95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
#ifndef IVL_ivl_dlfcn_H
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#define IVL_ivl_dlfcn_H
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/*
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* Copyright (c) 2001-2014 Stephen Williams (steve@icarus.com)
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#if defined(__MINGW32__)
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# include <windows.h>
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# include <stdio.h>
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typedef void * ivl_dll_t;
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#elif defined(HAVE_DLFCN_H)
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# include <dlfcn.h>
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typedef void* ivl_dll_t;
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#elif defined(HAVE_DL_H)
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# include <dl.h>
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typedef shl_t ivl_dll_t;
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#endif
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#if defined(__MINGW32__)
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static __inline__ ivl_dll_t ivl_dlopen(const char *name)
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{ return (void *)LoadLibrary(name); }
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static __inline__ void *ivl_dlsym(ivl_dll_t dll, const char *nm)
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{ return (void *)GetProcAddress((HINSTANCE)dll,nm);}
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static __inline__ void ivl_dlclose(ivl_dll_t dll)
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{ (void)FreeLibrary((HINSTANCE)dll);}
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static __inline__ const char *dlerror(void)
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{
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static char msg[256];
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unsigned long err = GetLastError();
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FormatMessage(
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FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL,
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err,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
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(LPTSTR) &msg,
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sizeof(msg) - 1,
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NULL
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);
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return msg;
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}
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#elif defined(HAVE_DLFCN_H)
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static __inline__ ivl_dll_t ivl_dlopen(const char*name)
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{ return dlopen(name,RTLD_LAZY); }
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static __inline__ void* ivl_dlsym(ivl_dll_t dll, const char*nm)
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{
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void*sym = dlsym(dll, nm);
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/* Not found? try without the leading _ */
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if (sym == 0 && nm[0] == '_')
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sym = dlsym(dll, nm+1);
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return sym;
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}
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static __inline__ void ivl_dlclose(ivl_dll_t dll)
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{ dlclose(dll); }
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#elif defined(HAVE_DL_H)
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static __inline__ ivl_dll_t ivl_dlopen(const char*name)
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{ return shl_load(name, BIND_IMMEDIATE, 0); }
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static __inline__ void* ivl_dlsym(ivl_dll_t dll, const char*nm)
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{
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void*sym;
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int rc = shl_findsym(&dll, nm, TYPE_PROCEDURE, &sym);
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return (rc == 0) ? sym : 0;
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}
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static __inline__ void ivl_dlclose(ivl_dll_t dll)
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{ shl_unload(dll); }
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static __inline__ const char*dlerror(void)
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{ return strerror( errno ); }
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#endif
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#endif /* IVL_ivl_dlfcn_H */
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