/**
* plugin_find - Find a plugin by name
* @name: With or without path, or .so extension
*
* This function uses an opporunistic search for a suitable plugin and
* returns the first match. Albeit with at least some measure of
* heuristics.
*
* First it checks for an exact match. If no match is found and @name
* starts with a slash the search ends. Otherwise a new search with the
* plugin path prepended to @name is made. Also, if @name does not end
* with .so it too is added to @name before searching.
*
* Returns:
* On success the pointer to the matching &ddns_system_t is returned,
* otherwise %NULL is returned.
*/
ddns_system_t *plugin_find(const char *name)
{
char *tmp, *ptr;
ddns_system_t *p;
if (!name) {
errno = EINVAL;
return NULL;
}
/* Check for multiple instances of plugin */
tmp = strdup(name);
if (!tmp)
return NULL;
ptr = strchr(tmp, ':');
if (ptr)
*ptr = 0;
name = tmp;
p = search_plugin(name);
if (p) {
free(tmp);
return p;
}
if (plugpath && name[0] != '/') {
int noext;
char *path;
size_t len = strlen(plugpath) + strlen(name) + 5;
path = malloc(len);
if (!path) {
free(tmp);
return NULL;
}
noext = strcmp(name + strlen(name) - 3, ".so");
snprintf(path, len, "%s%s%s%s", plugpath,
plugpath[strlen(plugpath) - 1] == '/' ? "" : "/",
name, noext ? ".so" : "");
p = search_plugin(path);
free(path);
if (p) {
free(tmp);
return p;
}
}
free(tmp);
errno = ENOENT;
return NULL;
}
void daemon_interface(void)
{
DEBUG_MSG("daemon_interface");
/* check if the plugin exists */
if (GBL_OPTIONS->plugin && search_plugin(GBL_OPTIONS->plugin) != ESUCCESS)
FATAL_ERROR("%s plugin can not be found !", GBL_OPTIONS->plugin);
/* build the list of active hosts */
build_hosts_list();
/* start the mitm attack */
mitm_start();
/* initialize the sniffing method */
EXECUTE(GBL_SNIFF->start);
/* if we have to activate a plugin */
if (GBL_OPTIONS->plugin && plugin_init(GBL_OPTIONS->plugin) != PLUGIN_RUNNING)
/* end the interface */
return;
/* discard the messages */
LOOP {
CANCELLATION_POINT();
sleep(1);
ui_msg_flush(MSG_ALL);
}
/* NOT REACHED */
}
