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imagemagick/magick/nt-base.c

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Import Upstream version 6.9.11.60
2023-02-03 21:16:55 +08:00
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N N TTTTT %
% NN N T %
% N N N T %
% N NN T %
% N N T %
% %
% %
% Windows NT Utility Methods for MagickCore %
% %
% Software Design %
% Cristy %
% December 1996 %
% %
% %
% Copyright 1999-2021 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 "magick/studio.h"
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
#include "magick/client.h"
#include "magick/exception-private.h"
#include "magick/image-private.h"
#include "magick/locale_.h"
#include "magick/log.h"
#include "magick/magick.h"
#include "magick/memory_.h"
#include "magick/memory-private.h"
#include "magick/nt-base.h"
#include "magick/nt-base-private.h"
#include "magick/resource_.h"
#include "magick/timer.h"
#include "magick/string_.h"
#include "magick/string-private.h"
#include "magick/utility.h"
#include "magick/utility-private.h"
#include "magick/version.h"
#if defined(MAGICKCORE_LTDL_DELEGATE)
# include "ltdl.h"
#endif
#if defined(MAGICKCORE_CIPHER_SUPPORT)
#include <ntsecapi.h>
#include <wincrypt.h>
#endif
/*
Define declarations.
*/
#if !defined(MAP_FAILED)
#define MAP_FAILED ((void *)(LONG_PTR) -1)
#endif
/*
Typdef declarations.
*/
/*
We need to make sure only one instance is created for each process and that
is why we wrap the new/delete instance methods.
From: http://www.ghostscript.com/doc/current/API.htm
"The Win32 DLL gsdll32.dll can be used by multiple programs simultaneously,
but only once within each process"
*/
typedef struct _NTGhostInfo
{
void
(MagickDLLCall *delete_instance)(gs_main_instance *);
int
(MagickDLLCall *new_instance)(gs_main_instance **, void *);
MagickBooleanType
has_instance;
} NTGhostInfo;
/*
Static declarations.
*/
#if !defined(MAGICKCORE_LTDL_DELEGATE)
static char
*lt_slsearchpath = (char *) NULL;
#endif
static NTGhostInfo
nt_ghost_info;
static GhostInfo
ghost_info;
static void
*ghost_handle = (void *) NULL;
static SemaphoreInfo
*ghost_semaphore = (SemaphoreInfo *) NULL,
*winsock_semaphore = (SemaphoreInfo *) NULL;
static WSADATA
*wsaData = (WSADATA*) NULL;
static size_t
long_paths_enabled = 2;
struct
{
const HKEY
hkey;
const char
*name;
}
const registry_roots[2] =
{
{ HKEY_CURRENT_USER, "HKEY_CURRENT_USER" },
{ HKEY_LOCAL_MACHINE, "HKEY_LOCAL_MACHINE" }
};
/*
External declarations.
*/
#if !defined(MAGICKCORE_WINDOWS_SUPPORT)
extern "C" BOOL WINAPI
DllMain(HINSTANCE handle,DWORD reason,LPVOID lpvReserved);
#endif
static void MagickDLLCall NTGhostscriptDeleteInstance(
gs_main_instance *instance)
{
LockSemaphoreInfo(ghost_semaphore);
nt_ghost_info.delete_instance(instance);
nt_ghost_info.has_instance=MagickFalse;
UnlockSemaphoreInfo(ghost_semaphore);
}
static int MagickDLLCall NTGhostscriptNewInstance(gs_main_instance **pinstance,
void *caller_handle)
{
int
status;
LockSemaphoreInfo(ghost_semaphore);
status=-1;
if (nt_ghost_info.has_instance == MagickFalse)
{
status=nt_ghost_info.new_instance(pinstance,caller_handle);
if (status >= 0)
nt_ghost_info.has_instance=MagickTrue;
}
UnlockSemaphoreInfo(ghost_semaphore);
return(status);
}
static inline char *create_utf8_string(const wchar_t *wideChar)
{
char
*utf8;
int
count;
count=WideCharToMultiByte(CP_UTF8,0,wideChar,-1,NULL,0,NULL,NULL);
if (count < 0)
return((char *) NULL);
utf8=(char *) AcquireQuantumMemory(count+1,sizeof(*utf8));
if (utf8 == (char *) NULL)
return((char *) NULL);
count=WideCharToMultiByte(CP_UTF8,0,wideChar,-1,utf8,count,NULL,NULL);
if (count == 0)
{
utf8=DestroyString(utf8);
return((char *) NULL);
}
utf8[count]=0;
return(utf8);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% D l l M a i n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DllMain() is an entry point to the DLL which is called when processes and
% threads are initialized and terminated, or upon calls to the Windows
% LoadLibrary and FreeLibrary functions.
%
% The function returns TRUE of it succeeds, or FALSE if initialization fails.
%
% The format of the DllMain method is:
%
% BOOL WINAPI DllMain(HINSTANCE handle,DWORD reason,LPVOID lpvReserved)
%
% A description of each parameter follows:
%
% o handle: handle to the DLL module
%
% o reason: reason for calling function:
%
% DLL_PROCESS_ATTACH - DLL is being loaded into virtual address
% space of current process.
% DLL_THREAD_ATTACH - Indicates that the current process is
% creating a new thread. Called under the
% context of the new thread.
% DLL_THREAD_DETACH - Indicates that the thread is exiting.
% Called under the context of the exiting
% thread.
% DLL_PROCESS_DETACH - Indicates that the DLL is being unloaded
% from the virtual address space of the
% current process.
%
% o lpvReserved: Used for passing additional info during DLL_PROCESS_ATTACH
% and DLL_PROCESS_DETACH.
%
*/
#if defined(_DLL) && defined(ProvideDllMain)
BOOL WINAPI DllMain(HINSTANCE handle,DWORD reason,LPVOID lpvReserved)
{
magick_unreferenced(lpvReserved);
switch (reason)
{
case DLL_PROCESS_ATTACH:
{
char
*module_path;
ssize_t
count;
wchar_t
*wide_path;
MagickCoreGenesis((const char*) NULL,MagickFalse);
wide_path=(wchar_t *) AcquireQuantumMemory(MaxTextExtent,
sizeof(*wide_path));
if (wide_path == (wchar_t *) NULL)
return(FALSE);
count=(ssize_t) GetModuleFileNameW(handle,wide_path,MaxTextExtent);
if (count != 0)
{
char
*path;
module_path=create_utf8_string(wide_path);
for ( ; count > 0; count--)
if (module_path[count] == '\\')
{
module_path[count+1]='\0';
break;
}
path=(char *) AcquireQuantumMemory(MaxTextExtent,16*sizeof(*path));
if (path == (char *) NULL)
{
module_path=DestroyString(module_path);
wide_path=(wchar_t *) RelinquishMagickMemory(wide_path);
return(FALSE);
}
count=(ssize_t) GetEnvironmentVariable("PATH",path,16*MaxTextExtent);
if ((count != 0) && (strstr(path,module_path) == (char *) NULL))
{
if ((strlen(module_path)+count+1) < (16*MaxTextExtent-1))
{
char
*variable;
variable=(char *) AcquireQuantumMemory(MaxTextExtent,
16*sizeof(*variable));
if (variable == (char *) NULL)
{
path=DestroyString(path);
module_path=DestroyString(module_path);
wide_path=(wchar_t *) RelinquishMagickMemory(wide_path);
return(FALSE);
}
(void) FormatLocaleString(variable,16*MaxTextExtent,
"%s;%s",module_path,path);
SetEnvironmentVariable("PATH",variable);
variable=DestroyString(variable);
}
}
path=DestroyString(path);
module_path=DestroyString(module_path);
}
wide_path=(wchar_t *) RelinquishMagickMemory(wide_path);
break;
}
case DLL_PROCESS_DETACH:
{
MagickCoreTerminus();
break;
}
default:
break;
}
return(TRUE);
}
#endif
#if !defined(__MINGW32__)
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% g e t t i m e o f d a y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% The gettimeofday() method get the time of day.
%
% The format of the gettimeofday method is:
%
% int gettimeofday(struct timeval *time_value,struct timezone *time_zone)
%
% A description of each parameter follows:
%
% o time_value: the time value.
%
% o time_zone: the time zone.
%
*/
MagickPrivate int gettimeofday (struct timeval *time_value,
struct timezone *time_zone)
{
#define EpochFiletime MagickLLConstant(116444736000000000)
static int
is_tz_set;
if (time_value != (struct timeval *) NULL)
{
FILETIME
file_time;
__int64
time;
LARGE_INTEGER
date_time;
GetSystemTimeAsFileTime(&file_time);
date_time.LowPart=file_time.dwLowDateTime;
date_time.HighPart=file_time.dwHighDateTime;
time=date_time.QuadPart;
time-=EpochFiletime;
time/=10;
time_value->tv_sec=(ssize_t) (time / 1000000);
time_value->tv_usec=(ssize_t) (time % 1000000);
}
if (time_zone != (struct timezone *) NULL)
{
if (is_tz_set == 0)
{
_tzset();
is_tz_set++;
}
time_zone->tz_minuteswest=_timezone/60;
time_zone->tz_dsttime=_daylight;
}
return(0);
}
#endif
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T A r g v T o U T F 8 %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTArgvToUTF8() converts the wide command line arguments to UTF-8 to ensure
% compatibility with Linux.
%
% The format of the NTArgvToUTF8 method is:
%
% char **NTArgvToUTF8(const int argc,wchar_t **argv)
%
% A description of each parameter follows:
%
% o argc: the number of command line arguments.
%
% o argv: the wide-character command line arguments.
%
*/
MagickPrivate char **NTArgvToUTF8(const int argc,wchar_t **argv)
{
char
**utf8;
ssize_t
i;
utf8=(char **) AcquireQuantumMemory(argc,sizeof(*utf8));
if (utf8 == (char **) NULL)
ThrowFatalException(ResourceLimitFatalError,"UnableToConvertStringToARGV");
for (i=0; i < (ssize_t) argc; i++)
{
utf8[i]=create_utf8_string(argv[i]);
if (utf8[i] == (char *) NULL)
{
for (i--; i >= 0; i--)
utf8[i]=DestroyString(utf8[i]);
ThrowFatalException(ResourceLimitFatalError,
"UnableToConvertStringToARGV");
}
}
return(utf8);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T C l o s e D i r e c t o r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTCloseDirectory() closes the named directory stream and frees the DIR
% structure.
%
% The format of the NTCloseDirectory method is:
%
% int NTCloseDirectory(DIR *entry)
%
% A description of each parameter follows:
%
% o entry: Specifies a pointer to a DIR structure.
%
*/
MagickPrivate int NTCloseDirectory(DIR *entry)
{
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
assert(entry != (DIR *) NULL);
FindClose(entry->hSearch);
entry=(DIR *) RelinquishMagickMemory(entry);
return(0);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T C l o s e L i b r a r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTCloseLibrary() unloads the module associated with the passed handle.
%
% The format of the NTCloseLibrary method is:
%
% void NTCloseLibrary(void *handle)
%
% A description of each parameter follows:
%
% o handle: Specifies a handle to a previously loaded dynamic module.
%
*/
MagickPrivate int NTCloseLibrary(void *handle)
{
return(!(FreeLibrary((HINSTANCE) handle)));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T C o n t r o l H a n d l e r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTControlHandler() registers a control handler that is activated when, for
% example, a ctrl-c is received.
%
% The format of the NTControlHandler method is:
%
% int NTControlHandler(void)
%
*/
static BOOL ControlHandler(DWORD type)
{
(void) type;
AsynchronousResourceComponentTerminus();
return(FALSE);
}
MagickPrivate int NTControlHandler(void)
{
return(SetConsoleCtrlHandler((PHANDLER_ROUTINE) ControlHandler,TRUE));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T E l a p s e d T i m e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTElapsedTime() returns the elapsed time (in seconds) since the last call to
% StartTimer().
%
% The format of the ElapsedTime method is:
%
% double NTElapsedTime(void)
%
*/
MagickPrivate double NTElapsedTime(void)
{
union
{
FILETIME
filetime;
__int64
filetime64;
} elapsed_time;
LARGE_INTEGER
performance_count;
static LARGE_INTEGER
frequency = { 0 };
SYSTEMTIME
system_time;
if (frequency.QuadPart == 0)
{
if (QueryPerformanceFrequency(&frequency) == 0)
frequency.QuadPart=1;
}
if (frequency.QuadPart > 1)
{
QueryPerformanceCounter(&performance_count);
return((double) performance_count.QuadPart/frequency.QuadPart);
}
GetSystemTime(&system_time);
SystemTimeToFileTime(&system_time,&elapsed_time.filetime);
return((double) 1.0e-7*elapsed_time.filetime64);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ N T E r r o r H a n d l e r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTErrorHandler() displays an error reason and then terminates the program.
%
% The format of the NTErrorHandler method is:
%
% void NTErrorHandler(const ExceptionType severity,const char *reason,
% const char *description)
%
% A description of each parameter follows:
%
% o severity: Specifies the numeric error category.
%
% o reason: Specifies the reason to display before terminating the
% program.
%
% o description: Specifies any description to the reason.
%
*/
MagickPrivate void NTErrorHandler(const ExceptionType severity,
const char *reason,const char *description)
{
char
buffer[3*MaxTextExtent],
*message;
(void) severity;
if (reason == (char *) NULL)
{
MagickCoreTerminus();
exit(0);
}
message=GetExceptionMessage(errno);
if ((description != (char *) NULL) && errno)
(void) FormatLocaleString(buffer,MaxTextExtent,"%s: %s (%s) [%s].\n",
GetClientName(),reason,description,message);
else
if (description != (char *) NULL)
(void) FormatLocaleString(buffer,MaxTextExtent,"%s: %s (%s).\n",
GetClientName(),reason,description);
else
if (errno != 0)
(void) FormatLocaleString(buffer,MaxTextExtent,"%s: %s [%s].\n",
GetClientName(),reason,message);
else
(void) FormatLocaleString(buffer,MaxTextExtent,"%s: %s.\n",
GetClientName(),reason);
message=DestroyString(message);
(void) MessageBox(NULL,buffer,"ImageMagick Exception",MB_OK | MB_TASKMODAL |
MB_SETFOREGROUND | MB_ICONEXCLAMATION);
MagickCoreTerminus();
exit(0);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T E x i t L i b r a r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTExitLibrary() exits the dynamic module loading subsystem.
%
% The format of the NTExitLibrary method is:
%
% int NTExitLibrary(void)
%
*/
MagickPrivate int NTExitLibrary(void)
{
return(0);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G a t h e r R a n d o m D a t a %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTGatherRandomData() gathers random data and returns it.
%
% The format of the GatherRandomData method is:
%
% MagickBooleanType NTGatherRandomData(const size_t length,
% unsigned char *random)
%
% A description of each parameter follows:
%
% length: the length of random data buffer
%
% random: the random data is returned here.
%
*/
MagickPrivate MagickBooleanType NTGatherRandomData(const size_t length,
unsigned char *random)
{
#if defined(MAGICKCORE_CIPHER_SUPPORT) && defined(_MSC_VER) && (_MSC_VER > 1200)
HCRYPTPROV
handle;
int
status;
handle=(HCRYPTPROV) NULL;
status=CryptAcquireContext(&handle,NULL,MS_DEF_PROV,PROV_RSA_FULL,
(CRYPT_VERIFYCONTEXT | CRYPT_MACHINE_KEYSET));
if (status == 0)
status=CryptAcquireContext(&handle,NULL,MS_DEF_PROV,PROV_RSA_FULL,
(CRYPT_VERIFYCONTEXT | CRYPT_MACHINE_KEYSET | CRYPT_NEWKEYSET));
if (status == 0)
return(MagickFalse);
status=CryptGenRandom(handle,(DWORD) length,random);
if (status == 0)
{
status=CryptReleaseContext(handle,0);
return(MagickFalse);
}
status=CryptReleaseContext(handle,0);
if (status == 0)
return(MagickFalse);
#else
(void) random;
(void) length;
#endif
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G e t E x e c u t i o n P a t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTGetExecutionPath() returns the execution path of a program.
%
% The format of the GetExecutionPath method is:
%
% MagickBooleanType NTGetExecutionPath(char *path,const size_t extent)
%
% A description of each parameter follows:
%
% o path: the pathname of the executable that started the process.
%
% o extent: the maximum extent of the path.
%
*/
MagickPrivate MagickBooleanType NTGetExecutionPath(char *path,
const size_t extent)
{
wchar_t
wide_path[MaxTextExtent];
(void) GetModuleFileNameW((HMODULE) NULL,wide_path,(DWORD) extent);
(void) WideCharToMultiByte(CP_UTF8,0,wide_path,-1,path,(int) extent,NULL,
NULL);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G e t L a s t E r r o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTGetLastError() returns the last error that occurred.
%
% The format of the NTGetLastError method is:
%
% char *NTGetLastError(void)
%
*/
char *NTGetLastError(void)
{
char
*reason;
int
status;
LPVOID
buffer;
status=FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM,NULL,GetLastError(),
MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),(LPTSTR) &buffer,0,NULL);
if (!status)
reason=AcquireString("An unknown error occurred");
else
{
reason=AcquireString((const char *) buffer);
LocalFree(buffer);
}
return(reason);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G e t L i b r a r y E r r o r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Lt_dlerror() returns a pointer to a string describing the last error
% associated with a lt_dl method. Note that this function is not thread
% safe so it should only be used under the protection of a lock.
%
% The format of the NTGetLibraryError method is:
%
% const char *NTGetLibraryError(void)
%
*/
MagickPrivate const char *NTGetLibraryError(void)
{
static char
last_error[MaxTextExtent];
char
*error;
*last_error='\0';
error=NTGetLastError();
if (error)
(void) CopyMagickString(last_error,error,MaxTextExtent);
error=DestroyString(error);
return(last_error);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G e t L i b r a r y S y m b o l %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTGetLibrarySymbol() retrieve the procedure address of the method
% specified by the passed character string.
%
% The format of the NTGetLibrarySymbol method is:
%
% void *NTGetLibrarySymbol(void *handle,const char *name)
%
% A description of each parameter follows:
%
% o handle: Specifies a handle to the previously loaded dynamic module.
%
% o name: Specifies the procedure entry point to be returned.
%
*/
void *NTGetLibrarySymbol(void *handle,const char *name)
{
FARPROC
proc_address;
proc_address=GetProcAddress((HMODULE) handle,(LPCSTR) name);
if (proc_address == (FARPROC) NULL)
return((void *) NULL);
return((void *) proc_address);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G e t M o d u l e P a t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTGetModulePath() returns the path of the specified module.
%
% The format of the GetModulePath method is:
%
% MagickBooleanType NTGetModulePath(const char *module,char *path)
%
% A description of each parameter follows:
%
% modith: the module name.
%
% path: the module path is returned here.
%
*/
MagickPrivate MagickBooleanType NTGetModulePath(const char *module,char *path)
{
char
module_path[MaxTextExtent];
HMODULE
handle;
ssize_t
length;
*path='\0';
handle=GetModuleHandle(module);
if (handle == (HMODULE) NULL)
return(MagickFalse);
length=GetModuleFileName(handle,module_path,MaxTextExtent);
if (length != 0)
GetPathComponent(module_path,HeadPath,path);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G h o s t s c r i p t D L L %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTGhostscriptDLL() returns the path to the most recent Ghostscript version
% DLL. The method returns TRUE on success otherwise FALSE.
%
% The format of the NTGhostscriptDLL method is:
%
% int NTGhostscriptDLL(char *path,int length)
%
% A description of each parameter follows:
%
% o path: return the Ghostscript DLL path here.
%
% o length: the buffer length.
%
*/
static int NTGetRegistryValue(HKEY root,const char *key,DWORD flags,const char *name,
char *value,int *length)
{
BYTE
byte,
*p;
DWORD
extent,
type;
HKEY
hkey;
LONG
status;
/*
Get a registry value: key = root\\key, named value = name.
*/
if (RegOpenKeyExA(root,key,0,KEY_READ | flags,&hkey) != ERROR_SUCCESS)
return(1); /* no match */
p=(BYTE *) value;
type=REG_SZ;
extent=(*length);
if (p == (BYTE *) NULL)
p=(&byte); /* ERROR_MORE_DATA only if value is NULL */
status=RegQueryValueExA(hkey,(char *) name,0,&type,p,&extent);
RegCloseKey(hkey);
if (status == ERROR_SUCCESS)
{
*length=extent;
return(0); /* return the match */
}
if (status == ERROR_MORE_DATA)
{
*length=extent;
return(-1); /* buffer not large enough */
}
return(1); /* not found */
}
static int NTLocateGhostscript(DWORD flags,int *root_index,
const char **product_family,int *major_version,int *minor_version,
int *patch_version)
{
int
i;
MagickBooleanType
status;
static const char
*products[4] =
{
"GPL Ghostscript",
"GNU Ghostscript",
"AFPL Ghostscript",
"Aladdin Ghostscript"
};
/*
Find the most recent version of Ghostscript.
*/
status=MagickFalse;
*root_index=0;
*product_family=NULL;
*major_version=5;
*minor_version=49; /* min version of Ghostscript is 5.50 */
for (i=0; i < (ssize_t) (sizeof(products)/sizeof(products[0])); i++)
{
char
key[MaxTextExtent];
HKEY
hkey;
int
j;
REGSAM
mode;
(void) FormatLocaleString(key,MaxTextExtent,"SOFTWARE\\%s",products[i]);
for (j=0; j < (ssize_t) (sizeof(registry_roots)/sizeof(registry_roots[0]));
j++)
{
mode=KEY_READ | flags;
if (RegOpenKeyExA(registry_roots[j].hkey,key,0,mode,&hkey) ==
ERROR_SUCCESS)
{
DWORD
extent;
int
k;
/*
Now enumerate the keys.
*/
extent=sizeof(key)/sizeof(char);
for (k=0; RegEnumKeyA(hkey,k,key,extent) == ERROR_SUCCESS; k++)
{
int
major,
minor,
patch;
major=0;
minor=0;
patch=0;
if (sscanf(key,"%d.%d.%d",&major,&minor,&patch) != 3)
if (sscanf(key,"%d.%d",&major,&minor) != 2)
continue;
if ((major > *major_version) ||
((major == *major_version) && (minor > *minor_version)) ||
((minor == *minor_version) && (patch > *patch_version)))
{
*root_index=j;
*product_family=products[i];
*major_version=major;
*minor_version=minor;
*patch_version=patch;
status=MagickTrue;
}
}
(void) RegCloseKey(hkey);
}
}
}
if (status == MagickFalse)
{
*major_version=0;
*minor_version=0;
*patch_version=0;
}
(void) LogMagickEvent(ConfigureEvent,GetMagickModule(),"Ghostscript (%s) "
"version %d.%d.%d",*product_family,*major_version,*minor_version,*patch_version);
return(status);
}
static int NTGhostscriptGetString(const char *name,BOOL *is_64_bit,char *value,
const size_t length)
{
char
buffer[MaxTextExtent],
*directory;
int
extent;
static const char
*product_family = (const char *) NULL;
static BOOL
is_64_bit_version = FALSE;
static int
flags = 0,
major_version = 0,
minor_version = 0,
patch_version = 0,
root_index = 0;
/*
Get a string from the installed Ghostscript.
*/
*value='\0';
directory=(char *) NULL;
if (LocaleCompare(name,"GS_DLL") == 0)
{
directory=GetEnvironmentValue("MAGICK_GHOSTSCRIPT_PATH");
if (directory != (char *) NULL)
{
(void) FormatLocaleString(buffer,MaxTextExtent,"%s%sgsdll64.dll",
directory,DirectorySeparator);
if (IsPathAccessible(buffer) != MagickFalse)
{
directory=DestroyString(directory);
(void) CopyMagickString(value,buffer,length);
if (is_64_bit != NULL)
*is_64_bit=TRUE;
return(TRUE);
}
(void) FormatLocaleString(buffer,MaxTextExtent,"%s%sgsdll32.dll",
directory,DirectorySeparator);
if (IsPathAccessible(buffer) != MagickFalse)
{
directory=DestroyString(directory);
(void) CopyMagickString(value,buffer,length);
if (is_64_bit != NULL)
*is_64_bit=FALSE;
return(TRUE);
}
return(FALSE);
}
}
if (product_family == NULL)
{
flags=0;
#if defined(KEY_WOW64_32KEY)
#if defined(_WIN64)
flags=KEY_WOW64_64KEY;
#else
flags=KEY_WOW64_32KEY;
#endif
(void) NTLocateGhostscript(flags,&root_index,&product_family,
&major_version,&minor_version,&patch_version);
if (product_family == NULL)
#if defined(_WIN64)
flags=KEY_WOW64_32KEY;
else
is_64_bit_version=TRUE;
#else
flags=KEY_WOW64_64KEY;
#endif
#endif
}
if (product_family == NULL)
{
(void) NTLocateGhostscript(flags,&root_index,&product_family,
&major_version,&minor_version,&patch_version);
#if !defined(_WIN64)
is_64_bit_version=TRUE;
#endif
}
if (product_family == NULL)
return(FALSE);
if (is_64_bit != NULL)
*is_64_bit=is_64_bit_version;
extent=(int) length;
(void) FormatLocaleString(buffer,MagickPathExtent,"SOFTWARE\\%s\\%d.%d.%d",
product_family,major_version,minor_version,patch_version);
if (NTGetRegistryValue(registry_roots[root_index].hkey,buffer,flags,name,value,&extent) != 0)
{
extent=(int) length;
(void) FormatLocaleString(buffer,MagickPathExtent,"SOFTWARE\\%s\\%d.%02d",
product_family,major_version,minor_version);
if (NTGetRegistryValue(registry_roots[root_index].hkey,buffer,flags,name,value,&extent) != 0)
return(FALSE);
}
(void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
"registry: \"%s\\%s\\%s\"=\"%s\"",registry_roots[root_index].name,
buffer,name,value);
return(TRUE);
}
MagickPrivate int NTGhostscriptDLL(char *path,int length)
{
static char
dll[MaxTextExtent] = { "" };
static BOOL
is_64_bit_version;
*path='\0';
if ((*dll == '\0') &&
(NTGhostscriptGetString("GS_DLL",&is_64_bit_version,dll,sizeof(dll)) == FALSE))
return(FALSE);
#if defined(_WIN64)
if (!is_64_bit_version)
return(FALSE);
#else
if (is_64_bit_version)
return(FALSE);
#endif
(void) CopyMagickString(path,dll,length);
return(TRUE);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G h o s t s c r i p t D L L V e c t o r s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTGhostscriptDLLVectors() returns a GhostInfo structure that includes
% function vectors to invoke Ghostscript DLL functions. A null pointer is
% returned if there is an error when loading the DLL or retrieving the
% function vectors.
%
% The format of the NTGhostscriptDLLVectors method is:
%
% const GhostInfo *NTGhostscriptDLLVectors(void)
%
*/
MagickPrivate const GhostInfo *NTGhostscriptDLLVectors(void)
{
if (NTGhostscriptLoadDLL() == FALSE)
return((GhostInfo *) NULL);
return(&ghost_info);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G h o s t s c r i p t E X E %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTGhostscriptEXE() obtains the path to the latest Ghostscript executable.
% The method returns FALSE if a full path value is not obtained and returns
% a default path of gswin32c.exe.
%
% The format of the NTGhostscriptEXE method is:
%
% int NTGhostscriptEXE(char *path,int length)
%
% A description of each parameter follows:
%
% o path: return the Ghostscript executable path here.
%
% o length: length of buffer.
%
*/
MagickPrivate int NTGhostscriptEXE(char *path,int length)
{
char
*p;
static char
program[MaxTextExtent] = { "" };
static BOOL
is_64_bit_version = FALSE;
if (*program == '\0')
{
if (ghost_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&ghost_semaphore);
LockSemaphoreInfo(ghost_semaphore);
if (*program == '\0')
{
if (NTGhostscriptGetString("GS_DLL",&is_64_bit_version,program,
sizeof(program)) == FALSE)
{
UnlockSemaphoreInfo(ghost_semaphore);
#if defined(_WIN64)
(void) CopyMagickString(program,"gswin64c.exe",sizeof(program));
#else
(void) CopyMagickString(program,"gswin32c.exe",sizeof(program));
#endif
(void) CopyMagickString(path,program,length);
return(FALSE);
}
p=strrchr(program,'\\');
if (p != (char *) NULL)
{
p++;
*p='\0';
(void) ConcatenateMagickString(program,is_64_bit_version ?
"gswin64c.exe" : "gswin32c.exe",sizeof(program));
}
}
UnlockSemaphoreInfo(ghost_semaphore);
}
(void) CopyMagickString(path,program,length);
return(TRUE);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G h o s t s c r i p t F o n t s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTGhostscriptFonts() obtains the path to the Ghostscript fonts. The method
% returns FALSE if it cannot determine the font path.
%
% The format of the NTGhostscriptFonts method is:
%
% int NTGhostscriptFonts(char *path,int length)
%
% A description of each parameter follows:
%
% o path: return the font path here.
%
% o length: length of the path buffer.
%
*/
MagickPrivate int NTGhostscriptFonts(char *path,int length)
{
char
buffer[MaxTextExtent],
*directory,
filename[MaxTextExtent];
char
*p,
*q;
*path='\0';
directory=GetEnvironmentValue("MAGICK_GHOSTSCRIPT_FONT_PATH");
if (directory != (char *) NULL)
{
(void) CopyMagickString(buffer,directory,MaxTextExtent);
directory=DestroyString(directory);
}
else
{
if (NTGhostscriptGetString("GS_LIB",NULL,buffer,MaxTextExtent) == FALSE)
return(FALSE);
}
for (p=buffer-1; p != (char *) NULL; p=strchr(p+1,DirectoryListSeparator))
{
(void) CopyMagickString(path,p+1,length+1);
q=strchr(path,DirectoryListSeparator);
if (q != (char *) NULL)
*q='\0';
(void) FormatLocaleString(filename,MaxTextExtent,"%s%sfonts.dir",path,
DirectorySeparator);
if (IsPathAccessible(filename) != MagickFalse)
return(TRUE);
(void) FormatLocaleString(filename,MaxTextExtent,"%s%sn019003l.pfb",path,
DirectorySeparator);
if (IsPathAccessible(filename) != MagickFalse)
return(TRUE);
}
*path='\0';
return(FALSE);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G h o s t s c r i p t L o a d D L L %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTGhostscriptLoadDLL() attempts to load the Ghostscript DLL and returns
% TRUE if it succeeds.
%
% The format of the NTGhostscriptLoadDLL method is:
%
% int NTGhostscriptLoadDLL(void)
%
*/
static inline int NTGhostscriptHasValidHandle()
{
if ((nt_ghost_info.delete_instance == NULL) || (ghost_info.exit == NULL) ||
(ghost_info.init_with_args == NULL) ||
(nt_ghost_info.new_instance == NULL) ||
(ghost_info.run_string == NULL) || (ghost_info.set_stdio == NULL) ||
(ghost_info.revision == NULL))
{
return(FALSE);
}
return(TRUE);
}
MagickPrivate int NTGhostscriptLoadDLL(void)
{
char
path[MaxTextExtent];
if (ghost_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&ghost_semaphore);
LockSemaphoreInfo(ghost_semaphore);
if (ghost_handle != (void *) NULL)
{
UnlockSemaphoreInfo(ghost_semaphore);
return(NTGhostscriptHasValidHandle());
}
if (NTGhostscriptDLL(path,sizeof(path)) == FALSE)
{
UnlockSemaphoreInfo(ghost_semaphore);
return(FALSE);
}
ghost_handle=lt_dlopen(path);
if (ghost_handle == (void *) NULL)
{
UnlockSemaphoreInfo(ghost_semaphore);
return(FALSE);
}
(void) memset((void *) &nt_ghost_info,0,sizeof(NTGhostInfo));
nt_ghost_info.delete_instance=(void (MagickDLLCall *)(gs_main_instance *)) (
lt_dlsym(ghost_handle,"gsapi_delete_instance"));
nt_ghost_info.new_instance=(int (MagickDLLCall *)(gs_main_instance **,
void *)) (lt_dlsym(ghost_handle,"gsapi_new_instance"));
nt_ghost_info.has_instance=MagickFalse;
(void) memset((void *) &ghost_info,0,sizeof(GhostInfo));
ghost_info.delete_instance=NTGhostscriptDeleteInstance;
ghost_info.exit=(int (MagickDLLCall *)(gs_main_instance*))
lt_dlsym(ghost_handle,"gsapi_exit");
ghost_info.init_with_args=(int (MagickDLLCall *)(gs_main_instance *,int,
char **)) (lt_dlsym(ghost_handle,"gsapi_init_with_args"));
ghost_info.new_instance=NTGhostscriptNewInstance;
ghost_info.run_string=(int (MagickDLLCall *)(gs_main_instance *,const char *,
int,int *)) (lt_dlsym(ghost_handle,"gsapi_run_string"));
ghost_info.set_stdio=(int (MagickDLLCall *)(gs_main_instance *,int(
MagickDLLCall *)(void *,char *,int),int(MagickDLLCall *)(void *,
const char *,int),int(MagickDLLCall *)(void *,const char *,int)))
(lt_dlsym(ghost_handle,"gsapi_set_stdio"));
ghost_info.revision=(int (MagickDLLCall *)(gsapi_revision_t *,int)) (
lt_dlsym(ghost_handle,"gsapi_revision"));
UnlockSemaphoreInfo(ghost_semaphore);
return(NTGhostscriptHasValidHandle());
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T G h o s t s c r i p t U n L o a d D L L %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTGhostscriptUnLoadDLL() unloads the Ghostscript DLL and returns TRUE if
% it succeeds.
%
% The format of the NTGhostscriptUnLoadDLL method is:
%
% int NTGhostscriptUnLoadDLL(void)
%
*/
MagickPrivate int NTGhostscriptUnLoadDLL(void)
{
int
status;
if (ghost_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&ghost_semaphore);
LockSemaphoreInfo(ghost_semaphore);
status=FALSE;
if (ghost_handle != (void *) NULL)
{
status=lt_dlclose(ghost_handle);
ghost_handle=(void *) NULL;
(void) memset((void *) &ghost_info,0,sizeof(GhostInfo));
}
UnlockSemaphoreInfo(ghost_semaphore);
DestroySemaphoreInfo(&ghost_semaphore);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T I n i t i a l i z e L i b r a r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTInitializeLibrary() initializes the dynamic module loading subsystem.
%
% The format of the NTInitializeLibrary method is:
%
% int NTInitializeLibrary(void)
%
*/
MagickPrivate int NTInitializeLibrary(void)
{
return(0);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T I n i t i a l i z e W i n s o c k %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTInitializeWinsock() initializes Winsock.
%
% The format of the NTInitializeWinsock method is:
%
% void NTInitializeWinsock(void)
%
*/
MagickPrivate void NTInitializeWinsock(MagickBooleanType use_lock)
{
if (use_lock)
{
if (winsock_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&winsock_semaphore);
LockSemaphoreInfo(winsock_semaphore);
}
if (wsaData == (WSADATA *) NULL)
{
wsaData=(WSADATA *) AcquireMagickMemory(sizeof(WSADATA));
if (WSAStartup(MAKEWORD(2,2),wsaData) != 0)
ThrowFatalException(CacheFatalError,"WSAStartup failed");
}
if (use_lock)
UnlockSemaphoreInfo(winsock_semaphore);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T L o n g P a t h s E n a b l e d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTLongPathsEnabled() returns a boolean indicating whether long paths are
$ enabled.
%
% The format of the NTLongPathsEnabled method is:
%
% MagickBooleanType NTLongPathsEnabled()
%
*/
MagickExport MagickBooleanType NTLongPathsEnabled()
{
if (long_paths_enabled == 2)
{
DWORD
size,
type,
value;
HKEY
registry_key;
LONG
status;
registry_key=(HKEY) INVALID_HANDLE_VALUE;
status=RegOpenKeyExA(HKEY_LOCAL_MACHINE,
"SYSTEM\\CurrentControlSet\\Control\\FileSystem",0,KEY_READ,
&registry_key);
if (status != ERROR_SUCCESS)
{
long_paths_enabled=0;
RegCloseKey(registry_key);
return(MagickFalse);
}
value=0;
status=RegQueryValueExA(registry_key,"LongPathsEnabled",0,&type,NULL,
NULL);
if ((status != ERROR_SUCCESS) || (type != REG_DWORD))
{
long_paths_enabled=0;
RegCloseKey(registry_key);
return(MagickFalse);
}
status=RegQueryValueExA(registry_key,"LongPathsEnabled",0,&type,
(LPBYTE) &value,&size);
RegCloseKey(registry_key);
if (status != ERROR_SUCCESS)
{
long_paths_enabled=0;
return(MagickFalse);
}
long_paths_enabled=(size_t) value;
}
return(long_paths_enabled == 1 ? MagickTrue : MagickFalse);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ N T M a p M e m o r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTMapMemory() emulates the Unix method of the same name.
%
% The format of the NTMapMemory method is:
%
% void *NTMapMemory(char *address,size_t length,int protection,int access,
% int file,MagickOffsetType offset)
%
*/
MagickPrivate void *NTMapMemory(char *address,size_t length,int protection,
int flags,int file,MagickOffsetType offset)
{
DWORD
access_mode,
high_length,
high_offset,
low_length,
low_offset,
protection_mode;
HANDLE
file_handle,
map_handle;
void
*map;
(void) address;
access_mode=0;
file_handle=INVALID_HANDLE_VALUE;
low_length=(DWORD) (length & 0xFFFFFFFFUL);
high_length=(DWORD) ((((MagickOffsetType) length) >> 32) & 0xFFFFFFFFUL);
map_handle=INVALID_HANDLE_VALUE;
map=(void *) NULL;
low_offset=(DWORD) (offset & 0xFFFFFFFFUL);
high_offset=(DWORD) ((offset >> 32) & 0xFFFFFFFFUL);
protection_mode=0;
if (protection & PROT_WRITE)
{
access_mode=FILE_MAP_WRITE;
if (!(flags & MAP_PRIVATE))
protection_mode=PAGE_READWRITE;
else
{
access_mode=FILE_MAP_COPY;
protection_mode=PAGE_WRITECOPY;
}
}
else
if (protection & PROT_READ)
{
access_mode=FILE_MAP_READ;
protection_mode=PAGE_READONLY;
}
if ((file == -1) && (flags & MAP_ANONYMOUS))
file_handle=INVALID_HANDLE_VALUE;
else
file_handle=(HANDLE) _get_osfhandle(file);
map_handle=CreateFileMapping(file_handle,0,protection_mode,high_length,
low_length,0);
if (map_handle)
{
map=(void *) MapViewOfFile(map_handle,access_mode,high_offset,low_offset,
length);
CloseHandle(map_handle);
}
if (map == (void *) NULL)
return((void *) ((char *) MAP_FAILED));
return((void *) ((char *) map));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T O p e n D i r e c t o r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTOpenDirectory() opens the directory named by filename and associates a
% directory stream with it.
%
% The format of the NTOpenDirectory method is:
%
% DIR *NTOpenDirectory(const char *path)
%
% A description of each parameter follows:
%
% o entry: Specifies a pointer to a DIR structure.
%
*/
MagickPrivate DIR *NTOpenDirectory(const char *path)
{
DIR
*entry;
size_t
length;
wchar_t
directory_separator[MaxTextExtent],
file_specification[MaxTextExtent];
assert(path != (const char *) NULL);
length=MultiByteToWideChar(CP_UTF8,0,path,-1,file_specification,
MaxTextExtent);
if (length == 0)
return((DIR *) NULL);
length=MultiByteToWideChar(CP_UTF8,0,DirectorySeparator,-1,
directory_separator,(int) strlen(DirectorySeparator)+1);
if (length == 0)
return((DIR *) NULL);
if (wcsncat(file_specification,directory_separator,
MaxTextExtent-wcslen(file_specification)-1) == (wchar_t *) NULL)
return((DIR *) NULL);
entry=(DIR *) AcquireCriticalMemory(sizeof(DIR));
entry->firsttime=TRUE;
entry->hSearch=FindFirstFileW(file_specification,&entry->Win32FindData);
if (entry->hSearch == INVALID_HANDLE_VALUE)
{
if(wcsncat(file_specification,L"*.*",
MaxTextExtent-wcslen(file_specification)-1) == (wchar_t*) NULL)
{
entry=(DIR *) RelinquishMagickMemory(entry);
return((DIR *) NULL);
}
entry->hSearch=FindFirstFileW(file_specification,&entry->Win32FindData);
if (entry->hSearch == INVALID_HANDLE_VALUE)
{
entry=(DIR *) RelinquishMagickMemory(entry);
return((DIR *) NULL);
}
}
return(entry);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T O p e n L i b r a r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTOpenLibrary() loads a dynamic module into memory and returns a handle that
% can be used to access the various procedures in the module.
%
% The format of the NTOpenLibrary method is:
%
% void *NTOpenLibrary(const char *filename)
%
% A description of each parameter follows:
%
% o path: Specifies a pointer to string representing dynamic module that
% is to be loaded.
%
*/
static inline const char *GetSearchPath(void)
{
#if defined(MAGICKCORE_LTDL_DELEGATE)
return(lt_dlgetsearchpath());
#else
return(lt_slsearchpath);
#endif
}
static UINT ChangeErrorMode(void)
{
typedef UINT
(CALLBACK *GETERRORMODE)(void);
GETERRORMODE
getErrorMode;
HMODULE
handle;
UINT
mode;
mode=SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX;
handle=GetModuleHandle("kernel32.dll");
if (handle == (HMODULE) NULL)
return SetErrorMode(mode);
getErrorMode=(GETERRORMODE) NTGetLibrarySymbol(handle,"GetErrorMode");
if (getErrorMode != (GETERRORMODE) NULL)
mode=getErrorMode() | SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX;
return SetErrorMode(mode);
}
static inline void *NTLoadLibrary(const char *filename)
{
int
length;
wchar_t
path[MaxTextExtent];
length=MultiByteToWideChar(CP_UTF8,0,filename,-1,path,MaxTextExtent);
if (length == 0)
return((void *) NULL);
return (void *) LoadLibraryExW(path,NULL,LOAD_WITH_ALTERED_SEARCH_PATH);
}
MagickPrivate void *NTOpenLibrary(const char *filename)
{
char
path[MaxTextExtent];
const char
*p,
*q;
UINT
mode;
void
*handle;
mode=ChangeErrorMode();
handle=NTLoadLibrary(filename);
if (handle == (void *) NULL)
{
p=GetSearchPath();
while (p != (const char*) NULL)
{
q=strchr(p,DirectoryListSeparator);
if (q != (const char*) NULL)
(void) CopyMagickString(path,p,q-p+1);
else
(void) CopyMagickString(path,p,MaxTextExtent);
(void) ConcatenateMagickString(path,DirectorySeparator,MaxTextExtent);
(void) ConcatenateMagickString(path,filename,MaxTextExtent);
handle=NTLoadLibrary(path);
if (handle != (void *) NULL || q == (const char*) NULL)
break;
p=q+1;
}
}
SetErrorMode(mode);
return(handle);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T R e a d D i r e c t o r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTReadDirectory() returns a pointer to a structure representing the
% directory entry at the current position in the directory stream to which
% entry refers.
%
% The format of the NTReadDirectory
%
% NTReadDirectory(entry)
%
% A description of each parameter follows:
%
% o entry: Specifies a pointer to a DIR structure.
%
*/
MagickPrivate struct dirent *NTReadDirectory(DIR *entry)
{
int
status;
size_t
length;
if (entry == (DIR *) NULL)
return((struct dirent *) NULL);
if (!entry->firsttime)
{
status=FindNextFileW(entry->hSearch,&entry->Win32FindData);
if (status == 0)
return((struct dirent *) NULL);
}
length=WideCharToMultiByte(CP_UTF8,0,entry->Win32FindData.cFileName,-1,
entry->file_info.d_name,sizeof(entry->file_info.d_name),NULL,NULL);
if (length == 0)
return((struct dirent *) NULL);
entry->firsttime=FALSE;
entry->file_info.d_namlen=(int) strlen(entry->file_info.d_name);
return(&entry->file_info);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T R e g i s t r y K e y L o o k u p %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTRegistryKeyLookup() returns ImageMagick installation path settings
% stored in the Windows Registry. Path settings are specific to the
% installed ImageMagick version so that multiple Image Magick installations
% may coexist.
%
% Values are stored in the registry under a base path path similar to
% "HKEY_LOCAL_MACHINE/SOFTWARE\ImageMagick\6.7.4\Q:16" or
% "HKEY_CURRENT_USER/SOFTWARE\ImageMagick\6.7.4\Q:16". The provided subkey
% is appended to this base path to form the full key.
%
% The format of the NTRegistryKeyLookup method is:
%
% unsigned char *NTRegistryKeyLookup(const char *subkey)
%
% A description of each parameter follows:
%
% o subkey: Specifies a string that identifies the registry object.
% Currently supported sub-keys include: "BinPath", "ConfigurePath",
% "LibPath", "CoderModulesPath", "FilterModulesPath", "SharePath".
%
*/
MagickPrivate unsigned char *NTRegistryKeyLookup(const char *subkey)
{
char
package_key[MaxTextExtent];
DWORD
size,
type;
HKEY
registry_key;
LONG
status;
unsigned char
*value;
/*
Look-up base key.
*/
(void) FormatLocaleString(package_key,MaxTextExtent,"SOFTWARE\\%s\\%s\\Q:%d",
MagickPackageName,MagickLibVersionText,MAGICKCORE_QUANTUM_DEPTH);
(void) LogMagickEvent(ConfigureEvent,GetMagickModule(),"%s",package_key);
registry_key=(HKEY) INVALID_HANDLE_VALUE;
status=RegOpenKeyExA(HKEY_LOCAL_MACHINE,package_key,0,KEY_READ,&registry_key);
if (status != ERROR_SUCCESS)
status=RegOpenKeyExA(HKEY_CURRENT_USER,package_key,0,KEY_READ,
&registry_key);
if (status != ERROR_SUCCESS)
return((unsigned char *) NULL);
/*
Look-up sub key.
*/
size=32;
value=(unsigned char *) AcquireQuantumMemory(size,sizeof(*value));
if (value == (unsigned char *) NULL)
{
RegCloseKey(registry_key);
return((unsigned char *) NULL);
}
(void) LogMagickEvent(ConfigureEvent,GetMagickModule(),"%s",subkey);
status=RegQueryValueExA(registry_key,subkey,0,&type,value,&size);
if ((status == ERROR_MORE_DATA) && (type == REG_SZ))
{
value=(unsigned char *) ResizeQuantumMemory(value,size,sizeof(*value));
if (value == (BYTE *) NULL)
{
RegCloseKey(registry_key);
return((unsigned char *) NULL);
}
status=RegQueryValueExA(registry_key,subkey,0,&type,value,&size);
}
RegCloseKey(registry_key);
if ((type != REG_SZ) || (status != ERROR_SUCCESS))
value=(unsigned char *) RelinquishMagickMemory(value);
return((unsigned char *) value);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T R e p o r t E v e n t %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTReportEvent() reports an event.
%
% The format of the NTReportEvent method is:
%
% MagickBooleanType NTReportEvent(const char *event,
% const MagickBooleanType error)
%
% A description of each parameter follows:
%
% o event: the event.
%
% o error: MagickTrue the event is an error.
%
*/
MagickPrivate MagickBooleanType NTReportEvent(const char *event,
const MagickBooleanType error)
{
const char
*events[1];
HANDLE
handle;
WORD
type;
handle=RegisterEventSource(NULL,MAGICKCORE_PACKAGE_NAME);
if (handle == NULL)
return(MagickFalse);
events[0]=event;
type=error ? EVENTLOG_ERROR_TYPE : EVENTLOG_WARNING_TYPE;
ReportEvent(handle,type,0,0,NULL,1,0,events,NULL);
DeregisterEventSource(handle);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T R e s o u r c e T o B l o b %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTResourceToBlob() returns a blob containing the contents of the resource
% in the current executable specified by the id parameter. This currently
% used to retrieve MGK files tha have been embedded into the various command
% line utilities.
%
% The format of the NTResourceToBlob method is:
%
% unsigned char *NTResourceToBlob(const char *id)
%
% A description of each parameter follows:
%
% o id: Specifies a string that identifies the resource.
%
*/
MagickPrivate unsigned char *NTResourceToBlob(const char *id)
{
#ifndef MAGICKCORE_LIBRARY_NAME
char
path[MaxTextExtent];
#endif
DWORD
length;
HGLOBAL
global;
HMODULE
handle;
HRSRC
resource;
unsigned char
*blob,
*value;
assert(id != (const char *) NULL);
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",id);
#ifdef MAGICKCORE_LIBRARY_NAME
handle=GetModuleHandle(MAGICKCORE_LIBRARY_NAME);
#else
(void) FormatLocaleString(path,MaxTextExtent,"%s%s%s",GetClientPath(),
DirectorySeparator,GetClientName());
if (IsPathAccessible(path) != MagickFalse)
handle=GetModuleHandle(path);
else
handle=GetModuleHandle(0);
#endif
if (!handle)
return((unsigned char *) NULL);
resource=FindResource(handle,id,"IMAGEMAGICK");
if (!resource)
return((unsigned char *) NULL);
global=LoadResource(handle,resource);
if (!global)
return((unsigned char *) NULL);
length=SizeofResource(handle,resource);
value=(unsigned char *) LockResource(global);
if (!value)
{
FreeResource(global);
return((unsigned char *) NULL);
}
blob=(unsigned char *) AcquireQuantumMemory(length+MaxTextExtent,
sizeof(*blob));
if (blob != (unsigned char *) NULL)
{
(void) memcpy(blob,value,length);
blob[length]='\0';
}
UnlockResource(global);
FreeResource(global);
return(blob);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T S e t S e a r c h P a t h %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTSetSearchPath() sets the current locations that the subsystem should
% look at to find dynamically loadable modules.
%
% The format of the NTSetSearchPath method is:
%
% int NTSetSearchPath(const char *path)
%
% A description of each parameter follows:
%
% o path: Specifies a pointer to string representing the search path
% for DLL's that can be dynamically loaded.
%
*/
MagickPrivate int NTSetSearchPath(const char *path)
{
#if defined(MAGICKCORE_LTDL_DELEGATE)
lt_dlsetsearchpath(path);
#else
if (lt_slsearchpath != (char *) NULL)
lt_slsearchpath=DestroyString(lt_slsearchpath);
if (path != (char *) NULL)
lt_slsearchpath=AcquireString(path);
#endif
return(0);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T S y s t e m C o m m a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTSystemCommand() executes the specified command and waits until it
% terminates. The returned value is the exit status of the command.
%
% The format of the NTSystemCommand method is:
%
% int NTSystemCommand(MagickFalse,const char *command)
%
% A description of each parameter follows:
%
% o command: This string is the command to execute.
%
% o output: an optional buffer to store the output from stderr/stdout.
%
*/
MagickPrivate int NTSystemCommand(const char *command,char *output)
{
#define CleanupOutputHandles \
if (read_output != (HANDLE) NULL) \
{ \
CloseHandle(read_output); \
read_output=(HANDLE) NULL; \
CloseHandle(write_output); \
write_output=(HANDLE) NULL; \
}
#define CopyLastError \
if (output != (char *) NULL) \
{ \
error=NTGetLastError(); \
if (error != (char *) NULL) \
{ \
CopyMagickString(output,error,MaxTextExtent); \
error=DestroyString(error); \
} \
}
char
*error,
local_command[MaxTextExtent];
DWORD
child_status;
int
status;
MagickBooleanType
asynchronous;
HANDLE
read_output,
write_output;
PROCESS_INFORMATION
process_info;
SECURITY_ATTRIBUTES
sa;
size_t
output_offset;
STARTUPINFO
startup_info;
if (command == (char *) NULL)
return(-1);
read_output=(HANDLE) NULL;
write_output=(HANDLE) NULL;
GetStartupInfo(&startup_info);
startup_info.dwFlags=STARTF_USESHOWWINDOW;
startup_info.wShowWindow=SW_SHOWMINNOACTIVE;
(void) CopyMagickString(local_command,command,MaxTextExtent);
asynchronous=command[strlen(command)-1] == '&' ? MagickTrue : MagickFalse;
if (asynchronous != MagickFalse)
{
local_command[strlen(command)-1]='\0';
startup_info.wShowWindow=SW_SHOWDEFAULT;
}
else
{
if (command[strlen(command)-1] == '|')
local_command[strlen(command)-1]='\0';
else
startup_info.wShowWindow=SW_HIDE;
read_output=(HANDLE) NULL;
if (output != (char *) NULL)
{
sa.nLength=sizeof(SECURITY_ATTRIBUTES);
sa.bInheritHandle=TRUE;
sa.lpSecurityDescriptor=NULL;
if (CreatePipe(&read_output,&write_output,NULL,0))
{
if (SetHandleInformation(write_output,HANDLE_FLAG_INHERIT,
HANDLE_FLAG_INHERIT))
{
startup_info.dwFlags|=STARTF_USESTDHANDLES;
startup_info.hStdOutput=write_output;
startup_info.hStdError=write_output;
}
else
CleanupOutputHandles;
}
else
read_output=(HANDLE) NULL;
}
}
status=CreateProcess((LPCTSTR) NULL,local_command,(LPSECURITY_ATTRIBUTES)
NULL,(LPSECURITY_ATTRIBUTES) NULL,(BOOL) TRUE,(DWORD)
NORMAL_PRIORITY_CLASS,(LPVOID) NULL,(LPCSTR) NULL,&startup_info,
&process_info);
if (status == 0)
{
CopyLastError;
CleanupOutputHandles;
return(-1);
}
if (output != (char *) NULL)
*output='\0';
if (asynchronous != MagickFalse)
return(status == 0);
output_offset=0;
status=STATUS_TIMEOUT;
while (status == STATUS_TIMEOUT)
{
DWORD
size;
status=WaitForSingleObject(process_info.hProcess,1000);
size=0;
if (read_output != (HANDLE) NULL)
if (!PeekNamedPipe(read_output,NULL,0,NULL,&size,NULL))
break;
while (size > 0)
{
char
buffer[MagickPathExtent];
DWORD
bytes_read;
if (ReadFile(read_output,buffer,MagickPathExtent-1,&bytes_read,NULL))
{
size_t
count;
count=MagickMin(MagickPathExtent-output_offset,
(size_t) bytes_read+1);
if (count > 0)
{
CopyMagickString(output+output_offset,buffer,count);
output_offset+=count-1;
}
}
if (!PeekNamedPipe(read_output,NULL,0,NULL,&size,NULL))
break;
}
}
if (status != WAIT_OBJECT_0)
{
CopyLastError;
CleanupOutputHandles;
return(status);
}
status=GetExitCodeProcess(process_info.hProcess,&child_status);
if (status == 0)
{
CopyLastError;
CleanupOutputHandles;
return(-1);
}
CloseHandle(process_info.hProcess);
CloseHandle(process_info.hThread);
CleanupOutputHandles;
return((int) child_status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T S y s t e m C o n i f i g u r a t i o n %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTSystemConfiguration() provides a way for the application to determine
% values for system limits or options at runtime.
%
% The format of the exit method is:
%
% ssize_t NTSystemConfiguration(int name)
%
% A description of each parameter follows:
%
% o name: _SC_PAGE_SIZE or _SC_PHYS_PAGES.
%
*/
MagickPrivate ssize_t NTSystemConfiguration(int name)
{
switch (name)
{
case _SC_PAGE_SIZE:
{
SYSTEM_INFO
system_info;
GetSystemInfo(&system_info);
return(system_info.dwPageSize);
}
case _SC_PHYS_PAGES:
{
MEMORYSTATUSEX
status;
SYSTEM_INFO
system_info;
status.dwLength=sizeof(status);
if (GlobalMemoryStatusEx(&status) == 0)
return(0L);
GetSystemInfo(&system_info);
return((ssize_t) status.ullTotalPhys/system_info.dwPageSize);
}
case _SC_OPEN_MAX:
return(2048);
default:
break;
}
return(-1);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T T r u n c a t e F i l e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTTruncateFile() truncates a file to a specified length.
%
% The format of the NTTruncateFile method is:
%
% int NTTruncateFile(int file,off_t length)
%
% A description of each parameter follows:
%
% o file: the file.
%
% o length: the file length.
%
*/
MagickPrivate int NTTruncateFile(int file,off_t length)
{
DWORD
file_pointer;
HANDLE
file_handle;
long
high,
low;
file_handle=(HANDLE) _get_osfhandle(file);
if (file_handle == INVALID_HANDLE_VALUE)
return(-1);
low=(long) (length & 0xffffffffUL);
high=(long) ((((MagickOffsetType) length) >> 32) & 0xffffffffUL);
file_pointer=SetFilePointer(file_handle,low,&high,FILE_BEGIN);
if ((file_pointer == 0xFFFFFFFF) && (GetLastError() != NO_ERROR))
return(-1);
if (SetEndOfFile(file_handle) == 0)
return(-1);
return(0);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ N T U n m a p M e m o r y %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTUnmapMemory() emulates the Unix munmap method.
%
% The format of the NTUnmapMemory method is:
%
% int NTUnmapMemory(void *map,size_t length)
%
% A description of each parameter follows:
%
% o map: the address of the binary large object.
%
% o length: the length of the binary large object.
%
*/
MagickPrivate int NTUnmapMemory(void *map,size_t length)
{
(void) length;
if (UnmapViewOfFile(map) == 0)
return(-1);
return(0);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T U s e r T i m e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTUserTime() returns the total time the process has been scheduled (e.g.
% seconds) since the last call to StartTimer().
%
% The format of the UserTime method is:
%
% double NTUserTime(void)
%
*/
MagickPrivate double NTUserTime(void)
{
DWORD
status;
FILETIME
create_time,
exit_time;
OSVERSIONINFO
OsVersionInfo;
union
{
FILETIME
filetime;
__int64
filetime64;
} kernel_time;
union
{
FILETIME
filetime;
__int64
filetime64;
} user_time;
OsVersionInfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
GetVersionEx(&OsVersionInfo);
if (OsVersionInfo.dwPlatformId != VER_PLATFORM_WIN32_NT)
return(NTElapsedTime());
status=GetProcessTimes(GetCurrentProcess(),&create_time,&exit_time,
&kernel_time.filetime,&user_time.filetime);
if (status != TRUE)
return(0.0);
return((double) 1.0e-7*(kernel_time.filetime64+user_time.filetime64));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T W a r n i n g H a n d l e r %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTWarningHandler() displays a warning reason.
%
% The format of the NTWarningHandler method is:
%
% void NTWarningHandler(const ExceptionType severity,const char *reason,
% const char *description)
%
% A description of each parameter follows:
%
% o severity: Specifies the numeric warning category.
%
% o reason: Specifies the reason to display before terminating the
% program.
%
% o description: Specifies any description to the reason.
%
*/
MagickPrivate void NTWarningHandler(const ExceptionType severity,
const char *reason,const char *description)
{
char
buffer[2*MaxTextExtent];
(void) severity;
if (reason == (char *) NULL)
return;
if (description == (char *) NULL)
(void) FormatLocaleString(buffer,MaxTextExtent,"%s: %s.\n",GetClientName(),
reason);
else
(void) FormatLocaleString(buffer,MaxTextExtent,"%s: %s (%s).\n",
GetClientName(),reason,description);
(void) MessageBox(NULL,buffer,"ImageMagick Warning",MB_OK | MB_TASKMODAL |
MB_SETFOREGROUND | MB_ICONINFORMATION);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T W i n d o w s G e n e s i s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTWindowsGenesis() initializes the MagickCore Windows environment.
%
% The format of the NTWindowsGenesis method is:
%
% void NTWindowsGenesis(void)
%
*/
static LONG WINAPI NTUncaughtException(EXCEPTION_POINTERS *info)
{
magick_unreferenced(info);
AsynchronousResourceComponentTerminus();
return(EXCEPTION_CONTINUE_SEARCH);
}
MagickPrivate void NTWindowsGenesis(void)
{
char
*mode;
SetUnhandledExceptionFilter(NTUncaughtException);
mode=GetEnvironmentValue("MAGICK_ERRORMODE");
if (mode != (char *) NULL)
{
(void) SetErrorMode(StringToInteger(mode));
mode=DestroyString(mode);
}
#if defined(_DEBUG) && !defined(__BORLANDC__) && !defined(__MINGW32__)
if (IsEventLogging() != MagickFalse)
{
int
debug;
debug=_CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
//debug |= _CRTDBG_CHECK_ALWAYS_DF;
debug |= _CRTDBG_DELAY_FREE_MEM_DF;
debug |= _CRTDBG_LEAK_CHECK_DF;
(void) _CrtSetDbgFlag(debug);
//_ASSERTE(_CrtCheckMemory());
//_CrtSetBreakAlloc(42);
}
#endif
#if defined(MAGICKCORE_INSTALLED_SUPPORT)
{
unsigned char
*path;
path=NTRegistryKeyLookup("LibPath");
if (path != (unsigned char *) NULL)
{
size_t
length;
wchar_t
lib_path[MagickPathExtent];
length=MultiByteToWideChar(CP_UTF8,0,(char *) path,-1,lib_path,
MagickPathExtent);
if (length != 0)
SetDllDirectoryW(lib_path);
path=(unsigned char *) RelinquishMagickMemory(path);
}
}
#endif
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% N T W i n d o w s T e r m i n u s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% NTWindowsTerminus() terminates the MagickCore Windows environment.
%
% The format of the NTWindowsTerminus method is:
%
% void NTWindowsTerminus(void)
%
*/
MagickPrivate void NTWindowsTerminus(void)
{
NTGhostscriptUnLoadDLL();
if (winsock_semaphore == (SemaphoreInfo *) NULL)
ActivateSemaphoreInfo(&winsock_semaphore);
LockSemaphoreInfo(winsock_semaphore);
if (wsaData != (WSADATA *) NULL)
{
WSACleanup();
wsaData=(WSADATA *) RelinquishMagickMemory((void *) wsaData);
}
UnlockSemaphoreInfo(winsock_semaphore);
DestroySemaphoreInfo(&winsock_semaphore);
}
#endif