This patch imports the unmodified current version of NetBSD libc. The NetBSD includes are in /nbsd_include, while the libc code itself is split between lib/nbsd_libc and common/lib/libc.
101 lines
3.4 KiB
C
101 lines
3.4 KiB
C
/* $NetBSD: uuid_from_string.c,v 1.1 2004/09/13 21:44:54 thorpej Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2002 Marcel Moolenaar
|
|
* Copyright (c) 2002 Hiten Mahesh Pandya
|
|
* All rights reserved.
|
|
*
|
|
* 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 AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* $FreeBSD: src/lib/libc/uuid/uuid_from_string.c,v 1.2 2003/08/08 19:18:43 marcel Exp $
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
__RCSID("$NetBSD: uuid_from_string.c,v 1.1 2004/09/13 21:44:54 thorpej Exp $");
|
|
#endif
|
|
|
|
#include "namespace.h"
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <uuid.h>
|
|
|
|
/*
|
|
* uuid_from_string() - convert a string representation of an UUID into
|
|
* a binary representation.
|
|
* See also:
|
|
* http://www.opengroup.org/onlinepubs/009629399/uuid_from_string.htm
|
|
*
|
|
* NOTE: The sequence field is in big-endian, while the time fields are in
|
|
* native byte order.
|
|
*/
|
|
void
|
|
uuid_from_string(const char *s, uuid_t *u, uint32_t *status)
|
|
{
|
|
int n;
|
|
|
|
/* Short-circuit 2 special cases: NULL pointer and empty string. */
|
|
if (s == NULL || *s == '\0') {
|
|
uuid_create_nil(u, status);
|
|
return;
|
|
}
|
|
|
|
/* Assume the worst. */
|
|
if (status != NULL)
|
|
*status = uuid_s_invalid_string_uuid;
|
|
|
|
/* The UUID string representation has a fixed length. */
|
|
if (strlen(s) != 36)
|
|
return;
|
|
|
|
/*
|
|
* We only work with "new" UUIDs. New UUIDs have the form:
|
|
* 01234567-89ab-cdef-0123-456789abcdef
|
|
* The so called "old" UUIDs, which we don't support, have the form:
|
|
* 0123456789ab.cd.ef.01.23.45.67.89.ab
|
|
*/
|
|
if (s[8] != '-')
|
|
return;
|
|
|
|
n = sscanf(s,
|
|
"%8x-%4hx-%4hx-%2hhx%2hhx-%2hhx%2hhx%2hhx%2hhx%2hhx%2hhx",
|
|
&u->time_low, &u->time_mid, &u->time_hi_and_version,
|
|
&u->clock_seq_hi_and_reserved, &u->clock_seq_low, &u->node[0],
|
|
&u->node[1], &u->node[2], &u->node[3], &u->node[4], &u->node[5]);
|
|
|
|
/* Make sure we have all conversions. */
|
|
if (n != 11)
|
|
return;
|
|
|
|
/* We have a successful scan. Check semantics... */
|
|
n = u->clock_seq_hi_and_reserved;
|
|
if ((n & 0x80) != 0x00 && /* variant 0? */
|
|
(n & 0xc0) != 0x80 && /* variant 1? */
|
|
(n & 0xe0) != 0xc0) { /* variant 2? */
|
|
if (status != NULL)
|
|
*status = uuid_s_bad_version;
|
|
} else {
|
|
if (status != NULL)
|
|
*status = uuid_s_ok;
|
|
}
|
|
}
|