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wechatopen/vendor/github.com/jackc/pgproto3/v2/gss_enc_request.go

50 lines
1.0 KiB

package pgproto3
import (
"encoding/binary"
"encoding/json"
"errors"
"github.com/jackc/pgio"
)
const gssEncReqNumber = 80877104
type GSSEncRequest struct {
}
// Frontend identifies this message as sendable by a PostgreSQL frontend.
func (*GSSEncRequest) Frontend() {}
func (dst *GSSEncRequest) Decode(src []byte) error {
if len(src) < 4 {
return errors.New("gss encoding request too short")
}
requestCode := binary.BigEndian.Uint32(src)
if requestCode != gssEncReqNumber {
return errors.New("bad gss encoding request code")
}
return nil
}
// Encode encodes src into dst. dst will include the 4 byte message length.
func (src *GSSEncRequest) Encode(dst []byte) []byte {
dst = pgio.AppendInt32(dst, 8)
dst = pgio.AppendInt32(dst, gssEncReqNumber)
return dst
}
// MarshalJSON implements encoding/json.Marshaler.
func (src GSSEncRequest) MarshalJSON() ([]byte, error) {
return json.Marshal(struct {
Type string
ProtocolVersion uint32
Parameters map[string]string
}{
Type: "GSSEncRequest",
})
}