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Use a better method of ensuring null-termination of the buffer

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while reading the SDP when using TCP.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@218566 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Michelson
2009-09-15 15:40:14 +00:00
parent 579919e831
commit 15c7e6dea2
1 changed files with 3 additions and 2 deletions
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channels/chan_sip.c
+3 -2
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@@ -2962,12 +2962,13 @@ static void *_sip_tcp_helper_thread(struct sip_pvt *pvt, struct ast_tcptls_sessi
/* In order to know how much to read, we need the content-length header */
if (sscanf(get_header(&reqcpy, "Content-Length"), "%30d", &cl)) {
while (cl > 0) {
size_t bytes_read;
ast_mutex_lock(&tcptls_session->lock);
if (!fread(buf, MIN(sizeof(buf) - 1, cl), 1, tcptls_session->f)) {
if (!(bytes_read = fread(buf, MIN(sizeof(buf) - 1, cl), 1, tcptls_session->f))) {
ast_mutex_unlock(&tcptls_session->lock);
goto cleanup;
}
buf[sizeof(buf)-1] = '\0';
buf[bytes_read] = '\0';
ast_mutex_unlock(&tcptls_session->lock);
if (me->stop)
goto cleanup;