From: Roy Marples <roy@marples.name>
Date: Thu, 30 Apr 2015 10:18:45 +0000 (+0000)
Subject: Ensure errno is set if we dont find an interface.
X-Git-Tag: v6.8.2~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d23770e2f9519d1b28ac4883dd2d33cfcdcd533b;p=thirdparty%2Fdhcpcd.git

Ensure errno is set if we dont find an interface.
---

diff --git a/if.c b/if.c
index b89a5cd9..e297c305 100644
--- a/if.c
+++ b/if.c
@@ -539,9 +539,10 @@ if_discover(struct dhcpcd_ctx *ctx, int argc, char * const *argv)
 static struct interface *
 if_findindexname(struct if_head *ifaces, unsigned int idx, const char *name)
 {
-	struct interface *ifp;
 
 	if (ifaces != NULL) {
+		struct interface *ifp;
+
 		TAILQ_FOREACH(ifp, ifaces, next) {
 			if ((ifp->options == NULL ||
 			    !(ifp->options->options & DHCPCD_PFXDLGONLY)) &&
@@ -553,6 +554,8 @@ if_findindexname(struct if_head *ifaces, unsigned int idx, const char *name)
 				return ifp;
 		}
 	}
+
+	errno = ESRCH;
 	return NULL;
 }