From bdb99139fb41d0d057e6fec109c05373ab7acd7a Mon Sep 17 00:00:00 2001
From: tilghman <tilghman@f38db490-d61c-443f-a65b-d21fe96a405b>
Date: Fri, 30 Dec 2005 14:54:19 +0000
Subject: Bug 6091 - Fix race condition around uniqueid

git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.2@7677 f38db490-d61c-443f-a65b-d21fe96a405b
---
 channel.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'channel.c')

diff --git a/channel.c b/channel.c
index 1897fb1c6..89071211f 100644
--- a/channel.c
+++ b/channel.c
@@ -94,6 +94,7 @@ struct ast_channel_spy_list {
  */
 static int shutting_down = 0;
 
+AST_MUTEX_DEFINE_STATIC(uniquelock);
 static int uniqueint = 0;
 
 unsigned long global_fin = 0, global_fout = 0;
@@ -583,7 +584,9 @@ struct ast_channel *ast_channel_alloc(int needqueue)
 	tmp->data = NULL;
 	tmp->fin = global_fin;
 	tmp->fout = global_fout;
+	ast_mutex_lock(&uniquelock);
 	snprintf(tmp->uniqueid, sizeof(tmp->uniqueid), "%li.%d", (long) time(NULL), uniqueint++);
+	ast_mutex_unlock(&uniquelock);
 	headp = &tmp->varshead;
 	ast_mutex_init(&tmp->lock);
 	AST_LIST_HEAD_INIT_NOLOCK(headp);
-- 
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