sock: Check return value of setsockopt() in set_tcp_nodelay()

Check the return value of setsockopt() and panic in case it is not 0, as
in the other setsockopt() wrapper functions.

This issue was discovered by the Coverity scanner.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 5 insertions, 2 deletions

diff --git a/sock.c b/sock.c
index 40e4504..1cefb83 100644
--- a/sock.c
+++ b/sock.c
@@ -65,8 +65,11 @@ void set_socket_keepalive(int fd)
 
 void set_tcp_nodelay(int fd)
 {
-	int one = 1;
-	setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &one, sizeof(one));
+	int ret, one = 1;
+
+	ret = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &one, sizeof(one));
+	if (unlikely(ret))
+		panic("Cannot set TCP nodelay!\n");
 }
 
 int set_ipv6_only(int fd)