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mondash/vendor/golang.org/x/sys/unix/sockcmsg_linux.go
Knut Ahlers f3c31476b4
Major: Rework frontend, API and improve code quality (#5)
* Update dependencies
* Improve code quality
* Apply linter advices
* Add gzip compression to all requests
* Rework frontend
* Apply bootswatch theme
* Hide historic details when not requested
* Remove debugging header
* Apply auto-migration of meta fields
* Fix broken "last update" time
* Pre-sort metrics for frontend / API
* Add tooltip with absolute time
* Some design fixes
* Add tooltip with absolute date to last ok
* Implement filters
* Apply eslint --fix
* Remove unused var
* Remove remains of old template engine
* Update baked in assets
* Update Dockerfile for new version

Signed-off-by: Knut Ahlers <knut@ahlers.me>
2019-05-25 00:03:06 +02:00

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1 KiB
Go

// Copyright 2011 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.
// Socket control messages
package unix
import "unsafe"
// UnixCredentials encodes credentials into a socket control message
// for sending to another process. This can be used for
// authentication.
func UnixCredentials(ucred *Ucred) []byte {
b := make([]byte, CmsgSpace(SizeofUcred))
h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
h.Level = SOL_SOCKET
h.Type = SCM_CREDENTIALS
h.SetLen(CmsgLen(SizeofUcred))
*((*Ucred)(cmsgData(h))) = *ucred
return b
}
// ParseUnixCredentials decodes a socket control message that contains
// credentials in a Ucred structure. To receive such a message, the
// SO_PASSCRED option must be enabled on the socket.
func ParseUnixCredentials(m *SocketControlMessage) (*Ucred, error) {
if m.Header.Level != SOL_SOCKET {
return nil, EINVAL
}
if m.Header.Type != SCM_CREDENTIALS {
return nil, EINVAL
}
ucred := *(*Ucred)(unsafe.Pointer(&m.Data[0]))
return &ucred, nil
}