From: Roy Marples <roy@marples.name>
Date: Fri, 2 Sep 2016 14:02:45 +0000 (+0000)
Subject: Don't call snprintf needlessly.
X-Git-Tag: v6.11.4~54
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2a8cb194917f37182de9deec4765bb5b6bf9c66c;p=thirdparty%2Fdhcpcd.git

Don't call snprintf needlessly.
---

diff --git a/ipv4.c b/ipv4.c
index 6922ffe3..4d310901 100644
--- a/ipv4.c
+++ b/ipv4.c
@@ -1293,7 +1293,9 @@ ipv4_handleifa(struct dhcpcd_ctx *ctx,
 			TAILQ_INSERT_TAIL(&state->addrs, ia, next);
 		}
 		/* Mask could have changed */
-		if (mask->s_addr != INADDR_ANY) {
+		if (mask->s_addr != INADDR_ANY &&
+		    mask->s_addr != ia->mask.s_addr)
+		{
 			ia->mask = *mask;
 			snprintf(ia->saddr, sizeof(ia->saddr), "%s/%d",
 			    inet_ntoa(*addr), inet_ntocidr(*mask));