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Merge pull request #4 from tianon/slight-netlink-cleanup

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Update NetworkChangeName to be more similar to my original
This commit is contained in:
Michael Crosby 2014-02-10 01:42:05 -05:00
commit ccf2b96fbc
1 changed files with 4 additions and 2 deletions
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6
pkg/netlink/netlink_linux.go
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@ -662,15 +662,17 @@ func getIfSocket() (int, error) {
return -1, sErr return -1, sErr
} }
// from <net/if.h>
const IFNAMSIZ = 16
func NetworkChangeName(oldName, newName string) error { func NetworkChangeName(oldName, newName string) error {
fd, err := getIfSocket() fd, err := getIfSocket()
if err != nil { if err != nil {
return err return err
} }
defer syscall.Close(fd) defer syscall.Close(fd)
IFNAMSIZ := 16
data := [32]byte{} data := [IFNAMSIZ * 2]byte{}
copy(data[:IFNAMSIZ-1], oldName) copy(data[:IFNAMSIZ-1], oldName)
copy(data[IFNAMSIZ:IFNAMSIZ*2-1], newName) copy(data[IFNAMSIZ:IFNAMSIZ*2-1], newName)