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/*
* $Id: plugin.c,v 1.2 2004/06/17 23:48:26 tom Exp $
*/
#include "estruct.h"
#include "edef.h"
#include "plugin.h"
#include <dlfcn.h>
#if defined(RTLD_NOW)
#define my_RTLD RTLD_NOW
#elif defined(RTLD_LAZY)
#define my_RTLD RTLD_LAZY
#else
#define my_RTLD 0
#endif
int
loadplugin(int f GCC_UNUSED, int n GCC_UNUSED)
{
int ret = FALSE;
int status;
static char name[NSTRING - sizeof(PLUGIN_INIT_NAME)] = "";
char leafname[NSTRING];
char symname[NSTRING];
const char *cp = libdir_path;
void *found = 0;
plugin_init init;
/* obtain name from user/rcfile */
status = mlreply("Plugin name: ", name, (sizeof name) - 1);
if (status == ABORT)
return FALSE;
sprintf(leafname, PLUGIN_SO_FMT, name);
sprintf(symname, PLUGIN_INIT_NAME, name);
TRACE(("leafname %s\n", leafname));
TRACE(("symname %s\n", symname));
if ((cp = cfg_locate(leafname, LOCATE_EXEC)) != 0) {
TRACE(("try dlopen(%s)\n", cp));
found = dlopen(cp, my_RTLD);
}
if (found == 0)
mlwarn("Error: plugin '%s' not found", name);
else if ((init = (plugin_init) dlsym(found, symname)) == 0)
mlwarn("Error: plugin '%s' initialization function not found", name);
else if (init() == 0)
mlwarn("Error: failed to initialize plugin '%s'", name);
else
ret = TRUE;
/* TODO: on success, remember in loaded plugin list */
return ret;
}
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