diff options
Diffstat (limited to 'vendor/golang.org/x/net/dns/dnsmessage/message.go')
| -rw-r--r-- | vendor/golang.org/x/net/dns/dnsmessage/message.go | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/vendor/golang.org/x/net/dns/dnsmessage/message.go b/vendor/golang.org/x/net/dns/dnsmessage/message.go index 19b260dea..c7244b782 100644 --- a/vendor/golang.org/x/net/dns/dnsmessage/message.go +++ b/vendor/golang.org/x/net/dns/dnsmessage/message.go @@ -789,6 +789,12 @@ func (m *Message) Unpack(msg []byte) error { // Pack packs a full Message. func (m *Message) Pack() ([]byte, error) { + return m.AppendPack(make([]byte, 0, packStartingCap)) +} + +// AppendPack is like Pack but appends the full Message to b and returns the +// extended buffer. +func (m *Message) AppendPack(b []byte) ([]byte, error) { // Validate the lengths. It is very unlikely that anyone will try to // pack more than 65535 of any particular type, but it is possible and // we should fail gracefully. @@ -813,9 +819,7 @@ func (m *Message) Pack() ([]byte, error) { h.authorities = uint16(len(m.Authorities)) h.additionals = uint16(len(m.Additionals)) - msg := make([]byte, 0, packStartingCap) - - msg = h.pack(msg) + msg := h.pack(b) // RFC 1035 allows (but does not require) compression for packing. RFC // 1035 requires unpacking implementations to support compression, so |