diff options
Diffstat (limited to 'libgo/go/net/lookup.go')
| -rw-r--r-- | libgo/go/net/lookup.go | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/libgo/go/net/lookup.go b/libgo/go/net/lookup.go index 9cebd10..5f71198 100644 --- a/libgo/go/net/lookup.go +++ b/libgo/go/net/lookup.go @@ -204,6 +204,31 @@ func (r *Resolver) LookupIPAddr(ctx context.Context, host string) ([]IPAddr, err return r.lookupIPAddr(ctx, "ip", host) } +// LookupIP looks up host for the given network using the local resolver. +// It returns a slice of that host's IP addresses of the type specified by +// network. +// network must be one of "ip", "ip4" or "ip6". +func (r *Resolver) LookupIP(ctx context.Context, network, host string) ([]IP, error) { + afnet, _, err := parseNetwork(ctx, network, false) + if err != nil { + return nil, err + } + switch afnet { + case "ip", "ip4", "ip6": + default: + return nil, UnknownNetworkError(network) + } + addrs, err := r.internetAddrList(ctx, afnet, host) + if err != nil { + return nil, err + } + ips := make([]IP, 0, len(addrs)) + for _, addr := range addrs { + ips = append(ips, addr.(*IPAddr).IP) + } + return ips, nil +} + // onlyValuesCtx is a context that uses an underlying context // for value lookup if the underlying context hasn't yet expired. type onlyValuesCtx struct { |