diff options
Diffstat (limited to 'src/tun_linux.go')
| -rw-r--r-- | src/tun_linux.go | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/src/tun_linux.go b/src/tun_linux.go index 58a762a..accc6c6 100644 --- a/src/tun_linux.go +++ b/src/tun_linux.go @@ -120,14 +120,6 @@ func (tun *NativeTun) Name() string { return tun.name } -func toInt32(val []byte) int32 { - n := binary.LittleEndian.Uint32(val[:4]) - if n >= (1 << 31) { - return -int32(^n) - 1 - } - return int32(n) -} - func getDummySock() (int, error) { return unix.Socket( unix.AF_INET, @@ -157,7 +149,8 @@ func getIFIndex(name string) (int32, error) { return 0, errno } - return toInt32(ifr[unix.IFNAMSIZ:]), nil + index := binary.LittleEndian.Uint32(ifr[unix.IFNAMSIZ:]) + return toInt32(index), nil } func (tun *NativeTun) setMTU(n int) error { |