msvcrt: Added fopen_s implementation.

dlls/msvcr80/msvcr80.spec

@@ -1259,7 +1259,7 @@
 @ cdecl floor(double) msvcrt.floor
 @ cdecl fmod(double double) msvcrt.fmod
 @ cdecl fopen(str str) msvcrt.fopen
-@ stub fopen_s
+@ cdecl fopen_s(ptr str str) msvcrt.fopen_s
 @ varargs fprintf(ptr str) msvcrt.fprintf
 @ stub fprintf_s
 @ cdecl fputc(long ptr) msvcrt.fputc

dlls/msvcr90/msvcr90.spec

@@ -1243,7 +1243,7 @@
 @ cdecl floor(double) msvcrt.floor
 @ cdecl fmod(double double) msvcrt.fmod
 @ cdecl fopen(str str) msvcrt.fopen
-@ stub fopen_s
+@ cdecl fopen_s(ptr str str) msvcrt.fopen_s
 @ varargs fprintf(ptr str) msvcrt.fprintf
 @ stub fprintf_s
 @ cdecl fputc(long ptr) msvcrt.fputc

dlls/msvcrt/file.c

@@ -218,6 +218,7 @@ static int msvcrt_alloc_fd_from(HANDLE hand, int flag, int fd)
   if (fd >= MSVCRT_MAX_FILES)
   {
     WARN(":files exhausted!\n");
+    *MSVCRT__errno() = MSVCRT_ENFILE;
     return -1;
   }
   MSVCRT_fdesc[fd].handle = hand;
@@ -1033,6 +1034,8 @@ static int msvcrt_get_flags(const MSVCRT_wchar_t* mode, int *open_flags, int* st
     *stream_flags = plus ? MSVCRT__IORW : MSVCRT__IOWRT;
     break;
   default:
+    MSVCRT__invalid_parameter(NULL, NULL, NULL, 0, 0);
+    *MSVCRT__errno() = MSVCRT_EINVAL;
     return -1;
   }
 
@@ -2649,10 +2652,16 @@ MSVCRT_FILE * CDECL MSVCRT__fsopen(const char *path, const char *mode, int share
     MSVCRT_FILE *ret;
     MSVCRT_wchar_t *pathW = NULL, *modeW = NULL;
 
-    if (path && !(pathW = msvcrt_wstrdupa(path))) return NULL;
+    if (path && !(pathW = msvcrt_wstrdupa(path))) {
+        MSVCRT__invalid_parameter(NULL, NULL, NULL, 0, 0);
+        *MSVCRT__errno() = MSVCRT_EINVAL;
+        return NULL;
+    }
     if (mode && !(modeW = msvcrt_wstrdupa(mode)))
     {
         MSVCRT_free(pathW);
+        MSVCRT__invalid_parameter(NULL, NULL, NULL, 0, 0);
+        *MSVCRT__errno() = MSVCRT_EINVAL;
         return NULL;
     }
 
@@ -2671,6 +2680,25 @@ MSVCRT_FILE * CDECL MSVCRT_fopen(const char *path, const char *mode)
     return MSVCRT__fsopen( path, mode, MSVCRT__SH_DENYNO );
 }
 
+/*********************************************************************
+ *              fopen_s (MSVCRT.@)
+ */
+int CDECL MSVCRT_fopen_s(MSVCRT_FILE** pFile,
+        const char *filename, const char *mode)
+{
+    if(!pFile) {
+        MSVCRT__invalid_parameter(NULL, NULL, NULL, 0, 0);
+        *MSVCRT__errno() = MSVCRT_EINVAL;
+        return MSVCRT_EINVAL;
+    }
+
+    *pFile = MSVCRT_fopen(filename, mode);
+
+    if(!*pFile)
+        return *MSVCRT__errno();
+    return 0;
+}
+
 /*********************************************************************
  *		_wfopen (MSVCRT.@)
  */

dlls/msvcrt/msvcrt.spec

@@ -1190,7 +1190,7 @@
 @ cdecl floor(double) MSVCRT_floor
 @ cdecl fmod(double double) MSVCRT_fmod
 @ cdecl fopen(str str) MSVCRT_fopen
-# stub fopen_s
+@ cdecl fopen_s(ptr str str) MSVCRT_fopen_s
 @ varargs fprintf(ptr str) MSVCRT_fprintf
 # stub fprintf_s
 @ cdecl fputc(long ptr) MSVCRT_fputc