libuuid/src/predefined.c

   1 /*
   2  * predefined.c --- well-known UUIDs from the RFC-4122 namespace
   3  *
   4  * Copyright (C) 2017 Philip Prindeville
   5  *
   6  * %Begin-Header%
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, and the entire permission notice in its entirety,
  12  *    including the disclaimer of warranties.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. The name of the author may not be used to endorse or promote
  17  *    products derived from this software without specific prior
  18  *    written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  21  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
  23  * WHICH ARE HEREBY DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
  26  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  27  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  30  * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
  31  * DAMAGE.
  32  * %End-Header%
  33  */
  34
  35 #include <string.h>
  36 #include "uuid.h"
  37
  38 /*
  39  * These are time-based UUIDs that are well-known in that they've
  40  * been canonized as part of RFC-4122, Appendex C.  They are to
  41  * be used as the namespace (ns) argument to the uuid_generate_md5()
  42  * and uuid_generate_sha1() functions.
  43  *
  44  * See Section 4.3 for the particulars of how namespace UUIDs
  45  * are combined with seed values to generate new UUIDs.
  46  */
  47
  48 UUID_DEFINE(NameSpace_DNS,
  49         0x6b, 0xa7, 0xb8, 0x10, 0x9d, 0xad, 0x11, 0xd1,
  50         0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8);
  51
  52 UUID_DEFINE(NameSpace_URL,
  53         0x6b, 0xa7, 0xb8, 0x11, 0x9d, 0xad, 0x11, 0xd1,
  54         0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8);
  55
  56 UUID_DEFINE(NameSpace_OID,
  57         0x6b, 0xa7, 0xb8, 0x12, 0x9d, 0xad, 0x11, 0xd1,
  58         0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8);
  59
  60 UUID_DEFINE(NameSpace_X500,
  61         0x6b, 0xa7, 0xb8, 0x14, 0x9d, 0xad, 0x11, 0xd1,
  62         0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8);
  63
  64 const uuid_t *uuid_get_template(const char *alias)
  65 {
  66         if (!alias || !*alias)
  67                 return NULL;
  68
  69         if (!strcmp(alias, "dns"))
  70                 return &NameSpace_DNS;
  71
  72         if (!strcmp(alias, "url"))
  73                 return &NameSpace_URL;
  74
  75         if (!strcmp(alias, "oid"))
  76                 return &NameSpace_OID;
  77
  78         if (!strcmp(alias, "x500") || !strcmp(alias, "x.500"))
  79                 return &NameSpace_X500;
  80
  81         return NULL;
  82 }
  83