release/src/router/busybox/e2fsprogs/uuid/uuid.h

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * Public include file for the UUID library
   4  *
   5  * Copyright (C) 1996, 1997, 1998 Theodore Ts'o.
   6  *
   7  * %Begin-Header%
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, and the entire permission notice in its entirety,
  13  *    including the disclaimer of warranties.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. The name of the author may not be used to endorse or promote
  18  *    products derived from this software without specific prior
  19  *    written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  22  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
  24  * WHICH ARE HEREBY DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
  27  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  28  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  29  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  31  * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
  32  * DAMAGE.
  33  * %End-Header%
  34  */
  35 #ifndef UUID_UUID_H
  36 #define UUID_UUID_H 1
  37
  38 #include <sys/types.h>
  39 #include <time.h>
  40
  41 typedef unsigned char uuid_t[16];
  42
  43 /* UUID Variant definitions */
  44 #define UUID_VARIANT_NCS        0
  45 #define UUID_VARIANT_DCE        1
  46 #define UUID_VARIANT_MICROSOFT  2
  47 #define UUID_VARIANT_OTHER      3
  48
  49 /* UUID Type definitions */
  50 #define UUID_TYPE_DCE_TIME   1
  51 #define UUID_TYPE_DCE_RANDOM 4
  52
  53 /* Allow UUID constants to be defined */
  54 #ifdef __GNUC__
  55 #define UUID_DEFINE(name,u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15) \
  56         static const uuid_t name UNUSED_PARAM = {u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15}
  57 #else
  58 #define UUID_DEFINE(name,u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15) \
  59         static const uuid_t name = {u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15}
  60 #endif
  61
  62 #ifdef __cplusplus
  63 extern "C" {
  64 #endif
  65
  66 /* clear.c */
  67 /*void uuid_clear(uuid_t uu);*/
  68 #define uuid_clear(uu) memset(uu, 0, sizeof(uu))
  69
  70 /* compare.c */
  71 int uuid_compare(const uuid_t uu1, const uuid_t uu2);
  72
  73 /* copy.c */
  74 /*void uuid_copy(uuid_t dst, const uuid_t src);*/
  75 #define uuid_copy(dst,src) memcpy(dst, src, sizeof(dst))
  76
  77 /* gen_uuid.c */
  78 void uuid_generate(uuid_t out);
  79 void uuid_generate_random(uuid_t out);
  80 void uuid_generate_time(uuid_t out);
  81
  82 /* isnull.c */
  83 /*int uuid_is_null(const uuid_t uu);*/
  84 #define uuid_is_null(uu) (!memcmp(uu, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", sizeof(uu)))
  85
  86 /* parse.c */
  87 int uuid_parse(const char *in, uuid_t uu);
  88
  89 /* unparse.c */
  90 void uuid_unparse(const uuid_t uu, char *out);
  91 void uuid_unparse_lower(const uuid_t uu, char *out);
  92 void uuid_unparse_upper(const uuid_t uu, char *out);
  93
  94 /* uuid_time.c */
  95 time_t uuid_time(const uuid_t uu, struct timeval *ret_tv);
  96 int uuid_type(const uuid_t uu);
  97 int uuid_variant(const uuid_t uu);
  98
  99 #ifdef __cplusplus
 100 }
 101 #endif
 102
 103 #endif /* _UUID_UUID_H */