From: Steven Barth <steven@midlink.org>
Date: Wed, 30 Oct 2013 12:43:15 +0000 (+0100)
Subject: Fix compilation on 32-bit platforms
X-Git-Tag: debian/1.1+git20160131-1~112
X-Git-Url: https://git.decadent.org.uk/gitweb/?a=commitdiff_plain;h=39e84aa6f7c4b6b70149abfa7e786dc0c893caf5;p=odhcp6c.git

Fix compilation on 32-bit platforms
---

diff --git a/src/ra.c b/src/ra.c
index aa03ff4..971a172 100644
--- a/src/ra.c
+++ b/src/ra.c
@@ -161,7 +161,8 @@ bool ra_link_up(void)
 
 	do {
 		read = recv(rtnl, &resp, sizeof(resp), MSG_DONTWAIT);
-		if (!NLMSG_OK(&resp.hdr, read) || resp.hdr.nlmsg_type != RTM_NEWLINK ||
+		if (read < 0 || !NLMSG_OK(&resp.hdr, (size_t)read) ||
+				resp.hdr.nlmsg_type != RTM_NEWLINK ||
 				resp.msg.ifi_index != if_index)
 			continue;