Fix memory leaks in app_followme find_realtime().

(closes issue ASTERISK-19055)
Reported by: Matt Jordan
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Merged revisions 349872 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 349873 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@349874 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_followme.c

@@ -952,62 +952,83 @@ static void findmeexec(struct fm_args *tpargs)
 
 static struct call_followme *find_realtime(const char *name)
 {
-	struct ast_variable *var = ast_load_realtime("followme", "name", name, SENTINEL), *v;
+	struct ast_variable *var;
+	struct ast_variable *v;
 	struct ast_config *cfg;
 	const char *catg;
-	struct call_followme *new;
-	struct ast_str *str = ast_str_create(16);
+	struct call_followme *new_follower;
+	struct ast_str *str;
 
+	str = ast_str_create(16);
+	if (!str) {
+		return NULL;
+	}
+
+	var = ast_load_realtime("followme", "name", name, SENTINEL);
 	if (!var) {
+		ast_free(str);
 		return NULL;
 	}
 
-	if (!(new = alloc_profile(name))) {
+	if (!(new_follower = alloc_profile(name))) {
+		ast_variables_destroy(var);
+		ast_free(str);
 		return NULL;
 	}
 
 	for (v = var; v; v = v->next) {
 		if (!strcasecmp(v->name, "active")) {
 			if (ast_false(v->value)) {
-				ast_mutex_destroy(&new->lock);
-				ast_free(new);
+				ast_mutex_destroy(&new_follower->lock);
+				ast_free(new_follower);
+				ast_variables_destroy(var);
+				ast_free(str);
 				return NULL;
 			}
 		} else {
-			profile_set_param(new, v->name, v->value, 0, 0);
+			profile_set_param(new_follower, v->name, v->value, 0, 0);
 		}
 	}
 
 	ast_variables_destroy(var);
-	new->realtime = 1;
+	new_follower->realtime = 1;
 
 	/* Load numbers */
-	if (!(cfg = ast_load_realtime_multientry("followme_numbers", "ordinal LIKE", "%", "name", name, SENTINEL))) {
-		ast_mutex_destroy(&new->lock);
-		ast_free(new);
+	cfg = ast_load_realtime_multientry("followme_numbers", "ordinal LIKE", "%", "name",
+		name, SENTINEL);
+	if (!cfg) {
+		ast_mutex_destroy(&new_follower->lock);
+		ast_free(new_follower);
+		ast_free(str);
 		return NULL;
 	}
 
 	for (catg = ast_category_browse(cfg, NULL); catg; catg = ast_category_browse(cfg, catg)) {
-		const char *numstr, *timeoutstr, *ordstr;
+		const char *numstr;
+		const char *timeoutstr;
+		const char *ordstr;
 		int timeout;
 		struct number *cur;
+
 		if (!(numstr = ast_variable_retrieve(cfg, catg, "phonenumber"))) {
 			continue;
 		}
-		if (!(timeoutstr = ast_variable_retrieve(cfg, catg, "timeout")) || sscanf(timeoutstr, "%30d", &timeout) != 1 || timeout < 1) {
+		if (!(timeoutstr = ast_variable_retrieve(cfg, catg, "timeout"))
+			|| sscanf(timeoutstr, "%30d", &timeout) != 1
+			|| timeout < 1) {
 			timeout = 25;
 		}
 		/* This one has to exist; it was part of the query */
 		ordstr = ast_variable_retrieve(cfg, catg, "ordinal");
 		ast_str_set(&str, 0, "%s", numstr);
 		if ((cur = create_followme_number(ast_str_buffer(str), timeout, atoi(ordstr)))) {
-			AST_LIST_INSERT_TAIL(&new->numbers, cur, entry);
+			AST_LIST_INSERT_TAIL(&new_follower->numbers, cur, entry);
 		}
 	}
 	ast_config_destroy(cfg);
 
-	return new;
+	ast_free(str);
+	return new_follower;
 }
 
 static void end_bridge_callback(void *data)