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pkg/ip: use type cast instead of untrusty error message

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Signed-off-by: Bruce Ma <brucema19901024@gmail.com>
This commit is contained in:
Bruce Ma
2020-01-29 20:03:15 +08:00
parent 832f2699c2
commit 2ff84a481e
1 changed files with 2 additions and 2 deletions
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4
pkg/ip/link_linux.go
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@ -178,7 +178,7 @@ func SetupVeth(contVethName string, mtu int, hostNS ns.NetNS) (net.Interface, ne
func DelLinkByName(ifName string) error {
iface, err := netlink.LinkByName(ifName)
if err != nil {
if err.Error() == "Link not found" {
if _, ok := err.(netlink.LinkNotFoundError); ok {
return ErrLinkNotFound
}
return fmt.Errorf("failed to lookup %q: %v", ifName, err)
@ -195,7 +195,7 @@ func DelLinkByName(ifName string) error {
func DelLinkByNameAddr(ifName string) ([]*net.IPNet, error) {
iface, err := netlink.LinkByName(ifName)
if err != nil {
if err != nil && err.Error() == "Link not found" {
if _, ok := err.(netlink.LinkNotFoundError); ok {
return nil, ErrLinkNotFound
}
return nil, fmt.Errorf("failed to lookup %q: %v", ifName, err)