/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% L o a d M a g i c L i s t s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% LoadMagicList() loads one or more magic configuration file which provides a
% mapping between magic attributes and a magic name.
%
% The format of the LoadMagicLists method is:
%
% MagickBooleanType LoadMagicLists(const char *filename,
% 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 MagickBooleanType LoadMagicLists(const char *filename,
ExceptionInfo *exception)
{
#if defined(MAGICKCORE_EMBEDDABLE_SUPPORT)
return(LoadMagicList(MagicMap,"built-in",0,exception));
#else
char
path[MaxTextExtent];
const StringInfo
*option;
LinkedListInfo
*options;
MagickStatusType
status;
status=MagickFalse;
*path='\0';
options=GetConfigureOptions(filename,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
while (option != (const StringInfo *) NULL)
{
(void) CopyMagickString(path,GetStringInfoPath(option),MaxTextExtent);
status|=LoadMagicList((const char *) GetStringInfoDatum(option),
GetStringInfoPath(option),0,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
}
options=DestroyConfigureOptions(options);
if ((magic_list == (LinkedListInfo *) NULL) ||
(IsLinkedListEmpty(magic_list) != MagickFalse))
{
(void) ThrowMagickException(exception,GetMagickModule(),ConfigureWarning,
"UnableToOpenConfigureFile","`%s'",path);
status|=LoadMagicList(MagicMap,"built-in",0,exception);
}
return(status != 0 ? MagickTrue : MagickFalse);
#endif
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% L o a d M a g i c L i s t s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% LoadMagicLists() loads one or more magic configuration file which provides a
% mapping between magic attributes and a magic name.
%
% The format of the LoadMagicLists method is:
%
% MagickBooleanType LoadMagicLists(const char *filename,
% 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 MagickBooleanType LoadMagicLists(const char *filename,
ExceptionInfo *exception)
{
char
path[MaxTextExtent];
const StringInfo
*option;
LinkedListInfo
*options;
MagickStatusType
status;
register ssize_t
i;
/*
Load built-in magic map.
*/
status=MagickFalse;
if (magic_list == (LinkedListInfo *) NULL)
{
magic_list=NewLinkedList(0);
if (magic_list == (LinkedListInfo *) NULL)
{
ThrowFileException(exception,ResourceLimitError,
"MemoryAllocationFailed",filename);
return(MagickFalse);
}
}
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'",magic_info->name);
continue;
}
(void) ResetMagickMemory(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=MagickSignature;
status=AppendValueToLinkedList(magic_list,magic_info);
if (status == MagickFalse)
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",magic_info->name);
}
/*
Load external magic map.
*/
*path='\0';
options=GetConfigureOptions(filename,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
while (option != (const StringInfo *) NULL)
{
(void) CopyMagickString(path,GetStringInfoPath(option),MaxTextExtent);
status|=LoadMagicList((const char *) GetStringInfoDatum(option),
GetStringInfoPath(option),0,exception);
option=(const StringInfo *) GetNextValueInLinkedList(options);
}
options=DestroyConfigureOptions(options);
return(status != 0 ? MagickTrue : MagickFalse);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ L o a d M a g i c L i s t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% LoadMagicList() loads the magic configuration file which provides a mapping
% between magic attributes and a magic name.
%
% The format of the LoadMagicList method is:
%
% MagickBooleanType LoadMagicList(const char *xml,const char *filename,
% const size_t depth,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o xml: The magic list in XML format.
%
% o filename: The magic list filename.
%
% o depth: depth of <include /> statements.
%
% o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType LoadMagicList(const char *xml,const char *filename,
const size_t depth,ExceptionInfo *exception)
{
char
keyword[MaxTextExtent],
*token;
const char
*q;
MagickBooleanType
status;
MagicInfo
*magic_info;
/*
Load the magic map file.
*/
(void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
"Loading magic configure file \"%s\" ...",filename);
if (xml == (char *) NULL)
return(MagickFalse);
if (magic_list == (LinkedListInfo *) NULL)
{
magic_list=NewLinkedList(0);
if (magic_list == (LinkedListInfo *) NULL)
{
ThrowFileException(exception,ResourceLimitError,
"MemoryAllocationFailed",filename);
return(MagickFalse);
}
}
status=MagickTrue;
magic_info=(MagicInfo *) NULL;
token=AcquireString(xml);
for (q=(char *) xml; *q != '\0'; )
{
/*
Interpret XML.
*/
GetMagickToken(q,&q,token);
if (*token == '\0')
break;
(void) CopyMagickString(keyword,token,MaxTextExtent);
if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
{
/*
Doctype element.
*/
while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
GetMagickToken(q,&q,token);
continue;
}
if (LocaleNCompare(keyword,"<!--",4) == 0)
{
/*
Comment element.
*/
while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
GetMagickToken(q,&q,token);
continue;
}
if (LocaleCompare(keyword,"<include") == 0)
{
/*
Include element.
*/
while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
{
(void) CopyMagickString(keyword,token,MaxTextExtent);
GetMagickToken(q,&q,token);
if (*token != '=')
continue;
GetMagickToken(q,&q,token);
if (LocaleCompare(keyword,"file") == 0)
{
if (depth > 200)
(void) ThrowMagickException(exception,GetMagickModule(),
ConfigureError,"IncludeElementNestedTooDeeply","`%s'",token);
else
{
char
path[MaxTextExtent],
*xml;
GetPathComponent(filename,HeadPath,path);
if (*path != '\0')
(void) ConcatenateMagickString(path,DirectorySeparator,
MaxTextExtent);
if (*token == *DirectorySeparator)
(void) CopyMagickString(path,token,MaxTextExtent);
else
(void) ConcatenateMagickString(path,token,MaxTextExtent);
xml=FileToString(path,~0,exception);
if (xml != (char *) NULL)
{
status=LoadMagicList(xml,path,depth+1,exception);
xml=(char *) RelinquishMagickMemory(xml);
}
}
}
}
continue;
}
if (LocaleCompare(keyword,"<magic") == 0)
{
/*
Magic element.
*/
magic_info=(MagicInfo *) AcquireMagickMemory(sizeof(*magic_info));
if (magic_info == (MagicInfo *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
(void) ResetMagickMemory(magic_info,0,sizeof(*magic_info));
magic_info->path=ConstantString(filename);
magic_info->exempt=MagickFalse;
magic_info->signature=MagickSignature;
continue;
}
if (magic_info == (MagicInfo *) NULL)
continue;
if (LocaleCompare(keyword,"/>") == 0)
{
status=AppendValueToLinkedList(magic_list,magic_info);
if (status == MagickFalse)
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",
magic_info->name);
magic_info=(MagicInfo *) NULL;
}
GetMagickToken(q,(const char **) NULL,token);
if (*token != '=')
continue;
GetMagickToken(q,&q,token);
GetMagickToken(q,&q,token);
switch (*keyword)
{
case 'N':
case 'n':
{
if (LocaleCompare((char *) keyword,"name") == 0)
{
magic_info->name=ConstantString(token);
break;
}
break;
}
case 'O':
case 'o':
{
if (LocaleCompare((char *) keyword,"offset") == 0)
{
magic_info->offset=(MagickOffsetType) StringToLong(token);
break;
}
break;
}
case 'S':
case 's':
{
if (LocaleCompare((char *) keyword,"stealth") == 0)
{
magic_info->stealth=IsMagickTrue(token);
break;
}
break;
}
case 'T':
case 't':
{
if (LocaleCompare((char *) keyword,"target") == 0)
{
char
*p;
register unsigned char
*q;
size_t
length;
length=strlen(token);
magic_info->target=ConstantString(token);
magic_info->magic=(unsigned char *) ConstantString(token);
q=magic_info->magic;
for (p=magic_info->target; *p != '\0'; )
{
if (*p == '\\')
{
p++;
if (isdigit((int) ((unsigned char) *p)) != 0)
{
char
*end;
*q++=(unsigned char) strtol(p,&end,8);
p+=(end-p);
magic_info->length++;
continue;
}
switch (*p)
{
case 'b': *q='\b'; break;
case 'f': *q='\f'; break;
case 'n': *q='\n'; break;
case 'r': *q='\r'; break;
case 't': *q='\t'; break;
case 'v': *q='\v'; break;
case 'a': *q='a'; break;
case '?': *q='\?'; break;
default: *q=(unsigned char) (*p); break;
}
p++;
q++;
magic_info->length++;
continue;
}
else
if (LocaleNCompare(p,"&",5) == 0)
(void) CopyMagickString(p+1,p+5,length-magic_info->length);
*q++=(unsigned char) (*p++);
magic_info->length++;
}
break;
}
break;
}
default:
break;
}
}
token=(char *) RelinquishMagickMemory(token);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ L o a d M a g i c L i s t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% LoadMagicList() loads the magic configuration file which provides a mapping
% between magic attributes and a magic name.
%
% The format of the LoadMagicList method is:
%
% MagickBooleanType LoadMagicList(const char *xml,const char *filename,
% const unsigned long depth,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o xml: The magic list in XML format.
%
% o filename: The magic list filename.
%
% o depth: depth of <include /> statements.
%
% o exception: Return any errors or warnings in this structure.
%
*/
static MagickBooleanType LoadMagicList(const char *xml,const char *filename,
const unsigned long depth,ExceptionInfo *exception)
{
const char
*attribute;
MagicInfo
*magic_info = (MagicInfo *) NULL;
MagickBooleanType
status;
XMLTreeInfo
*magic,
*magic_map,
*include;
/*
Load the magic map file.
*/
(void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
"Loading magic map \"%s\" ...",filename);
if (xml == (const char *) NULL)
return(MagickFalse);
if (magic_list == (LinkedListInfo *) NULL)
{
magic_list=NewLinkedList(0);
if (magic_list == (LinkedListInfo *) NULL)
{
ThrowFileException(exception,ResourceLimitError,
"MemoryAllocationFailed",filename);
return(MagickFalse);
}
}
magic_map=NewXMLTree(xml,exception);
if (magic_map == (XMLTreeInfo *) NULL)
return(MagickFalse);
status=MagickTrue;
include=GetXMLTreeChild(magic_map,"include");
while (include != (XMLTreeInfo *) NULL)
{
/*
Process include element.
*/
attribute=GetXMLTreeAttribute(include,"file");
if (attribute != (const char *) NULL)
{
if (depth > 200)
(void) ThrowMagickException(exception,GetMagickModule(),
ConfigureError,"IncludeElementNestedTooDeeply","`%s'",filename);
else
{
char
path[MaxTextExtent],
*xml;
GetPathComponent(filename,HeadPath,path);
if (*path != '\0')
(void) ConcatenateMagickString(path,DirectorySeparator,
MaxTextExtent);
(void) ConcatenateMagickString(path,attribute,MaxTextExtent);
xml=FileToString(path,~0,exception);
if (xml != (char *) NULL)
{
status=LoadMagicList(xml,path,depth+1,exception);
xml=DestroyString(xml);
}
}
}
include=GetNextXMLTreeTag(include);
}
magic=GetXMLTreeChild(magic_map,"magic");
while (magic != (XMLTreeInfo *) NULL)
{
const char
*attribute;
/*
Process magic element.
*/
magic_info=(MagicInfo *) AcquireMagickMemory(sizeof(*magic_info));
if (magic_info == (MagicInfo *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
(void) ResetMagickMemory(magic_info,0,sizeof(*magic_info));
magic_info->path=ConstantString(filename);
magic_info->signature=MagickSignature;
attribute=GetXMLTreeAttribute(magic,"name");
if (attribute != (const char *) NULL)
magic_info->name=ConstantString(attribute);
attribute=GetXMLTreeAttribute(magic,"offset");
if (attribute != (const char *) NULL)
magic_info->offset=(MagickOffsetType) atol(attribute);
attribute=GetXMLTreeAttribute(magic,"stealth");
if (attribute != (const char *) NULL)
magic_info->stealth=IsMagickTrue(attribute);
attribute=GetXMLTreeAttribute(magic,"target");
if (attribute != (const char *) NULL)
{
const char
*p;
register unsigned char
*q;
magic_info->target=ConstantString(attribute);
magic_info->magic=(unsigned char *) ConstantString(attribute);
q=magic_info->magic;
for (p=magic_info->target; *p != '\0'; )
{
if (*p == '\\')
{
p++;
if (isdigit((int) ((unsigned char) *p)) != 0)
{
char
*end;
*q++=(unsigned char) strtol(p,&end,8);
p+=(end-p);
magic_info->length++;
continue;
}
switch (*p)
{
case 'b': *q='\b'; break;
case 'f': *q='\f'; break;
case 'n': *q='\n'; break;
case 'r': *q='\r'; break;
case 't': *q='\t'; break;
case 'v': *q='\v'; break;
case 'a': *q='a'; break;
case '?': *q='\?'; break;
default: *q=(unsigned char) (*p); break;
}
p++;
q++;
magic_info->length++;
continue;
}
*q++=(unsigned char) (*p++);
magic_info->length++;
}
}
status=AppendValueToLinkedList(magic_list,magic_info);
if (status == MagickFalse)
(void) ThrowMagickException(exception,GetMagickModule(),
ResourceLimitError,"MemoryAllocationFailed","`%s'",filename);
magic=GetNextXMLTreeTag(magic);
}
magic_map=DestroyXMLTree(magic_map);
return(status);
}
