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Date: Fri, 15 Jan 2016 09:39:44 +0000
From: Ron Yorston <rmy@...ppery.org>
To: musl@...ts.openwall.com
Subject: [PATCH] fix if_nametoindex return value when socket open fails

The return value of if_nametoindex is unsigned; it should return 0
on error.
---
 src/network/if_nametoindex.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/network/if_nametoindex.c b/src/network/if_nametoindex.c
index cb6ec05..331413c 100644
--- a/src/network/if_nametoindex.c
+++ b/src/network/if_nametoindex.c
@@ -10,7 +10,7 @@ unsigned if_nametoindex(const char *name)
 	struct ifreq ifr;
 	int fd, r;
 
-	if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) return -1;
+	if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) return 0;
 	strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
 	r = ioctl(fd, SIOCGIFINDEX, &ifr);
 	__syscall(SYS_close, fd);
-- 
2.5.0

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