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)
206MagickExport
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;
252MagickExport 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+=(size_t) 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);
328MagickExport
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);
498static 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;
505MagickExport 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);
675MagickExport
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);
736MagickExport
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;
788MagickPrivate
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;
842MagickExport 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);
900MagickExport
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);
935MagickExport
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);
1013MagickExport
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);
1096MagickExport
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);
1286static 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);
1320MagickExport 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);
1423MagickExport 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);
1456MagickExport FILE *GetBlobFileHandle(
const Image *image)
1458 assert(image != (
const Image *) NULL);
1459 assert(image->signature == MagickCoreSignature);
1460 return(image->blob->file_info.file);
1485MagickExport
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;
1521MagickExport
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);
1553MagickExport 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;
1640MagickExport
unsigned char *GetBlobStreamData(
const Image *image)
1642 assert(image != (
const Image *) NULL);
1643 assert(image->signature == MagickCoreSignature);
1644 return(image->blob->data);
1669MagickExport 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);
1711MagickExport
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,
"NoEncodeDelegateForThisImageFormat",
"`%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=(
unsigned char *) RelinquishMagickMemory(blob);
1777 blob=(
unsigned char *) ResizeQuantumMemory(blob,*length+1,
1778 sizeof(
unsigned char));
1780 else if (status == MagickFalse)
1781 blob_info->blob=RelinquishMagickMemory(blob_info->blob);
1787 unique[MagickPathExtent];
1795 file=AcquireUniqueFileResource(unique);
1798 ThrowFileException(exception,BlobError,
"UnableToWriteBlob",
1799 image_info->filename);
1803 blob_info->file=fdopen(file,
"wb");
1804 if (blob_info->file != (FILE *) NULL)
1806 (void) FormatLocaleString(image->filename,MagickPathExtent,
1807 "%s:%s",image->magick,unique);
1808 status=WriteImage(blob_info,image);
1809 (void) CloseBlob(image);
1810 (void) fclose(blob_info->file);
1811 if (status == MagickFalse)
1812 InheritException(exception,&image->exception);
1814 blob=FileToBlob(unique,SIZE_MAX,length,exception);
1816 (void) RelinquishUniqueFileResource(unique);
1819 blob_info=DestroyImageInfo(blob_info);
1851MagickExport MagickBooleanType ImageToFile(
Image *image,
char *filename,
1876 assert(image != (
Image *) NULL);
1877 assert(image->signature == MagickCoreSignature);
1878 assert(image->blob != (
BlobInfo *) NULL);
1879 assert(image->blob->type != UndefinedStream);
1880 assert(filename != (
const char *) NULL);
1881 if (IsEventLogging() != MagickFalse)
1882 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",filename);
1883 if (*filename ==
'\0')
1884 file=AcquireUniqueFileResource(filename);
1886 if (LocaleCompare(filename,
"-") == 0)
1887 file=fileno(stdout);
1889 file=open_utf8(filename,O_RDWR | O_CREAT | O_EXCL | O_BINARY,S_MODE);
1892 ThrowFileException(exception,BlobError,
"UnableToWriteBlob",filename);
1893 return(MagickFalse);
1895 quantum=(size_t) MagickMaxBufferExtent;
1896 if ((fstat(file,&file_stats) == 0) && (file_stats.st_size > 0))
1897 quantum=(size_t) MagickMin(file_stats.st_size,MagickMaxBufferExtent);
1898 buffer=(
unsigned char *) AcquireQuantumMemory(quantum,
sizeof(*buffer));
1899 if (buffer == (
unsigned char *) NULL)
1902 (void) ThrowMagickException(exception,GetMagickModule(),
1903 ResourceLimitError,
"MemoryAllocationError",
"`%s'",filename);
1904 return(MagickFalse);
1907 p=(
const unsigned char *) ReadBlobStream(image,quantum,buffer,&count);
1908 for (i=0; count > 0; )
1910 length=(size_t) count;
1911 for (i=0; i < length; i+=count)
1913 count=write(file,p+i,(
size_t) (length-i));
1923 p=(
const unsigned char *) ReadBlobStream(image,quantum,buffer,&count);
1925 if (LocaleCompare(filename,
"-") != 0)
1927 buffer=(
unsigned char *) RelinquishMagickMemory(buffer);
1928 if ((file == -1) || (i < length))
1932 ThrowFileException(exception,BlobError,
"UnableToWriteBlob",filename);
1933 return(MagickFalse);
1973MagickExport
unsigned char *ImagesToBlob(
const ImageInfo *image_info,
1988 assert(image_info != (
const ImageInfo *) NULL);
1989 assert(image_info->signature == MagickCoreSignature);
1990 assert(images != (
Image *) NULL);
1991 assert(images->signature == MagickCoreSignature);
1993 if (IsEventLogging() != MagickFalse)
1994 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",
1995 image_info->filename);
1997 blob=(
unsigned char *) NULL;
1998 blob_info=CloneImageInfo(image_info);
1999 (void) SetImageInfo(blob_info,(
unsigned int) GetImageListLength(images),
2001 if (*blob_info->magick !=
'\0')
2002 (void) CopyMagickString(images->magick,blob_info->magick,MagickPathExtent);
2003 magick_info=GetMagickInfo(images->magick,exception);
2004 if (magick_info == (
const MagickInfo *) NULL)
2006 (void) ThrowMagickException(exception,GetMagickModule(),
2007 MissingDelegateError,
"NoEncodeDelegateForThisImageFormat",
"`%s'",
2009 blob_info=DestroyImageInfo(blob_info);
2012 if (GetMagickAdjoin(magick_info) == MagickFalse)
2014 blob_info=DestroyImageInfo(blob_info);
2015 return(ImageToBlob(image_info,images,length,exception));
2017 (void) CopyMagickString(blob_info->magick,images->magick,MagickPathExtent);
2018 if (GetMagickBlobSupport(magick_info) != MagickFalse)
2023 blob_info->length=0;
2024 blob_info->blob=(
void *) AcquireQuantumMemory(MagickMaxBlobExtent,
2025 sizeof(
unsigned char));
2026 if (blob_info->blob == (
void *) NULL)
2027 (
void) ThrowMagickException(exception,GetMagickModule(),
2028 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",images->filename);
2031 (void) CloseBlob(images);
2032 images->blob->exempt=MagickTrue;
2033 *images->filename=
'\0';
2034 status=WriteImages(blob_info,images,images->filename,exception);
2035 *length=images->blob->length;
2036 blob=DetachBlob(images->blob);
2037 if (blob != (
void *) NULL)
2039 if (status == MagickFalse)
2040 blob=(
unsigned char *) RelinquishMagickMemory(blob);
2042 blob=(
unsigned char *) ResizeQuantumMemory(blob,*length+1,
2043 sizeof(
unsigned char));
2045 else if (status == MagickFalse)
2046 blob_info->blob=RelinquishMagickMemory(blob_info->blob);
2052 filename[MagickPathExtent],
2053 unique[MagickPathExtent];
2061 file=AcquireUniqueFileResource(unique);
2064 ThrowFileException(exception,FileOpenError,
"UnableToWriteBlob",
2065 image_info->filename);
2069 blob_info->file=fdopen(file,
"wb");
2070 if (blob_info->file != (FILE *) NULL)
2072 (void) FormatLocaleString(filename,MagickPathExtent,
"%s:%s",
2073 images->magick,unique);
2074 status=WriteImages(blob_info,images,filename,exception);
2075 (void) CloseBlob(images);
2076 (void) fclose(blob_info->file);
2077 if (status == MagickFalse)
2078 InheritException(exception,&images->exception);
2080 blob=FileToBlob(unique,SIZE_MAX,length,exception);
2082 (void) RelinquishUniqueFileResource(unique);
2085 blob_info=DestroyImageInfo(blob_info);
2121MagickExport MagickBooleanType InjectImageBlob(
const ImageInfo *image_info,
2125 filename[MagickPathExtent];
2154 assert(image_info != (
ImageInfo *) NULL);
2155 assert(image_info->signature == MagickCoreSignature);
2156 assert(image != (
Image *) NULL);
2157 assert(image->signature == MagickCoreSignature);
2158 assert(inject_image != (
Image *) NULL);
2159 assert(inject_image->signature == MagickCoreSignature);
2161 if (IsEventLogging() != MagickFalse)
2162 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2163 unique_file=(FILE *) NULL;
2164 file=AcquireUniqueFileResource(filename);
2166 unique_file=fdopen(file,
"wb");
2167 if ((file == -1) || (unique_file == (FILE *) NULL))
2169 (void) CopyMagickString(image->filename,filename,MagickPathExtent);
2170 ThrowFileException(exception,FileOpenError,
"UnableToCreateTemporaryFile",
2172 return(MagickFalse);
2174 byte_image=CloneImage(inject_image,0,0,MagickFalse,exception);
2175 if (byte_image == (
Image *) NULL)
2177 (void) fclose(unique_file);
2178 (void) RelinquishUniqueFileResource(filename);
2179 return(MagickFalse);
2181 (void) FormatLocaleString(byte_image->filename,MagickPathExtent,
"%s:%s",
2183 DestroyBlob(byte_image);
2184 byte_image->blob=CloneBlobInfo((
BlobInfo *) NULL);
2185 write_info=CloneImageInfo(image_info);
2186 SetImageInfoFile(write_info,unique_file);
2187 status=WriteImage(write_info,byte_image);
2188 write_info=DestroyImageInfo(write_info);
2189 byte_image=DestroyImage(byte_image);
2190 (void) fclose(unique_file);
2191 if (status == MagickFalse)
2193 (void) RelinquishUniqueFileResource(filename);
2194 return(MagickFalse);
2199 file=open_utf8(filename,O_RDONLY | O_BINARY,0);
2202 (void) RelinquishUniqueFileResource(filename);
2203 ThrowFileException(exception,FileOpenError,
"UnableToOpenFile",
2204 image_info->filename);
2205 return(MagickFalse);
2207 quantum=(size_t) MagickMaxBufferExtent;
2208 if ((fstat(file,&file_stats) == 0) && (file_stats.st_size > 0))
2209 quantum=(size_t) MagickMin(file_stats.st_size,MagickMaxBufferExtent);
2210 buffer=(
unsigned char *) AcquireQuantumMemory(quantum,
sizeof(*buffer));
2211 if (buffer == (
unsigned char *) NULL)
2213 (void) RelinquishUniqueFileResource(filename);
2215 ThrowBinaryException(ResourceLimitError,
"MemoryAllocationFailed",
2220 ssize_t count = read(file,buffer,quantum);
2227 status=WriteBlobStream(image,(
size_t) count,buffer) == count ? MagickTrue :
2232 ThrowFileException(exception,FileOpenError,
"UnableToWriteBlob",filename);
2233 (void) RelinquishUniqueFileResource(filename);
2234 buffer=(
unsigned char *) RelinquishMagickMemory(buffer);
2260MagickExport MagickBooleanType IsBlobExempt(
const Image *image)
2262 assert(image != (
const Image *) NULL);
2263 assert(image->signature == MagickCoreSignature);
2264 if (IsEventLogging() != MagickFalse)
2265 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2266 return(image->blob->exempt);
2291MagickExport MagickBooleanType IsBlobSeekable(
const Image *image)
2294 *magick_restrict blob_info;
2296 assert(image != (
const Image *) NULL);
2297 assert(image->signature == MagickCoreSignature);
2298 if (IsEventLogging() != MagickFalse)
2299 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2300 blob_info=image->blob;
2301 switch (blob_info->type)
2310 if (blob_info->file_info.file == (FILE *) NULL)
2311 return(MagickFalse);
2312 status=fseek(blob_info->file_info.file,0,SEEK_CUR);
2313 return(status == -1 ? MagickFalse : MagickTrue);
2317#if defined(MAGICKCORE_ZLIB_DELEGATE)
2321 if (blob_info->file_info.gzfile == (gzFile) NULL)
2322 return(MagickFalse);
2323 offset=gzseek(blob_info->file_info.gzfile,0,SEEK_CUR);
2324 return(offset < 0 ? MagickFalse : MagickTrue);
2329 case UndefinedStream:
2333 case StandardStream:
2338 return(MagickFalse);
2363MagickExport MagickBooleanType IsBlobTemporary(
const Image *image)
2365 assert(image != (
const Image *) NULL);
2366 assert(image->signature == MagickCoreSignature);
2367 if (IsEventLogging() != MagickFalse)
2368 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2369 return(image->blob->temporary);
2401MagickExport
unsigned char *MapBlob(
int file,
const MapMode mode,
2402 const MagickOffsetType offset,
const size_t length)
2404#if defined(MAGICKCORE_HAVE_MMAP)
2417#if defined(MAP_ANONYMOUS)
2418 flags|=MAP_ANONYMOUS;
2420 return((
unsigned char *) NULL);
2427 protection=PROT_READ;
2433 protection=PROT_WRITE;
2439 protection=PROT_READ | PROT_WRITE;
2444#if !defined(MAGICKCORE_HAVE_HUGEPAGES) || !defined(MAP_HUGETLB)
2445 map=(
unsigned char *) mmap((
char *) NULL,length,protection,flags,file,offset);
2447 map=(
unsigned char *) mmap((
char *) NULL,length,protection,flags |
2448 MAP_HUGETLB,file,offset);
2449 if (map == (
unsigned char *) MAP_FAILED)
2450 map=(
unsigned char *) mmap((
char *) NULL,length,protection,flags,file,
2453 if (map == (
unsigned char *) MAP_FAILED)
2454 return((
unsigned char *) NULL);
2461 return((
unsigned char *) NULL);
2490MagickExport
void MSBOrderLong(
unsigned char *buffer,
const size_t length)
2499 assert(buffer != (
unsigned char *) NULL);
2506 *buffer++=(
unsigned char) c;
2510 *buffer++=(
unsigned char) c;
2540MagickExport
void MSBOrderShort(
unsigned char *p,
const size_t length)
2548 assert(p != (
unsigned char *) NULL);
2555 *p++=(
unsigned char) c;
2591static inline MagickBooleanType SetStreamBuffering(
const ImageInfo *image_info,
2603 size=MagickMinBufferExtent;
2604 option=GetImageOption(image_info,
"stream:buffer-size");
2605 if (option != (
const char *) NULL)
2606 size=StringToUnsignedLong(option);
2607 status=setvbuf(image->blob->file_info.file,(
char *) NULL,size == 0 ?
2608 _IONBF : _IOFBF,size);
2609 return(status == 0 ? MagickTrue : MagickFalse);
2612#if defined(MAGICKCORE_ZLIB_DELEGATE)
2613static inline gzFile gzopen_utf8(
const char *path,
const char *mode)
2615#if !defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__CYGWIN__)
2616 return(gzopen(path,mode));
2624 path_wide=create_wchar_path(path);
2625 if (path_wide == (
wchar_t *) NULL)
2626 return((gzFile) NULL);
2627 file=gzopen_w(path_wide,mode);
2628 path_wide=(
wchar_t *) RelinquishMagickMemory(path_wide);
2634MagickExport MagickBooleanType OpenBlob(
const ImageInfo *image_info,
2638 *magick_restrict blob_info;
2641 extension[MagickPathExtent],
2642 filename[MagickPathExtent];
2653 assert(image_info != (
ImageInfo *) NULL);
2654 assert(image_info->signature == MagickCoreSignature);
2655 assert(image != (
Image *) NULL);
2656 assert(image->signature == MagickCoreSignature);
2657 if (IsEventLogging() != MagickFalse)
2658 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",
2659 image_info->filename);
2660 blob_info=image->blob;
2661 if (image_info->blob != (
void *) NULL)
2663 if (image_info->stream != (StreamHandler) NULL)
2664 blob_info->stream=(StreamHandler) image_info->stream;
2665 AttachBlob(blob_info,image_info->blob,image_info->length);
2668 (void) DetachBlob(blob_info);
2669 blob_info->mode=mode;
2672 default: type=
"r";
break;
2673 case ReadBlobMode: type=
"r";
break;
2674 case ReadBinaryBlobMode: type=
"rb";
break;
2675 case WriteBlobMode: type=
"w";
break;
2676 case WriteBinaryBlobMode: type=
"w+b";
break;
2677 case AppendBlobMode: type=
"a";
break;
2678 case AppendBinaryBlobMode: type=
"a+b";
break;
2681 blob_info->synchronize=image_info->synchronize;
2682 if (image_info->stream != (StreamHandler) NULL)
2684 blob_info->stream=(StreamHandler) image_info->stream;
2687 blob_info->type=FifoStream;
2695 (void) CopyMagickString(filename,image->filename,MagickPathExtent);
2696 rights=ReadPolicyRights;
2698 rights=WritePolicyRights;
2699 if (IsRightsAuthorized(PathPolicyDomain,rights,filename) == MagickFalse)
2702 (void) ThrowMagickException(exception,GetMagickModule(),PolicyError,
2703 "NotAuthorized",
"`%s'",filename);
2704 return(MagickFalse);
2706 if ((LocaleCompare(filename,
"-") == 0) ||
2707 ((*filename ==
'\0') && (image_info->file == (FILE *) NULL)))
2709 blob_info->file_info.file=(*type ==
'r') ? stdin : stdout;
2710#if defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__OS2__)
2711 if (strchr(type,
'b') != (
char *) NULL)
2712 (void) setmode(fileno(blob_info->file_info.file),_O_BINARY);
2714 blob_info->type=StandardStream;
2715 blob_info->exempt=MagickTrue;
2716 return(SetStreamBuffering(image_info,image));
2718 if ((LocaleNCompare(filename,
"fd:",3) == 0) &&
2719 (IsGeometry(filename+3) != MagickFalse))
2722 fileMode[MagickPathExtent];
2726 blob_info->file_info.file=fdopen(StringToLong(filename+3),fileMode);
2727 if (blob_info->file_info.file == (FILE *) NULL)
2729 ThrowFileException(exception,BlobError,
"UnableToOpenBlob",filename);
2730 return(MagickFalse);
2732#if defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__OS2__)
2733 if (strchr(type,
'b') != (
char *) NULL)
2734 (void) setmode(fileno(blob_info->file_info.file),_O_BINARY);
2736 blob_info->type=FileStream;
2737 blob_info->exempt=MagickTrue;
2738 return(SetStreamBuffering(image_info,image));
2740#if defined(MAGICKCORE_HAVE_POPEN) && defined(MAGICKCORE_PIPES_SUPPORT)
2741 if (*filename ==
'|')
2744 fileMode[MagickPathExtent],
2752 (void) signal(SIGPIPE,SIG_IGN);
2756 sanitize_command=SanitizeString(filename+1);
2757 blob_info->file_info.file=(FILE *) popen_utf8(sanitize_command,
2759 sanitize_command=DestroyString(sanitize_command);
2760 if (blob_info->file_info.file == (FILE *) NULL)
2762 ThrowFileException(exception,BlobError,
"UnableToOpenBlob",filename);
2763 return(MagickFalse);
2765 blob_info->type=PipeStream;
2766 blob_info->exempt=MagickTrue;
2767 return(SetStreamBuffering(image_info,image));
2770 status=GetPathAttributes(filename,&blob_info->properties);
2771#if defined(S_ISFIFO)
2772 if ((status != MagickFalse) && S_ISFIFO(blob_info->properties.st_mode))
2774 blob_info->file_info.file=(FILE *) fopen_utf8(filename,type);
2775 if (blob_info->file_info.file == (FILE *) NULL)
2777 ThrowFileException(exception,BlobError,
"UnableToOpenBlob",filename);
2778 return(MagickFalse);
2780 blob_info->type=FileStream;
2781 blob_info->exempt=MagickTrue;
2782 return(SetStreamBuffering(image_info,image));
2785 GetPathComponent(image->filename,ExtensionPath,extension);
2788 (void) CopyMagickString(filename,image->filename,MagickPathExtent);
2789 if ((image_info->adjoin == MagickFalse) ||
2790 (strchr(filename,
'%') != (
char *) NULL))
2795 (void) InterpretImageFilename(image_info,image,image->filename,(
int)
2796 image->scene,filename);
2797 if ((LocaleCompare(filename,image->filename) == 0) &&
2798 ((GetPreviousImageInList(image) != (
Image *) NULL) ||
2799 (GetNextImageInList(image) != (
Image *) NULL)))
2802 path[MagickPathExtent];
2804 GetPathComponent(image->filename,RootPath,path);
2805 if (*extension ==
'\0')
2806 (void) FormatLocaleString(filename,MagickPathExtent,
"%s-%.20g",
2807 path,(
double) image->scene);
2809 (
void) FormatLocaleString(filename,MagickPathExtent,
2810 "%s-%.20g.%s",path,(
double) image->scene,extension);
2812 (void) CopyMagickString(image->filename,filename,MagickPathExtent);
2813#if defined(macintosh)
2814 SetApplicationType(filename,image_info->magick,
'8BIM');
2818 if (image_info->file != (FILE *) NULL)
2820 blob_info->file_info.file=image_info->file;
2821 blob_info->type=FileStream;
2822 blob_info->exempt=MagickTrue;
2827 blob_info->file_info.file=(FILE *) fopen_utf8(filename,type);
2828 if (blob_info->file_info.file != (FILE *) NULL)
2836 blob_info->type=FileStream;
2837 (void) fstat(fileno(blob_info->file_info.file),
2838 &blob_info->properties);
2839 (void) SetStreamBuffering(image_info,image);
2840 (void) memset(magick,0,
sizeof(magick));
2841 count=fread(magick,1,
sizeof(magick),blob_info->file_info.file);
2842 (void) fseek(blob_info->file_info.file,-((off_t) count),SEEK_CUR);
2843#if defined(MAGICKCORE_POSIX_SUPPORT)
2844 (void) fflush(blob_info->file_info.file);
2846 (void) LogMagickEvent(BlobEvent,GetMagickModule(),
2847 " read %.20g magic header bytes",(double) count);
2848#if defined(MAGICKCORE_ZLIB_DELEGATE)
2849 if (((
int) magick[0] == 0x1F) && ((
int) magick[1] == 0x8B) &&
2850 ((
int) magick[2] == 0x08))
2853 gzfile = gzopen_utf8(filename,
"rb");
2855 if (gzfile != (gzFile) NULL)
2857 if (blob_info->file_info.file != (FILE *) NULL)
2858 (void) fclose(blob_info->file_info.file);
2859 blob_info->file_info.file=(FILE *) NULL;
2860 blob_info->file_info.gzfile=gzfile;
2861 blob_info->type=ZipStream;
2865#if defined(MAGICKCORE_BZLIB_DELEGATE)
2866 if (strncmp((
char *) magick,
"BZh",3) == 0)
2869 *bzfile = BZ2_bzopen(filename,
"r");
2871 if (bzfile != (BZFILE *) NULL)
2873 if (blob_info->file_info.file != (FILE *) NULL)
2874 (void) fclose(blob_info->file_info.file);
2875 blob_info->file_info.file=(FILE *) NULL;
2876 blob_info->file_info.bzfile=bzfile;
2877 blob_info->type=BZipStream;
2881 if (blob_info->type == FileStream)
2892 sans_exception=AcquireExceptionInfo();
2893 magick_info=GetMagickInfo(image_info->magick,sans_exception);
2894 sans_exception=DestroyExceptionInfo(sans_exception);
2895 length=(size_t) blob_info->properties.st_size;
2896 if ((magick_info != (
const MagickInfo *) NULL) &&
2897 (GetMagickBlobSupport(magick_info) != MagickFalse) &&
2898 (length > MagickMaxBufferExtent) &&
2899 (AcquireMagickResource(MapResource,length) != MagickFalse))
2904 blob=MapBlob(fileno(blob_info->file_info.file),ReadMode,0,
2906 if (blob == (
void *) NULL)
2907 RelinquishMagickResource(MapResource,length);
2913 if (image_info->file != (FILE *) NULL)
2914 blob_info->exempt=MagickFalse;
2917 (void) fclose(blob_info->file_info.file);
2918 blob_info->file_info.file=(FILE *) NULL;
2920 AttachBlob(blob_info,blob,length);
2921 blob_info->mapped=MagickTrue;
2928#if defined(MAGICKCORE_ZLIB_DELEGATE)
2929 if ((LocaleCompare(extension,
"gz") == 0) ||
2930 (LocaleCompare(extension,
"wmz") == 0) ||
2931 (LocaleCompare(extension,
"svgz") == 0))
2933 blob_info->file_info.gzfile=gzopen_utf8(filename,
"wb");
2934 if (blob_info->file_info.gzfile != (gzFile) NULL)
2935 blob_info->type=ZipStream;
2939#if defined(MAGICKCORE_BZLIB_DELEGATE)
2940 if (LocaleCompare(extension,
"bz2") == 0)
2942 if (mode == WriteBinaryBlobMode)
2944 blob_info->file_info.bzfile=BZ2_bzopen(filename,
"w");
2945 if (blob_info->file_info.bzfile != (BZFILE *) NULL)
2946 blob_info->type=BZipStream;
2951 blob_info->file_info.file=(FILE *) fopen_utf8(filename,type);
2952 if (blob_info->file_info.file != (FILE *) NULL)
2954 blob_info->type=FileStream;
2955 (void) SetStreamBuffering(image_info,image);
2958 blob_info->status=MagickFalse;
2959 blob_info->error_number=0;
2960 if (blob_info->type != UndefinedStream)
2961 blob_info->size=GetBlobSize(image);
2964 ThrowFileException(exception,BlobError,
"UnableToOpenBlob",filename);
2965 return(MagickFalse);
3004#if defined(__cplusplus) || defined(c_plusplus)
3008static size_t PingStream(
const Image *magick_unused(image),
3009 const void *magick_unused(pixels),
const size_t columns)
3011 magick_unreferenced(image);
3012 magick_unreferenced(pixels);
3017#if defined(__cplusplus) || defined(c_plusplus)
3021MagickExport
Image *PingBlob(
const ImageInfo *image_info,
const void *blob,
3037 assert(image_info != (
ImageInfo *) NULL);
3038 assert(image_info->signature == MagickCoreSignature);
3040 if (IsEventLogging() != MagickFalse)
3041 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",
3042 image_info->filename);
3043 if ((blob == (
const void *) NULL) || (length == 0))
3045 (void) ThrowMagickException(exception,GetMagickModule(),BlobError,
3046 "ZeroLengthBlobNotPermitted",
"`%s'",image_info->filename);
3047 return((
Image *) NULL);
3049 ping_info=CloneImageInfo(image_info);
3050 ping_info->blob=(
void *) blob;
3051 ping_info->length=length;
3052 ping_info->ping=MagickTrue;
3053 if (*ping_info->magick ==
'\0')
3054 (void) SetImageInfo(ping_info,0,exception);
3055 magick_info=GetMagickInfo(ping_info->magick,exception);
3056 if (magick_info == (
const MagickInfo *) NULL)
3058 (void) ThrowMagickException(exception,GetMagickModule(),
3059 MissingDelegateError,
"NoDecodeDelegateForThisImageFormat",
"`%s'",
3061 ping_info=DestroyImageInfo(ping_info);
3062 return((
Image *) NULL);
3064 if (GetMagickBlobSupport(magick_info) != MagickFalse)
3067 filename[MagickPathExtent];
3072 (void) CopyMagickString(filename,ping_info->filename,MagickPathExtent);
3073 (void) FormatLocaleString(ping_info->filename,MagickPathExtent,
"%s:%s",
3074 ping_info->magick,filename);
3075 image=ReadStream(ping_info,&PingStream,exception);
3076 if (image != (
Image *) NULL)
3077 (void) DetachBlob(image->blob);
3078 ping_info=DestroyImageInfo(ping_info);
3084 ping_info->blob=(
void *) NULL;
3085 ping_info->length=0;
3086 *ping_info->filename=
'\0';
3087 status=BlobToFile(ping_info->filename,blob,length,exception);
3088 if (status == MagickFalse)
3090 (void) RelinquishUniqueFileResource(ping_info->filename);
3091 ping_info=DestroyImageInfo(ping_info);
3092 return((
Image *) NULL);
3094 clone_info=CloneImageInfo(ping_info);
3095 (void) FormatLocaleString(clone_info->filename,MagickPathExtent,
"%s:%s",
3096 ping_info->magick,ping_info->filename);
3097 image=ReadStream(clone_info,&PingStream,exception);
3098 if (image != (
Image *) NULL)
3106 for (images=GetFirstImageInList(image); images != (
Image *) NULL; )
3108 (void) CopyMagickString(images->filename,image_info->filename,
3110 (void) CopyMagickString(images->magick_filename,image_info->filename,
3112 (void) CopyMagickString(images->magick,magick_info->name,
3114 images=GetNextImageInList(images);
3117 clone_info=DestroyImageInfo(clone_info);
3118 (void) RelinquishUniqueFileResource(ping_info->filename);
3119 ping_info=DestroyImageInfo(ping_info);
3154MagickExport ssize_t ReadBlob(
Image *image,
const size_t length,
3155 unsigned char *data)
3158 *magick_restrict blob_info;
3169 assert(image != (
Image *) NULL);
3170 assert(image->signature == MagickCoreSignature);
3171 assert(image->blob != (
BlobInfo *) NULL);
3172 assert(image->blob->type != UndefinedStream);
3175 assert(data != (
void *) NULL);
3176 blob_info=image->blob;
3179 switch (blob_info->type)
3181 case UndefinedStream:
3183 case StandardStream:
3191 count=(ssize_t) fread(q,1,length,blob_info->file_info.file);
3196 c=getc(blob_info->file_info.file);
3199 *q++=(
unsigned char) c;
3205 c=getc(blob_info->file_info.file);
3208 *q++=(
unsigned char) c;
3214 c=getc(blob_info->file_info.file);
3217 *q++=(
unsigned char) c;
3223 c=getc(blob_info->file_info.file);
3226 *q++=(
unsigned char) c;
3233 if ((count != (ssize_t) length) &&
3234 (ferror(blob_info->file_info.file) != 0))
3235 ThrowBlobException(blob_info);
3240#if defined(MAGICKCORE_ZLIB_DELEGATE)
3251 for (i=0; i < (ssize_t) length; i+=count)
3253 count=(ssize_t) gzread(blob_info->file_info.gzfile,q+i,
3254 (
unsigned int) MagickMin(length-i,MagickMaxBufferExtent));
3267 c=gzgetc(blob_info->file_info.gzfile);
3270 *q++=(
unsigned char) c;
3276 c=gzgetc(blob_info->file_info.gzfile);
3279 *q++=(
unsigned char) c;
3285 c=gzgetc(blob_info->file_info.gzfile);
3288 *q++=(
unsigned char) c;
3294 c=gzgetc(blob_info->file_info.gzfile);
3297 *q++=(
unsigned char) c;
3305 (void) gzerror(blob_info->file_info.gzfile,&status);
3306 if ((count != (ssize_t) length) && (status != Z_OK))
3307 ThrowBlobException(blob_info);
3308 if (blob_info->eof == MagickFalse)
3309 blob_info->eof=gzeof(blob_info->file_info.gzfile) != 0 ? MagickTrue :
3316#if defined(MAGICKCORE_BZLIB_DELEGATE)
3323 for (i=0; i < (ssize_t) length; i+=count)
3325 count=(ssize_t) BZ2_bzread(blob_info->file_info.bzfile,q+i,
3326 (
unsigned int) MagickMin(length-i,MagickMaxBufferExtent));
3336 (void) BZ2_bzerror(blob_info->file_info.bzfile,&status);
3337 if ((count != (ssize_t) length) && (status != BZ_OK))
3338 ThrowBlobException(blob_info);
3349 if (blob_info->offset >= (MagickOffsetType) blob_info->length)
3351 blob_info->eof=MagickTrue;
3354 p=blob_info->data+blob_info->offset;
3355 count=(ssize_t) MagickMin((MagickOffsetType) length,(MagickOffsetType)
3356 blob_info->length-blob_info->offset);
3357 blob_info->offset+=count;
3358 if (count != (ssize_t) length)
3359 blob_info->eof=MagickTrue;
3360 (void) memcpy(q,p,(
size_t) count);
3389MagickExport
int ReadBlobByte(
Image *image)
3392 *magick_restrict blob_info;
3397 assert(image != (
Image *) NULL);
3398 assert(image->signature == MagickCoreSignature);
3399 assert(image->blob != (
BlobInfo *) NULL);
3400 assert(image->blob->type != UndefinedStream);
3401 blob_info=image->blob;
3402 switch (blob_info->type)
3404 case StandardStream:
3408 c=getc(blob_info->file_info.file);
3411 if (ferror(blob_info->file_info.file) != 0)
3412 ThrowBlobException(blob_info);
3419 if (blob_info->offset >= (MagickOffsetType) blob_info->length)
3421 blob_info->eof=MagickTrue;
3424 c=(int) (*((
unsigned char *) blob_info->data+blob_info->offset));
3425 blob_info->offset++;
3436 count=ReadBlob(image,1,buffer);
3469MagickExport
double ReadBlobDouble(
Image *image)
3480 quantum.double_value=0.0;
3481 quantum.unsigned_value=ReadBlobLongLong(image);
3482 return(quantum.double_value);
3508MagickExport
float ReadBlobFloat(
Image *image)
3519 quantum.float_value=0.0;
3520 quantum.unsigned_value=ReadBlobLong(image);
3521 return(quantum.float_value);
3547MagickExport
unsigned int ReadBlobLong(
Image *image)
3561 assert(image != (
Image *) NULL);
3562 assert(image->signature == MagickCoreSignature);
3564 p=(
const unsigned char *) ReadBlobStream(image,4,buffer,&count);
3567 if (image->endian == LSBEndian)
3569 value=(
unsigned int) (*p++);
3570 value|=(
unsigned int) (*p++) << 8;
3571 value|=(
unsigned int) (*p++) << 16;
3572 value|=(
unsigned int) (*p++) << 24;
3575 value=(
unsigned int) (*p++) << 24;
3576 value|=(
unsigned int) (*p++) << 16;
3577 value|=(
unsigned int) (*p++) << 8;
3578 value|=(
unsigned int) (*p++);
3605MagickExport MagickSizeType ReadBlobLongLong(
Image *image)
3619 assert(image != (
Image *) NULL);
3620 assert(image->signature == MagickCoreSignature);
3622 p=(
const unsigned char *) ReadBlobStream(image,8,buffer,&count);
3624 return(MagickULLConstant(0));
3625 if (image->endian == LSBEndian)
3627 value=(MagickSizeType) (*p++);
3628 value|=(MagickSizeType) (*p++) << 8;
3629 value|=(MagickSizeType) (*p++) << 16;
3630 value|=(MagickSizeType) (*p++) << 24;
3631 value|=(MagickSizeType) (*p++) << 32;
3632 value|=(MagickSizeType) (*p++) << 40;
3633 value|=(MagickSizeType) (*p++) << 48;
3634 value|=(MagickSizeType) (*p++) << 56;
3637 value=(MagickSizeType) (*p++) << 56;
3638 value|=(MagickSizeType) (*p++) << 48;
3639 value|=(MagickSizeType) (*p++) << 40;
3640 value|=(MagickSizeType) (*p++) << 32;
3641 value|=(MagickSizeType) (*p++) << 24;
3642 value|=(MagickSizeType) (*p++) << 16;
3643 value|=(MagickSizeType) (*p++) << 8;
3644 value|=(MagickSizeType) (*p++);
3671MagickExport
unsigned short ReadBlobShort(
Image *image)
3685 assert(image != (
Image *) NULL);
3686 assert(image->signature == MagickCoreSignature);
3688 p=(
const unsigned char *) ReadBlobStream(image,2,buffer,&count);
3690 return((
unsigned short) 0U);
3691 if (image->endian == LSBEndian)
3693 value=(
unsigned short) (*p++);
3694 value|=(
unsigned short) (*p++) << 8;
3697 value=(
unsigned short) ((
unsigned short) (*p++) << 8);
3698 value|=(
unsigned short) (*p++);
3725MagickExport
unsigned int ReadBlobLSBLong(
Image *image)
3739 assert(image != (
Image *) NULL);
3740 assert(image->signature == MagickCoreSignature);
3742 p=(
const unsigned char *) ReadBlobStream(image,4,buffer,&count);
3745 value=(
unsigned int) (*p++);
3746 value|=(
unsigned int) (*p++) << 8;
3747 value|=(
unsigned int) (*p++) << 16;
3748 value|=(
unsigned int) (*p++) << 24;
3775MagickExport
signed int ReadBlobLSBSignedLong(
Image *image)
3786 quantum.unsigned_value=ReadBlobLSBLong(image);
3787 return(quantum.signed_value);
3813MagickExport
unsigned short ReadBlobLSBShort(
Image *image)
3827 assert(image != (
Image *) NULL);
3828 assert(image->signature == MagickCoreSignature);
3830 p=(
const unsigned char *) ReadBlobStream(image,2,buffer,&count);
3832 return((
unsigned short) 0U);
3833 value=(
unsigned short) (*p++);
3834 value|=(
unsigned short) (*p++) << 8;
3861MagickExport
signed short ReadBlobLSBSignedShort(
Image *image)
3872 quantum.unsigned_value=ReadBlobLSBShort(image);
3873 return(quantum.signed_value);
3899MagickExport
unsigned int ReadBlobMSBLong(
Image *image)
3913 assert(image != (
Image *) NULL);
3914 assert(image->signature == MagickCoreSignature);
3916 p=(
const unsigned char *) ReadBlobStream(image,4,buffer,&count);
3919 value=(
unsigned int) (*p++) << 24;
3920 value|=(
unsigned int) (*p++) << 16;
3921 value|=(
unsigned int) (*p++) << 8;
3922 value|=(
unsigned int) (*p++);
3949MagickExport MagickSizeType ReadBlobMSBLongLong(
Image *image)
3963 assert(image != (
Image *) NULL);
3964 assert(image->signature == MagickCoreSignature);
3966 p=(
const unsigned char *) ReadBlobStream(image,8,buffer,&count);
3968 return(MagickULLConstant(0));
3969 value=(MagickSizeType) (*p++) << 56;
3970 value|=(MagickSizeType) (*p++) << 48;
3971 value|=(MagickSizeType) (*p++) << 40;
3972 value|=(MagickSizeType) (*p++) << 32;
3973 value|=(MagickSizeType) (*p++) << 24;
3974 value|=(MagickSizeType) (*p++) << 16;
3975 value|=(MagickSizeType) (*p++) << 8;
3976 value|=(MagickSizeType) (*p++);
4003MagickExport
unsigned short ReadBlobMSBShort(
Image *image)
4017 assert(image != (
Image *) NULL);
4018 assert(image->signature == MagickCoreSignature);
4020 p=(
const unsigned char *) ReadBlobStream(image,2,buffer,&count);
4022 return((
unsigned short) 0U);
4023 value=(
unsigned short) ((*p++) << 8);
4024 value|=(
unsigned short) (*p++);
4051MagickExport
signed int ReadBlobMSBSignedLong(
Image *image)
4062 quantum.unsigned_value=ReadBlobMSBLong(image);
4063 return(quantum.signed_value);
4089MagickExport
signed short ReadBlobMSBSignedShort(
Image *image)
4100 quantum.unsigned_value=ReadBlobMSBShort(image);
4101 return(quantum.signed_value);
4127MagickExport
signed int ReadBlobSignedLong(
Image *image)
4138 quantum.unsigned_value=ReadBlobLong(image);
4139 return(quantum.signed_value);
4165MagickExport
signed short ReadBlobSignedShort(
Image *image)
4176 quantum.unsigned_value=ReadBlobShort(image);
4177 return(quantum.signed_value);
4215MagickExport magick_hot_spot
const void *ReadBlobStream(
Image *image,
4216 const size_t length,
void *magick_restrict data,ssize_t *count)
4219 *magick_restrict blob_info;
4221 assert(image != (
Image *) NULL);
4222 assert(image->signature == MagickCoreSignature);
4223 assert(image->blob != (
BlobInfo *) NULL);
4224 assert(image->blob->type != UndefinedStream);
4225 assert(count != (ssize_t *) NULL);
4226 blob_info=image->blob;
4227 if (blob_info->type != BlobStream)
4229 assert(data != NULL);
4230 *count=ReadBlob(image,length,(
unsigned char *) data);
4233 if (blob_info->offset >= (MagickOffsetType) blob_info->length)
4236 blob_info->eof=MagickTrue;
4239 data=blob_info->data+blob_info->offset;
4240 *count=(ssize_t) MagickMin((MagickOffsetType) length,(MagickOffsetType)
4241 blob_info->length-blob_info->offset);
4242 blob_info->offset+=(*count);
4243 if (*count != (ssize_t) length)
4244 blob_info->eof=MagickTrue;
4273MagickExport
char *ReadBlobString(
Image *image,
char *
string)
4276 *magick_restrict blob_info;
4284 assert(image != (
Image *) NULL);
4285 assert(image->signature == MagickCoreSignature);
4286 assert(image->blob != (
BlobInfo *) NULL);
4287 assert(image->blob->type != UndefinedStream);
4288 if (IsEventLogging() != MagickFalse)
4289 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4291 blob_info=image->blob;
4292 switch (blob_info->type)
4294 case UndefinedStream:
4296 case StandardStream:
4299 char *p = fgets(
string,MagickPathExtent,blob_info->file_info.file);
4300 if (p == (
char *) NULL)
4302 if (ferror(blob_info->file_info.file) != 0)
4303 ThrowBlobException(blob_info);
4304 return((
char *) NULL);
4311#if defined(MAGICKCORE_ZLIB_DELEGATE)
4312 char *p = gzgets(blob_info->file_info.gzfile,
string,MagickPathExtent);
4313 if (p == (
char *) NULL)
4316 (void) gzerror(blob_info->file_info.gzfile,&status);
4318 ThrowBlobException(blob_info);
4319 return((
char *) NULL);
4329 c=ReadBlobByte(image);
4332 blob_info->eof=MagickTrue;
4338 }
while (i < (MaxTextExtent-2));
4346 if ((
string[i] ==
'\r') || (
string[i] ==
'\n'))
4349 if ((
string[i-1] ==
'\r') || (
string[i-1] ==
'\n'))
4351 if ((*
string ==
'\0') && (blob_info->eof != MagickFalse))
4352 return((
char *) NULL);
4382 assert(blob->signature == MagickCoreSignature);
4383 if (IsEventLogging() != MagickFalse)
4384 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
4385 LockSemaphoreInfo(blob->semaphore);
4386 blob->reference_count++;
4387 UnlockSemaphoreInfo(blob->semaphore);
4424MagickExport MagickOffsetType SeekBlob(
Image *image,
4425 const MagickOffsetType offset,
const int whence)
4428 *magick_restrict blob_info;
4430 assert(image != (
Image *) NULL);
4431 assert(image->signature == MagickCoreSignature);
4432 assert(image->blob != (
BlobInfo *) NULL);
4433 assert(image->blob->type != UndefinedStream);
4434 if (IsEventLogging() != MagickFalse)
4435 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4436 blob_info=image->blob;
4437 switch (blob_info->type)
4439 case UndefinedStream:
4441 case StandardStream:
4446 if ((offset < 0) && (whence == SEEK_SET))
4448 if (fseek(blob_info->file_info.file,offset,whence) < 0)
4450 blob_info->offset=TellBlob(image);
4455#if defined(MAGICKCORE_ZLIB_DELEGATE)
4456 if (gzseek(blob_info->file_info.gzfile,offset,whence) < 0)
4459 blob_info->offset=TellBlob(image);
4475 blob_info->offset=offset;
4480 if (((offset > 0) && (blob_info->offset > (MAGICK_SSIZE_MAX-offset))) ||
4481 ((offset < 0) && (blob_info->offset < (MAGICK_SSIZE_MIN-offset))))
4486 if ((blob_info->offset+offset) < 0)
4488 blob_info->offset+=offset;
4493 if (((MagickOffsetType) blob_info->length+offset) < 0)
4495 blob_info->offset=blob_info->length+offset;
4499 if (blob_info->offset < (MagickOffsetType) ((off_t) blob_info->length))
4501 blob_info->eof=MagickFalse;
4504 if (blob_info->offset >= (MagickOffsetType) ((off_t) blob_info->extent))
4509 return(blob_info->offset);
4537MagickExport
void SetBlobExempt(
Image *image,
const MagickBooleanType exempt)
4539 assert(image != (
const Image *) NULL);
4540 assert(image->signature == MagickCoreSignature);
4541 if (IsEventLogging() != MagickFalse)
4542 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4543 image->blob->exempt=exempt;
4572MagickExport MagickBooleanType SetBlobExtent(
Image *image,
4573 const MagickSizeType extent)
4576 *magick_restrict blob_info;
4578 assert(image != (
Image *) NULL);
4579 assert(image->signature == MagickCoreSignature);
4580 assert(image->blob != (
BlobInfo *) NULL);
4581 assert(image->blob->type != UndefinedStream);
4582 if (IsEventLogging() != MagickFalse)
4583 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4584 blob_info=image->blob;
4585 switch (blob_info->type)
4587 case UndefinedStream:
4589 case StandardStream:
4590 return(MagickFalse);
4599 if (extent != (MagickSizeType) ((off_t) extent))
4600 return(MagickFalse);
4601 offset=SeekBlob(image,0,SEEK_END);
4603 return(MagickFalse);
4604 if ((MagickSizeType) offset >= extent)
4606 offset=SeekBlob(image,(MagickOffsetType) extent-1,SEEK_SET);
4609 count=(ssize_t) fwrite((
const unsigned char *)
"",1,1,
4610 blob_info->file_info.file);
4611#if defined(MAGICKCORE_HAVE_POSIX_FALLOCATE)
4612 if (blob_info->synchronize != MagickFalse)
4617 file=fileno(blob_info->file_info.file);
4618 if ((file == -1) || (offset < 0))
4619 return(MagickFalse);
4620 (void) posix_fallocate(file,offset,extent-offset);
4623 offset=SeekBlob(image,offset,SEEK_SET);
4625 return(MagickFalse);
4630 return(MagickFalse);
4632 return(MagickFalse);
4634 return(MagickFalse);
4637 if (extent != (MagickSizeType) ((
size_t) extent))
4638 return(MagickFalse);
4639 if (blob_info->mapped != MagickFalse)
4647 (void) UnmapBlob(blob_info->data,blob_info->length);
4648 RelinquishMagickResource(MapResource,blob_info->length);
4649 if (extent != (MagickSizeType) ((off_t) extent))
4650 return(MagickFalse);
4651 offset=SeekBlob(image,0,SEEK_END);
4653 return(MagickFalse);
4654 if ((MagickSizeType) offset >= extent)
4656 offset=SeekBlob(image,(MagickOffsetType) extent-1,SEEK_SET);
4657 count=(ssize_t) fwrite((
const unsigned char *)
"",1,1,
4658 blob_info->file_info.file);
4659#if defined(MAGICKCORE_HAVE_POSIX_FALLOCATE)
4660 if (blob_info->synchronize != MagickFalse)
4665 file=fileno(blob_info->file_info.file);
4666 if ((file == -1) || (offset < 0))
4667 return(MagickFalse);
4668 (void) posix_fallocate(file,offset,extent-offset);
4671 offset=SeekBlob(image,offset,SEEK_SET);
4673 return(MagickFalse);
4674 (void) AcquireMagickResource(MapResource,extent);
4675 blob_info->data=(
unsigned char*) MapBlob(fileno(
4676 blob_info->file_info.file),WriteMode,0,(size_t) extent);
4677 blob_info->extent=(size_t) extent;
4678 blob_info->length=(size_t) extent;
4679 (void) SyncBlob(image);
4682 blob_info->extent=(size_t) extent;
4683 blob_info->data=(
unsigned char *) ResizeQuantumMemory(blob_info->data,
4684 blob_info->extent+1,
sizeof(*blob_info->data));
4685 (void) SyncBlob(image);
4686 if (blob_info->data == (
unsigned char *) NULL)
4688 (void) DetachBlob(blob_info);
4689 return(MagickFalse);
4720static int SyncBlob(
Image *image)
4723 *magick_restrict blob_info;
4728 assert(image != (
Image *) NULL);
4729 assert(image->signature == MagickCoreSignature);
4730 assert(image->blob != (
BlobInfo *) NULL);
4731 assert(image->blob->type != UndefinedStream);
4732 if (IsEventLogging() != MagickFalse)
4733 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4734 blob_info=image->blob;
4736 switch (blob_info->type)
4738 case UndefinedStream:
4739 case StandardStream:
4744 status=fflush(blob_info->file_info.file);
4749#if defined(MAGICKCORE_ZLIB_DELEGATE)
4750 status=gzflush(blob_info->file_info.gzfile,Z_SYNC_FLUSH);
4756#if defined(MAGICKCORE_BZLIB_DELEGATE)
4757 status=BZ2_bzflush(blob_info->file_info.bzfile);
4791MagickExport MagickOffsetType TellBlob(
const Image *image)
4794 *magick_restrict blob_info;
4799 assert(image != (
Image *) NULL);
4800 assert(image->signature == MagickCoreSignature);
4801 assert(image->blob != (
BlobInfo *) NULL);
4802 assert(image->blob->type != UndefinedStream);
4803 if (IsEventLogging() != MagickFalse)
4804 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4805 blob_info=image->blob;
4807 switch (blob_info->type)
4809 case UndefinedStream:
4810 case StandardStream:
4814 offset=ftell(blob_info->file_info.file);
4821#if defined(MAGICKCORE_ZLIB_DELEGATE)
4822 offset=(MagickOffsetType) gztell(blob_info->file_info.gzfile);
4832 offset=blob_info->offset;
4864MagickExport MagickBooleanType UnmapBlob(
void *map,
const size_t length)
4866#if defined(MAGICKCORE_HAVE_MMAP)
4870 status=munmap(map,length);
4871 return(status == -1 ? MagickFalse : MagickTrue);
4875 return(MagickFalse);
4908MagickExport ssize_t WriteBlob(
Image *image,
const size_t length,
4909 const unsigned char *data)
4912 *magick_restrict blob_info;
4926 assert(image != (
Image *) NULL);
4927 assert(image->signature == MagickCoreSignature);
4928 assert(image->blob != (
BlobInfo *) NULL);
4929 assert(image->blob->type != UndefinedStream);
4932 assert(data != (
const unsigned char *) NULL);
4933 blob_info=image->blob;
4935 p=(
const unsigned char *) data;
4936 q=(
unsigned char *) data;
4937 switch (blob_info->type)
4939 case UndefinedStream:
4941 case StandardStream:
4949 count=(ssize_t) fwrite((
const char *) data,1,length,
4950 blob_info->file_info.file);
4955 c=putc((
int) *p++,blob_info->file_info.file);
4963 c=putc((
int) *p++,blob_info->file_info.file);
4971 c=putc((
int) *p++,blob_info->file_info.file);
4979 c=putc((
int) *p++,blob_info->file_info.file);
4988 if ((count != (ssize_t) length) &&
4989 (ferror(blob_info->file_info.file) != 0))
4990 ThrowBlobException(blob_info);
4995#if defined(MAGICKCORE_ZLIB_DELEGATE)
5006 for (i=0; i < (ssize_t) length; i+=count)
5008 count=(ssize_t) gzwrite(blob_info->file_info.gzfile,q+i,
5009 (
unsigned int) MagickMin(length-i,MagickMaxBufferExtent));
5022 c=gzputc(blob_info->file_info.gzfile,(
int) *p++);
5030 c=gzputc(blob_info->file_info.gzfile,(
int) *p++);
5038 c=gzputc(blob_info->file_info.gzfile,(
int) *p++);
5046 c=gzputc(blob_info->file_info.gzfile,(
int) *p++);
5056 (void) gzerror(blob_info->file_info.gzfile,&status);
5057 if ((count != (ssize_t) length) && (status != Z_OK))
5058 ThrowBlobException(blob_info);
5064#if defined(MAGICKCORE_BZLIB_DELEGATE)
5071 for (i=0; i < (ssize_t) length; i+=count)
5073 count=(ssize_t) BZ2_bzwrite(blob_info->file_info.bzfile,q+i,
5074 (
int) MagickMin(length-i,MagickMaxBufferExtent));
5084 (void) BZ2_bzerror(blob_info->file_info.bzfile,&status);
5085 if ((count != (ssize_t) length) && (status != BZ_OK))
5086 ThrowBlobException(blob_info);
5092 count=(ssize_t) blob_info->stream(image,data,length);
5097 if ((blob_info->offset+(MagickOffsetType) length) >=
5098 (MagickOffsetType) blob_info->extent)
5100 if (blob_info->mapped != MagickFalse)
5102 blob_info->extent+=length+blob_info->quantum;
5103 blob_info->quantum<<=1;
5104 blob_info->data=(
unsigned char *) ResizeQuantumMemory(
5105 blob_info->data,blob_info->extent+1,
sizeof(*blob_info->data));
5106 (void) SyncBlob(image);
5107 if (blob_info->data == (
unsigned char *) NULL)
5109 (void) DetachBlob(blob_info);
5113 q=blob_info->data+blob_info->offset;
5114 (void) memcpy(q,p,length);
5115 blob_info->offset+=length;
5116 if (blob_info->offset >= (MagickOffsetType) blob_info->length)
5117 blob_info->length=(
size_t) blob_info->offset;
5118 count=(ssize_t) length;
5121 if (count != (ssize_t) length)
5122 ThrowBlobException(blob_info);
5151MagickExport ssize_t WriteBlobByte(
Image *image,
const unsigned char value)
5154 *magick_restrict blob_info;
5159 assert(image != (
Image *) NULL);
5160 assert(image->signature == MagickCoreSignature);
5161 assert(image->blob != (
BlobInfo *) NULL);
5162 assert(image->blob->type != UndefinedStream);
5163 blob_info=image->blob;
5165 switch (blob_info->type)
5167 case StandardStream:
5174 c=putc((
int) value,blob_info->file_info.file);
5177 if (ferror(blob_info->file_info.file) != 0)
5178 ThrowBlobException(blob_info);
5186 count=WriteBlobStream(image,1,&value);
5218MagickExport ssize_t WriteBlobFloat(
Image *image,
const float value)
5229 quantum.unsigned_value=0U;
5230 quantum.float_value=value;
5231 return(WriteBlobLong(image,quantum.unsigned_value));
5259MagickExport ssize_t WriteBlobLong(
Image *image,
const unsigned int value)
5264 assert(image != (
Image *) NULL);
5265 assert(image->signature == MagickCoreSignature);
5266 if (image->endian == LSBEndian)
5268 buffer[0]=(
unsigned char) value;
5269 buffer[1]=(
unsigned char) (value >> 8);
5270 buffer[2]=(
unsigned char) (value >> 16);
5271 buffer[3]=(
unsigned char) (value >> 24);
5272 return(WriteBlobStream(image,4,buffer));
5274 buffer[0]=(
unsigned char) (value >> 24);
5275 buffer[1]=(
unsigned char) (value >> 16);
5276 buffer[2]=(
unsigned char) (value >> 8);
5277 buffer[3]=(
unsigned char) value;
5278 return(WriteBlobStream(image,4,buffer));
5306MagickExport ssize_t WriteBlobShort(
Image *image,
const unsigned short value)
5311 assert(image != (
Image *) NULL);
5312 assert(image->signature == MagickCoreSignature);
5313 if (image->endian == LSBEndian)
5315 buffer[0]=(
unsigned char) value;
5316 buffer[1]=(
unsigned char) (value >> 8);
5317 return(WriteBlobStream(image,2,buffer));
5319 buffer[0]=(
unsigned char) (value >> 8);
5320 buffer[1]=(
unsigned char) value;
5321 return(WriteBlobStream(image,2,buffer));
5349MagickExport ssize_t WriteBlobLSBLong(
Image *image,
const unsigned int value)
5354 assert(image != (
Image *) NULL);
5355 assert(image->signature == MagickCoreSignature);
5356 buffer[0]=(
unsigned char) value;
5357 buffer[1]=(
unsigned char) (value >> 8);
5358 buffer[2]=(
unsigned char) (value >> 16);
5359 buffer[3]=(
unsigned char) (value >> 24);
5360 return(WriteBlobStream(image,4,buffer));
5388MagickExport ssize_t WriteBlobLSBShort(
Image *image,
const unsigned short value)
5393 assert(image != (
Image *) NULL);
5394 assert(image->signature == MagickCoreSignature);
5395 buffer[0]=(
unsigned char) value;
5396 buffer[1]=(
unsigned char) (value >> 8);
5397 return(WriteBlobStream(image,2,buffer));
5425MagickExport ssize_t WriteBlobLSBSignedLong(
Image *image,
const signed int value)
5439 assert(image != (
Image *) NULL);
5440 assert(image->signature == MagickCoreSignature);
5441 quantum.signed_value=value;
5442 buffer[0]=(
unsigned char) quantum.unsigned_value;
5443 buffer[1]=(
unsigned char) (quantum.unsigned_value >> 8);
5444 buffer[2]=(
unsigned char) (quantum.unsigned_value >> 16);
5445 buffer[3]=(
unsigned char) (quantum.unsigned_value >> 24);
5446 return(WriteBlobStream(image,4,buffer));
5474MagickExport ssize_t WriteBlobLSBSignedShort(
Image *image,
5475 const signed short value)
5489 assert(image != (
Image *) NULL);
5490 assert(image->signature == MagickCoreSignature);
5491 quantum.signed_value=value;
5492 buffer[0]=(
unsigned char) quantum.unsigned_value;
5493 buffer[1]=(
unsigned char) (quantum.unsigned_value >> 8);
5494 return(WriteBlobStream(image,2,buffer));
5522MagickExport ssize_t WriteBlobMSBLong(
Image *image,
const unsigned int value)
5527 assert(image != (
Image *) NULL);
5528 assert(image->signature == MagickCoreSignature);
5529 buffer[0]=(
unsigned char) (value >> 24);
5530 buffer[1]=(
unsigned char) (value >> 16);
5531 buffer[2]=(
unsigned char) (value >> 8);
5532 buffer[3]=(
unsigned char) value;
5533 return(WriteBlobStream(image,4,buffer));
5561MagickExport ssize_t WriteBlobMSBLongLong(
Image *image,
5562 const MagickSizeType value)
5567 assert(image != (
Image *) NULL);
5568 assert(image->signature == MagickCoreSignature);
5569 buffer[0]=(
unsigned char) (value >> 56);
5570 buffer[1]=(
unsigned char) (value >> 48);
5571 buffer[2]=(
unsigned char) (value >> 40);
5572 buffer[3]=(
unsigned char) (value >> 32);
5573 buffer[4]=(
unsigned char) (value >> 24);
5574 buffer[5]=(
unsigned char) (value >> 16);
5575 buffer[6]=(
unsigned char) (value >> 8);
5576 buffer[7]=(
unsigned char) value;
5577 return(WriteBlobStream(image,8,buffer));
5605MagickExport ssize_t WriteBlobMSBShort(
Image *image,
const unsigned short value)
5610 assert(image != (
Image *) NULL);
5611 assert(image->signature == MagickCoreSignature);
5612 buffer[0]=(
unsigned char) (value >> 8);
5613 buffer[1]=(
unsigned char) value;
5614 return(WriteBlobStream(image,2,buffer));
5642MagickExport ssize_t WriteBlobMSBSignedLong(
Image *image,
const signed int value)
5656 assert(image != (
Image *) NULL);
5657 assert(image->signature == MagickCoreSignature);
5658 quantum.signed_value=value;
5659 buffer[0]=(
unsigned char) (quantum.unsigned_value >> 24);
5660 buffer[1]=(
unsigned char) (quantum.unsigned_value >> 16);
5661 buffer[2]=(
unsigned char) (quantum.unsigned_value >> 8);
5662 buffer[3]=(
unsigned char) quantum.unsigned_value;
5663 return(WriteBlobStream(image,4,buffer));
5691MagickExport ssize_t WriteBlobMSBSignedShort(
Image *image,
5692 const signed short value)
5706 assert(image != (
Image *) NULL);
5707 assert(image->signature == MagickCoreSignature);
5708 quantum.signed_value=value;
5709 buffer[0]=(
unsigned char) (quantum.unsigned_value >> 8);
5710 buffer[1]=(
unsigned char) quantum.unsigned_value;
5711 return(WriteBlobStream(image,2,buffer));
5739MagickExport ssize_t WriteBlobString(
Image *image,
const char *
string)
5741 assert(image != (
Image *) NULL);
5742 assert(image->signature == MagickCoreSignature);
5743 assert(
string != (
const char *) NULL);
5744 return(WriteBlobStream(image,strlen(
string),(
const unsigned char *)
string));