diff options
author | 2017-05-04 11:09:03 +0200 | |
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committer | 2017-05-04 11:12:35 +0200 | |
commit | a101d966133a70b8a76526be25070436d14fcf9f (patch) | |
tree | 75e2dbf20de615e58252b780b2ba5baae8fdcf82 /vendor/golang.org/x/sys/unix/sockcmsg_linux.go | |
parent | a968ead74525125dff9ae90b1c9a9102e4327900 (diff) |
initial commit
Signed-off-by: Rastislav Szabo <raszabo@cisco.com>
Diffstat (limited to 'vendor/golang.org/x/sys/unix/sockcmsg_linux.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/sockcmsg_linux.go | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/sockcmsg_linux.go b/vendor/golang.org/x/sys/unix/sockcmsg_linux.go new file mode 100644 index 0000000..d9ff473 --- /dev/null +++ b/vendor/golang.org/x/sys/unix/sockcmsg_linux.go @@ -0,0 +1,36 @@ +// 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 +} |