/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M M AAA GGGG IIIII CCCC %
% MM MM A A G I C %
% M M M AAAAA G GGG I C %
% M M A A G G I C %
% M M A A GGGG IIIII CCCC %
% %
% %
% MagickCore Image Magic Methods %
% %
% Software Design %
% Bob Friesenhahn %
% July 2000 %
% %
% %
% Copyright 1999-2019 ImageMagick Studio LLC, a non-profit organization %
% dedicated to making software imaging solutions freely available. %
% %
% You may not use this file except in compliance with the License. You may %
% obtain a copy of the License at %
% %
% https://imagemagick.org/script/license.php %
% %
% Unless required by applicable law or agreed to in writing, software %
% distributed under the License is distributed on an "AS IS" BASIS, %
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
% See the License for the specific language governing permissions and %
% limitations under the License. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/
/*
Include declarations.
*/
#include "MagickCore/studio.h"
#include "MagickCore/blob.h"
#include "MagickCore/client.h"
#include "MagickCore/configure.h"
#include "MagickCore/configure-private.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/linked-list.h"
#include "MagickCore/magic.h"
#include "MagickCore/magic-private.h"
#include "MagickCore/memory_.h"
#include "MagickCore/memory-private.h"
#include "MagickCore/semaphore.h"
#include "MagickCore/string_.h"
#include "MagickCore/string-private.h"
#include "MagickCore/token.h"
#include "MagickCore/utility.h"
#include "MagickCore/utility-private.h"
#include "coders/coders.h"
/*
Define declarations.
*/
#define AddMagickCoder(coder) Magick ## coder ## Headers
/*
Typedef declarations.
*/
typedef struct _MagicMapInfo
{
const char
*name;
const MagickOffsetType
offset;
const unsigned char
*magic;
const size_t
length;
} MagicMapInfo;
struct _MagicInfo
{
char
*path,
*name,
*target;
unsigned char
*magic;
size_t
length;
MagickOffsetType
offset;
MagickBooleanType
exempt,
stealth;
size_t
signature;
};
/*
Static declarations.
*/
static const MagicMapInfo
MagicMap[] =
{
#include "coders/coders-list.h"
MagickCoderHeader("CGM", 0, "BEGMF")
MagickCoderHeader("FIG", 0, "#FIG")
MagickCoderHeader("HPGL", 0, "IN;")
MagickCoderHeader("ILBM", 8, "ILBM")
};
static LinkedListInfo
*magic_cache = (LinkedListInfo *) NULL,
*magic_list = (LinkedListInfo *) NULL;
static SemaphoreInfo
*magic_cache_semaphore = (SemaphoreInfo *) NULL,
*magic_list_semaphore = (SemaphoreInfo *) NULL;
/*
Forward declarations.
*/
static MagickBooleanType
IsMagicListInstantiated(ExceptionInfo *);
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% A c q u i r e M a g i c L i s t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% AcquireMagicList() caches one or more magic configurations which provides a
% mapping between magic attributes and a magic name.
%
% The format of the AcquireMagicList method is:
%
% LinkedListInfo *AcquireMagicList(ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o filename: the font file name.
%
% o exception: return any errors or warnings in this structure.
%
*/
static int CompareMagickInfoSize(const void *a,const void *b)
{
MagicInfo
*ma,
*mb;
ma=(MagicInfo *) a;
mb=(MagicInfo *) b;
if (ma->offset != mb->offset)
{
MagickOffsetType
max_offset;
/*
When the offset is near the start we first search a bit further
in the stream.
*/
max_offset=ma->offset > mb->offset ? ma->offset : mb->offset;
if (max_offset <= 10)
return((int) (mb->offset-ma->offset));
else
return((int) (ma->offset-mb->offset));
}
return((int) (mb->length-ma->length));
}
static LinkedListInfo *AcquireMagicList(ExceptionInfo *exception)
{
LinkedListInfo
*list;
MagickStatusType
status;
register ssize_t
i;
list=NewLinkedList(0);
status=MagickTrue;
/*
Load built-in magic map.
*/
for (i=0; i < (ssize_t) (sizeof(MagicMap)/sizeof(*MagicMap)); i++)
{
MagicInfo
*magic_info;
register const MagicMapInfo
*p;
p=MagicMap+i;
magic_info=(MagicInfo *) AcquireMagickMemory(sizeof(*magic_info));
if (magic_info == (MagicInfo *) NULL)
{
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",p->name);
continue;
}
(void) memset(magic_info,0,sizeof(*magic_info));
magic_info->path=(char *) "[built-in]";
magic_info->name=(char *) p->name;
magic_info->offset=p->offset;
magic_info->target=(char *) p->magic;
magic_info->magic=(unsigned char *) p->magic;
magic_info->length=p->length;
magic_info->exempt=MagickTrue;
magic_info->signature=MagickCoreSignature;
status&=InsertValueInSortedLinkedList(list,CompareMagickInfoSize,
NULL,magic_info);
if (status == MagickFalse)
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",magic_info->name);
}
return(list);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t M a g i c I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetMagicInfo() searches the magic list for the specified name and if found
% returns attributes for that magic.
%
% The format of the GetMagicInfo method is:
%
% const MagicInfo *GetMagicInfo(const unsigned char *magic,
% const size_t length,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o magic: A binary string generally representing the first few characters
% of the image file or blob.
%
% o length: the length of the binary signature.
%
% o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType IsMagicCacheInstantiated()
{
if (magic_cache == (LinkedListInfo *) NULL)
{
if (magic_cache_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&magic_cache_semaphore);
LockSemaphoreInfo(magic_cache_semaphore);
if (magic_cache == (LinkedListInfo *) NULL)
magic_cache=NewLinkedList(0);
UnlockSemaphoreInfo(magic_cache_semaphore);
}
return(magic_cache != (LinkedListInfo *) NULL ? MagickTrue : MagickFalse);
}
MagickExport const MagicInfo *GetMagicInfo(const unsigned char *magic,
const size_t length,ExceptionInfo *exception)
{
register const MagicInfo
*p;
assert(exception != (ExceptionInfo *) NULL);
if (IsMagicListInstantiated(exception) == MagickFalse)
return((const MagicInfo *) NULL);
if (IsMagicCacheInstantiated() == MagickFalse)
return((const MagicInfo *) NULL);
/*
Search for cached entries.
*/
if (magic != (const unsigned char *) NULL)
{
LockSemaphoreInfo(magic_cache_semaphore);
ResetLinkedListIterator(magic_cache);
p=(const MagicInfo *) GetNextValueInLinkedList(magic_cache);
while (p != (const MagicInfo *) NULL)
{
if (((size_t) (p->offset+p->length) <= length) &&
(memcmp(magic+p->offset,p->magic,p->length) == 0))
break;
p=(const MagicInfo *) GetNextValueInLinkedList(magic_cache);
}
UnlockSemaphoreInfo(magic_cache_semaphore);
if (p != (const MagicInfo *) NULL)
return(p);
}
/*
Search for magic tag.
*/
LockSemaphoreInfo(magic_list_semaphore);
ResetLinkedListIterator(magic_list);
p=(const MagicInfo *) GetNextValueInLinkedList(magic_list);
if (magic == (const unsigned char *) NULL)
{
UnlockSemaphoreInfo(magic_list_semaphore);
return(p);
}
while (p != (const MagicInfo *) NULL)
{
assert(p->offset >= 0);
if (((size_t) (p->offset+p->length) <= length) &&
(memcmp(magic+p->offset,p->magic,p->length) == 0))
break;
p=(const MagicInfo *) GetNextValueInLinkedList(magic_list);
}
UnlockSemaphoreInfo(magic_list_semaphore);
if (p != (const MagicInfo *) NULL)
{
LockSemaphoreInfo(magic_cache_semaphore);
InsertValueInSortedLinkedList(magic_cache,CompareMagickInfoSize,
NULL,p);
UnlockSemaphoreInfo(magic_cache_semaphore);
}
return(p);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t M a g i c P a t t e r n E x t e n t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetMagicPatternExtent() returns the the extent of the buffer that is
% required to check all the MagickInfos. It returns zero if the list is empty.
%
% The format of the GetMagicPatternExtent method is:
%
% size_t GetMagicPatternExtent(ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport size_t GetMagicPatternExtent(ExceptionInfo *exception)
{
register const MagicInfo
*p;
size_t
magickSize,
max;
static size_t
size=0;
assert(exception != (ExceptionInfo *) NULL);
if ((size != 0) || (IsMagicListInstantiated(exception) == MagickFalse))
return(size);
LockSemaphoreInfo(magic_list_semaphore);
ResetLinkedListIterator(magic_list);
max=0;
p=(const MagicInfo *) GetNextValueInLinkedList(magic_list);
while (p != (const MagicInfo *) NULL)
{
magickSize=(size_t) (p->offset+p->length);
if (magickSize > max)
max=magickSize;
p=(const MagicInfo *) GetNextValueInLinkedList(magic_list);
}
size=max;
UnlockSemaphoreInfo(magic_list_semaphore);
return(size);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t M a g i c I n f o L i s t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetMagicInfoList() returns any image aliases that match the specified
% pattern.
%
% The magic of the GetMagicInfoList function is:
%
% const MagicInfo **GetMagicInfoList(const char *pattern,
% size_t *number_aliases,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o pattern: Specifies a pointer to a text string containing a pattern.
%
% o number_aliases: This integer returns the number of aliases in the list.
%
% o exception: return any errors or warnings in this structure.
%
*/
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
static int MagicInfoCompare(const void *x,const void *y)
{
const MagicInfo
**p,
**q;
p=(const MagicInfo **) x,
q=(const MagicInfo **) y;
if (LocaleCompare((*p)->path,(*q)->path) == 0)
return(LocaleCompare((*p)->name,(*q)->name));
return(LocaleCompare((*p)->path,(*q)->path));
}
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
MagickExport const MagicInfo **GetMagicInfoList(const char *pattern,
size_t *number_aliases,ExceptionInfo *exception)
{
const MagicInfo
**aliases;
register const MagicInfo
*p;
register ssize_t
i;
/*
Allocate magic list.
*/
assert(pattern != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
assert(number_aliases != (size_t *) NULL);
*number_aliases=0;
p=GetMagicInfo((const unsigned char *) NULL,0,exception);
if (p == (const MagicInfo *) NULL)
return((const MagicInfo **) NULL);
aliases=(const MagicInfo **) AcquireQuantumMemory((size_t)
GetNumberOfElementsInLinkedList(magic_list)+1UL,sizeof(*aliases));
if (aliases == (const MagicInfo **) NULL)
return((const MagicInfo **) NULL);
/*
Generate magic list.
*/
LockSemaphoreInfo(magic_list_semaphore);
ResetLinkedListIterator(magic_list);
p=(const MagicInfo *) GetNextValueInLinkedList(magic_list);
for (i=0; p != (const MagicInfo *) NULL; )
{
if ((p->stealth == MagickFalse) &&
(GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
aliases[i++]=p;
p=(const MagicInfo *) GetNextValueInLinkedList(magic_list);
}
UnlockSemaphoreInfo(magic_list_semaphore);
qsort((void *) aliases,(size_t) i,sizeof(*aliases),MagicInfoCompare);
aliases[i]=(MagicInfo *) NULL;
*number_aliases=(size_t) i;
return(aliases);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t M a g i c L i s t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetMagicList() returns any image format aliases that match the specified
% pattern.
%
% The format of the GetMagicList function is:
%
% char **GetMagicList(const char *pattern,size_t *number_aliases,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o pattern: Specifies a pointer to a text string containing a pattern.
%
% o number_aliases: This integer returns the number of image format aliases
% in the list.
%
% o exception: return any errors or warnings in this structure.
%
*/
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
static int MagicCompare(const void *x,const void *y)
{
register const char
*p,
*q;
p=(const char *) x;
q=(const char *) y;
return(LocaleCompare(p,q));
}
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
MagickExport char **GetMagicList(const char *pattern,size_t *number_aliases,
ExceptionInfo *exception)
{
char
**aliases;
register const MagicInfo
*p;
register ssize_t
i;
/*
Allocate configure list.
*/
assert(pattern != (char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
assert(number_aliases != (size_t *) NULL);
*number_aliases=0;
p=GetMagicInfo((const unsigned char *) NULL,0,exception);
if (p == (const MagicInfo *) NULL)
return((char **) NULL);
aliases=(char **) AcquireQuantumMemory((size_t)
GetNumberOfElementsInLinkedList(magic_list)+1UL,sizeof(*aliases));
if (aliases == (char **) NULL)
return((char **) NULL);
LockSemaphoreInfo(magic_list_semaphore);
ResetLinkedListIterator(magic_list);
p=(const MagicInfo *) GetNextValueInLinkedList(magic_list);
for (i=0; p != (const MagicInfo *) NULL; )
{
if ((p->stealth == MagickFalse) &&
(GlobExpression(p->name,pattern,MagickFalse) != MagickFalse))
aliases[i++]=ConstantString(p->name);
p=(const MagicInfo *) GetNextValueInLinkedList(magic_list);
}
UnlockSemaphoreInfo(magic_list_semaphore);
qsort((void *) aliases,(size_t) i,sizeof(*aliases),MagicCompare);
aliases[i]=(char *) NULL;
*number_aliases=(size_t) i;
return(aliases);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t M a g i c N a m e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetMagicName() returns the name associated with the magic.
%
% The format of the GetMagicName method is:
%
% const char *GetMagicName(const MagicInfo *magic_info)
%
% A description of each parameter follows:
%
% o magic_info: The magic info.
%
*/
MagickExport const char *GetMagicName(const MagicInfo *magic_info)
{
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
assert(magic_info != (MagicInfo *) NULL);
assert(magic_info->signature == MagickCoreSignature);
return(magic_info->name);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ I s M a g i c L i s t I n s t a n t i a t e d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% IsMagicListInstantiated() determines if the magic list is instantiated.
% If not, it instantiates the list and returns it.
%
% The format of the IsMagicListInstantiated method is:
%
% MagickBooleanType IsMagicListInstantiated(ExceptionInfo *exception)
%
% A description of each parameter follows.
%
% o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType IsMagicListInstantiated(ExceptionInfo *exception)
{
if (magic_list == (LinkedListInfo *) NULL)
{
if (magic_list_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&magic_list_semaphore);
LockSemaphoreInfo(magic_list_semaphore);
if (magic_list == (LinkedListInfo *) NULL)
magic_list=AcquireMagicList(exception);
UnlockSemaphoreInfo(magic_list_semaphore);
}
return(magic_list != (LinkedListInfo *) NULL ? MagickTrue : MagickFalse);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% L i s t M a g i c I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ListMagicInfo() lists the magic info to a file.
%
% The format of the ListMagicInfo method is:
%
% MagickBooleanType ListMagicInfo(FILE *file,ExceptionInfo *exception)
%
% A description of each parameter follows.
%
% o file: An pointer to a FILE.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport MagickBooleanType ListMagicInfo(FILE *file,
ExceptionInfo *exception)
{
const char
*path;
const MagicInfo
**magic_info;
register ssize_t
i;
size_t
number_aliases;
ssize_t
j;
if (file == (const FILE *) NULL)
file=stdout;
magic_info=GetMagicInfoList("*",&number_aliases,exception);
if (magic_info == (const MagicInfo **) NULL)
return(MagickFalse);
path=(const char *) NULL;
for (i=0; i < (ssize_t) number_aliases; i++)
{
if (magic_info[i]->stealth != MagickFalse)
continue;
if ((path == (const char *) NULL) ||
(LocaleCompare(path,magic_info[i]->path) != 0))
{
if (magic_info[i]->path != (char *) NULL)
(void) FormatLocaleFile(file,"\nPath: %s\n\n",magic_info[i]->path);
(void) FormatLocaleFile(file,"Name Offset Target\n");
(void) FormatLocaleFile(file,
"-------------------------------------------------"
"------------------------------\n");
}
path=magic_info[i]->path;
(void) FormatLocaleFile(file,"%s",magic_info[i]->name);
for (j=(ssize_t) strlen(magic_info[i]->name); j <= 9; j++)
(void) FormatLocaleFile(file," ");
(void) FormatLocaleFile(file,"%6ld ",(long) magic_info[i]->offset);
if (magic_info[i]->target != (char *) NULL)
{
for (j=0; magic_info[i]->target[j] != '\0'; j++)
if (isprint((int) ((unsigned char) magic_info[i]->target[j])) != 0)
(void) FormatLocaleFile(file,"%c",magic_info[i]->target[j]);
else
(void) FormatLocaleFile(file,"\\%03o",(unsigned int)
((unsigned char) magic_info[i]->target[j]));
}
(void) FormatLocaleFile(file,"\n");
}
(void) fflush(file);
magic_info=(const MagicInfo **) RelinquishMagickMemory((void *) magic_info);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ M a g i c C o m p o n e n t G e n e s i s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagicComponentGenesis() instantiates the magic component.
%
% The format of the MagicComponentGenesis method is:
%
% MagickBooleanType MagicComponentGenesis(void)
%
*/
MagickPrivate MagickBooleanType MagicComponentGenesis(void)
{
if (magic_list_semaphore == (SemaphoreInfo *) NULL)
magic_list_semaphore=AcquireSemaphoreInfo();
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ M a g i c C o m p o n e n t T e r m i n u s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagicComponentTerminus() destroys the magic component.
%
% The format of the MagicComponentTerminus method is:
%
% MagicComponentTerminus(void)
%
*/
static void *DestroyMagicElement(void *magic_info)
{
register MagicInfo
*p;
p=(MagicInfo *) magic_info;
if (p->exempt == MagickFalse)
{
if (p->path != (char *) NULL)
p->path=DestroyString(p->path);
if (p->name != (char *) NULL)
p->name=DestroyString(p->name);
if (p->target != (char *) NULL)
p->target=DestroyString(p->target);
if (p->magic != (unsigned char *) NULL)
p->magic=(unsigned char *) RelinquishMagickMemory(p->magic);
}
p=(MagicInfo *) RelinquishMagickMemory(p);
return((void *) NULL);
}
MagickPrivate void MagicComponentTerminus(void)
{
if (magic_list_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&magic_list_semaphore);
LockSemaphoreInfo(magic_list_semaphore);
if (magic_list != (LinkedListInfo *) NULL)
magic_list=DestroyLinkedList(magic_list,DestroyMagicElement);
UnlockSemaphoreInfo(magic_list_semaphore);
RelinquishSemaphoreInfo(&magic_list_semaphore);
if (magic_cache_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&magic_cache_semaphore);
LockSemaphoreInfo(magic_cache_semaphore);
if (magic_cache != (LinkedListInfo *) NULL)
magic_cache=DestroyLinkedList(magic_cache,(void *(*)(void *)) NULL);
UnlockSemaphoreInfo(magic_cache_semaphore);
RelinquishSemaphoreInfo(&magic_cache_semaphore);
}