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Code Issues Releases Wiki Activity

Bug 6091 - Fix race condition around uniqueid

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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@7677 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1.2-netsec
Tilghman Lesher 20 years ago
parent 4578bc3b0c
commit 89de6c9df6
1 changed files with 3 additions and 0 deletions
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3
channel.c
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@ -94,6 +94,7 @@ struct ast_channel_spy_list {
*/ */
static int shutting_down = 0; static int shutting_down = 0;
AST_MUTEX_DEFINE_STATIC(uniquelock);
static int uniqueint = 0; static int uniqueint = 0;
unsigned long global_fin = 0, global_fout = 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->data = NULL;
tmp->fin = global_fin; tmp->fin = global_fin;
tmp->fout = global_fout; tmp->fout = global_fout;
ast_mutex_lock(&uniquelock);
snprintf(tmp->uniqueid, sizeof(tmp->uniqueid), "%li.%d", (long) time(NULL), uniqueint++); snprintf(tmp->uniqueid, sizeof(tmp->uniqueid), "%li.%d", (long) time(NULL), uniqueint++);
ast_mutex_unlock(&uniquelock);
headp = &tmp->varshead; headp = &tmp->varshead;
ast_mutex_init(&tmp->lock); ast_mutex_init(&tmp->lock);
AST_LIST_HEAD_INIT_NOLOCK(headp); AST_LIST_HEAD_INIT_NOLOCK(headp);

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