cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % M M AAA GGGG IIIII CCCC % |
| 6 | % MM MM A A G I C % |
| 7 | % M M M AAAAA G GGG I C % |
| 8 | % M M A A G G I C % |
| 9 | % M M A A GGGG IIIII CCCC % |
| 10 | % % |
| 11 | % % |
| 12 | % MagickCore Image Magic Methods % |
| 13 | % % |
| 14 | % Software Design % |
| 15 | % Bob Friesenhahn % |
| 16 | % July 2000 % |
| 17 | % % |
| 18 | % % |
| 19 | % Copyright 1999-2009 ImageMagick Studio LLC, a non-profit organization % |
| 20 | % dedicated to making software imaging solutions freely available. % |
| 21 | % % |
| 22 | % You may not use this file except in compliance with the License. You may % |
| 23 | % obtain a copy of the License at % |
| 24 | % % |
| 25 | % http://www.imagemagick.org/script/license.php % |
| 26 | % % |
| 27 | % Unless required by applicable law or agreed to in writing, software % |
| 28 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 29 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 30 | % See the License for the specific language governing permissions and % |
| 31 | % limitations under the License. % |
| 32 | % % |
| 33 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 34 | % |
| 35 | % |
| 36 | */ |
| 37 | |
| 38 | /* |
| 39 | Include declarations. |
| 40 | */ |
| 41 | #include "magick/studio.h" |
| 42 | #include "magick/blob.h" |
| 43 | #include "magick/client.h" |
| 44 | #include "magick/configure.h" |
| 45 | #include "magick/exception.h" |
| 46 | #include "magick/exception-private.h" |
| 47 | #include "magick/hashmap.h" |
| 48 | #include "magick/magic.h" |
| 49 | #include "magick/memory_.h" |
| 50 | #include "magick/semaphore.h" |
| 51 | #include "magick/string_.h" |
| 52 | #include "magick/token.h" |
| 53 | #include "magick/utility.h" |
| 54 | #include "magick/xml-tree.h" |
| 55 | |
| 56 | /* |
| 57 | Define declarations. |
| 58 | */ |
| 59 | #define MagicFilename "magic.xml" |
| 60 | |
| 61 | /* |
| 62 | Static declarations. |
| 63 | */ |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 64 | typedef struct _MagicMapInfo |
| 65 | { |
| 66 | const char |
| 67 | *name; |
| 68 | |
cristy | e3e77a1 | 2009-10-16 00:47:21 +0000 | [diff] [blame^] | 69 | const MagickOffsetType |
| 70 | offset; |
| 71 | |
cristy | bcdce3d | 2009-10-15 20:04:49 +0000 | [diff] [blame] | 72 | const unsigned char |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 73 | *magic; |
| 74 | |
cristy | e3e77a1 | 2009-10-16 00:47:21 +0000 | [diff] [blame^] | 75 | const size_t |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 76 | length; |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 77 | } MagicMapInfo; |
| 78 | |
cristy | e3e77a1 | 2009-10-16 00:47:21 +0000 | [diff] [blame^] | 79 | #define MagickString(magic) (const unsigned char *) (magic), sizeof(magic)-1 |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 80 | |
| 81 | static const MagicMapInfo |
| 82 | MagicMap[] = |
| 83 | { |
cristy | e3e77a1 | 2009-10-16 00:47:21 +0000 | [diff] [blame^] | 84 | { "AVI", 0, MagickString("RIFF") }, |
| 85 | { "8BIMWTEXT", 0, MagickString("8\000B\000I\000M\000#") }, |
| 86 | { "8BIMTEXT", 0, MagickString("8BIM#") }, |
| 87 | { "8BIM", 0, MagickString("8BIM") }, |
| 88 | { "BMP", 0, MagickString("BA") }, |
| 89 | { "BMP", 0, MagickString("BM") }, |
| 90 | { "BMP", 0, MagickString("CI") }, |
| 91 | { "BMP", 0, MagickString("CP") }, |
| 92 | { "BMP", 0, MagickString("IC") }, |
| 93 | { "BMP", 0, MagickString("PI") }, |
| 94 | { "CALS", 21, MagickString("version: MIL-STD-1840") }, |
| 95 | { "CALS", 0, MagickString("srcdocid:") }, |
| 96 | { "CALS", 9, MagickString("srcdocid:") }, |
| 97 | { "CALS", 8, MagickString("rorient:") }, |
| 98 | { "CGM", 0, MagickString("BEGMF") }, |
| 99 | { "CIN", 0, MagickString("\200\052\137\327") }, |
| 100 | { "CRW", 0, MagickString("II\x1a\x00\x00\x00HEAPCCDR") }, |
| 101 | { "DCM", 128, MagickString("DICM") }, |
| 102 | { "DCX", 0, MagickString("\261\150\336\72") }, |
| 103 | { "DIB", 0, MagickString("\050\000") }, |
| 104 | { "DDS", 0, MagickString("DDS ") }, |
| 105 | { "DJVU", 0, MagickString("AT&TFORM") }, |
| 106 | { "DOT", 0, MagickString("digraph") }, |
| 107 | { "DPX", 0, MagickString("SDPX") }, |
| 108 | { "DPX", 0, MagickString("XPDS") }, |
| 109 | { "EMF", 40, MagickString("\040\105\115\106\000\000\001\000") }, |
| 110 | { "EPT", 0, MagickString("\305\320\323\306") }, |
| 111 | { "EXR", 0, MagickString("\166\057\061\001") }, |
| 112 | { "FAX", 0, MagickString("DFAX") }, |
| 113 | { "FIG", 0, MagickString("#FIG") }, |
| 114 | { "FITS", 0, MagickString("IT0") }, |
| 115 | { "FITS", 0, MagickString("SIMPLE") }, |
| 116 | { "FPX", 0, MagickString("\320\317\021\340") }, |
| 117 | { "GIF", 0, MagickString("GIF8") }, |
| 118 | { "GPLT", 0, MagickString("#!/usr/local/bin/gnuplot") }, |
| 119 | { "HDF", 1, MagickString("HDF") }, |
| 120 | { "HPGL", 0, MagickString("IN;") }, |
| 121 | { "HPGL", 0, MagickString("\033E\033") }, |
| 122 | { "HTML", 1, MagickString("HTML") }, |
| 123 | { "HTML", 1, MagickString("html") }, |
| 124 | { "ILBM", 8, MagickString("ILBM") }, |
| 125 | { "IPTCWTEXT", 0, MagickString("\062\000#\000\060\000=\000\042\000&\000#\000\060\000;\000&\000#\000\062\000;\000\042\000") }, |
| 126 | { "IPTCTEXT", 0, MagickString("2#0=\042�\042") }, |
| 127 | { "IPTC", 0, MagickString("\034\002") }, |
| 128 | { "JNG", 0, MagickString("\213JNG\r\n\032\n") }, |
| 129 | { "JPEG", 0, MagickString("\377\330\377") }, |
| 130 | { "JPC", 0, MagickString("\377\117") }, |
| 131 | { "JP2", 4, MagickString("\152\120\040\040\015") }, |
| 132 | { "MIFF", 0, MagickString("Id=ImageMagick") }, |
| 133 | { "MIFF", 0, MagickString("id=ImageMagick") }, |
| 134 | { "MNG", 0, MagickString("\212MNG\r\n\032\n") }, |
| 135 | { "MPC", 0, MagickString("id=MagickCache") }, |
| 136 | { "MPEG", 0, MagickString("\000\000\001\263") }, |
| 137 | { "MRW", 0, MagickString("\x00MRM") }, |
| 138 | { "MVG", 0, MagickString("push graphic-context") }, |
| 139 | { "ORF", 0, MagickString("IIRO\x08\x00\x00\x00") }, |
| 140 | { "PCD", 2048, MagickString("PCD_") }, |
| 141 | { "PCL", 0, MagickString("\033E\033") }, |
| 142 | { "PCX", 0, MagickString("\012\002") }, |
| 143 | { "PCX", 0, MagickString("\012\005") }, |
| 144 | { "PDB", 60, MagickString("vIMGView") }, |
| 145 | { "PDF", 0, MagickString("%PDF-") }, |
| 146 | { "PFA", 0, MagickString("%!PS-AdobeFont-1.0") }, |
| 147 | { "PFB", 6, MagickString("%!PS-AdobeFont-1.0") }, |
| 148 | { "PGX", 0, MagickString("\050\107\020\115\046") }, |
| 149 | { "PICT", 522, MagickString("\000\021\002\377\014\000") }, |
| 150 | { "PNG", 0, MagickString("\211PNG\r\n\032\n") }, |
| 151 | { "PNM", 0, MagickString("P1") }, |
| 152 | { "PNM", 0, MagickString("P2") }, |
| 153 | { "PNM", 0, MagickString("P3") }, |
| 154 | { "PNM", 0, MagickString("P4") }, |
| 155 | { "PNM", 0, MagickString("P5") }, |
| 156 | { "PNM", 0, MagickString("P6") }, |
| 157 | { "PNM", 0, MagickString("P7") }, |
| 158 | { "PNM", 0, MagickString("PF") }, |
| 159 | { "PNM", 0, MagickString("Pf") }, |
| 160 | { "PS", 0, MagickString("%!") }, |
| 161 | { "PS", 0, MagickString("\004%!") }, |
| 162 | { "PS", 0, MagickString("\305\320\323\306") }, |
| 163 | { "PSD", 0, MagickString("8BPS") }, |
| 164 | { "PWP", 0, MagickString("SFW95") }, |
| 165 | { "RAF", 0, MagickString("FUJIFILMCCD-RAW ") }, |
| 166 | { "RAD", 0, MagickString("#?RADIANCE") }, |
| 167 | { "RAD", 0, MagickString("VIEW= ") }, |
| 168 | { "RLE", 0, MagickString("\122\314") }, |
| 169 | { "SCT", 0, MagickString("CT") }, |
| 170 | { "SFW", 0, MagickString("SFW94") }, |
| 171 | { "SGI", 0, MagickString("\001\332") }, |
| 172 | { "SUN", 0, MagickString("\131\246\152\225") }, |
| 173 | { "SVG", 1, MagickString("?XML") }, |
| 174 | { "SVG", 1, MagickString("?xml") }, |
| 175 | { "TIFF", 0, MagickString("\115\115\000\052") }, |
| 176 | { "TIFF", 0, MagickString("\111\111\052\000") }, |
| 177 | { "TIFF64", 0, MagickString("\115\115\000\053\000\010\000\000") }, |
| 178 | { "TIFF64", 0, MagickString("\111\111\053\000\010\000\000\000") }, |
| 179 | { "TXT", 0, MagickString("# ImageMagick pixel enumeration:") }, |
| 180 | { "VICAR", 0, MagickString("LBLSIZE") }, |
| 181 | { "VICAR", 0, MagickString("NJPL1I") }, |
| 182 | { "VIFF", 0, MagickString("\253\001") }, |
| 183 | { "WMF", 0, MagickString("\327\315\306\232") }, |
| 184 | { "WMF", 0, MagickString("\001\000\011\000") }, |
| 185 | { "WPG", 0, MagickString("\377WPC") }, |
| 186 | { "XBM", 0, MagickString("#define") }, |
| 187 | { "XCF", 0, MagickString("gimp xcf") }, |
| 188 | { "XEF", 0, MagickString("FOVb") }, |
| 189 | { "XPM", 1, MagickString("* XPM *") }, |
| 190 | { "XWD", 4, MagickString("\007\000\000") }, |
| 191 | { "XWD", 5, MagickString("\000\000\007") }, |
| 192 | { (const char *) NULL, 0, MagickString((const char *) NULL) } |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 193 | }; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 194 | |
| 195 | static LinkedListInfo |
| 196 | *magic_list = (LinkedListInfo *) NULL; |
| 197 | |
| 198 | static SemaphoreInfo |
| 199 | *magic_semaphore = (SemaphoreInfo *) NULL; |
| 200 | |
| 201 | static volatile MagickBooleanType |
| 202 | instantiate_magic = MagickFalse; |
| 203 | |
| 204 | /* |
| 205 | Forward declarations. |
| 206 | */ |
| 207 | static MagickBooleanType |
| 208 | InitializeMagicList(ExceptionInfo *), |
| 209 | LoadMagicLists(const char *,ExceptionInfo *); |
| 210 | |
| 211 | /* |
| 212 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 213 | % % |
| 214 | % % |
| 215 | % % |
| 216 | + D e s t r o y M a g i c L i s t % |
| 217 | % % |
| 218 | % % |
| 219 | % % |
| 220 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 221 | % |
| 222 | % DestroyMagicList() deallocates memory associated with the magic list. |
| 223 | % |
| 224 | % The format of the DestroyMagicList method is: |
| 225 | % |
| 226 | % DestroyMagicList(void) |
| 227 | % |
| 228 | */ |
| 229 | |
| 230 | static void *DestroyMagicElement(void *magic_info) |
| 231 | { |
| 232 | register MagicInfo |
| 233 | *p; |
| 234 | |
| 235 | p=(MagicInfo *) magic_info; |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 236 | if (p->exempt == MagickFalse) |
| 237 | { |
| 238 | if (p->path != (char *) NULL) |
| 239 | p->path=DestroyString(p->path); |
| 240 | if (p->name != (char *) NULL) |
| 241 | p->name=DestroyString(p->name); |
| 242 | if (p->target != (char *) NULL) |
| 243 | p->target=DestroyString(p->target); |
| 244 | if (p->magic != (unsigned char *) NULL) |
| 245 | p->magic=(unsigned char *) RelinquishMagickMemory(p->magic); |
| 246 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 247 | p=(MagicInfo *) RelinquishMagickMemory(p); |
| 248 | return((void *) NULL); |
| 249 | } |
| 250 | |
| 251 | MagickExport void DestroyMagicList(void) |
| 252 | { |
| 253 | AcquireSemaphoreInfo(&magic_semaphore); |
| 254 | if (magic_list != (LinkedListInfo *) NULL) |
| 255 | magic_list=DestroyLinkedList(magic_list,DestroyMagicElement); |
| 256 | instantiate_magic=MagickFalse; |
| 257 | RelinquishSemaphoreInfo(magic_semaphore); |
| 258 | DestroySemaphoreInfo(&magic_semaphore); |
| 259 | } |
| 260 | |
| 261 | /* |
| 262 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 263 | % % |
| 264 | % % |
| 265 | % % |
| 266 | + G e t M a g i c I n f o % |
| 267 | % % |
| 268 | % % |
| 269 | % % |
| 270 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 271 | % |
| 272 | % GetMagicInfo() searches the magic list for the specified name and if found |
| 273 | % returns attributes for that magic. |
| 274 | % |
| 275 | % The format of the GetMagicInfo method is: |
| 276 | % |
| 277 | % const MagicInfo *GetMagicInfo(const unsigned char *magic, |
| 278 | % const size_t length,ExceptionInfo *exception) |
| 279 | % |
| 280 | % A description of each parameter follows: |
| 281 | % |
| 282 | % o magic: A binary string generally representing the first few characters |
| 283 | % of the image file or blob. |
| 284 | % |
| 285 | % o length: the length of the binary signature. |
| 286 | % |
| 287 | % o exception: return any errors or warnings in this structure. |
| 288 | % |
| 289 | */ |
| 290 | MagickExport const MagicInfo *GetMagicInfo(const unsigned char *magic, |
| 291 | const size_t length,ExceptionInfo *exception) |
| 292 | { |
| 293 | register const MagicInfo |
| 294 | *p; |
| 295 | |
| 296 | assert(exception != (ExceptionInfo *) NULL); |
| 297 | if ((magic_list == (LinkedListInfo *) NULL) || |
| 298 | (instantiate_magic == MagickFalse)) |
| 299 | if (InitializeMagicList(exception) == MagickFalse) |
| 300 | return((const MagicInfo *) NULL); |
| 301 | if ((magic_list == (LinkedListInfo *) NULL) || |
| 302 | (IsLinkedListEmpty(magic_list) != MagickFalse)) |
| 303 | return((const MagicInfo *) NULL); |
| 304 | if (magic == (const unsigned char *) NULL) |
| 305 | return((const MagicInfo *) GetValueFromLinkedList(magic_list,0)); |
| 306 | if (length == 0) |
| 307 | return((const MagicInfo *) NULL); |
| 308 | /* |
| 309 | Search for magic tag. |
| 310 | */ |
| 311 | AcquireSemaphoreInfo(&magic_semaphore); |
| 312 | ResetLinkedListIterator(magic_list); |
| 313 | p=(const MagicInfo *) GetNextValueInLinkedList(magic_list); |
| 314 | while (p != (const MagicInfo *) NULL) |
| 315 | { |
| 316 | assert(p->offset >= 0); |
| 317 | if (((size_t) (p->offset+p->length) <= length) && |
| 318 | (memcmp(magic+p->offset,p->magic,p->length) == 0)) |
| 319 | break; |
| 320 | p=(const MagicInfo *) GetNextValueInLinkedList(magic_list); |
| 321 | } |
| 322 | if (p != (const MagicInfo *) NULL) |
| 323 | (void) InsertValueInLinkedList(magic_list,0, |
| 324 | RemoveElementByValueFromLinkedList(magic_list,p)); |
| 325 | RelinquishSemaphoreInfo(magic_semaphore); |
| 326 | return(p); |
| 327 | } |
| 328 | |
| 329 | /* |
| 330 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 331 | % % |
| 332 | % % |
| 333 | % % |
| 334 | % G e t M a g i c I n f o L i s t % |
| 335 | % % |
| 336 | % % |
| 337 | % % |
| 338 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 339 | % |
| 340 | % GetMagicInfoList() returns any image aliases that match the specified |
| 341 | % pattern. |
| 342 | % |
| 343 | % The magic of the GetMagicInfoList function is: |
| 344 | % |
| 345 | % const MagicInfo **GetMagicInfoList(const char *pattern, |
| 346 | % unsigned long *number_aliases,ExceptionInfo *exception) |
| 347 | % |
| 348 | % A description of each parameter follows: |
| 349 | % |
| 350 | % o pattern: Specifies a pointer to a text string containing a pattern. |
| 351 | % |
| 352 | % o number_aliases: This integer returns the number of aliases in the |
| 353 | % list. |
| 354 | % |
| 355 | % o exception: return any errors or warnings in this structure. |
| 356 | % |
| 357 | */ |
| 358 | |
| 359 | #if defined(__cplusplus) || defined(c_plusplus) |
| 360 | extern "C" { |
| 361 | #endif |
| 362 | |
| 363 | static int MagicInfoCompare(const void *x,const void *y) |
| 364 | { |
| 365 | const MagicInfo |
| 366 | **p, |
| 367 | **q; |
| 368 | |
| 369 | p=(const MagicInfo **) x, |
| 370 | q=(const MagicInfo **) y; |
| 371 | if (LocaleCompare((*p)->path,(*q)->path) == 0) |
| 372 | return(LocaleCompare((*p)->name,(*q)->name)); |
| 373 | return(LocaleCompare((*p)->path,(*q)->path)); |
| 374 | } |
| 375 | |
| 376 | #if defined(__cplusplus) || defined(c_plusplus) |
| 377 | } |
| 378 | #endif |
| 379 | |
| 380 | MagickExport const MagicInfo **GetMagicInfoList(const char *pattern, |
| 381 | unsigned long *number_aliases,ExceptionInfo *exception) |
| 382 | { |
| 383 | const MagicInfo |
| 384 | **aliases; |
| 385 | |
| 386 | register const MagicInfo |
| 387 | *p; |
| 388 | |
| 389 | register long |
| 390 | i; |
| 391 | |
| 392 | /* |
| 393 | Allocate magic list. |
| 394 | */ |
| 395 | assert(pattern != (char *) NULL); |
| 396 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern); |
| 397 | assert(number_aliases != (unsigned long *) NULL); |
| 398 | *number_aliases=0; |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 399 | p=GetMagicInfo((const unsigned char *) NULL,0,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 400 | if (p == (const MagicInfo *) NULL) |
| 401 | return((const MagicInfo **) NULL); |
| 402 | aliases=(const MagicInfo **) AcquireQuantumMemory((size_t) |
| 403 | GetNumberOfElementsInLinkedList(magic_list)+1UL,sizeof(*aliases)); |
| 404 | if (aliases == (const MagicInfo **) NULL) |
| 405 | return((const MagicInfo **) NULL); |
| 406 | /* |
| 407 | Generate magic list. |
| 408 | */ |
| 409 | AcquireSemaphoreInfo(&magic_semaphore); |
| 410 | ResetLinkedListIterator(magic_list); |
| 411 | p=(const MagicInfo *) GetNextValueInLinkedList(magic_list); |
| 412 | for (i=0; p != (const MagicInfo *) NULL; ) |
| 413 | { |
| 414 | if ((p->stealth == MagickFalse) && |
| 415 | (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse)) |
| 416 | aliases[i++]=p; |
| 417 | p=(const MagicInfo *) GetNextValueInLinkedList(magic_list); |
| 418 | } |
| 419 | RelinquishSemaphoreInfo(magic_semaphore); |
| 420 | qsort((void *) aliases,(size_t) i,sizeof(*aliases),MagicInfoCompare); |
| 421 | aliases[i]=(MagicInfo *) NULL; |
| 422 | *number_aliases=(unsigned long) i; |
| 423 | return(aliases); |
| 424 | } |
| 425 | |
| 426 | /* |
| 427 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 428 | % % |
| 429 | % % |
| 430 | % % |
| 431 | % G e t M a g i c L i s t % |
| 432 | % % |
| 433 | % % |
| 434 | % % |
| 435 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 436 | % |
| 437 | % GetMagicList() returns any image format aliases that match the specified |
| 438 | % pattern. |
| 439 | % |
| 440 | % The format of the GetMagicList function is: |
| 441 | % |
| 442 | % char **GetMagicList(const char *pattern,unsigned long *number_aliases, |
| 443 | % ExceptionInfo *exception) |
| 444 | % |
| 445 | % A description of each parameter follows: |
| 446 | % |
| 447 | % o pattern: Specifies a pointer to a text string containing a pattern. |
| 448 | % |
| 449 | % o number_aliases: This integer returns the number of image format aliases |
| 450 | % in the list. |
| 451 | % |
| 452 | % o exception: return any errors or warnings in this structure. |
| 453 | % |
| 454 | */ |
| 455 | |
| 456 | #if defined(__cplusplus) || defined(c_plusplus) |
| 457 | extern "C" { |
| 458 | #endif |
| 459 | |
| 460 | static int MagicCompare(const void *x,const void *y) |
| 461 | { |
| 462 | register const char |
| 463 | *p, |
| 464 | *q; |
| 465 | |
| 466 | p=(const char *) x; |
| 467 | q=(const char *) y; |
| 468 | return(LocaleCompare(p,q)); |
| 469 | } |
| 470 | |
| 471 | #if defined(__cplusplus) || defined(c_plusplus) |
| 472 | } |
| 473 | #endif |
| 474 | |
| 475 | MagickExport char **GetMagicList(const char *pattern, |
| 476 | unsigned long *number_aliases,ExceptionInfo *exception) |
| 477 | { |
| 478 | char |
| 479 | **aliases; |
| 480 | |
| 481 | register const MagicInfo |
| 482 | *p; |
| 483 | |
| 484 | register long |
| 485 | i; |
| 486 | |
| 487 | /* |
| 488 | Allocate configure list. |
| 489 | */ |
| 490 | assert(pattern != (char *) NULL); |
| 491 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern); |
| 492 | assert(number_aliases != (unsigned long *) NULL); |
| 493 | *number_aliases=0; |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 494 | p=GetMagicInfo((const unsigned char *) NULL,0,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 495 | if (p == (const MagicInfo *) NULL) |
| 496 | return((char **) NULL); |
| 497 | aliases=(char **) AcquireQuantumMemory((size_t) |
| 498 | GetNumberOfElementsInLinkedList(magic_list)+1UL,sizeof(*aliases)); |
| 499 | if (aliases == (char **) NULL) |
| 500 | return((char **) NULL); |
| 501 | AcquireSemaphoreInfo(&magic_semaphore); |
| 502 | ResetLinkedListIterator(magic_list); |
| 503 | p=(const MagicInfo *) GetNextValueInLinkedList(magic_list); |
| 504 | for (i=0; p != (const MagicInfo *) NULL; ) |
| 505 | { |
| 506 | if ((p->stealth == MagickFalse) && |
| 507 | (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse)) |
| 508 | aliases[i++]=ConstantString(p->name); |
| 509 | p=(const MagicInfo *) GetNextValueInLinkedList(magic_list); |
| 510 | } |
| 511 | RelinquishSemaphoreInfo(magic_semaphore); |
| 512 | qsort((void *) aliases,(size_t) i,sizeof(*aliases),MagicCompare); |
| 513 | aliases[i]=(char *) NULL; |
| 514 | *number_aliases=(unsigned long) i; |
| 515 | return(aliases); |
| 516 | } |
| 517 | |
| 518 | /* |
| 519 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 520 | % % |
| 521 | % % |
| 522 | % % |
| 523 | % G e t M a g i c N a m e % |
| 524 | % % |
| 525 | % % |
| 526 | % % |
| 527 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 528 | % |
| 529 | % GetMagicName() returns the name associated with the magic. |
| 530 | % |
| 531 | % The format of the GetMagicName method is: |
| 532 | % |
| 533 | % const char *GetMagicName(const MagicInfo *magic_info) |
| 534 | % |
| 535 | % A description of each parameter follows: |
| 536 | % |
| 537 | % o magic_info: The magic info. |
| 538 | % |
| 539 | */ |
| 540 | MagickExport const char *GetMagicName(const MagicInfo *magic_info) |
| 541 | { |
| 542 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 543 | assert(magic_info != (MagicInfo *) NULL); |
| 544 | assert(magic_info->signature == MagickSignature); |
| 545 | return(magic_info->name); |
| 546 | } |
| 547 | |
| 548 | /* |
| 549 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 550 | % % |
| 551 | % % |
| 552 | % % |
| 553 | + I n i t i a l i z e M a g i c L i s t % |
| 554 | % % |
| 555 | % % |
| 556 | % % |
| 557 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 558 | % |
| 559 | % InitializeMagicList() initializes the magic list. |
| 560 | % |
| 561 | % The format of the InitializeMagicList method is: |
| 562 | % |
| 563 | % MagickBooleanType InitializeMagicList(ExceptionInfo *exception) |
| 564 | % |
| 565 | % A description of each parameter follows. |
| 566 | % |
| 567 | % o exception: return any errors or warnings in this structure. |
| 568 | % |
| 569 | */ |
| 570 | static MagickBooleanType InitializeMagicList(ExceptionInfo *exception) |
| 571 | { |
| 572 | if ((magic_list == (LinkedListInfo *) NULL) && |
| 573 | (instantiate_magic == MagickFalse)) |
| 574 | { |
| 575 | AcquireSemaphoreInfo(&magic_semaphore); |
| 576 | if ((magic_list == (LinkedListInfo *) NULL) && |
| 577 | (instantiate_magic == MagickFalse)) |
| 578 | { |
| 579 | (void) LoadMagicLists(MagicFilename,exception); |
| 580 | instantiate_magic=MagickTrue; |
| 581 | } |
| 582 | RelinquishSemaphoreInfo(magic_semaphore); |
| 583 | } |
| 584 | return(magic_list != (LinkedListInfo *) NULL ? MagickTrue : MagickFalse); |
| 585 | } |
| 586 | |
| 587 | /* |
| 588 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 589 | % % |
| 590 | % % |
| 591 | % % |
| 592 | % L i s t M a g i c I n f o % |
| 593 | % % |
| 594 | % % |
| 595 | % % |
| 596 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 597 | % |
| 598 | % ListMagicInfo() lists the magic info to a file. |
| 599 | % |
| 600 | % The format of the ListMagicInfo method is: |
| 601 | % |
| 602 | % MagickBooleanType ListMagicInfo(FILE *file,ExceptionInfo *exception) |
| 603 | % |
| 604 | % A description of each parameter follows. |
| 605 | % |
| 606 | % o file: An pointer to a FILE. |
| 607 | % |
| 608 | % o exception: return any errors or warnings in this structure. |
| 609 | % |
| 610 | */ |
| 611 | MagickExport MagickBooleanType ListMagicInfo(FILE *file, |
| 612 | ExceptionInfo *exception) |
| 613 | { |
| 614 | const char |
| 615 | *path; |
| 616 | |
| 617 | const MagicInfo |
| 618 | **magic_info; |
| 619 | |
| 620 | long |
| 621 | j; |
| 622 | |
| 623 | register long |
| 624 | i; |
| 625 | |
| 626 | unsigned long |
| 627 | number_aliases; |
| 628 | |
| 629 | if (file == (const FILE *) NULL) |
| 630 | file=stdout; |
| 631 | magic_info=GetMagicInfoList("*",&number_aliases,exception); |
| 632 | if (magic_info == (const MagicInfo **) NULL) |
| 633 | return(MagickFalse); |
| 634 | j=0; |
| 635 | path=(const char *) NULL; |
| 636 | for (i=0; i < (long) number_aliases; i++) |
| 637 | { |
| 638 | if (magic_info[i]->stealth != MagickFalse) |
| 639 | continue; |
| 640 | if ((path == (const char *) NULL) || |
| 641 | (LocaleCompare(path,magic_info[i]->path) != 0)) |
| 642 | { |
| 643 | if (magic_info[i]->path != (char *) NULL) |
| 644 | (void) fprintf(file,"\nPath: %s\n\n",magic_info[i]->path); |
| 645 | (void) fprintf(file,"Name Offset Target\n"); |
| 646 | (void) fprintf(file,"-------------------------------------------------" |
| 647 | "------------------------------\n"); |
| 648 | } |
| 649 | path=magic_info[i]->path; |
| 650 | (void) fprintf(file,"%s",magic_info[i]->name); |
| 651 | for (j=(long) strlen(magic_info[i]->name); j <= 9; j++) |
| 652 | (void) fprintf(file," "); |
| 653 | (void) fprintf(file,"%6ld ",(long) magic_info[i]->offset); |
| 654 | if (magic_info[i]->target != (char *) NULL) |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 655 | { |
| 656 | register long |
| 657 | j; |
| 658 | |
| 659 | for (j=0; magic_info[i]->target[j] != '\0'; j++) |
| 660 | if (isprint((int) ((unsigned char) magic_info[i]->target[j])) != 0) |
| 661 | (void) fprintf(file,"%c",magic_info[i]->target[j]); |
| 662 | else |
cristy | 5093192 | 2009-10-15 18:59:59 +0000 | [diff] [blame] | 663 | (void) fprintf(file,"\\%03o",(unsigned int) |
| 664 | ((unsigned char) magic_info[i]->target[j])); |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 665 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 666 | (void) fprintf(file,"\n"); |
| 667 | } |
| 668 | (void) fflush(file); |
| 669 | magic_info=(const MagicInfo **) RelinquishMagickMemory((void *) magic_info); |
| 670 | return(MagickTrue); |
| 671 | } |
| 672 | |
| 673 | /* |
| 674 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 675 | % % |
| 676 | % % |
| 677 | % % |
| 678 | + L o a d M a g i c L i s t % |
| 679 | % % |
| 680 | % % |
| 681 | % % |
| 682 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 683 | % |
| 684 | % LoadMagicList() loads the magic configuration file which provides a mapping |
| 685 | % between magic attributes and a magic name. |
| 686 | % |
| 687 | % The format of the LoadMagicList method is: |
| 688 | % |
| 689 | % MagickBooleanType LoadMagicList(const char *xml,const char *filename, |
| 690 | % const unsigned long depth,ExceptionInfo *exception) |
| 691 | % |
| 692 | % A description of each parameter follows: |
| 693 | % |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 694 | % o xml: The magic list in XML format. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 695 | % |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 696 | % o filename: The magic list filename. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 697 | % |
| 698 | % o depth: depth of <include /> statements. |
| 699 | % |
| 700 | % o exception: return any errors or warnings in this structure. |
| 701 | % |
| 702 | */ |
| 703 | static MagickBooleanType LoadMagicList(const char *xml,const char *filename, |
| 704 | const unsigned long depth,ExceptionInfo *exception) |
| 705 | { |
| 706 | char |
| 707 | keyword[MaxTextExtent], |
| 708 | *token; |
| 709 | |
| 710 | const char |
| 711 | *q; |
| 712 | |
| 713 | MagickBooleanType |
| 714 | status; |
| 715 | |
| 716 | MagicInfo |
| 717 | *magic_info; |
| 718 | |
| 719 | /* |
| 720 | Load the magic map file. |
| 721 | */ |
| 722 | (void) LogMagickEvent(ConfigureEvent,GetMagickModule(), |
| 723 | "Loading magic configure file \"%s\" ...",filename); |
| 724 | if (xml == (char *) NULL) |
| 725 | return(MagickFalse); |
| 726 | if (magic_list == (LinkedListInfo *) NULL) |
cristy | e3e77a1 | 2009-10-16 00:47:21 +0000 | [diff] [blame^] | 727 | { |
| 728 | magic_list=NewLinkedList(0); |
| 729 | if (magic_list == (LinkedListInfo *) NULL) |
| 730 | { |
| 731 | ThrowFileException(exception,ResourceLimitError, |
| 732 | "MemoryAllocationFailed",filename); |
| 733 | return(MagickFalse); |
| 734 | } |
| 735 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 736 | status=MagickTrue; |
| 737 | magic_info=(MagicInfo *) NULL; |
| 738 | token=AcquireString(xml); |
| 739 | for (q=(char *) xml; *q != '\0'; ) |
| 740 | { |
| 741 | /* |
| 742 | Interpret XML. |
| 743 | */ |
| 744 | GetMagickToken(q,&q,token); |
| 745 | if (*token == '\0') |
| 746 | break; |
| 747 | (void) CopyMagickString(keyword,token,MaxTextExtent); |
| 748 | if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0) |
| 749 | { |
| 750 | /* |
| 751 | Doctype element. |
| 752 | */ |
| 753 | while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0')) |
| 754 | GetMagickToken(q,&q,token); |
| 755 | continue; |
| 756 | } |
| 757 | if (LocaleNCompare(keyword,"<!--",4) == 0) |
| 758 | { |
| 759 | /* |
| 760 | Comment element. |
| 761 | */ |
| 762 | while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0')) |
| 763 | GetMagickToken(q,&q,token); |
| 764 | continue; |
| 765 | } |
| 766 | if (LocaleCompare(keyword,"<include") == 0) |
| 767 | { |
| 768 | /* |
| 769 | Include element. |
| 770 | */ |
| 771 | while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0')) |
| 772 | { |
| 773 | (void) CopyMagickString(keyword,token,MaxTextExtent); |
| 774 | GetMagickToken(q,&q,token); |
| 775 | if (*token != '=') |
| 776 | continue; |
| 777 | GetMagickToken(q,&q,token); |
| 778 | if (LocaleCompare(keyword,"file") == 0) |
| 779 | { |
| 780 | if (depth > 200) |
| 781 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 782 | ConfigureError,"IncludeElementNestedTooDeeply","`%s'",token); |
| 783 | else |
| 784 | { |
| 785 | char |
| 786 | path[MaxTextExtent], |
| 787 | *xml; |
| 788 | |
| 789 | GetPathComponent(filename,HeadPath,path); |
| 790 | if (*path != '\0') |
| 791 | (void) ConcatenateMagickString(path,DirectorySeparator, |
| 792 | MaxTextExtent); |
| 793 | if (*token == *DirectorySeparator) |
| 794 | (void) CopyMagickString(path,token,MaxTextExtent); |
| 795 | else |
| 796 | (void) ConcatenateMagickString(path,token,MaxTextExtent); |
| 797 | xml=FileToString(path,~0,exception); |
| 798 | if (xml != (char *) NULL) |
| 799 | { |
| 800 | status=LoadMagicList(xml,path,depth+1,exception); |
| 801 | xml=(char *) RelinquishMagickMemory(xml); |
| 802 | } |
| 803 | } |
| 804 | } |
| 805 | } |
| 806 | continue; |
| 807 | } |
| 808 | if (LocaleCompare(keyword,"<magic") == 0) |
| 809 | { |
| 810 | /* |
| 811 | Magic element. |
| 812 | */ |
| 813 | magic_info=(MagicInfo *) AcquireMagickMemory(sizeof(*magic_info)); |
| 814 | if (magic_info == (MagicInfo *) NULL) |
| 815 | ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); |
| 816 | (void) ResetMagickMemory(magic_info,0,sizeof(*magic_info)); |
| 817 | magic_info->path=ConstantString(filename); |
cristy | e3e77a1 | 2009-10-16 00:47:21 +0000 | [diff] [blame^] | 818 | magic_info->exempt=MagickFalse; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 819 | magic_info->signature=MagickSignature; |
| 820 | continue; |
| 821 | } |
| 822 | if (magic_info == (MagicInfo *) NULL) |
| 823 | continue; |
| 824 | if (LocaleCompare(keyword,"/>") == 0) |
| 825 | { |
| 826 | status=AppendValueToLinkedList(magic_list,magic_info); |
| 827 | if (status == MagickFalse) |
| 828 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 829 | ResourceLimitError,"MemoryAllocationFailed","`%s'", |
| 830 | magic_info->name); |
| 831 | magic_info=(MagicInfo *) NULL; |
| 832 | } |
| 833 | GetMagickToken(q,(const char **) NULL,token); |
| 834 | if (*token != '=') |
| 835 | continue; |
| 836 | GetMagickToken(q,&q,token); |
| 837 | GetMagickToken(q,&q,token); |
| 838 | switch (*keyword) |
| 839 | { |
| 840 | case 'N': |
| 841 | case 'n': |
| 842 | { |
| 843 | if (LocaleCompare((char *) keyword,"name") == 0) |
| 844 | { |
| 845 | magic_info->name=ConstantString(token); |
| 846 | break; |
| 847 | } |
| 848 | break; |
| 849 | } |
| 850 | case 'O': |
| 851 | case 'o': |
| 852 | { |
| 853 | if (LocaleCompare((char *) keyword,"offset") == 0) |
| 854 | { |
| 855 | magic_info->offset=(MagickOffsetType) atol(token); |
| 856 | break; |
| 857 | } |
| 858 | break; |
| 859 | } |
| 860 | case 'S': |
| 861 | case 's': |
| 862 | { |
| 863 | if (LocaleCompare((char *) keyword,"stealth") == 0) |
| 864 | { |
| 865 | magic_info->stealth=IsMagickTrue(token); |
| 866 | break; |
| 867 | } |
| 868 | break; |
| 869 | } |
| 870 | case 'T': |
| 871 | case 't': |
| 872 | { |
| 873 | if (LocaleCompare((char *) keyword,"target") == 0) |
| 874 | { |
| 875 | char |
| 876 | *p; |
| 877 | |
| 878 | register unsigned char |
| 879 | *q; |
| 880 | |
| 881 | size_t |
| 882 | length; |
| 883 | |
| 884 | length=strlen(token); |
| 885 | magic_info->target=ConstantString(token); |
| 886 | magic_info->magic=(unsigned char *) ConstantString(token); |
| 887 | q=magic_info->magic; |
| 888 | for (p=magic_info->target; *p != '\0'; ) |
| 889 | { |
| 890 | if (*p == '\\') |
| 891 | { |
| 892 | p++; |
| 893 | if (isdigit((int) ((unsigned char) *p)) != 0) |
| 894 | { |
| 895 | char |
| 896 | *end; |
| 897 | |
| 898 | *q++=(unsigned char) strtol(p,&end,8); |
| 899 | p+=(end-p); |
| 900 | magic_info->length++; |
| 901 | continue; |
| 902 | } |
| 903 | switch (*p) |
| 904 | { |
| 905 | case 'b': *q='\b'; break; |
| 906 | case 'f': *q='\f'; break; |
| 907 | case 'n': *q='\n'; break; |
| 908 | case 'r': *q='\r'; break; |
| 909 | case 't': *q='\t'; break; |
| 910 | case 'v': *q='\v'; break; |
| 911 | case 'a': *q='a'; break; |
| 912 | case '?': *q='\?'; break; |
| 913 | default: *q=(unsigned char) (*p); break; |
| 914 | } |
| 915 | p++; |
| 916 | q++; |
| 917 | magic_info->length++; |
| 918 | continue; |
| 919 | } |
| 920 | else |
| 921 | if (LocaleNCompare(p,"&",5) == 0) |
| 922 | (void) CopyMagickString(p+1,p+5,length-magic_info->length); |
| 923 | *q++=(unsigned char) (*p++); |
| 924 | magic_info->length++; |
| 925 | } |
| 926 | break; |
| 927 | } |
| 928 | break; |
| 929 | } |
| 930 | default: |
| 931 | break; |
| 932 | } |
| 933 | } |
| 934 | token=(char *) RelinquishMagickMemory(token); |
| 935 | return(status); |
| 936 | } |
| 937 | |
| 938 | /* |
| 939 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 940 | % % |
| 941 | % % |
| 942 | % % |
| 943 | % L o a d M a g i c L i s t s % |
| 944 | % % |
| 945 | % % |
| 946 | % % |
| 947 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 948 | % |
| 949 | % LoadMagicLists() loads one or more magic configuration file which provides a |
| 950 | % mapping between magic attributes and a magic name. |
| 951 | % |
| 952 | % The format of the LoadMagicLists method is: |
| 953 | % |
| 954 | % MagickBooleanType LoadMagicLists(const char *filename, |
| 955 | % ExceptionInfo *exception) |
| 956 | % |
| 957 | % A description of each parameter follows: |
| 958 | % |
| 959 | % o filename: the font file name. |
| 960 | % |
| 961 | % o exception: return any errors or warnings in this structure. |
| 962 | % |
| 963 | */ |
| 964 | static MagickBooleanType LoadMagicLists(const char *filename, |
| 965 | ExceptionInfo *exception) |
| 966 | { |
| 967 | #if defined(MAGICKCORE_EMBEDDABLE_SUPPORT) |
| 968 | return(LoadMagicList(MagicMap,"built-in",0,exception)); |
| 969 | #else |
| 970 | char |
| 971 | path[MaxTextExtent]; |
| 972 | |
| 973 | const StringInfo |
| 974 | *option; |
| 975 | |
| 976 | LinkedListInfo |
| 977 | *options; |
| 978 | |
| 979 | MagickStatusType |
| 980 | status; |
| 981 | |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 982 | register const MagicMapInfo |
| 983 | *p; |
| 984 | |
| 985 | /* |
| 986 | Load built-in magic map. |
| 987 | */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 988 | status=MagickFalse; |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 989 | if (magic_list == (LinkedListInfo *) NULL) |
cristy | e3e77a1 | 2009-10-16 00:47:21 +0000 | [diff] [blame^] | 990 | { |
| 991 | magic_list=NewLinkedList(0); |
| 992 | if (magic_list == (LinkedListInfo *) NULL) |
| 993 | { |
| 994 | ThrowFileException(exception,ResourceLimitError, |
| 995 | "MemoryAllocationFailed",filename); |
| 996 | return(MagickFalse); |
| 997 | } |
| 998 | } |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 999 | for (p=MagicMap; p->name != (const char *) NULL; p++) |
| 1000 | { |
| 1001 | MagicInfo |
| 1002 | *magic_info; |
| 1003 | |
| 1004 | magic_info=(MagicInfo *) AcquireMagickMemory(sizeof(*magic_info)); |
| 1005 | if (magic_info == (MagicInfo *) NULL) |
cristy | e3e77a1 | 2009-10-16 00:47:21 +0000 | [diff] [blame^] | 1006 | { |
| 1007 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 1008 | ResourceLimitError,"MemoryAllocationFailed","`%s'",magic_info->name); |
| 1009 | continue; |
| 1010 | } |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 1011 | (void) ResetMagickMemory(magic_info,0,sizeof(*magic_info)); |
| 1012 | magic_info->path="[built-in]"; |
| 1013 | magic_info->name=(char *) p->name; |
| 1014 | magic_info->offset=p->offset; |
| 1015 | magic_info->target=(char *) p->magic; |
cristy | e3e77a1 | 2009-10-16 00:47:21 +0000 | [diff] [blame^] | 1016 | magic_info->magic=(unsigned char *) p->magic; |
cristy | 1ca3eb3 | 2009-10-15 18:41:54 +0000 | [diff] [blame] | 1017 | magic_info->length=p->length; |
| 1018 | magic_info->exempt=MagickTrue; |
| 1019 | magic_info->signature=MagickSignature; |
| 1020 | status=AppendValueToLinkedList(magic_list,magic_info); |
| 1021 | if (status == MagickFalse) |
| 1022 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 1023 | ResourceLimitError,"MemoryAllocationFailed","`%s'",magic_info->name); |
| 1024 | } |
| 1025 | /* |
| 1026 | Load external magic map. |
| 1027 | */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1028 | *path='\0'; |
| 1029 | options=GetConfigureOptions(filename,exception); |
| 1030 | option=(const StringInfo *) GetNextValueInLinkedList(options); |
| 1031 | while (option != (const StringInfo *) NULL) |
| 1032 | { |
| 1033 | (void) CopyMagickString(path,GetStringInfoPath(option),MaxTextExtent); |
| 1034 | status|=LoadMagicList((const char *) GetStringInfoDatum(option), |
| 1035 | GetStringInfoPath(option),0,exception); |
| 1036 | option=(const StringInfo *) GetNextValueInLinkedList(options); |
| 1037 | } |
| 1038 | options=DestroyConfigureOptions(options); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1039 | return(status != 0 ? MagickTrue : MagickFalse); |
| 1040 | #endif |
| 1041 | } |