90 lines
2.3 KiB
Go
90 lines
2.3 KiB
Go
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package filexfer
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// SSH_FXF_* flags.
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const (
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FlagRead = 1 << iota // SSH_FXF_READ
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FlagWrite // SSH_FXF_WRITE
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FlagAppend // SSH_FXF_APPEND
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FlagCreate // SSH_FXF_CREAT
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FlagTruncate // SSH_FXF_TRUNC
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FlagExclusive // SSH_FXF_EXCL
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)
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// OpenPacket defines the SSH_FXP_OPEN packet.
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type OpenPacket struct {
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Filename string
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PFlags uint32
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Attrs Attributes
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}
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// Type returns the SSH_FXP_xy value associated with this packet type.
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func (p *OpenPacket) Type() PacketType {
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return PacketTypeOpen
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}
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// MarshalPacket returns p as a two-part binary encoding of p.
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func (p *OpenPacket) MarshalPacket(reqid uint32, b []byte) (header, payload []byte, err error) {
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buf := NewBuffer(b)
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if buf.Cap() < 9 {
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// string(filename) + uint32(pflags) + ATTRS(attrs)
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size := 4 + len(p.Filename) + 4 + p.Attrs.Len()
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buf = NewMarshalBuffer(size)
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}
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buf.StartPacket(PacketTypeOpen, reqid)
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buf.AppendString(p.Filename)
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buf.AppendUint32(p.PFlags)
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p.Attrs.MarshalInto(buf)
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return buf.Packet(payload)
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}
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// UnmarshalPacketBody unmarshals the packet body from the given Buffer.
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// It is assumed that the uint32(request-id) has already been consumed.
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func (p *OpenPacket) UnmarshalPacketBody(buf *Buffer) (err error) {
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if p.Filename, err = buf.ConsumeString(); err != nil {
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return err
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}
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if p.PFlags, err = buf.ConsumeUint32(); err != nil {
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return err
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}
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return p.Attrs.UnmarshalFrom(buf)
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}
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// OpenDirPacket defines the SSH_FXP_OPENDIR packet.
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type OpenDirPacket struct {
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Path string
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}
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// Type returns the SSH_FXP_xy value associated with this packet type.
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func (p *OpenDirPacket) Type() PacketType {
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return PacketTypeOpenDir
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}
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// MarshalPacket returns p as a two-part binary encoding of p.
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func (p *OpenDirPacket) MarshalPacket(reqid uint32, b []byte) (header, payload []byte, err error) {
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buf := NewBuffer(b)
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if buf.Cap() < 9 {
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size := 4 + len(p.Path) // string(path)
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buf = NewMarshalBuffer(size)
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}
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buf.StartPacket(PacketTypeOpenDir, reqid)
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buf.AppendString(p.Path)
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return buf.Packet(payload)
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}
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// UnmarshalPacketBody unmarshals the packet body from the given Buffer.
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// It is assumed that the uint32(request-id) has already been consumed.
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func (p *OpenDirPacket) UnmarshalPacketBody(buf *Buffer) (err error) {
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if p.Path, err = buf.ConsumeString(); err != nil {
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return err
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}
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return nil
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}
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