From: Hyeonsik Song <blogcin@naver.com>
Date: Thu, 5 Jul 2018 01:45:37 +0000 (+0900)
Subject: odhcpd: Check if open the ioctl socket failed
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c0f63905c74b3b0b168a9cf7903ebaec6564c24c;p=project%2Fodhcpd.git

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 9ab849a..fe4dd73 100644
--- 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;