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| author | Rich Felker <dalias@aerifal.cx> | 2014-06-03 17:53:11 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2014-06-06 17:57:36 -0400 |
| commit | f8b5cc8a7e7482560f1b781d43a271c496a6d55c (patch) | |
| tree | 2be6036b60ed8f4c0236bf5ac4ad96d1a19203a1 /src | |
| parent | 5fa12af8daeaa71add0ccd15e082c01154545def (diff) | |
| download | musl-f8b5cc8a7e7482560f1b781d43a271c496a6d55c.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.
(cherry picked from commit 8041af59881219c32267c3491bee43591d3c3fe6)
Diffstat (limited to 'src')
| -rw-r--r-- | src/network/if_nametoindex.c | 2 |
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; } |