sdhcp

commit 25a4c8c5c72961fdab5de9fc38472e6fca849a4a
parent b3d202e72bacd84e7a7ae53621c33fbaa983e8aa
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Fri, 25 Apr 2014 23:03:53 +0200

creat() return on failure

Signed-off-by: Hiltjo Posthuma <hiltjo@codemadness.org>

Diffstat:
M
sdhcp.c
 | 
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sdhcp.c b/sdhcp.c
@@ -192,8 +192,10 @@ setdns(unsigned char dns[4])
 	char buf[128];
 	int fd;
 
-	if((fd = creat("/etc/resolv.conf", 0644)) == -1)
+	if((fd = creat("/etc/resolv.conf", 0644)) == -1) {
 		weprintf("can't change /etc/resolv.conf:");
+		return;
+	}
 	cat(fd, "/etc/resolv.conf.head");
 	if(snprintf(buf, sizeof(buf) - 1, "\nnameserver %d.%d.%d.%d\n",
 	         dns[0], dns[1], dns[2], dns[3]) > 0)