secsipid: clod dlopen handle on mod destroy

(cherry picked from commit 4752ad4)
kamailio · May 18, 2021 · 59e7e30 · 59e7e30
1 parent d2fd064
commit 59e7e30
Showing 1 changed file with 10 additions and 5 deletions.
diff --git a/src/modules/secsipid/secsipid_mod.c b/src/modules/secsipid/secsipid_mod.c
@@ -38,6 +38,8 @@
 
 MODULE_VERSION
 
+static void *_secsipid_dlhandle = NULL;
+
 static int secsipid_expire = 300;
 static int secsipid_timeout = 5;
 
@@ -107,6 +109,10 @@ struct module_exports exports = {
  */
 static int mod_init(void)
 {
+	if(_secsipid_dlhandle!=0) {
+		dlclose(_secsipid_dlhandle);
+		_secsipid_dlhandle = NULL;
+	}
 	return 0;
 }
 
@@ -115,7 +121,6 @@ static int mod_init(void)
  */
 static int child_init(int rank)
 {
-	void *handle = NULL;
 	char *errstr = NULL;
 	char *modpath = NULL;
 	secsipid_proc_bind_f bind_f = NULL;
@@ -135,16 +140,16 @@ static int child_init(int rank)
 /* for openbsd */
 #define RTLD_NOW DL_LAZY
 #endif
-	handle = dlopen(modpath, RTLD_NOW); /* resolve all symbols now */
-	if (handle==0) {
+	_secsipid_dlhandle = dlopen(modpath, RTLD_NOW); /* resolve all symbols now */
+	if (_secsipid_dlhandle==0) {
 		LM_ERR("could not open module <%s>: %s\n", modpath, dlerror());
 		goto error;
 	}
 	/* launch register */
-	bind_f = (secsipid_proc_bind_f)dlsym(handle, "secsipid_proc_bind");
+	bind_f = (secsipid_proc_bind_f)dlsym(_secsipid_dlhandle, "secsipid_proc_bind");
 	if (((errstr=(char*)dlerror())==NULL) && bind_f!=NULL) {
 		/* version control */
-		if (!ksr_version_control(handle, modpath)) {
+		if (!ksr_version_control(_secsipid_dlhandle, modpath)) {
 			goto error;
 		}
 		/* no error - call it */