plugins/vendor/golang.org/x/net/ipv4/payload_cmsg.go
dependabot[bot] 394ab0d149
build(deps): bump the golang group with 5 updates
Bumps the golang group with 5 updates:

| Package | From | To |
| --- | --- | --- |
| [github.com/Microsoft/hcsshim](https://github.com/Microsoft/hcsshim) | `0.11.4` | `0.12.0` |
| [github.com/alexflint/go-filemutex](https://github.com/alexflint/go-filemutex) | `1.2.0` | `1.3.0` |
| [github.com/onsi/ginkgo/v2](https://github.com/onsi/ginkgo) | `2.13.2` | `2.16.0` |
| [github.com/onsi/gomega](https://github.com/onsi/gomega) | `1.30.0` | `1.31.1` |
| [golang.org/x/sys](https://github.com/golang/sys) | `0.15.0` | `0.17.0` |


Updates `github.com/Microsoft/hcsshim` from 0.11.4 to 0.12.0
- [Release notes](https://github.com/Microsoft/hcsshim/releases)
- [Commits](https://github.com/Microsoft/hcsshim/compare/v0.11.4...v0.12.0)

Updates `github.com/alexflint/go-filemutex` from 1.2.0 to 1.3.0
- [Release notes](https://github.com/alexflint/go-filemutex/releases)
- [Commits](https://github.com/alexflint/go-filemutex/compare/v1.2.0...v1.3.0)

Updates `github.com/onsi/ginkgo/v2` from 2.13.2 to 2.16.0
- [Release notes](https://github.com/onsi/ginkgo/releases)
- [Changelog](https://github.com/onsi/ginkgo/blob/master/CHANGELOG.md)
- [Commits](https://github.com/onsi/ginkgo/compare/v2.13.2...v2.16.0)

Updates `github.com/onsi/gomega` from 1.30.0 to 1.31.1
- [Release notes](https://github.com/onsi/gomega/releases)
- [Changelog](https://github.com/onsi/gomega/blob/master/CHANGELOG.md)
- [Commits](https://github.com/onsi/gomega/compare/v1.30.0...v1.31.1)

Updates `golang.org/x/sys` from 0.15.0 to 0.17.0
- [Commits](https://github.com/golang/sys/compare/v0.15.0...v0.17.0)

---
updated-dependencies:
- dependency-name: github.com/Microsoft/hcsshim
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang
- dependency-name: github.com/alexflint/go-filemutex
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang
- dependency-name: github.com/onsi/ginkgo/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang
- dependency-name: github.com/onsi/gomega
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang
- dependency-name: golang.org/x/sys
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang
...

Signed-off-by: dependabot[bot] <support@github.com>
2024-03-11 15:54:46 +00:00

85 lines
2.8 KiB
Go

// 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.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
package ipv4
import (
"net"
"golang.org/x/net/internal/socket"
)
// ReadFrom reads a payload of the received IPv4 datagram, from the
// endpoint c, copying the payload into b. It returns the number of
// bytes copied into b, the control message cm and the source address
// src of the received datagram.
func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) {
if !c.ok() {
return 0, nil, nil, errInvalidConn
}
c.rawOpt.RLock()
m := socket.Message{
OOB: NewControlMessage(c.rawOpt.cflags),
}
c.rawOpt.RUnlock()
switch c.PacketConn.(type) {
case *net.UDPConn:
m.Buffers = [][]byte{b}
if err := c.RecvMsg(&m, 0); err != nil {
return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
}
case *net.IPConn:
h := make([]byte, HeaderLen)
m.Buffers = [][]byte{h, b}
if err := c.RecvMsg(&m, 0); err != nil {
return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
}
hdrlen := int(h[0]&0x0f) << 2
if hdrlen > len(h) {
d := hdrlen - len(h)
copy(b, b[d:])
m.N -= d
} else {
m.N -= hdrlen
}
default:
return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errInvalidConnType}
}
if m.NN > 0 {
if compatFreeBSD32 {
adjustFreeBSD32(&m)
}
cm = new(ControlMessage)
if err := cm.Parse(m.OOB[:m.NN]); err != nil {
return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err}
}
cm.Src = netAddrToIP4(m.Addr)
}
return m.N, cm, m.Addr, nil
}
// WriteTo writes a payload of the IPv4 datagram, to the destination
// address dst through the endpoint c, copying the payload from b. It
// returns the number of bytes written. The control message cm allows
// the datagram path and the outgoing interface to be specified.
// Currently only Darwin and Linux support this. The cm may be nil if
// control of the outgoing datagram is not required.
func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) {
if !c.ok() {
return 0, errInvalidConn
}
m := socket.Message{
Buffers: [][]byte{b},
OOB: cm.Marshal(),
Addr: dst,
}
err = c.SendMsg(&m, 0)
if err != nil {
err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Addr: opAddr(dst), Err: err}
}
return m.N, err
}