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Issue 9130 - If prev is the last item on the channel list, then evaluating

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additional conditions (e.g. name prefix) will cause a NULL dereference.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@56684 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2007-02-25 14:38:03 +00:00
parent 1c26e1c717
commit 87c0a12a03
1 changed files with 5 additions and 1 deletions
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6
channel.c
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@@ -747,7 +747,11 @@ static struct ast_channel *channel_find_locked(const struct ast_channel *prev,
if (c != prev) /* not this one */ if (c != prev) /* not this one */
continue; continue;
/* found, prepare to return c->next */ /* found, prepare to return c->next */
c = c->next; if ((c = c->next) == NULL) break;
/* If prev was the last item on the channel list, then we just
* want to return NULL, instead of trying to deref NULL in the
* next section.
*/
} }
if (name) { /* want match by name */ if (name) { /* want match by name */
if ((!namelen && strcasecmp(c->name, name)) || if ((!namelen && strcasecmp(c->name, name)) ||