cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % U U TTTTT IIIII L IIIII TTTTT Y Y % |
| 7 | % U U T I L I T Y Y % |
| 8 | % U U T I L I T Y % |
| 9 | % U U T I L I T Y % |
| 10 | % UUU T IIIII LLLLL IIIII T Y % |
| 11 | % % |
| 12 | % % |
| 13 | % MagickCore Utility Methods % |
| 14 | % % |
| 15 | % Software Design % |
cristy | de984cd | 2013-12-01 14:49:27 +0000 | [diff] [blame] | 16 | % Cristy % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 17 | % January 1993 % |
| 18 | % % |
| 19 | % % |
cristy | fe676ee | 2013-11-18 13:03:38 +0000 | [diff] [blame] | 20 | % Copyright 1999-2014 ImageMagick Studio LLC, a non-profit organization % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 21 | % dedicated to making software imaging solutions freely available. % |
| 22 | % % |
| 23 | % You may not use this file except in compliance with the License. You may % |
| 24 | % obtain a copy of the License at % |
| 25 | % % |
| 26 | % http://www.imagemagick.org/script/license.php % |
| 27 | % % |
| 28 | % Unless required by applicable law or agreed to in writing, software % |
| 29 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 30 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 31 | % See the License for the specific language governing permissions and % |
| 32 | % limitations under the License. % |
| 33 | % % |
| 34 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 35 | % |
| 36 | % |
| 37 | */ |
| 38 | |
| 39 | /* |
| 40 | Include declarations. |
| 41 | */ |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 42 | #include "MagickCore/studio.h" |
| 43 | #include "MagickCore/property.h" |
| 44 | #include "MagickCore/blob.h" |
| 45 | #include "MagickCore/color.h" |
| 46 | #include "MagickCore/exception.h" |
| 47 | #include "MagickCore/exception-private.h" |
| 48 | #include "MagickCore/geometry.h" |
| 49 | #include "MagickCore/list.h" |
| 50 | #include "MagickCore/log.h" |
cristy | 7832dc2 | 2011-09-05 01:21:53 +0000 | [diff] [blame] | 51 | #include "MagickCore/magick-private.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 52 | #include "MagickCore/memory_.h" |
cristy | 2c5fc27 | 2012-02-22 01:27:46 +0000 | [diff] [blame] | 53 | #include "MagickCore/nt-base-private.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 54 | #include "MagickCore/option.h" |
| 55 | #include "MagickCore/policy.h" |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 56 | #include "MagickCore/random_.h" |
| 57 | #include "MagickCore/registry.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 58 | #include "MagickCore/resource_.h" |
| 59 | #include "MagickCore/semaphore.h" |
| 60 | #include "MagickCore/signature-private.h" |
| 61 | #include "MagickCore/statistic.h" |
| 62 | #include "MagickCore/string_.h" |
cristy | 7832dc2 | 2011-09-05 01:21:53 +0000 | [diff] [blame] | 63 | #include "MagickCore/string-private.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 64 | #include "MagickCore/token.h" |
cristy | 7832dc2 | 2011-09-05 01:21:53 +0000 | [diff] [blame] | 65 | #include "MagickCore/token-private.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 66 | #include "MagickCore/utility.h" |
cristy | d1dd6e4 | 2011-09-04 01:46:08 +0000 | [diff] [blame] | 67 | #include "MagickCore/utility-private.h" |
cristy | 98e91bd | 2010-01-12 01:11:42 +0000 | [diff] [blame] | 68 | #if defined(MAGICKCORE_HAVE_PROCESS_H) |
| 69 | #include <process.h> |
| 70 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 71 | #if defined(MAGICKCORE_HAVE_MACH_O_DYLD_H) |
| 72 | #include <mach-o/dyld.h> |
| 73 | #endif |
| 74 | |
| 75 | /* |
| 76 | Static declarations. |
| 77 | */ |
| 78 | static const char |
| 79 | Base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; |
| 80 | |
| 81 | /* |
| 82 | Forward declaration. |
| 83 | */ |
| 84 | static int |
| 85 | IsPathDirectory(const char *); |
| 86 | |
| 87 | /* |
| 88 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 89 | % % |
| 90 | % % |
| 91 | % % |
| 92 | % A c q u i r e U n i q u e F i l e n a m e % |
| 93 | % % |
| 94 | % % |
| 95 | % % |
| 96 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 97 | % |
| 98 | % AcquireUniqueFilename() replaces the contents of path by a unique path name. |
| 99 | % |
| 100 | % The format of the AcquireUniqueFilename method is: |
| 101 | % |
| 102 | % MagickBooleanType AcquireUniqueFilename(char *path) |
| 103 | % |
| 104 | % A description of each parameter follows. |
| 105 | % |
| 106 | % o path: Specifies a pointer to an array of characters. The unique path |
| 107 | % name is returned in this array. |
| 108 | % |
| 109 | */ |
| 110 | MagickExport MagickBooleanType AcquireUniqueFilename(char *path) |
| 111 | { |
| 112 | int |
| 113 | file; |
| 114 | |
| 115 | file=AcquireUniqueFileResource(path); |
| 116 | if (file == -1) |
| 117 | return(MagickFalse); |
| 118 | file=close(file)-1; |
| 119 | return(MagickTrue); |
| 120 | } |
| 121 | |
| 122 | /* |
| 123 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 124 | % % |
| 125 | % % |
| 126 | % % |
| 127 | % A c q u i r e U n i q u e S ym b o l i c L i n k % |
| 128 | % % |
| 129 | % % |
| 130 | % % |
| 131 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 132 | % |
| 133 | % AcquireUniqueSymbolicLink() creates a unique symbolic link to the specified |
| 134 | % source path and returns MagickTrue on success otherwise MagickFalse. If the |
| 135 | % symlink() method fails or is not available, a unique file name is generated |
| 136 | % and the source file copied to it. When you are finished with the file, use |
| 137 | % RelinquishUniqueFilename() to destroy it. |
| 138 | % |
| 139 | % The format of the AcquireUniqueSymbolicLink method is: |
| 140 | % |
| 141 | % MagickBooleanType AcquireUniqueSymbolicLink(const char *source, |
| 142 | % char destination) |
| 143 | % |
| 144 | % A description of each parameter follows. |
| 145 | % |
| 146 | % o source: the source path. |
| 147 | % |
| 148 | % o destination: the destination path. |
| 149 | % |
| 150 | */ |
| 151 | |
cristy | 2a927fa | 2013-04-18 19:34:02 +0000 | [diff] [blame] | 152 | static inline MagickSizeType MagickMin(const MagickSizeType x, |
| 153 | const MagickSizeType y) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 154 | { |
| 155 | if (x < y) |
| 156 | return(x); |
| 157 | return(y); |
| 158 | } |
| 159 | |
| 160 | MagickExport MagickBooleanType AcquireUniqueSymbolicLink(const char *source, |
| 161 | char *destination) |
| 162 | { |
| 163 | int |
| 164 | destination_file, |
| 165 | source_file; |
| 166 | |
| 167 | size_t |
| 168 | length, |
| 169 | quantum; |
| 170 | |
| 171 | ssize_t |
| 172 | count; |
| 173 | |
| 174 | struct stat |
| 175 | attributes; |
| 176 | |
| 177 | unsigned char |
| 178 | *buffer; |
| 179 | |
| 180 | assert(source != (const char *) NULL); |
| 181 | assert(destination != (char *) NULL); |
| 182 | #if defined(MAGICKCORE_HAVE_SYMLINK) |
| 183 | (void) AcquireUniqueFilename(destination); |
| 184 | (void) RelinquishUniqueFileResource(destination); |
| 185 | if (*source == *DirectorySeparator) |
| 186 | { |
| 187 | if (symlink(source,destination) == 0) |
| 188 | return(MagickTrue); |
| 189 | } |
| 190 | else |
| 191 | { |
| 192 | char |
| 193 | path[MaxTextExtent]; |
| 194 | |
| 195 | *path='\0'; |
| 196 | if (getcwd(path,MaxTextExtent) == (char *) NULL) |
| 197 | return(MagickFalse); |
| 198 | (void) ConcatenateMagickString(path,DirectorySeparator,MaxTextExtent); |
| 199 | (void) ConcatenateMagickString(path,source,MaxTextExtent); |
| 200 | if (symlink(path,destination) == 0) |
| 201 | return(MagickTrue); |
| 202 | } |
| 203 | #endif |
| 204 | destination_file=AcquireUniqueFileResource(destination); |
| 205 | if (destination_file == -1) |
| 206 | return(MagickFalse); |
cristy | 18c6c27 | 2011-09-23 14:40:37 +0000 | [diff] [blame] | 207 | source_file=open_utf8(source,O_RDONLY | O_BINARY,0); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 208 | if (source_file == -1) |
| 209 | { |
| 210 | (void) close(destination_file); |
| 211 | (void) RelinquishUniqueFileResource(destination); |
| 212 | return(MagickFalse); |
| 213 | } |
| 214 | quantum=(size_t) MagickMaxBufferExtent; |
| 215 | if ((fstat(source_file,&attributes) == 0) && (attributes.st_size != 0)) |
cristy | 2a927fa | 2013-04-18 19:34:02 +0000 | [diff] [blame] | 216 | quantum=(size_t) MagickMin((size_t) attributes.st_size, |
| 217 | MagickMaxBufferExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 218 | buffer=(unsigned char *) AcquireQuantumMemory(quantum,sizeof(*buffer)); |
| 219 | if (buffer == (unsigned char *) NULL) |
| 220 | { |
| 221 | (void) close(source_file); |
| 222 | (void) close(destination_file); |
| 223 | (void) RelinquishUniqueFileResource(destination); |
| 224 | return(MagickFalse); |
| 225 | } |
| 226 | for (length=0; ; ) |
| 227 | { |
| 228 | count=(ssize_t) read(source_file,buffer,quantum); |
| 229 | if (count <= 0) |
| 230 | break; |
| 231 | length=(size_t) count; |
| 232 | count=(ssize_t) write(destination_file,buffer,length); |
| 233 | if ((size_t) count != length) |
| 234 | { |
| 235 | (void) close(destination_file); |
| 236 | (void) close(source_file); |
| 237 | buffer=(unsigned char *) RelinquishMagickMemory(buffer); |
| 238 | (void) RelinquishUniqueFileResource(destination); |
| 239 | return(MagickFalse); |
| 240 | } |
| 241 | } |
| 242 | (void) close(destination_file); |
| 243 | (void) close(source_file); |
| 244 | buffer=(unsigned char *) RelinquishMagickMemory(buffer); |
| 245 | return(MagickTrue); |
| 246 | } |
| 247 | |
| 248 | /* |
| 249 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 250 | % % |
| 251 | % % |
| 252 | % % |
| 253 | % A p p e n d I m a g e F o r m a t % |
| 254 | % % |
| 255 | % % |
| 256 | % % |
| 257 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 258 | % |
| 259 | % AppendImageFormat() appends the image format type to the filename. If an |
| 260 | % extension to the file already exists, it is first removed. |
| 261 | % |
| 262 | % The format of the AppendImageFormat method is: |
| 263 | % |
| 264 | % void AppendImageFormat(const char *format,char *filename) |
| 265 | % |
| 266 | % A description of each parameter follows. |
| 267 | % |
| 268 | % o format: Specifies a pointer to an array of characters. This the |
| 269 | % format of the image. |
| 270 | % |
| 271 | % o filename: Specifies a pointer to an array of characters. The unique |
| 272 | % file name is returned in this array. |
| 273 | % |
| 274 | */ |
| 275 | MagickExport void AppendImageFormat(const char *format,char *filename) |
| 276 | { |
| 277 | char |
cristy | 212e262 | 2010-06-12 19:07:47 +0000 | [diff] [blame] | 278 | extension[MaxTextExtent], |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 279 | root[MaxTextExtent]; |
| 280 | |
| 281 | assert(format != (char *) NULL); |
| 282 | assert(filename != (char *) NULL); |
| 283 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",filename); |
| 284 | if ((*format == '\0') || (*filename == '\0')) |
| 285 | return; |
| 286 | if (LocaleCompare(filename,"-") == 0) |
| 287 | { |
| 288 | char |
| 289 | message[MaxTextExtent]; |
| 290 | |
cristy | b51dff5 | 2011-05-19 16:55:47 +0000 | [diff] [blame] | 291 | (void) FormatLocaleString(message,MaxTextExtent,"%s:%s",format,filename); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 292 | (void) CopyMagickString(filename,message,MaxTextExtent); |
| 293 | return; |
| 294 | } |
cristy | 212e262 | 2010-06-12 19:07:47 +0000 | [diff] [blame] | 295 | GetPathComponent(filename,ExtensionPath,extension); |
| 296 | if ((LocaleCompare(extension,"Z") == 0) || |
| 297 | (LocaleCompare(extension,"bz2") == 0) || |
| 298 | (LocaleCompare(extension,"gz") == 0) || |
| 299 | (LocaleCompare(extension,"wmz") == 0) || |
| 300 | (LocaleCompare(extension,"svgz") == 0)) |
| 301 | { |
| 302 | GetPathComponent(filename,RootPath,root); |
| 303 | (void) CopyMagickString(filename,root,MaxTextExtent); |
| 304 | GetPathComponent(filename,RootPath,root); |
cristy | b51dff5 | 2011-05-19 16:55:47 +0000 | [diff] [blame] | 305 | (void) FormatLocaleString(filename,MaxTextExtent,"%s.%s.%s",root,format, |
cristy | 212e262 | 2010-06-12 19:07:47 +0000 | [diff] [blame] | 306 | extension); |
| 307 | return; |
| 308 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 309 | GetPathComponent(filename,RootPath,root); |
cristy | b51dff5 | 2011-05-19 16:55:47 +0000 | [diff] [blame] | 310 | (void) FormatLocaleString(filename,MaxTextExtent,"%s.%s",root,format); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 311 | } |
| 312 | |
| 313 | /* |
| 314 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 315 | % % |
| 316 | % % |
| 317 | % % |
| 318 | % B a s e 6 4 D e c o d e % |
| 319 | % % |
| 320 | % % |
| 321 | % % |
| 322 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 323 | % |
| 324 | % Base64Decode() decodes Base64-encoded text and returns its binary |
| 325 | % equivalent. NULL is returned if the text is not valid Base64 data, or a |
| 326 | % memory allocation failure occurs. |
| 327 | % |
| 328 | % The format of the Base64Decode method is: |
| 329 | % |
| 330 | % unsigned char *Base64Decode(const char *source,length_t *length) |
| 331 | % |
| 332 | % A description of each parameter follows: |
| 333 | % |
| 334 | % o source: A pointer to a Base64-encoded string. |
| 335 | % |
| 336 | % o length: the number of bytes decoded. |
| 337 | % |
| 338 | */ |
| 339 | MagickExport unsigned char *Base64Decode(const char *source,size_t *length) |
| 340 | { |
| 341 | int |
| 342 | state; |
| 343 | |
| 344 | register const char |
| 345 | *p, |
| 346 | *q; |
| 347 | |
| 348 | register size_t |
| 349 | i; |
| 350 | |
| 351 | unsigned char |
| 352 | *decode; |
| 353 | |
| 354 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 355 | assert(source != (char *) NULL); |
| 356 | assert(length != (size_t *) NULL); |
| 357 | *length=0; |
| 358 | decode=(unsigned char *) AcquireQuantumMemory(strlen(source)/4+4, |
| 359 | 3*sizeof(*decode)); |
| 360 | if (decode == (unsigned char *) NULL) |
| 361 | return((unsigned char *) NULL); |
| 362 | i=0; |
| 363 | state=0; |
| 364 | for (p=source; *p != '\0'; p++) |
| 365 | { |
| 366 | if (isspace((int) ((unsigned char) *p)) != 0) |
| 367 | continue; |
| 368 | if (*p == '=') |
| 369 | break; |
| 370 | q=strchr(Base64,*p); |
| 371 | if (q == (char *) NULL) |
| 372 | { |
| 373 | decode=(unsigned char *) RelinquishMagickMemory(decode); |
| 374 | return((unsigned char *) NULL); /* non-Base64 character */ |
| 375 | } |
| 376 | switch (state) |
| 377 | { |
| 378 | case 0: |
| 379 | { |
| 380 | decode[i]=(q-Base64) << 2; |
| 381 | state++; |
| 382 | break; |
| 383 | } |
| 384 | case 1: |
| 385 | { |
| 386 | decode[i++]|=(q-Base64) >> 4; |
| 387 | decode[i]=((q-Base64) & 0x0f) << 4; |
| 388 | state++; |
| 389 | break; |
| 390 | } |
| 391 | case 2: |
| 392 | { |
| 393 | decode[i++]|=(q-Base64) >> 2; |
| 394 | decode[i]=((q-Base64) & 0x03) << 6; |
| 395 | state++; |
| 396 | break; |
| 397 | } |
| 398 | case 3: |
| 399 | { |
| 400 | decode[i++]|=(q-Base64); |
| 401 | state=0; |
| 402 | break; |
| 403 | } |
| 404 | } |
| 405 | } |
| 406 | /* |
| 407 | Verify Base-64 string has proper terminal characters. |
| 408 | */ |
| 409 | if (*p != '=') |
| 410 | { |
| 411 | if (state != 0) |
| 412 | { |
| 413 | decode=(unsigned char *) RelinquishMagickMemory(decode); |
| 414 | return((unsigned char *) NULL); |
| 415 | } |
| 416 | } |
| 417 | else |
| 418 | { |
| 419 | p++; |
| 420 | switch (state) |
| 421 | { |
| 422 | case 0: |
| 423 | case 1: |
| 424 | { |
| 425 | /* |
| 426 | Unrecognized '=' character. |
| 427 | */ |
| 428 | decode=(unsigned char *) RelinquishMagickMemory(decode); |
| 429 | return((unsigned char *) NULL); |
| 430 | } |
| 431 | case 2: |
| 432 | { |
| 433 | for ( ; *p != '\0'; p++) |
| 434 | if (isspace((int) ((unsigned char) *p)) == 0) |
| 435 | break; |
| 436 | if (*p != '=') |
| 437 | { |
| 438 | decode=(unsigned char *) RelinquishMagickMemory(decode); |
| 439 | return((unsigned char *) NULL); |
| 440 | } |
| 441 | p++; |
| 442 | } |
| 443 | case 3: |
| 444 | { |
| 445 | for ( ; *p != '\0'; p++) |
| 446 | if (isspace((int) ((unsigned char) *p)) == 0) |
| 447 | { |
| 448 | decode=(unsigned char *) RelinquishMagickMemory(decode); |
| 449 | return((unsigned char *) NULL); |
| 450 | } |
| 451 | if ((int) decode[i] != 0) |
| 452 | { |
| 453 | decode=(unsigned char *) RelinquishMagickMemory(decode); |
| 454 | return((unsigned char *) NULL); |
| 455 | } |
cristy | 6f008fd | 2014-05-25 23:27:26 +0000 | [diff] [blame] | 456 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 457 | } |
| 458 | } |
| 459 | } |
| 460 | *length=i; |
| 461 | return(decode); |
| 462 | } |
| 463 | |
| 464 | /* |
| 465 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 466 | % % |
| 467 | % % |
| 468 | % % |
| 469 | % B a s e 6 4 E n c o d e % |
| 470 | % % |
| 471 | % % |
| 472 | % % |
| 473 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 474 | % |
| 475 | % Base64Encode() encodes arbitrary binary data to Base64 encoded format as |
| 476 | % described by the "Base64 Content-Transfer-Encoding" section of RFC 2045 and |
| 477 | % returns the result as a null-terminated ASCII string. NULL is returned if |
| 478 | % a memory allocation failure occurs. |
| 479 | % |
| 480 | % The format of the Base64Encode method is: |
| 481 | % |
| 482 | % char *Base64Encode(const unsigned char *blob,const size_t blob_length, |
| 483 | % size_t *encode_length) |
| 484 | % |
| 485 | % A description of each parameter follows: |
| 486 | % |
| 487 | % o blob: A pointer to binary data to encode. |
| 488 | % |
| 489 | % o blob_length: the number of bytes to encode. |
| 490 | % |
| 491 | % o encode_length: The number of bytes encoded. |
| 492 | % |
| 493 | */ |
| 494 | MagickExport char *Base64Encode(const unsigned char *blob, |
| 495 | const size_t blob_length,size_t *encode_length) |
| 496 | { |
| 497 | char |
| 498 | *encode; |
| 499 | |
| 500 | register const unsigned char |
| 501 | *p; |
| 502 | |
| 503 | register size_t |
| 504 | i; |
| 505 | |
| 506 | size_t |
| 507 | remainder; |
| 508 | |
| 509 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 510 | assert(blob != (const unsigned char *) NULL); |
| 511 | assert(blob_length != 0); |
| 512 | assert(encode_length != (size_t *) NULL); |
| 513 | *encode_length=0; |
| 514 | encode=(char *) AcquireQuantumMemory(blob_length/3+4,4*sizeof(*encode)); |
| 515 | if (encode == (char *) NULL) |
| 516 | return((char *) NULL); |
| 517 | i=0; |
| 518 | for (p=blob; p < (blob+blob_length-2); p+=3) |
| 519 | { |
| 520 | encode[i++]=Base64[(int) (*p >> 2)]; |
| 521 | encode[i++]=Base64[(int) (((*p & 0x03) << 4)+(*(p+1) >> 4))]; |
| 522 | encode[i++]=Base64[(int) (((*(p+1) & 0x0f) << 2)+(*(p+2) >> 6))]; |
| 523 | encode[i++]=Base64[(int) (*(p+2) & 0x3f)]; |
| 524 | } |
| 525 | remainder=blob_length % 3; |
| 526 | if (remainder != 0) |
| 527 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 528 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 529 | j; |
| 530 | |
| 531 | unsigned char |
| 532 | code[3]; |
| 533 | |
| 534 | code[0]='\0'; |
| 535 | code[1]='\0'; |
| 536 | code[2]='\0'; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 537 | for (j=0; j < (ssize_t) remainder; j++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 538 | code[j]=(*p++); |
| 539 | encode[i++]=Base64[(int) (code[0] >> 2)]; |
| 540 | encode[i++]=Base64[(int) (((code[0] & 0x03) << 4)+(code[1] >> 4))]; |
| 541 | if (remainder == 1) |
| 542 | encode[i++]='='; |
| 543 | else |
| 544 | encode[i++]=Base64[(int) (((code[1] & 0x0f) << 2)+(code[2] >> 6))]; |
| 545 | encode[i++]='='; |
| 546 | } |
| 547 | *encode_length=i; |
| 548 | encode[i++]='\0'; |
| 549 | return(encode); |
| 550 | } |
| 551 | |
| 552 | /* |
| 553 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 554 | % % |
| 555 | % % |
| 556 | % % |
| 557 | % C h o p P a t h C o m p o n e n t s % |
| 558 | % % |
| 559 | % % |
| 560 | % % |
| 561 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 562 | % |
| 563 | % ChopPathComponents() removes the number of specified file components from a |
| 564 | % path. |
| 565 | % |
| 566 | % The format of the ChopPathComponents method is: |
| 567 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 568 | % ChopPathComponents(char *path,size_t components) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 569 | % |
| 570 | % A description of each parameter follows: |
| 571 | % |
| 572 | % o path: The path. |
| 573 | % |
| 574 | % o components: The number of components to chop. |
| 575 | % |
| 576 | */ |
cristy | d1dd6e4 | 2011-09-04 01:46:08 +0000 | [diff] [blame] | 577 | MagickPrivate void ChopPathComponents(char *path,const size_t components) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 578 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 579 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 580 | i; |
| 581 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 582 | for (i=0; i < (ssize_t) components; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 583 | GetPathComponent(path,HeadPath,path); |
| 584 | } |
| 585 | |
| 586 | /* |
| 587 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 588 | % % |
| 589 | % % |
| 590 | % % |
| 591 | % E x p a n d F i l e n a m e % |
| 592 | % % |
| 593 | % % |
| 594 | % % |
| 595 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 596 | % |
| 597 | % ExpandFilename() expands '~' in a path. |
| 598 | % |
| 599 | % The format of the ExpandFilename function is: |
| 600 | % |
| 601 | % ExpandFilename(char *path) |
| 602 | % |
| 603 | % A description of each parameter follows: |
| 604 | % |
| 605 | % o path: Specifies a pointer to a character array that contains the |
| 606 | % path. |
| 607 | % |
| 608 | */ |
cristy | d1dd6e4 | 2011-09-04 01:46:08 +0000 | [diff] [blame] | 609 | MagickPrivate void ExpandFilename(char *path) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 610 | { |
| 611 | char |
| 612 | expand_path[MaxTextExtent]; |
| 613 | |
| 614 | if (path == (char *) NULL) |
| 615 | return; |
| 616 | if (*path != '~') |
| 617 | return; |
| 618 | (void) CopyMagickString(expand_path,path,MaxTextExtent); |
| 619 | if ((*(path+1) == *DirectorySeparator) || (*(path+1) == '\0')) |
| 620 | { |
| 621 | char |
| 622 | *home; |
| 623 | |
| 624 | /* |
| 625 | Substitute ~ with $HOME. |
| 626 | */ |
| 627 | (void) CopyMagickString(expand_path,".",MaxTextExtent); |
| 628 | (void) ConcatenateMagickString(expand_path,path+1,MaxTextExtent); |
| 629 | home=GetEnvironmentValue("HOME"); |
| 630 | if (home == (char *) NULL) |
| 631 | home=GetEnvironmentValue("USERPROFILE"); |
| 632 | if (home != (char *) NULL) |
| 633 | { |
| 634 | (void) CopyMagickString(expand_path,home,MaxTextExtent); |
| 635 | (void) ConcatenateMagickString(expand_path,path+1,MaxTextExtent); |
| 636 | home=DestroyString(home); |
| 637 | } |
| 638 | } |
| 639 | else |
| 640 | { |
| 641 | #if defined(MAGICKCORE_POSIX_SUPPORT) && !defined(__OS2__) |
| 642 | char |
| 643 | username[MaxTextExtent]; |
| 644 | |
| 645 | register char |
| 646 | *p; |
| 647 | |
| 648 | struct passwd |
| 649 | *entry; |
| 650 | |
| 651 | /* |
| 652 | Substitute ~ with home directory from password file. |
| 653 | */ |
| 654 | (void) CopyMagickString(username,path+1,MaxTextExtent); |
| 655 | p=strchr(username,'/'); |
| 656 | if (p != (char *) NULL) |
| 657 | *p='\0'; |
| 658 | entry=getpwnam(username); |
| 659 | if (entry == (struct passwd *) NULL) |
| 660 | return; |
| 661 | (void) CopyMagickString(expand_path,entry->pw_dir,MaxTextExtent); |
| 662 | if (p != (char *) NULL) |
| 663 | { |
| 664 | (void) ConcatenateMagickString(expand_path,"/",MaxTextExtent); |
| 665 | (void) ConcatenateMagickString(expand_path,p+1,MaxTextExtent); |
| 666 | } |
| 667 | #endif |
| 668 | } |
| 669 | (void) CopyMagickString(path,expand_path,MaxTextExtent); |
| 670 | } |
| 671 | |
| 672 | /* |
| 673 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 674 | % % |
| 675 | % % |
| 676 | % % |
| 677 | % E x p a n d F i l e n a m e s % |
| 678 | % % |
| 679 | % % |
| 680 | % % |
| 681 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 682 | % |
anthony | de897b7 | 2012-04-27 00:16:17 +0000 | [diff] [blame] | 683 | % ExpandFilenames() checks each argument of the given argument array, and |
| 684 | % expands it if they have a wildcard character. |
| 685 | % |
| 686 | % Any coder prefix (EG: 'coder:filename') or read modifier postfix (EG: |
| 687 | % 'filename[...]') are ignored during the file the expansion, but will be |
| 688 | % included in the final argument. If no filename matching the meta-character |
| 689 | % 'glob' is found the original argument is returned. |
| 690 | % |
| 691 | % For example, an argument of '*.gif[20x20]' will be replaced by the list |
| 692 | % 'abc.gif[20x20]', 'foobar.gif[20x20]', 'xyzzy.gif[20x20]' |
| 693 | % if such filenames exist, (in the current directory in this case). |
| 694 | % |
| 695 | % Meta-characters handled... |
| 696 | % @ read a list of filenames (no further expansion performed) |
| 697 | % ~ At start of filename expands to HOME environemtn variable |
| 698 | % * matches any string including an empty string |
| 699 | % ? matches by any single character |
| 700 | % |
| 701 | % WARNING: filenames starting with '.' (hidden files in a UNIX file system) |
| 702 | % will never be expanded. Attempting to epand '.*' will produce no change. |
| 703 | % |
| 704 | % Expansion is ignored for coders "label:" "caption:" "pango:" and "vid:". |
| 705 | % Which provide their own '@' meta-character handling. |
| 706 | % |
cristy | 8a5d7f4 | 2013-01-06 15:24:33 +0000 | [diff] [blame] | 707 | % You can see the results of the expansion using "Configure" log events. |
anthony | 451f909 | 2012-05-11 01:56:24 +0000 | [diff] [blame] | 708 | % |
| 709 | % The returned list should be freed using DestroyStringList(). |
| 710 | % |
| 711 | % However the strings in the original pointed to argv are not |
| 712 | % freed (TO BE CHECKED). So a copy of the original pointer (and count) |
| 713 | % should be kept separate if they need to be freed later. |
| 714 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 715 | % The format of the ExpandFilenames function is: |
| 716 | % |
| 717 | % status=ExpandFilenames(int *number_arguments,char ***arguments) |
| 718 | % |
| 719 | % A description of each parameter follows: |
| 720 | % |
| 721 | % o number_arguments: Specifies a pointer to an integer describing the |
| 722 | % number of elements in the argument vector. |
| 723 | % |
| 724 | % o arguments: Specifies a pointer to a text array containing the command |
| 725 | % line arguments. |
| 726 | % |
| 727 | */ |
| 728 | MagickExport MagickBooleanType ExpandFilenames(int *number_arguments, |
| 729 | char ***arguments) |
| 730 | { |
| 731 | char |
cristy | 00976d8 | 2011-02-20 20:31:28 +0000 | [diff] [blame] | 732 | *directory, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 733 | home_directory[MaxTextExtent], |
| 734 | **vector; |
| 735 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 736 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 737 | i, |
| 738 | j; |
| 739 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 740 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 741 | number_files; |
| 742 | |
cristy | 00976d8 | 2011-02-20 20:31:28 +0000 | [diff] [blame] | 743 | ssize_t |
| 744 | count, |
| 745 | parameters; |
| 746 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 747 | /* |
| 748 | Allocate argument vector. |
| 749 | */ |
| 750 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 751 | assert(number_arguments != (int *) NULL); |
| 752 | assert(arguments != (char ***) NULL); |
| 753 | vector=(char **) AcquireQuantumMemory((size_t) (*number_arguments+1), |
| 754 | sizeof(*vector)); |
| 755 | if (vector == (char **) NULL) |
| 756 | ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); |
| 757 | /* |
| 758 | Expand any wildcard filenames. |
| 759 | */ |
| 760 | *home_directory='\0'; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 761 | count=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 762 | for (i=0; i < (ssize_t) *number_arguments; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 763 | { |
| 764 | char |
| 765 | **filelist, |
| 766 | filename[MaxTextExtent], |
| 767 | magick[MaxTextExtent], |
| 768 | *option, |
| 769 | path[MaxTextExtent], |
| 770 | subimage[MaxTextExtent]; |
| 771 | |
| 772 | MagickBooleanType |
| 773 | destroy; |
| 774 | |
| 775 | option=(*arguments)[i]; |
| 776 | *magick='\0'; |
| 777 | *path='\0'; |
| 778 | *filename='\0'; |
| 779 | *subimage='\0'; |
cristy | 54ebd8d | 2014-01-14 01:14:23 +0000 | [diff] [blame] | 780 | number_files=0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 781 | vector[count++]=ConstantString(option); |
| 782 | destroy=MagickTrue; |
cristy | 042ee78 | 2011-04-22 18:48:30 +0000 | [diff] [blame] | 783 | parameters=ParseCommandOption(MagickCommandOptions,MagickFalse,option); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 784 | if (parameters > 0) |
| 785 | { |
| 786 | /* |
| 787 | Do not expand command option parameters. |
| 788 | */ |
| 789 | for (j=0; j < parameters; j++) |
| 790 | { |
| 791 | i++; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 792 | if (i == (ssize_t) *number_arguments) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 793 | break; |
| 794 | option=(*arguments)[i]; |
| 795 | vector[count++]=ConstantString(option); |
| 796 | } |
| 797 | continue; |
| 798 | } |
| 799 | if ((*option == '"') || (*option == '\'')) |
| 800 | continue; |
cristy | 4b06482 | 2012-04-29 13:26:43 +0000 | [diff] [blame] | 801 | GetPathComponent(option,TailPath,filename); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 802 | GetPathComponent(option,MagickPath,magick); |
| 803 | if ((LocaleCompare(magick,"CAPTION") == 0) || |
| 804 | (LocaleCompare(magick,"LABEL") == 0) || |
cristy | c0732c4 | 2012-03-20 19:28:35 +0000 | [diff] [blame] | 805 | (LocaleCompare(magick,"PANGO") == 0) || |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 806 | (LocaleCompare(magick,"VID") == 0)) |
| 807 | continue; |
cristy | 127425f | 2012-04-29 13:38:05 +0000 | [diff] [blame] | 808 | if ((IsGlob(filename) == MagickFalse) && (*option != '@')) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 809 | continue; |
cristy | 127425f | 2012-04-29 13:38:05 +0000 | [diff] [blame] | 810 | if (*option != '@') |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 811 | { |
| 812 | /* |
| 813 | Generate file list from wildcard filename (e.g. *.jpg). |
| 814 | */ |
| 815 | GetPathComponent(option,HeadPath,path); |
| 816 | GetPathComponent(option,SubimagePath,subimage); |
| 817 | ExpandFilename(path); |
cristy | f5ee5be | 2009-11-06 02:22:56 +0000 | [diff] [blame] | 818 | if (*home_directory == '\0') |
cristy | 00976d8 | 2011-02-20 20:31:28 +0000 | [diff] [blame] | 819 | directory=getcwd(home_directory,MaxTextExtent-1); |
| 820 | (void) directory; |
cristy | 4b06482 | 2012-04-29 13:26:43 +0000 | [diff] [blame] | 821 | filelist=ListFiles(*path == '\0' ? home_directory : path,filename, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 822 | &number_files); |
| 823 | } |
| 824 | else |
| 825 | { |
| 826 | char |
| 827 | *files; |
| 828 | |
| 829 | ExceptionInfo |
| 830 | *exception; |
| 831 | |
| 832 | int |
cristy | f9218a7 | 2010-07-03 17:29:40 +0000 | [diff] [blame] | 833 | length; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 834 | |
| 835 | /* |
| 836 | Generate file list from file list (e.g. @filelist.txt). |
| 837 | */ |
| 838 | exception=AcquireExceptionInfo(); |
cristy | 3a5987c | 2013-11-07 14:18:46 +0000 | [diff] [blame] | 839 | files=FileToString(option+1,~0UL,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 840 | exception=DestroyExceptionInfo(exception); |
| 841 | if (files == (char *) NULL) |
| 842 | continue; |
cristy | f9218a7 | 2010-07-03 17:29:40 +0000 | [diff] [blame] | 843 | filelist=StringToArgv(files,&length); |
| 844 | if (filelist == (char **) NULL) |
| 845 | continue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 846 | files=DestroyString(files); |
cristy | f9218a7 | 2010-07-03 17:29:40 +0000 | [diff] [blame] | 847 | filelist[0]=DestroyString(filelist[0]); |
| 848 | for (j=0; j < (ssize_t) (length-1); j++) |
| 849 | filelist[j]=filelist[j+1]; |
| 850 | number_files=(size_t) length-1; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 851 | } |
| 852 | if (filelist == (char **) NULL) |
| 853 | continue; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 854 | for (j=0; j < (ssize_t) number_files; j++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 855 | if (IsPathDirectory(filelist[j]) <= 0) |
| 856 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 857 | if (j == (ssize_t) number_files) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 858 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 859 | for (j=0; j < (ssize_t) number_files; j++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 860 | filelist[j]=DestroyString(filelist[j]); |
| 861 | filelist=(char **) RelinquishMagickMemory(filelist); |
| 862 | continue; |
| 863 | } |
| 864 | /* |
| 865 | Transfer file list to argument vector. |
| 866 | */ |
| 867 | vector=(char **) ResizeQuantumMemory(vector,(size_t) *number_arguments+ |
| 868 | count+number_files+1,sizeof(*vector)); |
| 869 | if (vector == (char **) NULL) |
| 870 | return(MagickFalse); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 871 | for (j=0; j < (ssize_t) number_files; j++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 872 | { |
cristy | 0e52622 | 2010-05-06 14:07:32 +0000 | [diff] [blame] | 873 | option=filelist[j]; |
cristy | 042ee78 | 2011-04-22 18:48:30 +0000 | [diff] [blame] | 874 | parameters=ParseCommandOption(MagickCommandOptions,MagickFalse,option); |
cristy | 0e52622 | 2010-05-06 14:07:32 +0000 | [diff] [blame] | 875 | if (parameters > 0) |
| 876 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 877 | ssize_t |
cristy | 0e52622 | 2010-05-06 14:07:32 +0000 | [diff] [blame] | 878 | k; |
| 879 | |
| 880 | /* |
| 881 | Do not expand command option parameters. |
| 882 | */ |
| 883 | vector[count++]=ConstantString(option); |
| 884 | for (k=0; k < parameters; k++) |
| 885 | { |
| 886 | j++; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 887 | if (j == (ssize_t) number_files) |
cristy | 0e52622 | 2010-05-06 14:07:32 +0000 | [diff] [blame] | 888 | break; |
| 889 | option=filelist[j]; |
| 890 | vector[count++]=ConstantString(option); |
| 891 | } |
| 892 | continue; |
| 893 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 894 | (void) CopyMagickString(filename,path,MaxTextExtent); |
| 895 | if (*path != '\0') |
| 896 | (void) ConcatenateMagickString(filename,DirectorySeparator, |
| 897 | MaxTextExtent); |
cristy | aa4db03 | 2014-01-14 15:07:39 +0000 | [diff] [blame] | 898 | if (filelist[j] != (char *) NULL) |
| 899 | (void) ConcatenateMagickString(filename,filelist[j],MaxTextExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 900 | filelist[j]=DestroyString(filelist[j]); |
cristy | cfef62c | 2010-05-05 01:21:43 +0000 | [diff] [blame] | 901 | if (strlen(filename) >= (MaxTextExtent-1)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 902 | ThrowFatalException(OptionFatalError,"FilenameTruncated"); |
cristy | 47dc34d | 2010-04-22 16:12:43 +0000 | [diff] [blame] | 903 | if (IsPathDirectory(filename) <= 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 904 | { |
| 905 | char |
| 906 | path[MaxTextExtent]; |
| 907 | |
| 908 | *path='\0'; |
| 909 | if (*magick != '\0') |
| 910 | { |
| 911 | (void) ConcatenateMagickString(path,magick,MaxTextExtent); |
| 912 | (void) ConcatenateMagickString(path,":",MaxTextExtent); |
| 913 | } |
| 914 | (void) ConcatenateMagickString(path,filename,MaxTextExtent); |
| 915 | if (*subimage != '\0') |
| 916 | { |
| 917 | (void) ConcatenateMagickString(path,"[",MaxTextExtent); |
| 918 | (void) ConcatenateMagickString(path,subimage,MaxTextExtent); |
| 919 | (void) ConcatenateMagickString(path,"]",MaxTextExtent); |
| 920 | } |
cristy | 37e0b38 | 2011-06-07 13:31:21 +0000 | [diff] [blame] | 921 | if (strlen(path) >= (MaxTextExtent-1)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 922 | ThrowFatalException(OptionFatalError,"FilenameTruncated"); |
| 923 | if (destroy != MagickFalse) |
| 924 | { |
| 925 | count--; |
| 926 | vector[count]=DestroyString(vector[count]); |
| 927 | destroy=MagickFalse; |
| 928 | } |
| 929 | vector[count++]=ConstantString(path); |
| 930 | } |
| 931 | } |
| 932 | filelist=(char **) RelinquishMagickMemory(filelist); |
| 933 | } |
| 934 | vector[count]=(char *) NULL; |
| 935 | if (IsEventLogging() != MagickFalse) |
| 936 | { |
| 937 | char |
| 938 | *command_line; |
| 939 | |
| 940 | command_line=AcquireString(vector[0]); |
| 941 | for (i=1; i < count; i++) |
| 942 | { |
| 943 | (void) ConcatenateString(&command_line," {"); |
| 944 | (void) ConcatenateString(&command_line,vector[i]); |
| 945 | (void) ConcatenateString(&command_line,"}"); |
| 946 | } |
| 947 | (void) LogMagickEvent(ConfigureEvent,GetMagickModule(), |
| 948 | "Command line: %s",command_line); |
| 949 | command_line=DestroyString(command_line); |
| 950 | } |
| 951 | *number_arguments=(int) count; |
| 952 | *arguments=vector; |
| 953 | return(MagickTrue); |
| 954 | } |
| 955 | |
| 956 | /* |
| 957 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 958 | % % |
| 959 | % % |
| 960 | % % |
| 961 | % G e t E x e c u t i o n P a t h % |
| 962 | % % |
| 963 | % % |
| 964 | % % |
| 965 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 966 | % |
| 967 | % GetExecutionPath() returns the pathname of the executable that started |
| 968 | % the process. On success MagickTrue is returned, otherwise MagickFalse. |
| 969 | % |
| 970 | % The format of the GetExecutionPath method is: |
| 971 | % |
| 972 | % MagickBooleanType GetExecutionPath(char *path,const size_t extent) |
| 973 | % |
| 974 | % A description of each parameter follows: |
| 975 | % |
| 976 | % o path: the pathname of the executable that started the process. |
| 977 | % |
| 978 | % o extent: the maximum extent of the path. |
| 979 | % |
| 980 | */ |
cristy | d1dd6e4 | 2011-09-04 01:46:08 +0000 | [diff] [blame] | 981 | MagickPrivate MagickBooleanType GetExecutionPath(char *path,const size_t extent) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 982 | { |
cristy | fbe485a | 2011-02-22 13:54:48 +0000 | [diff] [blame] | 983 | char |
| 984 | *directory; |
| 985 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 986 | *path='\0'; |
cristy | fbe485a | 2011-02-22 13:54:48 +0000 | [diff] [blame] | 987 | directory=getcwd(path,(unsigned long) extent); |
| 988 | (void) directory; |
cristy | fa09d14 | 2009-10-15 01:02:25 +0000 | [diff] [blame] | 989 | #if defined(MAGICKCORE_HAVE_GETPID) && defined(MAGICKCORE_HAVE_READLINK) && defined(PATH_MAX) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 990 | { |
| 991 | char |
| 992 | link_path[MaxTextExtent], |
cristy | fa09d14 | 2009-10-15 01:02:25 +0000 | [diff] [blame] | 993 | execution_path[PATH_MAX+1]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 994 | |
| 995 | ssize_t |
| 996 | count; |
| 997 | |
cristy | b51dff5 | 2011-05-19 16:55:47 +0000 | [diff] [blame] | 998 | (void) FormatLocaleString(link_path,MaxTextExtent,"/proc/%.20g/exe", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 999 | (double) getpid()); |
cristy | fa09d14 | 2009-10-15 01:02:25 +0000 | [diff] [blame] | 1000 | count=readlink(link_path,execution_path,PATH_MAX); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1001 | if (count == -1) |
| 1002 | { |
cristy | b51dff5 | 2011-05-19 16:55:47 +0000 | [diff] [blame] | 1003 | (void) FormatLocaleString(link_path,MaxTextExtent,"/proc/%.20g/file", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 1004 | (double) getpid()); |
cristy | fa09d14 | 2009-10-15 01:02:25 +0000 | [diff] [blame] | 1005 | count=readlink(link_path,execution_path,PATH_MAX); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1006 | } |
| 1007 | if ((count > 0) && (count <= (ssize_t) PATH_MAX)) |
| 1008 | { |
cristy | fa09d14 | 2009-10-15 01:02:25 +0000 | [diff] [blame] | 1009 | execution_path[count]='\0'; |
| 1010 | (void) CopyMagickString(path,execution_path,extent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1011 | } |
| 1012 | } |
| 1013 | #endif |
| 1014 | #if defined(MAGICKCORE_HAVE__NSGETEXECUTABLEPATH) |
| 1015 | { |
| 1016 | char |
| 1017 | executable_path[PATH_MAX << 1], |
cristy | fa09d14 | 2009-10-15 01:02:25 +0000 | [diff] [blame] | 1018 | execution_path[PATH_MAX+1]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1019 | |
| 1020 | uint32_t |
| 1021 | length; |
| 1022 | |
| 1023 | length=sizeof(executable_path); |
| 1024 | if ((_NSGetExecutablePath(executable_path,&length) == 0) && |
cristy | fa09d14 | 2009-10-15 01:02:25 +0000 | [diff] [blame] | 1025 | (realpath(executable_path,execution_path) != (char *) NULL)) |
| 1026 | (void) CopyMagickString(path,execution_path,extent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1027 | } |
| 1028 | #endif |
| 1029 | #if defined(MAGICKCORE_HAVE_GETEXECNAME) |
| 1030 | { |
| 1031 | const char |
| 1032 | *execution_path; |
| 1033 | |
| 1034 | execution_path=(const char *) getexecname(); |
| 1035 | if (execution_path != (const char *) NULL) |
| 1036 | { |
| 1037 | if (*execution_path != *DirectorySeparator) |
| 1038 | (void) ConcatenateMagickString(path,DirectorySeparator,extent); |
| 1039 | (void) ConcatenateMagickString(path,execution_path,extent); |
| 1040 | } |
| 1041 | } |
| 1042 | #endif |
cristy | 0157aea | 2010-04-24 21:12:18 +0000 | [diff] [blame] | 1043 | #if defined(MAGICKCORE_WINDOWS_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1044 | NTGetExecutionPath(path,extent); |
| 1045 | #endif |
cristy | fa09d14 | 2009-10-15 01:02:25 +0000 | [diff] [blame] | 1046 | #if defined(__GNU__) |
| 1047 | { |
| 1048 | char |
| 1049 | *program_name, |
| 1050 | *execution_path; |
| 1051 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1052 | ssize_t |
cristy | fa09d14 | 2009-10-15 01:02:25 +0000 | [diff] [blame] | 1053 | count; |
| 1054 | |
| 1055 | count=0; |
| 1056 | execution_path=(char *) NULL; |
| 1057 | program_name=program_invocation_name; |
| 1058 | if (*program_invocation_name != '/') |
| 1059 | { |
| 1060 | size_t |
| 1061 | extent; |
| 1062 | |
cristy | b29bea5 | 2011-05-26 17:54:31 +0000 | [diff] [blame] | 1063 | extent=strlen(directory)+strlen(program_name)+2; |
cristy | fa09d14 | 2009-10-15 01:02:25 +0000 | [diff] [blame] | 1064 | program_name=AcquireQuantumMemory(extent,sizeof(*program_name)); |
| 1065 | if (program_name == (char *) NULL) |
| 1066 | program_name=program_invocation_name; |
| 1067 | else |
cristy | b29bea5 | 2011-05-26 17:54:31 +0000 | [diff] [blame] | 1068 | count=FormatLocaleString(program_name,extent,"%s/%s",directory, |
cristy | fa09d14 | 2009-10-15 01:02:25 +0000 | [diff] [blame] | 1069 | program_invocation_name); |
| 1070 | } |
| 1071 | if (count != -1) |
| 1072 | { |
| 1073 | execution_path=realpath(program_name,NULL); |
| 1074 | if (execution_path != (char *) NULL) |
| 1075 | (void) CopyMagickString(path,execution_path,extent); |
| 1076 | } |
| 1077 | if (program_name != program_invocation_name) |
| 1078 | program_name=(char *) RelinquishMagickMemory(program_name); |
| 1079 | execution_path=(char *) RelinquishMagickMemory(execution_path); |
| 1080 | } |
| 1081 | #endif |
cristy | 8a7ca3c | 2013-05-18 21:37:53 +0000 | [diff] [blame] | 1082 | #if defined(__OpenBSD__) |
| 1083 | { |
| 1084 | extern char |
| 1085 | *__progname; |
| 1086 | |
| 1087 | (void) CopyMagickString(path,__progname,extent); |
| 1088 | } |
| 1089 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1090 | return(IsPathAccessible(path)); |
| 1091 | } |
| 1092 | |
| 1093 | /* |
| 1094 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1095 | % % |
| 1096 | % % |
| 1097 | % % |
cristy | 688f07b | 2009-09-27 15:19:13 +0000 | [diff] [blame] | 1098 | % G e t M a g i c k P a g e S i z e % |
| 1099 | % % |
| 1100 | % % |
| 1101 | % % |
| 1102 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1103 | % |
| 1104 | % GetMagickPageSize() returns the memory page size. |
| 1105 | % |
| 1106 | % The format of the GetMagickPageSize method is: |
| 1107 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1108 | % ssize_t GetMagickPageSize() |
cristy | 688f07b | 2009-09-27 15:19:13 +0000 | [diff] [blame] | 1109 | % |
| 1110 | */ |
cristy | d1dd6e4 | 2011-09-04 01:46:08 +0000 | [diff] [blame] | 1111 | MagickPrivate ssize_t GetMagickPageSize(void) |
cristy | 688f07b | 2009-09-27 15:19:13 +0000 | [diff] [blame] | 1112 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1113 | static ssize_t |
cristy | 688f07b | 2009-09-27 15:19:13 +0000 | [diff] [blame] | 1114 | page_size = -1; |
| 1115 | |
| 1116 | if (page_size > 0) |
| 1117 | return(page_size); |
| 1118 | #if defined(MAGICKCORE_HAVE_SYSCONF) && defined(_SC_PAGE_SIZE) |
cristy | ecd0ab5 | 2010-05-30 14:59:20 +0000 | [diff] [blame] | 1119 | page_size=(ssize_t) sysconf(_SC_PAGE_SIZE); |
cristy | 09449f7 | 2010-01-23 03:08:36 +0000 | [diff] [blame] | 1120 | #else |
cristy | 688f07b | 2009-09-27 15:19:13 +0000 | [diff] [blame] | 1121 | #if defined(MAGICKCORE_HAVE_GETPAGESIZE) |
cristy | ecd0ab5 | 2010-05-30 14:59:20 +0000 | [diff] [blame] | 1122 | page_size=(ssize_t) getpagesize(); |
cristy | 09449f7 | 2010-01-23 03:08:36 +0000 | [diff] [blame] | 1123 | #endif |
cristy | 688f07b | 2009-09-27 15:19:13 +0000 | [diff] [blame] | 1124 | #endif |
| 1125 | if (page_size <= 0) |
| 1126 | page_size=16384; |
| 1127 | return(page_size); |
| 1128 | } |
| 1129 | |
| 1130 | /* |
| 1131 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1132 | % % |
| 1133 | % % |
| 1134 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1135 | % G e t P a t h A t t r i b u t e s % |
| 1136 | % % |
| 1137 | % % |
| 1138 | % % |
| 1139 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1140 | % |
| 1141 | % GetPathAttributes() returns attributes (e.g. size of file) about a path. |
| 1142 | % |
| 1143 | % The path of the GetPathAttributes method is: |
| 1144 | % |
| 1145 | % MagickBooleanType GetPathAttributes(const char *path,void *attributes) |
| 1146 | % |
| 1147 | % A description of each parameter follows. |
| 1148 | % |
| 1149 | % o path: the file path. |
| 1150 | % |
| 1151 | % o attributes: the path attributes are returned here. |
| 1152 | % |
| 1153 | */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1154 | MagickExport MagickBooleanType GetPathAttributes(const char *path, |
| 1155 | void *attributes) |
| 1156 | { |
| 1157 | MagickBooleanType |
| 1158 | status; |
| 1159 | |
| 1160 | if (path == (const char *) NULL) |
| 1161 | { |
| 1162 | errno=EINVAL; |
| 1163 | return(MagickFalse); |
| 1164 | } |
cristy | 18c6c27 | 2011-09-23 14:40:37 +0000 | [diff] [blame] | 1165 | status=stat_utf8(path,(struct stat *) attributes) == 0 ? MagickTrue : |
| 1166 | MagickFalse; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1167 | return(status); |
| 1168 | } |
| 1169 | |
| 1170 | /* |
| 1171 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1172 | % % |
| 1173 | % % |
| 1174 | % % |
| 1175 | % G e t P a t h C o m p o n e n t % |
| 1176 | % % |
| 1177 | % % |
| 1178 | % % |
| 1179 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1180 | % |
| 1181 | % GetPathComponent() returns the parent directory name, filename, basename, or |
| 1182 | % extension of a file path. |
| 1183 | % |
anthony | 104f893 | 2012-05-13 01:54:53 +0000 | [diff] [blame] | 1184 | % The component string pointed to must have at least MaxTextExtent space |
| 1185 | % for the results to be stored. |
| 1186 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1187 | % The format of the GetPathComponent function is: |
| 1188 | % |
| 1189 | % GetPathComponent(const char *path,PathType type,char *component) |
| 1190 | % |
| 1191 | % A description of each parameter follows: |
| 1192 | % |
| 1193 | % o path: Specifies a pointer to a character array that contains the |
| 1194 | % file path. |
| 1195 | % |
| 1196 | % o type: Specififies which file path component to return. |
| 1197 | % |
| 1198 | % o component: the selected file path component is returned here. |
| 1199 | % |
| 1200 | */ |
| 1201 | MagickExport void GetPathComponent(const char *path,PathType type, |
| 1202 | char *component) |
| 1203 | { |
| 1204 | char |
| 1205 | magick[MaxTextExtent], |
| 1206 | *q, |
| 1207 | subimage[MaxTextExtent]; |
| 1208 | |
| 1209 | register char |
| 1210 | *p; |
| 1211 | |
| 1212 | assert(path != (const char *) NULL); |
| 1213 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",path); |
| 1214 | assert(component != (char *) NULL); |
| 1215 | if (*path == '\0') |
| 1216 | { |
| 1217 | *component='\0'; |
| 1218 | return; |
| 1219 | } |
| 1220 | (void) CopyMagickString(component,path,MaxTextExtent); |
| 1221 | *magick='\0'; |
cristy | 1224a99 | 2011-10-12 19:23:41 +0000 | [diff] [blame] | 1222 | #if defined(__OS2__) |
| 1223 | if (path[1] != ":") |
| 1224 | #endif |
| 1225 | for (p=component; *p != '\0'; p++) |
| 1226 | { |
| 1227 | if ((*p == '%') && (*(p+1) == '[')) |
| 1228 | { |
| 1229 | /* |
| 1230 | Skip over %[...]. |
| 1231 | */ |
| 1232 | for (p++; (*p != ']') && (*p != '\0'); p++) ; |
| 1233 | if (*p == '\0') |
| 1234 | break; |
| 1235 | } |
| 1236 | if ((*p == ':') && (IsPathDirectory(path) < 0) && |
| 1237 | (IsPathAccessible(path) == MagickFalse)) |
| 1238 | { |
| 1239 | /* |
| 1240 | Look for image format specification (e.g. ps3:image). |
| 1241 | */ |
| 1242 | (void) CopyMagickString(magick,component,(size_t) (p-component+1)); |
| 1243 | if (IsMagickConflict(magick) != MagickFalse) |
| 1244 | *magick='\0'; |
| 1245 | else |
| 1246 | for (q=component; *q != '\0'; q++) |
| 1247 | *q=(*++p); |
| 1248 | break; |
| 1249 | } |
| 1250 | } |
cristy | 86057c4 | 2011-08-03 18:12:58 +0000 | [diff] [blame] | 1251 | *subimage='\0'; |
| 1252 | p=component; |
| 1253 | if (*p != '\0') |
| 1254 | p=component+strlen(component)-1; |
| 1255 | if ((*p == ']') && (strchr(component,'[') != (char *) NULL) && |
| 1256 | (IsPathAccessible(path) == MagickFalse)) |
| 1257 | { |
| 1258 | /* |
| 1259 | Look for scene specification (e.g. img0001.pcd[4]). |
| 1260 | */ |
| 1261 | for (q=p-1; q > component; q--) |
| 1262 | if (*q == '[') |
| 1263 | break; |
| 1264 | if (*q == '[') |
| 1265 | { |
| 1266 | (void) CopyMagickString(subimage,q+1,MaxTextExtent); |
| 1267 | subimage[p-q-1]='\0'; |
| 1268 | if ((IsSceneGeometry(subimage,MagickFalse) == MagickFalse) && |
| 1269 | (IsGeometry(subimage) == MagickFalse)) |
| 1270 | *subimage='\0'; |
cristy | 1224a99 | 2011-10-12 19:23:41 +0000 | [diff] [blame] | 1271 | else |
| 1272 | *q='\0'; |
cristy | 86057c4 | 2011-08-03 18:12:58 +0000 | [diff] [blame] | 1273 | } |
| 1274 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1275 | p=component; |
| 1276 | if (*p != '\0') |
| 1277 | for (p=component+strlen(component)-1; p > component; p--) |
| 1278 | if (IsBasenameSeparator(*p) != MagickFalse) |
| 1279 | break; |
| 1280 | switch (type) |
| 1281 | { |
| 1282 | case MagickPath: |
| 1283 | { |
| 1284 | (void) CopyMagickString(component,magick,MaxTextExtent); |
| 1285 | break; |
| 1286 | } |
| 1287 | case RootPath: |
| 1288 | { |
| 1289 | for (p=component+(strlen(component)-1); p > component; p--) |
| 1290 | { |
| 1291 | if (IsBasenameSeparator(*p) != MagickFalse) |
| 1292 | break; |
| 1293 | if (*p == '.') |
| 1294 | break; |
| 1295 | } |
| 1296 | if (*p == '.') |
| 1297 | *p='\0'; |
| 1298 | break; |
| 1299 | } |
| 1300 | case HeadPath: |
| 1301 | { |
| 1302 | *p='\0'; |
| 1303 | break; |
| 1304 | } |
| 1305 | case TailPath: |
| 1306 | { |
| 1307 | if (IsBasenameSeparator(*p) != MagickFalse) |
| 1308 | (void) CopyMagickMemory((unsigned char *) component, |
| 1309 | (const unsigned char *) (p+1),strlen(p+1)+1); |
| 1310 | break; |
| 1311 | } |
| 1312 | case BasePath: |
| 1313 | { |
| 1314 | if (IsBasenameSeparator(*p) != MagickFalse) |
| 1315 | (void) CopyMagickString(component,p+1,MaxTextExtent); |
| 1316 | for (p=component+(strlen(component)-1); p > component; p--) |
| 1317 | if (*p == '.') |
| 1318 | { |
| 1319 | *p='\0'; |
| 1320 | break; |
| 1321 | } |
| 1322 | break; |
| 1323 | } |
| 1324 | case ExtensionPath: |
| 1325 | { |
| 1326 | if (IsBasenameSeparator(*p) != MagickFalse) |
| 1327 | (void) CopyMagickString(component,p+1,MaxTextExtent); |
| 1328 | p=component; |
| 1329 | if (*p != '\0') |
| 1330 | for (p=component+strlen(component)-1; p > component; p--) |
| 1331 | if (*p == '.') |
| 1332 | break; |
| 1333 | *component='\0'; |
| 1334 | if (*p == '.') |
| 1335 | (void) CopyMagickString(component,p+1,MaxTextExtent); |
| 1336 | break; |
| 1337 | } |
| 1338 | case SubimagePath: |
| 1339 | { |
| 1340 | (void) CopyMagickString(component,subimage,MaxTextExtent); |
| 1341 | break; |
| 1342 | } |
| 1343 | case CanonicalPath: |
| 1344 | case UndefinedPath: |
| 1345 | break; |
| 1346 | } |
| 1347 | } |
| 1348 | |
| 1349 | /* |
| 1350 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1351 | % % |
| 1352 | % % |
| 1353 | % % |
| 1354 | % G e t P a t h C o m p o n e n t s % |
| 1355 | % % |
| 1356 | % % |
| 1357 | % % |
| 1358 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1359 | % |
| 1360 | % GetPathComponents() returns a list of path components. |
| 1361 | % |
| 1362 | % The format of the GetPathComponents method is: |
| 1363 | % |
| 1364 | % char **GetPathComponents(const char *path, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1365 | % size_t *number_componenets) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1366 | % |
| 1367 | % A description of each parameter follows: |
| 1368 | % |
| 1369 | % o path: Specifies the string to segment into a list. |
| 1370 | % |
| 1371 | % o number_components: return the number of components in the list |
| 1372 | % |
| 1373 | */ |
cristy | d1dd6e4 | 2011-09-04 01:46:08 +0000 | [diff] [blame] | 1374 | MagickPrivate char **GetPathComponents(const char *path, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1375 | size_t *number_components) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1376 | { |
| 1377 | char |
| 1378 | **components; |
| 1379 | |
| 1380 | register const char |
| 1381 | *p, |
| 1382 | *q; |
| 1383 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1384 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1385 | i; |
| 1386 | |
| 1387 | if (path == (char *) NULL) |
| 1388 | return((char **) NULL); |
| 1389 | *number_components=1; |
| 1390 | for (p=path; *p != '\0'; p++) |
| 1391 | if (IsBasenameSeparator(*p)) |
| 1392 | (*number_components)++; |
| 1393 | components=(char **) AcquireQuantumMemory((size_t) *number_components+1UL, |
| 1394 | sizeof(*components)); |
| 1395 | if (components == (char **) NULL) |
| 1396 | ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); |
| 1397 | p=path; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1398 | for (i=0; i < (ssize_t) *number_components; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1399 | { |
| 1400 | for (q=p; *q != '\0'; q++) |
| 1401 | if (IsBasenameSeparator(*q)) |
| 1402 | break; |
| 1403 | components[i]=(char *) AcquireQuantumMemory((size_t) (q-p)+MaxTextExtent, |
cristy | c92c1e1 | 2011-03-25 15:47:59 +0000 | [diff] [blame] | 1404 | sizeof(**components)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1405 | if (components[i] == (char *) NULL) |
| 1406 | ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); |
| 1407 | (void) CopyMagickString(components[i],p,(size_t) (q-p+1)); |
| 1408 | p=q+1; |
| 1409 | } |
| 1410 | components[i]=(char *) NULL; |
| 1411 | return(components); |
| 1412 | } |
| 1413 | |
| 1414 | /* |
| 1415 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1416 | % % |
| 1417 | % % |
| 1418 | % % |
| 1419 | % I s P a t h A c c e s s i b l e % |
| 1420 | % % |
| 1421 | % % |
| 1422 | % % |
| 1423 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1424 | % |
| 1425 | % IsPathAccessible() returns MagickTrue if the file as defined by the path is |
| 1426 | % accessible. |
| 1427 | % |
| 1428 | % The format of the IsPathAccessible method is: |
| 1429 | % |
cristy | 5986456 | 2013-04-18 11:47:41 +0000 | [diff] [blame] | 1430 | % MagickBooleanType IsPathAccessible(const char *path) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1431 | % |
| 1432 | % A description of each parameter follows. |
| 1433 | % |
| 1434 | % o path: Specifies a path to a file. |
| 1435 | % |
| 1436 | */ |
| 1437 | MagickExport MagickBooleanType IsPathAccessible(const char *path) |
| 1438 | { |
| 1439 | MagickBooleanType |
| 1440 | status; |
| 1441 | |
| 1442 | struct stat |
| 1443 | attributes; |
| 1444 | |
| 1445 | if ((path == (const char *) NULL) || (*path == '\0')) |
| 1446 | return(MagickFalse); |
| 1447 | status=GetPathAttributes(path,&attributes); |
| 1448 | if (status == MagickFalse) |
| 1449 | return(status); |
| 1450 | if (S_ISREG(attributes.st_mode) == 0) |
| 1451 | return(MagickFalse); |
cristy | 18c6c27 | 2011-09-23 14:40:37 +0000 | [diff] [blame] | 1452 | if (access_utf8(path,F_OK) != 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1453 | return(MagickFalse); |
| 1454 | return(MagickTrue); |
| 1455 | } |
| 1456 | |
| 1457 | /* |
| 1458 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1459 | % % |
| 1460 | % % |
| 1461 | % % |
| 1462 | + I s P a t h D i r e c t o r y % |
| 1463 | % % |
| 1464 | % % |
| 1465 | % % |
| 1466 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1467 | % |
| 1468 | % IsPathDirectory() returns -1 if the directory does not exist, 1 is returned |
| 1469 | % if the path represents a directory otherwise 0. |
| 1470 | % |
| 1471 | % The format of the IsPathDirectory method is: |
| 1472 | % |
| 1473 | % int IsPathDirectory(const char *path) |
| 1474 | % |
| 1475 | % A description of each parameter follows. |
| 1476 | % |
| 1477 | % o path: The directory path. |
| 1478 | % |
| 1479 | */ |
| 1480 | static int IsPathDirectory(const char *path) |
| 1481 | { |
| 1482 | MagickBooleanType |
| 1483 | status; |
| 1484 | |
| 1485 | struct stat |
| 1486 | attributes; |
| 1487 | |
| 1488 | if ((path == (const char *) NULL) || (*path == '\0')) |
| 1489 | return(MagickFalse); |
| 1490 | status=GetPathAttributes(path,&attributes); |
| 1491 | if (status == MagickFalse) |
| 1492 | return(-1); |
| 1493 | if (S_ISDIR(attributes.st_mode) == 0) |
| 1494 | return(0); |
| 1495 | return(1); |
| 1496 | } |
| 1497 | |
| 1498 | /* |
| 1499 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1500 | % % |
| 1501 | % % |
| 1502 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1503 | % L i s t F i l e s % |
| 1504 | % % |
| 1505 | % % |
| 1506 | % % |
| 1507 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1508 | % |
| 1509 | % ListFiles() reads the directory specified and returns a list of filenames |
| 1510 | % contained in the directory sorted in ascending alphabetic order. |
| 1511 | % |
| 1512 | % The format of the ListFiles function is: |
| 1513 | % |
| 1514 | % char **ListFiles(const char *directory,const char *pattern, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1515 | % ssize_t *number_entries) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1516 | % |
| 1517 | % A description of each parameter follows: |
| 1518 | % |
| 1519 | % o filelist: Method ListFiles returns a list of filenames contained |
| 1520 | % in the directory. If the directory specified cannot be read or it is |
| 1521 | % a file a NULL list is returned. |
| 1522 | % |
| 1523 | % o directory: Specifies a pointer to a text string containing a directory |
| 1524 | % name. |
| 1525 | % |
| 1526 | % o pattern: Specifies a pointer to a text string containing a pattern. |
| 1527 | % |
| 1528 | % o number_entries: This integer returns the number of filenames in the |
| 1529 | % list. |
| 1530 | % |
| 1531 | */ |
| 1532 | |
| 1533 | #if defined(__cplusplus) || defined(c_plusplus) |
| 1534 | extern "C" { |
| 1535 | #endif |
| 1536 | |
| 1537 | static int FileCompare(const void *x,const void *y) |
| 1538 | { |
| 1539 | register const char |
| 1540 | **p, |
| 1541 | **q; |
| 1542 | |
| 1543 | p=(const char **) x; |
| 1544 | q=(const char **) y; |
| 1545 | return(LocaleCompare(*p,*q)); |
| 1546 | } |
| 1547 | |
| 1548 | #if defined(__cplusplus) || defined(c_plusplus) |
| 1549 | } |
| 1550 | #endif |
| 1551 | |
| 1552 | static inline int MagickReadDirectory(DIR *directory,struct dirent *entry, |
| 1553 | struct dirent **result) |
| 1554 | { |
| 1555 | #if defined(MAGICKCORE_HAVE_READDIR_R) |
| 1556 | return(readdir_r(directory,entry,result)); |
| 1557 | #else |
| 1558 | (void) entry; |
| 1559 | errno=0; |
| 1560 | *result=readdir(directory); |
| 1561 | return(errno); |
| 1562 | #endif |
| 1563 | } |
| 1564 | |
cristy | d1dd6e4 | 2011-09-04 01:46:08 +0000 | [diff] [blame] | 1565 | MagickPrivate char **ListFiles(const char *directory,const char *pattern, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1566 | size_t *number_entries) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1567 | { |
| 1568 | char |
| 1569 | **filelist; |
| 1570 | |
| 1571 | DIR |
| 1572 | *current_directory; |
| 1573 | |
| 1574 | struct dirent |
| 1575 | *buffer, |
| 1576 | *entry; |
| 1577 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1578 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1579 | max_entries; |
| 1580 | |
| 1581 | /* |
| 1582 | Open directory. |
| 1583 | */ |
| 1584 | assert(directory != (const char *) NULL); |
| 1585 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",directory); |
| 1586 | assert(pattern != (const char *) NULL); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1587 | assert(number_entries != (size_t *) NULL); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1588 | *number_entries=0; |
| 1589 | current_directory=opendir(directory); |
| 1590 | if (current_directory == (DIR *) NULL) |
| 1591 | return((char **) NULL); |
| 1592 | /* |
| 1593 | Allocate filelist. |
| 1594 | */ |
| 1595 | max_entries=2048; |
| 1596 | filelist=(char **) AcquireQuantumMemory((size_t) max_entries, |
| 1597 | sizeof(*filelist)); |
| 1598 | if (filelist == (char **) NULL) |
| 1599 | { |
| 1600 | (void) closedir(current_directory); |
| 1601 | return((char **) NULL); |
| 1602 | } |
| 1603 | /* |
| 1604 | Save the current and change to the new directory. |
| 1605 | */ |
cristy | 6e6c822 | 2014-10-18 00:19:27 +0000 | [diff] [blame^] | 1606 | buffer=(struct dirent *) AcquireMagickMemory(sizeof(*buffer)+FILENAME_MAX+1); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1607 | if (buffer == (struct dirent *) NULL) |
| 1608 | ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); |
| 1609 | while ((MagickReadDirectory(current_directory,buffer,&entry) == 0) && |
| 1610 | (entry != (struct dirent *) NULL)) |
| 1611 | { |
| 1612 | if (*entry->d_name == '.') |
| 1613 | continue; |
| 1614 | if ((IsPathDirectory(entry->d_name) > 0) || |
cristy | 0157aea | 2010-04-24 21:12:18 +0000 | [diff] [blame] | 1615 | #if defined(MAGICKCORE_WINDOWS_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1616 | (GlobExpression(entry->d_name,pattern,MagickTrue) != MagickFalse)) |
| 1617 | #else |
| 1618 | (GlobExpression(entry->d_name,pattern,MagickFalse) != MagickFalse)) |
| 1619 | #endif |
| 1620 | { |
| 1621 | if (*number_entries >= max_entries) |
| 1622 | { |
| 1623 | /* |
| 1624 | Extend the file list. |
| 1625 | */ |
| 1626 | max_entries<<=1; |
| 1627 | filelist=(char **) ResizeQuantumMemory(filelist,(size_t) |
| 1628 | max_entries,sizeof(*filelist)); |
| 1629 | if (filelist == (char **) NULL) |
| 1630 | break; |
| 1631 | } |
| 1632 | #if defined(vms) |
| 1633 | { |
| 1634 | register char |
| 1635 | *p; |
| 1636 | |
| 1637 | p=strchr(entry->d_name,';'); |
| 1638 | if (p) |
| 1639 | *p='\0'; |
| 1640 | if (*number_entries > 0) |
| 1641 | if (LocaleCompare(entry->d_name,filelist[*number_entries-1]) == 0) |
| 1642 | continue; |
| 1643 | } |
| 1644 | #endif |
| 1645 | filelist[*number_entries]=(char *) AcquireString(entry->d_name); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1646 | (*number_entries)++; |
| 1647 | } |
| 1648 | } |
| 1649 | buffer=(struct dirent *) RelinquishMagickMemory(buffer); |
| 1650 | (void) closedir(current_directory); |
| 1651 | if (filelist == (char **) NULL) |
| 1652 | return((char **) NULL); |
| 1653 | /* |
| 1654 | Sort filelist in ascending order. |
| 1655 | */ |
| 1656 | qsort((void *) filelist,(size_t) *number_entries,sizeof(*filelist), |
| 1657 | FileCompare); |
| 1658 | return(filelist); |
| 1659 | } |
| 1660 | |
| 1661 | /* |
| 1662 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1663 | % % |
| 1664 | % % |
| 1665 | % % |
cristy | a21afde | 2010-07-02 00:45:40 +0000 | [diff] [blame] | 1666 | % M a g i c k D e l a y % |
| 1667 | % % |
| 1668 | % % |
| 1669 | % % |
| 1670 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1671 | % |
| 1672 | % MagickDelay() suspends program execution for the number of milliseconds |
| 1673 | % specified. |
| 1674 | % |
| 1675 | % The format of the Delay method is: |
| 1676 | % |
| 1677 | % void MagickDelay(const MagickSizeType milliseconds) |
| 1678 | % |
| 1679 | % A description of each parameter follows: |
| 1680 | % |
| 1681 | % o milliseconds: Specifies the number of milliseconds to delay before |
| 1682 | % returning. |
| 1683 | % |
| 1684 | */ |
cristy | d1dd6e4 | 2011-09-04 01:46:08 +0000 | [diff] [blame] | 1685 | MagickPrivate void MagickDelay(const MagickSizeType milliseconds) |
cristy | a21afde | 2010-07-02 00:45:40 +0000 | [diff] [blame] | 1686 | { |
| 1687 | if (milliseconds == 0) |
| 1688 | return; |
| 1689 | #if defined(MAGICKCORE_HAVE_NANOSLEEP) |
| 1690 | { |
| 1691 | struct timespec |
| 1692 | timer; |
| 1693 | |
| 1694 | timer.tv_sec=(time_t) (milliseconds/1000); |
| 1695 | timer.tv_nsec=(milliseconds % 1000)*1000*1000; |
| 1696 | (void) nanosleep(&timer,(struct timespec *) NULL); |
| 1697 | } |
| 1698 | #elif defined(MAGICKCORE_HAVE_USLEEP) |
| 1699 | usleep(1000*milliseconds); |
| 1700 | #elif defined(MAGICKCORE_HAVE_SELECT) |
| 1701 | { |
| 1702 | struct timeval |
| 1703 | timer; |
| 1704 | |
| 1705 | timer.tv_sec=(long) milliseconds/1000; |
| 1706 | timer.tv_usec=(long) (milliseconds % 1000)*1000; |
| 1707 | (void) select(0,(XFD_SET *) NULL,(XFD_SET *) NULL,(XFD_SET *) NULL,&timer); |
| 1708 | } |
| 1709 | #elif defined(MAGICKCORE_HAVE_POLL) |
| 1710 | (void) poll((struct pollfd *) NULL,0,(int) milliseconds); |
| 1711 | #elif defined(MAGICKCORE_WINDOWS_SUPPORT) |
| 1712 | Sleep((long) milliseconds); |
| 1713 | #elif defined(vms) |
| 1714 | { |
| 1715 | float |
| 1716 | timer; |
| 1717 | |
| 1718 | timer=milliseconds/1000.0; |
| 1719 | lib$wait(&timer); |
| 1720 | } |
| 1721 | #elif defined(__BEOS__) |
| 1722 | snooze(1000*milliseconds); |
| 1723 | #else |
| 1724 | # error "Time delay method not defined." |
| 1725 | #endif |
| 1726 | } |
| 1727 | |
| 1728 | /* |
| 1729 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1730 | % % |
| 1731 | % % |
| 1732 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1733 | % M u l t i l i n e C e n s u s % |
| 1734 | % % |
| 1735 | % % |
| 1736 | % % |
| 1737 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1738 | % |
| 1739 | % MultilineCensus() returns the number of lines within a label. A line is |
| 1740 | % represented by a \n character. |
| 1741 | % |
| 1742 | % The format of the MultilineCenus method is: |
| 1743 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1744 | % size_t MultilineCensus(const char *label) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1745 | % |
| 1746 | % A description of each parameter follows. |
| 1747 | % |
| 1748 | % o label: This character string is the label. |
| 1749 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1750 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1751 | MagickExport size_t MultilineCensus(const char *label) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1752 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1753 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1754 | number_lines; |
| 1755 | |
| 1756 | /* |
| 1757 | Determine the number of lines within this label. |
| 1758 | */ |
| 1759 | if (label == (char *) NULL) |
| 1760 | return(0); |
| 1761 | for (number_lines=1; *label != '\0'; label++) |
| 1762 | if (*label == '\n') |
| 1763 | number_lines++; |
| 1764 | return(number_lines); |
| 1765 | } |
| 1766 | |
| 1767 | /* |
| 1768 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1769 | % % |
| 1770 | % % |
| 1771 | % % |
cristy | 5986456 | 2013-04-18 11:47:41 +0000 | [diff] [blame] | 1772 | % S h r e a d F i l e % |
| 1773 | % % |
| 1774 | % % |
| 1775 | % % |
| 1776 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1777 | % |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1778 | % ShredFile() overwrites the specified file with zeros or random data and then |
| 1779 | % removes it. The overwrite is optional and is only required to help keep |
cristy | 3c91e2d | 2013-04-18 12:55:47 +0000 | [diff] [blame] | 1780 | % the contents of the file private. On the first pass, the file is zeroed. |
| 1781 | % For subsequent passes, random data is written. |
cristy | 5986456 | 2013-04-18 11:47:41 +0000 | [diff] [blame] | 1782 | % |
| 1783 | % The format of the ShredFile method is: |
| 1784 | % |
| 1785 | % MagickBooleanType ShredFile(const char *path) |
| 1786 | % |
| 1787 | % A description of each parameter follows. |
| 1788 | % |
| 1789 | % o path: Specifies a path to a file. |
| 1790 | % |
| 1791 | */ |
| 1792 | MagickPrivate MagickBooleanType ShredFile(const char *path) |
| 1793 | { |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1794 | char |
cristy | 3c91e2d | 2013-04-18 12:55:47 +0000 | [diff] [blame] | 1795 | *passes; |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1796 | |
cristy | 5986456 | 2013-04-18 11:47:41 +0000 | [diff] [blame] | 1797 | int |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1798 | file, |
cristy | 5986456 | 2013-04-18 11:47:41 +0000 | [diff] [blame] | 1799 | status; |
| 1800 | |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1801 | MagickSizeType |
| 1802 | length; |
| 1803 | |
| 1804 | register ssize_t |
| 1805 | i; |
| 1806 | |
| 1807 | size_t |
| 1808 | quantum; |
| 1809 | |
| 1810 | struct stat |
| 1811 | file_stats; |
| 1812 | |
cristy | 5986456 | 2013-04-18 11:47:41 +0000 | [diff] [blame] | 1813 | if ((path == (const char *) NULL) || (*path == '\0')) |
| 1814 | return(MagickFalse); |
cristy | 8a23f66 | 2014-03-26 20:58:19 +0000 | [diff] [blame] | 1815 | passes=GetEnvironmentValue("MAGICK_SHRED_PASSES"); |
cristy | 3c91e2d | 2013-04-18 12:55:47 +0000 | [diff] [blame] | 1816 | if (passes == (char *) NULL) |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1817 | { |
| 1818 | /* |
| 1819 | Don't shred the file, just remove it. |
| 1820 | */ |
| 1821 | status=remove_utf8(path); |
| 1822 | if (status == -1) |
| 1823 | return(MagickFalse); |
| 1824 | return(MagickTrue); |
| 1825 | } |
| 1826 | file=open_utf8(path,O_WRONLY | O_EXCL | O_BINARY,S_MODE); |
| 1827 | if (file == -1) |
cristy | d2ce360 | 2013-04-18 19:30:20 +0000 | [diff] [blame] | 1828 | { |
| 1829 | /* |
| 1830 | Don't shred the file, just remove it. |
| 1831 | */ |
| 1832 | status=remove_utf8(path); |
| 1833 | return(MagickFalse); |
| 1834 | } |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1835 | /* |
| 1836 | Shred the file. |
| 1837 | */ |
| 1838 | quantum=(size_t) MagickMaxBufferExtent; |
| 1839 | if ((fstat(file,&file_stats) == 0) && (file_stats.st_size != 0)) |
| 1840 | quantum=(size_t) MagickMin((MagickSizeType) file_stats.st_size, |
| 1841 | MagickMaxBufferExtent); |
| 1842 | length=(MagickSizeType) file_stats.st_size; |
cristy | 94cc10e | 2013-04-18 19:17:04 +0000 | [diff] [blame] | 1843 | for (i=0; i < (ssize_t) StringToInteger(passes); i++) |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1844 | { |
| 1845 | RandomInfo |
| 1846 | *random_info; |
| 1847 | |
cristy | 6e31dc7 | 2013-04-18 19:22:03 +0000 | [diff] [blame] | 1848 | register MagickOffsetType |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1849 | j; |
| 1850 | |
| 1851 | ssize_t |
| 1852 | count; |
| 1853 | |
| 1854 | if (lseek(file,0,SEEK_SET) < 0) |
| 1855 | break; |
| 1856 | random_info=AcquireRandomInfo(); |
cristy | 6e31dc7 | 2013-04-18 19:22:03 +0000 | [diff] [blame] | 1857 | for (j=0; j < (MagickOffsetType) length; j+=count) |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1858 | { |
| 1859 | StringInfo |
| 1860 | *key; |
| 1861 | |
| 1862 | key=GetRandomKey(random_info,quantum); |
cristy | 689d985 | 2013-04-18 19:19:01 +0000 | [diff] [blame] | 1863 | if (i == 0) |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1864 | ResetStringInfo(key); /* zero on first pass */ |
| 1865 | count=write(file,GetStringInfoDatum(key),(size_t) |
| 1866 | MagickMin(quantum,length-j)); |
| 1867 | key=DestroyStringInfo(key); |
| 1868 | if (count <= 0) |
| 1869 | { |
| 1870 | count=0; |
| 1871 | if (errno != EINTR) |
| 1872 | break; |
| 1873 | } |
| 1874 | } |
| 1875 | random_info=DestroyRandomInfo(random_info); |
cristy | 2a927fa | 2013-04-18 19:34:02 +0000 | [diff] [blame] | 1876 | if (j < (MagickOffsetType) length) |
cristy | 403ae7b | 2013-04-18 12:49:11 +0000 | [diff] [blame] | 1877 | break; |
| 1878 | } |
| 1879 | status=close(file); |
cristy | 5986456 | 2013-04-18 11:47:41 +0000 | [diff] [blame] | 1880 | status=remove_utf8(path); |
| 1881 | if (status == -1) |
| 1882 | return(MagickFalse); |
cristy | d2ce360 | 2013-04-18 19:30:20 +0000 | [diff] [blame] | 1883 | return(i < (ssize_t) StringToInteger(passes) ? MagickFalse : MagickTrue); |
cristy | 5986456 | 2013-04-18 11:47:41 +0000 | [diff] [blame] | 1884 | } |