busybox/e2fsprogs/uuid/uuid.h

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/*
* Public include file for the UUID library
*
* Copyright (C) 1996, 1997, 1998 Theodore Ts'o.
*
* %Begin-Header%
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, and the entire permission notice in its entirety,
* including the disclaimer of warranties.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
* WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
* %End-Header%
*/
#ifndef _UUID_UUID_H
#define _UUID_UUID_H
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
typedef unsigned char uuid_t[16];
/* UUID Variant definitions */
#define UUID_VARIANT_NCS 0
#define UUID_VARIANT_DCE 1
#define UUID_VARIANT_MICROSOFT 2
#define UUID_VARIANT_OTHER 3
/* UUID Type definitions */
#define UUID_TYPE_DCE_TIME 1
#define UUID_TYPE_DCE_RANDOM 4
/* Allow UUID constants to be defined */
#ifdef __GNUC__
#define UUID_DEFINE(name,u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15) \
static const uuid_t name __attribute__ ((unused)) = {u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15}
#else
#define UUID_DEFINE(name,u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15) \
static const uuid_t name = {u0,u1,u2,u3,u4,u5,u6,u7,u8,u9,u10,u11,u12,u13,u14,u15}
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* clear.c */
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/*void uuid_clear(uuid_t uu);*/
#define uuid_clear(uu) memset(uu, 0, sizeof(uu))
/* compare.c */
int uuid_compare(const uuid_t uu1, const uuid_t uu2);
/* copy.c */
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/*void uuid_copy(uuid_t dst, const uuid_t src);*/
#define uuid_copy(dst,src) memcpy(dst, src, sizeof(dst))
/* gen_uuid.c */
void uuid_generate(uuid_t out);
void uuid_generate_random(uuid_t out);
void uuid_generate_time(uuid_t out);
/* isnull.c */
/*int uuid_is_null(const uuid_t uu);*/
#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)))
/* parse.c */
int uuid_parse(const char *in, uuid_t uu);
/* unparse.c */
void uuid_unparse(const uuid_t uu, char *out);
void uuid_unparse_lower(const uuid_t uu, char *out);
void uuid_unparse_upper(const uuid_t uu, char *out);
/* uuid_time.c */
time_t uuid_time(const uuid_t uu, struct timeval *ret_tv);
int uuid_type(const uuid_t uu);
int uuid_variant(const uuid_t uu);
#ifdef __cplusplus
}
#endif
#endif /* _UUID_UUID_H */