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odhcp6c: fix build with gcc 8

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Retrieve and backport upstream patch to fix build with gcc 8

Fixes:
 - http://autobuild.buildroot.org/results/1c6f0d1f2fcd3474af81b3851d875f834a3a0a4f

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Fabrice Fontaine 2019-01-16 20:29:10 +01:00 committed by Peter Korsgaard
parent 8b4faf86c3
commit 0a91cb8534
1 changed files with 28 additions and 0 deletions
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28
package/odhcp6c/0001-dhcpv6-fix-strncpy-bounds.patch Normal file
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@ -0,0 +1,28 @@
From 327f73dd7093d04c2dbea13ee30fc3dfafc5e944 Mon Sep 17 00:00:00 2001
From: Hans Dedecker <dedeckeh@gmail.com>
Date: Sat, 21 Apr 2018 13:40:29 +0200
Subject: [PATCH] dhcpv6: fix strncpy bounds
Fixes dhcpv6.c:138:2: error: 'strncpy' specified bound 16 equals destination size [-Werror=stringop-truncation] strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
[Retrieved (and backported) from:
https://github.com/openwrt/odhcp6c/commit/327f73dd7093d04c2dbea13ee30fc3dfafc5e944]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
src/dhcpv6.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/dhcpv6.c b/src/dhcpv6.c
index 0b3585c..d70d533 100644
--- a/src/dhcpv6.c
+++ b/src/dhcpv6.c
@@ -135,7 +135,7 @@ int init_dhcpv6(const char *ifname, unsigned int options, int sol_timeout)
// Detect interface
struct ifreq ifr;
- strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name) - 1);
if (ioctl(sock, SIOCGIFINDEX, &ifr) < 0)
return -1;