if_nameindex() returns NULL on error, if it returns NULL, we
just print the error info and return NULL.
Signed-off-by: Wenchao Hao <haowenc...@huawei.com>
Signed-off-by: Zhiqiang Liu <liuzhiqian...@huawei.com>
Signed-off-by: Wu Bo <wub...@huawei.com>
---
usr/iscsi_net_util.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/usr/iscsi_net_util.c b/usr/iscsi_net_util.c
index c38456f..10e6fa6 100644
--- a/usr/iscsi_net_util.c
+++ b/usr/iscsi_net_util.c
@@ -206,6 +206,12 @@ static char *find_vlan_dev(char *netdev, int vlan_id) {
}
ifni = if_nameindex();
+ if (!ifni) {
+ log_error("Failed to find netdev:%s", strerror(errno));
+ close(sockfd);
+ return NULL;
+ }
+
for (i = 0; ifni[i].if_index && ifni[i].if_name; i++) {
strlcpy(vlan_hwaddr.ifr_name, ifni[i].if_name, IFNAMSIZ);
ioctl(sockfd, SIOCGIFHWADDR, &vlan_hwaddr);
--
2.27.0
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