/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t L o c a l e O p t i o n s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetLocaleOptions() returns any Magick configuration messages associated
% with the specified filename.
%
% The format of the GetLocaleOptions method is:
%
% LinkedListInfo *GetLocaleOptions(const char *filename,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o filename: the locale file tag.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport LinkedListInfo *GetLocaleOptions(const char *filename,
ExceptionInfo *exception)
{
char
path[MaxTextExtent];
const char
*element;
LinkedListInfo
*messages,
*paths;
StringInfo
*xml;
assert(filename != (const char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",filename);
assert(exception != (ExceptionInfo *) NULL);
(void) CopyMagickString(path,filename,MaxTextExtent);
/*
Load XML from configuration files to linked-list.
*/
messages=NewLinkedList(0);
paths=GetConfigurePaths(filename,exception);
if (paths != (LinkedListInfo *) NULL)
{
ResetLinkedListIterator(paths);
element=(const char *) GetNextValueInLinkedList(paths);
while (element != (const char *) NULL)
{
(void) FormatMagickString(path,MaxTextExtent,"%s%s",element,filename);
(void) LogMagickEvent(LocaleEvent,GetMagickModule(),
"Searching for locale file: \"%s\"",path);
xml=ConfigureFileToStringInfo(path);
if (xml != (StringInfo *) NULL)
(void) AppendValueToLinkedList(messages,xml);
element=(const char *) GetNextValueInLinkedList(paths);
}
paths=DestroyLinkedList(paths,RelinquishMagickMemory);
}
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
{
char
*blob;
blob=(char *) NTResourceToBlob(filename);
if (blob != (char *) NULL)
{
xml=StringToStringInfo(blob);
(void) AppendValueToLinkedList(messages,xml);
blob=DestroyString(blob);
}
}
#endif
ResetLinkedListIterator(messages);
return(messages);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% C a t c h E x c e p t i o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% CatchException() returns if no exceptions is found otherwise it reports
% the exception as a warning, error, or fatal depending on the severity.
%
% The format of the CatchException method is:
%
% CatchException(ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o exception: the exception info.
%
*/
MagickExport void CatchException(ExceptionInfo *exception)
{
register const ExceptionInfo
*p;
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
if (exception->exceptions == (void *) NULL)
return;
LockSemaphoreInfo(exception->semaphore);
ResetLinkedListIterator((LinkedListInfo *) exception->exceptions);
p=(const ExceptionInfo *) GetNextValueInLinkedList((LinkedListInfo *)
exception->exceptions);
while (p != (const ExceptionInfo *) NULL)
{
if ((p->severity >= WarningException) && (p->severity < ErrorException))
MagickWarning(p->severity,p->reason,p->description);
if ((p->severity >= ErrorException) && (p->severity < FatalErrorException))
MagickError(p->severity,p->reason,p->description);
if (p->severity >= FatalErrorException)
MagickFatalError(p->severity,p->reason,p->description);
p=(const ExceptionInfo *) GetNextValueInLinkedList((LinkedListInfo *)
exception->exceptions);
}
UnlockSemaphoreInfo(exception->semaphore);
ClearMagickException(exception);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ 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.
%
*/
MagickExport const MagicInfo *GetMagicInfo(const unsigned char *magic,
const size_t length,ExceptionInfo *exception)
{
register const MagicInfo
*p;
assert(exception != (ExceptionInfo *) NULL);
if (IsMagicCacheInstantiated(exception) == MagickFalse)
return((const MagicInfo *) NULL);
/*
Search for magic tag.
*/
LockSemaphoreInfo(magic_semaphore);
ResetLinkedListIterator(magic_cache);
p=(const MagicInfo *) GetNextValueInLinkedList(magic_cache);
if (magic == (const unsigned char *) NULL)
{
UnlockSemaphoreInfo(magic_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_cache);
}
if (p != (const MagicInfo *) NULL)
(void) InsertValueInLinkedList(magic_cache,0,
RemoveElementByValueFromLinkedList(magic_cache,p));
UnlockSemaphoreInfo(magic_semaphore);
return(p);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S e t M a g i c k S e c u r i t y P o l i c y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% SetMagickSecurityPolicy() sets the ImageMagick security policy. It returns
% MagickFalse if the policy is already set or if the policy does not parse.
%
% The format of the SetMagickSecurityPolicy method is:
%
% MagickBooleanType SetMagickSecurityPolicy(const char *policy,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o policy: the security policy in the XML format.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport MagickBooleanType SetMagickSecurityPolicy(const char *policy,
ExceptionInfo *exception)
{
PolicyInfo
*p;
MagickBooleanType
status;
assert(exception != (ExceptionInfo *) NULL);
if (policy == (const char *) NULL)
return(MagickFalse);
if (IsPolicyCacheInstantiated(exception) == MagickFalse)
return(MagickFalse);
LockSemaphoreInfo(policy_semaphore);
ResetLinkedListIterator(policy_cache);
p=(PolicyInfo *) GetNextValueInLinkedList(policy_cache);
if ((p != (PolicyInfo *) NULL) && (p->domain != UndefinedPolicyDomain))
{
UnlockSemaphoreInfo(policy_semaphore);
return(MagickFalse);
}
UnlockSemaphoreInfo(policy_semaphore);
status=LoadPolicyCache(policy_cache,policy,"[user-policy]",0,exception);
if (status == MagickFalse)
return(MagickFalse);
return(ResourceComponentGenesis());
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ G e t C o n f i g u r e I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetConfigureInfo() searches the configure list for the specified name and if
% found returns attributes for that element.
%
% The format of the GetConfigureInfo method is:
%
% const ConfigureInfo *GetConfigureInfo(const char *name,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o configure_info: GetConfigureInfo() searches the configure list for the
% specified name and if found returns attributes for that element.
%
% o name: the configure name.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport const ConfigureInfo *GetConfigureInfo(const char *name,
ExceptionInfo *exception)
{
register const ConfigureInfo
*p;
assert(exception != (ExceptionInfo *) NULL);
if ((configure_list == (LinkedListInfo *) NULL) ||
(instantiate_configure == MagickFalse))
if (InitializeConfigureList(exception) == MagickFalse)
return((const ConfigureInfo *) NULL);
if ((configure_list == (LinkedListInfo *) NULL) ||
(IsLinkedListEmpty(configure_list) != MagickFalse))
return((const ConfigureInfo *) NULL);
if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
return((const ConfigureInfo *) GetValueFromLinkedList(configure_list,0));
/*
Search for configure tag.
*/
LockSemaphoreInfo(configure_semaphore);
ResetLinkedListIterator(configure_list);
p=(const ConfigureInfo *) GetNextValueInLinkedList(configure_list);
while (p != (const ConfigureInfo *) NULL)
{
if (LocaleCompare(name,p->name) == 0)
break;
p=(const ConfigureInfo *) GetNextValueInLinkedList(configure_list);
}
if (p != (ConfigureInfo *) NULL)
(void) InsertValueInLinkedList(configure_list,0,
RemoveElementByValueFromLinkedList(configure_list,p));
UnlockSemaphoreInfo(configure_semaphore);
return(p);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ 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.
%
*/
MagickExport const MagicInfo *GetMagicInfo(const unsigned char *magic,
const size_t length,ExceptionInfo *exception)
{
register const MagicInfo
*p;
assert(exception != (ExceptionInfo *) NULL);
if ((magic_list == (LinkedListInfo *) NULL) ||
(instantiate_magic == MagickFalse))
if (InitializeMagicList(exception) == MagickFalse)
return((const MagicInfo *) NULL);
if ((magic_list == (LinkedListInfo *) NULL) ||
(IsLinkedListEmpty(magic_list) != MagickFalse))
return((const MagicInfo *) NULL);
if ((magic == (const unsigned char *) NULL) || (length == 0))
return((const MagicInfo *) GetValueFromLinkedList(magic_list,0));
if (length == 0)
return((const MagicInfo *) NULL);
/*
Search for requested magic.
*/
AcquireSemaphoreInfo(&magic_semaphore);
ResetLinkedListIterator(magic_list);
p=(const MagicInfo *) GetNextValueInLinkedList(magic_list);
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);
}
RelinquishSemaphoreInfo(magic_semaphore);
return((const MagicInfo *) 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) || (IsMagicCacheInstantiated(exception) == MagickFalse))
return(size);
LockSemaphoreInfo(magic_semaphore);
ResetLinkedListIterator(magic_cache);
max=0;
p=(const MagicInfo *) GetNextValueInLinkedList(magic_cache);
while (p != (const MagicInfo *) NULL)
{
magickSize=(size_t) (p->offset+p->length);
if (magickSize > max)
max=magickSize;
p=(const MagicInfo *) GetNextValueInLinkedList(magic_cache);
}
size=max;
UnlockSemaphoreInfo(magic_semaphore);
return(size);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% I n h e r i t E x c e p t i o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% InheritException() inherits an exception from a related exception.
%
% The format of the InheritException method is:
%
% InheritException(ExceptionInfo *exception,const ExceptionInfo *relative)
%
% A description of each parameter follows:
%
% o exception: the exception info.
%
% o relative: the related exception info.
%
*/
MagickExport void InheritException(ExceptionInfo *exception,
const ExceptionInfo *relative)
{
register const ExceptionInfo
*p;
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
assert(relative != (ExceptionInfo *) NULL);
assert(relative->signature == MagickSignature);
assert(exception != relative);
if (relative->exceptions == (void *) NULL)
return;
LockSemaphoreInfo(relative->semaphore);
ResetLinkedListIterator((LinkedListInfo *) relative->exceptions);
p=(const ExceptionInfo *) GetNextValueInLinkedList((LinkedListInfo *)
relative->exceptions);
while (p != (const ExceptionInfo *) NULL)
{
(void) ThrowException(exception,p->severity,p->reason,p->description);
p=(const ExceptionInfo *) GetNextValueInLinkedList((LinkedListInfo *)
relative->exceptions);
}
UnlockSemaphoreInfo(relative->semaphore);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ G e t C o n f i g u r e I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetConfigureInfo() searches the configure list for the specified name and if
% found returns attributes for that element.
%
% The format of the GetConfigureInfo method is:
%
% const ConfigureInfo *GetConfigureInfo(const char *name,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o configure_info: GetConfigureInfo() searches the configure list for the
% specified name and if found returns attributes for that element.
%
% o name: The configure name.
%
% o exception: Return any errors or warnings in this structure.
%
*/
WizardExport const ConfigureInfo *GetConfigureInfo(const char *name,
ExceptionInfo *exception)
{
register const ConfigureInfo
*p;
assert(exception != (ExceptionInfo *) NULL);
if (IsConfigureCacheInstantiated(exception) == WizardFalse)
return((const ConfigureInfo *) NULL);
/*
Search for named configure.
*/
LockSemaphoreInfo(configure_semaphore);
ResetLinkedListIterator(configure_cache);
p=(const ConfigureInfo *) GetNextValueInLinkedList(configure_cache);
if ((name == (const char *) NULL) || (strcasecmp(name,"*") == 0))
{
UnlockSemaphoreInfo(configure_semaphore);
return(p);
}
while (p != (const ConfigureInfo *) NULL)
{
if (strcasecmp(name,p->name) == 0)
break;
p=(const ConfigureInfo *) GetNextValueInLinkedList(configure_cache);
}
if (p == (ConfigureInfo *) NULL)
(void) ThrowWizardException(exception,GetWizardModule(),OptionWarning,
"no such configure list `%s'",name);
else
(void) InsertValueInLinkedList(configure_cache,0,
RemoveElementByValueFromLinkedList(configure_cache,p));
UnlockSemaphoreInfo(configure_semaphore);
return(p);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ G e t P o l i c y I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetPolicyInfo() searches the policy list for the specified name and if found
% returns attributes for that policy.
%
% The format of the GetPolicyInfo method is:
%
% PolicyInfo *GetPolicyInfo(const char *name,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o name: the policy name.
%
% o exception: return any errors or warnings in this structure.
%
*/
static PolicyInfo *GetPolicyInfo(const char *name,ExceptionInfo *exception)
{
char
policyname[MaxTextExtent];
register PolicyInfo
*p;
register char
*q;
assert(exception != (ExceptionInfo *) NULL);
if ((policy_list == (LinkedListInfo *) NULL) ||
(instantiate_policy == MagickFalse))
if (InitializePolicyList(exception) == MagickFalse)
return((PolicyInfo *) NULL);
if ((policy_list == (LinkedListInfo *) NULL) ||
(IsLinkedListEmpty(policy_list) != MagickFalse))
return((PolicyInfo *) NULL);
if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
return((PolicyInfo *) GetValueFromLinkedList(policy_list,0));
/*
Strip names of whitespace.
*/
(void) CopyMagickString(policyname,name,MaxTextExtent);
for (q=policyname; *q != '\0'; q++)
{
if (isspace((int) ((unsigned char) *q)) == 0)
continue;
(void) CopyMagickString(q,q+1,MaxTextExtent);
q--;
}
/*
Search for policy tag.
*/
LockSemaphoreInfo(policy_semaphore);
ResetLinkedListIterator(policy_list);
p=(PolicyInfo *) GetNextValueInLinkedList(policy_list);
while (p != (PolicyInfo *) NULL)
{
if (LocaleCompare(policyname,p->name) == 0)
break;
p=(PolicyInfo *) GetNextValueInLinkedList(policy_list);
}
if (p != (PolicyInfo *) NULL)
(void) InsertValueInLinkedList(policy_list,0,
RemoveElementByValueFromLinkedList(policy_list,p));
UnlockSemaphoreInfo(policy_semaphore);
return(p);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% I s R i g h t s A u t h o r i z e d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% IsRightsAuthorized() returns MagickTrue if the policy authorizes the
% requested rights for the specified domain.
%
% The format of the IsRightsAuthorized method is:
%
% MagickBooleanType IsRightsAuthorized(const PolicyDomain domain,
% const PolicyRights rights,const char *pattern)
%
% A description of each parameter follows:
%
% o domain: the policy domain.
%
% o rights: the policy rights.
%
% o pattern: the coder, delegate, filter, or path pattern.
%
*/
MagickExport MagickBooleanType IsRightsAuthorized(const PolicyDomain domain,
const PolicyRights rights,const char *pattern)
{
const PolicyInfo
*policy_info;
ExceptionInfo
*exception;
MagickBooleanType
authorized;
register PolicyInfo
*p;
(void) LogMagickEvent(PolicyEvent,GetMagickModule(),
"Domain: %s; rights=%s; pattern=\"%s\" ...",
CommandOptionToMnemonic(MagickPolicyDomainOptions,domain),
CommandOptionToMnemonic(MagickPolicyRightsOptions,rights),pattern);
exception=AcquireExceptionInfo();
policy_info=GetPolicyInfo("*",exception);
exception=DestroyExceptionInfo(exception);
if (policy_info == (PolicyInfo *) NULL)
return(MagickTrue);
authorized=MagickTrue;
LockSemaphoreInfo(policy_semaphore);
ResetLinkedListIterator(policy_list);
p=(PolicyInfo *) GetNextValueInLinkedList(policy_list);
while ((p != (PolicyInfo *) NULL) && (authorized != MagickFalse))
{
if ((p->domain == domain) &&
(GlobExpression(pattern,p->pattern,MagickFalse) != MagickFalse))
{
if (((rights & ReadPolicyRights) != 0) &&
((p->rights & ReadPolicyRights) == 0))
authorized=MagickFalse;
if (((rights & WritePolicyRights) != 0) &&
((p->rights & WritePolicyRights) == 0))
authorized=MagickFalse;
if (((rights & ExecutePolicyRights) != 0) &&
((p->rights & ExecutePolicyRights) == 0))
authorized=MagickFalse;
}
p=(PolicyInfo *) GetNextValueInLinkedList(policy_list);
}
UnlockSemaphoreInfo(policy_semaphore);
return(authorized);
}
static MagickBooleanType SetPolicyValue(const PolicyDomain domain,
const char *name,const char *value)
{
MagickBooleanType
status;
register PolicyInfo
*p;
status=MagickTrue;
LockSemaphoreInfo(policy_semaphore);
ResetLinkedListIterator(policy_cache);
p=(PolicyInfo *) GetNextValueInLinkedList(policy_cache);
while (p != (PolicyInfo *) NULL)
{
if ((p->domain == domain) && (LocaleCompare(name,p->name) == 0))
break;
p=(PolicyInfo *) GetNextValueInLinkedList(policy_cache);
}
if (p != (PolicyInfo *) NULL)
{
if (p->value != (char *) NULL)
p->value=DestroyString(p->value);
}
else
{
p=(PolicyInfo *) AcquireCriticalMemory(sizeof(*p));
(void) memset(p,0,sizeof(*p));
p->exempt=MagickFalse;
p->signature=MagickCoreSignature;
p->domain=domain;
p->name=ConstantString(name);
status=AppendValueToLinkedList(policy_cache,p);
}
p->value=ConstantString(value);
UnlockSemaphoreInfo(policy_semaphore);
if (status == MagickFalse)
p=(PolicyInfo *) RelinquishMagickMemory(p);
return(status);
}
int HasError(ExceptionInfo *exception) {
register const ExceptionInfo *p;
int result = 0;
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
if (exception->exceptions == (void *) NULL)
return 0;
if (exception->semaphore == (void *) NULL)
return 0;
LockSemaphoreInfo(exception->semaphore);
ResetLinkedListIterator((LinkedListInfo *) exception->exceptions);
p=(const ExceptionInfo *) GetNextValueInLinkedList((LinkedListInfo *)
exception->exceptions);
while (p != (const ExceptionInfo *) NULL) {
if (p->severity >= ErrorException)
result = 1;
p=(const ExceptionInfo *) GetNextValueInLinkedList((LinkedListInfo *)
exception->exceptions);
}
UnlockSemaphoreInfo(exception->semaphore);
return result;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t C o n f i g u r e O p t i o n s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetConfigureOptions() returns any Magick configuration options associated
% with the specified filename.
%
% The format of the GetConfigureOptions method is:
%
% LinkedListInfo *GetConfigureOptions(const char *filename,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o filename: the configure file name.
%
% o exception: return any errors or warnings in this structure.
%
*/
MagickExport LinkedListInfo *GetConfigureOptions(const char *filename,
ExceptionInfo *exception)
{
char
path[MaxTextExtent];
const char
*element;
LinkedListInfo
*options,
*paths;
StringInfo
*xml;
assert(filename != (const char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",filename);
assert(exception != (ExceptionInfo *) NULL);
(void) CopyMagickString(path,filename,MaxTextExtent);
/*
Load XML from configuration files to linked-list.
*/
options=NewLinkedList(0);
paths=GetConfigurePaths(filename,exception);
if (paths != (LinkedListInfo *) NULL)
{
ResetLinkedListIterator(paths);
element=(const char *) GetNextValueInLinkedList(paths);
while (element != (const char *) NULL)
{
(void) FormatLocaleString(path,MaxTextExtent,"%s%s",element,filename);
(void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
"Searching for configure file: \"%s\"",path);
xml=ConfigureFileToStringInfo(path);
if (xml != (StringInfo *) NULL)
(void) AppendValueToLinkedList(options,xml);
element=(const char *) GetNextValueInLinkedList(paths);
}
paths=DestroyLinkedList(paths,RelinquishMagickMemory);
}
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
if (GetNumberOfElementsInLinkedList(options) == 0)
{
char
*blob;
blob=(char *) NTResourceToBlob(filename);
if (blob != (char *) NULL)
{
xml=AcquireStringInfo(0);
SetStringInfoLength(xml,strlen(blob)+1);
SetStringInfoDatum(xml,(unsigned char *) blob);
SetStringInfoPath(xml,filename);
(void) AppendValueToLinkedList(options,xml);
}
}
#endif
if (GetNumberOfElementsInLinkedList(options) == 0)
(void) ThrowMagickException(exception,GetMagickModule(),ConfigureWarning,
"UnableToOpenConfigureFile","`%s'",filename);
ResetLinkedListIterator(options);
return(options);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ G e t P o l i c y I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetPolicyInfo() searches the policy list for the specified name and if found
% returns attributes for that policy.
%
% The format of the GetPolicyInfo method is:
%
% PolicyInfo *GetPolicyInfo(const char *name,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o name: the policy name.
%
% o exception: return any errors or warnings in this structure.
%
*/
static PolicyInfo *GetPolicyInfo(const char *name,ExceptionInfo *exception)
{
char
policyname[MagickPathExtent];
PolicyDomain
domain;
register PolicyInfo
*p;
register char
*q;
assert(exception != (ExceptionInfo *) NULL);
if (IsPolicyCacheInstantiated(exception) == MagickFalse)
return((PolicyInfo *) NULL);
/*
Strip names of whitespace.
*/
*policyname='\0';
if (name != (const char *) NULL)
(void) CopyMagickString(policyname,name,MagickPathExtent);
for (q=policyname; *q != '\0'; q++)
{
if (isspace((int) ((unsigned char) *q)) == 0)
continue;
(void) CopyMagickString(q,q+1,MagickPathExtent);
q--;
}
/*
Strip domain from policy name (e.g. resource:map).
*/
domain=UndefinedPolicyDomain;
for (q=policyname; *q != '\0'; q++)
{
if (*q != ':')
continue;
*q='\0';
domain=(PolicyDomain) ParseCommandOption(MagickPolicyDomainOptions,
MagickTrue,policyname);
(void) CopyMagickString(policyname,q+1,MagickPathExtent);
break;
}
/*
Search for policy tag.
*/
LockSemaphoreInfo(policy_semaphore);
ResetLinkedListIterator(policy_cache);
p=(PolicyInfo *) GetNextValueInLinkedList(policy_cache);
if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
{
UnlockSemaphoreInfo(policy_semaphore);
return(p);
}
while (p != (PolicyInfo *) NULL)
{
if ((domain == UndefinedPolicyDomain) || (p->domain == domain))
if (LocaleCompare(policyname,p->name) == 0)
break;
p=(PolicyInfo *) GetNextValueInLinkedList(policy_cache);
}
if (p != (PolicyInfo *) NULL)
(void) InsertValueInLinkedList(policy_cache,0,
RemoveElementByValueFromLinkedList(policy_cache,p));
UnlockSemaphoreInfo(policy_semaphore);
return(p);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d C A C H E I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadMPCImage() reads an Magick Persistent Cache image file and returns
% it. It allocates the memory necessary for the new Image structure and
% returns a pointer to the new image.
%
% The format of the ReadMPCImage method is:
%
% Image *ReadMPCImage(const ImageInfo *image_info,ExceptionInfo *exception)
%
% Decompression code contributed by Kyle Shorter.
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadMPCImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
char
cache_filename[MaxTextExtent],
id[MaxTextExtent],
keyword[MaxTextExtent],
*options;
const unsigned char
*p;
GeometryInfo
geometry_info;
Image
*image;
int
c;
LinkedListInfo
*profiles;
MagickBooleanType
status;
MagickOffsetType
offset;
MagickStatusType
flags;
register long
i;
size_t
length;
ssize_t
count;
StringInfo
*profile;
unsigned long
depth,
quantum_depth;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
(void) CopyMagickString(cache_filename,image->filename,MaxTextExtent);
AppendImageFormat("cache",cache_filename);
c=ReadBlobByte(image);
if (c == EOF)
{
image=DestroyImage(image);
return((Image *) NULL);
}
*id='\0';
(void) ResetMagickMemory(keyword,0,sizeof(keyword));
offset=0;
do
{
/*
Decode image header; header terminates one character beyond a ':'.
*/
profiles=(LinkedListInfo *) NULL;
length=MaxTextExtent;
options=AcquireString((char *) NULL);
quantum_depth=MAGICKCORE_QUANTUM_DEPTH;
image->depth=8;
image->compression=NoCompression;
while ((isgraph(c) != MagickFalse) && (c != (int) ':'))
{
register char
*p;
if (c == (int) '{')
{
char
*comment;
/*
Read comment-- any text between { }.
*/
length=MaxTextExtent;
comment=AcquireString((char *) NULL);
for (p=comment; comment != (char *) NULL; p++)
{
c=ReadBlobByte(image);
if ((c == EOF) || (c == (int) '}'))
break;
if ((size_t) (p-comment+1) >= length)
{
*p='\0';
length<<=1;
comment=(char *) ResizeQuantumMemory(comment,length+
MaxTextExtent,sizeof(*comment));
if (comment == (char *) NULL)
break;
p=comment+strlen(comment);
}
*p=(char) c;
}
if (comment == (char *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
*p='\0';
(void) SetImageProperty(image,"comment",comment);
comment=DestroyString(comment);
c=ReadBlobByte(image);
}
else
if (isalnum(c) != MagickFalse)
{
/*
Get the keyword.
*/
p=keyword;
do
{
if (isspace((int) ((unsigned char) c)) != 0)
break;
if (c == (int) '=')
break;
if ((size_t) (p-keyword) < (MaxTextExtent-1))
*p++=(char) c;
c=ReadBlobByte(image);
} while (c != EOF);
*p='\0';
p=options;
while (isspace((int) ((unsigned char) c)) != 0)
c=ReadBlobByte(image);
if (c == (int) '=')
{
/*
Get the keyword value.
*/
c=ReadBlobByte(image);
while ((c != (int) '}') && (c != EOF))
{
if ((size_t) (p-options+1) >= length)
{
*p='\0';
length<<=1;
options=(char *) ResizeQuantumMemory(options,length+
MaxTextExtent,sizeof(*options));
if (options == (char *) NULL)
break;
p=options+strlen(options);
}
if (options == (char *) NULL)
ThrowReaderException(ResourceLimitError,
"MemoryAllocationFailed");
*p++=(char) c;
c=ReadBlobByte(image);
if (*options != '{')
if (isspace((int) ((unsigned char) c)) != 0)
break;
}
}
*p='\0';
if (*options == '{')
(void) CopyMagickString(options,options+1,MaxTextExtent);
/*
Assign a value to the specified keyword.
*/
switch (*keyword)
{
case 'b':
case 'B':
{
if (LocaleCompare(keyword,"background-color") == 0)
{
(void) QueryColorDatabase(options,&image->background_color,
exception);
break;
}
if (LocaleCompare(keyword,"blue-primary") == 0)
{
flags=ParseGeometry(options,&geometry_info);
image->chromaticity.blue_primary.x=geometry_info.rho;
image->chromaticity.blue_primary.y=geometry_info.sigma;
if ((flags & SigmaValue) == 0)
image->chromaticity.blue_primary.y=
image->chromaticity.blue_primary.x;
break;
}
if (LocaleCompare(keyword,"border-color") == 0)
{
(void) QueryColorDatabase(options,&image->border_color,
exception);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'c':
case 'C':
{
if (LocaleCompare(keyword,"class") == 0)
{
long
storage_class;
storage_class=ParseMagickOption(MagickClassOptions,
MagickFalse,options);
if (storage_class < 0)
break;
image->storage_class=(ClassType) storage_class;
break;
}
if (LocaleCompare(keyword,"colors") == 0)
{
image->colors=StringToUnsignedLong(options);
break;
}
if (LocaleCompare(keyword,"colorspace") == 0)
{
long
colorspace;
colorspace=ParseMagickOption(MagickColorspaceOptions,
MagickFalse,options);
if (colorspace < 0)
break;
image->colorspace=(ColorspaceType) colorspace;
break;
}
if (LocaleCompare(keyword,"compression") == 0)
{
long
compression;
compression=ParseMagickOption(MagickCompressOptions,
MagickFalse,options);
if (compression < 0)
break;
image->compression=(CompressionType) compression;
break;
}
if (LocaleCompare(keyword,"columns") == 0)
{
image->columns=StringToUnsignedLong(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'd':
case 'D':
{
if (LocaleCompare(keyword,"delay") == 0)
{
image->delay=StringToUnsignedLong(options);
break;
}
if (LocaleCompare(keyword,"depth") == 0)
{
image->depth=StringToUnsignedLong(options);
break;
}
if (LocaleCompare(keyword,"dispose") == 0)
{
long
dispose;
dispose=ParseMagickOption(MagickDisposeOptions,MagickFalse,
options);
if (dispose < 0)
break;
image->dispose=(DisposeType) dispose;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'e':
case 'E':
{
if (LocaleCompare(keyword,"endian") == 0)
{
long
endian;
endian=ParseMagickOption(MagickEndianOptions,MagickFalse,
options);
if (endian < 0)
break;
image->endian=(EndianType) endian;
break;
}
if (LocaleCompare(keyword,"error") == 0)
{
image->error.mean_error_per_pixel=StringToDouble(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'g':
case 'G':
{
if (LocaleCompare(keyword,"gamma") == 0)
{
image->gamma=StringToDouble(options);
break;
}
if (LocaleCompare(keyword,"green-primary") == 0)
{
flags=ParseGeometry(options,&geometry_info);
image->chromaticity.green_primary.x=geometry_info.rho;
image->chromaticity.green_primary.y=geometry_info.sigma;
if ((flags & SigmaValue) == 0)
image->chromaticity.green_primary.y=
image->chromaticity.green_primary.x;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'i':
case 'I':
{
if (LocaleCompare(keyword,"id") == 0)
{
(void) CopyMagickString(id,options,MaxTextExtent);
break;
}
if (LocaleCompare(keyword,"iterations") == 0)
{
image->iterations=StringToUnsignedLong(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'm':
case 'M':
{
if (LocaleCompare(keyword,"matte") == 0)
{
long
matte;
matte=ParseMagickOption(MagickBooleanOptions,MagickFalse,
options);
if (matte < 0)
break;
image->matte=(MagickBooleanType) matte;
break;
}
if (LocaleCompare(keyword,"matte-color") == 0)
{
(void) QueryColorDatabase(options,&image->matte_color,
exception);
break;
}
if (LocaleCompare(keyword,"maximum-error") == 0)
{
image->error.normalized_maximum_error=StringToDouble(options);
break;
}
if (LocaleCompare(keyword,"mean-error") == 0)
{
image->error.normalized_mean_error=StringToDouble(options);
break;
}
if (LocaleCompare(keyword,"montage") == 0)
{
(void) CloneString(&image->montage,options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'o':
case 'O':
{
if (LocaleCompare(keyword,"opaque") == 0)
{
long
matte;
matte=ParseMagickOption(MagickBooleanOptions,MagickFalse,
options);
if (matte < 0)
break;
image->matte=(MagickBooleanType) matte;
break;
}
if (LocaleCompare(keyword,"orientation") == 0)
{
long
orientation;
orientation=ParseMagickOption(MagickOrientationOptions,
MagickFalse,options);
if (orientation < 0)
break;
image->orientation=(OrientationType) orientation;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'p':
case 'P':
{
if (LocaleCompare(keyword,"page") == 0)
{
char
*geometry;
geometry=GetPageGeometry(options);
(void) ParseAbsoluteGeometry(geometry,&image->page);
geometry=DestroyString(geometry);
break;
}
if ((LocaleNCompare(keyword,"profile:",8) == 0) ||
(LocaleNCompare(keyword,"profile-",8) == 0))
{
if (profiles == (LinkedListInfo *) NULL)
profiles=NewLinkedList(0);
(void) AppendValueToLinkedList(profiles,
AcquireString(keyword+8));
profile=AcquireStringInfo((size_t) StringToLong(options));
(void) SetImageProfile(image,keyword+8,profile);
profile=DestroyStringInfo(profile);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'q':
case 'Q':
{
if (LocaleCompare(keyword,"quality") == 0)
{
image->quality=StringToUnsignedLong(options);
break;
}
if (LocaleCompare(keyword,"quantum-depth") == 0)
{
quantum_depth=StringToUnsignedLong(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'r':
case 'R':
{
if (LocaleCompare(keyword,"red-primary") == 0)
{
flags=ParseGeometry(options,&geometry_info);
image->chromaticity.red_primary.x=geometry_info.rho;
if ((flags & SigmaValue) != 0)
image->chromaticity.red_primary.y=geometry_info.sigma;
break;
}
if (LocaleCompare(keyword,"rendering-intent") == 0)
{
long
rendering_intent;
rendering_intent=ParseMagickOption(MagickIntentOptions,
MagickFalse,options);
if (rendering_intent < 0)
break;
image->rendering_intent=(RenderingIntent) rendering_intent;
break;
}
if (LocaleCompare(keyword,"resolution") == 0)
{
flags=ParseGeometry(options,&geometry_info);
image->x_resolution=geometry_info.rho;
image->y_resolution=geometry_info.sigma;
if ((flags & SigmaValue) == 0)
image->y_resolution=image->x_resolution;
break;
}
if (LocaleCompare(keyword,"rows") == 0)
{
image->rows=StringToUnsignedLong(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 's':
case 'S':
{
if (LocaleCompare(keyword,"scene") == 0)
{
image->scene=StringToUnsignedLong(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 't':
case 'T':
{
if (LocaleCompare(keyword,"ticks-per-second") == 0)
{
image->ticks_per_second=(long) StringToLong(options);
break;
}
if (LocaleCompare(keyword,"tile-offset") == 0)
{
char
*geometry;
geometry=GetPageGeometry(options);
(void) ParseAbsoluteGeometry(geometry,&image->tile_offset);
geometry=DestroyString(geometry);
}
if (LocaleCompare(keyword,"type") == 0)
{
long
type;
type=ParseMagickOption(MagickTypeOptions,MagickFalse,
options);
if (type < 0)
break;
image->type=(ImageType) type;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'u':
case 'U':
{
if (LocaleCompare(keyword,"units") == 0)
{
long
units;
units=ParseMagickOption(MagickResolutionOptions,MagickFalse,
options);
if (units < 0)
break;
image->units=(ResolutionType) units;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'w':
case 'W':
{
if (LocaleCompare(keyword,"white-point") == 0)
{
flags=ParseGeometry(options,&geometry_info);
image->chromaticity.white_point.x=geometry_info.rho;
image->chromaticity.white_point.y=geometry_info.sigma;
if ((flags & SigmaValue) == 0)
image->chromaticity.white_point.y=
image->chromaticity.white_point.x;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
default:
{
(void) SetImageProperty(image,keyword,options);
break;
}
}
}
else
c=ReadBlobByte(image);
while (isspace((int) ((unsigned char) c)) != 0)
c=ReadBlobByte(image);
}
options=DestroyString(options);
(void) ReadBlobByte(image);
/*
Verify that required image information is defined.
*/
if ((LocaleCompare(id,"MagickCache") != 0) ||
(image->storage_class == UndefinedClass) ||
(image->compression == UndefinedCompression) || (image->columns == 0) ||
(image->rows == 0))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
if (quantum_depth != MAGICKCORE_QUANTUM_DEPTH)
ThrowReaderException(CacheError,"InconsistentPersistentCacheDepth");
if (image->montage != (char *) NULL)
{
register char
*p;
/*
Image directory.
*/
length=MaxTextExtent;
image->directory=AcquireString((char *) NULL);
p=image->directory;
do
{
*p='\0';
if ((strlen(image->directory)+MaxTextExtent) >= length)
{
/*
Allocate more memory for the image directory.
*/
length<<=1;
image->directory=(char *) ResizeQuantumMemory(image->directory,
length+MaxTextExtent,sizeof(*image->directory));
if (image->directory == (char *) NULL)
ThrowReaderException(CorruptImageError,"UnableToReadImageData");
p=image->directory+strlen(image->directory);
}
c=ReadBlobByte(image);
*p++=(char) c;
} while (c != (int) '\0');
}
if (profiles != (LinkedListInfo *) NULL)
{
const char
*name;
const StringInfo
*profile;
register unsigned char
*p;
/*
Read image profiles.
*/
ResetLinkedListIterator(profiles);
name=(const char *) GetNextValueInLinkedList(profiles);
while (name != (const char *) NULL)
{
profile=GetImageProfile(image,name);
if (profile != (StringInfo *) NULL)
{
p=GetStringInfoDatum(profile);
count=ReadBlob(image,GetStringInfoLength(profile),p);
}
name=(const char *) GetNextValueInLinkedList(profiles);
}
profiles=DestroyLinkedList(profiles,RelinquishMagickMemory);
}
depth=GetImageQuantumDepth(image,MagickFalse);
if (image->storage_class == PseudoClass)
{
/*
Create image colormap.
*/
if (AcquireImageColormap(image,image->colors) == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
if (image->colors != 0)
{
size_t
packet_size;
unsigned char
*colormap;
/*
Read image colormap from file.
*/
packet_size=(size_t) (3UL*depth/8UL);
colormap=(unsigned char *) AcquireQuantumMemory(image->colors,
packet_size*sizeof(*colormap));
if (colormap == (unsigned char *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
count=ReadBlob(image,packet_size*image->colors,colormap);
if (count != (ssize_t) (packet_size*image->colors))
ThrowReaderException(CorruptImageError,
"InsufficientImageDataInFile");
p=colormap;
switch (depth)
{
default:
ThrowReaderException(CorruptImageError,
"ImageDepthNotSupported");
case 8:
{
unsigned char
pixel;
for (i=0; i < (long) image->colors; i++)
{
p=PushCharPixel(p,&pixel);
image->colormap[i].red=ScaleCharToQuantum(pixel);
p=PushCharPixel(p,&pixel);
image->colormap[i].green=ScaleCharToQuantum(pixel);
p=PushCharPixel(p,&pixel);
image->colormap[i].blue=ScaleCharToQuantum(pixel);
}
break;
}
case 16:
{
unsigned short
pixel;
for (i=0; i < (long) image->colors; i++)
{
p=PushShortPixel(MSBEndian,p,&pixel);
image->colormap[i].red=ScaleShortToQuantum(pixel);
p=PushShortPixel(MSBEndian,p,&pixel);
image->colormap[i].green=ScaleShortToQuantum(pixel);
p=PushShortPixel(MSBEndian,p,&pixel);
image->colormap[i].blue=ScaleShortToQuantum(pixel);
}
break;
}
case 32:
{
unsigned long
pixel;
for (i=0; i < (long) image->colors; i++)
{
p=PushLongPixel(MSBEndian,p,&pixel);
image->colormap[i].red=ScaleLongToQuantum(pixel);
p=PushLongPixel(MSBEndian,p,&pixel);
image->colormap[i].green=ScaleLongToQuantum(pixel);
p=PushLongPixel(MSBEndian,p,&pixel);
image->colormap[i].blue=ScaleLongToQuantum(pixel);
}
break;
}
}
colormap=(unsigned char *) RelinquishMagickMemory(colormap);
}
}
if (EOFBlob(image) != MagickFalse)
{
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
break;
}
if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
break;
/*
Attach persistent pixel cache.
*/
status=PersistPixelCache(image,cache_filename,MagickTrue,&offset,exception);
if (status == MagickFalse)
ThrowReaderException(CacheError,"UnableToPersistPixelCache");
/*
Proceed to next image.
*/
do
{
c=ReadBlobByte(image);
} while ((isgraph(c) == MagickFalse) && (c != EOF));
if (c != EOF)
{
/*
Allocate next image structure.
*/
AcquireNextImage(image_info,image);
if (GetNextImageInList(image) == (Image *) NULL)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
image=SyncNextImageInList(image);
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
GetBlobSize(image));
if (status == MagickFalse)
break;
}
} while (c != EOF);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ G e t M i m e I n f o %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetMimeInfo() attempts to classify the content to identify which mime type
% is associated with the content, if any.
%
% The format of the GetMimeInfo method is:
%
% const MimeInfo *GetMimeInfo(const char *filename,
% const unsigned char *magic,const size_t length,
% ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o filename: If we cannot not classify the string, we attempt to classify
% based on the filename (e.g. *.pdf returns application/pdf).
%
% 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.
%
*/
MagickExport const MimeInfo *GetMimeInfo(const char *filename,
const unsigned char *magic,const size_t length,ExceptionInfo *exception)
{
const MimeInfo
*mime_info;
EndianType
endian;
register const MimeInfo
*p;
register const unsigned char
*q;
register ssize_t
i;
ssize_t
value;
unsigned long
lsb_first;
assert(exception != (ExceptionInfo *) NULL);
if (IsMimeCacheInstantiated(exception) == MagickFalse)
return((const MimeInfo *) NULL);
/*
Search for mime tag.
*/
mime_info=(const MimeInfo *) NULL;
lsb_first=1;
LockSemaphoreInfo(mime_semaphore);
ResetLinkedListIterator(mime_cache);
p=(const MimeInfo *) GetNextValueInLinkedList(mime_cache);
if ((magic == (const unsigned char *) NULL) || (length == 0))
{
UnlockSemaphoreInfo(mime_semaphore);
return(p);
}
while (p != (const MimeInfo *) NULL)
{
assert(p->offset >= 0);
if (mime_info != (const MimeInfo *) NULL)
if (p->priority > mime_info->priority)
{
p=(const MimeInfo *) GetNextValueInLinkedList(mime_cache);
continue;
}
if ((p->pattern != (char *) NULL) && (filename != (char *) NULL))
{
if (GlobExpression(filename,p->pattern,MagickFalse) != MagickFalse)
mime_info=p;
p=(const MimeInfo *) GetNextValueInLinkedList(mime_cache);
continue;
}
switch (p->data_type)
{
case ByteData:
{
if ((size_t) (p->offset+4) > length)
break;
q=magic+p->offset;
value=(ssize_t) (*q++);
if (p->mask == 0)
{
if (p->value == value)
mime_info=p;
}
else
{
if ((p->value & p->mask) == value)
mime_info=p;
}
break;
}
case ShortData:
{
if ((size_t) (p->offset+4) > length)
break;
q=magic+p->offset;
endian=p->endian;
if (p->endian == UndefinedEndian)
endian=(*(char *) &lsb_first) == 1 ? LSBEndian : MSBEndian;
if (endian == LSBEndian)
{
value=(ssize_t) (*q++);
value|=(*q++) << 8;
}
else
{
value=(ssize_t) (*q++) << 8;
value|=(*q++);
}
if (p->mask == 0)
{
if (p->value == value)
mime_info=p;
}
else
{
if ((p->value & p->mask) == value)
mime_info=p;
}
break;
}
case LongData:
{
if ((size_t) (p->offset+4) > length)
break;
q=magic+p->offset;
endian=p->endian;
if (p->endian == UndefinedEndian)
endian=(*(char *) &lsb_first) == 1 ? LSBEndian : MSBEndian;
if (endian == LSBEndian)
{
value=(ssize_t) (*q++);
value|=((ssize_t) *q++) << 8;
value|=((ssize_t) *q++) << 16;
value|=((ssize_t) *q++) << 24;
}
else
{
value=(ssize_t) (*q++) << 24;
value|=((ssize_t) *q++) << 16;
value|=((ssize_t) *q++) << 8;
value|=((ssize_t) *q++);
}
if (p->mask == 0)
{
if (p->value == value)
mime_info=p;
}
else
{
if ((p->value & p->mask) == value)
mime_info=p;
}
break;
}
case StringData:
default:
{
for (i=0; i <= (ssize_t) p->extent; i++)
{
if ((size_t) (p->offset+i+p->length) > length)
break;
if (memcmp(magic+p->offset+i,p->magic,p->length) == 0)
{
mime_info=p;
break;
}
}
break;
}
}
p=(const MimeInfo *) GetNextValueInLinkedList(mime_cache);
}
if (mime_info != (const MimeInfo *) NULL)
(void) InsertValueInLinkedList(mime_cache,0,
RemoveElementByValueFromLinkedList(mime_cache,p));
UnlockSemaphoreInfo(mime_semaphore);
return(mime_info);
}