xs/vendor/golang.org/x/net/ipv4/control_unix.go
Russ Magee f5be3578a8 1/3 Updated Makefile to allow VENDOR flag (adds -vendor to version string)
2/3 Added vendor/ dir to lock down dependent pkg versions.
The author of git.schwanenlied.me/yawning/{chacha20,newhope,kyber}.git has copied
their repos to gitlab.com/yawning/ but some imports of chacha20 from newhope still
inconsistently refer to git.schwanenlied.me/, breaking build.
Licenses for chacha20 also changed from CC0 to AGPL, which may or may not be an
issue. Until the two aforementioned issues are resolved, locking to last-good
versions is probably the best way forward for now.

To build with vendored deps, use make VENDOR=1 clean all

3/3 Moved body of CI push script into bacillus/
2020-01-29 17:23:44 -08:00

73 lines
1.7 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.
// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
package ipv4
import (
"unsafe"
"golang.org/x/net/internal/iana"
"golang.org/x/net/internal/socket"
)
func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error {
opt.Lock()
defer opt.Unlock()
if so, ok := sockOpts[ssoReceiveTTL]; ok && cf&FlagTTL != 0 {
if err := so.SetInt(c, boolint(on)); err != nil {
return err
}
if on {
opt.set(FlagTTL)
} else {
opt.clear(FlagTTL)
}
}
if so, ok := sockOpts[ssoPacketInfo]; ok {
if cf&(FlagSrc|FlagDst|FlagInterface) != 0 {
if err := so.SetInt(c, boolint(on)); err != nil {
return err
}
if on {
opt.set(cf & (FlagSrc | FlagDst | FlagInterface))
} else {
opt.clear(cf & (FlagSrc | FlagDst | FlagInterface))
}
}
} else {
if so, ok := sockOpts[ssoReceiveDst]; ok && cf&FlagDst != 0 {
if err := so.SetInt(c, boolint(on)); err != nil {
return err
}
if on {
opt.set(FlagDst)
} else {
opt.clear(FlagDst)
}
}
if so, ok := sockOpts[ssoReceiveInterface]; ok && cf&FlagInterface != 0 {
if err := so.SetInt(c, boolint(on)); err != nil {
return err
}
if on {
opt.set(FlagInterface)
} else {
opt.clear(FlagInterface)
}
}
}
return nil
}
func marshalTTL(b []byte, cm *ControlMessage) []byte {
m := socket.ControlMessage(b)
m.MarshalHeader(iana.ProtocolIP, sysIP_RECVTTL, 1)
return m.Next(1)
}
func parseTTL(cm *ControlMessage, b []byte) {
cm.TTL = int(*(*byte)(unsafe.Pointer(&b[:1][0])))
}