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/* $NetBSD: uuid.h,v 1.4 2021/12/19 11:38:04 riastradh Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Taylor R. Campbell.
*
* 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, this list of conditions and the following disclaimer.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* 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 ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _LINUX_UUID_H_
#define _LINUX_UUID_H_
typedef struct {
unsigned char guid_bytes[16];
} guid_t;
#define GUID_INIT(x, y, z, v0, v1, v2, v3, v4, v5, v6, v7) ((guid_t) \
{ \
.guid_bytes = { \
[0] = (x) & 0xff, \
[1] = ((x) >> 8) & 0xff, \
[2] = ((x) >> 16) & 0xff, \
[3] = ((x) >> 24) & 0xff, \
[4] = (y) & 0xff, \
[5] = ((y) >> 8) & 0xff, \
[6] = (z) & 0xff, \
[7] = ((z) >> 8) & 0xff, \
[8] = (v0), \
[9] = (v1), \
[10] = (v2), \
[11] = (v3), \
[12] = (v4), \
[13] = (v5), \
[14] = (v6), \
[15] = (v7), \
} \
})
#define UUID_STRING_LEN 36
static inline int
uuid_is_valid(const char uuid[static 36])
{
unsigned i;
for (i = 0; i < 36; i++) {
switch (i) {
case 8: /* xxxxxxxx[-]xxxx-xxxx-xxxx-xxxxxxxxxxxx */
case 12 + 1: /* xxxxxxxx-xxxx[-]xxxx-xxxx-xxxxxxxxxxxx */
case 16 + 2: /* xxxxxxxx-xxxx-xxxx[-]xxxx-xxxxxxxxxxxx */
case 20 + 3: /* xxxxxxxx-xxxx-xxxx-xxxx[-]xxxxxxxxxxxx */
if (uuid[i] == '-')
continue;
return 0;
default:
if ('0' <= uuid[i] && uuid[i] <= '9')
continue;
if ('a' <= uuid[i] && uuid[i] <= 'f')
continue;
if ('A' <= uuid[i] && uuid[i] <= 'F')
continue;
return 0;
}
}
return 1;
}
#endif /* _LINUX_UUID_H_ */
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