From: Roy Marples <roy@marples.name>
Date: Tue, 29 Nov 2016 16:25:37 +0000 (+0000)
Subject: FreeBSD does not set an error when trying to get IPv6 address flags for a just depart... 
X-Git-Tag: v7.0.0-beta1~99
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f8997869fdff8698650ee9535481a7adda03ac63;p=thirdparty%2Fdhcpcd.git

FreeBSD does not set an error when trying to get IPv6 address flags for a just departed interface.
---

diff --git a/if-bsd.c b/if-bsd.c
index 0e033d17..26c2b062 100644
--- a/if-bsd.c
+++ b/if-bsd.c
@@ -1235,9 +1235,15 @@ if_ifa(struct dhcpcd_ctx *ctx, const struct ifa_msghdr *ifam)
 		if (ifam->ifam_type == RTM_DELADDR ||
 		    (addrflags = if_addrflags6(ifp, &addr6, NULL)) == -1)
 		{
-			if (ifam->ifam_type != RTM_DELADDR || errno != EEXIST)
+#ifdef __FreeBSD__
+			/* For some reason FreeBSD does't set errno
+			 * if the interface has just departed. */
+			errno = 0;
+#endif
+			if (ifam->ifam_type != RTM_DELADDR ||
+			    (errno != EEXIST && errno != 0))
 				logger(ctx, LOG_ERR,
-				    "%s: if_addrflags: %m",
+				    "%s: if_addrflags6: %m",
 				    ifp->name);
 			addrflags = 0;
 		}