magic.c File Reference

#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"
#include "coders/coders-list.h"

Data Structures
struct	_MagicMapInfo
struct	_MagicInfo
Defines
#define	AddMagickCoder(coder)   Magick ## coder ## Headers
Typedefs
typedef struct _MagicMapInfo	MagicMapInfo
Functions
static MagickBooleanType	IsMagicListInstantiated (ExceptionInfo *)
static int	CompareMagickInfoSize (const void *a, const void *b)
static LinkedListInfo *	AcquireMagicList (ExceptionInfo *exception)
static MagickBooleanType	IsMagicCacheInstantiated ()
MagickExport const MagicInfo *	GetMagicInfo (const unsigned char *magic, const size_t length, ExceptionInfo *exception)
MagickExport size_t	GetMagicPatternExtent (ExceptionInfo *exception)
static int	MagicInfoCompare (const void *x, const void *y)
MagickExport const MagicInfo **	GetMagicInfoList (const char *pattern, size_t *number_aliases, ExceptionInfo *exception)
static int	MagicCompare (const void *x, const void *y)
MagickExport char **	GetMagicList (const char *pattern, size_t *number_aliases, ExceptionInfo *exception)
MagickExport const char *	GetMagicName (const MagicInfo *magic_info)
MagickExport MagickBooleanType	ListMagicInfo (FILE *file, ExceptionInfo *exception)
MagickPrivate MagickBooleanType	MagicComponentGenesis (void)
static void *	DestroyMagicElement (void *magic_info)
MagickPrivate void	MagicComponentTerminus (void)
Variables
static const MagicMapInfo	MagicMap []
static LinkedListInfo *	magic_cache = (LinkedListInfo *) NULL
static LinkedListInfo *	magic_list = (LinkedListInfo *) NULL
static SemaphoreInfo *	magic_cache_semaphore = (SemaphoreInfo *) NULL
static SemaphoreInfo *	magic_list_semaphore = (SemaphoreInfo *) NULL

---

Define Documentation

#define AddMagickCoder

(

coder

)

Magick ## coder ## Headers

---

Typedef Documentation

typedef struct _MagicMapInfo MagicMapInfo

---

Function Documentation

static LinkedListInfo* AcquireMagicList

(

ExceptionInfo *

exception

)

[static]

References AcquireQuantumMemory(), CompareMagickInfoSize(), _MagicInfo::exempt, GetMagickModule, InsertValueInSortedLinkedList(), _MagicMapInfo::length, _MagicInfo::length, _MagicInfo::magic, _MagicMapInfo::magic, MagickCoreSignature, MagickFalse, MagickTrue, MagicMap, _MagicInfo::name, _MagicMapInfo::name, NewLinkedList(), _MagicMapInfo::offset, _MagicInfo::offset, _MagicInfo::path, ResourceLimitError, _MagicInfo::signature, _MagicInfo::target, and ThrowMagickException().

Referenced by IsMagicListInstantiated().

static int CompareMagickInfoSize	(	const void *	a,
		const void *	b
	)			[static]

References _MagicInfo::length, and _MagicInfo::offset.

Referenced by AcquireMagicList(), and GetMagicInfo().

static void* DestroyMagicElement

(

void *

magic_info

)

[static]

References DestroyString(), _MagicInfo::exempt, _MagicInfo::magic, MagickFalse, _MagicInfo::name, _MagicInfo::path, RelinquishMagickMemory(), and _MagicInfo::target.

Referenced by MagicComponentTerminus().

MagickExport const MagicInfo* GetMagicInfo	(	const unsigned char *	magic,
		const size_t	length,
		ExceptionInfo *	exception
	)

References CompareMagickInfoSize(), GetNextValueInLinkedList(), InsertValueInSortedLinkedList(), IsMagicCacheInstantiated(), IsMagicListInstantiated(), _MagicInfo::length, LockSemaphoreInfo(), _MagicInfo::magic, magic_cache, magic_cache_semaphore, magic_list, magic_list_semaphore, MagickFalse, _MagicInfo::offset, ResetLinkedListIterator(), and UnlockSemaphoreInfo().

Referenced by GetMagicInfoList(), GetMagicList(), and SetImageInfo().

MagickExport const MagicInfo** GetMagicInfoList	(	const char *	pattern,
		size_t *	number_aliases,
		ExceptionInfo *	exception
	)

References AcquireQuantumMemory(), GetMagicInfo(), GetMagickModule, GetNextValueInLinkedList(), GetNumberOfElementsInLinkedList(), GlobExpression(), LockSemaphoreInfo(), LogMagickEvent(), magic_list, magic_list_semaphore, MagicInfoCompare(), MagickFalse, _MagicInfo::name, ResetLinkedListIterator(), _MagicInfo::stealth, TraceEvent, and UnlockSemaphoreInfo().

Referenced by ListMagicInfo().

MagickExport char** GetMagicList	(	const char *	pattern,
		size_t *	number_aliases,
		ExceptionInfo *	exception
	)

References AcquireQuantumMemory(), ConstantString(), GetMagicInfo(), GetMagickModule, GetNextValueInLinkedList(), GetNumberOfElementsInLinkedList(), GlobExpression(), LockSemaphoreInfo(), LogMagickEvent(), magic_list, magic_list_semaphore, MagicCompare(), MagickFalse, _MagicInfo::name, ResetLinkedListIterator(), _MagicInfo::stealth, TraceEvent, and UnlockSemaphoreInfo().

MagickExport const char* GetMagicName

(

const MagicInfo *

magic_info

)

References GetMagickModule, LogMagickEvent(), MagickCoreSignature, _MagicInfo::name, _MagicInfo::signature, and TraceEvent.

Referenced by SetImageInfo().

MagickExport size_t GetMagicPatternExtent

(

ExceptionInfo *

exception

)

References GetNextValueInLinkedList(), IsMagicListInstantiated(), _MagicInfo::length, LockSemaphoreInfo(), magic_list, magic_list_semaphore, MagickFalse, _MagicInfo::offset, ResetLinkedListIterator(), and UnlockSemaphoreInfo().

Referenced by SetImageInfo().

static MagickBooleanType IsMagicCacheInstantiated

(

)

[static]

References ActivateSemaphoreInfo(), LockSemaphoreInfo(), magic_cache, magic_cache_semaphore, MagickFalse, MagickTrue, NewLinkedList(), and UnlockSemaphoreInfo().

Referenced by GetMagicInfo().

static MagickBooleanType IsMagicListInstantiated

(

ExceptionInfo *

exception

)

[static]

References AcquireMagicList(), ActivateSemaphoreInfo(), LockSemaphoreInfo(), magic_list, magic_list_semaphore, MagickFalse, MagickTrue, and UnlockSemaphoreInfo().

Referenced by GetMagicInfo(), and GetMagicPatternExtent().

MagickExport MagickBooleanType ListMagicInfo	(	FILE *	file,
		ExceptionInfo *	exception
	)

References FormatLocaleFile(), GetMagicInfoList(), LocaleCompare(), MagickFalse, MagickTrue, _MagicInfo::offset, _MagicInfo::path, RelinquishMagickMemory(), and _MagicInfo::target.

static int MagicCompare	(	const void *	x,
		const void *	y
	)			[static]

References LocaleCompare().

Referenced by GetMagicList().

MagickPrivate MagickBooleanType MagicComponentGenesis

(

void

)

References AcquireSemaphoreInfo(), magic_list_semaphore, and MagickTrue.

Referenced by MagickCoreGenesis().

MagickPrivate void MagicComponentTerminus

(

void

)

References ActivateSemaphoreInfo(), DestroyLinkedList(), DestroyMagicElement(), LockSemaphoreInfo(), magic_cache, magic_cache_semaphore, magic_list, magic_list_semaphore, RelinquishSemaphoreInfo(), and UnlockSemaphoreInfo().

Referenced by MagickCoreTerminus().

static int MagicInfoCompare	(	const void *	x,
		const void *	y
	)			[static]

References LocaleCompare().

Referenced by GetMagicInfoList().

---

Variable Documentation

LinkedListInfo* magic_cache = (LinkedListInfo *) NULL [static]

Referenced by GetMagicInfo(), IsMagicCacheInstantiated(), and MagicComponentTerminus().

SemaphoreInfo* magic_cache_semaphore = (SemaphoreInfo *) NULL [static]

Referenced by GetMagicInfo(), IsMagicCacheInstantiated(), and MagicComponentTerminus().

LinkedListInfo * magic_list = (LinkedListInfo *) NULL [static]

Referenced by GetMagicInfo(), GetMagicInfoList(), GetMagicList(), GetMagicPatternExtent(), IsMagicListInstantiated(), and MagicComponentTerminus().

SemaphoreInfo * magic_list_semaphore = (SemaphoreInfo *) NULL [static]

Referenced by GetMagicInfo(), GetMagicInfoList(), GetMagicList(), GetMagicPatternExtent(), IsMagicListInstantiated(), MagicComponentGenesis(), and MagicComponentTerminus().

const MagicMapInfo MagicMap[] [static]

Initial value:

  {

    MagickCoderHeader("CGM", 0, "BEGMF")
    MagickCoderHeader("FIG", 0, "#FIG")
    MagickCoderHeader("HPGL", 0, "IN;")
    MagickCoderHeader("ILBM", 8, "ILBM")
  }

Referenced by AcquireMagicList().