From: Roy Marples <roy@marples.name>
Date: Tue, 23 Jul 2019 13:31:07 +0000 (+0100)
Subject: Linux: Care about the return of setsockopt
X-Git-Tag: v8.0.0~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6c7e8b7255dfef273b7d889433d0dbee2ca664b;p=thirdparty%2Fdhcpcd.git

Linux: Care about the return of setsockopt
---

diff --git a/src/if-linux.c b/src/if-linux.c
index 88060c9b..cede7237 100644
--- a/src/if-linux.c
+++ b/src/if-linux.c
@@ -320,8 +320,9 @@ if_opensockets_os(struct dhcpcd_ctx *ctx)
 	if (ctx->link_fd == -1)
 		return -1;
 #ifdef NETLINK_BROADCAST_ERROR
-	setsockopt(ctx->link_fd, SOL_NETLINK, NETLINK_BROADCAST_ERROR,
-	    &on, sizeof(on));
+	if (setsockopt(ctx->link_fd, SOL_NETLINK, NETLINK_BROADCAST_ERROR,
+	    &on, sizeof(on)) == -1)
+		return -1;
 #endif
 
 	if ((priv = calloc(1, sizeof(*priv))) == NULL)