strdup() may return NULL in append_addr(), and we should do the
check for its return value before operating it.
Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx>
---
src/apps/sctp_test.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/apps/sctp_test.c b/src/apps/sctp_test.c
index e382804..59fd4ad 100644
--- a/src/apps/sctp_test.c
+++ b/src/apps/sctp_test.c
@@ -499,6 +499,9 @@ append_addr(const char *parm, struct sockaddr *addrs, int *ret_count)
char *ifname;
int ifindex = 0;
+ if (!ipaddr)
+ return NULL;
+
/* check the interface. */
ifname = strchr(ipaddr,'%');
if (ifname) {
--
2.27.0
