YP related cleanup, avoid bad pointer reference on HUP

svn path=/trunk/icecast/; revision=5829

src/geturl.c

@@ -134,6 +134,7 @@ void curl_shutdown()
         curl_easy_cleanup(curl_connections[i].curl_handle);
         memset(&(curl_connections[i]), 0, sizeof(curl_connections[i]));
     }
+    curl_global_cleanup();
 }
 int curl_get_connection()
 {

src/source.c

@@ -344,7 +344,7 @@ void *source_main(void *arg)
         if (config->yp_url[i]) {
             source->ypdata[source->num_yp_directories] = yp_create_ypdata();
             source->ypdata[source->num_yp_directories]->yp_url = 
-                config->yp_url[i];
+                strdup (config->yp_url[i]);
             source->ypdata[source->num_yp_directories]->yp_url_timeout = 
                 config->yp_url_timeout[i];
             source->ypdata[source->num_yp_directories]->yp_touch_interval = 0;

src/yp.c

@@ -434,6 +434,9 @@ ypdata_t *yp_create_ypdata()
 void yp_destroy_ypdata(ypdata_t *ypdata)
 {
     if (ypdata) {
+        if (ypdata->yp_url) {
+            free(ypdata->yp_url);
+        }
         if (ypdata->sid) {
             free(ypdata->sid);
         }