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authorRich Felker <dalias@aerifal.cx>2014-06-03 17:53:11 -0400
committerRich Felker <dalias@aerifal.cx>2014-06-03 17:53:11 -0400
commit8041af59881219c32267c3491bee43591d3c3fe6 (patch)
treec7dbb1381b84ef53612225441506dba5350de221 /src/network
parentd85d261ee601f7ccf0bb19c38c69e406a664fe8e (diff)
downloadmusl-8041af59881219c32267c3491bee43591d3c3fe6.tar.gz
fix if_nametoindex return value when interface does not exist
the return value is unsigned, so negative results for "errors" do not make sense; 0 is the value reserved for when the interface name does not exist.
Diffstat (limited to 'src/network')
-rw-r--r--src/network/if_nametoindex.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/network/if_nametoindex.c b/src/network/if_nametoindex.c
index fb4a1474..cb6ec054 100644
--- a/src/network/if_nametoindex.c
+++ b/src/network/if_nametoindex.c
@@ -14,5 +14,5 @@ unsigned if_nametoindex(const char *name)
strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
r = ioctl(fd, SIOCGIFINDEX, &ifr);
__syscall(SYS_close, fd);
- return r < 0 ? r : ifr.ifr_ifindex;
+ return r < 0 ? 0 : ifr.ifr_ifindex;
}