diff options
author | Wim <wim@42.be> | 2016-04-10 23:39:38 +0200 |
---|---|---|
committer | Wim <wim@42.be> | 2016-04-10 23:39:38 +0200 |
commit | de4c7804101a47a01d0c9b88ea34d2b153e2b6b9 (patch) | |
tree | fa379bc2e706951a913e0c7009d9906e42363655 /vendor/github.com/pborman/uuid/dce.go | |
parent | 6b18257185b1830bd2eff83fae30bdd2055f78b0 (diff) | |
download | matterbridge-msglm-de4c7804101a47a01d0c9b88ea34d2b153e2b6b9.tar.gz matterbridge-msglm-de4c7804101a47a01d0c9b88ea34d2b153e2b6b9.tar.bz2 matterbridge-msglm-de4c7804101a47a01d0c9b88ea34d2b153e2b6b9.zip |
Vendor libs
Diffstat (limited to 'vendor/github.com/pborman/uuid/dce.go')
-rw-r--r-- | vendor/github.com/pborman/uuid/dce.go | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/vendor/github.com/pborman/uuid/dce.go b/vendor/github.com/pborman/uuid/dce.go new file mode 100644 index 00000000..50a0f2d0 --- /dev/null +++ b/vendor/github.com/pborman/uuid/dce.go @@ -0,0 +1,84 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package uuid + +import ( + "encoding/binary" + "fmt" + "os" +) + +// A Domain represents a Version 2 domain +type Domain byte + +// Domain constants for DCE Security (Version 2) UUIDs. +const ( + Person = Domain(0) + Group = Domain(1) + Org = Domain(2) +) + +// NewDCESecurity returns a DCE Security (Version 2) UUID. +// +// The domain should be one of Person, Group or Org. +// On a POSIX system the id should be the users UID for the Person +// domain and the users GID for the Group. The meaning of id for +// the domain Org or on non-POSIX systems is site defined. +// +// For a given domain/id pair the same token may be returned for up to +// 7 minutes and 10 seconds. +func NewDCESecurity(domain Domain, id uint32) UUID { + uuid := NewUUID() + if uuid != nil { + uuid[6] = (uuid[6] & 0x0f) | 0x20 // Version 2 + uuid[9] = byte(domain) + binary.BigEndian.PutUint32(uuid[0:], id) + } + return uuid +} + +// NewDCEPerson returns a DCE Security (Version 2) UUID in the person +// domain with the id returned by os.Getuid. +// +// NewDCEPerson(Person, uint32(os.Getuid())) +func NewDCEPerson() UUID { + return NewDCESecurity(Person, uint32(os.Getuid())) +} + +// NewDCEGroup returns a DCE Security (Version 2) UUID in the group +// domain with the id returned by os.Getgid. +// +// NewDCEGroup(Group, uint32(os.Getgid())) +func NewDCEGroup() UUID { + return NewDCESecurity(Group, uint32(os.Getgid())) +} + +// Domain returns the domain for a Version 2 UUID or false. +func (uuid UUID) Domain() (Domain, bool) { + if v, _ := uuid.Version(); v != 2 { + return 0, false + } + return Domain(uuid[9]), true +} + +// Id returns the id for a Version 2 UUID or false. +func (uuid UUID) Id() (uint32, bool) { + if v, _ := uuid.Version(); v != 2 { + return 0, false + } + return binary.BigEndian.Uint32(uuid[0:4]), true +} + +func (d Domain) String() string { + switch d { + case Person: + return "Person" + case Group: + return "Group" + case Org: + return "Org" + } + return fmt.Sprintf("Domain%d", int(d)) +} |