadDirEntryErrOk); |
| 3514 | } |
| 3515 | |
| 3516 | static enum TIFFReadDirEntryErr |
| 3517 | TIFFReadDirEntryCheckRangeByteSbyte(int8_t value) |
| 3518 | { |
| 3519 | if (value < 0) |
| 3520 | return (TIFFReadDirEntryErrRange); |
| 3521 | else |
| 3522 | return (TIFFReadDirEntryErrOk); |
| 3523 | } |
| 3524 | |
| 3525 | static enum TIFFReadDirEntryErr |
| 3526 | TIFFReadDirEntryCheckRangeByteShort(uint16_t value) |
| 3527 | { |
| 3528 | if (value > 0xFF) |
| 3529 | return (TIFFReadDirEntryErrRange); |
| 3530 | else |
| 3531 | return (TIFFReadDirEntryErrOk); |
| 3532 | } |
| 3533 | |
| 3534 | static enum TIFFReadDirEntryErr |
| 3535 | TIFFReadDirEntryCheckRangeByteSshort(int16_t value) |
| 3536 | { |
| 3537 | if ((value < 0) || (value > 0xFF)) |
| 3538 | return (TIFFReadDirEntryErrRange); |
| 3539 | else |
| 3540 | return (TIFFReadDirEntryErrOk); |
| 3541 | } |
| 3542 | |
| 3543 | static enum TIFFReadDirEntryErr |
| 3544 | TIFFReadDirEntryCheckRangeByteLong(uint32_t value) |
| 3545 | { |
| 3546 | if (value > 0xFF) |
| 3547 | return (TIFFReadDirEntryErrRange); |
| 3548 | else |
| 3549 | return (TIFFReadDirEntryErrOk); |
| 3550 | } |
| 3551 | |
| 3552 | static enum TIFFReadDirEntryErr |
| 3553 | TIFFReadDirEntryCheckRangeByteSlong(int32_t value) |
| 3554 | { |
| 3555 | if ((value < 0) || (value > 0xFF)) |
| 3556 | return (TIFFReadDirEntryErrRange); |
| 3557 | else |
| 3558 | return (TIFFReadDirEntryErrOk); |
| 3559 | } |
| 3560 | |
| 3561 | static enum TIFFReadDirEntryErr |
| 3562 | TIFFReadDirEntryCheckRangeByteLong8(uint64_t value) |
| 3563 | { |
| 3564 | if (value > 0xFF) |
| 3565 | return (TIFFReadDirEntryErrRange); |
| 3566 | else |
| 3567 | return (TIFFReadDirEntryErrOk); |
| 3568 | } |
| 3569 | |
| 3570 | static enum TIFFReadDirEntryErr |
| 3571 | TIFFReadDirEntryCheckRangeByteSlong8(int64_t value) |
| 3572 | { |
| 3573 | if ((value < 0) || (value > 0xFF)) |
| 3574 | return (TIFFReadDirEntryErrRange); |
| 3575 | else |
| 3576 | return (TIFFReadDirEntryErrOk); |
| 3577 | } |
| 3578 | |
| 3579 | static enum TIFFReadDirEntryErr |
| 3580 | TIFFReadDirEntryCheckRangeSbyteByte(uint8_t value) |
| 3581 | { |
| 3582 | if (value > 0x7F) |
| 3583 | return (TIFFReadDirEntryErrRange); |
| 3584 | else |
| 3585 | return (TIFFReadDirEntryErrOk); |
| 3586 | } |
| 3587 | |
| 3588 | static enum TIFFReadDirEntryErr |
| 3589 | TIFFReadDirEntryCheckRangeSbyteShort(uint16_t value) |
| 3590 | { |
| 3591 | if (value > 0x7F) |
| 3592 | return (TIFFReadDirEntryErrRange); |
| 3593 | else |
| 3594 | return (TIFFReadDirEntryErrOk); |
| 3595 | } |
| 3596 | |
| 3597 | static enum TIFFReadDirEntryErr |
| 3598 | TIFFReadDirEntryCheckRangeSbyteSshort(int16_t value) |
| 3599 | { |
| 3600 | if ((value < -0x80) || (value > 0x7F)) |
| 3601 | return (TIFFReadDirEntryErrRange); |
| 3602 | else |
| 3603 | return (TIFFReadDirEntryErrOk); |
| 3604 | } |
| 3605 | |
| 3606 | static enum TIFFReadDirEntryErr |
| 3607 | TIFFReadDirEntryCheckRangeSbyteLong(uint32_t value) |
| 3608 | { |
| 3609 | if (value > 0x7F) |
| 3610 | return (TIFFReadDirEntryErrRange); |
| 3611 | else |
| 3612 | return (TIFFReadDirEntryErrOk); |
| 3613 | } |
| 3614 | |
| 3615 | static enum TIFFReadDirEntryErr |
| 3616 | TIFFReadDirEntryCheckRangeSbyteSlong(int32_t value) |
| 3617 | { |
| 3618 | if ((value < -0x80) || (value > 0x7F)) |
| 3619 | return (TIFFReadDirEntryErrRange); |
| 3620 | else |
| 3621 | return (TIFFReadDirEntryErrOk); |
| 3622 | } |
| 3623 | |
| 3624 | static enum TIFFReadDirEntryErr |
| 3625 | TIFFReadDirEntryCheckRangeSbyteLong8(uint64_t value) |
| 3626 | { |
| 3627 | if (value > 0x7F) |
| 3628 | return (TIFFReadDirEntryErrRange); |
| 3629 | else |
| 3630 | return (TIFFReadDirEntryErrOk); |
| 3631 | } |
| 3632 | |
| 3633 | static enum TIFFReadDirEntryErr |
| 3634 | TIFFReadDirEntryCheckRangeSbyteSlong8(int64_t value) |
| 3635 | { |
| 3636 | if ((value < -0x80) || (value > 0x7F)) |
| 3637 | return (TIFFReadDirEntryErrRange); |
| 3638 | else |
| 3639 | return (TIFFReadDirEntryErrOk); |
| 3640 | } |
| 3641 | |
| 3642 | static enum TIFFReadDirEntryErr |
| 3643 | TIFFReadDirEntryCheckRangeShortSbyte(int8_t value) |
| 3644 | { |
| 3645 | if (value < 0) |
| 3646 | return (TIFFReadDirEntryErrRange); |
| 3647 | else |
| 3648 | return (TIFFReadDirEntryErrOk); |
| 3649 | } |
| 3650 | |
| 3651 | static enum TIFFReadDirEntryErr |
| 3652 | TIFFReadDirEntryCheckRangeShortSshort(int16_t value) |
| 3653 | { |
| 3654 | if (value < 0) |
| 3655 | return (TIFFReadDirEntryErrRange); |
| 3656 | else |
| 3657 | return (TIFFReadDirEntryErrOk); |
| 3658 | } |
| 3659 | |
| 3660 | static enum TIFFReadDirEntryErr |
| 3661 | TIFFReadDirEntryCheckRangeShortLong(uint32_t value) |
| 3662 | { |
| 3663 | if (value > 0xFFFF) |
| 3664 | return (TIFFReadDirEntryErrRange); |
| 3665 | else |
| 3666 | return (TIFFReadDirEntryErrOk); |
| 3667 | } |
| 3668 | |
| 3669 | static enum TIFFReadDirEntryErr |
| 3670 | TIFFReadDirEntryCheckRangeShortSlong(int32_t value) |
| 3671 | { |
| 3672 | if ((value < 0) || (value > 0xFFFF)) |
| 3673 | return (TIFFReadDirEntryErrRange); |
| 3674 | else |
| 3675 | return (TIFFReadDirEntryErrOk); |
| 3676 | } |
| 3677 | |
| 3678 | static enum TIFFReadDirEntryErr |
| 3679 | TIFFReadDirEntryCheckRangeShortLong8(uint64_t value) |
| 3680 | { |
| 3681 | if (value > 0xFFFF) |
| 3682 | return (TIFFReadDirEntryErrRange); |
| 3683 | else |
| 3684 | return (TIFFReadDirEntryErrOk); |
| 3685 | } |
| 3686 | |
| 3687 | static enum TIFFReadDirEntryErr |
| 3688 | TIFFReadDirEntryCheckRangeShortSlong8(int64_t value) |
| 3689 | { |
| 3690 | if ((value < 0) || (value > 0xFFFF)) |
| 3691 | return (TIFFReadDirEntryErrRange); |
| 3692 | else |
| 3693 | return (TIFFReadDirEntryErrOk); |
| 3694 | } |
| 3695 | |
| 3696 | static enum TIFFReadDirEntryErr |
| 3697 | TIFFReadDirEntryCheckRangeSshortShort(uint16_t value) |
| 3698 | { |
| 3699 | if (value > 0x7FFF) |
| 3700 | return (TIFFReadDirEntryErrRange); |
| 3701 | else |
| 3702 | return (TIFFReadDirEntryErrOk); |
| 3703 | } |
| 3704 | |
| 3705 | static enum TIFFReadDirEntryErr |
| 3706 | TIFFReadDirEntryCheckRangeSshortLong(uint32_t value) |
| 3707 | { |
| 3708 | if (value > 0x7FFF) |
| 3709 | return (TIFFReadDirEntryErrRange); |
| 3710 | else |
| 3711 | return (TIFFReadDirEntryErrOk); |
| 3712 | } |
| 3713 | |
| 3714 | static enum TIFFReadDirEntryErr |
| 3715 | TIFFReadDirEntryCheckRangeSshortSlong(int32_t value) |
| 3716 | { |
| 3717 | if ((value < -0x8000) || (value > 0x7FFF)) |
| 3718 | return (TIFFReadDirEntryErrRange); |
| 3719 | else |
| 3720 | return (TIFFReadDirEntryErrOk); |
| 3721 | } |
| 3722 | |
| 3723 | static enum TIFFReadDirEntryErr |
| 3724 | TIFFReadDirEntryCheckRangeSshortLong8(uint64_t value) |
| 3725 | { |
| 3726 | if (value > 0x7FFF) |
| 3727 | return (TIFFReadDirEntryErrRange); |
| 3728 | else |
| 3729 | return (TIFFReadDirEntryErrOk); |
| 3730 | } |
| 3731 | |
| 3732 | static enum TIFFReadDirEntryErr |
| 3733 | TIFFReadDirEntryCheckRangeSshortSlong8(int64_t value) |
| 3734 | { |
| 3735 | if ((value < -0x8000) || (value > 0x7FFF)) |
| 3736 | return (TIFFReadDirEntryErrRange); |
| 3737 | else |
| 3738 | return (TIFFReadDirEntryErrOk); |
| 3739 | } |
| 3740 | |
| 3741 | static enum TIFFReadDirEntryErr |
| 3742 | TIFFReadDirEntryCheckRangeLongSbyte(int8_t value) |
| 3743 | { |
| 3744 | if (value < 0) |
| 3745 | return (TIFFReadDirEntryErrRange); |
| 3746 | else |
| 3747 | return (TIFFReadDirEntryErrOk); |
| 3748 | } |
| 3749 | |
| 3750 | static enum TIFFReadDirEntryErr |
| 3751 | TIFFReadDirEntryCheckRangeLongSshort(int16_t value) |
| 3752 | { |
| 3753 | if (value < 0) |
| 3754 | return (TIFFReadDirEntryErrRange); |
| 3755 | else |
| 3756 | return (TIFFReadDirEntryErrOk); |
| 3757 | } |
| 3758 | |
| 3759 | static enum TIFFReadDirEntryErr |
| 3760 | TIFFReadDirEntryCheckRangeLongSlong(int32_t value) |
| 3761 | { |
| 3762 | if (value < 0) |
| 3763 | return (TIFFReadDirEntryErrRange); |
| 3764 | else |
| 3765 | return (TIFFReadDirEntryErrOk); |
| 3766 | } |
| 3767 | |
| 3768 | static enum TIFFReadDirEntryErr |
| 3769 | TIFFReadDirEntryCheckRangeLongLong8(uint64_t value) |
| 3770 | { |
| 3771 | if (value > UINT32_MAX) |
| 3772 | return (TIFFReadDirEntryErrRange); |
| 3773 | else |
| 3774 | return (TIFFReadDirEntryErrOk); |
| 3775 | } |
| 3776 | |
| 3777 | static enum TIFFReadDirEntryErr |
| 3778 | TIFFReadDirEntryCheckRangeLongSlong8(int64_t value) |
| 3779 | { |
| 3780 | if ((value < 0) || (value > (int64_t)UINT32_MAX)) |
| 3781 | return (TIFFReadDirEntryErrRange); |
| 3782 | else |
| 3783 | return (TIFFReadDirEntryErrOk); |
| 3784 | } |
| 3785 | |
| 3786 | static enum TIFFReadDirEntryErr |
| 3787 | TIFFReadDirEntryCheckRangeSlongLong(uint32_t value) |
| 3788 | { |
| 3789 | if (value > 0x7FFFFFFFUL) |
| 3790 | return (TIFFReadDirEntryErrRange); |
| 3791 | else |
| 3792 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3793 | } |
| 3794 | |
| 3795 | /* Check that the 8-byte unsigned value can fit in a 4-byte unsigned range */ |
| 3796 | static enum TIFFReadDirEntryErr |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3797 | TIFFReadDirEntryCheckRangeSlongLong8(uint64_t value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3798 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3799 | if (value > 0x7FFFFFFF) |
| 3800 | return (TIFFReadDirEntryErrRange); |
| 3801 | else |
| 3802 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3803 | } |
| 3804 | |
| 3805 | /* Check that the 8-byte signed value can fit in a 4-byte signed range */ |
| 3806 | static enum TIFFReadDirEntryErr |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3807 | TIFFReadDirEntryCheckRangeSlongSlong8(int64_t value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3808 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3809 | if ((value < 0 - ((int64_t)0x7FFFFFFF + 1)) || (value > 0x7FFFFFFF)) |
| 3810 | return (TIFFReadDirEntryErrRange); |
| 3811 | else |
| 3812 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3813 | } |
| 3814 | |
| 3815 | static enum TIFFReadDirEntryErr |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3816 | TIFFReadDirEntryCheckRangeLong8Sbyte(int8_t value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3817 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3818 | if (value < 0) |
| 3819 | return (TIFFReadDirEntryErrRange); |
| 3820 | else |
| 3821 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3822 | } |
| 3823 | |
| 3824 | static enum TIFFReadDirEntryErr |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3825 | TIFFReadDirEntryCheckRangeLong8Sshort(int16_t value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3826 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3827 | if (value < 0) |
| 3828 | return (TIFFReadDirEntryErrRange); |
| 3829 | else |
| 3830 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3831 | } |
| 3832 | |
| 3833 | static enum TIFFReadDirEntryErr |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3834 | TIFFReadDirEntryCheckRangeLong8Slong(int32_t value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3835 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3836 | if (value < 0) |
| 3837 | return (TIFFReadDirEntryErrRange); |
| 3838 | else |
| 3839 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3840 | } |
| 3841 | |
| 3842 | static enum TIFFReadDirEntryErr |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3843 | TIFFReadDirEntryCheckRangeLong8Slong8(int64_t value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3844 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3845 | if (value < 0) |
| 3846 | return (TIFFReadDirEntryErrRange); |
| 3847 | else |
| 3848 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3849 | } |
| 3850 | |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3851 | static enum TIFFReadDirEntryErr |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3852 | TIFFReadDirEntryCheckRangeSlong8Long8(uint64_t value) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3853 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3854 | if (value > INT64_MAX) |
| 3855 | return (TIFFReadDirEntryErrRange); |
| 3856 | else |
| 3857 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3858 | } |
| 3859 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3860 | static enum TIFFReadDirEntryErr TIFFReadDirEntryData(TIFF *tif, uint64_t offset, |
| 3861 | tmsize_t size, void *dest) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3862 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3863 | assert(size > 0); |
| 3864 | if (!isMapped(tif)) |
| 3865 | { |
| 3866 | if (!SeekOK(tif, offset)) |
| 3867 | return (TIFFReadDirEntryErrIo); |
| 3868 | if (!ReadOK(tif, dest, size)) |
| 3869 | return (TIFFReadDirEntryErrIo); |
| 3870 | } |
| 3871 | else |
| 3872 | { |
| 3873 | size_t ma, mb; |
| 3874 | ma = (size_t)offset; |
| 3875 | if ((uint64_t)ma != offset || ma > (~(size_t)0) - (size_t)size) |
| 3876 | { |
| 3877 | return TIFFReadDirEntryErrIo; |
| 3878 | } |
| 3879 | mb = ma + size; |
| 3880 | if (mb > (uint64_t)tif->tif_size) |
| 3881 | return (TIFFReadDirEntryErrIo); |
| 3882 | _TIFFmemcpy(dest, tif->tif_base + ma, size); |
| 3883 | } |
| 3884 | return (TIFFReadDirEntryErrOk); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3885 | } |
| 3886 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3887 | static void TIFFReadDirEntryOutputErr(TIFF *tif, enum TIFFReadDirEntryErr err, |
| 3888 | const char *module, const char *tagname, |
| 3889 | int recover) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3890 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3891 | if (!recover) |
| 3892 | { |
| 3893 | switch (err) |
| 3894 | { |
| 3895 | case TIFFReadDirEntryErrCount: |
| 3896 | TIFFErrorExtR(tif, module, "Incorrect count for \"%s\"", |
| 3897 | tagname); |
| 3898 | break; |
| 3899 | case TIFFReadDirEntryErrType: |
| 3900 | TIFFErrorExtR(tif, module, "Incompatible type for \"%s\"", |
| 3901 | tagname); |
| 3902 | break; |
| 3903 | case TIFFReadDirEntryErrIo: |
| 3904 | TIFFErrorExtR(tif, module, "IO error during reading of \"%s\"", |
| 3905 | tagname); |
| 3906 | break; |
| 3907 | case TIFFReadDirEntryErrRange: |
| 3908 | TIFFErrorExtR(tif, module, "Incorrect value for \"%s\"", |
| 3909 | tagname); |
| 3910 | break; |
| 3911 | case TIFFReadDirEntryErrPsdif: |
| 3912 | TIFFErrorExtR( |
| 3913 | tif, module, |
| 3914 | "Cannot handle different values per sample for \"%s\"", |
| 3915 | tagname); |
| 3916 | break; |
| 3917 | case TIFFReadDirEntryErrSizesan: |
| 3918 | TIFFErrorExtR(tif, module, |
| 3919 | "Sanity check on size of \"%s\" value failed", |
| 3920 | tagname); |
| 3921 | break; |
| 3922 | case TIFFReadDirEntryErrAlloc: |
| 3923 | TIFFErrorExtR(tif, module, "Out of memory reading of \"%s\"", |
| 3924 | tagname); |
| 3925 | break; |
| 3926 | default: |
| 3927 | assert(0); /* we should never get here */ |
| 3928 | break; |
| 3929 | } |
| 3930 | } |
| 3931 | else |
| 3932 | { |
| 3933 | switch (err) |
| 3934 | { |
| 3935 | case TIFFReadDirEntryErrCount: |
| 3936 | TIFFWarningExtR(tif, module, |
| 3937 | "Incorrect count for \"%s\"; tag ignored", |
| 3938 | tagname); |
| 3939 | break; |
| 3940 | case TIFFReadDirEntryErrType: |
| 3941 | TIFFWarningExtR(tif, module, |
| 3942 | "Incompatible type for \"%s\"; tag ignored", |
| 3943 | tagname); |
| 3944 | break; |
| 3945 | case TIFFReadDirEntryErrIo: |
| 3946 | TIFFWarningExtR( |
| 3947 | tif, module, |
| 3948 | "IO error during reading of \"%s\"; tag ignored", tagname); |
| 3949 | break; |
| 3950 | case TIFFReadDirEntryErrRange: |
| 3951 | TIFFWarningExtR(tif, module, |
| 3952 | "Incorrect value for \"%s\"; tag ignored", |
| 3953 | tagname); |
| 3954 | break; |
| 3955 | case TIFFReadDirEntryErrPsdif: |
| 3956 | TIFFWarningExtR(tif, module, |
| 3957 | "Cannot handle different values per sample for " |
| 3958 | "\"%s\"; tag ignored", |
| 3959 | tagname); |
| 3960 | break; |
| 3961 | case TIFFReadDirEntryErrSizesan: |
| 3962 | TIFFWarningExtR( |
| 3963 | tif, module, |
| 3964 | "Sanity check on size of \"%s\" value failed; tag ignored", |
| 3965 | tagname); |
| 3966 | break; |
| 3967 | case TIFFReadDirEntryErrAlloc: |
| 3968 | TIFFWarningExtR(tif, module, |
| 3969 | "Out of memory reading of \"%s\"; tag ignored", |
| 3970 | tagname); |
| 3971 | break; |
| 3972 | default: |
| 3973 | assert(0); /* we should never get here */ |
| 3974 | break; |
| 3975 | } |
| 3976 | } |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 3977 | } |
| 3978 | |
| 3979 | /* |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 3980 | * Return the maximum number of color channels specified for a given photometric |
| 3981 | * type. 0 is returned if photometric type isn't supported or no default value |
| 3982 | * is defined by the specification. |
| 3983 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3984 | static int _TIFFGetMaxColorChannels(uint16_t photometric) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 3985 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3986 | switch (photometric) |
| 3987 | { |
| 3988 | case PHOTOMETRIC_PALETTE: |
| 3989 | case PHOTOMETRIC_MINISWHITE: |
| 3990 | case PHOTOMETRIC_MINISBLACK: |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 3991 | return 1; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3992 | case PHOTOMETRIC_YCBCR: |
| 3993 | case PHOTOMETRIC_RGB: |
| 3994 | case PHOTOMETRIC_CIELAB: |
| 3995 | case PHOTOMETRIC_LOGLUV: |
| 3996 | case PHOTOMETRIC_ITULAB: |
| 3997 | case PHOTOMETRIC_ICCLAB: |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 3998 | return 3; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 3999 | case PHOTOMETRIC_SEPARATED: |
| 4000 | case PHOTOMETRIC_MASK: |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4001 | return 4; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4002 | case PHOTOMETRIC_LOGL: |
| 4003 | case PHOTOMETRIC_CFA: |
| 4004 | default: |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4005 | return 0; |
| 4006 | } |
| 4007 | } |
| 4008 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4009 | static int ByteCountLooksBad(TIFF *tif) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4010 | { |
| 4011 | /* |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4012 | * Assume we have wrong StripByteCount value (in case |
| 4013 | * of single strip) in following cases: |
| 4014 | * - it is equal to zero along with StripOffset; |
| 4015 | * - it is larger than file itself (in case of uncompressed |
| 4016 | * image); |
| 4017 | * - it is smaller than the size of the bytes per row |
| 4018 | * multiplied on the number of rows. The last case should |
| 4019 | * not be checked in the case of writing new image, |
| 4020 | * because we may do not know the exact strip size |
| 4021 | * until the whole image will be written and directory |
| 4022 | * dumped out. |
| 4023 | */ |
| 4024 | uint64_t bytecount = TIFFGetStrileByteCount(tif, 0); |
| 4025 | uint64_t offset = TIFFGetStrileOffset(tif, 0); |
| 4026 | uint64_t filesize; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4027 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4028 | if (offset == 0) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4029 | return 0; |
| 4030 | if (bytecount == 0) |
| 4031 | return 1; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4032 | if (tif->tif_dir.td_compression != COMPRESSION_NONE) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4033 | return 0; |
| 4034 | filesize = TIFFGetFileSize(tif); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4035 | if (offset <= filesize && bytecount > filesize - offset) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4036 | return 1; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4037 | if (tif->tif_mode == O_RDONLY) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4038 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4039 | uint64_t scanlinesize = TIFFScanlineSize64(tif); |
| 4040 | if (tif->tif_dir.td_imagelength > 0 && |
| 4041 | scanlinesize > UINT64_MAX / tif->tif_dir.td_imagelength) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4042 | { |
| 4043 | return 1; |
| 4044 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4045 | if (bytecount < scanlinesize * tif->tif_dir.td_imagelength) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4046 | return 1; |
| 4047 | } |
| 4048 | return 0; |
| 4049 | } |
| 4050 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4051 | /* |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4052 | * Read the next TIFF directory from a file and convert it to the internal |
| 4053 | * format. We read directories sequentially. |
| 4054 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4055 | int TIFFReadDirectory(TIFF *tif) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4056 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4057 | static const char module[] = "TIFFReadDirectory"; |
| 4058 | TIFFDirEntry *dir; |
| 4059 | uint16_t dircount; |
| 4060 | TIFFDirEntry *dp; |
| 4061 | uint16_t di; |
| 4062 | const TIFFField *fip; |
| 4063 | uint32_t fii = FAILED_FII; |
| 4064 | toff_t nextdiroff; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4065 | int bitspersample_read = FALSE; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4066 | int color_channels; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4067 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4068 | if (tif->tif_nextdiroff == 0) |
| 4069 | { |
| 4070 | /* In this special case, tif_diroff needs also to be set to 0. */ |
| 4071 | tif->tif_diroff = tif->tif_nextdiroff; |
| 4072 | return 0; /* last offset, thus no checking necessary */ |
| 4073 | } |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4074 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4075 | nextdiroff = tif->tif_nextdiroff; |
| 4076 | /* tif_curdir++ and tif_nextdiroff should only be updated after SUCCESSFUL |
| 4077 | * reading of the directory. Otherwise, invalid IFD offsets could corrupt |
| 4078 | * the IFD list. */ |
| 4079 | if (!_TIFFCheckDirNumberAndOffset(tif, |
| 4080 | tif->tif_curdir == |
| 4081 | TIFF_NON_EXISTENT_DIR_NUMBER |
| 4082 | ? 0 |
| 4083 | : tif->tif_curdir + 1, |
| 4084 | nextdiroff)) |
| 4085 | { |
| 4086 | return 0; /* bad offset (IFD looping or more than TIFF_MAX_DIR_COUNT |
| 4087 | IFDs) */ |
| 4088 | } |
| 4089 | dircount = TIFFFetchDirectory(tif, nextdiroff, &dir, &tif->tif_nextdiroff); |
| 4090 | if (!dircount) |
| 4091 | { |
| 4092 | TIFFErrorExtR(tif, module, |
| 4093 | "Failed to read directory at offset %" PRIu64, |
| 4094 | nextdiroff); |
| 4095 | return 0; |
| 4096 | } |
| 4097 | /* Set global values after a valid directory has been fetched. |
| 4098 | * tif_diroff is already set to nextdiroff in TIFFFetchDirectory() in the |
| 4099 | * beginning. */ |
| 4100 | if (tif->tif_curdir == TIFF_NON_EXISTENT_DIR_NUMBER) |
| 4101 | tif->tif_curdir = 0; |
| 4102 | else |
| 4103 | tif->tif_curdir++; |
| 4104 | (*tif->tif_cleanup)(tif); /* cleanup any previous compression state */ |
| 4105 | |
| 4106 | TIFFReadDirectoryCheckOrder(tif, dir, dircount); |
| 4107 | |
| 4108 | /* |
| 4109 | * Mark duplicates of any tag to be ignored (bugzilla 1994) |
| 4110 | * to avoid certain pathological problems. |
| 4111 | */ |
| 4112 | { |
| 4113 | TIFFDirEntry *ma; |
| 4114 | uint16_t mb; |
| 4115 | for (ma = dir, mb = 0; mb < dircount; ma++, mb++) |
| 4116 | { |
| 4117 | TIFFDirEntry *na; |
| 4118 | uint16_t nb; |
| 4119 | for (na = ma + 1, nb = mb + 1; nb < dircount; na++, nb++) |
| 4120 | { |
| 4121 | if (ma->tdir_tag == na->tdir_tag) |
| 4122 | { |
| 4123 | na->tdir_ignore = TRUE; |
| 4124 | } |
| 4125 | } |
| 4126 | } |
| 4127 | } |
| 4128 | |
| 4129 | tif->tif_flags &= ~TIFF_BEENWRITING; /* reset before new dir */ |
| 4130 | tif->tif_flags &= ~TIFF_BUF4WRITE; /* reset before new dir */ |
| 4131 | tif->tif_flags &= ~TIFF_CHOPPEDUPARRAYS; |
| 4132 | |
| 4133 | /* free any old stuff and reinit */ |
| 4134 | TIFFFreeDirectory(tif); |
| 4135 | TIFFDefaultDirectory(tif); |
| 4136 | /* |
| 4137 | * Electronic Arts writes gray-scale TIFF files |
| 4138 | * without a PlanarConfiguration directory entry. |
| 4139 | * Thus we setup a default value here, even though |
| 4140 | * the TIFF spec says there is no default value. |
| 4141 | * After PlanarConfiguration is preset in TIFFDefaultDirectory() |
| 4142 | * the following setting is not needed, but does not harm either. |
| 4143 | */ |
| 4144 | TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); |
| 4145 | /* |
| 4146 | * Setup default value and then make a pass over |
| 4147 | * the fields to check type and tag information, |
| 4148 | * and to extract info required to size data |
| 4149 | * structures. A second pass is made afterwards |
| 4150 | * to read in everything not taken in the first pass. |
| 4151 | * But we must process the Compression tag first |
| 4152 | * in order to merge in codec-private tag definitions (otherwise |
| 4153 | * we may get complaints about unknown tags). However, the |
| 4154 | * Compression tag may be dependent on the SamplesPerPixel |
| 4155 | * tag value because older TIFF specs permitted Compression |
| 4156 | * to be written as a SamplesPerPixel-count tag entry. |
| 4157 | * Thus if we don't first figure out the correct SamplesPerPixel |
| 4158 | * tag value then we may end up ignoring the Compression tag |
| 4159 | * value because it has an incorrect count value (if the |
| 4160 | * true value of SamplesPerPixel is not 1). |
| 4161 | */ |
| 4162 | dp = |
| 4163 | TIFFReadDirectoryFindEntry(tif, dir, dircount, TIFFTAG_SAMPLESPERPIXEL); |
| 4164 | if (dp) |
| 4165 | { |
| 4166 | if (!TIFFFetchNormalTag(tif, dp, 0)) |
| 4167 | goto bad; |
| 4168 | dp->tdir_ignore = TRUE; |
| 4169 | } |
| 4170 | dp = TIFFReadDirectoryFindEntry(tif, dir, dircount, TIFFTAG_COMPRESSION); |
| 4171 | if (dp) |
| 4172 | { |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4173 | /* |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4174 | * The 5.0 spec says the Compression tag has one value, while |
| 4175 | * earlier specs say it has one value per sample. Because of |
| 4176 | * this, we accept the tag if one value is supplied with either |
| 4177 | * count. |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4178 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4179 | uint16_t value; |
| 4180 | enum TIFFReadDirEntryErr err; |
| 4181 | err = TIFFReadDirEntryShort(tif, dp, &value); |
| 4182 | if (err == TIFFReadDirEntryErrCount) |
| 4183 | err = TIFFReadDirEntryPersampleShort(tif, dp, &value); |
| 4184 | if (err != TIFFReadDirEntryErrOk) |
| 4185 | { |
| 4186 | TIFFReadDirEntryOutputErr(tif, err, module, "Compression", 0); |
| 4187 | goto bad; |
| 4188 | } |
| 4189 | if (!TIFFSetField(tif, TIFFTAG_COMPRESSION, value)) |
| 4190 | goto bad; |
| 4191 | dp->tdir_ignore = TRUE; |
| 4192 | } |
| 4193 | else |
| 4194 | { |
| 4195 | if (!TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE)) |
| 4196 | goto bad; |
| 4197 | } |
| 4198 | /* |
| 4199 | * First real pass over the directory. |
| 4200 | */ |
| 4201 | for (di = 0, dp = dir; di < dircount; di++, dp++) |
| 4202 | { |
| 4203 | if (!dp->tdir_ignore) |
| 4204 | { |
| 4205 | TIFFReadDirectoryFindFieldInfo(tif, dp->tdir_tag, &fii); |
| 4206 | if (fii == FAILED_FII) |
| 4207 | { |
| 4208 | TIFFWarningExtR(tif, module, |
| 4209 | "Unknown field with tag %" PRIu16 " (0x%" PRIx16 |
| 4210 | ") encountered", |
| 4211 | dp->tdir_tag, dp->tdir_tag); |
| 4212 | /* the following knowingly leaks the |
| 4213 | anonymous field structure */ |
| 4214 | if (!_TIFFMergeFields( |
| 4215 | tif, |
| 4216 | _TIFFCreateAnonField(tif, dp->tdir_tag, |
| 4217 | (TIFFDataType)dp->tdir_type), |
| 4218 | 1)) |
| 4219 | { |
| 4220 | TIFFWarningExtR( |
| 4221 | tif, module, |
| 4222 | "Registering anonymous field with tag %" PRIu16 |
| 4223 | " (0x%" PRIx16 ") failed", |
| 4224 | dp->tdir_tag, dp->tdir_tag); |
| 4225 | dp->tdir_ignore = TRUE; |
| 4226 | } |
| 4227 | else |
| 4228 | { |
| 4229 | TIFFReadDirectoryFindFieldInfo(tif, dp->tdir_tag, &fii); |
| 4230 | assert(fii != FAILED_FII); |
| 4231 | } |
| 4232 | } |
| 4233 | } |
| 4234 | if (!dp->tdir_ignore) |
| 4235 | { |
| 4236 | fip = tif->tif_fields[fii]; |
| 4237 | if (fip->field_bit == FIELD_IGNORE) |
| 4238 | dp->tdir_ignore = TRUE; |
| 4239 | else |
| 4240 | { |
| 4241 | switch (dp->tdir_tag) |
| 4242 | { |
| 4243 | case TIFFTAG_STRIPOFFSETS: |
| 4244 | case TIFFTAG_STRIPBYTECOUNTS: |
| 4245 | case TIFFTAG_TILEOFFSETS: |
| 4246 | case TIFFTAG_TILEBYTECOUNTS: |
| 4247 | TIFFSetFieldBit(tif, fip->field_bit); |
| 4248 | break; |
| 4249 | case TIFFTAG_IMAGEWIDTH: |
| 4250 | case TIFFTAG_IMAGELENGTH: |
| 4251 | case TIFFTAG_IMAGEDEPTH: |
| 4252 | case TIFFTAG_TILELENGTH: |
| 4253 | case TIFFTAG_TILEWIDTH: |
| 4254 | case TIFFTAG_TILEDEPTH: |
| 4255 | case TIFFTAG_PLANARCONFIG: |
| 4256 | case TIFFTAG_ROWSPERSTRIP: |
| 4257 | case TIFFTAG_EXTRASAMPLES: |
| 4258 | if (!TIFFFetchNormalTag(tif, dp, 0)) |
| 4259 | goto bad; |
| 4260 | dp->tdir_ignore = TRUE; |
| 4261 | break; |
| 4262 | default: |
| 4263 | if (!_TIFFCheckFieldIsValidForCodec(tif, dp->tdir_tag)) |
| 4264 | dp->tdir_ignore = TRUE; |
| 4265 | break; |
| 4266 | } |
| 4267 | } |
| 4268 | } |
| 4269 | } |
| 4270 | /* |
| 4271 | * XXX: OJPEG hack. |
| 4272 | * If a) compression is OJPEG, b) planarconfig tag says it's separate, |
| 4273 | * c) strip offsets/bytecounts tag are both present and |
| 4274 | * d) both contain exactly one value, then we consistently find |
| 4275 | * that the buggy implementation of the buggy compression scheme |
| 4276 | * matches contig planarconfig best. So we 'fix-up' the tag here |
| 4277 | */ |
| 4278 | if ((tif->tif_dir.td_compression == COMPRESSION_OJPEG) && |
| 4279 | (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE)) |
| 4280 | { |
| 4281 | if (!_TIFFFillStriles(tif)) |
| 4282 | goto bad; |
| 4283 | dp = TIFFReadDirectoryFindEntry(tif, dir, dircount, |
| 4284 | TIFFTAG_STRIPOFFSETS); |
| 4285 | if ((dp != 0) && (dp->tdir_count == 1)) |
| 4286 | { |
| 4287 | dp = TIFFReadDirectoryFindEntry(tif, dir, dircount, |
| 4288 | TIFFTAG_STRIPBYTECOUNTS); |
| 4289 | if ((dp != 0) && (dp->tdir_count == 1)) |
| 4290 | { |
| 4291 | tif->tif_dir.td_planarconfig = PLANARCONFIG_CONTIG; |
| 4292 | TIFFWarningExtR(tif, module, |
| 4293 | "Planarconfig tag value assumed incorrect, " |
| 4294 | "assuming data is contig instead of chunky"); |
| 4295 | } |
| 4296 | } |
| 4297 | } |
| 4298 | /* |
| 4299 | * Allocate directory structure and setup defaults. |
| 4300 | */ |
| 4301 | if (!TIFFFieldSet(tif, FIELD_IMAGEDIMENSIONS)) |
| 4302 | { |
| 4303 | MissingRequired(tif, "ImageLength"); |
| 4304 | goto bad; |
| 4305 | } |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4306 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4307 | /* |
| 4308 | * Second pass: extract other information. |
| 4309 | */ |
| 4310 | for (di = 0, dp = dir; di < dircount; di++, dp++) |
| 4311 | { |
| 4312 | if (!dp->tdir_ignore) |
| 4313 | { |
| 4314 | switch (dp->tdir_tag) |
| 4315 | { |
| 4316 | case TIFFTAG_MINSAMPLEVALUE: |
| 4317 | case TIFFTAG_MAXSAMPLEVALUE: |
| 4318 | case TIFFTAG_BITSPERSAMPLE: |
| 4319 | case TIFFTAG_DATATYPE: |
| 4320 | case TIFFTAG_SAMPLEFORMAT: |
| 4321 | /* |
| 4322 | * The MinSampleValue, MaxSampleValue, BitsPerSample |
| 4323 | * DataType and SampleFormat tags are supposed to be |
| 4324 | * written as one value/sample, but some vendors |
| 4325 | * incorrectly write one value only -- so we accept |
| 4326 | * that as well (yuck). Other vendors write correct |
| 4327 | * value for NumberOfSamples, but incorrect one for |
| 4328 | * BitsPerSample and friends, and we will read this |
| 4329 | * too. |
| 4330 | */ |
| 4331 | { |
| 4332 | uint16_t value; |
| 4333 | enum TIFFReadDirEntryErr err; |
| 4334 | err = TIFFReadDirEntryShort(tif, dp, &value); |
| 4335 | if (err == TIFFReadDirEntryErrCount) |
| 4336 | err = |
| 4337 | TIFFReadDirEntryPersampleShort(tif, dp, &value); |
| 4338 | if (err != TIFFReadDirEntryErrOk) |
| 4339 | { |
| 4340 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
| 4341 | TIFFReadDirEntryOutputErr( |
| 4342 | tif, err, module, |
| 4343 | fip ? fip->field_name : "unknown tagname", 0); |
| 4344 | goto bad; |
| 4345 | } |
| 4346 | if (!TIFFSetField(tif, dp->tdir_tag, value)) |
| 4347 | goto bad; |
| 4348 | if (dp->tdir_tag == TIFFTAG_BITSPERSAMPLE) |
| 4349 | bitspersample_read = TRUE; |
| 4350 | } |
| 4351 | break; |
| 4352 | case TIFFTAG_SMINSAMPLEVALUE: |
| 4353 | case TIFFTAG_SMAXSAMPLEVALUE: |
| 4354 | { |
| 4355 | |
| 4356 | double *data = NULL; |
| 4357 | enum TIFFReadDirEntryErr err; |
| 4358 | uint32_t saved_flags; |
| 4359 | int m; |
| 4360 | if (dp->tdir_count != |
| 4361 | (uint64_t)tif->tif_dir.td_samplesperpixel) |
| 4362 | err = TIFFReadDirEntryErrCount; |
| 4363 | else |
| 4364 | err = TIFFReadDirEntryDoubleArray(tif, dp, &data); |
| 4365 | if (err != TIFFReadDirEntryErrOk) |
| 4366 | { |
| 4367 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
| 4368 | TIFFReadDirEntryOutputErr( |
| 4369 | tif, err, module, |
| 4370 | fip ? fip->field_name : "unknown tagname", 0); |
| 4371 | goto bad; |
| 4372 | } |
| 4373 | saved_flags = tif->tif_flags; |
| 4374 | tif->tif_flags |= TIFF_PERSAMPLE; |
| 4375 | m = TIFFSetField(tif, dp->tdir_tag, data); |
| 4376 | tif->tif_flags = saved_flags; |
| 4377 | _TIFFfreeExt(tif, data); |
| 4378 | if (!m) |
| 4379 | goto bad; |
| 4380 | } |
| 4381 | break; |
| 4382 | case TIFFTAG_STRIPOFFSETS: |
| 4383 | case TIFFTAG_TILEOFFSETS: |
| 4384 | switch (dp->tdir_type) |
| 4385 | { |
| 4386 | case TIFF_SHORT: |
| 4387 | case TIFF_LONG: |
| 4388 | case TIFF_LONG8: |
| 4389 | break; |
| 4390 | default: |
| 4391 | /* Warn except if directory typically created with |
| 4392 | * TIFFDeferStrileArrayWriting() */ |
| 4393 | if (!(tif->tif_mode == O_RDWR && |
| 4394 | dp->tdir_count == 0 && dp->tdir_type == 0 && |
| 4395 | dp->tdir_offset.toff_long8 == 0)) |
| 4396 | { |
| 4397 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
| 4398 | TIFFWarningExtR( |
| 4399 | tif, module, "Invalid data type for tag %s", |
| 4400 | fip ? fip->field_name : "unknown tagname"); |
| 4401 | } |
| 4402 | break; |
| 4403 | } |
| 4404 | _TIFFmemcpy(&(tif->tif_dir.td_stripoffset_entry), dp, |
| 4405 | sizeof(TIFFDirEntry)); |
| 4406 | break; |
| 4407 | case TIFFTAG_STRIPBYTECOUNTS: |
| 4408 | case TIFFTAG_TILEBYTECOUNTS: |
| 4409 | switch (dp->tdir_type) |
| 4410 | { |
| 4411 | case TIFF_SHORT: |
| 4412 | case TIFF_LONG: |
| 4413 | case TIFF_LONG8: |
| 4414 | break; |
| 4415 | default: |
| 4416 | /* Warn except if directory typically created with |
| 4417 | * TIFFDeferStrileArrayWriting() */ |
| 4418 | if (!(tif->tif_mode == O_RDWR && |
| 4419 | dp->tdir_count == 0 && dp->tdir_type == 0 && |
| 4420 | dp->tdir_offset.toff_long8 == 0)) |
| 4421 | { |
| 4422 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
| 4423 | TIFFWarningExtR( |
| 4424 | tif, module, "Invalid data type for tag %s", |
| 4425 | fip ? fip->field_name : "unknown tagname"); |
| 4426 | } |
| 4427 | break; |
| 4428 | } |
| 4429 | _TIFFmemcpy(&(tif->tif_dir.td_stripbytecount_entry), dp, |
| 4430 | sizeof(TIFFDirEntry)); |
| 4431 | break; |
| 4432 | case TIFFTAG_COLORMAP: |
| 4433 | case TIFFTAG_TRANSFERFUNCTION: |
| 4434 | { |
| 4435 | enum TIFFReadDirEntryErr err; |
| 4436 | uint32_t countpersample; |
| 4437 | uint32_t countrequired; |
| 4438 | uint32_t incrementpersample; |
| 4439 | uint16_t *value = NULL; |
| 4440 | /* It would be dangerous to instantiate those tag values */ |
| 4441 | /* since if td_bitspersample has not yet been read (due to |
| 4442 | */ |
| 4443 | /* unordered tags), it could be read afterwards with a */ |
| 4444 | /* values greater than the default one (1), which may cause |
| 4445 | */ |
| 4446 | /* crashes in user code */ |
| 4447 | if (!bitspersample_read) |
| 4448 | { |
| 4449 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
| 4450 | TIFFWarningExtR( |
| 4451 | tif, module, |
| 4452 | "Ignoring %s since BitsPerSample tag not found", |
| 4453 | fip ? fip->field_name : "unknown tagname"); |
| 4454 | continue; |
| 4455 | } |
| 4456 | /* ColorMap or TransferFunction for high bit */ |
| 4457 | /* depths do not make much sense and could be */ |
| 4458 | /* used as a denial of service vector */ |
| 4459 | if (tif->tif_dir.td_bitspersample > 24) |
| 4460 | { |
| 4461 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
| 4462 | TIFFWarningExtR( |
| 4463 | tif, module, |
| 4464 | "Ignoring %s because BitsPerSample=%" PRIu16 ">24", |
| 4465 | fip ? fip->field_name : "unknown tagname", |
| 4466 | tif->tif_dir.td_bitspersample); |
| 4467 | continue; |
| 4468 | } |
| 4469 | countpersample = (1U << tif->tif_dir.td_bitspersample); |
| 4470 | if ((dp->tdir_tag == TIFFTAG_TRANSFERFUNCTION) && |
| 4471 | (dp->tdir_count == (uint64_t)countpersample)) |
| 4472 | { |
| 4473 | countrequired = countpersample; |
| 4474 | incrementpersample = 0; |
| 4475 | } |
| 4476 | else |
| 4477 | { |
| 4478 | countrequired = 3 * countpersample; |
| 4479 | incrementpersample = countpersample; |
| 4480 | } |
| 4481 | if (dp->tdir_count != (uint64_t)countrequired) |
| 4482 | err = TIFFReadDirEntryErrCount; |
| 4483 | else |
| 4484 | err = TIFFReadDirEntryShortArray(tif, dp, &value); |
| 4485 | if (err != TIFFReadDirEntryErrOk) |
| 4486 | { |
| 4487 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
| 4488 | TIFFReadDirEntryOutputErr( |
| 4489 | tif, err, module, |
| 4490 | fip ? fip->field_name : "unknown tagname", 1); |
| 4491 | } |
| 4492 | else |
| 4493 | { |
| 4494 | TIFFSetField(tif, dp->tdir_tag, value, |
| 4495 | value + incrementpersample, |
| 4496 | value + 2 * incrementpersample); |
| 4497 | _TIFFfreeExt(tif, value); |
| 4498 | } |
| 4499 | } |
| 4500 | break; |
| 4501 | /* BEGIN REV 4.0 COMPATIBILITY */ |
| 4502 | case TIFFTAG_OSUBFILETYPE: |
| 4503 | { |
| 4504 | uint16_t valueo; |
| 4505 | uint32_t value; |
| 4506 | if (TIFFReadDirEntryShort(tif, dp, &valueo) == |
| 4507 | TIFFReadDirEntryErrOk) |
| 4508 | { |
| 4509 | switch (valueo) |
| 4510 | { |
| 4511 | case OFILETYPE_REDUCEDIMAGE: |
| 4512 | value = FILETYPE_REDUCEDIMAGE; |
| 4513 | break; |
| 4514 | case OFILETYPE_PAGE: |
| 4515 | value = FILETYPE_PAGE; |
| 4516 | break; |
| 4517 | default: |
| 4518 | value = 0; |
| 4519 | break; |
| 4520 | } |
| 4521 | if (value != 0) |
| 4522 | TIFFSetField(tif, TIFFTAG_SUBFILETYPE, value); |
| 4523 | } |
| 4524 | } |
| 4525 | break; |
| 4526 | /* END REV 4.0 COMPATIBILITY */ |
| 4527 | default: |
| 4528 | (void)TIFFFetchNormalTag(tif, dp, TRUE); |
| 4529 | break; |
| 4530 | } |
| 4531 | } /* -- if (!dp->tdir_ignore) */ |
| 4532 | } /* -- for-loop -- */ |
| 4533 | |
| 4534 | /* |
| 4535 | * OJPEG hack: |
| 4536 | * - If a) compression is OJPEG, and b) photometric tag is missing, |
| 4537 | * then we consistently find that photometric should be YCbCr |
| 4538 | * - If a) compression is OJPEG, and b) photometric tag says it's RGB, |
| 4539 | * then we consistently find that the buggy implementation of the |
| 4540 | * buggy compression scheme matches photometric YCbCr instead. |
| 4541 | * - If a) compression is OJPEG, and b) bitspersample tag is missing, |
| 4542 | * then we consistently find bitspersample should be 8. |
| 4543 | * - If a) compression is OJPEG, b) samplesperpixel tag is missing, |
| 4544 | * and c) photometric is RGB or YCbCr, then we consistently find |
| 4545 | * samplesperpixel should be 3 |
| 4546 | * - If a) compression is OJPEG, b) samplesperpixel tag is missing, |
| 4547 | * and c) photometric is MINISWHITE or MINISBLACK, then we consistently |
| 4548 | * find samplesperpixel should be 3 |
| 4549 | */ |
| 4550 | if (tif->tif_dir.td_compression == COMPRESSION_OJPEG) |
| 4551 | { |
| 4552 | if (!TIFFFieldSet(tif, FIELD_PHOTOMETRIC)) |
| 4553 | { |
| 4554 | TIFFWarningExtR( |
| 4555 | tif, module, |
| 4556 | "Photometric tag is missing, assuming data is YCbCr"); |
| 4557 | if (!TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR)) |
| 4558 | goto bad; |
| 4559 | } |
| 4560 | else if (tif->tif_dir.td_photometric == PHOTOMETRIC_RGB) |
| 4561 | { |
| 4562 | tif->tif_dir.td_photometric = PHOTOMETRIC_YCBCR; |
| 4563 | TIFFWarningExtR(tif, module, |
| 4564 | "Photometric tag value assumed incorrect, " |
| 4565 | "assuming data is YCbCr instead of RGB"); |
| 4566 | } |
| 4567 | if (!TIFFFieldSet(tif, FIELD_BITSPERSAMPLE)) |
| 4568 | { |
| 4569 | TIFFWarningExtR( |
| 4570 | tif, module, |
| 4571 | "BitsPerSample tag is missing, assuming 8 bits per sample"); |
| 4572 | if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8)) |
| 4573 | goto bad; |
| 4574 | } |
| 4575 | if (!TIFFFieldSet(tif, FIELD_SAMPLESPERPIXEL)) |
| 4576 | { |
| 4577 | if (tif->tif_dir.td_photometric == PHOTOMETRIC_RGB) |
| 4578 | { |
| 4579 | TIFFWarningExtR(tif, module, |
| 4580 | "SamplesPerPixel tag is missing, " |
| 4581 | "assuming correct SamplesPerPixel value is 3"); |
| 4582 | if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3)) |
| 4583 | goto bad; |
| 4584 | } |
| 4585 | if (tif->tif_dir.td_photometric == PHOTOMETRIC_YCBCR) |
| 4586 | { |
| 4587 | TIFFWarningExtR(tif, module, |
| 4588 | "SamplesPerPixel tag is missing, " |
| 4589 | "applying correct SamplesPerPixel value of 3"); |
| 4590 | if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3)) |
| 4591 | goto bad; |
| 4592 | } |
| 4593 | else if ((tif->tif_dir.td_photometric == PHOTOMETRIC_MINISWHITE) || |
| 4594 | (tif->tif_dir.td_photometric == PHOTOMETRIC_MINISBLACK)) |
| 4595 | { |
| 4596 | /* |
| 4597 | * SamplesPerPixel tag is missing, but is not required |
| 4598 | * by spec. Assume correct SamplesPerPixel value of 1. |
| 4599 | */ |
| 4600 | if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1)) |
| 4601 | goto bad; |
| 4602 | } |
| 4603 | } |
| 4604 | } |
| 4605 | |
| 4606 | /* |
| 4607 | * Setup appropriate structures (by strip or by tile) |
| 4608 | * We do that only after the above OJPEG hack which alters SamplesPerPixel |
| 4609 | * and thus influences the number of strips in the separate planarconfig. |
| 4610 | */ |
| 4611 | if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) |
| 4612 | { |
| 4613 | tif->tif_dir.td_nstrips = TIFFNumberOfStrips(tif); |
| 4614 | tif->tif_dir.td_tilewidth = tif->tif_dir.td_imagewidth; |
| 4615 | tif->tif_dir.td_tilelength = tif->tif_dir.td_rowsperstrip; |
| 4616 | tif->tif_dir.td_tiledepth = tif->tif_dir.td_imagedepth; |
| 4617 | tif->tif_flags &= ~TIFF_ISTILED; |
| 4618 | } |
| 4619 | else |
| 4620 | { |
| 4621 | tif->tif_dir.td_nstrips = TIFFNumberOfTiles(tif); |
| 4622 | tif->tif_flags |= TIFF_ISTILED; |
| 4623 | } |
| 4624 | if (!tif->tif_dir.td_nstrips) |
| 4625 | { |
| 4626 | TIFFErrorExtR(tif, module, "Cannot handle zero number of %s", |
| 4627 | isTiled(tif) ? "tiles" : "strips"); |
| 4628 | goto bad; |
| 4629 | } |
| 4630 | if (tif->tif_dir.td_nstrips > INT_MAX) |
| 4631 | { |
| 4632 | TIFFErrorExt(tif->tif_clientdata, module, |
| 4633 | "Cannot handle %u number of %s", |
| 4634 | tif->tif_dir.td_nstrips, |
| 4635 | isTiled(tif) ? "tiles" : "strips"); |
| 4636 | goto bad; |
| 4637 | } |
| 4638 | tif->tif_dir.td_stripsperimage = tif->tif_dir.td_nstrips; |
| 4639 | if (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE) |
| 4640 | tif->tif_dir.td_stripsperimage /= tif->tif_dir.td_samplesperpixel; |
| 4641 | if (!TIFFFieldSet(tif, FIELD_STRIPOFFSETS)) |
| 4642 | { |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 4643 | #ifdef OJPEG_SUPPORT |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4644 | if ((tif->tif_dir.td_compression == COMPRESSION_OJPEG) && |
| 4645 | (isTiled(tif) == 0) && (tif->tif_dir.td_nstrips == 1)) |
| 4646 | { |
| 4647 | /* |
| 4648 | * XXX: OJPEG hack. |
| 4649 | * If a) compression is OJPEG, b) it's not a tiled TIFF, |
| 4650 | * and c) the number of strips is 1, |
| 4651 | * then we tolerate the absence of stripoffsets tag, |
| 4652 | * because, presumably, all required data is in the |
| 4653 | * JpegInterchangeFormat stream. |
| 4654 | */ |
| 4655 | TIFFSetFieldBit(tif, FIELD_STRIPOFFSETS); |
| 4656 | } |
| 4657 | else |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 4658 | #endif |
| 4659 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4660 | MissingRequired(tif, isTiled(tif) ? "TileOffsets" : "StripOffsets"); |
| 4661 | goto bad; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4662 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4663 | } |
| 4664 | |
| 4665 | if (tif->tif_mode == O_RDWR && |
| 4666 | tif->tif_dir.td_stripoffset_entry.tdir_tag != 0 && |
| 4667 | tif->tif_dir.td_stripoffset_entry.tdir_count == 0 && |
| 4668 | tif->tif_dir.td_stripoffset_entry.tdir_type == 0 && |
| 4669 | tif->tif_dir.td_stripoffset_entry.tdir_offset.toff_long8 == 0 && |
| 4670 | tif->tif_dir.td_stripbytecount_entry.tdir_tag != 0 && |
| 4671 | tif->tif_dir.td_stripbytecount_entry.tdir_count == 0 && |
| 4672 | tif->tif_dir.td_stripbytecount_entry.tdir_type == 0 && |
| 4673 | tif->tif_dir.td_stripbytecount_entry.tdir_offset.toff_long8 == 0) |
| 4674 | { |
| 4675 | /* Directory typically created with TIFFDeferStrileArrayWriting() */ |
| 4676 | TIFFSetupStrips(tif); |
| 4677 | } |
| 4678 | else if (!(tif->tif_flags & TIFF_DEFERSTRILELOAD)) |
| 4679 | { |
| 4680 | if (tif->tif_dir.td_stripoffset_entry.tdir_tag != 0) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4681 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4682 | if (!TIFFFetchStripThing(tif, &(tif->tif_dir.td_stripoffset_entry), |
| 4683 | tif->tif_dir.td_nstrips, |
| 4684 | &tif->tif_dir.td_stripoffset_p)) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4685 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4686 | goto bad; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4687 | } |
| 4688 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4689 | if (tif->tif_dir.td_stripbytecount_entry.tdir_tag != 0) |
| 4690 | { |
| 4691 | if (!TIFFFetchStripThing( |
| 4692 | tif, &(tif->tif_dir.td_stripbytecount_entry), |
| 4693 | tif->tif_dir.td_nstrips, &tif->tif_dir.td_stripbytecount_p)) |
| 4694 | { |
| 4695 | goto bad; |
| 4696 | } |
| 4697 | } |
| 4698 | } |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4699 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4700 | /* |
| 4701 | * Make sure all non-color channels are extrasamples. |
| 4702 | * If it's not the case, define them as such. |
| 4703 | */ |
| 4704 | color_channels = _TIFFGetMaxColorChannels(tif->tif_dir.td_photometric); |
| 4705 | if (color_channels && |
| 4706 | tif->tif_dir.td_samplesperpixel - tif->tif_dir.td_extrasamples > |
| 4707 | color_channels) |
| 4708 | { |
| 4709 | uint16_t old_extrasamples; |
| 4710 | uint16_t *new_sampleinfo; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4711 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4712 | TIFFWarningExtR( |
| 4713 | tif, module, |
| 4714 | "Sum of Photometric type-related " |
| 4715 | "color channels and ExtraSamples doesn't match SamplesPerPixel. " |
| 4716 | "Defining non-color channels as ExtraSamples."); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4717 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4718 | old_extrasamples = tif->tif_dir.td_extrasamples; |
| 4719 | tif->tif_dir.td_extrasamples = |
| 4720 | (uint16_t)(tif->tif_dir.td_samplesperpixel - color_channels); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4721 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4722 | // sampleinfo should contain information relative to these new extra |
| 4723 | // samples |
| 4724 | new_sampleinfo = (uint16_t *)_TIFFcallocExt( |
| 4725 | tif, tif->tif_dir.td_extrasamples, sizeof(uint16_t)); |
| 4726 | if (!new_sampleinfo) |
| 4727 | { |
| 4728 | TIFFErrorExtR(tif, module, |
| 4729 | "Failed to allocate memory for " |
| 4730 | "temporary new sampleinfo array " |
| 4731 | "(%" PRIu16 " 16 bit elements)", |
| 4732 | tif->tif_dir.td_extrasamples); |
| 4733 | goto bad; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4734 | } |
| 4735 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4736 | if (old_extrasamples > 0) |
| 4737 | memcpy(new_sampleinfo, tif->tif_dir.td_sampleinfo, |
| 4738 | old_extrasamples * sizeof(uint16_t)); |
| 4739 | _TIFFsetShortArrayExt(tif, &tif->tif_dir.td_sampleinfo, new_sampleinfo, |
| 4740 | tif->tif_dir.td_extrasamples); |
| 4741 | _TIFFfreeExt(tif, new_sampleinfo); |
| 4742 | } |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4743 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4744 | /* |
| 4745 | * Verify Palette image has a Colormap. |
| 4746 | */ |
| 4747 | if (tif->tif_dir.td_photometric == PHOTOMETRIC_PALETTE && |
| 4748 | !TIFFFieldSet(tif, FIELD_COLORMAP)) |
| 4749 | { |
| 4750 | if (tif->tif_dir.td_bitspersample >= 8 && |
| 4751 | tif->tif_dir.td_samplesperpixel == 3) |
| 4752 | tif->tif_dir.td_photometric = PHOTOMETRIC_RGB; |
| 4753 | else if (tif->tif_dir.td_bitspersample >= 8) |
| 4754 | tif->tif_dir.td_photometric = PHOTOMETRIC_MINISBLACK; |
| 4755 | else |
| 4756 | { |
| 4757 | MissingRequired(tif, "Colormap"); |
| 4758 | goto bad; |
| 4759 | } |
| 4760 | } |
| 4761 | /* |
| 4762 | * OJPEG hack: |
| 4763 | * We do no further messing with strip/tile offsets/bytecounts in OJPEG |
| 4764 | * TIFFs |
| 4765 | */ |
| 4766 | if (tif->tif_dir.td_compression != COMPRESSION_OJPEG) |
| 4767 | { |
| 4768 | /* |
| 4769 | * Attempt to deal with a missing StripByteCounts tag. |
| 4770 | */ |
| 4771 | if (!TIFFFieldSet(tif, FIELD_STRIPBYTECOUNTS)) |
| 4772 | { |
| 4773 | /* |
| 4774 | * Some manufacturers violate the spec by not giving |
| 4775 | * the size of the strips. In this case, assume there |
| 4776 | * is one uncompressed strip of data. |
| 4777 | */ |
| 4778 | if ((tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG && |
| 4779 | tif->tif_dir.td_nstrips > 1) || |
| 4780 | (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE && |
| 4781 | tif->tif_dir.td_nstrips != |
| 4782 | (uint32_t)tif->tif_dir.td_samplesperpixel)) |
| 4783 | { |
| 4784 | MissingRequired(tif, "StripByteCounts"); |
| 4785 | goto bad; |
| 4786 | } |
| 4787 | TIFFWarningExtR( |
| 4788 | tif, module, |
| 4789 | "TIFF directory is missing required " |
| 4790 | "\"StripByteCounts\" field, calculating from imagelength"); |
| 4791 | if (EstimateStripByteCounts(tif, dir, dircount) < 0) |
| 4792 | goto bad; |
| 4793 | } |
| 4794 | else if (tif->tif_dir.td_nstrips == 1 && |
| 4795 | !(tif->tif_flags & TIFF_ISTILED) && ByteCountLooksBad(tif)) |
| 4796 | { |
| 4797 | /* |
| 4798 | * XXX: Plexus (and others) sometimes give a value of |
| 4799 | * zero for a tag when they don't know what the |
| 4800 | * correct value is! Try and handle the simple case |
| 4801 | * of estimating the size of a one strip image. |
| 4802 | */ |
| 4803 | TIFFWarningExtR(tif, module, |
| 4804 | "Bogus \"StripByteCounts\" field, ignoring and " |
| 4805 | "calculating from imagelength"); |
| 4806 | if (EstimateStripByteCounts(tif, dir, dircount) < 0) |
| 4807 | goto bad; |
| 4808 | } |
| 4809 | else if (!(tif->tif_flags & TIFF_DEFERSTRILELOAD) && |
| 4810 | tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG && |
| 4811 | tif->tif_dir.td_nstrips > 2 && |
| 4812 | tif->tif_dir.td_compression == COMPRESSION_NONE && |
| 4813 | TIFFGetStrileByteCount(tif, 0) != |
| 4814 | TIFFGetStrileByteCount(tif, 1) && |
| 4815 | TIFFGetStrileByteCount(tif, 0) != 0 && |
| 4816 | TIFFGetStrileByteCount(tif, 1) != 0) |
| 4817 | { |
| 4818 | /* |
| 4819 | * XXX: Some vendors fill StripByteCount array with |
| 4820 | * absolutely wrong values (it can be equal to |
| 4821 | * StripOffset array, for example). Catch this case |
| 4822 | * here. |
| 4823 | * |
| 4824 | * We avoid this check if deferring strile loading |
| 4825 | * as it would always force us to load the strip/tile |
| 4826 | * information. |
| 4827 | */ |
| 4828 | TIFFWarningExtR(tif, module, |
| 4829 | "Wrong \"StripByteCounts\" field, ignoring and " |
| 4830 | "calculating from imagelength"); |
| 4831 | if (EstimateStripByteCounts(tif, dir, dircount) < 0) |
| 4832 | goto bad; |
| 4833 | } |
| 4834 | } |
| 4835 | if (dir) |
| 4836 | { |
| 4837 | _TIFFfreeExt(tif, dir); |
| 4838 | dir = NULL; |
| 4839 | } |
| 4840 | if (!TIFFFieldSet(tif, FIELD_MAXSAMPLEVALUE)) |
| 4841 | { |
| 4842 | if (tif->tif_dir.td_bitspersample >= 16) |
| 4843 | tif->tif_dir.td_maxsamplevalue = 0xFFFF; |
| 4844 | else |
| 4845 | tif->tif_dir.td_maxsamplevalue = |
| 4846 | (uint16_t)((1L << tif->tif_dir.td_bitspersample) - 1); |
| 4847 | } |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4848 | |
| 4849 | #ifdef STRIPBYTECOUNTSORTED_UNUSED |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4850 | /* |
| 4851 | * XXX: We can optimize checking for the strip bounds using the sorted |
| 4852 | * bytecounts array. See also comments for TIFFAppendToStrip() |
| 4853 | * function in tif_write.c. |
| 4854 | */ |
| 4855 | if (!(tif->tif_flags & TIFF_DEFERSTRILELOAD) && tif->tif_dir.td_nstrips > 1) |
| 4856 | { |
| 4857 | uint32_t strip; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4858 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4859 | tif->tif_dir.td_stripbytecountsorted = 1; |
| 4860 | for (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) |
| 4861 | { |
| 4862 | if (TIFFGetStrileOffset(tif, strip - 1) > |
| 4863 | TIFFGetStrileOffset(tif, strip)) |
| 4864 | { |
| 4865 | tif->tif_dir.td_stripbytecountsorted = 0; |
| 4866 | break; |
| 4867 | } |
| 4868 | } |
| 4869 | } |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4870 | #endif |
| 4871 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4872 | /* |
| 4873 | * An opportunity for compression mode dependent tag fixup |
| 4874 | */ |
| 4875 | (*tif->tif_fixuptags)(tif); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4876 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4877 | /* |
| 4878 | * Some manufacturers make life difficult by writing |
| 4879 | * large amounts of uncompressed data as a single strip. |
| 4880 | * This is contrary to the recommendations of the spec. |
| 4881 | * The following makes an attempt at breaking such images |
| 4882 | * into strips closer to the recommended 8k bytes. A |
| 4883 | * side effect, however, is that the RowsPerStrip tag |
| 4884 | * value may be changed. |
| 4885 | */ |
| 4886 | if ((tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG) && |
| 4887 | (tif->tif_dir.td_nstrips == 1) && |
| 4888 | (tif->tif_dir.td_compression == COMPRESSION_NONE) && |
| 4889 | ((tif->tif_flags & (TIFF_STRIPCHOP | TIFF_ISTILED)) == TIFF_STRIPCHOP)) |
| 4890 | { |
| 4891 | ChopUpSingleUncompressedStrip(tif); |
| 4892 | } |
| 4893 | |
| 4894 | /* There are also uncompressed striped files with strips larger than */ |
| 4895 | /* 2 GB, which make them unfriendly with a lot of code. If possible, */ |
| 4896 | /* try to expose smaller "virtual" strips. */ |
| 4897 | if (tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG && |
| 4898 | tif->tif_dir.td_compression == COMPRESSION_NONE && |
| 4899 | (tif->tif_flags & (TIFF_STRIPCHOP | TIFF_ISTILED)) == TIFF_STRIPCHOP && |
| 4900 | TIFFStripSize64(tif) > 0x7FFFFFFFUL) |
| 4901 | { |
| 4902 | TryChopUpUncompressedBigTiff(tif); |
| 4903 | } |
| 4904 | |
| 4905 | /* |
| 4906 | * Clear the dirty directory flag. |
| 4907 | */ |
| 4908 | tif->tif_flags &= ~TIFF_DIRTYDIRECT; |
| 4909 | tif->tif_flags &= ~TIFF_DIRTYSTRIP; |
| 4910 | |
| 4911 | /* |
| 4912 | * Reinitialize i/o since we are starting on a new directory. |
| 4913 | */ |
| 4914 | tif->tif_row = (uint32_t)-1; |
| 4915 | tif->tif_curstrip = (uint32_t)-1; |
| 4916 | tif->tif_col = (uint32_t)-1; |
| 4917 | tif->tif_curtile = (uint32_t)-1; |
| 4918 | tif->tif_tilesize = (tmsize_t)-1; |
| 4919 | |
| 4920 | tif->tif_scanlinesize = TIFFScanlineSize(tif); |
| 4921 | if (!tif->tif_scanlinesize) |
| 4922 | { |
| 4923 | TIFFErrorExtR(tif, module, "Cannot handle zero scanline size"); |
| 4924 | return (0); |
| 4925 | } |
| 4926 | |
| 4927 | if (isTiled(tif)) |
| 4928 | { |
| 4929 | tif->tif_tilesize = TIFFTileSize(tif); |
| 4930 | if (!tif->tif_tilesize) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4931 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4932 | TIFFErrorExtR(tif, module, "Cannot handle zero tile size"); |
| 4933 | return (0); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4934 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4935 | } |
| 4936 | else |
| 4937 | { |
| 4938 | if (!TIFFStripSize(tif)) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4939 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4940 | TIFFErrorExtR(tif, module, "Cannot handle zero strip size"); |
| 4941 | return (0); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 4942 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4943 | } |
| 4944 | return (1); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4945 | bad: |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4946 | if (dir) |
| 4947 | _TIFFfreeExt(tif, dir); |
| 4948 | return (0); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4949 | } |
| 4950 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4951 | static void TIFFReadDirectoryCheckOrder(TIFF *tif, TIFFDirEntry *dir, |
| 4952 | uint16_t dircount) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4953 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4954 | static const char module[] = "TIFFReadDirectoryCheckOrder"; |
| 4955 | uint16_t m; |
| 4956 | uint16_t n; |
| 4957 | TIFFDirEntry *o; |
| 4958 | m = 0; |
| 4959 | for (n = 0, o = dir; n < dircount; n++, o++) |
| 4960 | { |
| 4961 | if (o->tdir_tag < m) |
| 4962 | { |
| 4963 | TIFFWarningExtR(tif, module, |
| 4964 | "Invalid TIFF directory; tags are not sorted in " |
| 4965 | "ascending order"); |
| 4966 | break; |
| 4967 | } |
| 4968 | m = o->tdir_tag + 1; |
| 4969 | } |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4970 | } |
| 4971 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4972 | static TIFFDirEntry *TIFFReadDirectoryFindEntry(TIFF *tif, TIFFDirEntry *dir, |
| 4973 | uint16_t dircount, |
| 4974 | uint16_t tagid) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4975 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4976 | TIFFDirEntry *m; |
| 4977 | uint16_t n; |
| 4978 | (void)tif; |
| 4979 | for (m = dir, n = 0; n < dircount; m++, n++) |
| 4980 | { |
| 4981 | if (m->tdir_tag == tagid) |
| 4982 | return (m); |
| 4983 | } |
| 4984 | return (0); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4985 | } |
| 4986 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4987 | static void TIFFReadDirectoryFindFieldInfo(TIFF *tif, uint16_t tagid, |
| 4988 | uint32_t *fii) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 4989 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 4990 | int32_t ma, mb, mc; |
| 4991 | ma = -1; |
| 4992 | mc = (int32_t)tif->tif_nfields; |
| 4993 | while (1) |
| 4994 | { |
| 4995 | if (ma + 1 == mc) |
| 4996 | { |
| 4997 | *fii = FAILED_FII; |
| 4998 | return; |
| 4999 | } |
| 5000 | mb = (ma + mc) / 2; |
| 5001 | if (tif->tif_fields[mb]->field_tag == (uint32_t)tagid) |
| 5002 | break; |
| 5003 | if (tif->tif_fields[mb]->field_tag < (uint32_t)tagid) |
| 5004 | ma = mb; |
| 5005 | else |
| 5006 | mc = mb; |
| 5007 | } |
| 5008 | while (1) |
| 5009 | { |
| 5010 | if (mb == 0) |
| 5011 | break; |
| 5012 | if (tif->tif_fields[mb - 1]->field_tag != (uint32_t)tagid) |
| 5013 | break; |
| 5014 | mb--; |
| 5015 | } |
| 5016 | *fii = mb; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5017 | } |
| 5018 | |
| 5019 | /* |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 5020 | * Read custom directory from the arbitrary offset. |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5021 | * The code is very similar to TIFFReadDirectory(). |
| 5022 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5023 | int TIFFReadCustomDirectory(TIFF *tif, toff_t diroff, |
| 5024 | const TIFFFieldArray *infoarray) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5025 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5026 | static const char module[] = "TIFFReadCustomDirectory"; |
| 5027 | TIFFDirEntry *dir; |
| 5028 | uint16_t dircount; |
| 5029 | TIFFDirEntry *dp; |
| 5030 | uint16_t di; |
| 5031 | const TIFFField *fip; |
| 5032 | uint32_t fii; |
| 5033 | (*tif->tif_cleanup)(tif); /* cleanup any previous compression state */ |
| 5034 | _TIFFSetupFields(tif, infoarray); |
| 5035 | dircount = TIFFFetchDirectory(tif, diroff, &dir, NULL); |
| 5036 | if (!dircount) |
| 5037 | { |
| 5038 | TIFFErrorExtR(tif, module, |
| 5039 | "Failed to read custom directory at offset %" PRIu64, |
| 5040 | diroff); |
| 5041 | return 0; |
| 5042 | } |
| 5043 | TIFFFreeDirectory(tif); |
| 5044 | _TIFFmemset(&tif->tif_dir, 0, sizeof(TIFFDirectory)); |
| 5045 | TIFFReadDirectoryCheckOrder(tif, dir, dircount); |
| 5046 | for (di = 0, dp = dir; di < dircount; di++, dp++) |
| 5047 | { |
| 5048 | TIFFReadDirectoryFindFieldInfo(tif, dp->tdir_tag, &fii); |
| 5049 | if (fii == FAILED_FII) |
| 5050 | { |
| 5051 | TIFFWarningExtR(tif, module, |
| 5052 | "Unknown field with tag %" PRIu16 " (0x%" PRIx16 |
| 5053 | ") encountered", |
| 5054 | dp->tdir_tag, dp->tdir_tag); |
| 5055 | if (!_TIFFMergeFields( |
| 5056 | tif, |
| 5057 | _TIFFCreateAnonField(tif, dp->tdir_tag, |
| 5058 | (TIFFDataType)dp->tdir_type), |
| 5059 | 1)) |
| 5060 | { |
| 5061 | TIFFWarningExtR(tif, module, |
| 5062 | "Registering anonymous field with tag %" PRIu16 |
| 5063 | " (0x%" PRIx16 ") failed", |
| 5064 | dp->tdir_tag, dp->tdir_tag); |
| 5065 | dp->tdir_ignore = TRUE; |
| 5066 | } |
| 5067 | else |
| 5068 | { |
| 5069 | TIFFReadDirectoryFindFieldInfo(tif, dp->tdir_tag, &fii); |
| 5070 | assert(fii != FAILED_FII); |
| 5071 | } |
| 5072 | } |
| 5073 | if (!dp->tdir_ignore) |
| 5074 | { |
| 5075 | fip = tif->tif_fields[fii]; |
| 5076 | if (fip->field_bit == FIELD_IGNORE) |
| 5077 | dp->tdir_ignore = TRUE; |
| 5078 | else |
| 5079 | { |
| 5080 | /* check data type */ |
| 5081 | while ((fip->field_type != TIFF_ANY) && |
| 5082 | (fip->field_type != dp->tdir_type)) |
| 5083 | { |
| 5084 | fii++; |
| 5085 | if ((fii == tif->tif_nfields) || |
| 5086 | (tif->tif_fields[fii]->field_tag != |
| 5087 | (uint32_t)dp->tdir_tag)) |
| 5088 | { |
| 5089 | fii = 0xFFFF; |
| 5090 | break; |
| 5091 | } |
| 5092 | fip = tif->tif_fields[fii]; |
| 5093 | } |
| 5094 | if (fii == 0xFFFF) |
| 5095 | { |
| 5096 | TIFFWarningExtR(tif, module, |
| 5097 | "Wrong data type %" PRIu16 |
| 5098 | " for \"%s\"; tag ignored", |
| 5099 | dp->tdir_type, fip->field_name); |
| 5100 | dp->tdir_ignore = TRUE; |
| 5101 | } |
| 5102 | else |
| 5103 | { |
| 5104 | /* check count if known in advance */ |
| 5105 | if ((fip->field_readcount != TIFF_VARIABLE) && |
| 5106 | (fip->field_readcount != TIFF_VARIABLE2)) |
| 5107 | { |
| 5108 | uint32_t expected; |
| 5109 | if (fip->field_readcount == TIFF_SPP) |
| 5110 | expected = |
| 5111 | (uint32_t)tif->tif_dir.td_samplesperpixel; |
| 5112 | else |
| 5113 | expected = (uint32_t)fip->field_readcount; |
| 5114 | if (!CheckDirCount(tif, dp, expected)) |
| 5115 | dp->tdir_ignore = TRUE; |
| 5116 | } |
| 5117 | } |
| 5118 | } |
| 5119 | if (!dp->tdir_ignore) |
| 5120 | { |
| 5121 | switch (dp->tdir_tag) |
| 5122 | { |
| 5123 | case EXIFTAG_SUBJECTDISTANCE: |
| 5124 | if (!TIFFFieldIsAnonymous(fip)) |
| 5125 | { |
| 5126 | /* should only be called on a Exif directory */ |
| 5127 | /* when exifFields[] is active */ |
| 5128 | (void)TIFFFetchSubjectDistance(tif, dp); |
| 5129 | } |
| 5130 | else |
| 5131 | { |
| 5132 | (void)TIFFFetchNormalTag(tif, dp, TRUE); |
| 5133 | } |
| 5134 | break; |
| 5135 | default: |
| 5136 | (void)TIFFFetchNormalTag(tif, dp, TRUE); |
| 5137 | break; |
| 5138 | } |
| 5139 | } /*-- if (!dp->tdir_ignore) */ |
| 5140 | } |
| 5141 | } |
| 5142 | if (dir) |
| 5143 | _TIFFfreeExt(tif, dir); |
| 5144 | return 1; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5145 | } |
| 5146 | |
| 5147 | /* |
| 5148 | * EXIF is important special case of custom IFD, so we have a special |
| 5149 | * function to read it. |
| 5150 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5151 | int TIFFReadEXIFDirectory(TIFF *tif, toff_t diroff) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5152 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5153 | const TIFFFieldArray *exifFieldArray; |
| 5154 | exifFieldArray = _TIFFGetExifFields(); |
| 5155 | return TIFFReadCustomDirectory(tif, diroff, exifFieldArray); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5156 | } |
| 5157 | |
| 5158 | /* |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5159 | *--: EXIF-GPS custom directory reading as another special case of custom IFD. |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5160 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5161 | int TIFFReadGPSDirectory(TIFF *tif, toff_t diroff) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5162 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5163 | const TIFFFieldArray *gpsFieldArray; |
| 5164 | gpsFieldArray = _TIFFGetGpsFields(); |
| 5165 | return TIFFReadCustomDirectory(tif, diroff, gpsFieldArray); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5166 | } |
| 5167 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5168 | static int EstimateStripByteCounts(TIFF *tif, TIFFDirEntry *dir, |
| 5169 | uint16_t dircount) |
| 5170 | { |
| 5171 | static const char module[] = "EstimateStripByteCounts"; |
| 5172 | |
| 5173 | TIFFDirEntry *dp; |
| 5174 | TIFFDirectory *td = &tif->tif_dir; |
| 5175 | uint32_t strip; |
| 5176 | |
| 5177 | /* Do not try to load stripbytecount as we will compute it */ |
| 5178 | if (!_TIFFFillStrilesInternal(tif, 0)) |
| 5179 | return -1; |
| 5180 | |
| 5181 | if (td->td_stripbytecount_p) |
| 5182 | _TIFFfreeExt(tif, td->td_stripbytecount_p); |
| 5183 | td->td_stripbytecount_p = (uint64_t *)_TIFFCheckMalloc( |
| 5184 | tif, td->td_nstrips, sizeof(uint64_t), "for \"StripByteCounts\" array"); |
| 5185 | if (td->td_stripbytecount_p == NULL) |
| 5186 | return -1; |
| 5187 | |
| 5188 | if (td->td_compression != COMPRESSION_NONE) |
| 5189 | { |
| 5190 | uint64_t space; |
| 5191 | uint64_t filesize; |
| 5192 | uint16_t n; |
| 5193 | filesize = TIFFGetFileSize(tif); |
| 5194 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 5195 | space = sizeof(TIFFHeaderClassic) + 2 + dircount * 12 + 4; |
| 5196 | else |
| 5197 | space = sizeof(TIFFHeaderBig) + 8 + dircount * 20 + 8; |
| 5198 | /* calculate amount of space used by indirect values */ |
| 5199 | for (dp = dir, n = dircount; n > 0; n--, dp++) |
| 5200 | { |
| 5201 | uint32_t typewidth; |
| 5202 | uint64_t datasize; |
| 5203 | typewidth = TIFFDataWidth((TIFFDataType)dp->tdir_type); |
| 5204 | if (typewidth == 0) |
| 5205 | { |
| 5206 | TIFFErrorExtR( |
| 5207 | tif, module, |
| 5208 | "Cannot determine size of unknown tag type %" PRIu16, |
| 5209 | dp->tdir_type); |
| 5210 | return -1; |
| 5211 | } |
| 5212 | if (dp->tdir_count > UINT64_MAX / typewidth) |
| 5213 | return -1; |
| 5214 | datasize = (uint64_t)typewidth * dp->tdir_count; |
| 5215 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 5216 | { |
| 5217 | if (datasize <= 4) |
| 5218 | datasize = 0; |
| 5219 | } |
| 5220 | else |
| 5221 | { |
| 5222 | if (datasize <= 8) |
| 5223 | datasize = 0; |
| 5224 | } |
| 5225 | if (space > UINT64_MAX - datasize) |
| 5226 | return -1; |
| 5227 | space += datasize; |
| 5228 | } |
| 5229 | if (filesize < space) |
| 5230 | /* we should perhaps return in error ? */ |
| 5231 | space = filesize; |
| 5232 | else |
| 5233 | space = filesize - space; |
| 5234 | if (td->td_planarconfig == PLANARCONFIG_SEPARATE) |
| 5235 | space /= td->td_samplesperpixel; |
| 5236 | for (strip = 0; strip < td->td_nstrips; strip++) |
| 5237 | td->td_stripbytecount_p[strip] = space; |
| 5238 | /* |
| 5239 | * This gross hack handles the case were the offset to |
| 5240 | * the last strip is past the place where we think the strip |
| 5241 | * should begin. Since a strip of data must be contiguous, |
| 5242 | * it's safe to assume that we've overestimated the amount |
| 5243 | * of data in the strip and trim this number back accordingly. |
| 5244 | */ |
| 5245 | strip--; |
| 5246 | if (td->td_stripoffset_p[strip] > |
| 5247 | UINT64_MAX - td->td_stripbytecount_p[strip]) |
| 5248 | return -1; |
| 5249 | if (td->td_stripoffset_p[strip] + td->td_stripbytecount_p[strip] > |
| 5250 | filesize) |
| 5251 | { |
| 5252 | if (td->td_stripoffset_p[strip] >= filesize) |
| 5253 | { |
| 5254 | /* Not sure what we should in that case... */ |
| 5255 | td->td_stripbytecount_p[strip] = 0; |
| 5256 | } |
| 5257 | else |
| 5258 | { |
| 5259 | td->td_stripbytecount_p[strip] = |
| 5260 | filesize - td->td_stripoffset_p[strip]; |
| 5261 | } |
| 5262 | } |
| 5263 | } |
| 5264 | else if (isTiled(tif)) |
| 5265 | { |
| 5266 | uint64_t bytespertile = TIFFTileSize64(tif); |
| 5267 | |
| 5268 | for (strip = 0; strip < td->td_nstrips; strip++) |
| 5269 | td->td_stripbytecount_p[strip] = bytespertile; |
| 5270 | } |
| 5271 | else |
| 5272 | { |
| 5273 | uint64_t rowbytes = TIFFScanlineSize64(tif); |
| 5274 | uint32_t rowsperstrip = td->td_imagelength / td->td_stripsperimage; |
| 5275 | for (strip = 0; strip < td->td_nstrips; strip++) |
| 5276 | { |
| 5277 | if (rowbytes > 0 && rowsperstrip > UINT64_MAX / rowbytes) |
| 5278 | return -1; |
| 5279 | td->td_stripbytecount_p[strip] = rowbytes * rowsperstrip; |
| 5280 | } |
| 5281 | } |
| 5282 | TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS); |
| 5283 | if (!TIFFFieldSet(tif, FIELD_ROWSPERSTRIP)) |
| 5284 | td->td_rowsperstrip = td->td_imagelength; |
| 5285 | return 1; |
| 5286 | } |
| 5287 | |
| 5288 | static void MissingRequired(TIFF *tif, const char *tagname) |
| 5289 | { |
| 5290 | static const char module[] = "MissingRequired"; |
| 5291 | |
| 5292 | TIFFErrorExtR(tif, module, |
| 5293 | "TIFF directory is missing required \"%s\" field", tagname); |
| 5294 | } |
| 5295 | |
| 5296 | static unsigned long hashFuncOffsetToNumber(const void *elt) |
| 5297 | { |
| 5298 | const TIFFOffsetAndDirNumber *offsetAndDirNumber = |
| 5299 | (const TIFFOffsetAndDirNumber *)elt; |
| 5300 | const uint32_t hash = (uint32_t)(offsetAndDirNumber->offset >> 32) ^ |
| 5301 | ((uint32_t)offsetAndDirNumber->offset & 0xFFFFFFFFU); |
| 5302 | return hash; |
| 5303 | } |
| 5304 | |
| 5305 | static bool equalFuncOffsetToNumber(const void *elt1, const void *elt2) |
| 5306 | { |
| 5307 | const TIFFOffsetAndDirNumber *offsetAndDirNumber1 = |
| 5308 | (const TIFFOffsetAndDirNumber *)elt1; |
| 5309 | const TIFFOffsetAndDirNumber *offsetAndDirNumber2 = |
| 5310 | (const TIFFOffsetAndDirNumber *)elt2; |
| 5311 | return offsetAndDirNumber1->offset == offsetAndDirNumber2->offset; |
| 5312 | } |
| 5313 | |
| 5314 | static unsigned long hashFuncNumberToOffset(const void *elt) |
| 5315 | { |
| 5316 | const TIFFOffsetAndDirNumber *offsetAndDirNumber = |
| 5317 | (const TIFFOffsetAndDirNumber *)elt; |
| 5318 | return offsetAndDirNumber->dirNumber; |
| 5319 | } |
| 5320 | |
| 5321 | static bool equalFuncNumberToOffset(const void *elt1, const void *elt2) |
| 5322 | { |
| 5323 | const TIFFOffsetAndDirNumber *offsetAndDirNumber1 = |
| 5324 | (const TIFFOffsetAndDirNumber *)elt1; |
| 5325 | const TIFFOffsetAndDirNumber *offsetAndDirNumber2 = |
| 5326 | (const TIFFOffsetAndDirNumber *)elt2; |
| 5327 | return offsetAndDirNumber1->dirNumber == offsetAndDirNumber2->dirNumber; |
| 5328 | } |
| 5329 | |
| 5330 | /* |
| 5331 | * Check the directory number and offset against the list of already seen |
| 5332 | * directory numbers and offsets. This is a trick to prevent IFD looping. |
| 5333 | * The one can create TIFF file with looped directory pointers. We will |
| 5334 | * maintain a list of already seen directories and check every IFD offset |
| 5335 | * and its IFD number against that list. However, the offset of an IFD number |
| 5336 | * can change - e.g. when writing updates to file. |
| 5337 | * Returns 1 if all is ok; 0 if last directory or IFD loop is encountered, |
| 5338 | * or an error has occurred. |
| 5339 | */ |
| 5340 | int _TIFFCheckDirNumberAndOffset(TIFF *tif, tdir_t dirn, uint64_t diroff) |
| 5341 | { |
| 5342 | if (diroff == 0) /* no more directories */ |
| 5343 | return 0; |
| 5344 | |
| 5345 | if (tif->tif_map_dir_offset_to_number == NULL) |
| 5346 | { |
| 5347 | tif->tif_map_dir_offset_to_number = TIFFHashSetNew( |
| 5348 | hashFuncOffsetToNumber, equalFuncOffsetToNumber, free); |
| 5349 | if (tif->tif_map_dir_offset_to_number == NULL) |
| 5350 | { |
| 5351 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
| 5352 | "Not enough memory"); |
| 5353 | return 1; |
| 5354 | } |
| 5355 | } |
| 5356 | |
| 5357 | if (tif->tif_map_dir_number_to_offset == NULL) |
| 5358 | { |
| 5359 | /* No free callback for this map, as it shares the same items as |
| 5360 | * tif->tif_map_dir_offset_to_number. */ |
| 5361 | tif->tif_map_dir_number_to_offset = TIFFHashSetNew( |
| 5362 | hashFuncNumberToOffset, equalFuncNumberToOffset, NULL); |
| 5363 | if (tif->tif_map_dir_number_to_offset == NULL) |
| 5364 | { |
| 5365 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
| 5366 | "Not enough memory"); |
| 5367 | return 1; |
| 5368 | } |
| 5369 | } |
| 5370 | |
| 5371 | /* Check if offset is already in the list: |
| 5372 | * - yes: check, if offset is at the same IFD number - if not, it is an IFD |
| 5373 | * loop |
| 5374 | * - no: add to list or update offset at that IFD number |
| 5375 | */ |
| 5376 | TIFFOffsetAndDirNumber entry; |
| 5377 | entry.offset = diroff; |
| 5378 | entry.dirNumber = dirn; |
| 5379 | |
| 5380 | TIFFOffsetAndDirNumber *foundEntry = |
| 5381 | (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
| 5382 | tif->tif_map_dir_offset_to_number, &entry); |
| 5383 | if (foundEntry) |
| 5384 | { |
| 5385 | if (foundEntry->dirNumber == dirn) |
| 5386 | { |
| 5387 | return 1; |
| 5388 | } |
| 5389 | else |
| 5390 | { |
| 5391 | TIFFWarningExtR(tif, "_TIFFCheckDirNumberAndOffset", |
| 5392 | "TIFF directory %d has IFD looping to directory %u " |
| 5393 | "at offset 0x%" PRIx64 " (%" PRIu64 ")", |
| 5394 | (int)dirn - 1, foundEntry->dirNumber, diroff, |
| 5395 | diroff); |
| 5396 | return 0; |
| 5397 | } |
| 5398 | } |
| 5399 | |
| 5400 | /* Check if offset of an IFD has been changed and update offset of that IFD |
| 5401 | * number. */ |
| 5402 | foundEntry = (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
| 5403 | tif->tif_map_dir_number_to_offset, &entry); |
| 5404 | if (foundEntry) |
| 5405 | { |
| 5406 | if (foundEntry->offset != diroff) |
| 5407 | { |
| 5408 | TIFFOffsetAndDirNumber entryOld; |
| 5409 | entryOld.offset = foundEntry->offset; |
| 5410 | entryOld.dirNumber = dirn; |
| 5411 | /* We must remove first from tif_map_dir_number_to_offset as the */ |
| 5412 | /* entry is owned (and thus freed) by */ |
| 5413 | /* tif_map_dir_offset_to_number */ |
| 5414 | TIFFOffsetAndDirNumber *foundEntryOld = |
| 5415 | (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
| 5416 | tif->tif_map_dir_number_to_offset, &entryOld); |
| 5417 | if (foundEntryOld) |
| 5418 | { |
| 5419 | TIFFHashSetRemove(tif->tif_map_dir_number_to_offset, |
| 5420 | foundEntryOld); |
| 5421 | } |
| 5422 | foundEntryOld = (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
| 5423 | tif->tif_map_dir_offset_to_number, &entryOld); |
| 5424 | if (foundEntryOld) |
| 5425 | { |
| 5426 | TIFFHashSetRemove(tif->tif_map_dir_offset_to_number, |
| 5427 | foundEntryOld); |
| 5428 | } |
| 5429 | |
| 5430 | TIFFOffsetAndDirNumber *entryPtr = (TIFFOffsetAndDirNumber *)malloc( |
| 5431 | sizeof(TIFFOffsetAndDirNumber)); |
| 5432 | if (entryPtr == NULL) |
| 5433 | { |
| 5434 | return 0; |
| 5435 | } |
| 5436 | |
| 5437 | /* Add IFD offset and dirn to IFD directory list */ |
| 5438 | *entryPtr = entry; |
| 5439 | |
| 5440 | if (!TIFFHashSetInsert(tif->tif_map_dir_offset_to_number, entryPtr)) |
| 5441 | { |
| 5442 | TIFFErrorExtR( |
| 5443 | tif, "_TIFFCheckDirNumberAndOffset", |
| 5444 | "Insertion in tif_map_dir_offset_to_number failed"); |
| 5445 | return 0; |
| 5446 | } |
| 5447 | if (!TIFFHashSetInsert(tif->tif_map_dir_number_to_offset, entryPtr)) |
| 5448 | { |
| 5449 | TIFFErrorExtR( |
| 5450 | tif, "_TIFFCheckDirNumberAndOffset", |
| 5451 | "Insertion in tif_map_dir_number_to_offset failed"); |
| 5452 | return 0; |
| 5453 | } |
| 5454 | } |
| 5455 | return 1; |
| 5456 | } |
| 5457 | |
| 5458 | /* Arbitrary (hopefully big enough) limit */ |
| 5459 | if (tif->tif_dirnumber >= TIFF_MAX_DIR_COUNT) |
| 5460 | { |
| 5461 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
| 5462 | "Cannot handle more than %u TIFF directories", |
| 5463 | TIFF_MAX_DIR_COUNT); |
| 5464 | return 0; |
| 5465 | } |
| 5466 | |
| 5467 | TIFFOffsetAndDirNumber *entryPtr = |
| 5468 | (TIFFOffsetAndDirNumber *)malloc(sizeof(TIFFOffsetAndDirNumber)); |
| 5469 | if (entryPtr == NULL) |
| 5470 | { |
| 5471 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
| 5472 | "malloc(sizeof(TIFFOffsetAndDirNumber)) failed"); |
| 5473 | return 0; |
| 5474 | } |
| 5475 | |
| 5476 | /* Add IFD offset and dirn to IFD directory list */ |
| 5477 | *entryPtr = entry; |
| 5478 | |
| 5479 | if (!TIFFHashSetInsert(tif->tif_map_dir_offset_to_number, entryPtr)) |
| 5480 | { |
| 5481 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
| 5482 | "Insertion in tif_map_dir_offset_to_number failed"); |
| 5483 | return 0; |
| 5484 | } |
| 5485 | if (!TIFFHashSetInsert(tif->tif_map_dir_number_to_offset, entryPtr)) |
| 5486 | { |
| 5487 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
| 5488 | "Insertion in tif_map_dir_number_to_offset failed"); |
| 5489 | return 0; |
| 5490 | } |
| 5491 | |
| 5492 | tif->tif_dirnumber++; |
| 5493 | |
| 5494 | return 1; |
| 5495 | } /* --- _TIFFCheckDirNumberAndOffset() ---*/ |
| 5496 | |
| 5497 | /* |
| 5498 | * Retrieve the matching IFD directory number of a given IFD offset |
| 5499 | * from the list of directories already seen. |
| 5500 | * Returns 1 if the offset was in the list and the directory number |
| 5501 | * can be returned. |
| 5502 | * Otherwise returns 0 or if an error occurred. |
| 5503 | */ |
| 5504 | int _TIFFGetDirNumberFromOffset(TIFF *tif, uint64_t diroff, tdir_t *dirn) |
| 5505 | { |
| 5506 | if (diroff == 0) /* no more directories */ |
| 5507 | return 0; |
| 5508 | if (tif->tif_dirnumber >= TIFF_MAX_DIR_COUNT) |
| 5509 | { |
| 5510 | TIFFErrorExtR(tif, "_TIFFGetDirNumberFromOffset", |
| 5511 | "Cannot handle more than %u TIFF directories", |
| 5512 | TIFF_MAX_DIR_COUNT); |
| 5513 | return 0; |
| 5514 | } |
| 5515 | |
| 5516 | /* Check if offset is already in the list and return matching directory |
| 5517 | * number. Otherwise update IFD list using TIFFNumberOfDirectories() and |
| 5518 | * search again in IFD list. |
| 5519 | */ |
| 5520 | if (tif->tif_map_dir_offset_to_number == NULL) |
| 5521 | return 0; |
| 5522 | TIFFOffsetAndDirNumber entry; |
| 5523 | entry.offset = diroff; |
| 5524 | entry.dirNumber = 0; /* not used */ |
| 5525 | |
| 5526 | TIFFOffsetAndDirNumber *foundEntry = |
| 5527 | (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
| 5528 | tif->tif_map_dir_offset_to_number, &entry); |
| 5529 | if (foundEntry) |
| 5530 | { |
| 5531 | *dirn = foundEntry->dirNumber; |
| 5532 | return 1; |
| 5533 | } |
| 5534 | |
| 5535 | TIFFNumberOfDirectories(tif); |
| 5536 | |
| 5537 | foundEntry = (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
| 5538 | tif->tif_map_dir_offset_to_number, &entry); |
| 5539 | if (foundEntry) |
| 5540 | { |
| 5541 | *dirn = foundEntry->dirNumber; |
| 5542 | return 1; |
| 5543 | } |
| 5544 | |
| 5545 | return 0; |
| 5546 | } /*--- _TIFFGetDirNumberFromOffset() ---*/ |
| 5547 | |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5548 | /* |
| 5549 | * Check the count field of a directory entry against a known value. The |
| 5550 | * caller is expected to skip/ignore the tag if there is a mismatch. |
| 5551 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5552 | static int CheckDirCount(TIFF *tif, TIFFDirEntry *dir, uint32_t count) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5553 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5554 | if ((uint64_t)count > dir->tdir_count) |
| 5555 | { |
| 5556 | const TIFFField *fip = TIFFFieldWithTag(tif, dir->tdir_tag); |
| 5557 | TIFFWarningExtR(tif, tif->tif_name, |
| 5558 | "incorrect count for field \"%s\" (%" PRIu64 |
| 5559 | ", expecting %" PRIu32 "); tag ignored", |
| 5560 | fip ? fip->field_name : "unknown tagname", |
| 5561 | dir->tdir_count, count); |
| 5562 | return (0); |
| 5563 | } |
| 5564 | else if ((uint64_t)count < dir->tdir_count) |
| 5565 | { |
| 5566 | const TIFFField *fip = TIFFFieldWithTag(tif, dir->tdir_tag); |
| 5567 | TIFFWarningExtR(tif, tif->tif_name, |
| 5568 | "incorrect count for field \"%s\" (%" PRIu64 |
| 5569 | ", expecting %" PRIu32 "); tag trimmed", |
| 5570 | fip ? fip->field_name : "unknown tagname", |
| 5571 | dir->tdir_count, count); |
| 5572 | dir->tdir_count = count; |
| 5573 | return (1); |
| 5574 | } |
| 5575 | return (1); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5576 | } |
| 5577 | |
| 5578 | /* |
| 5579 | * Read IFD structure from the specified offset. If the pointer to |
| 5580 | * nextdiroff variable has been specified, read it too. Function returns a |
| 5581 | * number of fields in the directory or 0 if failed. |
| 5582 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5583 | static uint16_t TIFFFetchDirectory(TIFF *tif, uint64_t diroff, |
| 5584 | TIFFDirEntry **pdir, uint64_t *nextdiroff) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5585 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5586 | static const char module[] = "TIFFFetchDirectory"; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5587 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5588 | void *origdir; |
| 5589 | uint16_t dircount16; |
| 5590 | uint32_t dirsize; |
| 5591 | TIFFDirEntry *dir; |
| 5592 | uint8_t *ma; |
| 5593 | TIFFDirEntry *mb; |
| 5594 | uint16_t n; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5595 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5596 | assert(pdir); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5597 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5598 | tif->tif_diroff = diroff; |
| 5599 | if (nextdiroff) |
| 5600 | *nextdiroff = 0; |
| 5601 | if (!isMapped(tif)) |
| 5602 | { |
| 5603 | if (!SeekOK(tif, tif->tif_diroff)) |
| 5604 | { |
| 5605 | TIFFErrorExtR(tif, module, |
| 5606 | "%s: Seek error accessing TIFF directory", |
| 5607 | tif->tif_name); |
| 5608 | return 0; |
| 5609 | } |
| 5610 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 5611 | { |
| 5612 | if (!ReadOK(tif, &dircount16, sizeof(uint16_t))) |
| 5613 | { |
| 5614 | TIFFErrorExtR(tif, module, |
| 5615 | "%s: Can not read TIFF directory count", |
| 5616 | tif->tif_name); |
| 5617 | return 0; |
| 5618 | } |
| 5619 | if (tif->tif_flags & TIFF_SWAB) |
| 5620 | TIFFSwabShort(&dircount16); |
| 5621 | if (dircount16 > 4096) |
| 5622 | { |
| 5623 | TIFFErrorExtR(tif, module, |
| 5624 | "Sanity check on directory count failed, this is " |
| 5625 | "probably not a valid IFD offset"); |
| 5626 | return 0; |
| 5627 | } |
| 5628 | dirsize = 12; |
| 5629 | } |
| 5630 | else |
| 5631 | { |
| 5632 | uint64_t dircount64; |
| 5633 | if (!ReadOK(tif, &dircount64, sizeof(uint64_t))) |
| 5634 | { |
| 5635 | TIFFErrorExtR(tif, module, |
| 5636 | "%s: Can not read TIFF directory count", |
| 5637 | tif->tif_name); |
| 5638 | return 0; |
| 5639 | } |
| 5640 | if (tif->tif_flags & TIFF_SWAB) |
| 5641 | TIFFSwabLong8(&dircount64); |
| 5642 | if (dircount64 > 4096) |
| 5643 | { |
| 5644 | TIFFErrorExtR(tif, module, |
| 5645 | "Sanity check on directory count failed, this is " |
| 5646 | "probably not a valid IFD offset"); |
| 5647 | return 0; |
| 5648 | } |
| 5649 | dircount16 = (uint16_t)dircount64; |
| 5650 | dirsize = 20; |
| 5651 | } |
| 5652 | origdir = _TIFFCheckMalloc(tif, dircount16, dirsize, |
| 5653 | "to read TIFF directory"); |
| 5654 | if (origdir == NULL) |
| 5655 | return 0; |
| 5656 | if (!ReadOK(tif, origdir, (tmsize_t)(dircount16 * dirsize))) |
| 5657 | { |
| 5658 | TIFFErrorExtR(tif, module, "%.100s: Can not read TIFF directory", |
| 5659 | tif->tif_name); |
| 5660 | _TIFFfreeExt(tif, origdir); |
| 5661 | return 0; |
| 5662 | } |
| 5663 | /* |
| 5664 | * Read offset to next directory for sequential scans if |
| 5665 | * needed. |
| 5666 | */ |
| 5667 | if (nextdiroff) |
| 5668 | { |
| 5669 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 5670 | { |
| 5671 | uint32_t nextdiroff32; |
| 5672 | if (!ReadOK(tif, &nextdiroff32, sizeof(uint32_t))) |
| 5673 | nextdiroff32 = 0; |
| 5674 | if (tif->tif_flags & TIFF_SWAB) |
| 5675 | TIFFSwabLong(&nextdiroff32); |
| 5676 | *nextdiroff = nextdiroff32; |
| 5677 | } |
| 5678 | else |
| 5679 | { |
| 5680 | if (!ReadOK(tif, nextdiroff, sizeof(uint64_t))) |
| 5681 | *nextdiroff = 0; |
| 5682 | if (tif->tif_flags & TIFF_SWAB) |
| 5683 | TIFFSwabLong8(nextdiroff); |
| 5684 | } |
| 5685 | } |
| 5686 | } |
| 5687 | else |
| 5688 | { |
| 5689 | tmsize_t m; |
| 5690 | tmsize_t off; |
| 5691 | if (tif->tif_diroff > (uint64_t)INT64_MAX) |
| 5692 | { |
| 5693 | TIFFErrorExtR(tif, module, "Can not read TIFF directory count"); |
| 5694 | return (0); |
| 5695 | } |
| 5696 | off = (tmsize_t)tif->tif_diroff; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5697 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5698 | /* |
| 5699 | * Check for integer overflow when validating the dir_off, |
| 5700 | * otherwise a very high offset may cause an OOB read and |
| 5701 | * crash the client. Make two comparisons instead of |
| 5702 | * |
| 5703 | * off + sizeof(uint16_t) > tif->tif_size |
| 5704 | * |
| 5705 | * to avoid overflow. |
| 5706 | */ |
| 5707 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 5708 | { |
| 5709 | m = off + sizeof(uint16_t); |
| 5710 | if ((m < off) || (m < (tmsize_t)sizeof(uint16_t)) || |
| 5711 | (m > tif->tif_size)) |
| 5712 | { |
| 5713 | TIFFErrorExtR(tif, module, "Can not read TIFF directory count"); |
| 5714 | return 0; |
| 5715 | } |
| 5716 | else |
| 5717 | { |
| 5718 | _TIFFmemcpy(&dircount16, tif->tif_base + off, sizeof(uint16_t)); |
| 5719 | } |
| 5720 | off += sizeof(uint16_t); |
| 5721 | if (tif->tif_flags & TIFF_SWAB) |
| 5722 | TIFFSwabShort(&dircount16); |
| 5723 | if (dircount16 > 4096) |
| 5724 | { |
| 5725 | TIFFErrorExtR(tif, module, |
| 5726 | "Sanity check on directory count failed, this is " |
| 5727 | "probably not a valid IFD offset"); |
| 5728 | return 0; |
| 5729 | } |
| 5730 | dirsize = 12; |
| 5731 | } |
| 5732 | else |
| 5733 | { |
| 5734 | uint64_t dircount64; |
| 5735 | m = off + sizeof(uint64_t); |
| 5736 | if ((m < off) || (m < (tmsize_t)sizeof(uint64_t)) || |
| 5737 | (m > tif->tif_size)) |
| 5738 | { |
| 5739 | TIFFErrorExtR(tif, module, "Can not read TIFF directory count"); |
| 5740 | return 0; |
| 5741 | } |
| 5742 | else |
| 5743 | { |
| 5744 | _TIFFmemcpy(&dircount64, tif->tif_base + off, sizeof(uint64_t)); |
| 5745 | } |
| 5746 | off += sizeof(uint64_t); |
| 5747 | if (tif->tif_flags & TIFF_SWAB) |
| 5748 | TIFFSwabLong8(&dircount64); |
| 5749 | if (dircount64 > 4096) |
| 5750 | { |
| 5751 | TIFFErrorExtR(tif, module, |
| 5752 | "Sanity check on directory count failed, this is " |
| 5753 | "probably not a valid IFD offset"); |
| 5754 | return 0; |
| 5755 | } |
| 5756 | dircount16 = (uint16_t)dircount64; |
| 5757 | dirsize = 20; |
| 5758 | } |
| 5759 | if (dircount16 == 0) |
| 5760 | { |
| 5761 | TIFFErrorExtR(tif, module, |
| 5762 | "Sanity check on directory count failed, zero tag " |
| 5763 | "directories not supported"); |
| 5764 | return 0; |
| 5765 | } |
| 5766 | origdir = _TIFFCheckMalloc(tif, dircount16, dirsize, |
| 5767 | "to read TIFF directory"); |
| 5768 | if (origdir == NULL) |
| 5769 | return 0; |
| 5770 | m = off + dircount16 * dirsize; |
| 5771 | if ((m < off) || (m < (tmsize_t)(dircount16 * dirsize)) || |
| 5772 | (m > tif->tif_size)) |
| 5773 | { |
| 5774 | TIFFErrorExtR(tif, module, "Can not read TIFF directory"); |
| 5775 | _TIFFfreeExt(tif, origdir); |
| 5776 | return 0; |
| 5777 | } |
| 5778 | else |
| 5779 | { |
| 5780 | _TIFFmemcpy(origdir, tif->tif_base + off, dircount16 * dirsize); |
| 5781 | } |
| 5782 | if (nextdiroff) |
| 5783 | { |
| 5784 | off += dircount16 * dirsize; |
| 5785 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 5786 | { |
| 5787 | uint32_t nextdiroff32; |
| 5788 | m = off + sizeof(uint32_t); |
| 5789 | if ((m < off) || (m < (tmsize_t)sizeof(uint32_t)) || |
| 5790 | (m > tif->tif_size)) |
| 5791 | nextdiroff32 = 0; |
| 5792 | else |
| 5793 | _TIFFmemcpy(&nextdiroff32, tif->tif_base + off, |
| 5794 | sizeof(uint32_t)); |
| 5795 | if (tif->tif_flags & TIFF_SWAB) |
| 5796 | TIFFSwabLong(&nextdiroff32); |
| 5797 | *nextdiroff = nextdiroff32; |
| 5798 | } |
| 5799 | else |
| 5800 | { |
| 5801 | m = off + sizeof(uint64_t); |
| 5802 | if ((m < off) || (m < (tmsize_t)sizeof(uint64_t)) || |
| 5803 | (m > tif->tif_size)) |
| 5804 | *nextdiroff = 0; |
| 5805 | else |
| 5806 | _TIFFmemcpy(nextdiroff, tif->tif_base + off, |
| 5807 | sizeof(uint64_t)); |
| 5808 | if (tif->tif_flags & TIFF_SWAB) |
| 5809 | TIFFSwabLong8(nextdiroff); |
| 5810 | } |
| 5811 | } |
| 5812 | } |
| 5813 | dir = (TIFFDirEntry *)_TIFFCheckMalloc( |
| 5814 | tif, dircount16, sizeof(TIFFDirEntry), "to read TIFF directory"); |
| 5815 | if (dir == 0) |
| 5816 | { |
| 5817 | _TIFFfreeExt(tif, origdir); |
| 5818 | return 0; |
| 5819 | } |
| 5820 | ma = (uint8_t *)origdir; |
| 5821 | mb = dir; |
| 5822 | for (n = 0; n < dircount16; n++) |
| 5823 | { |
| 5824 | mb->tdir_ignore = FALSE; |
| 5825 | if (tif->tif_flags & TIFF_SWAB) |
| 5826 | TIFFSwabShort((uint16_t *)ma); |
| 5827 | mb->tdir_tag = *(uint16_t *)ma; |
| 5828 | ma += sizeof(uint16_t); |
| 5829 | if (tif->tif_flags & TIFF_SWAB) |
| 5830 | TIFFSwabShort((uint16_t *)ma); |
| 5831 | mb->tdir_type = *(uint16_t *)ma; |
| 5832 | ma += sizeof(uint16_t); |
| 5833 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 5834 | { |
| 5835 | if (tif->tif_flags & TIFF_SWAB) |
| 5836 | TIFFSwabLong((uint32_t *)ma); |
| 5837 | mb->tdir_count = (uint64_t)(*(uint32_t *)ma); |
| 5838 | ma += sizeof(uint32_t); |
| 5839 | mb->tdir_offset.toff_long8 = 0; |
| 5840 | *(uint32_t *)(&mb->tdir_offset) = *(uint32_t *)ma; |
| 5841 | ma += sizeof(uint32_t); |
| 5842 | } |
| 5843 | else |
| 5844 | { |
| 5845 | if (tif->tif_flags & TIFF_SWAB) |
| 5846 | TIFFSwabLong8((uint64_t *)ma); |
| 5847 | mb->tdir_count = TIFFReadUInt64(ma); |
| 5848 | ma += sizeof(uint64_t); |
| 5849 | mb->tdir_offset.toff_long8 = TIFFReadUInt64(ma); |
| 5850 | ma += sizeof(uint64_t); |
| 5851 | } |
| 5852 | mb++; |
| 5853 | } |
| 5854 | _TIFFfreeExt(tif, origdir); |
| 5855 | *pdir = dir; |
| 5856 | return dircount16; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5857 | } |
| 5858 | |
| 5859 | /* |
| 5860 | * Fetch a tag that is not handled by special case code. |
| 5861 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5862 | static int TIFFFetchNormalTag(TIFF *tif, TIFFDirEntry *dp, int recover) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5863 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5864 | static const char module[] = "TIFFFetchNormalTag"; |
| 5865 | enum TIFFReadDirEntryErr err; |
| 5866 | uint32_t fii; |
| 5867 | const TIFFField *fip = NULL; |
| 5868 | TIFFReadDirectoryFindFieldInfo(tif, dp->tdir_tag, &fii); |
| 5869 | if (fii == FAILED_FII) |
| 5870 | { |
| 5871 | TIFFErrorExtR(tif, "TIFFFetchNormalTag", |
| 5872 | "No definition found for tag %" PRIu16, dp->tdir_tag); |
| 5873 | return 0; |
| 5874 | } |
| 5875 | fip = tif->tif_fields[fii]; |
| 5876 | assert(fip != NULL); /* should not happen */ |
| 5877 | assert(fip->set_field_type != |
| 5878 | TIFF_SETGET_OTHER); /* if so, we shouldn't arrive here but deal with |
| 5879 | this in specialized code */ |
| 5880 | assert(fip->set_field_type != |
| 5881 | TIFF_SETGET_INT); /* if so, we shouldn't arrive here as this is only |
| 5882 | the case for pseudo-tags */ |
| 5883 | err = TIFFReadDirEntryErrOk; |
| 5884 | switch (fip->set_field_type) |
| 5885 | { |
| 5886 | case TIFF_SETGET_UNDEFINED: |
| 5887 | TIFFErrorExtR( |
| 5888 | tif, "TIFFFetchNormalTag", |
| 5889 | "Defined set_field_type of custom tag %u (%s) is " |
| 5890 | "TIFF_SETGET_UNDEFINED and thus tag is not read from file", |
| 5891 | fip->field_tag, fip->field_name); |
| 5892 | break; |
| 5893 | case TIFF_SETGET_ASCII: |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5894 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5895 | uint8_t *data; |
| 5896 | assert(fip->field_passcount == 0); |
| 5897 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
| 5898 | if (err == TIFFReadDirEntryErrOk) |
| 5899 | { |
| 5900 | size_t mb = 0; |
| 5901 | int n; |
| 5902 | if (data != NULL) |
| 5903 | { |
| 5904 | if (dp->tdir_count > 0 && data[dp->tdir_count - 1] == 0) |
| 5905 | { |
| 5906 | /* optimization: if data is known to be 0 terminated, we |
| 5907 | * can use strlen() */ |
| 5908 | mb = strlen((const char *)data); |
| 5909 | } |
| 5910 | else |
| 5911 | { |
| 5912 | /* general case. equivalent to non-portable */ |
| 5913 | /* mb = strnlen((const char*)data, |
| 5914 | * (uint32_t)dp->tdir_count); */ |
| 5915 | uint8_t *ma = data; |
| 5916 | while (mb < (uint32_t)dp->tdir_count) |
| 5917 | { |
| 5918 | if (*ma == 0) |
| 5919 | break; |
| 5920 | ma++; |
| 5921 | mb++; |
| 5922 | } |
| 5923 | } |
| 5924 | } |
| 5925 | if (mb + 1 < (uint32_t)dp->tdir_count) |
| 5926 | TIFFWarningExtR( |
| 5927 | tif, module, |
| 5928 | "ASCII value for tag \"%s\" contains null byte in " |
| 5929 | "value; value incorrectly truncated during reading due " |
| 5930 | "to implementation limitations", |
| 5931 | fip->field_name); |
| 5932 | else if (mb + 1 > (uint32_t)dp->tdir_count) |
| 5933 | { |
| 5934 | uint8_t *o; |
| 5935 | TIFFWarningExtR( |
| 5936 | tif, module, |
| 5937 | "ASCII value for tag \"%s\" does not end in null byte", |
| 5938 | fip->field_name); |
| 5939 | /* TIFFReadDirEntryArrayWithLimit() ensures this can't be |
| 5940 | * larger than MAX_SIZE_TAG_DATA */ |
| 5941 | assert((uint32_t)dp->tdir_count + 1 == dp->tdir_count + 1); |
| 5942 | o = _TIFFmallocExt(tif, (uint32_t)dp->tdir_count + 1); |
| 5943 | if (o == NULL) |
| 5944 | { |
| 5945 | if (data != NULL) |
| 5946 | _TIFFfreeExt(tif, data); |
| 5947 | return (0); |
| 5948 | } |
| 5949 | if (dp->tdir_count > 0) |
| 5950 | { |
| 5951 | _TIFFmemcpy(o, data, (uint32_t)dp->tdir_count); |
| 5952 | } |
| 5953 | o[(uint32_t)dp->tdir_count] = 0; |
| 5954 | if (data != 0) |
| 5955 | _TIFFfreeExt(tif, data); |
| 5956 | data = o; |
| 5957 | } |
| 5958 | n = TIFFSetField(tif, dp->tdir_tag, data); |
| 5959 | if (data != 0) |
| 5960 | _TIFFfreeExt(tif, data); |
| 5961 | if (!n) |
| 5962 | return (0); |
| 5963 | } |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 5964 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 5965 | break; |
| 5966 | case TIFF_SETGET_UINT8: |
| 5967 | { |
| 5968 | uint8_t data = 0; |
| 5969 | assert(fip->field_readcount == 1); |
| 5970 | assert(fip->field_passcount == 0); |
| 5971 | err = TIFFReadDirEntryByte(tif, dp, &data); |
| 5972 | if (err == TIFFReadDirEntryErrOk) |
| 5973 | { |
| 5974 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
| 5975 | return (0); |
| 5976 | } |
| 5977 | } |
| 5978 | break; |
| 5979 | case TIFF_SETGET_SINT8: |
| 5980 | { |
| 5981 | int8_t data = 0; |
| 5982 | assert(fip->field_readcount == 1); |
| 5983 | assert(fip->field_passcount == 0); |
| 5984 | err = TIFFReadDirEntrySbyte(tif, dp, &data); |
| 5985 | if (err == TIFFReadDirEntryErrOk) |
| 5986 | { |
| 5987 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
| 5988 | return (0); |
| 5989 | } |
| 5990 | } |
| 5991 | break; |
| 5992 | case TIFF_SETGET_UINT16: |
| 5993 | { |
| 5994 | uint16_t data; |
| 5995 | assert(fip->field_readcount == 1); |
| 5996 | assert(fip->field_passcount == 0); |
| 5997 | err = TIFFReadDirEntryShort(tif, dp, &data); |
| 5998 | if (err == TIFFReadDirEntryErrOk) |
| 5999 | { |
| 6000 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
| 6001 | return (0); |
| 6002 | } |
| 6003 | } |
| 6004 | break; |
| 6005 | case TIFF_SETGET_SINT16: |
| 6006 | { |
| 6007 | int16_t data; |
| 6008 | assert(fip->field_readcount == 1); |
| 6009 | assert(fip->field_passcount == 0); |
| 6010 | err = TIFFReadDirEntrySshort(tif, dp, &data); |
| 6011 | if (err == TIFFReadDirEntryErrOk) |
| 6012 | { |
| 6013 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
| 6014 | return (0); |
| 6015 | } |
| 6016 | } |
| 6017 | break; |
| 6018 | case TIFF_SETGET_UINT32: |
| 6019 | { |
| 6020 | uint32_t data; |
| 6021 | assert(fip->field_readcount == 1); |
| 6022 | assert(fip->field_passcount == 0); |
| 6023 | err = TIFFReadDirEntryLong(tif, dp, &data); |
| 6024 | if (err == TIFFReadDirEntryErrOk) |
| 6025 | { |
| 6026 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
| 6027 | return (0); |
| 6028 | } |
| 6029 | } |
| 6030 | break; |
| 6031 | case TIFF_SETGET_SINT32: |
| 6032 | { |
| 6033 | int32_t data; |
| 6034 | assert(fip->field_readcount == 1); |
| 6035 | assert(fip->field_passcount == 0); |
| 6036 | err = TIFFReadDirEntrySlong(tif, dp, &data); |
| 6037 | if (err == TIFFReadDirEntryErrOk) |
| 6038 | { |
| 6039 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
| 6040 | return (0); |
| 6041 | } |
| 6042 | } |
| 6043 | break; |
| 6044 | case TIFF_SETGET_UINT64: |
| 6045 | { |
| 6046 | uint64_t data; |
| 6047 | assert(fip->field_readcount == 1); |
| 6048 | assert(fip->field_passcount == 0); |
| 6049 | err = TIFFReadDirEntryLong8(tif, dp, &data); |
| 6050 | if (err == TIFFReadDirEntryErrOk) |
| 6051 | { |
| 6052 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
| 6053 | return (0); |
| 6054 | } |
| 6055 | } |
| 6056 | break; |
| 6057 | case TIFF_SETGET_SINT64: |
| 6058 | { |
| 6059 | int64_t data; |
| 6060 | assert(fip->field_readcount == 1); |
| 6061 | assert(fip->field_passcount == 0); |
| 6062 | err = TIFFReadDirEntrySlong8(tif, dp, &data); |
| 6063 | if (err == TIFFReadDirEntryErrOk) |
| 6064 | { |
| 6065 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
| 6066 | return (0); |
| 6067 | } |
| 6068 | } |
| 6069 | break; |
| 6070 | case TIFF_SETGET_FLOAT: |
| 6071 | { |
| 6072 | float data; |
| 6073 | assert(fip->field_readcount == 1); |
| 6074 | assert(fip->field_passcount == 0); |
| 6075 | err = TIFFReadDirEntryFloat(tif, dp, &data); |
| 6076 | if (err == TIFFReadDirEntryErrOk) |
| 6077 | { |
| 6078 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
| 6079 | return (0); |
| 6080 | } |
| 6081 | } |
| 6082 | break; |
| 6083 | case TIFF_SETGET_DOUBLE: |
| 6084 | { |
| 6085 | double data; |
| 6086 | assert(fip->field_readcount == 1); |
| 6087 | assert(fip->field_passcount == 0); |
| 6088 | err = TIFFReadDirEntryDouble(tif, dp, &data); |
| 6089 | if (err == TIFFReadDirEntryErrOk) |
| 6090 | { |
| 6091 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
| 6092 | return (0); |
| 6093 | } |
| 6094 | } |
| 6095 | break; |
| 6096 | case TIFF_SETGET_IFD8: |
| 6097 | { |
| 6098 | uint64_t data; |
| 6099 | assert(fip->field_readcount == 1); |
| 6100 | assert(fip->field_passcount == 0); |
| 6101 | err = TIFFReadDirEntryIfd8(tif, dp, &data); |
| 6102 | if (err == TIFFReadDirEntryErrOk) |
| 6103 | { |
| 6104 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
| 6105 | return (0); |
| 6106 | } |
| 6107 | } |
| 6108 | break; |
| 6109 | case TIFF_SETGET_UINT16_PAIR: |
| 6110 | { |
| 6111 | uint16_t *data; |
| 6112 | assert(fip->field_readcount == 2); |
| 6113 | assert(fip->field_passcount == 0); |
| 6114 | if (dp->tdir_count != 2) |
| 6115 | { |
| 6116 | TIFFWarningExtR(tif, module, |
| 6117 | "incorrect count for field \"%s\", expected 2, " |
| 6118 | "got %" PRIu64, |
| 6119 | fip->field_name, dp->tdir_count); |
| 6120 | return (0); |
| 6121 | } |
| 6122 | err = TIFFReadDirEntryShortArray(tif, dp, &data); |
| 6123 | if (err == TIFFReadDirEntryErrOk) |
| 6124 | { |
| 6125 | int m; |
| 6126 | assert(data); /* avoid CLang static Analyzer false positive */ |
| 6127 | m = TIFFSetField(tif, dp->tdir_tag, data[0], data[1]); |
| 6128 | _TIFFfreeExt(tif, data); |
| 6129 | if (!m) |
| 6130 | return (0); |
| 6131 | } |
| 6132 | } |
| 6133 | break; |
| 6134 | case TIFF_SETGET_C0_UINT8: |
| 6135 | { |
| 6136 | uint8_t *data; |
| 6137 | assert(fip->field_readcount >= 1); |
| 6138 | assert(fip->field_passcount == 0); |
| 6139 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
| 6140 | { |
| 6141 | TIFFWarningExtR(tif, module, |
| 6142 | "incorrect count for field \"%s\", expected " |
| 6143 | "%d, got %" PRIu64, |
| 6144 | fip->field_name, (int)fip->field_readcount, |
| 6145 | dp->tdir_count); |
| 6146 | return (0); |
| 6147 | } |
| 6148 | else |
| 6149 | { |
| 6150 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
| 6151 | if (err == TIFFReadDirEntryErrOk) |
| 6152 | { |
| 6153 | int m; |
| 6154 | m = TIFFSetField(tif, dp->tdir_tag, data); |
| 6155 | if (data != 0) |
| 6156 | _TIFFfreeExt(tif, data); |
| 6157 | if (!m) |
| 6158 | return (0); |
| 6159 | } |
| 6160 | } |
| 6161 | } |
| 6162 | break; |
| 6163 | case TIFF_SETGET_C0_SINT8: |
| 6164 | { |
| 6165 | int8_t *data; |
| 6166 | assert(fip->field_readcount >= 1); |
| 6167 | assert(fip->field_passcount == 0); |
| 6168 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
| 6169 | { |
| 6170 | TIFFWarningExtR(tif, module, |
| 6171 | "incorrect count for field \"%s\", expected " |
| 6172 | "%d, got %" PRIu64, |
| 6173 | fip->field_name, (int)fip->field_readcount, |
| 6174 | dp->tdir_count); |
| 6175 | return (0); |
| 6176 | } |
| 6177 | else |
| 6178 | { |
| 6179 | err = TIFFReadDirEntrySbyteArray(tif, dp, &data); |
| 6180 | if (err == TIFFReadDirEntryErrOk) |
| 6181 | { |
| 6182 | int m; |
| 6183 | m = TIFFSetField(tif, dp->tdir_tag, data); |
| 6184 | if (data != 0) |
| 6185 | _TIFFfreeExt(tif, data); |
| 6186 | if (!m) |
| 6187 | return (0); |
| 6188 | } |
| 6189 | } |
| 6190 | } |
| 6191 | break; |
| 6192 | case TIFF_SETGET_C0_UINT16: |
| 6193 | { |
| 6194 | uint16_t *data; |
| 6195 | assert(fip->field_readcount >= 1); |
| 6196 | assert(fip->field_passcount == 0); |
| 6197 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
| 6198 | { |
| 6199 | TIFFWarningExtR(tif, module, |
| 6200 | "incorrect count for field \"%s\", expected " |
| 6201 | "%d, got %" PRIu64, |
| 6202 | fip->field_name, (int)fip->field_readcount, |
| 6203 | dp->tdir_count); |
| 6204 | return (0); |
| 6205 | } |
| 6206 | else |
| 6207 | { |
| 6208 | err = TIFFReadDirEntryShortArray(tif, dp, &data); |
| 6209 | if (err == TIFFReadDirEntryErrOk) |
| 6210 | { |
| 6211 | int m; |
| 6212 | m = TIFFSetField(tif, dp->tdir_tag, data); |
| 6213 | if (data != 0) |
| 6214 | _TIFFfreeExt(tif, data); |
| 6215 | if (!m) |
| 6216 | return (0); |
| 6217 | } |
| 6218 | } |
| 6219 | } |
| 6220 | break; |
| 6221 | case TIFF_SETGET_C0_SINT16: |
| 6222 | { |
| 6223 | int16_t *data; |
| 6224 | assert(fip->field_readcount >= 1); |
| 6225 | assert(fip->field_passcount == 0); |
| 6226 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
| 6227 | { |
| 6228 | TIFFWarningExtR(tif, module, |
| 6229 | "incorrect count for field \"%s\", expected " |
| 6230 | "%d, got %" PRIu64, |
| 6231 | fip->field_name, (int)fip->field_readcount, |
| 6232 | dp->tdir_count); |
| 6233 | return (0); |
| 6234 | } |
| 6235 | else |
| 6236 | { |
| 6237 | err = TIFFReadDirEntrySshortArray(tif, dp, &data); |
| 6238 | if (err == TIFFReadDirEntryErrOk) |
| 6239 | { |
| 6240 | int m; |
| 6241 | m = TIFFSetField(tif, dp->tdir_tag, data); |
| 6242 | if (data != 0) |
| 6243 | _TIFFfreeExt(tif, data); |
| 6244 | if (!m) |
| 6245 | return (0); |
| 6246 | } |
| 6247 | } |
| 6248 | } |
| 6249 | break; |
| 6250 | case TIFF_SETGET_C0_UINT32: |
| 6251 | { |
| 6252 | uint32_t *data; |
| 6253 | assert(fip->field_readcount >= 1); |
| 6254 | assert(fip->field_passcount == 0); |
| 6255 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
| 6256 | { |
| 6257 | TIFFWarningExtR(tif, module, |
| 6258 | "incorrect count for field \"%s\", expected " |
| 6259 | "%d, got %" PRIu64, |
| 6260 | fip->field_name, (int)fip->field_readcount, |
| 6261 | dp->tdir_count); |
| 6262 | return (0); |
| 6263 | } |
| 6264 | else |
| 6265 | { |
| 6266 | err = TIFFReadDirEntryLongArray(tif, dp, &data); |
| 6267 | if (err == TIFFReadDirEntryErrOk) |
| 6268 | { |
| 6269 | int m; |
| 6270 | m = TIFFSetField(tif, dp->tdir_tag, data); |
| 6271 | if (data != 0) |
| 6272 | _TIFFfreeExt(tif, data); |
| 6273 | if (!m) |
| 6274 | return (0); |
| 6275 | } |
| 6276 | } |
| 6277 | } |
| 6278 | break; |
| 6279 | case TIFF_SETGET_C0_SINT32: |
| 6280 | { |
| 6281 | int32_t *data; |
| 6282 | assert(fip->field_readcount >= 1); |
| 6283 | assert(fip->field_passcount == 0); |
| 6284 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
| 6285 | { |
| 6286 | TIFFWarningExtR(tif, module, |
| 6287 | "incorrect count for field \"%s\", expected " |
| 6288 | "%d, got %" PRIu64, |
| 6289 | fip->field_name, (int)fip->field_readcount, |
| 6290 | dp->tdir_count); |
| 6291 | return (0); |
| 6292 | } |
| 6293 | else |
| 6294 | { |
| 6295 | err = TIFFReadDirEntrySlongArray(tif, dp, &data); |
| 6296 | if (err == TIFFReadDirEntryErrOk) |
| 6297 | { |
| 6298 | int m; |
| 6299 | m = TIFFSetField(tif, dp->tdir_tag, data); |
| 6300 | if (data != 0) |
| 6301 | _TIFFfreeExt(tif, data); |
| 6302 | if (!m) |
| 6303 | return (0); |
| 6304 | } |
| 6305 | } |
| 6306 | } |
| 6307 | break; |
| 6308 | case TIFF_SETGET_C0_UINT64: |
| 6309 | { |
| 6310 | uint64_t *data; |
| 6311 | assert(fip->field_readcount >= 1); |
| 6312 | assert(fip->field_passcount == 0); |
| 6313 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
| 6314 | { |
| 6315 | TIFFWarningExtR(tif, module, |
| 6316 | "incorrect count for field \"%s\", expected " |
| 6317 | "%d, got %" PRIu64, |
| 6318 | fip->field_name, (int)fip->field_readcount, |
| 6319 | dp->tdir_count); |
| 6320 | return (0); |
| 6321 | } |
| 6322 | else |
| 6323 | { |
| 6324 | err = TIFFReadDirEntryLong8Array(tif, dp, &data); |
| 6325 | if (err == TIFFReadDirEntryErrOk) |
| 6326 | { |
| 6327 | int m; |
| 6328 | m = TIFFSetField(tif, dp->tdir_tag, data); |
| 6329 | if (data != 0) |
| 6330 | _TIFFfreeExt(tif, data); |
| 6331 | if (!m) |
| 6332 | return (0); |
| 6333 | } |
| 6334 | } |
| 6335 | } |
| 6336 | break; |
| 6337 | case TIFF_SETGET_C0_SINT64: |
| 6338 | { |
| 6339 | int64_t *data; |
| 6340 | assert(fip->field_readcount >= 1); |
| 6341 | assert(fip->field_passcount == 0); |
| 6342 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
| 6343 | { |
| 6344 | TIFFWarningExtR(tif, module, |
| 6345 | "incorrect count for field \"%s\", expected " |
| 6346 | "%d, got %" PRIu64, |
| 6347 | fip->field_name, (int)fip->field_readcount, |
| 6348 | dp->tdir_count); |
| 6349 | return (0); |
| 6350 | } |
| 6351 | else |
| 6352 | { |
| 6353 | err = TIFFReadDirEntrySlong8Array(tif, dp, &data); |
| 6354 | if (err == TIFFReadDirEntryErrOk) |
| 6355 | { |
| 6356 | int m; |
| 6357 | m = TIFFSetField(tif, dp->tdir_tag, data); |
| 6358 | if (data != 0) |
| 6359 | _TIFFfreeExt(tif, data); |
| 6360 | if (!m) |
| 6361 | return (0); |
| 6362 | } |
| 6363 | } |
| 6364 | } |
| 6365 | break; |
| 6366 | case TIFF_SETGET_C0_FLOAT: |
| 6367 | { |
| 6368 | float *data; |
| 6369 | assert(fip->field_readcount >= 1); |
| 6370 | assert(fip->field_passcount == 0); |
| 6371 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
| 6372 | { |
| 6373 | TIFFWarningExtR(tif, module, |
| 6374 | "incorrect count for field \"%s\", expected " |
| 6375 | "%d, got %" PRIu64, |
| 6376 | fip->field_name, (int)fip->field_readcount, |
| 6377 | dp->tdir_count); |
| 6378 | return (0); |
| 6379 | } |
| 6380 | else |
| 6381 | { |
| 6382 | err = TIFFReadDirEntryFloatArray(tif, dp, &data); |
| 6383 | if (err == TIFFReadDirEntryErrOk) |
| 6384 | { |
| 6385 | int m; |
| 6386 | m = TIFFSetField(tif, dp->tdir_tag, data); |
| 6387 | if (data != 0) |
| 6388 | _TIFFfreeExt(tif, data); |
| 6389 | if (!m) |
| 6390 | return (0); |
| 6391 | } |
| 6392 | } |
| 6393 | } |
| 6394 | break; |
| 6395 | /*--: Rational2Double: Extend for Double Arrays and Rational-Arrays read |
| 6396 | * into Double-Arrays. */ |
| 6397 | case TIFF_SETGET_C0_DOUBLE: |
| 6398 | { |
| 6399 | double *data; |
| 6400 | assert(fip->field_readcount >= 1); |
| 6401 | assert(fip->field_passcount == 0); |
| 6402 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
| 6403 | { |
| 6404 | TIFFWarningExtR(tif, module, |
| 6405 | "incorrect count for field \"%s\", expected " |
| 6406 | "%d, got %" PRIu64, |
| 6407 | fip->field_name, (int)fip->field_readcount, |
| 6408 | dp->tdir_count); |
| 6409 | return (0); |
| 6410 | } |
| 6411 | else |
| 6412 | { |
| 6413 | err = TIFFReadDirEntryDoubleArray(tif, dp, &data); |
| 6414 | if (err == TIFFReadDirEntryErrOk) |
| 6415 | { |
| 6416 | int m; |
| 6417 | m = TIFFSetField(tif, dp->tdir_tag, data); |
| 6418 | if (data != 0) |
| 6419 | _TIFFfreeExt(tif, data); |
| 6420 | if (!m) |
| 6421 | return (0); |
| 6422 | } |
| 6423 | } |
| 6424 | } |
| 6425 | break; |
| 6426 | case TIFF_SETGET_C16_ASCII: |
| 6427 | { |
| 6428 | uint8_t *data; |
| 6429 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6430 | assert(fip->field_passcount == 1); |
| 6431 | if (dp->tdir_count > 0xFFFF) |
| 6432 | err = TIFFReadDirEntryErrCount; |
| 6433 | else |
| 6434 | { |
| 6435 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
| 6436 | if (err == TIFFReadDirEntryErrOk) |
| 6437 | { |
| 6438 | int m; |
| 6439 | if (data != 0 && dp->tdir_count > 0 && |
| 6440 | data[dp->tdir_count - 1] != '\0') |
| 6441 | { |
| 6442 | TIFFWarningExtR( |
| 6443 | tif, module, |
| 6444 | "ASCII value for tag \"%s\" does not end in null " |
| 6445 | "byte. Forcing it to be null", |
| 6446 | fip->field_name); |
| 6447 | data[dp->tdir_count - 1] = '\0'; |
| 6448 | } |
| 6449 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6450 | (uint16_t)(dp->tdir_count), data); |
| 6451 | if (data != 0) |
| 6452 | _TIFFfreeExt(tif, data); |
| 6453 | if (!m) |
| 6454 | return (0); |
| 6455 | } |
| 6456 | } |
| 6457 | } |
| 6458 | break; |
| 6459 | case TIFF_SETGET_C16_UINT8: |
| 6460 | { |
| 6461 | uint8_t *data; |
| 6462 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6463 | assert(fip->field_passcount == 1); |
| 6464 | if (dp->tdir_count > 0xFFFF) |
| 6465 | err = TIFFReadDirEntryErrCount; |
| 6466 | else |
| 6467 | { |
| 6468 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
| 6469 | if (err == TIFFReadDirEntryErrOk) |
| 6470 | { |
| 6471 | int m; |
| 6472 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6473 | (uint16_t)(dp->tdir_count), data); |
| 6474 | if (data != 0) |
| 6475 | _TIFFfreeExt(tif, data); |
| 6476 | if (!m) |
| 6477 | return (0); |
| 6478 | } |
| 6479 | } |
| 6480 | } |
| 6481 | break; |
| 6482 | case TIFF_SETGET_C16_SINT8: |
| 6483 | { |
| 6484 | int8_t *data; |
| 6485 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6486 | assert(fip->field_passcount == 1); |
| 6487 | if (dp->tdir_count > 0xFFFF) |
| 6488 | err = TIFFReadDirEntryErrCount; |
| 6489 | else |
| 6490 | { |
| 6491 | err = TIFFReadDirEntrySbyteArray(tif, dp, &data); |
| 6492 | if (err == TIFFReadDirEntryErrOk) |
| 6493 | { |
| 6494 | int m; |
| 6495 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6496 | (uint16_t)(dp->tdir_count), data); |
| 6497 | if (data != 0) |
| 6498 | _TIFFfreeExt(tif, data); |
| 6499 | if (!m) |
| 6500 | return (0); |
| 6501 | } |
| 6502 | } |
| 6503 | } |
| 6504 | break; |
| 6505 | case TIFF_SETGET_C16_UINT16: |
| 6506 | { |
| 6507 | uint16_t *data; |
| 6508 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6509 | assert(fip->field_passcount == 1); |
| 6510 | if (dp->tdir_count > 0xFFFF) |
| 6511 | err = TIFFReadDirEntryErrCount; |
| 6512 | else |
| 6513 | { |
| 6514 | err = TIFFReadDirEntryShortArray(tif, dp, &data); |
| 6515 | if (err == TIFFReadDirEntryErrOk) |
| 6516 | { |
| 6517 | int m; |
| 6518 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6519 | (uint16_t)(dp->tdir_count), data); |
| 6520 | if (data != 0) |
| 6521 | _TIFFfreeExt(tif, data); |
| 6522 | if (!m) |
| 6523 | return (0); |
| 6524 | } |
| 6525 | } |
| 6526 | } |
| 6527 | break; |
| 6528 | case TIFF_SETGET_C16_SINT16: |
| 6529 | { |
| 6530 | int16_t *data; |
| 6531 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6532 | assert(fip->field_passcount == 1); |
| 6533 | if (dp->tdir_count > 0xFFFF) |
| 6534 | err = TIFFReadDirEntryErrCount; |
| 6535 | else |
| 6536 | { |
| 6537 | err = TIFFReadDirEntrySshortArray(tif, dp, &data); |
| 6538 | if (err == TIFFReadDirEntryErrOk) |
| 6539 | { |
| 6540 | int m; |
| 6541 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6542 | (uint16_t)(dp->tdir_count), data); |
| 6543 | if (data != 0) |
| 6544 | _TIFFfreeExt(tif, data); |
| 6545 | if (!m) |
| 6546 | return (0); |
| 6547 | } |
| 6548 | } |
| 6549 | } |
| 6550 | break; |
| 6551 | case TIFF_SETGET_C16_UINT32: |
| 6552 | { |
| 6553 | uint32_t *data; |
| 6554 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6555 | assert(fip->field_passcount == 1); |
| 6556 | if (dp->tdir_count > 0xFFFF) |
| 6557 | err = TIFFReadDirEntryErrCount; |
| 6558 | else |
| 6559 | { |
| 6560 | err = TIFFReadDirEntryLongArray(tif, dp, &data); |
| 6561 | if (err == TIFFReadDirEntryErrOk) |
| 6562 | { |
| 6563 | int m; |
| 6564 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6565 | (uint16_t)(dp->tdir_count), data); |
| 6566 | if (data != 0) |
| 6567 | _TIFFfreeExt(tif, data); |
| 6568 | if (!m) |
| 6569 | return (0); |
| 6570 | } |
| 6571 | } |
| 6572 | } |
| 6573 | break; |
| 6574 | case TIFF_SETGET_C16_SINT32: |
| 6575 | { |
| 6576 | int32_t *data; |
| 6577 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6578 | assert(fip->field_passcount == 1); |
| 6579 | if (dp->tdir_count > 0xFFFF) |
| 6580 | err = TIFFReadDirEntryErrCount; |
| 6581 | else |
| 6582 | { |
| 6583 | err = TIFFReadDirEntrySlongArray(tif, dp, &data); |
| 6584 | if (err == TIFFReadDirEntryErrOk) |
| 6585 | { |
| 6586 | int m; |
| 6587 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6588 | (uint16_t)(dp->tdir_count), data); |
| 6589 | if (data != 0) |
| 6590 | _TIFFfreeExt(tif, data); |
| 6591 | if (!m) |
| 6592 | return (0); |
| 6593 | } |
| 6594 | } |
| 6595 | } |
| 6596 | break; |
| 6597 | case TIFF_SETGET_C16_UINT64: |
| 6598 | { |
| 6599 | uint64_t *data; |
| 6600 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6601 | assert(fip->field_passcount == 1); |
| 6602 | if (dp->tdir_count > 0xFFFF) |
| 6603 | err = TIFFReadDirEntryErrCount; |
| 6604 | else |
| 6605 | { |
| 6606 | err = TIFFReadDirEntryLong8Array(tif, dp, &data); |
| 6607 | if (err == TIFFReadDirEntryErrOk) |
| 6608 | { |
| 6609 | int m; |
| 6610 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6611 | (uint16_t)(dp->tdir_count), data); |
| 6612 | if (data != 0) |
| 6613 | _TIFFfreeExt(tif, data); |
| 6614 | if (!m) |
| 6615 | return (0); |
| 6616 | } |
| 6617 | } |
| 6618 | } |
| 6619 | break; |
| 6620 | case TIFF_SETGET_C16_SINT64: |
| 6621 | { |
| 6622 | int64_t *data; |
| 6623 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6624 | assert(fip->field_passcount == 1); |
| 6625 | if (dp->tdir_count > 0xFFFF) |
| 6626 | err = TIFFReadDirEntryErrCount; |
| 6627 | else |
| 6628 | { |
| 6629 | err = TIFFReadDirEntrySlong8Array(tif, dp, &data); |
| 6630 | if (err == TIFFReadDirEntryErrOk) |
| 6631 | { |
| 6632 | int m; |
| 6633 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6634 | (uint16_t)(dp->tdir_count), data); |
| 6635 | if (data != 0) |
| 6636 | _TIFFfreeExt(tif, data); |
| 6637 | if (!m) |
| 6638 | return (0); |
| 6639 | } |
| 6640 | } |
| 6641 | } |
| 6642 | break; |
| 6643 | case TIFF_SETGET_C16_FLOAT: |
| 6644 | { |
| 6645 | float *data; |
| 6646 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6647 | assert(fip->field_passcount == 1); |
| 6648 | if (dp->tdir_count > 0xFFFF) |
| 6649 | err = TIFFReadDirEntryErrCount; |
| 6650 | else |
| 6651 | { |
| 6652 | err = TIFFReadDirEntryFloatArray(tif, dp, &data); |
| 6653 | if (err == TIFFReadDirEntryErrOk) |
| 6654 | { |
| 6655 | int m; |
| 6656 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6657 | (uint16_t)(dp->tdir_count), data); |
| 6658 | if (data != 0) |
| 6659 | _TIFFfreeExt(tif, data); |
| 6660 | if (!m) |
| 6661 | return (0); |
| 6662 | } |
| 6663 | } |
| 6664 | } |
| 6665 | break; |
| 6666 | case TIFF_SETGET_C16_DOUBLE: |
| 6667 | { |
| 6668 | double *data; |
| 6669 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6670 | assert(fip->field_passcount == 1); |
| 6671 | if (dp->tdir_count > 0xFFFF) |
| 6672 | err = TIFFReadDirEntryErrCount; |
| 6673 | else |
| 6674 | { |
| 6675 | err = TIFFReadDirEntryDoubleArray(tif, dp, &data); |
| 6676 | if (err == TIFFReadDirEntryErrOk) |
| 6677 | { |
| 6678 | int m; |
| 6679 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6680 | (uint16_t)(dp->tdir_count), data); |
| 6681 | if (data != 0) |
| 6682 | _TIFFfreeExt(tif, data); |
| 6683 | if (!m) |
| 6684 | return (0); |
| 6685 | } |
| 6686 | } |
| 6687 | } |
| 6688 | break; |
| 6689 | case TIFF_SETGET_C16_IFD8: |
| 6690 | { |
| 6691 | uint64_t *data; |
| 6692 | assert(fip->field_readcount == TIFF_VARIABLE); |
| 6693 | assert(fip->field_passcount == 1); |
| 6694 | if (dp->tdir_count > 0xFFFF) |
| 6695 | err = TIFFReadDirEntryErrCount; |
| 6696 | else |
| 6697 | { |
| 6698 | err = TIFFReadDirEntryIfd8Array(tif, dp, &data); |
| 6699 | if (err == TIFFReadDirEntryErrOk) |
| 6700 | { |
| 6701 | int m; |
| 6702 | m = TIFFSetField(tif, dp->tdir_tag, |
| 6703 | (uint16_t)(dp->tdir_count), data); |
| 6704 | if (data != 0) |
| 6705 | _TIFFfreeExt(tif, data); |
| 6706 | if (!m) |
| 6707 | return (0); |
| 6708 | } |
| 6709 | } |
| 6710 | } |
| 6711 | break; |
| 6712 | case TIFF_SETGET_C32_ASCII: |
| 6713 | { |
| 6714 | uint8_t *data; |
| 6715 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6716 | assert(fip->field_passcount == 1); |
| 6717 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
| 6718 | if (err == TIFFReadDirEntryErrOk) |
| 6719 | { |
| 6720 | int m; |
| 6721 | if (data != 0 && dp->tdir_count > 0 && |
| 6722 | data[dp->tdir_count - 1] != '\0') |
| 6723 | { |
| 6724 | TIFFWarningExtR(tif, module, |
| 6725 | "ASCII value for tag \"%s\" does not end " |
| 6726 | "in null byte. Forcing it to be null", |
| 6727 | fip->field_name); |
| 6728 | data[dp->tdir_count - 1] = '\0'; |
| 6729 | } |
| 6730 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
| 6731 | data); |
| 6732 | if (data != 0) |
| 6733 | _TIFFfreeExt(tif, data); |
| 6734 | if (!m) |
| 6735 | return (0); |
| 6736 | } |
| 6737 | } |
| 6738 | break; |
| 6739 | case TIFF_SETGET_C32_UINT8: |
| 6740 | { |
| 6741 | uint8_t *data; |
| 6742 | uint32_t count = 0; |
| 6743 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6744 | assert(fip->field_passcount == 1); |
| 6745 | if (fip->field_tag == TIFFTAG_RICHTIFFIPTC && |
| 6746 | dp->tdir_type == TIFF_LONG) |
| 6747 | { |
| 6748 | /* Adobe's software (wrongly) writes RichTIFFIPTC tag with |
| 6749 | * data type LONG instead of UNDEFINED. Work around this |
| 6750 | * frequently found issue */ |
| 6751 | void *origdata; |
| 6752 | err = TIFFReadDirEntryArray(tif, dp, &count, 4, &origdata); |
| 6753 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
| 6754 | { |
| 6755 | data = NULL; |
| 6756 | } |
| 6757 | else |
| 6758 | { |
| 6759 | if (tif->tif_flags & TIFF_SWAB) |
| 6760 | TIFFSwabArrayOfLong((uint32_t *)origdata, count); |
| 6761 | data = (uint8_t *)origdata; |
| 6762 | count = (uint32_t)(count * 4); |
| 6763 | } |
| 6764 | } |
| 6765 | else |
| 6766 | { |
| 6767 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
| 6768 | count = (uint32_t)(dp->tdir_count); |
| 6769 | } |
| 6770 | if (err == TIFFReadDirEntryErrOk) |
| 6771 | { |
| 6772 | int m; |
| 6773 | m = TIFFSetField(tif, dp->tdir_tag, count, data); |
| 6774 | if (data != 0) |
| 6775 | _TIFFfreeExt(tif, data); |
| 6776 | if (!m) |
| 6777 | return (0); |
| 6778 | } |
| 6779 | } |
| 6780 | break; |
| 6781 | case TIFF_SETGET_C32_SINT8: |
| 6782 | { |
| 6783 | int8_t *data = NULL; |
| 6784 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6785 | assert(fip->field_passcount == 1); |
| 6786 | err = TIFFReadDirEntrySbyteArray(tif, dp, &data); |
| 6787 | if (err == TIFFReadDirEntryErrOk) |
| 6788 | { |
| 6789 | int m; |
| 6790 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
| 6791 | data); |
| 6792 | if (data != 0) |
| 6793 | _TIFFfreeExt(tif, data); |
| 6794 | if (!m) |
| 6795 | return (0); |
| 6796 | } |
| 6797 | } |
| 6798 | break; |
| 6799 | case TIFF_SETGET_C32_UINT16: |
| 6800 | { |
| 6801 | uint16_t *data; |
| 6802 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6803 | assert(fip->field_passcount == 1); |
| 6804 | err = TIFFReadDirEntryShortArray(tif, dp, &data); |
| 6805 | if (err == TIFFReadDirEntryErrOk) |
| 6806 | { |
| 6807 | int m; |
| 6808 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
| 6809 | data); |
| 6810 | if (data != 0) |
| 6811 | _TIFFfreeExt(tif, data); |
| 6812 | if (!m) |
| 6813 | return (0); |
| 6814 | } |
| 6815 | } |
| 6816 | break; |
| 6817 | case TIFF_SETGET_C32_SINT16: |
| 6818 | { |
| 6819 | int16_t *data = NULL; |
| 6820 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6821 | assert(fip->field_passcount == 1); |
| 6822 | err = TIFFReadDirEntrySshortArray(tif, dp, &data); |
| 6823 | if (err == TIFFReadDirEntryErrOk) |
| 6824 | { |
| 6825 | int m; |
| 6826 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
| 6827 | data); |
| 6828 | if (data != 0) |
| 6829 | _TIFFfreeExt(tif, data); |
| 6830 | if (!m) |
| 6831 | return (0); |
| 6832 | } |
| 6833 | } |
| 6834 | break; |
| 6835 | case TIFF_SETGET_C32_UINT32: |
| 6836 | { |
| 6837 | uint32_t *data; |
| 6838 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6839 | assert(fip->field_passcount == 1); |
| 6840 | err = TIFFReadDirEntryLongArray(tif, dp, &data); |
| 6841 | if (err == TIFFReadDirEntryErrOk) |
| 6842 | { |
| 6843 | int m; |
| 6844 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
| 6845 | data); |
| 6846 | if (data != 0) |
| 6847 | _TIFFfreeExt(tif, data); |
| 6848 | if (!m) |
| 6849 | return (0); |
| 6850 | } |
| 6851 | } |
| 6852 | break; |
| 6853 | case TIFF_SETGET_C32_SINT32: |
| 6854 | { |
| 6855 | int32_t *data = NULL; |
| 6856 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6857 | assert(fip->field_passcount == 1); |
| 6858 | err = TIFFReadDirEntrySlongArray(tif, dp, &data); |
| 6859 | if (err == TIFFReadDirEntryErrOk) |
| 6860 | { |
| 6861 | int m; |
| 6862 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
| 6863 | data); |
| 6864 | if (data != 0) |
| 6865 | _TIFFfreeExt(tif, data); |
| 6866 | if (!m) |
| 6867 | return (0); |
| 6868 | } |
| 6869 | } |
| 6870 | break; |
| 6871 | case TIFF_SETGET_C32_UINT64: |
| 6872 | { |
| 6873 | uint64_t *data; |
| 6874 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6875 | assert(fip->field_passcount == 1); |
| 6876 | err = TIFFReadDirEntryLong8Array(tif, dp, &data); |
| 6877 | if (err == TIFFReadDirEntryErrOk) |
| 6878 | { |
| 6879 | int m; |
| 6880 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
| 6881 | data); |
| 6882 | if (data != 0) |
| 6883 | _TIFFfreeExt(tif, data); |
| 6884 | if (!m) |
| 6885 | return (0); |
| 6886 | } |
| 6887 | } |
| 6888 | break; |
| 6889 | case TIFF_SETGET_C32_SINT64: |
| 6890 | { |
| 6891 | int64_t *data = NULL; |
| 6892 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6893 | assert(fip->field_passcount == 1); |
| 6894 | err = TIFFReadDirEntrySlong8Array(tif, dp, &data); |
| 6895 | if (err == TIFFReadDirEntryErrOk) |
| 6896 | { |
| 6897 | int m; |
| 6898 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
| 6899 | data); |
| 6900 | if (data != 0) |
| 6901 | _TIFFfreeExt(tif, data); |
| 6902 | if (!m) |
| 6903 | return (0); |
| 6904 | } |
| 6905 | } |
| 6906 | break; |
| 6907 | case TIFF_SETGET_C32_FLOAT: |
| 6908 | { |
| 6909 | float *data; |
| 6910 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6911 | assert(fip->field_passcount == 1); |
| 6912 | err = TIFFReadDirEntryFloatArray(tif, dp, &data); |
| 6913 | if (err == TIFFReadDirEntryErrOk) |
| 6914 | { |
| 6915 | int m; |
| 6916 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
| 6917 | data); |
| 6918 | if (data != 0) |
| 6919 | _TIFFfreeExt(tif, data); |
| 6920 | if (!m) |
| 6921 | return (0); |
| 6922 | } |
| 6923 | } |
| 6924 | break; |
| 6925 | case TIFF_SETGET_C32_DOUBLE: |
| 6926 | { |
| 6927 | double *data; |
| 6928 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6929 | assert(fip->field_passcount == 1); |
| 6930 | err = TIFFReadDirEntryDoubleArray(tif, dp, &data); |
| 6931 | if (err == TIFFReadDirEntryErrOk) |
| 6932 | { |
| 6933 | int m; |
| 6934 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
| 6935 | data); |
| 6936 | if (data != 0) |
| 6937 | _TIFFfreeExt(tif, data); |
| 6938 | if (!m) |
| 6939 | return (0); |
| 6940 | } |
| 6941 | } |
| 6942 | break; |
| 6943 | case TIFF_SETGET_C32_IFD8: |
| 6944 | { |
| 6945 | uint64_t *data; |
| 6946 | assert(fip->field_readcount == TIFF_VARIABLE2); |
| 6947 | assert(fip->field_passcount == 1); |
| 6948 | err = TIFFReadDirEntryIfd8Array(tif, dp, &data); |
| 6949 | if (err == TIFFReadDirEntryErrOk) |
| 6950 | { |
| 6951 | int m; |
| 6952 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
| 6953 | data); |
| 6954 | if (data != 0) |
| 6955 | _TIFFfreeExt(tif, data); |
| 6956 | if (!m) |
| 6957 | return (0); |
| 6958 | } |
| 6959 | } |
| 6960 | break; |
| 6961 | default: |
| 6962 | assert(0); /* we should never get here */ |
| 6963 | break; |
| 6964 | } |
| 6965 | if (err != TIFFReadDirEntryErrOk) |
| 6966 | { |
| 6967 | TIFFReadDirEntryOutputErr(tif, err, module, fip->field_name, recover); |
| 6968 | return (0); |
| 6969 | } |
| 6970 | return (1); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 6971 | } |
| 6972 | |
| 6973 | /* |
| 6974 | * Fetch a set of offsets or lengths. |
| 6975 | * While this routine says "strips", in fact it's also used for tiles. |
| 6976 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 6977 | static int TIFFFetchStripThing(TIFF *tif, TIFFDirEntry *dir, uint32_t nstrips, |
| 6978 | uint64_t **lpp) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 6979 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 6980 | static const char module[] = "TIFFFetchStripThing"; |
| 6981 | enum TIFFReadDirEntryErr err; |
| 6982 | uint64_t *data; |
| 6983 | err = TIFFReadDirEntryLong8ArrayWithLimit(tif, dir, &data, nstrips); |
| 6984 | if (err != TIFFReadDirEntryErrOk) |
| 6985 | { |
| 6986 | const TIFFField *fip = TIFFFieldWithTag(tif, dir->tdir_tag); |
| 6987 | TIFFReadDirEntryOutputErr(tif, err, module, |
| 6988 | fip ? fip->field_name : "unknown tagname", 0); |
| 6989 | return (0); |
| 6990 | } |
| 6991 | if (dir->tdir_count < (uint64_t)nstrips) |
| 6992 | { |
| 6993 | uint64_t *resizeddata; |
| 6994 | const TIFFField *fip = TIFFFieldWithTag(tif, dir->tdir_tag); |
| 6995 | const char *pszMax = getenv("LIBTIFF_STRILE_ARRAY_MAX_RESIZE_COUNT"); |
| 6996 | uint32_t max_nstrips = 1000000; |
| 6997 | if (pszMax) |
| 6998 | max_nstrips = (uint32_t)atoi(pszMax); |
| 6999 | TIFFReadDirEntryOutputErr(tif, TIFFReadDirEntryErrCount, module, |
| 7000 | fip ? fip->field_name : "unknown tagname", |
| 7001 | (nstrips <= max_nstrips)); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7002 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7003 | if (nstrips > max_nstrips) |
| 7004 | { |
| 7005 | _TIFFfreeExt(tif, data); |
| 7006 | return (0); |
| 7007 | } |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7008 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7009 | resizeddata = (uint64_t *)_TIFFCheckMalloc( |
| 7010 | tif, nstrips, sizeof(uint64_t), "for strip array"); |
| 7011 | if (resizeddata == 0) |
| 7012 | { |
| 7013 | _TIFFfreeExt(tif, data); |
| 7014 | return (0); |
| 7015 | } |
| 7016 | if (dir->tdir_count) |
| 7017 | _TIFFmemcpy(resizeddata, data, |
| 7018 | (uint32_t)dir->tdir_count * sizeof(uint64_t)); |
| 7019 | _TIFFmemset(resizeddata + (uint32_t)dir->tdir_count, 0, |
| 7020 | (nstrips - (uint32_t)dir->tdir_count) * sizeof(uint64_t)); |
| 7021 | _TIFFfreeExt(tif, data); |
| 7022 | data = resizeddata; |
| 7023 | } |
| 7024 | *lpp = data; |
| 7025 | return (1); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7026 | } |
| 7027 | |
| 7028 | /* |
| 7029 | * Fetch and set the SubjectDistance EXIF tag. |
| 7030 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7031 | static int TIFFFetchSubjectDistance(TIFF *tif, TIFFDirEntry *dir) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7032 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7033 | static const char module[] = "TIFFFetchSubjectDistance"; |
| 7034 | enum TIFFReadDirEntryErr err; |
| 7035 | UInt64Aligned_t m; |
| 7036 | m.l = 0; |
| 7037 | assert(sizeof(double) == 8); |
| 7038 | assert(sizeof(uint64_t) == 8); |
| 7039 | assert(sizeof(uint32_t) == 4); |
| 7040 | if (dir->tdir_count != 1) |
| 7041 | err = TIFFReadDirEntryErrCount; |
| 7042 | else if (dir->tdir_type != TIFF_RATIONAL) |
| 7043 | err = TIFFReadDirEntryErrType; |
| 7044 | else |
| 7045 | { |
| 7046 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
| 7047 | { |
| 7048 | uint32_t offset; |
| 7049 | offset = *(uint32_t *)(&dir->tdir_offset); |
| 7050 | if (tif->tif_flags & TIFF_SWAB) |
| 7051 | TIFFSwabLong(&offset); |
| 7052 | err = TIFFReadDirEntryData(tif, offset, 8, m.i); |
| 7053 | } |
| 7054 | else |
| 7055 | { |
| 7056 | m.l = dir->tdir_offset.toff_long8; |
| 7057 | err = TIFFReadDirEntryErrOk; |
| 7058 | } |
| 7059 | } |
| 7060 | if (err == TIFFReadDirEntryErrOk) |
| 7061 | { |
| 7062 | double n; |
| 7063 | if (tif->tif_flags & TIFF_SWAB) |
| 7064 | TIFFSwabArrayOfLong(m.i, 2); |
| 7065 | if (m.i[0] == 0) |
| 7066 | n = 0.0; |
| 7067 | else if (m.i[0] == 0xFFFFFFFF || m.i[1] == 0) |
| 7068 | /* |
| 7069 | * XXX: Numerator 0xFFFFFFFF means that we have infinite |
| 7070 | * distance. Indicate that with a negative floating point |
| 7071 | * SubjectDistance value. |
| 7072 | */ |
| 7073 | n = -1.0; |
| 7074 | else |
| 7075 | n = (double)m.i[0] / (double)m.i[1]; |
| 7076 | return (TIFFSetField(tif, dir->tdir_tag, n)); |
| 7077 | } |
| 7078 | else |
| 7079 | { |
| 7080 | TIFFReadDirEntryOutputErr(tif, err, module, "SubjectDistance", TRUE); |
| 7081 | return (0); |
| 7082 | } |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7083 | } |
| 7084 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7085 | static void allocChoppedUpStripArrays(TIFF *tif, uint32_t nstrips, |
| 7086 | uint64_t stripbytes, |
| 7087 | uint32_t rowsperstrip) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7088 | { |
| 7089 | TIFFDirectory *td = &tif->tif_dir; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7090 | uint64_t bytecount; |
| 7091 | uint64_t offset; |
| 7092 | uint64_t last_offset; |
| 7093 | uint64_t last_bytecount; |
| 7094 | uint32_t i; |
| 7095 | uint64_t *newcounts; |
| 7096 | uint64_t *newoffsets; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7097 | |
| 7098 | offset = TIFFGetStrileOffset(tif, 0); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7099 | last_offset = TIFFGetStrileOffset(tif, td->td_nstrips - 1); |
| 7100 | last_bytecount = TIFFGetStrileByteCount(tif, td->td_nstrips - 1); |
| 7101 | if (last_offset > UINT64_MAX - last_bytecount || |
| 7102 | last_offset + last_bytecount < offset) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7103 | { |
| 7104 | return; |
| 7105 | } |
| 7106 | bytecount = last_offset + last_bytecount - offset; |
| 7107 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7108 | newcounts = |
| 7109 | (uint64_t *)_TIFFCheckMalloc(tif, nstrips, sizeof(uint64_t), |
| 7110 | "for chopped \"StripByteCounts\" array"); |
| 7111 | newoffsets = (uint64_t *)_TIFFCheckMalloc( |
| 7112 | tif, nstrips, sizeof(uint64_t), "for chopped \"StripOffsets\" array"); |
| 7113 | if (newcounts == NULL || newoffsets == NULL) |
| 7114 | { |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7115 | /* |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7116 | * Unable to allocate new strip information, give up and use |
| 7117 | * the original one strip information. |
| 7118 | */ |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7119 | if (newcounts != NULL) |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7120 | _TIFFfreeExt(tif, newcounts); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7121 | if (newoffsets != NULL) |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7122 | _TIFFfreeExt(tif, newoffsets); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7123 | return; |
| 7124 | } |
| 7125 | |
| 7126 | /* |
| 7127 | * Fill the strip information arrays with new bytecounts and offsets |
| 7128 | * that reflect the broken-up format. |
| 7129 | */ |
| 7130 | for (i = 0; i < nstrips; i++) |
| 7131 | { |
| 7132 | if (stripbytes > bytecount) |
| 7133 | stripbytes = bytecount; |
| 7134 | newcounts[i] = stripbytes; |
| 7135 | newoffsets[i] = stripbytes ? offset : 0; |
| 7136 | offset += stripbytes; |
| 7137 | bytecount -= stripbytes; |
| 7138 | } |
| 7139 | |
| 7140 | /* |
| 7141 | * Replace old single strip info with multi-strip info. |
| 7142 | */ |
| 7143 | td->td_stripsperimage = td->td_nstrips = nstrips; |
| 7144 | TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); |
| 7145 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7146 | _TIFFfreeExt(tif, td->td_stripbytecount_p); |
| 7147 | _TIFFfreeExt(tif, td->td_stripoffset_p); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7148 | td->td_stripbytecount_p = newcounts; |
| 7149 | td->td_stripoffset_p = newoffsets; |
| 7150 | #ifdef STRIPBYTECOUNTSORTED_UNUSED |
| 7151 | td->td_stripbytecountsorted = 1; |
| 7152 | #endif |
| 7153 | tif->tif_flags |= TIFF_CHOPPEDUPARRAYS; |
| 7154 | } |
| 7155 | |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7156 | /* |
| 7157 | * Replace a single strip (tile) of uncompressed data by multiple strips |
| 7158 | * (tiles), each approximately STRIP_SIZE_DEFAULT bytes. This is useful for |
| 7159 | * dealing with large images or for dealing with machines with a limited |
| 7160 | * amount memory. |
| 7161 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7162 | static void ChopUpSingleUncompressedStrip(TIFF *tif) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7163 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7164 | register TIFFDirectory *td = &tif->tif_dir; |
| 7165 | uint64_t bytecount; |
| 7166 | uint64_t offset; |
| 7167 | uint32_t rowblock; |
| 7168 | uint64_t rowblockbytes; |
| 7169 | uint64_t stripbytes; |
| 7170 | uint32_t nstrips; |
| 7171 | uint32_t rowsperstrip; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7172 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7173 | bytecount = TIFFGetStrileByteCount(tif, 0); |
| 7174 | /* On a newly created file, just re-opened to be filled, we */ |
| 7175 | /* don't want strip chop to trigger as it is going to cause issues */ |
| 7176 | /* later ( StripOffsets and StripByteCounts improperly filled) . */ |
| 7177 | if (bytecount == 0 && tif->tif_mode != O_RDONLY) |
| 7178 | return; |
| 7179 | offset = TIFFGetStrileByteCount(tif, 0); |
| 7180 | assert(td->td_planarconfig == PLANARCONFIG_CONTIG); |
| 7181 | if ((td->td_photometric == PHOTOMETRIC_YCBCR) && (!isUpSampled(tif))) |
| 7182 | rowblock = td->td_ycbcrsubsampling[1]; |
| 7183 | else |
| 7184 | rowblock = 1; |
| 7185 | rowblockbytes = TIFFVTileSize64(tif, rowblock); |
| 7186 | /* |
| 7187 | * Make the rows hold at least one scanline, but fill specified amount |
| 7188 | * of data if possible. |
| 7189 | */ |
| 7190 | if (rowblockbytes > STRIP_SIZE_DEFAULT) |
| 7191 | { |
| 7192 | stripbytes = rowblockbytes; |
| 7193 | rowsperstrip = rowblock; |
| 7194 | } |
| 7195 | else if (rowblockbytes > 0) |
| 7196 | { |
| 7197 | uint32_t rowblocksperstrip; |
| 7198 | rowblocksperstrip = (uint32_t)(STRIP_SIZE_DEFAULT / rowblockbytes); |
| 7199 | rowsperstrip = rowblocksperstrip * rowblock; |
| 7200 | stripbytes = rowblocksperstrip * rowblockbytes; |
| 7201 | } |
| 7202 | else |
| 7203 | return; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7204 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7205 | /* |
| 7206 | * never increase the number of rows per strip |
| 7207 | */ |
| 7208 | if (rowsperstrip >= td->td_rowsperstrip) |
| 7209 | return; |
| 7210 | nstrips = TIFFhowmany_32(td->td_imagelength, rowsperstrip); |
| 7211 | if (nstrips == 0) |
| 7212 | return; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7213 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7214 | /* If we are going to allocate a lot of memory, make sure that the */ |
| 7215 | /* file is as big as needed */ |
| 7216 | if (tif->tif_mode == O_RDONLY && nstrips > 1000000 && |
| 7217 | (offset >= TIFFGetFileSize(tif) || |
| 7218 | stripbytes > (TIFFGetFileSize(tif) - offset) / (nstrips - 1))) |
| 7219 | { |
| 7220 | return; |
| 7221 | } |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7222 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7223 | allocChoppedUpStripArrays(tif, nstrips, stripbytes, rowsperstrip); |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7224 | } |
| 7225 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7226 | /* |
| 7227 | * Replace a file with contiguous strips > 2 GB of uncompressed data by |
| 7228 | * multiple smaller strips. This is useful for |
| 7229 | * dealing with large images or for dealing with machines with a limited |
| 7230 | * amount memory. |
| 7231 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7232 | static void TryChopUpUncompressedBigTiff(TIFF *tif) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7233 | { |
| 7234 | TIFFDirectory *td = &tif->tif_dir; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7235 | uint32_t rowblock; |
| 7236 | uint64_t rowblockbytes; |
| 7237 | uint32_t i; |
| 7238 | uint64_t stripsize; |
| 7239 | uint32_t rowblocksperstrip; |
| 7240 | uint32_t rowsperstrip; |
| 7241 | uint64_t stripbytes; |
| 7242 | uint32_t nstrips; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7243 | |
| 7244 | stripsize = TIFFStripSize64(tif); |
| 7245 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7246 | assert(tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG); |
| 7247 | assert(tif->tif_dir.td_compression == COMPRESSION_NONE); |
| 7248 | assert((tif->tif_flags & (TIFF_STRIPCHOP | TIFF_ISTILED)) == |
| 7249 | TIFF_STRIPCHOP); |
| 7250 | assert(stripsize > 0x7FFFFFFFUL); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7251 | |
| 7252 | /* On a newly created file, just re-opened to be filled, we */ |
| 7253 | /* don't want strip chop to trigger as it is going to cause issues */ |
| 7254 | /* later ( StripOffsets and StripByteCounts improperly filled) . */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7255 | if (TIFFGetStrileByteCount(tif, 0) == 0 && tif->tif_mode != O_RDONLY) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7256 | return; |
| 7257 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7258 | if ((td->td_photometric == PHOTOMETRIC_YCBCR) && (!isUpSampled(tif))) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7259 | rowblock = td->td_ycbcrsubsampling[1]; |
| 7260 | else |
| 7261 | rowblock = 1; |
| 7262 | rowblockbytes = TIFFVStripSize64(tif, rowblock); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7263 | if (rowblockbytes == 0 || rowblockbytes > 0x7FFFFFFFUL) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7264 | { |
| 7265 | /* In case of file with gigantic width */ |
| 7266 | return; |
| 7267 | } |
| 7268 | |
| 7269 | /* Check that the strips are contiguous and of the expected size */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7270 | for (i = 0; i < td->td_nstrips; i++) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7271 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7272 | if (i == td->td_nstrips - 1) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7273 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7274 | if (TIFFGetStrileByteCount(tif, i) < |
| 7275 | TIFFVStripSize64(tif, |
| 7276 | td->td_imagelength - i * td->td_rowsperstrip)) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7277 | { |
| 7278 | return; |
| 7279 | } |
| 7280 | } |
| 7281 | else |
| 7282 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7283 | if (TIFFGetStrileByteCount(tif, i) != stripsize) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7284 | { |
| 7285 | return; |
| 7286 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7287 | if (i > 0 && TIFFGetStrileOffset(tif, i) != |
| 7288 | TIFFGetStrileOffset(tif, i - 1) + |
| 7289 | TIFFGetStrileByteCount(tif, i - 1)) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7290 | { |
| 7291 | return; |
| 7292 | } |
| 7293 | } |
| 7294 | } |
| 7295 | |
| 7296 | /* Aim for 512 MB strips (that will still be manageable by 32 bit builds */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7297 | rowblocksperstrip = (uint32_t)(512 * 1024 * 1024 / rowblockbytes); |
| 7298 | if (rowblocksperstrip == 0) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7299 | rowblocksperstrip = 1; |
| 7300 | rowsperstrip = rowblocksperstrip * rowblock; |
| 7301 | stripbytes = rowblocksperstrip * rowblockbytes; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7302 | assert(stripbytes <= 0x7FFFFFFFUL); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7303 | |
| 7304 | nstrips = TIFFhowmany_32(td->td_imagelength, rowsperstrip); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7305 | if (nstrips == 0) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7306 | return; |
| 7307 | |
| 7308 | /* If we are going to allocate a lot of memory, make sure that the */ |
| 7309 | /* file is as big as needed */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7310 | if (tif->tif_mode == O_RDONLY && nstrips > 1000000) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7311 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7312 | uint64_t last_offset = TIFFGetStrileOffset(tif, td->td_nstrips - 1); |
| 7313 | uint64_t filesize = TIFFGetFileSize(tif); |
| 7314 | uint64_t last_bytecount = |
| 7315 | TIFFGetStrileByteCount(tif, td->td_nstrips - 1); |
| 7316 | if (last_offset > filesize || last_bytecount > filesize - last_offset) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7317 | { |
| 7318 | return; |
| 7319 | } |
| 7320 | } |
| 7321 | |
| 7322 | allocChoppedUpStripArrays(tif, nstrips, stripbytes, rowsperstrip); |
| 7323 | } |
| 7324 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7325 | TIFF_NOSANITIZE_UNSIGNED_INT_OVERFLOW |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7326 | static uint64_t _TIFFUnsanitizedAddUInt64AndInt(uint64_t a, int b) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7327 | { |
| 7328 | return a + b; |
| 7329 | } |
| 7330 | |
| 7331 | /* Read the value of [Strip|Tile]Offset or [Strip|Tile]ByteCount around |
| 7332 | * strip/tile of number strile. Also fetch the neighbouring values using a |
| 7333 | * 4096 byte page size. |
| 7334 | */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7335 | static int _TIFFPartialReadStripArray(TIFF *tif, TIFFDirEntry *dirent, |
| 7336 | int strile, uint64_t *panVals) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7337 | { |
| 7338 | static const char module[] = "_TIFFPartialReadStripArray"; |
| 7339 | #define IO_CACHE_PAGE_SIZE 4096 |
| 7340 | |
| 7341 | size_t sizeofval; |
| 7342 | const int bSwab = (tif->tif_flags & TIFF_SWAB) != 0; |
| 7343 | int sizeofvalint; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7344 | uint64_t nBaseOffset; |
| 7345 | uint64_t nOffset; |
| 7346 | uint64_t nOffsetStartPage; |
| 7347 | uint64_t nOffsetEndPage; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7348 | tmsize_t nToRead; |
| 7349 | tmsize_t nRead; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7350 | uint64_t nLastStripOffset; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7351 | int iStartBefore; |
| 7352 | int i; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7353 | const uint32_t arraySize = tif->tif_dir.td_stripoffsetbyteallocsize; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7354 | unsigned char buffer[2 * IO_CACHE_PAGE_SIZE]; |
| 7355 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7356 | assert(dirent->tdir_count > 4); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7357 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7358 | if (dirent->tdir_type == TIFF_SHORT) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7359 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7360 | sizeofval = sizeof(uint16_t); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7361 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7362 | else if (dirent->tdir_type == TIFF_LONG) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7363 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7364 | sizeofval = sizeof(uint32_t); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7365 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7366 | else if (dirent->tdir_type == TIFF_LONG8) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7367 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7368 | sizeofval = sizeof(uint64_t); |
| 7369 | } |
| 7370 | else if (dirent->tdir_type == TIFF_SLONG8) |
| 7371 | { |
| 7372 | /* Non conformant but used by some images as in */ |
| 7373 | /* https://github.com/OSGeo/gdal/issues/2165 */ |
| 7374 | sizeofval = sizeof(int64_t); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7375 | } |
| 7376 | else |
| 7377 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7378 | TIFFErrorExtR(tif, module, |
| 7379 | "Invalid type for [Strip|Tile][Offset/ByteCount] tag"); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7380 | panVals[strile] = 0; |
| 7381 | return 0; |
| 7382 | } |
| 7383 | sizeofvalint = (int)(sizeofval); |
| 7384 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7385 | if (tif->tif_flags & TIFF_BIGTIFF) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7386 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7387 | uint64_t offset = dirent->tdir_offset.toff_long8; |
| 7388 | if (bSwab) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7389 | TIFFSwabLong8(&offset); |
| 7390 | nBaseOffset = offset; |
| 7391 | } |
| 7392 | else |
| 7393 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7394 | uint32_t offset = dirent->tdir_offset.toff_long; |
| 7395 | if (bSwab) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7396 | TIFFSwabLong(&offset); |
| 7397 | nBaseOffset = offset; |
| 7398 | } |
| 7399 | /* To avoid later unsigned integer overflows */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7400 | if (nBaseOffset > (uint64_t)INT64_MAX) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7401 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7402 | TIFFErrorExtR(tif, module, "Cannot read offset/size for strile %d", |
| 7403 | strile); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7404 | panVals[strile] = 0; |
| 7405 | return 0; |
| 7406 | } |
| 7407 | nOffset = nBaseOffset + sizeofval * strile; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7408 | nOffsetStartPage = (nOffset / IO_CACHE_PAGE_SIZE) * IO_CACHE_PAGE_SIZE; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7409 | nOffsetEndPage = nOffsetStartPage + IO_CACHE_PAGE_SIZE; |
| 7410 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7411 | if (nOffset + sizeofval > nOffsetEndPage) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7412 | nOffsetEndPage += IO_CACHE_PAGE_SIZE; |
| 7413 | #undef IO_CACHE_PAGE_SIZE |
| 7414 | |
| 7415 | nLastStripOffset = nBaseOffset + arraySize * sizeofval; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7416 | if (nLastStripOffset < nOffsetEndPage) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7417 | nOffsetEndPage = nLastStripOffset; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7418 | if (nOffsetStartPage >= nOffsetEndPage) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7419 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7420 | TIFFErrorExtR(tif, module, "Cannot read offset/size for strile %d", |
| 7421 | strile); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7422 | panVals[strile] = 0; |
| 7423 | return 0; |
| 7424 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7425 | if (!SeekOK(tif, nOffsetStartPage)) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7426 | { |
| 7427 | panVals[strile] = 0; |
| 7428 | return 0; |
| 7429 | } |
| 7430 | |
| 7431 | nToRead = (tmsize_t)(nOffsetEndPage - nOffsetStartPage); |
| 7432 | nRead = TIFFReadFile(tif, buffer, nToRead); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7433 | if (nRead < nToRead) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7434 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7435 | TIFFErrorExtR(tif, module, |
| 7436 | "Cannot read offset/size for strile around ~%d", strile); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7437 | return 0; |
| 7438 | } |
| 7439 | iStartBefore = -(int)((nOffset - nOffsetStartPage) / sizeofval); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7440 | if (strile + iStartBefore < 0) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7441 | iStartBefore = -strile; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7442 | for (i = iStartBefore; |
| 7443 | (uint32_t)(strile + i) < arraySize && |
| 7444 | _TIFFUnsanitizedAddUInt64AndInt(nOffset, (i + 1) * sizeofvalint) <= |
| 7445 | nOffsetEndPage; |
| 7446 | ++i) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7447 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7448 | if (dirent->tdir_type == TIFF_SHORT) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7449 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7450 | uint16_t val; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7451 | memcpy(&val, |
| 7452 | buffer + (nOffset - nOffsetStartPage) + i * sizeofvalint, |
| 7453 | sizeof(val)); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7454 | if (bSwab) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7455 | TIFFSwabShort(&val); |
| 7456 | panVals[strile + i] = val; |
| 7457 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7458 | else if (dirent->tdir_type == TIFF_LONG) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7459 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7460 | uint32_t val; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7461 | memcpy(&val, |
| 7462 | buffer + (nOffset - nOffsetStartPage) + i * sizeofvalint, |
| 7463 | sizeof(val)); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7464 | if (bSwab) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7465 | TIFFSwabLong(&val); |
| 7466 | panVals[strile + i] = val; |
| 7467 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7468 | else if (dirent->tdir_type == TIFF_LONG8) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7469 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7470 | uint64_t val; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7471 | memcpy(&val, |
| 7472 | buffer + (nOffset - nOffsetStartPage) + i * sizeofvalint, |
| 7473 | sizeof(val)); |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7474 | if (bSwab) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7475 | TIFFSwabLong8(&val); |
| 7476 | panVals[strile + i] = val; |
| 7477 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7478 | else /* if( dirent->tdir_type == TIFF_SLONG8 ) */ |
| 7479 | { |
| 7480 | /* Non conformant data type */ |
| 7481 | int64_t val; |
| 7482 | memcpy(&val, |
| 7483 | buffer + (nOffset - nOffsetStartPage) + i * sizeofvalint, |
| 7484 | sizeof(val)); |
| 7485 | if (bSwab) |
| 7486 | TIFFSwabLong8((uint64_t *)&val); |
| 7487 | panVals[strile + i] = (uint64_t)val; |
| 7488 | } |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7489 | } |
| 7490 | return 1; |
| 7491 | } |
| 7492 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7493 | static int _TIFFFetchStrileValue(TIFF *tif, uint32_t strile, |
| 7494 | TIFFDirEntry *dirent, uint64_t **parray) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7495 | { |
| 7496 | static const char module[] = "_TIFFFetchStrileValue"; |
| 7497 | TIFFDirectory *td = &tif->tif_dir; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7498 | if (strile >= dirent->tdir_count) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7499 | { |
| 7500 | return 0; |
| 7501 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7502 | if (strile >= td->td_stripoffsetbyteallocsize) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7503 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7504 | uint32_t nStripArrayAllocBefore = td->td_stripoffsetbyteallocsize; |
| 7505 | uint32_t nStripArrayAllocNew; |
| 7506 | uint64_t nArraySize64; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7507 | size_t nArraySize; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7508 | uint64_t *offsetArray; |
| 7509 | uint64_t *bytecountArray; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7510 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7511 | if (strile > 1000000) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7512 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7513 | uint64_t filesize = TIFFGetFileSize(tif); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7514 | /* Avoid excessive memory allocation attempt */ |
| 7515 | /* For such a big blockid we need at least a TIFF_LONG per strile */ |
| 7516 | /* for the offset array. */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7517 | if (strile > filesize / sizeof(uint32_t)) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7518 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7519 | TIFFErrorExtR(tif, module, "File too short"); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7520 | return 0; |
| 7521 | } |
| 7522 | } |
| 7523 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7524 | if (td->td_stripoffsetbyteallocsize == 0 && |
| 7525 | td->td_nstrips < 1024 * 1024) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7526 | { |
| 7527 | nStripArrayAllocNew = td->td_nstrips; |
| 7528 | } |
| 7529 | else |
| 7530 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7531 | #define TIFF_MAX(a, b) (((a) > (b)) ? (a) : (b)) |
| 7532 | #define TIFF_MIN(a, b) (((a) < (b)) ? (a) : (b)) |
| 7533 | nStripArrayAllocNew = TIFF_MAX(strile + 1, 1024U * 512U); |
| 7534 | if (nStripArrayAllocNew < 0xFFFFFFFFU / 2) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7535 | nStripArrayAllocNew *= 2; |
| 7536 | nStripArrayAllocNew = TIFF_MIN(nStripArrayAllocNew, td->td_nstrips); |
| 7537 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7538 | assert(strile < nStripArrayAllocNew); |
| 7539 | nArraySize64 = (uint64_t)sizeof(uint64_t) * nStripArrayAllocNew; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7540 | nArraySize = (size_t)(nArraySize64); |
| 7541 | #if SIZEOF_SIZE_T == 4 |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7542 | if (nArraySize != nArraySize64) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7543 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7544 | TIFFErrorExtR(tif, module, |
| 7545 | "Cannot allocate strip offset and bytecount arrays"); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7546 | return 0; |
| 7547 | } |
| 7548 | #endif |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7549 | offsetArray = (uint64_t *)(_TIFFreallocExt(tif, td->td_stripoffset_p, |
| 7550 | nArraySize)); |
| 7551 | bytecountArray = (uint64_t *)(_TIFFreallocExt( |
| 7552 | tif, td->td_stripbytecount_p, nArraySize)); |
| 7553 | if (offsetArray) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7554 | td->td_stripoffset_p = offsetArray; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7555 | if (bytecountArray) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7556 | td->td_stripbytecount_p = bytecountArray; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7557 | if (offsetArray && bytecountArray) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7558 | { |
| 7559 | td->td_stripoffsetbyteallocsize = nStripArrayAllocNew; |
| 7560 | /* Initialize new entries to ~0 / -1 */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7561 | /* coverity[overrun-buffer-arg] */ |
| 7562 | memset(td->td_stripoffset_p + nStripArrayAllocBefore, 0xFF, |
| 7563 | (td->td_stripoffsetbyteallocsize - nStripArrayAllocBefore) * |
| 7564 | sizeof(uint64_t)); |
| 7565 | /* coverity[overrun-buffer-arg] */ |
| 7566 | memset(td->td_stripbytecount_p + nStripArrayAllocBefore, 0xFF, |
| 7567 | (td->td_stripoffsetbyteallocsize - nStripArrayAllocBefore) * |
| 7568 | sizeof(uint64_t)); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7569 | } |
| 7570 | else |
| 7571 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7572 | TIFFErrorExtR(tif, module, |
| 7573 | "Cannot allocate strip offset and bytecount arrays"); |
| 7574 | _TIFFfreeExt(tif, td->td_stripoffset_p); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7575 | td->td_stripoffset_p = NULL; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7576 | _TIFFfreeExt(tif, td->td_stripbytecount_p); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7577 | td->td_stripbytecount_p = NULL; |
| 7578 | td->td_stripoffsetbyteallocsize = 0; |
| 7579 | } |
| 7580 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7581 | if (*parray == NULL || strile >= td->td_stripoffsetbyteallocsize) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7582 | return 0; |
| 7583 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7584 | if (~((*parray)[strile]) == 0) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7585 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7586 | if (!_TIFFPartialReadStripArray(tif, dirent, strile, *parray)) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7587 | { |
| 7588 | (*parray)[strile] = 0; |
| 7589 | return 0; |
| 7590 | } |
| 7591 | } |
| 7592 | |
| 7593 | return 1; |
| 7594 | } |
| 7595 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7596 | static uint64_t _TIFFGetStrileOffsetOrByteCountValue(TIFF *tif, uint32_t strile, |
| 7597 | TIFFDirEntry *dirent, |
| 7598 | uint64_t **parray, |
| 7599 | int *pbErr) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7600 | { |
| 7601 | TIFFDirectory *td = &tif->tif_dir; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7602 | if (pbErr) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7603 | *pbErr = 0; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7604 | if ((tif->tif_flags & TIFF_DEFERSTRILELOAD) && |
| 7605 | !(tif->tif_flags & TIFF_CHOPPEDUPARRAYS)) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7606 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7607 | if (!(tif->tif_flags & TIFF_LAZYSTRILELOAD) || |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7608 | /* If the values may fit in the toff_long/toff_long8 member */ |
| 7609 | /* then use _TIFFFillStriles to simplify _TIFFFetchStrileValue */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7610 | dirent->tdir_count <= 4) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7611 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7612 | if (!_TIFFFillStriles(tif)) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7613 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7614 | if (pbErr) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7615 | *pbErr = 1; |
| 7616 | /* Do not return, as we want this function to always */ |
| 7617 | /* return the same value if called several times with */ |
| 7618 | /* the same arguments */ |
| 7619 | } |
| 7620 | } |
| 7621 | else |
| 7622 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7623 | if (!_TIFFFetchStrileValue(tif, strile, dirent, parray)) |
| 7624 | { |
| 7625 | if (pbErr) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7626 | *pbErr = 1; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7627 | return 0; |
| 7628 | } |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7629 | } |
| 7630 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7631 | if (*parray == NULL || strile >= td->td_nstrips) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7632 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7633 | if (pbErr) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7634 | *pbErr = 1; |
| 7635 | return 0; |
| 7636 | } |
| 7637 | return (*parray)[strile]; |
| 7638 | } |
| 7639 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7640 | /* Return the value of the TileOffsets/StripOffsets array for the specified |
| 7641 | * tile/strile */ |
| 7642 | uint64_t TIFFGetStrileOffset(TIFF *tif, uint32_t strile) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7643 | { |
| 7644 | return TIFFGetStrileOffsetWithErr(tif, strile, NULL); |
| 7645 | } |
| 7646 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7647 | /* Return the value of the TileOffsets/StripOffsets array for the specified |
| 7648 | * tile/strile */ |
| 7649 | uint64_t TIFFGetStrileOffsetWithErr(TIFF *tif, uint32_t strile, int *pbErr) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7650 | { |
| 7651 | TIFFDirectory *td = &tif->tif_dir; |
| 7652 | return _TIFFGetStrileOffsetOrByteCountValue(tif, strile, |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7653 | &(td->td_stripoffset_entry), |
| 7654 | &(td->td_stripoffset_p), pbErr); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7655 | } |
| 7656 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7657 | /* Return the value of the TileByteCounts/StripByteCounts array for the |
| 7658 | * specified tile/strile */ |
| 7659 | uint64_t TIFFGetStrileByteCount(TIFF *tif, uint32_t strile) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7660 | { |
| 7661 | return TIFFGetStrileByteCountWithErr(tif, strile, NULL); |
| 7662 | } |
| 7663 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7664 | /* Return the value of the TileByteCounts/StripByteCounts array for the |
| 7665 | * specified tile/strile */ |
| 7666 | uint64_t TIFFGetStrileByteCountWithErr(TIFF *tif, uint32_t strile, int *pbErr) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7667 | { |
| 7668 | TIFFDirectory *td = &tif->tif_dir; |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7669 | return _TIFFGetStrileOffsetOrByteCountValue( |
| 7670 | tif, strile, &(td->td_stripbytecount_entry), &(td->td_stripbytecount_p), |
| 7671 | pbErr); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7672 | } |
| 7673 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7674 | int _TIFFFillStriles(TIFF *tif) { return _TIFFFillStrilesInternal(tif, 1); } |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7675 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7676 | static int _TIFFFillStrilesInternal(TIFF *tif, int loadStripByteCount) |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 7677 | { |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7678 | register TIFFDirectory *td = &tif->tif_dir; |
| 7679 | int return_value = 1; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7680 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7681 | /* Do not do anything if TIFF_DEFERSTRILELOAD is not set */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7682 | if (!(tif->tif_flags & TIFF_DEFERSTRILELOAD) || |
| 7683 | (tif->tif_flags & TIFF_CHOPPEDUPARRAYS) != 0) |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7684 | return 1; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7685 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7686 | if (tif->tif_flags & TIFF_LAZYSTRILELOAD) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7687 | { |
| 7688 | /* In case of lazy loading, reload completely the arrays */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7689 | _TIFFfreeExt(tif, td->td_stripoffset_p); |
| 7690 | _TIFFfreeExt(tif, td->td_stripbytecount_p); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7691 | td->td_stripoffset_p = NULL; |
| 7692 | td->td_stripbytecount_p = NULL; |
| 7693 | td->td_stripoffsetbyteallocsize = 0; |
| 7694 | tif->tif_flags &= ~TIFF_LAZYSTRILELOAD; |
| 7695 | } |
| 7696 | |
| 7697 | /* If stripoffset array is already loaded, exit with success */ |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7698 | if (td->td_stripoffset_p != NULL) |
| 7699 | return 1; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7700 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7701 | /* If tdir_count was canceled, then we already got there, but in error */ |
| 7702 | if (td->td_stripoffset_entry.tdir_count == 0) |
| 7703 | return 0; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7704 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7705 | if (!TIFFFetchStripThing(tif, &(td->td_stripoffset_entry), td->td_nstrips, |
| 7706 | &td->td_stripoffset_p)) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7707 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7708 | return_value = 0; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7709 | } |
| 7710 | |
| 7711 | if (loadStripByteCount && |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7712 | !TIFFFetchStripThing(tif, &(td->td_stripbytecount_entry), |
| 7713 | td->td_nstrips, &td->td_stripbytecount_p)) |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7714 | { |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7715 | return_value = 0; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7716 | } |
| 7717 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7718 | _TIFFmemset(&(td->td_stripoffset_entry), 0, sizeof(TIFFDirEntry)); |
| 7719 | _TIFFmemset(&(td->td_stripbytecount_entry), 0, sizeof(TIFFDirEntry)); |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7720 | |
| 7721 | #ifdef STRIPBYTECOUNTSORTED_UNUSED |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7722 | if (tif->tif_dir.td_nstrips > 1 && return_value == 1) |
| 7723 | { |
| 7724 | uint32_t strip; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7725 | |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7726 | tif->tif_dir.td_stripbytecountsorted = 1; |
| 7727 | for (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) |
| 7728 | { |
| 7729 | if (tif->tif_dir.td_stripoffset_p[strip - 1] > |
| 7730 | tif->tif_dir.td_stripoffset_p[strip]) |
| 7731 | { |
| 7732 | tif->tif_dir.td_stripbytecountsorted = 0; |
| 7733 | break; |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7734 | } |
kumarashishg | 826308d | 2023-06-23 13:21:22 +0000 | [diff] [blame] | 7735 | } |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 7736 | } |
| 7737 | #endif |
| 7738 | |
| 7739 | return return_value; |
Philip P. Moltmann | ac3d58c | 2016-03-04 15:19:21 -0800 | [diff] [blame] | 7740 | } |