From c2612973d06260da55509bdd1c209ceee72ceff7 Mon Sep 17 00:00:00 2001 From: Tilghman Lesher Date: Mon, 17 Aug 2009 19:57:42 +0000 Subject: Check the return value of opendir(3), or we may crash. (closes issue #15720) Reported by: tobias_e git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@212627 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- apps/app_voicemail.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'apps/app_voicemail.c') diff --git a/apps/app_voicemail.c b/apps/app_voicemail.c index 974a02961..619754db6 100644 --- a/apps/app_voicemail.c +++ b/apps/app_voicemail.c @@ -3576,7 +3576,10 @@ static int last_message_index(struct ast_vm_user *vmu, char *dir) * doing a stat repeatedly on a predicted sequence. I suspect this * is partially due to stat(2) internally doing a readdir(2) itself to * find each file. */ - msgdir = opendir(dir); + if (!(msgdir = opendir(dir))) { + return -1; + } + while ((msgdirent = readdir(msgdir))) { if (sscanf(msgdirent->d_name, "msg%30d", &msgdirint) == 1 && msgdirint < MAXMSGLIMIT) map[msgdirint] = 1; -- cgit v1.2.3