| package openssh |
| |
| import ( |
| sshfx "github.com/pkg/sftp/internal/encoding/ssh/filexfer" |
| ) |
| |
| const extensionFSync = "fsync@openssh.com" |
| |
| // RegisterExtensionFSync registers the "fsync@openssh.com" extended packet with the encoding/ssh/filexfer package. |
| func RegisterExtensionFSync() { |
| sshfx.RegisterExtendedPacketType(extensionFSync, func() sshfx.ExtendedData { |
| return new(FSyncExtendedPacket) |
| }) |
| } |
| |
| // ExtensionFSync returns an ExtensionPair suitable to append into an sshfx.InitPacket or sshfx.VersionPacket. |
| func ExtensionFSync() *sshfx.ExtensionPair { |
| return &sshfx.ExtensionPair{ |
| Name: extensionFSync, |
| Data: "1", |
| } |
| } |
| |
| // FSyncExtendedPacket defines the fsync@openssh.com extend packet. |
| type FSyncExtendedPacket struct { |
| Handle string |
| } |
| |
| // Type returns the SSH_FXP_EXTENDED packet type. |
| func (ep *FSyncExtendedPacket) Type() sshfx.PacketType { |
| return sshfx.PacketTypeExtended |
| } |
| |
| // MarshalPacket returns ep as a two-part binary encoding of the full extended packet. |
| func (ep *FSyncExtendedPacket) MarshalPacket(reqid uint32, b []byte) (header, payload []byte, err error) { |
| p := &sshfx.ExtendedPacket{ |
| ExtendedRequest: extensionFSync, |
| |
| Data: ep, |
| } |
| return p.MarshalPacket(reqid, b) |
| } |
| |
| // MarshalInto encodes ep into the binary encoding of the fsync@openssh.com extended packet-specific data. |
| func (ep *FSyncExtendedPacket) MarshalInto(buf *sshfx.Buffer) { |
| buf.AppendString(ep.Handle) |
| } |
| |
| // MarshalBinary encodes ep into the binary encoding of the fsync@openssh.com extended packet-specific data. |
| // |
| // NOTE: This _only_ encodes the packet-specific data, it does not encode the full extended packet. |
| func (ep *FSyncExtendedPacket) MarshalBinary() ([]byte, error) { |
| // string(handle) |
| size := 4 + len(ep.Handle) |
| |
| buf := sshfx.NewBuffer(make([]byte, 0, size)) |
| ep.MarshalInto(buf) |
| return buf.Bytes(), nil |
| } |
| |
| // UnmarshalFrom decodes the fsync@openssh.com extended packet-specific data from buf. |
| func (ep *FSyncExtendedPacket) UnmarshalFrom(buf *sshfx.Buffer) (err error) { |
| if ep.Handle, err = buf.ConsumeString(); err != nil { |
| return err |
| } |
| |
| return nil |
| } |
| |
| // UnmarshalBinary decodes the fsync@openssh.com extended packet-specific data into ep. |
| func (ep *FSyncExtendedPacket) UnmarshalBinary(data []byte) (err error) { |
| return ep.UnmarshalFrom(sshfx.NewBuffer(data)) |
| } |