108 lines
2.2 KiB
C
108 lines
2.2 KiB
C
/*
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plugin.c
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Dynamic shared object loader
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Copyright (C) 1999, 2000 contributors of the QuakeForge project
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Please see the file "AUTHORS" for a list of contributors
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Author: Zephaniah E. Hull <mwarp@whitestar.soark.net>
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Date: 11 Feb 2000
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This file is part of the QuakeForge Core system.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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.
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See the GNU General Public License for more details.
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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:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <dlfcn.h>
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#include <stdlib.h>
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#include <sys/param.h>
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#include <config.h>
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#include <net.h>
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#include <plugin.h>
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#include <cvar.h>
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cvar_t drv_path = {"drv_path", ".:" LIBDIR "/quakeforge"};
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void *_plugin_load(const char *filename)
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{
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void *h;
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char path_buf[MAXPATHLEN*2+1+1];
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char *path,*end;
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int len;
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for (path = drv_path.string; *path; path=end) {
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end = strchr(path,':');
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if (!end)
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end = strchr(path,0);
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len=end-path;
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if (len>MAXPATHLEN)
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len=MAXPATHLEN;
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sprintf(path_buf,"%.*s/%.*s",len,path,MAXPATHLEN,filename);
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if ((h = dlopen(path_buf, RTLD_LAZY))) {
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return h;
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}
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if (*end)
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end++;
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}
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return 0;
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}
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int plugin_load(char *filename)
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{
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void *(*gpi) (void);
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void *h;
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if ((h=_plugin_load(filename))) {
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if ((gpi = dlsym(h, "get_input_plugin_info"))) {
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/*
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input_pi *p;
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p = (input_pi *) gpi();
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p->handle = h;
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p->filename = filename;
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IN = p;
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} else if (gpi = dlsym(h, "get_sound_plugin_info")) {
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sound_pi *p;
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p = (sound_pi *) gpi();
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p->handle = h;
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p->filename = filename;
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*/
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} else {
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dlclose(h);
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return 0;
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}
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} else {
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fprintf(stderr, "%s\n", dlerror());
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return 0;
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}
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return 1;
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}
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void plugin_unload(void *handle)
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{
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dlclose(handle);
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}
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