From 0ed8f6ff5f45045f487304428af106c769582dea Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Wed, 13 Feb 2019 04:04:33 +0100
Subject: [PATCH] libip: don't reject ipmask in v6 form for v4 address

---
 sys/src/libip/parseip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/src/libip/parseip.c b/sys/src/libip/parseip.c
index ab7bfe0c8..1bad8b013 100644
--- a/sys/src/libip/parseip.c
+++ b/sys/src/libip/parseip.c
@@ -156,7 +156,7 @@ parseipmask(uchar *to, char *from, int v4)
 		x = parseip(to, from);
 		if(memcmp(to, v4prefix, IPv4off) == 0)
 			memset(to, 0xff, IPv4off);
-		else if(v4)
+		else if(v4 && memcmp(to, IPallbits, IPv4off) != 0)
 			x = -1;
 	}
 	return x;