diff options
Diffstat (limited to 'internal/dns/rr_aaaa.go')
| -rw-r--r-- | internal/dns/rr_aaaa.go | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/internal/dns/rr_aaaa.go b/internal/dns/rr_aaaa.go new file mode 100644 index 0000000..569c0cd --- /dev/null +++ b/internal/dns/rr_aaaa.go @@ -0,0 +1,34 @@ +package dns + +import ( + "fmt" + "net/netip" +) + +type AAAA struct { + Addr netip.Addr +} + +func (a *AAAA) Type() uint16 { + return TypeAAAA +} + +func (a *AAAA) Pack(p *packer) error { + b := a.Addr.As16() + p.buf = append(p.buf, b[:]...) + return nil +} + +func (a *AAAA) Unpack(u *unpacker, length uint16) error { + if length != 16 { + return fmt.Errorf("dns: AAAA rdata length %d != 16", length) + } + if u.off+16 > len(u.buf) { + return fmt.Errorf("dns: short AAAA rdata") + } + a.Addr = netip.AddrFrom16([16]byte(u.buf[u.off : u.off+16])) + u.off += 16 + return nil +} + +func (a *AAAA) String() string { return a.Addr.String() } |
