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/* dynload.h - Wrapper functions for run-time dynamic loading
* Copyright (C) 2003, 2010 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute and/or modify this
* part of GnuPG under the terms of either
*
* - the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* or
*
* - the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* or both in parallel, as here.
*
* GnuPG is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copies of the GNU General Public License
* and the GNU Lesser General Public License along with this program;
* if not, see <https://www.gnu.org/licenses/>.
*/
#ifndef GNUPG_COMMON_DYNLOAD_H
#define GNUPG_COMMON_DYNLOAD_H
#ifndef __MINGW32__
# include <dlfcn.h>
#else
# include <errhandlingapi.h>
# include <handleapi.h>
# include <libloaderapi.h>
# include "utf8conv.h"
# include "mischelp.h"
# define RTLD_LAZY 0
static inline void *
dlopen (const char *name, int flag)
{
void *hd;
#ifdef HAVE_W32CE_SYSTEM
wchar_t *wname = utf8_to_wchar (name);
hd = wname? LoadLibrary (wname) : NULL;
xfree (wname);
#else
hd = LoadLibrary (name);
#endif
(void)flag;
return hd;
}
static inline void *
dlsym (void *hd, const char *sym)
{
if (hd && sym)
{
#ifdef HAVE_W32CE_SYSTEM
wchar_t *wsym = utf8_to_wchar (sym);
void *fnc = wsym? GetProcAddress (hd, wsym) : NULL;
xfree (wsym);
#else
void *fnc = GetProcAddress (hd, sym);
#endif
if (!fnc)
return NULL;
return fnc;
}
return NULL;
}
static inline const char *
dlerror (void)
{
static char buf[32];
snprintf (buf, sizeof buf, "ec=%lu", GetLastError ());
return buf;
}
static inline int
dlclose (void * hd)
{
if (hd)
{
CloseHandle (hd);
return 0;
}
return -1;
}
# endif /*__MINGW32__*/
#endif /*GNUPG_COMMON_DYNLOAD_H*/
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