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-rw-r--r--openbsc/src/libmgcp/mgcp_protocol.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/openbsc/src/libmgcp/mgcp_protocol.c b/openbsc/src/libmgcp/mgcp_protocol.c
index db8354abf..ae275a890 100644
--- a/openbsc/src/libmgcp/mgcp_protocol.c
+++ b/openbsc/src/libmgcp/mgcp_protocol.c
@@ -883,9 +883,11 @@ uint32_t mgcp_rtp_packet_duration(struct mgcp_endpoint *endp,
static int mgcp_parse_osmux_cid(const char *line)
{
- uint32_t osmux_cid;
+ int osmux_cid;
+
+ if (sscanf(line + 2, "Osmux: %u", &osmux_cid) != 1)
+ return -1;
- sscanf(line + 2, "Osmux: %u", &osmux_cid);
if (osmux_cid > OSMUX_CID_MAX) {
LOGP(DMGCP, LOGL_ERROR, "Osmux ID too large: %u > %u\n",
osmux_cid, OSMUX_CID_MAX);