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Diffstat (limited to 'vendor/golang.org/x/crypto/openpgp/packet/opaque.go')
-rw-r--r--vendor/golang.org/x/crypto/openpgp/packet/opaque.go162
1 files changed, 0 insertions, 162 deletions
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/opaque.go b/vendor/golang.org/x/crypto/openpgp/packet/opaque.go
deleted file mode 100644
index 456d807..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/opaque.go
+++ /dev/null
@@ -1,162 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
- "bytes"
- "io"
- "io/ioutil"
-
- "golang.org/x/crypto/openpgp/errors"
-)
-
-// OpaquePacket represents an OpenPGP packet as raw, unparsed data. This is
-// useful for splitting and storing the original packet contents separately,
-// handling unsupported packet types or accessing parts of the packet not yet
-// implemented by this package.
-type OpaquePacket struct {
- // Packet type
- Tag uint8
- // Reason why the packet was parsed opaquely
- Reason error
- // Binary contents of the packet data
- Contents []byte
-}
-
-func (op *OpaquePacket) parse(r io.Reader) (err error) {
- op.Contents, err = ioutil.ReadAll(r)
- return
-}
-
-// Serialize marshals the packet to a writer in its original form, including
-// the packet header.
-func (op *OpaquePacket) Serialize(w io.Writer) (err error) {
- err = serializeHeader(w, packetType(op.Tag), len(op.Contents))
- if err == nil {
- _, err = w.Write(op.Contents)
- }
- return
-}
-
-// Parse attempts to parse the opaque contents into a structure supported by
-// this package. If the packet is not known then the result will be another
-// OpaquePacket.
-func (op *OpaquePacket) Parse() (p Packet, err error) {
- hdr := bytes.NewBuffer(nil)
- err = serializeHeader(hdr, packetType(op.Tag), len(op.Contents))
- if err != nil {
- op.Reason = err
- return op, err
- }
- p, err = Read(io.MultiReader(hdr, bytes.NewBuffer(op.Contents)))
- if err != nil {
- op.Reason = err
- p = op
- }
- return
-}
-
-// OpaqueReader reads OpaquePackets from an io.Reader.
-type OpaqueReader struct {
- r io.Reader
-}
-
-func NewOpaqueReader(r io.Reader) *OpaqueReader {
- return &OpaqueReader{r: r}
-}
-
-// Read the next OpaquePacket.
-func (or *OpaqueReader) Next() (op *OpaquePacket, err error) {
- tag, _, contents, err := readHeader(or.r)
- if err != nil {
- return
- }
- op = &OpaquePacket{Tag: uint8(tag), Reason: err}
- err = op.parse(contents)
- if err != nil {
- consumeAll(contents)
- }
- return
-}
-
-// OpaqueSubpacket represents an unparsed OpenPGP subpacket,
-// as found in signature and user attribute packets.
-type OpaqueSubpacket struct {
- SubType uint8
- Contents []byte
-}
-
-// OpaqueSubpackets extracts opaque, unparsed OpenPGP subpackets from
-// their byte representation.
-func OpaqueSubpackets(contents []byte) (result []*OpaqueSubpacket, err error) {
- var (
- subHeaderLen int
- subPacket *OpaqueSubpacket
- )
- for len(contents) > 0 {
- subHeaderLen, subPacket, err = nextSubpacket(contents)
- if err != nil {
- break
- }
- result = append(result, subPacket)
- contents = contents[subHeaderLen+len(subPacket.Contents):]
- }
- return
-}
-
-func nextSubpacket(contents []byte) (subHeaderLen int, subPacket *OpaqueSubpacket, err error) {
- // RFC 4880, section 5.2.3.1
- var subLen uint32
- if len(contents) < 1 {
- goto Truncated
- }
- subPacket = &OpaqueSubpacket{}
- switch {
- case contents[0] < 192:
- subHeaderLen = 2 // 1 length byte, 1 subtype byte
- if len(contents) < subHeaderLen {
- goto Truncated
- }
- subLen = uint32(contents[0])
- contents = contents[1:]
- case contents[0] < 255:
- subHeaderLen = 3 // 2 length bytes, 1 subtype
- if len(contents) < subHeaderLen {
- goto Truncated
- }
- subLen = uint32(contents[0]-192)<<8 + uint32(contents[1]) + 192
- contents = contents[2:]
- default:
- subHeaderLen = 6 // 5 length bytes, 1 subtype
- if len(contents) < subHeaderLen {
- goto Truncated
- }
- subLen = uint32(contents[1])<<24 |
- uint32(contents[2])<<16 |
- uint32(contents[3])<<8 |
- uint32(contents[4])
- contents = contents[5:]
- }
- if subLen > uint32(len(contents)) || subLen == 0 {
- goto Truncated
- }
- subPacket.SubType = contents[0]
- subPacket.Contents = contents[1:subLen]
- return
-Truncated:
- err = errors.StructuralError("subpacket truncated")
- return
-}
-
-func (osp *OpaqueSubpacket) Serialize(w io.Writer) (err error) {
- buf := make([]byte, 6)
- n := serializeSubpacketLength(buf, len(osp.Contents)+1)
- buf[n] = osp.SubType
- if _, err = w.Write(buf[:n+1]); err != nil {
- return
- }
- _, err = w.Write(osp.Contents)
- return
-}