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path: root/vendor/github.com/pkg/sftp/packet.go
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-rw-r--r--vendor/github.com/pkg/sftp/packet.go952
1 files changed, 0 insertions, 952 deletions
diff --git a/vendor/github.com/pkg/sftp/packet.go b/vendor/github.com/pkg/sftp/packet.go
deleted file mode 100644
index 711ca50c..00000000
--- a/vendor/github.com/pkg/sftp/packet.go
+++ /dev/null
@@ -1,952 +0,0 @@
-package sftp
-
-import (
- "bytes"
- "encoding"
- "encoding/binary"
- "fmt"
- "io"
- "os"
- "reflect"
-
- "github.com/pkg/errors"
-)
-
-var (
- errShortPacket = errors.New("packet too short")
- errUnknownExtendedPacket = errors.New("unknown extended packet")
-)
-
-const (
- debugDumpTxPacket = false
- debugDumpRxPacket = false
- debugDumpTxPacketBytes = false
- debugDumpRxPacketBytes = false
-)
-
-func marshalUint32(b []byte, v uint32) []byte {
- return append(b, byte(v>>24), byte(v>>16), byte(v>>8), byte(v))
-}
-
-func marshalUint64(b []byte, v uint64) []byte {
- return marshalUint32(marshalUint32(b, uint32(v>>32)), uint32(v))
-}
-
-func marshalString(b []byte, v string) []byte {
- return append(marshalUint32(b, uint32(len(v))), v...)
-}
-
-func marshal(b []byte, v interface{}) []byte {
- if v == nil {
- return b
- }
- switch v := v.(type) {
- case uint8:
- return append(b, v)
- case uint32:
- return marshalUint32(b, v)
- case uint64:
- return marshalUint64(b, v)
- case string:
- return marshalString(b, v)
- case os.FileInfo:
- return marshalFileInfo(b, v)
- default:
- switch d := reflect.ValueOf(v); d.Kind() {
- case reflect.Struct:
- for i, n := 0, d.NumField(); i < n; i++ {
- b = append(marshal(b, d.Field(i).Interface()))
- }
- return b
- case reflect.Slice:
- for i, n := 0, d.Len(); i < n; i++ {
- b = append(marshal(b, d.Index(i).Interface()))
- }
- return b
- default:
- panic(fmt.Sprintf("marshal(%#v): cannot handle type %T", v, v))
- }
- }
-}
-
-func unmarshalUint32(b []byte) (uint32, []byte) {
- v := uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
- return v, b[4:]
-}
-
-func unmarshalUint32Safe(b []byte) (uint32, []byte, error) {
- var v uint32
- if len(b) < 4 {
- return 0, nil, errShortPacket
- }
- v, b = unmarshalUint32(b)
- return v, b, nil
-}
-
-func unmarshalUint64(b []byte) (uint64, []byte) {
- h, b := unmarshalUint32(b)
- l, b := unmarshalUint32(b)
- return uint64(h)<<32 | uint64(l), b
-}
-
-func unmarshalUint64Safe(b []byte) (uint64, []byte, error) {
- var v uint64
- if len(b) < 8 {
- return 0, nil, errShortPacket
- }
- v, b = unmarshalUint64(b)
- return v, b, nil
-}
-
-func unmarshalString(b []byte) (string, []byte) {
- n, b := unmarshalUint32(b)
- return string(b[:n]), b[n:]
-}
-
-func unmarshalStringSafe(b []byte) (string, []byte, error) {
- n, b, err := unmarshalUint32Safe(b)
- if err != nil {
- return "", nil, err
- }
- if int64(n) > int64(len(b)) {
- return "", nil, errShortPacket
- }
- return string(b[:n]), b[n:], nil
-}
-
-// sendPacket marshals p according to RFC 4234.
-func sendPacket(w io.Writer, m encoding.BinaryMarshaler) error {
- bb, err := m.MarshalBinary()
- if err != nil {
- return errors.Errorf("binary marshaller failed: %v", err)
- }
- if debugDumpTxPacketBytes {
- debug("send packet: %s %d bytes %x", fxp(bb[0]), len(bb), bb[1:])
- } else if debugDumpTxPacket {
- debug("send packet: %s %d bytes", fxp(bb[0]), len(bb))
- }
- l := uint32(len(bb))
- hdr := []byte{byte(l >> 24), byte(l >> 16), byte(l >> 8), byte(l)}
- _, err = w.Write(hdr)
- if err != nil {
- return errors.Errorf("failed to send packet header: %v", err)
- }
- _, err = w.Write(bb)
- if err != nil {
- return errors.Errorf("failed to send packet body: %v", err)
- }
- return nil
-}
-
-func recvPacket(r io.Reader) (uint8, []byte, error) {
- var b = []byte{0, 0, 0, 0}
- if _, err := io.ReadFull(r, b); err != nil {
- return 0, nil, err
- }
- l, _ := unmarshalUint32(b)
- b = make([]byte, l)
- if _, err := io.ReadFull(r, b); err != nil {
- debug("recv packet %d bytes: err %v", l, err)
- return 0, nil, err
- }
- if debugDumpRxPacketBytes {
- debug("recv packet: %s %d bytes %x", fxp(b[0]), l, b[1:])
- } else if debugDumpRxPacket {
- debug("recv packet: %s %d bytes", fxp(b[0]), l)
- }
- return b[0], b[1:], nil
-}
-
-type extensionPair struct {
- Name string
- Data string
-}
-
-func unmarshalExtensionPair(b []byte) (extensionPair, []byte, error) {
- var ep extensionPair
- var err error
- ep.Name, b, err = unmarshalStringSafe(b)
- if err != nil {
- return ep, b, err
- }
- ep.Data, b, err = unmarshalStringSafe(b)
- return ep, b, err
-}
-
-// Here starts the definition of packets along with their MarshalBinary
-// implementations.
-// Manually writing the marshalling logic wins us a lot of time and
-// allocation.
-
-type sshFxInitPacket struct {
- Version uint32
- Extensions []extensionPair
-}
-
-func (p sshFxInitPacket) MarshalBinary() ([]byte, error) {
- l := 1 + 4 // byte + uint32
- for _, e := range p.Extensions {
- l += 4 + len(e.Name) + 4 + len(e.Data)
- }
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_INIT)
- b = marshalUint32(b, p.Version)
- for _, e := range p.Extensions {
- b = marshalString(b, e.Name)
- b = marshalString(b, e.Data)
- }
- return b, nil
-}
-
-func (p *sshFxInitPacket) UnmarshalBinary(b []byte) error {
- var err error
- if p.Version, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- }
- for len(b) > 0 {
- var ep extensionPair
- ep, b, err = unmarshalExtensionPair(b)
- if err != nil {
- return err
- }
- p.Extensions = append(p.Extensions, ep)
- }
- return nil
-}
-
-type sshFxVersionPacket struct {
- Version uint32
- Extensions []struct {
- Name, Data string
- }
-}
-
-func (p sshFxVersionPacket) MarshalBinary() ([]byte, error) {
- l := 1 + 4 // byte + uint32
- for _, e := range p.Extensions {
- l += 4 + len(e.Name) + 4 + len(e.Data)
- }
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_VERSION)
- b = marshalUint32(b, p.Version)
- for _, e := range p.Extensions {
- b = marshalString(b, e.Name)
- b = marshalString(b, e.Data)
- }
- return b, nil
-}
-
-func marshalIDString(packetType byte, id uint32, str string) ([]byte, error) {
- l := 1 + 4 + // type(byte) + uint32
- 4 + len(str)
-
- b := make([]byte, 0, l)
- b = append(b, packetType)
- b = marshalUint32(b, id)
- b = marshalString(b, str)
- return b, nil
-}
-
-func unmarshalIDString(b []byte, id *uint32, str *string) error {
- var err error
- *id, b, err = unmarshalUint32Safe(b)
- if err != nil {
- return err
- }
- *str, _, err = unmarshalStringSafe(b)
- return err
-}
-
-type sshFxpReaddirPacket struct {
- ID uint32
- Handle string
-}
-
-func (p sshFxpReaddirPacket) id() uint32 { return p.ID }
-
-func (p sshFxpReaddirPacket) MarshalBinary() ([]byte, error) {
- return marshalIDString(ssh_FXP_READDIR, p.ID, p.Handle)
-}
-
-func (p *sshFxpReaddirPacket) UnmarshalBinary(b []byte) error {
- return unmarshalIDString(b, &p.ID, &p.Handle)
-}
-
-type sshFxpOpendirPacket struct {
- ID uint32
- Path string
-}
-
-func (p sshFxpOpendirPacket) id() uint32 { return p.ID }
-
-func (p sshFxpOpendirPacket) MarshalBinary() ([]byte, error) {
- return marshalIDString(ssh_FXP_OPENDIR, p.ID, p.Path)
-}
-
-func (p *sshFxpOpendirPacket) UnmarshalBinary(b []byte) error {
- return unmarshalIDString(b, &p.ID, &p.Path)
-}
-
-type sshFxpLstatPacket struct {
- ID uint32
- Path string
-}
-
-func (p sshFxpLstatPacket) id() uint32 { return p.ID }
-
-func (p sshFxpLstatPacket) MarshalBinary() ([]byte, error) {
- return marshalIDString(ssh_FXP_LSTAT, p.ID, p.Path)
-}
-
-func (p *sshFxpLstatPacket) UnmarshalBinary(b []byte) error {
- return unmarshalIDString(b, &p.ID, &p.Path)
-}
-
-type sshFxpStatPacket struct {
- ID uint32
- Path string
-}
-
-func (p sshFxpStatPacket) id() uint32 { return p.ID }
-
-func (p sshFxpStatPacket) MarshalBinary() ([]byte, error) {
- return marshalIDString(ssh_FXP_STAT, p.ID, p.Path)
-}
-
-func (p *sshFxpStatPacket) UnmarshalBinary(b []byte) error {
- return unmarshalIDString(b, &p.ID, &p.Path)
-}
-
-type sshFxpFstatPacket struct {
- ID uint32
- Handle string
-}
-
-func (p sshFxpFstatPacket) id() uint32 { return p.ID }
-
-func (p sshFxpFstatPacket) MarshalBinary() ([]byte, error) {
- return marshalIDString(ssh_FXP_FSTAT, p.ID, p.Handle)
-}
-
-func (p *sshFxpFstatPacket) UnmarshalBinary(b []byte) error {
- return unmarshalIDString(b, &p.ID, &p.Handle)
-}
-
-type sshFxpClosePacket struct {
- ID uint32
- Handle string
-}
-
-func (p sshFxpClosePacket) id() uint32 { return p.ID }
-
-func (p sshFxpClosePacket) MarshalBinary() ([]byte, error) {
- return marshalIDString(ssh_FXP_CLOSE, p.ID, p.Handle)
-}
-
-func (p *sshFxpClosePacket) UnmarshalBinary(b []byte) error {
- return unmarshalIDString(b, &p.ID, &p.Handle)
-}
-
-type sshFxpRemovePacket struct {
- ID uint32
- Filename string
-}
-
-func (p sshFxpRemovePacket) id() uint32 { return p.ID }
-
-func (p sshFxpRemovePacket) MarshalBinary() ([]byte, error) {
- return marshalIDString(ssh_FXP_REMOVE, p.ID, p.Filename)
-}
-
-func (p *sshFxpRemovePacket) UnmarshalBinary(b []byte) error {
- return unmarshalIDString(b, &p.ID, &p.Filename)
-}
-
-type sshFxpRmdirPacket struct {
- ID uint32
- Path string
-}
-
-func (p sshFxpRmdirPacket) id() uint32 { return p.ID }
-
-func (p sshFxpRmdirPacket) MarshalBinary() ([]byte, error) {
- return marshalIDString(ssh_FXP_RMDIR, p.ID, p.Path)
-}
-
-func (p *sshFxpRmdirPacket) UnmarshalBinary(b []byte) error {
- return unmarshalIDString(b, &p.ID, &p.Path)
-}
-
-type sshFxpSymlinkPacket struct {
- ID uint32
- Targetpath string
- Linkpath string
-}
-
-func (p sshFxpSymlinkPacket) id() uint32 { return p.ID }
-
-func (p sshFxpSymlinkPacket) MarshalBinary() ([]byte, error) {
- l := 1 + 4 + // type(byte) + uint32
- 4 + len(p.Targetpath) +
- 4 + len(p.Linkpath)
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_SYMLINK)
- b = marshalUint32(b, p.ID)
- b = marshalString(b, p.Targetpath)
- b = marshalString(b, p.Linkpath)
- return b, nil
-}
-
-func (p *sshFxpSymlinkPacket) UnmarshalBinary(b []byte) error {
- var err error
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.Targetpath, b, err = unmarshalStringSafe(b); err != nil {
- return err
- } else if p.Linkpath, _, err = unmarshalStringSafe(b); err != nil {
- return err
- }
- return nil
-}
-
-type sshFxpReadlinkPacket struct {
- ID uint32
- Path string
-}
-
-func (p sshFxpReadlinkPacket) id() uint32 { return p.ID }
-
-func (p sshFxpReadlinkPacket) MarshalBinary() ([]byte, error) {
- return marshalIDString(ssh_FXP_READLINK, p.ID, p.Path)
-}
-
-func (p *sshFxpReadlinkPacket) UnmarshalBinary(b []byte) error {
- return unmarshalIDString(b, &p.ID, &p.Path)
-}
-
-type sshFxpRealpathPacket struct {
- ID uint32
- Path string
-}
-
-func (p sshFxpRealpathPacket) id() uint32 { return p.ID }
-
-func (p sshFxpRealpathPacket) MarshalBinary() ([]byte, error) {
- return marshalIDString(ssh_FXP_REALPATH, p.ID, p.Path)
-}
-
-func (p *sshFxpRealpathPacket) UnmarshalBinary(b []byte) error {
- return unmarshalIDString(b, &p.ID, &p.Path)
-}
-
-type sshFxpNameAttr struct {
- Name string
- LongName string
- Attrs []interface{}
-}
-
-func (p sshFxpNameAttr) MarshalBinary() ([]byte, error) {
- b := []byte{}
- b = marshalString(b, p.Name)
- b = marshalString(b, p.LongName)
- for _, attr := range p.Attrs {
- b = marshal(b, attr)
- }
- return b, nil
-}
-
-type sshFxpNamePacket struct {
- ID uint32
- NameAttrs []sshFxpNameAttr
-}
-
-func (p sshFxpNamePacket) MarshalBinary() ([]byte, error) {
- b := []byte{}
- b = append(b, ssh_FXP_NAME)
- b = marshalUint32(b, p.ID)
- b = marshalUint32(b, uint32(len(p.NameAttrs)))
- for _, na := range p.NameAttrs {
- ab, err := na.MarshalBinary()
- if err != nil {
- return nil, err
- }
-
- b = append(b, ab...)
- }
- return b, nil
-}
-
-type sshFxpOpenPacket struct {
- ID uint32
- Path string
- Pflags uint32
- Flags uint32 // ignored
-}
-
-func (p sshFxpOpenPacket) id() uint32 { return p.ID }
-
-func (p sshFxpOpenPacket) MarshalBinary() ([]byte, error) {
- l := 1 + 4 +
- 4 + len(p.Path) +
- 4 + 4
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_OPEN)
- b = marshalUint32(b, p.ID)
- b = marshalString(b, p.Path)
- b = marshalUint32(b, p.Pflags)
- b = marshalUint32(b, p.Flags)
- return b, nil
-}
-
-func (p *sshFxpOpenPacket) UnmarshalBinary(b []byte) error {
- var err error
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.Path, b, err = unmarshalStringSafe(b); err != nil {
- return err
- } else if p.Pflags, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.Flags, _, err = unmarshalUint32Safe(b); err != nil {
- return err
- }
- return nil
-}
-
-type sshFxpReadPacket struct {
- ID uint32
- Handle string
- Offset uint64
- Len uint32
-}
-
-func (p sshFxpReadPacket) id() uint32 { return p.ID }
-
-func (p sshFxpReadPacket) MarshalBinary() ([]byte, error) {
- l := 1 + 4 + // type(byte) + uint32
- 4 + len(p.Handle) +
- 8 + 4 // uint64 + uint32
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_READ)
- b = marshalUint32(b, p.ID)
- b = marshalString(b, p.Handle)
- b = marshalUint64(b, p.Offset)
- b = marshalUint32(b, p.Len)
- return b, nil
-}
-
-func (p *sshFxpReadPacket) UnmarshalBinary(b []byte) error {
- var err error
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.Handle, b, err = unmarshalStringSafe(b); err != nil {
- return err
- } else if p.Offset, b, err = unmarshalUint64Safe(b); err != nil {
- return err
- } else if p.Len, _, err = unmarshalUint32Safe(b); err != nil {
- return err
- }
- return nil
-}
-
-type sshFxpRenamePacket struct {
- ID uint32
- Oldpath string
- Newpath string
-}
-
-func (p sshFxpRenamePacket) id() uint32 { return p.ID }
-
-func (p sshFxpRenamePacket) MarshalBinary() ([]byte, error) {
- l := 1 + 4 + // type(byte) + uint32
- 4 + len(p.Oldpath) +
- 4 + len(p.Newpath)
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_RENAME)
- b = marshalUint32(b, p.ID)
- b = marshalString(b, p.Oldpath)
- b = marshalString(b, p.Newpath)
- return b, nil
-}
-
-func (p *sshFxpRenamePacket) UnmarshalBinary(b []byte) error {
- var err error
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.Oldpath, b, err = unmarshalStringSafe(b); err != nil {
- return err
- } else if p.Newpath, _, err = unmarshalStringSafe(b); err != nil {
- return err
- }
- return nil
-}
-
-type sshFxpPosixRenamePacket struct {
- ID uint32
- Oldpath string
- Newpath string
-}
-
-func (p sshFxpPosixRenamePacket) id() uint32 { return p.ID }
-
-func (p sshFxpPosixRenamePacket) MarshalBinary() ([]byte, error) {
- const ext = "posix-rename@openssh.com"
- l := 1 + 4 + // type(byte) + uint32
- 4 + len(ext) +
- 4 + len(p.Oldpath) +
- 4 + len(p.Newpath)
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_EXTENDED)
- b = marshalUint32(b, p.ID)
- b = marshalString(b, ext)
- b = marshalString(b, p.Oldpath)
- b = marshalString(b, p.Newpath)
- return b, nil
-}
-
-type sshFxpWritePacket struct {
- ID uint32
- Handle string
- Offset uint64
- Length uint32
- Data []byte
-}
-
-func (p sshFxpWritePacket) id() uint32 { return p.ID }
-
-func (p sshFxpWritePacket) MarshalBinary() ([]byte, error) {
- l := 1 + 4 + // type(byte) + uint32
- 4 + len(p.Handle) +
- 8 + 4 + // uint64 + uint32
- len(p.Data)
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_WRITE)
- b = marshalUint32(b, p.ID)
- b = marshalString(b, p.Handle)
- b = marshalUint64(b, p.Offset)
- b = marshalUint32(b, p.Length)
- b = append(b, p.Data...)
- return b, nil
-}
-
-func (p *sshFxpWritePacket) UnmarshalBinary(b []byte) error {
- var err error
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.Handle, b, err = unmarshalStringSafe(b); err != nil {
- return err
- } else if p.Offset, b, err = unmarshalUint64Safe(b); err != nil {
- return err
- } else if p.Length, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if uint32(len(b)) < p.Length {
- return errShortPacket
- }
-
- p.Data = append([]byte{}, b[:p.Length]...)
- return nil
-}
-
-type sshFxpMkdirPacket struct {
- ID uint32
- Path string
- Flags uint32 // ignored
-}
-
-func (p sshFxpMkdirPacket) id() uint32 { return p.ID }
-
-func (p sshFxpMkdirPacket) MarshalBinary() ([]byte, error) {
- l := 1 + 4 + // type(byte) + uint32
- 4 + len(p.Path) +
- 4 // uint32
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_MKDIR)
- b = marshalUint32(b, p.ID)
- b = marshalString(b, p.Path)
- b = marshalUint32(b, p.Flags)
- return b, nil
-}
-
-func (p *sshFxpMkdirPacket) UnmarshalBinary(b []byte) error {
- var err error
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.Path, b, err = unmarshalStringSafe(b); err != nil {
- return err
- } else if p.Flags, _, err = unmarshalUint32Safe(b); err != nil {
- return err
- }
- return nil
-}
-
-type sshFxpSetstatPacket struct {
- ID uint32
- Path string
- Flags uint32
- Attrs interface{}
-}
-
-type sshFxpFsetstatPacket struct {
- ID uint32
- Handle string
- Flags uint32
- Attrs interface{}
-}
-
-func (p sshFxpSetstatPacket) id() uint32 { return p.ID }
-func (p sshFxpFsetstatPacket) id() uint32 { return p.ID }
-
-func (p sshFxpSetstatPacket) MarshalBinary() ([]byte, error) {
- l := 1 + 4 + // type(byte) + uint32
- 4 + len(p.Path) +
- 4 // uint32 + uint64
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_SETSTAT)
- b = marshalUint32(b, p.ID)
- b = marshalString(b, p.Path)
- b = marshalUint32(b, p.Flags)
- b = marshal(b, p.Attrs)
- return b, nil
-}
-
-func (p sshFxpFsetstatPacket) MarshalBinary() ([]byte, error) {
- l := 1 + 4 + // type(byte) + uint32
- 4 + len(p.Handle) +
- 4 // uint32 + uint64
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_FSETSTAT)
- b = marshalUint32(b, p.ID)
- b = marshalString(b, p.Handle)
- b = marshalUint32(b, p.Flags)
- b = marshal(b, p.Attrs)
- return b, nil
-}
-
-func (p *sshFxpSetstatPacket) UnmarshalBinary(b []byte) error {
- var err error
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.Path, b, err = unmarshalStringSafe(b); err != nil {
- return err
- } else if p.Flags, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- }
- p.Attrs = b
- return nil
-}
-
-func (p *sshFxpFsetstatPacket) UnmarshalBinary(b []byte) error {
- var err error
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.Handle, b, err = unmarshalStringSafe(b); err != nil {
- return err
- } else if p.Flags, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- }
- p.Attrs = b
- return nil
-}
-
-type sshFxpHandlePacket struct {
- ID uint32
- Handle string
-}
-
-func (p sshFxpHandlePacket) MarshalBinary() ([]byte, error) {
- b := []byte{ssh_FXP_HANDLE}
- b = marshalUint32(b, p.ID)
- b = marshalString(b, p.Handle)
- return b, nil
-}
-
-type sshFxpStatusPacket struct {
- ID uint32
- StatusError
-}
-
-func (p sshFxpStatusPacket) MarshalBinary() ([]byte, error) {
- b := []byte{ssh_FXP_STATUS}
- b = marshalUint32(b, p.ID)
- b = marshalStatus(b, p.StatusError)
- return b, nil
-}
-
-type sshFxpDataPacket struct {
- ID uint32
- Length uint32
- Data []byte
-}
-
-func (p sshFxpDataPacket) MarshalBinary() ([]byte, error) {
- b := []byte{ssh_FXP_DATA}
- b = marshalUint32(b, p.ID)
- b = marshalUint32(b, p.Length)
- b = append(b, p.Data[:p.Length]...)
- return b, nil
-}
-
-func (p *sshFxpDataPacket) UnmarshalBinary(b []byte) error {
- var err error
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.Length, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if uint32(len(b)) < p.Length {
- return errors.New("truncated packet")
- }
-
- p.Data = make([]byte, p.Length)
- copy(p.Data, b)
- return nil
-}
-
-type sshFxpStatvfsPacket struct {
- ID uint32
- Path string
-}
-
-func (p sshFxpStatvfsPacket) id() uint32 { return p.ID }
-
-func (p sshFxpStatvfsPacket) MarshalBinary() ([]byte, error) {
- l := 1 + 4 + // type(byte) + uint32
- len(p.Path) +
- len("statvfs@openssh.com")
-
- b := make([]byte, 0, l)
- b = append(b, ssh_FXP_EXTENDED)
- b = marshalUint32(b, p.ID)
- b = marshalString(b, "statvfs@openssh.com")
- b = marshalString(b, p.Path)
- return b, nil
-}
-
-// A StatVFS contains statistics about a filesystem.
-type StatVFS struct {
- ID uint32
- Bsize uint64 /* file system block size */
- Frsize uint64 /* fundamental fs block size */
- Blocks uint64 /* number of blocks (unit f_frsize) */
- Bfree uint64 /* free blocks in file system */
- Bavail uint64 /* free blocks for non-root */
- Files uint64 /* total file inodes */
- Ffree uint64 /* free file inodes */
- Favail uint64 /* free file inodes for to non-root */
- Fsid uint64 /* file system id */
- Flag uint64 /* bit mask of f_flag values */
- Namemax uint64 /* maximum filename length */
-}
-
-// TotalSpace calculates the amount of total space in a filesystem.
-func (p *StatVFS) TotalSpace() uint64 {
- return p.Frsize * p.Blocks
-}
-
-// FreeSpace calculates the amount of free space in a filesystem.
-func (p *StatVFS) FreeSpace() uint64 {
- return p.Frsize * p.Bfree
-}
-
-// Convert to ssh_FXP_EXTENDED_REPLY packet binary format
-func (p *StatVFS) MarshalBinary() ([]byte, error) {
- var buf bytes.Buffer
- buf.Write([]byte{ssh_FXP_EXTENDED_REPLY})
- err := binary.Write(&buf, binary.BigEndian, p)
- return buf.Bytes(), err
-}
-
-type sshFxpExtendedPacket struct {
- ID uint32
- ExtendedRequest string
- SpecificPacket interface {
- serverRespondablePacket
- readonly() bool
- }
-}
-
-func (p sshFxpExtendedPacket) id() uint32 { return p.ID }
-func (p sshFxpExtendedPacket) readonly() bool { return p.SpecificPacket.readonly() }
-
-func (p sshFxpExtendedPacket) respond(svr *Server) error {
- return p.SpecificPacket.respond(svr)
-}
-
-func (p *sshFxpExtendedPacket) UnmarshalBinary(b []byte) error {
- var err error
- bOrig := b
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.ExtendedRequest, _, err = unmarshalStringSafe(b); err != nil {
- return err
- }
-
- // specific unmarshalling
- switch p.ExtendedRequest {
- case "statvfs@openssh.com":
- p.SpecificPacket = &sshFxpExtendedPacketStatVFS{}
- case "posix-rename@openssh.com":
- p.SpecificPacket = &sshFxpExtendedPacketPosixRename{}
- default:
- return errUnknownExtendedPacket
- }
-
- return p.SpecificPacket.UnmarshalBinary(bOrig)
-}
-
-type sshFxpExtendedPacketStatVFS struct {
- ID uint32
- ExtendedRequest string
- Path string
-}
-
-func (p sshFxpExtendedPacketStatVFS) id() uint32 { return p.ID }
-func (p sshFxpExtendedPacketStatVFS) readonly() bool { return true }
-func (p *sshFxpExtendedPacketStatVFS) UnmarshalBinary(b []byte) error {
- var err error
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.ExtendedRequest, b, err = unmarshalStringSafe(b); err != nil {
- return err
- } else if p.Path, _, err = unmarshalStringSafe(b); err != nil {
- return err
- }
- return nil
-}
-
-type sshFxpExtendedPacketPosixRename struct {
- ID uint32
- ExtendedRequest string
- Oldpath string
- Newpath string
-}
-
-func (p sshFxpExtendedPacketPosixRename) id() uint32 { return p.ID }
-func (p sshFxpExtendedPacketPosixRename) readonly() bool { return false }
-func (p *sshFxpExtendedPacketPosixRename) UnmarshalBinary(b []byte) error {
- var err error
- if p.ID, b, err = unmarshalUint32Safe(b); err != nil {
- return err
- } else if p.ExtendedRequest, b, err = unmarshalStringSafe(b); err != nil {
- return err
- } else if p.Oldpath, b, err = unmarshalStringSafe(b); err != nil {
- return err
- } else if p.Newpath, _, err = unmarshalStringSafe(b); err != nil {
- return err
- }
- return nil
-}
-
-func (p sshFxpExtendedPacketPosixRename) respond(s *Server) error {
- err := os.Rename(p.Oldpath, p.Newpath)
- return s.sendError(p, err)
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 18:20:11 +0000