dlls/crtdll/crtdll_main.c

   1 /*
   2  * Old C RunTime DLL - All functionality is provided by msvcrt.
   3  *
   4  * Copyright 2000 Jon Griffiths
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #ifdef HAVE_SYS_STAT_H
  25 # include <sys/stat.h>
  26 #endif
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(crtdll);
  34
  35 /* from msvcrt */
  36 extern void CDECL __getmainargs( int *argc, char ***argv, char ***envp,
  37                                  int expand_wildcards, int *new_mode );
  38
  39 /* The following data items are not exported from msvcrt */
  40 unsigned int CRTDLL__basemajor_dll;
  41 unsigned int CRTDLL__baseminor_dll;
  42 unsigned int CRTDLL__baseversion_dll;
  43 unsigned int CRTDLL__cpumode_dll;
  44 unsigned int CRTDLL__osmajor_dll;
  45 unsigned int CRTDLL__osminor_dll;
  46 unsigned int CRTDLL__osmode_dll;
  47 unsigned int CRTDLL__osversion_dll;
  48
  49 /* dev_t is a short in crtdll but an unsigned int in msvcrt */
  50 typedef short crtdll_dev_t;
  51
  52 struct crtdll_stat
  53 {
  54   crtdll_dev_t   st_dev;
  55   _ino_t         st_ino;
  56   unsigned short st_mode;
  57   short          st_nlink;
  58   short          st_uid;
  59   short          st_gid;
  60   crtdll_dev_t   st_rdev;
  61   _off_t         st_size;
  62   time_t         st_atime;
  63   time_t         st_mtime;
  64   time_t         st_ctime;
  65 };
  66
  67 /* convert struct _stat from crtdll format to msvcrt format */
  68 static void convert_struct_stat( struct crtdll_stat *dst, const struct _stat *src )
  69 {
  70     dst->st_dev   = src->st_dev;
  71     dst->st_ino   = src->st_ino;
  72     dst->st_mode  = src->st_mode;
  73     dst->st_nlink = src->st_nlink;
  74     dst->st_uid   = src->st_uid;
  75     dst->st_gid   = src->st_gid;
  76     dst->st_rdev  = src->st_rdev;
  77     dst->st_size  = src->st_size;
  78     dst->st_atime = src->st_atime;
  79     dst->st_mtime = src->st_mtime;
  80     dst->st_ctime = src->st_ctime;
  81 }
  82
  83
  84 /*********************************************************************
  85  *                  DllMain  (CRTDLL.init)
  86  */
  87 BOOL WINAPI DllMain(HINSTANCE hinstDLL,DWORD fdwReason,LPVOID lpvReserved)
  88 {
  89   TRACE("(%p,%d,%p)\n",hinstDLL,fdwReason,lpvReserved);
  90
  91   if (fdwReason == DLL_PROCESS_ATTACH)
  92   {
  93     DWORD version = GetVersion();
  94
  95     DisableThreadLibraryCalls(hinstDLL);
  96
  97     CRTDLL__basemajor_dll   = (version >> 24) & 0xFF;
  98     CRTDLL__baseminor_dll   = (version >> 16) & 0xFF;
  99     CRTDLL__baseversion_dll = (version >> 16);
 100     CRTDLL__cpumode_dll     = 1; /* FIXME */
 101     CRTDLL__osmajor_dll     = (version>>8) & 0xFF;
 102     CRTDLL__osminor_dll     = (version & 0xFF);
 103     CRTDLL__osmode_dll      = 1; /* FIXME */
 104     CRTDLL__osversion_dll   = (version & 0xFFFF);
 105   }
 106   return TRUE;
 107 }
 108
 109
 110 /*********************************************************************
 111  *                  __GetMainArgs  (CRTDLL.@)
 112  */
 113 void CDECL __GetMainArgs( int *argc, char ***argv, char ***envp, int expand_wildcards )
 114 {
 115     int new_mode = 0;
 116     __getmainargs( argc, argv, envp, expand_wildcards, &new_mode );
 117 }
 118
 119
 120 /*********************************************************************
 121  *              _fstat (CRTDLL.@)
 122  */
 123 int CDECL CRTDLL__fstat(int fd, struct crtdll_stat* buf)
 124 {
 125     extern int _fstat(int,struct _stat*);
 126     struct _stat st;
 127     int ret;
 128
 129     if (!(ret = _fstat( fd, &st ))) convert_struct_stat( buf, &st );
 130     return ret;
 131 }
 132
 133
 134 /*********************************************************************
 135  *              _stat (CRTDLL.@)
 136  */
 137 int CDECL CRTDLL__stat(const char* path, struct crtdll_stat * buf)
 138 {
 139     extern int _stat(const char*,struct _stat*);
 140     struct _stat st;
 141     int ret;
 142
 143     if (!(ret = _stat( path, &st ))) convert_struct_stat( buf, &st );
 144     return ret;
 145 }
 146
 147
 148 /*********************************************************************
 149  *              _strdec (CRTDLL.@)
 150  */
 151 char * CDECL _strdec(const char *str1, const char *str2)
 152 {
 153     return (char *)(str2 - 1);
 154 }
 155
 156
 157 /*********************************************************************
 158  *              _strinc (CRTDLL.@)
 159  */
 160 char * CDECL _strinc(const char *str)
 161 {
 162     return (char *)(str + 1);
 163 }
 164
 165
 166 /*********************************************************************
 167  *              _strncnt (CRTDLL.@)
 168  */
 169 size_t CDECL _strncnt(const char *str, size_t maxlen)
 170 {
 171     size_t len = strlen(str);
 172     return (len > maxlen) ? maxlen : len;
 173 }
 174
 175
 176 /*********************************************************************
 177  *              _strnextc (CRTDLL.@)
 178  */
 179 unsigned int CDECL _strnextc(const char *str)
 180 {
 181     return (unsigned int)str[0];
 182 }
 183
 184
 185 /*********************************************************************
 186  *              _strninc (CRTDLL.@)
 187  */
 188 char * CDECL _strninc(const char *str, size_t len)
 189 {
 190     return (char *)(str + len);
 191 }
 192
 193
 194 /*********************************************************************
 195  *              _strspnp (CRTDLL.@)
 196  */
 197 char * CDECL _strspnp( const char *str1, const char *str2)
 198 {
 199     str1 += strspn( str1, str2 );
 200     return *str1 ? (char*)str1 : NULL;
 201 }