mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
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a293b2bf94
Travis seems to be having issues pulling deps, so we'll have to check in the vendor directory and prevent the makefile from trying to regenerate it normally.
53 lines
1.6 KiB
Go
53 lines
1.6 KiB
Go
// Copyright 2011 Google Inc. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package uuid
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import (
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"crypto/md5"
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"crypto/sha1"
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"hash"
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)
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// Well known Name Space IDs and UUIDs
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var (
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NameSpace_DNS = Parse("6ba7b810-9dad-11d1-80b4-00c04fd430c8")
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NameSpace_URL = Parse("6ba7b811-9dad-11d1-80b4-00c04fd430c8")
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NameSpace_OID = Parse("6ba7b812-9dad-11d1-80b4-00c04fd430c8")
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NameSpace_X500 = Parse("6ba7b814-9dad-11d1-80b4-00c04fd430c8")
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NIL = Parse("00000000-0000-0000-0000-000000000000")
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)
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// NewHash returns a new UUID derived from the hash of space concatenated with
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// data generated by h. The hash should be at least 16 byte in length. The
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// first 16 bytes of the hash are used to form the UUID. The version of the
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// UUID will be the lower 4 bits of version. NewHash is used to implement
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// NewMD5 and NewSHA1.
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func NewHash(h hash.Hash, space UUID, data []byte, version int) UUID {
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h.Reset()
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h.Write(space)
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h.Write([]byte(data))
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s := h.Sum(nil)
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uuid := make([]byte, 16)
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copy(uuid, s)
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uuid[6] = (uuid[6] & 0x0f) | uint8((version&0xf)<<4)
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uuid[8] = (uuid[8] & 0x3f) | 0x80 // RFC 4122 variant
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return uuid
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}
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// NewMD5 returns a new MD5 (Version 3) UUID based on the
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// supplied name space and data.
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//
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// NewHash(md5.New(), space, data, 3)
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func NewMD5(space UUID, data []byte) UUID {
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return NewHash(md5.New(), space, data, 3)
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}
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// NewSHA1 returns a new SHA1 (Version 5) UUID based on the
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// supplied name space and data.
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//
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// NewHash(sha1.New(), space, data, 5)
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func NewSHA1(space UUID, data []byte) UUID {
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return NewHash(sha1.New(), space, data, 5)
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}
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