odhcpd: Check if open the ioctl socket failed

Signed-off-by: Hyeonsik Song <blogcin@naver.com>

diff --git a/src/odhcpd.c b/src/odhcpd.c
index 9ab849aa75086a9e8d9b8b50b7f97284ecf45115..fe4dd732731bcc6405b5839fce77e59b87df5866 100644 (file)
--- a/src/odhcpd.c
+++ b/src/odhcpd.c
@@ -91,6 +91,9 @@ int main(int argc, char **argv)
 
        ioctl_sock = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
 
+       if (ioctl_sock < 0)
+               return 4;
+
        if ((urandom_fd = open("/dev/urandom", O_RDONLY | O_CLOEXEC)) < 0)
                return 4;