From 207d124dfeb141a7ed9333a3666970752a83db40 Mon Sep 17 00:00:00 2001
From: Jacob Moody <moody@posixcafe.org>
Date: Sun, 5 Jun 2022 18:02:58 +0000
Subject: ip/dhcpd: properly skip past ipv6 addresses in addrsopt

If the first address passed happened to be an ipv6
address we would send a malformed option by never including
a ipv4 address.
---
 sys/src/cmd/ip/dhcpd/dhcpd.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'sys/src/cmd/ip')

diff --git a/sys/src/cmd/ip/dhcpd/dhcpd.c b/sys/src/cmd/ip/dhcpd/dhcpd.c
index 93b83c8f8..c5b708aa9 100644
--- a/sys/src/cmd/ip/dhcpd/dhcpd.c
+++ b/sys/src/cmd/ip/dhcpd/dhcpd.c
@@ -1477,6 +1477,7 @@ addrsopt(Req *rp, int t, uchar **ip, int i)
 	while(i-- > 0){
 		if (!isv4(*ip)) {
 			op = seprint(op, oe, " skipping %I ", *ip);
+			ip++;
 			continue;
 		}
 		v6tov4(rp->p, *ip);
-- 
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