Fix error where improper IMAP greetings would be deleted.

(closes issue ASTERISK-20435)
Reported by: fhackenberger
Patches:
	asterisk-20435-imap-del-greeting.diff uploaded by Michael L. Young (License #5026)
	(with suggested modification made by me)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@373735 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/apps/app_voicemail.c b/apps/app_voicemail.c
index 9ee4f3660dc3ecce59233886be1612994ecdfa0a..85b9171e8b74c1c9c2ced0e032b82c9df5cd4fae 100644 (file)
--- a/apps/app_voicemail.c
+++ b/apps/app_voicemail.c
@@ -1808,6 +1808,11 @@ static void vm_imap_delete(char *file, int msgnum, struct ast_vm_user *vmu)
                return;
        }
 
+       if (msgnum < 0) {
+               imap_delete_old_greeting(file, vms);
+               return;
+       }
+
        /* find real message number based on msgnum */
        /* this may be an index into vms->msgArray based on the msgnum. */
        messageNum = vms->msgArray[msgnum];