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| author | Rutger Broekhoff | 2023-12-29 21:31:53 +0100 |
|---|---|---|
| committer | Rutger Broekhoff | 2023-12-29 21:31:53 +0100 |
| commit | 404aeae4545d2426c089a5f8d5e82dae56f5212b (patch) | |
| tree | 2d84e00af272b39fc04f3795ae06bc48970e57b5 /vendor/github.com/google/uuid/dce.go | |
| parent | 209d8b0187ed025dec9ac149ebcced3462877bff (diff) | |
| download | gitolfs3-404aeae4545d2426c089a5f8d5e82dae56f5212b.tar.gz gitolfs3-404aeae4545d2426c089a5f8d5e82dae56f5212b.zip | |
Make Nix builds work
Diffstat (limited to 'vendor/github.com/google/uuid/dce.go')
| -rw-r--r-- | vendor/github.com/google/uuid/dce.go | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/vendor/github.com/google/uuid/dce.go b/vendor/github.com/google/uuid/dce.go new file mode 100644 index 0000000..fa820b9 --- /dev/null +++ b/vendor/github.com/google/uuid/dce.go | |||
| @@ -0,0 +1,80 @@ | |||
| 1 | // Copyright 2016 Google Inc. All rights reserved. | ||
| 2 | // Use of this source code is governed by a BSD-style | ||
| 3 | // license that can be found in the LICENSE file. | ||
| 4 | |||
| 5 | package uuid | ||
| 6 | |||
| 7 | import ( | ||
| 8 | "encoding/binary" | ||
| 9 | "fmt" | ||
| 10 | "os" | ||
| 11 | ) | ||
| 12 | |||
| 13 | // A Domain represents a Version 2 domain | ||
| 14 | type Domain byte | ||
| 15 | |||
| 16 | // Domain constants for DCE Security (Version 2) UUIDs. | ||
| 17 | const ( | ||
| 18 | Person = Domain(0) | ||
| 19 | Group = Domain(1) | ||
| 20 | Org = Domain(2) | ||
| 21 | ) | ||
| 22 | |||
| 23 | // NewDCESecurity returns a DCE Security (Version 2) UUID. | ||
| 24 | // | ||
| 25 | // The domain should be one of Person, Group or Org. | ||
| 26 | // On a POSIX system the id should be the users UID for the Person | ||
| 27 | // domain and the users GID for the Group. The meaning of id for | ||
| 28 | // the domain Org or on non-POSIX systems is site defined. | ||
| 29 | // | ||
| 30 | // For a given domain/id pair the same token may be returned for up to | ||
| 31 | // 7 minutes and 10 seconds. | ||
| 32 | func NewDCESecurity(domain Domain, id uint32) (UUID, error) { | ||
| 33 | uuid, err := NewUUID() | ||
| 34 | if err == nil { | ||
| 35 | uuid[6] = (uuid[6] & 0x0f) | 0x20 // Version 2 | ||
| 36 | uuid[9] = byte(domain) | ||
| 37 | binary.BigEndian.PutUint32(uuid[0:], id) | ||
| 38 | } | ||
| 39 | return uuid, err | ||
| 40 | } | ||
| 41 | |||
| 42 | // NewDCEPerson returns a DCE Security (Version 2) UUID in the person | ||
| 43 | // domain with the id returned by os.Getuid. | ||
| 44 | // | ||
| 45 | // NewDCESecurity(Person, uint32(os.Getuid())) | ||
| 46 | func NewDCEPerson() (UUID, error) { | ||
| 47 | return NewDCESecurity(Person, uint32(os.Getuid())) | ||
| 48 | } | ||
| 49 | |||
| 50 | // NewDCEGroup returns a DCE Security (Version 2) UUID in the group | ||
| 51 | // domain with the id returned by os.Getgid. | ||
| 52 | // | ||
| 53 | // NewDCESecurity(Group, uint32(os.Getgid())) | ||
| 54 | func NewDCEGroup() (UUID, error) { | ||
| 55 | return NewDCESecurity(Group, uint32(os.Getgid())) | ||
| 56 | } | ||
| 57 | |||
| 58 | // Domain returns the domain for a Version 2 UUID. Domains are only defined | ||
| 59 | // for Version 2 UUIDs. | ||
| 60 | func (uuid UUID) Domain() Domain { | ||
| 61 | return Domain(uuid[9]) | ||
| 62 | } | ||
| 63 | |||
| 64 | // ID returns the id for a Version 2 UUID. IDs are only defined for Version 2 | ||
| 65 | // UUIDs. | ||
| 66 | func (uuid UUID) ID() uint32 { | ||
| 67 | return binary.BigEndian.Uint32(uuid[0:4]) | ||
| 68 | } | ||
| 69 | |||
| 70 | func (d Domain) String() string { | ||
| 71 | switch d { | ||
| 72 | case Person: | ||
| 73 | return "Person" | ||
| 74 | case Group: | ||
| 75 | return "Group" | ||
| 76 | case Org: | ||
| 77 | return "Org" | ||
| 78 | } | ||
| 79 | return fmt.Sprintf("Domain%d", int(d)) | ||
| 80 | } | ||