common/dynload.h

   1 /* dlfcn.h - W32 functions for run-time dynamic loading
   2  *      Copyright (C) 2003 Free Software Foundation, Inc.
   3  *
   4  * This file is part of GnuPG.
   5  *
   6  * GnuPG is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GnuPG 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
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19  * USA.
  20  */
  21
  22 #ifndef GNUPG_DYNLOAD_H
  23 #define GNUPG_DYNLOAD_H
  24 #ifndef __MINGW32__
  25 #include <dlfcn.h>
  26 #else
  27 #include <windows.h>
  28
  29 #define RTLD_LAZY 0
  30
  31 static inline void *
  32 dlopen (const char * name, int flag)
  33 {
  34   void * hd = LoadLibrary (name);
  35   return hd;
  36 }
  37
  38 static inline void *
  39 dlsym (void *hd, const char *sym)
  40 {
  41   if (hd && sym)
  42     {
  43       void * fnc = GetProcAddress (hd, sym);
  44       if (!fnc)
  45         return NULL;
  46       return fnc;
  47     }
  48   return NULL;
  49 }
  50
  51
  52 static inline const char *
  53 dlerror (void)
  54 {
  55   static char buf[32];
  56   sprintf (buf, "ec=%lu", GetLastError ());
  57   return buf;
  58 }
  59
  60
  61 static inline int
  62 dlclose (void * hd)
  63 {
  64   if (hd)
  65     {
  66       CloseHandle (hd);
  67       return 0;
  68     }
  69   return -1;
  70 }
  71 #endif /*__MINGW32__*/
  72 #endif /*GNUPG_DYNLOAD_H*/