47 #include "magick/studio.h"
48 #include "magick/blob.h"
49 #include "magick/blob-private.h"
50 #include "magick/cache.h"
51 #include "magick/client.h"
52 #include "magick/constitute.h"
53 #include "magick/delegate.h"
54 #include "magick/exception.h"
55 #include "magick/exception-private.h"
56 #include "magick/geometry.h"
57 #include "magick/image-private.h"
58 #include "magick/list.h"
59 #include "magick/locale_.h"
60 #include "magick/log.h"
61 #include "magick/magick.h"
62 #include "magick/memory_.h"
63 #include "magick/nt-base-private.h"
64 #include "magick/option.h"
65 #include "magick/policy.h"
66 #include "magick/resource_.h"
67 #include "magick/semaphore.h"
68 #include "magick/string_.h"
69 #include "magick/string-private.h"
70 #include "magick/timer-private.h"
71 #include "magick/token.h"
72 #include "magick/utility.h"
73 #include "magick/utility-private.h"
74 #if defined(MAGICKCORE_ZLIB_DELEGATE)
77 #if defined(MAGICKCORE_BZLIB_DELEGATE)
84 #define MagickMaxBlobExtent (8*8192)
85 #if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
86 # define MAP_ANONYMOUS MAP_ANON
88 #if !defined(MAP_FAILED)
89 #define MAP_FAILED ((void *) -1)
93 #define _O_BINARY O_BINARY
104 #if defined(MAGICKCORE_ZLIB_DELEGATE)
109 #if defined(MAGICKCORE_BZLIB_DELEGATE)
206 MagickExport
void AttachBlob(
BlobInfo *blob_info,
const void *blob,
209 assert(blob_info != (
BlobInfo *) NULL);
210 if (IsEventLogging() != MagickFalse)
211 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
212 blob_info->length=length;
213 blob_info->extent=length;
214 blob_info->quantum=(size_t) MagickMaxBlobExtent;
216 blob_info->type=BlobStream;
217 blob_info->file_info.file=(FILE *) NULL;
218 blob_info->data=(
unsigned char *) blob;
219 blob_info->mapped=MagickFalse;
252 MagickExport MagickBooleanType BlobToFile(
char *filename,
const void *blob,
264 assert(filename != (
const char *) NULL);
265 assert(blob != (
const void *) NULL);
266 if (IsEventLogging() != MagickFalse)
267 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",filename);
268 if (*filename ==
'\0')
269 file=AcquireUniqueFileResource(filename);
271 file=open_utf8(filename,O_RDWR | O_CREAT | O_EXCL | O_BINARY,S_MODE);
274 ThrowFileException(exception,BlobError,
"UnableToWriteBlob",filename);
277 for (i=0; i < length; i+=count)
279 count=write(file,(
const char *) blob+i,MagickMin(length-i,(
size_t)
289 if ((file == -1) || (i < length))
291 ThrowFileException(exception,BlobError,
"UnableToWriteBlob",filename);
328 MagickExport
Image *BlobToImage(
const ImageInfo *image_info,
const void *blob,
344 assert(image_info != (
ImageInfo *) NULL);
345 assert(image_info->signature == MagickCoreSignature);
347 if (IsEventLogging() != MagickFalse)
348 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",
349 image_info->filename);
350 if ((blob == (
const void *) NULL) || (length == 0))
352 (void) ThrowMagickException(exception,GetMagickModule(),BlobError,
353 "ZeroLengthBlobNotPermitted",
"`%s'",image_info->filename);
354 return((
Image *) NULL);
356 blob_info=CloneImageInfo(image_info);
357 blob_info->blob=(
void *) blob;
358 blob_info->length=length;
359 if (*blob_info->magick ==
'\0')
360 (void) SetImageInfo(blob_info,0,exception);
361 magick_info=GetMagickInfo(blob_info->magick,exception);
364 (void) ThrowMagickException(exception,GetMagickModule(),
365 MissingDelegateError,
"NoDecodeDelegateForThisImageFormat",
"`%s'",
367 blob_info=DestroyImageInfo(blob_info);
368 return((
Image *) NULL);
370 if (GetMagickBlobSupport(magick_info) != MagickFalse)
373 filename[MagickPathExtent];
378 (void) CopyMagickString(filename,blob_info->filename,MagickPathExtent);
379 (void) FormatLocaleString(blob_info->filename,MagickPathExtent,
"%s:%s",
380 blob_info->magick,filename);
381 image=ReadImage(blob_info,exception);
382 if (image != (
Image *) NULL)
383 (void) DetachBlob(image->blob);
384 blob_info=DestroyImageInfo(blob_info);
390 blob_info->blob=(
void *) NULL;
392 *blob_info->filename=
'\0';
393 status=BlobToFile(blob_info->filename,blob,length,exception);
394 if (status == MagickFalse)
396 (void) RelinquishUniqueFileResource(blob_info->filename);
397 blob_info=DestroyImageInfo(blob_info);
398 return((
Image *) NULL);
400 clone_info=CloneImageInfo(blob_info);
401 (void) FormatLocaleString(clone_info->filename,MagickPathExtent,
"%s:%s",
402 blob_info->magick,blob_info->filename);
403 image=ReadImage(clone_info,exception);
404 if (image != (
Image *) NULL)
412 for (images=GetFirstImageInList(image); images != (
Image *) NULL; )
414 (void) CopyMagickString(images->filename,image_info->filename,
416 (void) CopyMagickString(images->magick_filename,image_info->filename,
418 (void) CopyMagickString(images->magick,magick_info->name,
420 images=GetNextImageInList(images);
423 clone_info=DestroyImageInfo(clone_info);
424 (void) RelinquishUniqueFileResource(blob_info->filename);
425 blob_info=DestroyImageInfo(blob_info);
460 clone_info=(
BlobInfo *) AcquireCriticalMemory(
sizeof(*clone_info));
461 GetBlobInfo(clone_info);
464 semaphore=clone_info->semaphore;
465 (void) memcpy(clone_info,blob_info,
sizeof(*clone_info));
466 if (blob_info->mapped != MagickFalse)
467 (void) AcquireMagickResource(MapResource,blob_info->length);
468 clone_info->semaphore=semaphore;
469 LockSemaphoreInfo(clone_info->semaphore);
470 clone_info->reference_count=1;
471 UnlockSemaphoreInfo(clone_info->semaphore);
498 static inline void ThrowBlobException(
BlobInfo *blob_info)
500 if ((blob_info->status == MagickFalse) && (errno != 0))
501 blob_info->error_number=errno;
502 blob_info->status=MagickTrue;
505 MagickExport MagickBooleanType CloseBlob(
Image *image)
508 *magick_restrict blob_info;
516 assert(image != (
Image *) NULL);
517 assert(image->signature == MagickCoreSignature);
518 if (IsEventLogging() != MagickFalse)
519 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
520 blob_info=image->blob;
521 if ((blob_info == (
BlobInfo *) NULL) || (blob_info->type == UndefinedStream))
523 status=SyncBlob(image);
524 switch (blob_info->type)
526 case UndefinedStream:
532 if (blob_info->synchronize != MagickFalse)
534 status=fflush(blob_info->file_info.file);
536 ThrowBlobException(blob_info);
537 status=fsync(fileno(blob_info->file_info.file));
539 ThrowBlobException(blob_info);
541 if ((status != 0) && (ferror(blob_info->file_info.file) != 0))
542 ThrowBlobException(blob_info);
547 #if defined(MAGICKCORE_ZLIB_DELEGATE)
549 (void) gzerror(blob_info->file_info.gzfile,&status);
551 ThrowBlobException(blob_info);
557 #if defined(MAGICKCORE_BZLIB_DELEGATE)
559 (void) BZ2_bzerror(blob_info->file_info.bzfile,&status);
561 ThrowBlobException(blob_info);
569 if (blob_info->file_info.file != (FILE *) NULL)
571 if (blob_info->synchronize != MagickFalse)
573 status=fflush(blob_info->file_info.file);
575 ThrowBlobException(blob_info);
576 status=fsync(fileno(blob_info->file_info.file));
578 ThrowBlobException(blob_info);
580 if ((status != 0) && (ferror(blob_info->file_info.file) != 0))
581 ThrowBlobException(blob_info);
586 blob_info->size=GetBlobSize(image);
587 image->extent=blob_info->size;
588 blob_info->eof=MagickFalse;
590 blob_info->mode=UndefinedBlobMode;
591 if (blob_info->exempt != MagickFalse)
593 blob_info->type=UndefinedStream;
594 return(blob_info->status);
596 switch (blob_info->type)
598 case UndefinedStream:
603 if (blob_info->file_info.file != (FILE *) NULL)
605 status=fclose(blob_info->file_info.file);
607 ThrowBlobException(blob_info);
613 #if defined(MAGICKCORE_HAVE_PCLOSE)
614 status=pclose(blob_info->file_info.file);
616 ThrowBlobException(blob_info);
622 #if defined(MAGICKCORE_ZLIB_DELEGATE)
623 status=gzclose(blob_info->file_info.gzfile);
625 ThrowBlobException(blob_info);
631 #if defined(MAGICKCORE_BZLIB_DELEGATE)
632 BZ2_bzclose(blob_info->file_info.bzfile);
640 if (blob_info->file_info.file != (FILE *) NULL)
642 status=fclose(blob_info->file_info.file);
644 ThrowBlobException(blob_info);
649 (void) DetachBlob(blob_info);
650 return(blob_info->status);
675 MagickExport
void DestroyBlob(
Image *image)
678 *magick_restrict blob_info;
683 assert(image != (
Image *) NULL);
684 assert(image->signature == MagickCoreSignature);
685 assert(image->blob != (
BlobInfo *) NULL);
686 assert(image->blob->signature == MagickCoreSignature);
687 if (IsEventLogging() != MagickFalse)
688 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
689 blob_info=image->blob;
691 LockSemaphoreInfo(blob_info->semaphore);
692 blob_info->reference_count--;
693 assert(blob_info->reference_count >= 0);
694 if (blob_info->reference_count == 0)
696 UnlockSemaphoreInfo(blob_info->semaphore);
697 if (destroy == MagickFalse)
702 (void) CloseBlob(image);
703 if (blob_info->mapped != MagickFalse)
705 (void) UnmapBlob(blob_info->data,blob_info->length);
706 RelinquishMagickResource(MapResource,blob_info->length);
709 DestroySemaphoreInfo(&blob_info->semaphore);
710 blob_info->signature=(~MagickCoreSignature);
711 image->blob=(
BlobInfo *) RelinquishMagickMemory(blob_info);
736 MagickExport
unsigned char *DetachBlob(
BlobInfo *blob_info)
741 assert(blob_info != (
BlobInfo *) NULL);
742 if (IsEventLogging() != MagickFalse)
743 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
744 if (blob_info->mapped != MagickFalse)
746 (void) UnmapBlob(blob_info->data,blob_info->length);
747 blob_info->data=NULL;
748 RelinquishMagickResource(MapResource,blob_info->length);
750 blob_info->mapped=MagickFalse;
753 blob_info->eof=MagickFalse;
755 blob_info->exempt=MagickFalse;
756 blob_info->type=UndefinedStream;
757 blob_info->file_info.file=(FILE *) NULL;
758 data=blob_info->data;
759 blob_info->data=(
unsigned char *) NULL;
760 blob_info->stream=(StreamHandler) NULL;
788 MagickPrivate
void DisassociateBlob(
Image *image)
791 *magick_restrict blob_info,
797 assert(image != (
Image *) NULL);
798 assert(image->signature == MagickCoreSignature);
799 assert(image->blob != (
BlobInfo *) NULL);
800 assert(image->blob->signature == MagickCoreSignature);
801 if (IsEventLogging() != MagickFalse)
802 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
803 blob_info=image->blob;
805 LockSemaphoreInfo(blob_info->semaphore);
806 assert(blob_info->reference_count >= 0);
807 if (blob_info->reference_count > 1)
809 UnlockSemaphoreInfo(blob_info->semaphore);
810 if (clone == MagickFalse)
812 clone_info=CloneBlobInfo(blob_info);
814 image->blob=clone_info;
842 MagickExport MagickBooleanType DiscardBlobBytes(
Image *image,
843 const MagickSizeType length)
855 buffer[MagickMinBufferExtent >> 1];
857 assert(image != (
Image *) NULL);
858 assert(image->signature == MagickCoreSignature);
859 if (length != (MagickSizeType) ((MagickOffsetType) length))
862 for (i=0; i < (MagickOffsetType) length; i+=count)
864 quantum=(size_t) MagickMin(length-i,
sizeof(buffer));
865 (void) ReadBlobStream(image,quantum,buffer,&count);
873 return(i < (MagickOffsetType) length ? MagickFalse : MagickTrue);
900 MagickExport
void DuplicateBlob(
Image *image,
const Image *duplicate)
902 assert(image != (
Image *) NULL);
903 assert(image->signature == MagickCoreSignature);
904 assert(duplicate != (
Image *) NULL);
905 assert(duplicate->signature == MagickCoreSignature);
906 if (IsEventLogging() != MagickFalse)
907 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
909 image->blob=ReferenceBlob(duplicate->blob);
935 MagickExport
int EOFBlob(
const Image *image)
938 *magick_restrict blob_info;
940 assert(image != (
Image *) NULL);
941 assert(image->signature == MagickCoreSignature);
942 assert(image->blob != (
BlobInfo *) NULL);
943 assert(image->blob->type != UndefinedStream);
944 if (IsEventLogging() != MagickFalse)
945 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
946 blob_info=image->blob;
947 switch (blob_info->type)
949 case UndefinedStream:
955 blob_info->eof=feof(blob_info->file_info.file) != 0 ? MagickTrue :
961 #if defined(MAGICKCORE_ZLIB_DELEGATE)
962 blob_info->eof=gzeof(blob_info->file_info.gzfile) != 0 ? MagickTrue :
969 #if defined(MAGICKCORE_BZLIB_DELEGATE)
974 (void) BZ2_bzerror(blob_info->file_info.bzfile,&status);
975 blob_info->eof=status == BZ_UNEXPECTED_EOF ? MagickTrue : MagickFalse;
981 blob_info->eof=MagickFalse;
987 return((
int) blob_info->eof);
1013 MagickExport
int ErrorBlob(
const Image *image)
1016 *magick_restrict blob_info;
1018 assert(image != (
Image *) NULL);
1019 assert(image->signature == MagickCoreSignature);
1020 assert(image->blob != (
BlobInfo *) NULL);
1021 assert(image->blob->type != UndefinedStream);
1022 if (IsEventLogging() != MagickFalse)
1023 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
1024 blob_info=image->blob;
1025 switch (blob_info->type)
1027 case UndefinedStream:
1028 case StandardStream:
1033 blob_info->error=ferror(blob_info->file_info.file);
1038 #if defined(MAGICKCORE_ZLIB_DELEGATE)
1039 (void) gzerror(blob_info->file_info.gzfile,&blob_info->error);
1045 #if defined(MAGICKCORE_BZLIB_DELEGATE)
1046 (void) BZ2_bzerror(blob_info->file_info.bzfile,&blob_info->error);
1058 return(blob_info->error);
1096 MagickExport
unsigned char *FileToBlob(
const char *filename,
const size_t extent,
1123 assert(filename != (
const char *) NULL);
1125 assert(exception->signature == MagickCoreSignature);
1126 if (IsEventLogging() != MagickFalse)
1127 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",filename);
1129 status=IsRightsAuthorized(PathPolicyDomain,ReadPolicyRights,filename);
1130 if (status == MagickFalse)
1133 (void) ThrowMagickException(exception,GetMagickModule(),PolicyError,
1134 "NotAuthorized",
"`%s'",filename);
1138 if (LocaleCompare(filename,
"-") != 0)
1140 status=GetPathAttributes(filename,&attributes);
1141 if ((status == MagickFalse) || (S_ISDIR(attributes.st_mode) != 0))
1143 ThrowFileException(exception,BlobError,
"UnableToReadBlob",filename);
1146 file=open_utf8(filename,O_RDONLY | O_BINARY,0);
1150 ThrowFileException(exception,BlobError,
"UnableToOpenFile",filename);
1151 return((
unsigned char *) NULL);
1153 offset=(MagickOffsetType) lseek(file,0,SEEK_END);
1155 if ((file == fileno(stdin)) || (offset < 0) ||
1156 (offset != (MagickOffsetType) ((ssize_t) offset)))
1167 offset=(MagickOffsetType) lseek(file,0,SEEK_SET);
1168 quantum=(size_t) MagickMaxBufferExtent;
1169 if ((fstat(file,&file_stats) == 0) && (file_stats.st_size > 0))
1170 quantum=(
size_t) MagickMin(file_stats.st_size,MagickMaxBufferExtent);
1171 blob=(
unsigned char *) AcquireQuantumMemory(quantum,
sizeof(*blob));
1172 for (i=0; blob != (
unsigned char *) NULL; i+=count)
1174 count=read(file,blob+i,quantum);
1181 if (~((
size_t) i) < (count+quantum+1))
1183 blob=(
unsigned char *) RelinquishMagickMemory(blob);
1186 blob=(
unsigned char *) ResizeQuantumMemory(blob,i+count+quantum+1,
1188 if ((
size_t) (i+count) >= extent)
1191 if (LocaleCompare(filename,
"-") != 0)
1193 if (blob == (
unsigned char *) NULL)
1195 (void) ThrowMagickException(exception,GetMagickModule(),
1196 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",filename);
1197 return((
unsigned char *) NULL);
1201 blob=(
unsigned char *) RelinquishMagickMemory(blob);
1202 ThrowFileException(exception,BlobError,
"UnableToReadBlob",filename);
1203 return((
unsigned char *) NULL);
1205 *length=(size_t) MagickMin(i+count,extent);
1209 *length=(size_t) MagickMin(offset,(MagickOffsetType)
1210 MagickMin(extent,(
size_t) MAGICK_SSIZE_MAX));
1211 blob=(
unsigned char *) NULL;
1212 if (~(*length) >= (MagickPathExtent-1))
1213 blob=(
unsigned char *) AcquireQuantumMemory(*length+MagickPathExtent,
1215 if (blob == (
unsigned char *) NULL)
1218 (void) ThrowMagickException(exception,GetMagickModule(),
1219 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",filename);
1220 return((
unsigned char *) NULL);
1222 map=MapBlob(file,ReadMode,0,*length);
1223 if (map != (
unsigned char *) NULL)
1225 (void) memcpy(blob,map,*length);
1226 (void) UnmapBlob(map,*length);
1230 (void) lseek(file,0,SEEK_SET);
1231 for (i=0; i < *length; i+=count)
1233 count=read(file,blob+i,(
size_t) MagickMin(*length-i,(
size_t)
1245 blob=(
unsigned char *) RelinquishMagickMemory(blob);
1246 ThrowFileException(exception,BlobError,
"UnableToReadBlob",filename);
1247 return((
unsigned char *) NULL);
1251 if (LocaleCompare(filename,
"-") != 0)
1255 blob=(
unsigned char *) RelinquishMagickMemory(blob);
1256 ThrowFileException(exception,BlobError,
"UnableToReadBlob",filename);
1286 static inline ssize_t WriteBlobStream(
Image *image,
const size_t length,
1287 const unsigned char *magick_restrict data)
1290 *magick_restrict blob_info;
1298 assert(image->blob != (
BlobInfo *) NULL);
1299 assert(image->blob->type != UndefinedStream);
1300 assert(data != (
void *) NULL);
1301 blob_info=image->blob;
1302 if (blob_info->type != BlobStream)
1303 return(WriteBlob(image,length,data));
1304 extent=(MagickSizeType) (blob_info->offset+(MagickOffsetType) length);
1305 if (extent >= blob_info->extent)
1307 extent=blob_info->extent+blob_info->quantum+length;
1308 blob_info->quantum<<=1;
1309 if (SetBlobExtent(image,extent) == MagickFalse)
1312 q=blob_info->data+blob_info->offset;
1313 (void) memcpy(q,data,length);
1314 blob_info->offset+=length;
1315 if (blob_info->offset >= (MagickOffsetType) blob_info->length)
1316 blob_info->length=(
size_t) blob_info->offset;
1317 return((ssize_t) length);
1320 MagickExport MagickBooleanType FileToImage(
Image *image,
const char *filename)
1341 assert(image != (
const Image *) NULL);
1342 assert(image->signature == MagickCoreSignature);
1343 assert(filename != (
const char *) NULL);
1344 if (IsEventLogging() != MagickFalse)
1345 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",filename);
1346 status=IsRightsAuthorized(PathPolicyDomain,WritePolicyRights,filename);
1347 if (status == MagickFalse)
1350 (void) ThrowMagickException(&image->exception,GetMagickModule(),
1351 PolicyError,
"NotAuthorized",
"`%s'",filename);
1352 return(MagickFalse);
1355 if (LocaleCompare(filename,
"-") != 0)
1356 file=open_utf8(filename,O_RDONLY | O_BINARY,0);
1359 ThrowFileException(&image->exception,BlobError,
"UnableToOpenBlob",
1361 return(MagickFalse);
1363 quantum=(size_t) MagickMaxBufferExtent;
1364 if ((fstat(file,&file_stats) == 0) && (file_stats.st_size > 0))
1365 quantum=(size_t) MagickMin(file_stats.st_size,MagickMaxBufferExtent);
1366 blob=(
unsigned char *) AcquireQuantumMemory(quantum,
sizeof(*blob));
1367 if (blob == (
unsigned char *) NULL)
1370 ThrowFileException(&image->exception,ResourceLimitError,
1371 "MemoryAllocationFailed",filename);
1372 return(MagickFalse);
1376 count=read(file,blob,quantum);
1383 length=(size_t) count;
1384 count=WriteBlobStream(image,length,blob);
1385 if (count != (ssize_t) length)
1387 ThrowFileException(&image->exception,BlobError,
"UnableToWriteBlob",
1394 ThrowFileException(&image->exception,BlobError,
"UnableToWriteBlob",
1396 blob=(
unsigned char *) RelinquishMagickMemory(blob);
1423 MagickExport MagickBooleanType GetBlobError(
const Image *image)
1425 assert(image != (
const Image *) NULL);
1426 assert(image->signature == MagickCoreSignature);
1427 if (IsEventLogging() != MagickFalse)
1428 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1429 if ((image->blob->status != MagickFalse) && (image->blob->error_number != 0))
1430 errno=image->blob->error_number;
1431 return(image->blob->status);
1456 MagickExport FILE *GetBlobFileHandle(
const Image *image)
1458 assert(image != (
const Image *) NULL);
1459 assert(image->signature == MagickCoreSignature);
1460 return(image->blob->file_info.file);
1485 MagickExport
void GetBlobInfo(
BlobInfo *blob_info)
1487 assert(blob_info != (
BlobInfo *) NULL);
1488 (void) memset(blob_info,0,
sizeof(*blob_info));
1489 blob_info->type=UndefinedStream;
1490 blob_info->quantum=(size_t) MagickMaxBlobExtent;
1491 blob_info->properties.st_mtime=GetMagickTime();
1492 blob_info->properties.st_ctime=blob_info->properties.st_mtime;
1493 blob_info->debug=GetLogEventMask() & BlobEvent ? MagickTrue : MagickFalse;
1494 blob_info->reference_count=1;
1495 blob_info->semaphore=AllocateSemaphoreInfo();
1496 blob_info->signature=MagickCoreSignature;
1521 MagickExport
const struct stat *GetBlobProperties(
const Image *image)
1523 assert(image != (
Image *) NULL);
1524 assert(image->signature == MagickCoreSignature);
1525 if (IsEventLogging() != MagickFalse)
1526 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1527 return(&image->blob->properties);
1553 MagickExport MagickSizeType GetBlobSize(
const Image *image)
1556 *magick_restrict blob_info;
1561 assert(image != (
Image *) NULL);
1562 assert(image->signature == MagickCoreSignature);
1563 assert(image->blob != (
BlobInfo *) NULL);
1564 if (IsEventLogging() != MagickFalse)
1565 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1566 blob_info=image->blob;
1568 switch (blob_info->type)
1570 case UndefinedStream:
1571 case StandardStream:
1573 extent=blob_info->size;
1581 extent=(MagickSizeType) blob_info->properties.st_size;
1583 extent=blob_info->size;
1584 file_descriptor=fileno(blob_info->file_info.file);
1585 if (file_descriptor == -1)
1587 if (fstat(file_descriptor,&blob_info->properties) == 0)
1588 extent=(MagickSizeType) blob_info->properties.st_size;
1593 extent=blob_info->size;
1602 status=GetPathAttributes(image->filename,&blob_info->properties);
1603 if (status != MagickFalse)
1604 extent=(MagickSizeType) blob_info->properties.st_size;
1611 extent=(MagickSizeType) blob_info->length;
1640 MagickExport
unsigned char *GetBlobStreamData(
const Image *image)
1642 assert(image != (
const Image *) NULL);
1643 assert(image->signature == MagickCoreSignature);
1644 return(image->blob->data);
1669 MagickExport StreamHandler GetBlobStreamHandler(
const Image *image)
1671 assert(image != (
const Image *) NULL);
1672 assert(image->signature == MagickCoreSignature);
1673 if (IsEventLogging() != MagickFalse)
1674 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1675 return(image->blob->stream);
1711 MagickExport
unsigned char *ImageToBlob(
const ImageInfo *image_info,
1726 assert(image_info != (
const ImageInfo *) NULL);
1727 assert(image_info->signature == MagickCoreSignature);
1728 assert(image != (
Image *) NULL);
1729 assert(image->signature == MagickCoreSignature);
1731 assert(exception->signature == MagickCoreSignature);
1732 if (IsEventLogging() != MagickFalse)
1733 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",
1734 image_info->filename);
1736 blob=(
unsigned char *) NULL;
1737 blob_info=CloneImageInfo(image_info);
1738 blob_info->adjoin=MagickFalse;
1739 (void) SetImageInfo(blob_info,1,exception);
1740 if (*blob_info->magick !=
'\0')
1741 (void) CopyMagickString(image->magick,blob_info->magick,MagickPathExtent);
1742 magick_info=GetMagickInfo(image->magick,exception);
1743 if (magick_info == (
const MagickInfo *) NULL)
1745 (void) ThrowMagickException(exception,GetMagickModule(),
1746 MissingDelegateError,
"NoDecodeDelegateForThisImageFormat",
"`%s'",
1748 blob_info=DestroyImageInfo(blob_info);
1751 (void) CopyMagickString(blob_info->magick,image->magick,MagickPathExtent);
1752 if (GetMagickBlobSupport(magick_info) != MagickFalse)
1757 blob_info->length=0;
1758 blob_info->blob=AcquireQuantumMemory(MagickMaxBlobExtent,
1759 sizeof(
unsigned char));
1760 if (blob_info->blob == NULL)
1761 (void) ThrowMagickException(exception,GetMagickModule(),
1762 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",image->filename);
1765 (void) CloseBlob(image);
1766 image->blob->exempt=MagickTrue;
1767 *image->filename=
'\0';
1768 status=WriteImage(blob_info,image);
1769 InheritException(exception,&image->exception);
1770 *length=image->blob->length;
1771 blob=DetachBlob(image->blob);
1772 if (blob != (
void *) NULL)
1774 if (status == MagickFalse)
1775 blob=RelinquishMagickMemory(blob);
1777 blob=ResizeQuantumMemory(blob,*length+1,
sizeof(
unsigned char));
1784 unique[MagickPathExtent];
1792 file=AcquireUniqueFileResource(unique);
1795 ThrowFileException(exception,BlobError,
"UnableToWriteBlob",
1796 image_info->filename);
1800 blob_info->file=fdopen(file,
"wb");
1801 if (blob_info->file != (FILE *) NULL)
1803 (void) FormatLocaleString(image->filename,MagickPathExtent,
1804 "%s:%s",image->magick,unique);
1805 status=WriteImage(blob_info,image);
1806 (void) CloseBlob(image);
1807 (void) fclose(blob_info->file);
1808 if (status == MagickFalse)
1809 InheritException(exception,&image->exception);
1811 blob=FileToBlob(unique,~0UL,length,exception);
1813 (void) RelinquishUniqueFileResource(unique);
1816 blob_info=DestroyImageInfo(blob_info);
1848 MagickExport MagickBooleanType ImageToFile(
Image *image,
char *filename,
1873 assert(image != (
Image *) NULL);
1874 assert(image->signature == MagickCoreSignature);
1875 assert(image->blob != (
BlobInfo *) NULL);
1876 assert(image->blob->type != UndefinedStream);
1877 assert(filename != (
const char *) NULL);
1878 if (IsEventLogging() != MagickFalse)
1879 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",filename);
1880 if (*filename ==
'\0')
1881 file=AcquireUniqueFileResource(filename);
1883 if (LocaleCompare(filename,
"-") == 0)
1884 file=fileno(stdout);
1886 file=open_utf8(filename,O_RDWR | O_CREAT | O_EXCL | O_BINARY,S_MODE);
1889 ThrowFileException(exception,BlobError,
"UnableToWriteBlob",filename);
1890 return(MagickFalse);
1892 quantum=(size_t) MagickMaxBufferExtent;
1893 if ((fstat(file,&file_stats) == 0) && (file_stats.st_size > 0))
1894 quantum=(size_t) MagickMin(file_stats.st_size,MagickMaxBufferExtent);
1895 buffer=(
unsigned char *) AcquireQuantumMemory(quantum,
sizeof(*buffer));
1896 if (buffer == (
unsigned char *) NULL)
1899 (void) ThrowMagickException(exception,GetMagickModule(),
1900 ResourceLimitError,
"MemoryAllocationError",
"`%s'",filename);
1901 return(MagickFalse);
1904 p=(
const unsigned char *) ReadBlobStream(image,quantum,buffer,&count);
1905 for (i=0; count > 0; )
1907 length=(size_t) count;
1908 for (i=0; i < length; i+=count)
1910 count=write(file,p+i,(
size_t) (length-i));
1920 p=(
const unsigned char *) ReadBlobStream(image,quantum,buffer,&count);
1922 if (LocaleCompare(filename,
"-") != 0)
1924 buffer=(
unsigned char *) RelinquishMagickMemory(buffer);
1925 if ((file == -1) || (i < length))
1929 ThrowFileException(exception,BlobError,
"UnableToWriteBlob",filename);
1930 return(MagickFalse);
1970 MagickExport
unsigned char *ImagesToBlob(
const ImageInfo *image_info,
1985 assert(image_info != (
const ImageInfo *) NULL);
1986 assert(image_info->signature == MagickCoreSignature);
1987 assert(images != (
Image *) NULL);
1988 assert(images->signature == MagickCoreSignature);
1990 if (IsEventLogging() != MagickFalse)
1991 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",
1992 image_info->filename);
1994 blob=(
unsigned char *) NULL;
1995 blob_info=CloneImageInfo(image_info);
1996 (void) SetImageInfo(blob_info,(
unsigned int) GetImageListLength(images),
1998 if (*blob_info->magick !=
'\0')
1999 (void) CopyMagickString(images->magick,blob_info->magick,MagickPathExtent);
2000 magick_info=GetMagickInfo(images->magick,exception);
2001 if (magick_info == (
const MagickInfo *) NULL)
2003 (void) ThrowMagickException(exception,GetMagickModule(),
2004 MissingDelegateError,
"NoDecodeDelegateForThisImageFormat",
"`%s'",
2006 blob_info=DestroyImageInfo(blob_info);
2009 if (GetMagickAdjoin(magick_info) == MagickFalse)
2011 blob_info=DestroyImageInfo(blob_info);
2012 return(ImageToBlob(image_info,images,length,exception));
2014 (void) CopyMagickString(blob_info->magick,images->magick,MagickPathExtent);
2015 if (GetMagickBlobSupport(magick_info) != MagickFalse)
2020 blob_info->length=0;
2021 blob_info->blob=(
void *) AcquireQuantumMemory(MagickMaxBlobExtent,
2022 sizeof(
unsigned char));
2023 if (blob_info->blob == (
void *) NULL)
2024 (
void) ThrowMagickException(exception,GetMagickModule(),
2025 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",images->filename);
2028 (void) CloseBlob(images);
2029 images->blob->exempt=MagickTrue;
2030 *images->filename=
'\0';
2031 status=WriteImages(blob_info,images,images->filename,exception);
2032 *length=images->blob->length;
2033 blob=DetachBlob(images->blob);
2034 if (blob != (
void *) NULL)
2036 if (status == MagickFalse)
2037 blob=RelinquishMagickMemory(blob);
2039 blob=ResizeQuantumMemory(blob,*length+1,
sizeof(
unsigned char));
2046 filename[MagickPathExtent],
2047 unique[MagickPathExtent];
2055 file=AcquireUniqueFileResource(unique);
2058 ThrowFileException(exception,FileOpenError,
"UnableToWriteBlob",
2059 image_info->filename);
2063 blob_info->file=fdopen(file,
"wb");
2064 if (blob_info->file != (FILE *) NULL)
2066 (void) FormatLocaleString(filename,MagickPathExtent,
"%s:%s",
2067 images->magick,unique);
2068 status=WriteImages(blob_info,images,filename,exception);
2069 (void) CloseBlob(images);
2070 (void) fclose(blob_info->file);
2071 if (status == MagickFalse)
2072 InheritException(exception,&images->exception);
2074 blob=FileToBlob(unique,~0UL,length,exception);
2076 (void) RelinquishUniqueFileResource(unique);
2079 blob_info=DestroyImageInfo(blob_info);
2115 MagickExport MagickBooleanType InjectImageBlob(
const ImageInfo *image_info,
2119 filename[MagickPathExtent];
2148 assert(image_info != (
ImageInfo *) NULL);
2149 assert(image_info->signature == MagickCoreSignature);
2150 assert(image != (
Image *) NULL);
2151 assert(image->signature == MagickCoreSignature);
2152 assert(inject_image != (
Image *) NULL);
2153 assert(inject_image->signature == MagickCoreSignature);
2155 if (IsEventLogging() != MagickFalse)
2156 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2157 unique_file=(FILE *) NULL;
2158 file=AcquireUniqueFileResource(filename);
2160 unique_file=fdopen(file,
"wb");
2161 if ((file == -1) || (unique_file == (FILE *) NULL))
2163 (void) CopyMagickString(image->filename,filename,MagickPathExtent);
2164 ThrowFileException(exception,FileOpenError,
"UnableToCreateTemporaryFile",
2166 return(MagickFalse);
2168 byte_image=CloneImage(inject_image,0,0,MagickFalse,exception);
2169 if (byte_image == (
Image *) NULL)
2171 (void) fclose(unique_file);
2172 (void) RelinquishUniqueFileResource(filename);
2173 return(MagickFalse);
2175 (void) FormatLocaleString(byte_image->filename,MagickPathExtent,
"%s:%s",
2177 DestroyBlob(byte_image);
2178 byte_image->blob=CloneBlobInfo((
BlobInfo *) NULL);
2179 write_info=CloneImageInfo(image_info);
2180 SetImageInfoFile(write_info,unique_file);
2181 status=WriteImage(write_info,byte_image);
2182 write_info=DestroyImageInfo(write_info);
2183 byte_image=DestroyImage(byte_image);
2184 (void) fclose(unique_file);
2185 if (status == MagickFalse)
2187 (void) RelinquishUniqueFileResource(filename);
2188 return(MagickFalse);
2193 file=open_utf8(filename,O_RDONLY | O_BINARY,0);
2196 (void) RelinquishUniqueFileResource(filename);
2197 ThrowFileException(exception,FileOpenError,
"UnableToOpenFile",
2198 image_info->filename);
2199 return(MagickFalse);
2201 quantum=(size_t) MagickMaxBufferExtent;
2202 if ((fstat(file,&file_stats) == 0) && (file_stats.st_size > 0))
2203 quantum=(size_t) MagickMin(file_stats.st_size,MagickMaxBufferExtent);
2204 buffer=(
unsigned char *) AcquireQuantumMemory(quantum,
sizeof(*buffer));
2205 if (buffer == (
unsigned char *) NULL)
2207 (void) RelinquishUniqueFileResource(filename);
2209 ThrowBinaryException(ResourceLimitError,
"MemoryAllocationFailed",
2214 ssize_t count = read(file,buffer,quantum);
2221 status=WriteBlobStream(image,(
size_t) count,buffer) == count ? MagickTrue :
2226 ThrowFileException(exception,FileOpenError,
"UnableToWriteBlob",filename);
2227 (void) RelinquishUniqueFileResource(filename);
2228 buffer=(
unsigned char *) RelinquishMagickMemory(buffer);
2254 MagickExport MagickBooleanType IsBlobExempt(
const Image *image)
2256 assert(image != (
const Image *) NULL);
2257 assert(image->signature == MagickCoreSignature);
2258 if (IsEventLogging() != MagickFalse)
2259 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2260 return(image->blob->exempt);
2285 MagickExport MagickBooleanType IsBlobSeekable(
const Image *image)
2288 *magick_restrict blob_info;
2290 assert(image != (
const Image *) NULL);
2291 assert(image->signature == MagickCoreSignature);
2292 if (IsEventLogging() != MagickFalse)
2293 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2294 blob_info=image->blob;
2295 switch (blob_info->type)
2304 if (blob_info->file_info.file == (FILE *) NULL)
2305 return(MagickFalse);
2306 status=fseek(blob_info->file_info.file,0,SEEK_CUR);
2307 return(status == -1 ? MagickFalse : MagickTrue);
2311 #if defined(MAGICKCORE_ZLIB_DELEGATE)
2315 if (blob_info->file_info.gzfile == (gzFile) NULL)
2316 return(MagickFalse);
2317 offset=gzseek(blob_info->file_info.gzfile,0,SEEK_CUR);
2318 return(offset < 0 ? MagickFalse : MagickTrue);
2323 case UndefinedStream:
2327 case StandardStream:
2332 return(MagickFalse);
2357 MagickExport MagickBooleanType IsBlobTemporary(
const Image *image)
2359 assert(image != (
const Image *) NULL);
2360 assert(image->signature == MagickCoreSignature);
2361 if (IsEventLogging() != MagickFalse)
2362 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2363 return(image->blob->temporary);
2395 MagickExport
unsigned char *MapBlob(
int file,
const MapMode mode,
2396 const MagickOffsetType offset,
const size_t length)
2398 #if defined(MAGICKCORE_HAVE_MMAP)
2411 #if defined(MAP_ANONYMOUS)
2412 flags|=MAP_ANONYMOUS;
2414 return((
unsigned char *) NULL);
2421 protection=PROT_READ;
2427 protection=PROT_WRITE;
2433 protection=PROT_READ | PROT_WRITE;
2438 #if !defined(MAGICKCORE_HAVE_HUGEPAGES) || !defined(MAP_HUGETLB)
2439 map=(
unsigned char *) mmap((
char *) NULL,length,protection,flags,file,offset);
2441 map=(
unsigned char *) mmap((
char *) NULL,length,protection,flags |
2442 MAP_HUGETLB,file,offset);
2443 if (map == (
unsigned char *) MAP_FAILED)
2444 map=(
unsigned char *) mmap((
char *) NULL,length,protection,flags,file,
2447 if (map == (
unsigned char *) MAP_FAILED)
2448 return((
unsigned char *) NULL);
2455 return((
unsigned char *) NULL);
2484 MagickExport
void MSBOrderLong(
unsigned char *buffer,
const size_t length)
2493 assert(buffer != (
unsigned char *) NULL);
2500 *buffer++=(
unsigned char) c;
2504 *buffer++=(
unsigned char) c;
2534 MagickExport
void MSBOrderShort(
unsigned char *p,
const size_t length)
2542 assert(p != (
unsigned char *) NULL);
2549 *p++=(
unsigned char) c;
2585 static inline MagickBooleanType SetStreamBuffering(
const ImageInfo *image_info,
2597 size=MagickMinBufferExtent;
2598 option=GetImageOption(image_info,
"stream:buffer-size");
2599 if (option != (
const char *) NULL)
2600 size=StringToUnsignedLong(option);
2601 status=setvbuf(image->blob->file_info.file,(
char *) NULL,size == 0 ?
2602 _IONBF : _IOFBF,size);
2603 return(status == 0 ? MagickTrue : MagickFalse);
2606 #if defined(MAGICKCORE_ZLIB_DELEGATE)
2607 static inline gzFile gzopen_utf8(
const char *path,
const char *mode)
2609 #if !defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__CYGWIN__)
2610 return(gzopen(path,mode));
2618 path_wide=create_wchar_path(path);
2619 if (path_wide == (
wchar_t *) NULL)
2620 return((gzFile) NULL);
2621 file=gzopen_w(path_wide,mode);
2622 path_wide=(
wchar_t *) RelinquishMagickMemory(path_wide);
2628 MagickExport MagickBooleanType OpenBlob(
const ImageInfo *image_info,
2632 *magick_restrict blob_info;
2635 extension[MagickPathExtent],
2636 filename[MagickPathExtent];
2647 assert(image_info != (
ImageInfo *) NULL);
2648 assert(image_info->signature == MagickCoreSignature);
2649 assert(image != (
Image *) NULL);
2650 assert(image->signature == MagickCoreSignature);
2651 if (IsEventLogging() != MagickFalse)
2652 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",
2653 image_info->filename);
2654 blob_info=image->blob;
2655 if (image_info->blob != (
void *) NULL)
2657 if (image_info->stream != (StreamHandler) NULL)
2658 blob_info->stream=(StreamHandler) image_info->stream;
2659 AttachBlob(blob_info,image_info->blob,image_info->length);
2662 (void) DetachBlob(blob_info);
2663 blob_info->mode=mode;
2666 default: type=
"r";
break;
2667 case ReadBlobMode: type=
"r";
break;
2668 case ReadBinaryBlobMode: type=
"rb";
break;
2669 case WriteBlobMode: type=
"w";
break;
2670 case WriteBinaryBlobMode: type=
"w+b";
break;
2671 case AppendBlobMode: type=
"a";
break;
2672 case AppendBinaryBlobMode: type=
"a+b";
break;
2675 blob_info->synchronize=image_info->synchronize;
2676 if (image_info->stream != (StreamHandler) NULL)
2678 blob_info->stream=(StreamHandler) image_info->stream;
2681 blob_info->type=FifoStream;
2689 (void) CopyMagickString(filename,image->filename,MagickPathExtent);
2690 rights=ReadPolicyRights;
2692 rights=WritePolicyRights;
2693 if (IsRightsAuthorized(PathPolicyDomain,rights,filename) == MagickFalse)
2696 (void) ThrowMagickException(exception,GetMagickModule(),PolicyError,
2697 "NotAuthorized",
"`%s'",filename);
2698 return(MagickFalse);
2700 if ((LocaleCompare(filename,
"-") == 0) ||
2701 ((*filename ==
'\0') && (image_info->file == (FILE *) NULL)))
2703 blob_info->file_info.file=(*type ==
'r') ? stdin : stdout;
2704 #if defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__OS2__)
2705 if (strchr(type,
'b') != (
char *) NULL)
2706 (void) setmode(fileno(blob_info->file_info.file),_O_BINARY);
2708 blob_info->type=StandardStream;
2709 blob_info->exempt=MagickTrue;
2710 return(SetStreamBuffering(image_info,image));
2712 if ((LocaleNCompare(filename,
"fd:",3) == 0) &&
2713 (IsGeometry(filename+3) != MagickFalse))
2716 fileMode[MagickPathExtent];
2720 blob_info->file_info.file=fdopen(StringToLong(filename+3),fileMode);
2721 if (blob_info->file_info.file == (FILE *) NULL)
2723 ThrowFileException(exception,BlobError,
"UnableToOpenBlob",filename);
2724 return(MagickFalse);
2726 #if defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__OS2__)
2727 if (strchr(type,
'b') != (
char *) NULL)
2728 (void) setmode(fileno(blob_info->file_info.file),_O_BINARY);
2730 blob_info->type=FileStream;
2731 blob_info->exempt=MagickTrue;
2732 return(SetStreamBuffering(image_info,image));
2734 #if defined(MAGICKCORE_HAVE_POPEN) && defined(MAGICKCORE_PIPES_SUPPORT)
2735 if (*filename ==
'|')
2738 fileMode[MagickPathExtent],
2744 #if defined(SIGPIPE)
2746 (void) signal(SIGPIPE,SIG_IGN);
2750 sanitize_command=SanitizeString(filename+1);
2751 blob_info->file_info.file=(FILE *) popen_utf8(sanitize_command,
2753 sanitize_command=DestroyString(sanitize_command);
2754 if (blob_info->file_info.file == (FILE *) NULL)
2756 ThrowFileException(exception,BlobError,
"UnableToOpenBlob",filename);
2757 return(MagickFalse);
2759 blob_info->type=PipeStream;
2760 blob_info->exempt=MagickTrue;
2761 return(SetStreamBuffering(image_info,image));
2764 status=GetPathAttributes(filename,&blob_info->properties);
2765 #if defined(S_ISFIFO)
2766 if ((status != MagickFalse) && S_ISFIFO(blob_info->properties.st_mode))
2768 blob_info->file_info.file=(FILE *) fopen_utf8(filename,type);
2769 if (blob_info->file_info.file == (FILE *) NULL)
2771 ThrowFileException(exception,BlobError,
"UnableToOpenBlob",filename);
2772 return(MagickFalse);
2774 blob_info->type=FileStream;
2775 blob_info->exempt=MagickTrue;
2776 return(SetStreamBuffering(image_info,image));
2779 GetPathComponent(image->filename,ExtensionPath,extension);
2782 (void) CopyMagickString(filename,image->filename,MagickPathExtent);
2783 if ((image_info->adjoin == MagickFalse) ||
2784 (strchr(filename,
'%') != (
char *) NULL))
2789 (void) InterpretImageFilename(image_info,image,image->filename,(
int)
2790 image->scene,filename);
2791 if ((LocaleCompare(filename,image->filename) == 0) &&
2792 ((GetPreviousImageInList(image) != (
Image *) NULL) ||
2793 (GetNextImageInList(image) != (
Image *) NULL)))
2796 path[MagickPathExtent];
2798 GetPathComponent(image->filename,RootPath,path);
2799 if (*extension ==
'\0')
2800 (void) FormatLocaleString(filename,MagickPathExtent,
"%s-%.20g",
2801 path,(
double) image->scene);
2803 (
void) FormatLocaleString(filename,MagickPathExtent,
2804 "%s-%.20g.%s",path,(
double) image->scene,extension);
2806 (void) CopyMagickString(image->filename,filename,MagickPathExtent);
2807 #if defined(macintosh)
2808 SetApplicationType(filename,image_info->magick,
'8BIM');
2812 if (image_info->file != (FILE *) NULL)
2814 blob_info->file_info.file=image_info->file;
2815 blob_info->type=FileStream;
2816 blob_info->exempt=MagickTrue;
2821 blob_info->file_info.file=(FILE *) fopen_utf8(filename,type);
2822 if (blob_info->file_info.file != (FILE *) NULL)
2830 blob_info->type=FileStream;
2831 (void) fstat(fileno(blob_info->file_info.file),
2832 &blob_info->properties);
2833 (void) SetStreamBuffering(image_info,image);
2834 (void) memset(magick,0,
sizeof(magick));
2835 count=fread(magick,1,
sizeof(magick),blob_info->file_info.file);
2836 (void) fseek(blob_info->file_info.file,-((off_t) count),SEEK_CUR);
2837 #if defined(MAGICKCORE_POSIX_SUPPORT)
2838 (void) fflush(blob_info->file_info.file);
2840 (void) LogMagickEvent(BlobEvent,GetMagickModule(),
2841 " read %.20g magic header bytes",(double) count);
2842 #if defined(MAGICKCORE_ZLIB_DELEGATE)
2843 if (((
int) magick[0] == 0x1F) && ((
int) magick[1] == 0x8B) &&
2844 ((
int) magick[2] == 0x08))
2847 gzfile = gzopen_utf8(filename,
"rb");
2849 if (gzfile != (gzFile) NULL)
2851 if (blob_info->file_info.file != (FILE *) NULL)
2852 (void) fclose(blob_info->file_info.file);
2853 blob_info->file_info.file=(FILE *) NULL;
2854 blob_info->file_info.gzfile=gzfile;
2855 blob_info->type=ZipStream;
2859 #if defined(MAGICKCORE_BZLIB_DELEGATE)
2860 if (strncmp((
char *) magick,
"BZh",3) == 0)
2863 *bzfile = BZ2_bzopen(filename,
"r");
2865 if (bzfile != (BZFILE *) NULL)
2867 if (blob_info->file_info.file != (FILE *) NULL)
2868 (void) fclose(blob_info->file_info.file);
2869 blob_info->file_info.file=(FILE *) NULL;
2870 blob_info->file_info.bzfile=bzfile;
2871 blob_info->type=BZipStream;
2875 if (blob_info->type == FileStream)
2886 sans_exception=AcquireExceptionInfo();
2887 magick_info=GetMagickInfo(image_info->magick,sans_exception);
2888 sans_exception=DestroyExceptionInfo(sans_exception);
2889 length=(size_t) blob_info->properties.st_size;
2890 if ((magick_info != (
const MagickInfo *) NULL) &&
2891 (GetMagickBlobSupport(magick_info) != MagickFalse) &&
2892 (length > MagickMaxBufferExtent) &&
2893 (AcquireMagickResource(MapResource,length) != MagickFalse))
2898 blob=MapBlob(fileno(blob_info->file_info.file),ReadMode,0,
2900 if (blob == (
void *) NULL)
2901 RelinquishMagickResource(MapResource,length);
2907 if (image_info->file != (FILE *) NULL)
2908 blob_info->exempt=MagickFalse;
2911 (void) fclose(blob_info->file_info.file);
2912 blob_info->file_info.file=(FILE *) NULL;
2914 AttachBlob(blob_info,blob,length);
2915 blob_info->mapped=MagickTrue;
2922 #if defined(MAGICKCORE_ZLIB_DELEGATE)
2923 if ((LocaleCompare(extension,
"Z") == 0) ||
2924 (LocaleCompare(extension,
"gz") == 0) ||
2925 (LocaleCompare(extension,
"wmz") == 0) ||
2926 (LocaleCompare(extension,
"svgz") == 0))
2928 blob_info->file_info.gzfile=gzopen_utf8(filename,
"wb");
2929 if (blob_info->file_info.gzfile != (gzFile) NULL)
2930 blob_info->type=ZipStream;
2934 #if defined(MAGICKCORE_BZLIB_DELEGATE)
2935 if (LocaleCompare(extension,
"bz2") == 0)
2937 if (mode == WriteBinaryBlobMode)
2939 blob_info->file_info.bzfile=BZ2_bzopen(filename,
"w");
2940 if (blob_info->file_info.bzfile != (BZFILE *) NULL)
2941 blob_info->type=BZipStream;
2946 blob_info->file_info.file=(FILE *) fopen_utf8(filename,type);
2947 if (blob_info->file_info.file != (FILE *) NULL)
2949 blob_info->type=FileStream;
2950 (void) SetStreamBuffering(image_info,image);
2953 blob_info->status=MagickFalse;
2954 blob_info->error_number=0;
2955 if (blob_info->type != UndefinedStream)
2956 blob_info->size=GetBlobSize(image);
2959 ThrowFileException(exception,BlobError,
"UnableToOpenBlob",filename);
2960 return(MagickFalse);
2999 #if defined(__cplusplus) || defined(c_plusplus)
3003 static size_t PingStream(
const Image *magick_unused(image),
3004 const void *magick_unused(pixels),
const size_t columns)
3006 magick_unreferenced(image);
3007 magick_unreferenced(pixels);
3012 #if defined(__cplusplus) || defined(c_plusplus)
3016 MagickExport
Image *PingBlob(
const ImageInfo *image_info,
const void *blob,
3032 assert(image_info != (
ImageInfo *) NULL);
3033 assert(image_info->signature == MagickCoreSignature);
3035 if (IsEventLogging() != MagickFalse)
3036 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",
3037 image_info->filename);
3038 if ((blob == (
const void *) NULL) || (length == 0))
3040 (void) ThrowMagickException(exception,GetMagickModule(),BlobError,
3041 "ZeroLengthBlobNotPermitted",
"`%s'",image_info->filename);
3042 return((
Image *) NULL);
3044 ping_info=CloneImageInfo(image_info);
3045 ping_info->blob=(
void *) blob;
3046 ping_info->length=length;
3047 ping_info->ping=MagickTrue;
3048 if (*ping_info->magick ==
'\0')
3049 (void) SetImageInfo(ping_info,0,exception);
3050 magick_info=GetMagickInfo(ping_info->magick,exception);
3051 if (magick_info == (
const MagickInfo *) NULL)
3053 (void) ThrowMagickException(exception,GetMagickModule(),
3054 MissingDelegateError,
"NoDecodeDelegateForThisImageFormat",
"`%s'",
3056 ping_info=DestroyImageInfo(ping_info);
3057 return((
Image *) NULL);
3059 if (GetMagickBlobSupport(magick_info) != MagickFalse)
3062 filename[MagickPathExtent];
3067 (void) CopyMagickString(filename,ping_info->filename,MagickPathExtent);
3068 (void) FormatLocaleString(ping_info->filename,MagickPathExtent,
"%s:%s",
3069 ping_info->magick,filename);
3070 image=ReadStream(ping_info,&PingStream,exception);
3071 if (image != (
Image *) NULL)
3072 (void) DetachBlob(image->blob);
3073 ping_info=DestroyImageInfo(ping_info);
3079 ping_info->blob=(
void *) NULL;
3080 ping_info->length=0;
3081 *ping_info->filename=
'\0';
3082 status=BlobToFile(ping_info->filename,blob,length,exception);
3083 if (status == MagickFalse)
3085 (void) RelinquishUniqueFileResource(ping_info->filename);
3086 ping_info=DestroyImageInfo(ping_info);
3087 return((
Image *) NULL);
3089 clone_info=CloneImageInfo(ping_info);
3090 (void) FormatLocaleString(clone_info->filename,MagickPathExtent,
"%s:%s",
3091 ping_info->magick,ping_info->filename);
3092 image=ReadStream(clone_info,&PingStream,exception);
3093 if (image != (
Image *) NULL)
3101 for (images=GetFirstImageInList(image); images != (
Image *) NULL; )
3103 (void) CopyMagickString(images->filename,image_info->filename,
3105 (void) CopyMagickString(images->magick_filename,image_info->filename,
3107 (void) CopyMagickString(images->magick,magick_info->name,
3109 images=GetNextImageInList(images);
3112 clone_info=DestroyImageInfo(clone_info);
3113 (void) RelinquishUniqueFileResource(ping_info->filename);
3114 ping_info=DestroyImageInfo(ping_info);
3149 MagickExport ssize_t ReadBlob(
Image *image,
const size_t length,
3150 unsigned char *data)
3153 *magick_restrict blob_info;
3164 assert(image != (
Image *) NULL);
3165 assert(image->signature == MagickCoreSignature);
3166 assert(image->blob != (
BlobInfo *) NULL);
3167 assert(image->blob->type != UndefinedStream);
3170 assert(data != (
void *) NULL);
3171 blob_info=image->blob;
3174 switch (blob_info->type)
3176 case UndefinedStream:
3178 case StandardStream:
3186 count=(ssize_t) fread(q,1,length,blob_info->file_info.file);
3191 c=getc(blob_info->file_info.file);
3194 *q++=(
unsigned char) c;
3199 c=getc(blob_info->file_info.file);
3202 *q++=(
unsigned char) c;
3207 c=getc(blob_info->file_info.file);
3210 *q++=(
unsigned char) c;
3215 c=getc(blob_info->file_info.file);
3218 *q++=(
unsigned char) c;
3224 if ((count != (ssize_t) length) &&
3225 (ferror(blob_info->file_info.file) != 0))
3226 ThrowBlobException(blob_info);
3231 #if defined(MAGICKCORE_ZLIB_DELEGATE)
3242 for (i=0; i < (ssize_t) length; i+=count)
3244 count=(ssize_t) gzread(blob_info->file_info.gzfile,q+i,
3245 (
unsigned int) MagickMin(length-i,MagickMaxBufferExtent));
3258 c=gzgetc(blob_info->file_info.gzfile);
3261 *q++=(
unsigned char) c;
3266 c=gzgetc(blob_info->file_info.gzfile);
3269 *q++=(
unsigned char) c;
3274 c=gzgetc(blob_info->file_info.gzfile);
3277 *q++=(
unsigned char) c;
3282 c=gzgetc(blob_info->file_info.gzfile);
3285 *q++=(
unsigned char) c;
3292 (void) gzerror(blob_info->file_info.gzfile,&status);
3293 if ((count != (ssize_t) length) && (status != Z_OK))
3294 ThrowBlobException(blob_info);
3295 if (blob_info->eof == MagickFalse)
3296 blob_info->eof=gzeof(blob_info->file_info.gzfile) != 0 ? MagickTrue :
3303 #if defined(MAGICKCORE_BZLIB_DELEGATE)
3310 for (i=0; i < (ssize_t) length; i+=count)
3312 count=(ssize_t) BZ2_bzread(blob_info->file_info.bzfile,q+i,
3313 (
unsigned int) MagickMin(length-i,MagickMaxBufferExtent));
3323 (void) BZ2_bzerror(blob_info->file_info.bzfile,&status);
3324 if ((count != (ssize_t) length) && (status != BZ_OK))
3325 ThrowBlobException(blob_info);
3336 if (blob_info->offset >= (MagickOffsetType) blob_info->length)
3338 blob_info->eof=MagickTrue;
3341 p=blob_info->data+blob_info->offset;
3342 count=(ssize_t) MagickMin((MagickOffsetType) length,(MagickOffsetType)
3343 blob_info->length-blob_info->offset);
3344 blob_info->offset+=count;
3345 if (count != (ssize_t) length)
3346 blob_info->eof=MagickTrue;
3347 (
void) memcpy(q,p,(
size_t) count);
3376 MagickExport
int ReadBlobByte(
Image *image)
3379 *magick_restrict blob_info;
3384 assert(image != (
Image *) NULL);
3385 assert(image->signature == MagickCoreSignature);
3386 assert(image->blob != (
BlobInfo *) NULL);
3387 assert(image->blob->type != UndefinedStream);
3388 blob_info=image->blob;
3389 switch (blob_info->type)
3391 case StandardStream:
3395 c=getc(blob_info->file_info.file);
3398 if (ferror(blob_info->file_info.file) != 0)
3399 ThrowBlobException(blob_info);
3406 if (blob_info->offset >= (MagickOffsetType) blob_info->length)
3408 blob_info->eof=MagickTrue;
3411 c=(int) (*((
unsigned char *) blob_info->data+blob_info->offset));
3412 blob_info->offset++;
3423 count=ReadBlob(image,1,buffer);
3456 MagickExport
double ReadBlobDouble(
Image *image)
3467 quantum.double_value=0.0;
3468 quantum.unsigned_value=ReadBlobLongLong(image);
3469 return(quantum.double_value);
3495 MagickExport
float ReadBlobFloat(
Image *image)
3506 quantum.float_value=0.0;
3507 quantum.unsigned_value=ReadBlobLong(image);
3508 return(quantum.float_value);
3534 MagickExport
unsigned int ReadBlobLong(
Image *image)
3548 assert(image != (
Image *) NULL);
3549 assert(image->signature == MagickCoreSignature);
3551 p=(
const unsigned char *) ReadBlobStream(image,4,buffer,&count);
3554 if (image->endian == LSBEndian)
3556 value=(
unsigned int) (*p++);
3557 value|=(
unsigned int) (*p++) << 8;
3558 value|=(
unsigned int) (*p++) << 16;
3559 value|=(
unsigned int) (*p++) << 24;
3562 value=(
unsigned int) (*p++) << 24;
3563 value|=(
unsigned int) (*p++) << 16;
3564 value|=(
unsigned int) (*p++) << 8;
3565 value|=(
unsigned int) (*p++);
3592 MagickExport MagickSizeType ReadBlobLongLong(
Image *image)
3606 assert(image != (
Image *) NULL);
3607 assert(image->signature == MagickCoreSignature);
3609 p=(
const unsigned char *) ReadBlobStream(image,8,buffer,&count);
3611 return(MagickULLConstant(0));
3612 if (image->endian == LSBEndian)
3614 value=(MagickSizeType) (*p++);
3615 value|=(MagickSizeType) (*p++) << 8;
3616 value|=(MagickSizeType) (*p++) << 16;
3617 value|=(MagickSizeType) (*p++) << 24;
3618 value|=(MagickSizeType) (*p++) << 32;
3619 value|=(MagickSizeType) (*p++) << 40;
3620 value|=(MagickSizeType) (*p++) << 48;
3621 value|=(MagickSizeType) (*p++) << 56;
3624 value=(MagickSizeType) (*p++) << 56;
3625 value|=(MagickSizeType) (*p++) << 48;
3626 value|=(MagickSizeType) (*p++) << 40;
3627 value|=(MagickSizeType) (*p++) << 32;
3628 value|=(MagickSizeType) (*p++) << 24;
3629 value|=(MagickSizeType) (*p++) << 16;
3630 value|=(MagickSizeType) (*p++) << 8;
3631 value|=(MagickSizeType) (*p++);
3658 MagickExport
unsigned short ReadBlobShort(
Image *image)
3672 assert(image != (
Image *) NULL);
3673 assert(image->signature == MagickCoreSignature);
3675 p=(
const unsigned char *) ReadBlobStream(image,2,buffer,&count);
3677 return((
unsigned short) 0U);
3678 if (image->endian == LSBEndian)
3680 value=(
unsigned short) (*p++);
3681 value|=(
unsigned short) (*p++) << 8;
3684 value=(
unsigned short) ((
unsigned short) (*p++) << 8);
3685 value|=(
unsigned short) (*p++);
3712 MagickExport
unsigned int ReadBlobLSBLong(
Image *image)
3726 assert(image != (
Image *) NULL);
3727 assert(image->signature == MagickCoreSignature);
3729 p=(
const unsigned char *) ReadBlobStream(image,4,buffer,&count);
3732 value=(
unsigned int) (*p++);
3733 value|=(
unsigned int) (*p++) << 8;
3734 value|=(
unsigned int) (*p++) << 16;
3735 value|=(
unsigned int) (*p++) << 24;
3762 MagickExport
signed int ReadBlobLSBSignedLong(
Image *image)
3773 quantum.unsigned_value=ReadBlobLSBLong(image);
3774 return(quantum.signed_value);
3800 MagickExport
unsigned short ReadBlobLSBShort(
Image *image)
3814 assert(image != (
Image *) NULL);
3815 assert(image->signature == MagickCoreSignature);
3817 p=(
const unsigned char *) ReadBlobStream(image,2,buffer,&count);
3819 return((
unsigned short) 0U);
3820 value=(
unsigned short) (*p++);
3821 value|=(
unsigned short) (*p++) << 8;
3848 MagickExport
signed short ReadBlobLSBSignedShort(
Image *image)
3859 quantum.unsigned_value=ReadBlobLSBShort(image);
3860 return(quantum.signed_value);
3886 MagickExport
unsigned int ReadBlobMSBLong(
Image *image)
3900 assert(image != (
Image *) NULL);
3901 assert(image->signature == MagickCoreSignature);
3903 p=(
const unsigned char *) ReadBlobStream(image,4,buffer,&count);
3906 value=(
unsigned int) (*p++) << 24;
3907 value|=(
unsigned int) (*p++) << 16;
3908 value|=(
unsigned int) (*p++) << 8;
3909 value|=(
unsigned int) (*p++);
3936 MagickExport MagickSizeType ReadBlobMSBLongLong(
Image *image)
3950 assert(image != (
Image *) NULL);
3951 assert(image->signature == MagickCoreSignature);
3953 p=(
const unsigned char *) ReadBlobStream(image,8,buffer,&count);
3955 return(MagickULLConstant(0));
3956 value=(MagickSizeType) (*p++) << 56;
3957 value|=(MagickSizeType) (*p++) << 48;
3958 value|=(MagickSizeType) (*p++) << 40;
3959 value|=(MagickSizeType) (*p++) << 32;
3960 value|=(MagickSizeType) (*p++) << 24;
3961 value|=(MagickSizeType) (*p++) << 16;
3962 value|=(MagickSizeType) (*p++) << 8;
3963 value|=(MagickSizeType) (*p++);
3990 MagickExport
unsigned short ReadBlobMSBShort(
Image *image)
4004 assert(image != (
Image *) NULL);
4005 assert(image->signature == MagickCoreSignature);
4007 p=(
const unsigned char *) ReadBlobStream(image,2,buffer,&count);
4009 return((
unsigned short) 0U);
4010 value=(
unsigned short) ((*p++) << 8);
4011 value|=(
unsigned short) (*p++);
4038 MagickExport
signed int ReadBlobMSBSignedLong(
Image *image)
4049 quantum.unsigned_value=ReadBlobMSBLong(image);
4050 return(quantum.signed_value);
4076 MagickExport
signed short ReadBlobMSBSignedShort(
Image *image)
4087 quantum.unsigned_value=ReadBlobMSBShort(image);
4088 return(quantum.signed_value);
4114 MagickExport
signed int ReadBlobSignedLong(
Image *image)
4125 quantum.unsigned_value=ReadBlobLong(image);
4126 return(quantum.signed_value);
4152 MagickExport
signed short ReadBlobSignedShort(
Image *image)
4163 quantum.unsigned_value=ReadBlobShort(image);
4164 return(quantum.signed_value);
4202 MagickExport magick_hot_spot
const void *ReadBlobStream(
Image *image,
4203 const size_t length,
void *magick_restrict data,ssize_t *count)
4206 *magick_restrict blob_info;
4208 assert(image != (
Image *) NULL);
4209 assert(image->signature == MagickCoreSignature);
4210 assert(image->blob != (
BlobInfo *) NULL);
4211 assert(image->blob->type != UndefinedStream);
4212 assert(count != (ssize_t *) NULL);
4213 blob_info=image->blob;
4214 if (blob_info->type != BlobStream)
4216 assert(data != NULL);
4217 *count=ReadBlob(image,length,(
unsigned char *) data);
4220 if (blob_info->offset >= (MagickOffsetType) blob_info->length)
4223 blob_info->eof=MagickTrue;
4226 data=blob_info->data+blob_info->offset;
4227 *count=(ssize_t) MagickMin((MagickOffsetType) length,(MagickOffsetType)
4228 blob_info->length-blob_info->offset);
4229 blob_info->offset+=(*count);
4230 if (*count != (ssize_t) length)
4231 blob_info->eof=MagickTrue;
4260 MagickExport
char *ReadBlobString(
Image *image,
char *
string)
4263 *magick_restrict blob_info;
4271 assert(image != (
Image *) NULL);
4272 assert(image->signature == MagickCoreSignature);
4273 assert(image->blob != (
BlobInfo *) NULL);
4274 assert(image->blob->type != UndefinedStream);
4275 if (IsEventLogging() != MagickFalse)
4276 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4278 blob_info=image->blob;
4279 switch (blob_info->type)
4281 case UndefinedStream:
4283 case StandardStream:
4286 char *p = fgets(
string,MagickPathExtent,blob_info->file_info.file);
4287 if (p == (
char *) NULL)
4289 if (ferror(blob_info->file_info.file) != 0)
4290 ThrowBlobException(blob_info);
4291 return((
char *) NULL);
4298 #if defined(MAGICKCORE_ZLIB_DELEGATE)
4299 char *p = gzgets(blob_info->file_info.gzfile,
string,MagickPathExtent);
4300 if (p == (
char *) NULL)
4303 (void) gzerror(blob_info->file_info.gzfile,&status);
4305 ThrowBlobException(blob_info);
4306 return((
char *) NULL);
4316 c=ReadBlobByte(image);
4319 blob_info->eof=MagickTrue;
4325 }
while (i < (MaxTextExtent-2));
4333 if ((
string[i] ==
'\r') || (
string[i] ==
'\n'))
4336 if ((
string[i-1] ==
'\r') || (
string[i-1] ==
'\n'))
4338 if ((*
string ==
'\0') && (blob_info->eof != MagickFalse))
4339 return((
char *) NULL);
4369 assert(blob->signature == MagickCoreSignature);
4370 if (IsEventLogging() != MagickFalse)
4371 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
4372 LockSemaphoreInfo(blob->semaphore);
4373 blob->reference_count++;
4374 UnlockSemaphoreInfo(blob->semaphore);
4411 MagickExport MagickOffsetType SeekBlob(
Image *image,
4412 const MagickOffsetType offset,
const int whence)
4415 *magick_restrict blob_info;
4417 assert(image != (
Image *) NULL);
4418 assert(image->signature == MagickCoreSignature);
4419 assert(image->blob != (
BlobInfo *) NULL);
4420 assert(image->blob->type != UndefinedStream);
4421 if (IsEventLogging() != MagickFalse)
4422 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4423 blob_info=image->blob;
4424 switch (blob_info->type)
4426 case UndefinedStream:
4428 case StandardStream:
4433 if ((offset < 0) && (whence == SEEK_SET))
4435 if (fseek(blob_info->file_info.file,offset,whence) < 0)
4437 blob_info->offset=TellBlob(image);
4442 #if defined(MAGICKCORE_ZLIB_DELEGATE)
4443 if (gzseek(blob_info->file_info.gzfile,offset,whence) < 0)
4446 blob_info->offset=TellBlob(image);
4462 blob_info->offset=offset;
4467 if (((offset > 0) && (blob_info->offset > (MAGICK_SSIZE_MAX-offset))) ||
4468 ((offset < 0) && (blob_info->offset < (MAGICK_SSIZE_MIN-offset))))
4473 if ((blob_info->offset+offset) < 0)
4475 blob_info->offset+=offset;
4480 if (((MagickOffsetType) blob_info->length+offset) < 0)
4482 blob_info->offset=blob_info->length+offset;
4486 if (blob_info->offset < (MagickOffsetType) ((off_t) blob_info->length))
4488 blob_info->eof=MagickFalse;
4491 if (blob_info->offset >= (MagickOffsetType) ((off_t) blob_info->extent))
4496 return(blob_info->offset);
4524 MagickExport
void SetBlobExempt(
Image *image,
const MagickBooleanType exempt)
4526 assert(image != (
const Image *) NULL);
4527 assert(image->signature == MagickCoreSignature);
4528 if (IsEventLogging() != MagickFalse)
4529 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4530 image->blob->exempt=exempt;
4559 MagickExport MagickBooleanType SetBlobExtent(
Image *image,
4560 const MagickSizeType extent)
4563 *magick_restrict blob_info;
4565 assert(image != (
Image *) NULL);
4566 assert(image->signature == MagickCoreSignature);
4567 assert(image->blob != (
BlobInfo *) NULL);
4568 assert(image->blob->type != UndefinedStream);
4569 if (IsEventLogging() != MagickFalse)
4570 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4571 blob_info=image->blob;
4572 switch (blob_info->type)
4574 case UndefinedStream:
4576 case StandardStream:
4577 return(MagickFalse);
4586 if (extent != (MagickSizeType) ((off_t) extent))
4587 return(MagickFalse);
4588 offset=SeekBlob(image,0,SEEK_END);
4590 return(MagickFalse);
4591 if ((MagickSizeType) offset >= extent)
4593 offset=SeekBlob(image,(MagickOffsetType) extent-1,SEEK_SET);
4596 count=(ssize_t) fwrite((
const unsigned char *)
"",1,1,
4597 blob_info->file_info.file);
4598 #if defined(MAGICKCORE_HAVE_POSIX_FALLOCATE)
4599 if (blob_info->synchronize != MagickFalse)
4604 file=fileno(blob_info->file_info.file);
4605 if ((file == -1) || (offset < 0))
4606 return(MagickFalse);
4607 (void) posix_fallocate(file,offset,extent-offset);
4610 offset=SeekBlob(image,offset,SEEK_SET);
4612 return(MagickFalse);
4617 return(MagickFalse);
4619 return(MagickFalse);
4621 return(MagickFalse);
4624 if (extent != (MagickSizeType) ((
size_t) extent))
4625 return(MagickFalse);
4626 if (blob_info->mapped != MagickFalse)
4634 (void) UnmapBlob(blob_info->data,blob_info->length);
4635 RelinquishMagickResource(MapResource,blob_info->length);
4636 if (extent != (MagickSizeType) ((off_t) extent))
4637 return(MagickFalse);
4638 offset=SeekBlob(image,0,SEEK_END);
4640 return(MagickFalse);
4641 if ((MagickSizeType) offset >= extent)
4643 offset=SeekBlob(image,(MagickOffsetType) extent-1,SEEK_SET);
4644 count=(ssize_t) fwrite((
const unsigned char *)
"",1,1,
4645 blob_info->file_info.file);
4646 #if defined(MAGICKCORE_HAVE_POSIX_FALLOCATE)
4647 if (blob_info->synchronize != MagickFalse)
4652 file=fileno(blob_info->file_info.file);
4653 if ((file == -1) || (offset < 0))
4654 return(MagickFalse);
4655 (void) posix_fallocate(file,offset,extent-offset);
4658 offset=SeekBlob(image,offset,SEEK_SET);
4660 return(MagickFalse);
4661 (void) AcquireMagickResource(MapResource,extent);
4662 blob_info->data=(
unsigned char*) MapBlob(fileno(
4663 blob_info->file_info.file),WriteMode,0,(size_t) extent);
4664 blob_info->extent=(size_t) extent;
4665 blob_info->length=(size_t) extent;
4666 (void) SyncBlob(image);
4669 blob_info->extent=(size_t) extent;
4670 blob_info->data=(
unsigned char *) ResizeQuantumMemory(blob_info->data,
4671 blob_info->extent+1,
sizeof(*blob_info->data));
4672 (void) SyncBlob(image);
4673 if (blob_info->data == (
unsigned char *) NULL)
4675 (void) DetachBlob(blob_info);
4676 return(MagickFalse);
4707 static int SyncBlob(
Image *image)
4710 *magick_restrict blob_info;
4715 assert(image != (
Image *) NULL);
4716 assert(image->signature == MagickCoreSignature);
4717 assert(image->blob != (
BlobInfo *) NULL);
4718 assert(image->blob->type != UndefinedStream);
4719 if (IsEventLogging() != MagickFalse)
4720 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4721 blob_info=image->blob;
4723 switch (blob_info->type)
4725 case UndefinedStream:
4726 case StandardStream:
4731 status=fflush(blob_info->file_info.file);
4736 #if defined(MAGICKCORE_ZLIB_DELEGATE)
4737 status=gzflush(blob_info->file_info.gzfile,Z_SYNC_FLUSH);
4743 #if defined(MAGICKCORE_BZLIB_DELEGATE)
4744 status=BZ2_bzflush(blob_info->file_info.bzfile);
4778 MagickExport MagickOffsetType TellBlob(
const Image *image)
4781 *magick_restrict blob_info;
4786 assert(image != (
Image *) NULL);
4787 assert(image->signature == MagickCoreSignature);
4788 assert(image->blob != (
BlobInfo *) NULL);
4789 assert(image->blob->type != UndefinedStream);
4790 if (IsEventLogging() != MagickFalse)
4791 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4792 blob_info=image->blob;
4794 switch (blob_info->type)
4796 case UndefinedStream:
4797 case StandardStream:
4801 offset=ftell(blob_info->file_info.file);
4808 #if defined(MAGICKCORE_ZLIB_DELEGATE)
4809 offset=(MagickOffsetType) gztell(blob_info->file_info.gzfile);
4819 offset=blob_info->offset;
4851 MagickExport MagickBooleanType UnmapBlob(
void *map,
const size_t length)
4853 #if defined(MAGICKCORE_HAVE_MMAP)
4857 status=munmap(map,length);
4858 return(status == -1 ? MagickFalse : MagickTrue);
4862 return(MagickFalse);
4895 MagickExport ssize_t WriteBlob(
Image *image,
const size_t length,
4896 const unsigned char *data)
4899 *magick_restrict blob_info;
4913 assert(image != (
Image *) NULL);
4914 assert(image->signature == MagickCoreSignature);
4915 assert(image->blob != (
BlobInfo *) NULL);
4916 assert(image->blob->type != UndefinedStream);
4919 assert(data != (
const unsigned char *) NULL);
4920 blob_info=image->blob;
4922 p=(
const unsigned char *) data;
4923 q=(
unsigned char *) data;
4924 switch (blob_info->type)
4926 case UndefinedStream:
4928 case StandardStream:
4936 count=(ssize_t) fwrite((
const char *) data,1,length,
4937 blob_info->file_info.file);
4942 c=putc((
int) *p++,blob_info->file_info.file);
4949 c=putc((
int) *p++,blob_info->file_info.file);
4956 c=putc((
int) *p++,blob_info->file_info.file);
4963 c=putc((
int) *p++,blob_info->file_info.file);
4971 if ((count != (ssize_t) length) &&
4972 (ferror(blob_info->file_info.file) != 0))
4973 ThrowBlobException(blob_info);
4978 #if defined(MAGICKCORE_ZLIB_DELEGATE)
4989 for (i=0; i < (ssize_t) length; i+=count)
4991 count=(ssize_t) gzwrite(blob_info->file_info.gzfile,q+i,
4992 (
unsigned int) MagickMin(length-i,MagickMaxBufferExtent));
5005 c=gzputc(blob_info->file_info.gzfile,(
int) *p++);
5012 c=gzputc(blob_info->file_info.gzfile,(
int) *p++);
5019 c=gzputc(blob_info->file_info.gzfile,(
int) *p++);
5026 c=gzputc(blob_info->file_info.gzfile,(
int) *p++);
5035 (void) gzerror(blob_info->file_info.gzfile,&status);
5036 if ((count != (ssize_t) length) && (status != Z_OK))
5037 ThrowBlobException(blob_info);
5043 #if defined(MAGICKCORE_BZLIB_DELEGATE)
5050 for (i=0; i < (ssize_t) length; i+=count)
5052 count=(ssize_t) BZ2_bzwrite(blob_info->file_info.bzfile,q+i,
5053 (
int) MagickMin(length-i,MagickMaxBufferExtent));
5063 (void) BZ2_bzerror(blob_info->file_info.bzfile,&status);
5064 if ((count != (ssize_t) length) && (status != BZ_OK))
5065 ThrowBlobException(blob_info);
5071 count=(ssize_t) blob_info->stream(image,data,length);
5076 if ((blob_info->offset+(MagickOffsetType) length) >=
5077 (MagickOffsetType) blob_info->extent)
5079 if (blob_info->mapped != MagickFalse)
5081 blob_info->extent+=length+blob_info->quantum;
5082 blob_info->quantum<<=1;
5083 blob_info->data=(
unsigned char *) ResizeQuantumMemory(
5084 blob_info->data,blob_info->extent+1,
sizeof(*blob_info->data));
5085 (void) SyncBlob(image);
5086 if (blob_info->data == (
unsigned char *) NULL)
5088 (void) DetachBlob(blob_info);
5092 q=blob_info->data+blob_info->offset;
5093 (void) memcpy(q,p,length);
5094 blob_info->offset+=length;
5095 if (blob_info->offset >= (MagickOffsetType) blob_info->length)
5096 blob_info->length=(
size_t) blob_info->offset;
5097 count=(ssize_t) length;
5100 if (count != (ssize_t) length)
5101 ThrowBlobException(blob_info);
5130 MagickExport ssize_t WriteBlobByte(
Image *image,
const unsigned char value)
5133 *magick_restrict blob_info;
5138 assert(image != (
Image *) NULL);
5139 assert(image->signature == MagickCoreSignature);
5140 assert(image->blob != (
BlobInfo *) NULL);
5141 assert(image->blob->type != UndefinedStream);
5142 blob_info=image->blob;
5144 switch (blob_info->type)
5146 case StandardStream:
5153 c=putc((
int) value,blob_info->file_info.file);
5156 if (ferror(blob_info->file_info.file) != 0)
5157 ThrowBlobException(blob_info);
5165 count=WriteBlobStream(image,1,&value);
5197 MagickExport ssize_t WriteBlobFloat(
Image *image,
const float value)
5208 quantum.unsigned_value=0U;
5209 quantum.float_value=value;
5210 return(WriteBlobLong(image,quantum.unsigned_value));
5238 MagickExport ssize_t WriteBlobLong(
Image *image,
const unsigned int value)
5243 assert(image != (
Image *) NULL);
5244 assert(image->signature == MagickCoreSignature);
5245 if (image->endian == LSBEndian)
5247 buffer[0]=(
unsigned char) value;
5248 buffer[1]=(
unsigned char) (value >> 8);
5249 buffer[2]=(
unsigned char) (value >> 16);
5250 buffer[3]=(
unsigned char) (value >> 24);
5251 return(WriteBlobStream(image,4,buffer));
5253 buffer[0]=(
unsigned char) (value >> 24);
5254 buffer[1]=(
unsigned char) (value >> 16);
5255 buffer[2]=(
unsigned char) (value >> 8);
5256 buffer[3]=(
unsigned char) value;
5257 return(WriteBlobStream(image,4,buffer));
5285 MagickExport ssize_t WriteBlobShort(
Image *image,
const unsigned short value)
5290 assert(image != (
Image *) NULL);
5291 assert(image->signature == MagickCoreSignature);
5292 if (image->endian == LSBEndian)
5294 buffer[0]=(
unsigned char) value;
5295 buffer[1]=(
unsigned char) (value >> 8);
5296 return(WriteBlobStream(image,2,buffer));
5298 buffer[0]=(
unsigned char) (value >> 8);
5299 buffer[1]=(
unsigned char) value;
5300 return(WriteBlobStream(image,2,buffer));
5328 MagickExport ssize_t WriteBlobLSBLong(
Image *image,
const unsigned int value)
5333 assert(image != (
Image *) NULL);
5334 assert(image->signature == MagickCoreSignature);
5335 buffer[0]=(
unsigned char) value;
5336 buffer[1]=(
unsigned char) (value >> 8);
5337 buffer[2]=(
unsigned char) (value >> 16);
5338 buffer[3]=(
unsigned char) (value >> 24);
5339 return(WriteBlobStream(image,4,buffer));
5367 MagickExport ssize_t WriteBlobLSBShort(
Image *image,
const unsigned short value)
5372 assert(image != (
Image *) NULL);
5373 assert(image->signature == MagickCoreSignature);
5374 buffer[0]=(
unsigned char) value;
5375 buffer[1]=(
unsigned char) (value >> 8);
5376 return(WriteBlobStream(image,2,buffer));
5404 MagickExport ssize_t WriteBlobLSBSignedLong(
Image *image,
const signed int value)
5418 assert(image != (
Image *) NULL);
5419 assert(image->signature == MagickCoreSignature);
5420 quantum.signed_value=value;
5421 buffer[0]=(
unsigned char) quantum.unsigned_value;
5422 buffer[1]=(
unsigned char) (quantum.unsigned_value >> 8);
5423 buffer[2]=(
unsigned char) (quantum.unsigned_value >> 16);
5424 buffer[3]=(
unsigned char) (quantum.unsigned_value >> 24);
5425 return(WriteBlobStream(image,4,buffer));
5453 MagickExport ssize_t WriteBlobLSBSignedShort(
Image *image,
5454 const signed short value)
5468 assert(image != (
Image *) NULL);
5469 assert(image->signature == MagickCoreSignature);
5470 quantum.signed_value=value;
5471 buffer[0]=(
unsigned char) quantum.unsigned_value;
5472 buffer[1]=(
unsigned char) (quantum.unsigned_value >> 8);
5473 return(WriteBlobStream(image,2,buffer));
5501 MagickExport ssize_t WriteBlobMSBLong(
Image *image,
const unsigned int value)
5506 assert(image != (
Image *) NULL);
5507 assert(image->signature == MagickCoreSignature);
5508 buffer[0]=(
unsigned char) (value >> 24);
5509 buffer[1]=(
unsigned char) (value >> 16);
5510 buffer[2]=(
unsigned char) (value >> 8);
5511 buffer[3]=(
unsigned char) value;
5512 return(WriteBlobStream(image,4,buffer));
5540 MagickExport ssize_t WriteBlobMSBLongLong(
Image *image,
5541 const MagickSizeType value)
5546 assert(image != (
Image *) NULL);
5547 assert(image->signature == MagickCoreSignature);
5548 buffer[0]=(
unsigned char) (value >> 56);
5549 buffer[1]=(
unsigned char) (value >> 48);
5550 buffer[2]=(
unsigned char) (value >> 40);
5551 buffer[3]=(
unsigned char) (value >> 32);
5552 buffer[4]=(
unsigned char) (value >> 24);
5553 buffer[5]=(
unsigned char) (value >> 16);
5554 buffer[6]=(
unsigned char) (value >> 8);
5555 buffer[7]=(
unsigned char) value;
5556 return(WriteBlobStream(image,8,buffer));
5584 MagickExport ssize_t WriteBlobMSBShort(
Image *image,
const unsigned short value)
5589 assert(image != (
Image *) NULL);
5590 assert(image->signature == MagickCoreSignature);
5591 buffer[0]=(
unsigned char) (value >> 8);
5592 buffer[1]=(
unsigned char) value;
5593 return(WriteBlobStream(image,2,buffer));
5621 MagickExport ssize_t WriteBlobMSBSignedLong(
Image *image,
const signed int value)
5635 assert(image != (
Image *) NULL);
5636 assert(image->signature == MagickCoreSignature);
5637 quantum.signed_value=value;
5638 buffer[0]=(
unsigned char) (quantum.unsigned_value >> 24);
5639 buffer[1]=(
unsigned char) (quantum.unsigned_value >> 16);
5640 buffer[2]=(
unsigned char) (quantum.unsigned_value >> 8);
5641 buffer[3]=(
unsigned char) quantum.unsigned_value;
5642 return(WriteBlobStream(image,4,buffer));
5670 MagickExport ssize_t WriteBlobMSBSignedShort(
Image *image,
5671 const signed short value)
5685 assert(image != (
Image *) NULL);
5686 assert(image->signature == MagickCoreSignature);
5687 quantum.signed_value=value;
5688 buffer[0]=(
unsigned char) (quantum.unsigned_value >> 8);
5689 buffer[1]=(
unsigned char) quantum.unsigned_value;
5690 return(WriteBlobStream(image,2,buffer));
5718 MagickExport ssize_t WriteBlobString(
Image *image,
const char *
string)
5720 assert(image != (
Image *) NULL);
5721 assert(image->signature == MagickCoreSignature);
5722 assert(
string != (
const char *) NULL);
5723 return(WriteBlobStream(image,strlen(
string),(
const unsigned char *)
string));