ifconfig.c: Fix possible NULL pointer deref.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson
2015-07-10 19:27:02 +02:00
parent 1147e547dc
commit a9d11d0498
+1 -1
View File
@@ -63,7 +63,7 @@ int ifconfig(char *ifname, char *addr, char *mask, int up)
}
/* Non-zero IP address */
if (mask && strcmp(addr, "0.0.0.0")) {
if (mask && addr && strcmp(addr, "0.0.0.0")) {
if (inet_pton(AF_INET, mask, &sin->sin_addr) == -1)
ret = ioctl(sd, SIOCSIFNETMASK, &ifr);
}