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/*
* parse.c --- UUID parsing
*
* Copyright (C) 1996, 1997 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%
*/
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include "c.h"
#include "uuidP.h"
int uuid_parse(const char *in, uuid_t uu)
{
size_t len = strlen(in);
if (len != 36)
return -1;
return uuid_parse_range(in, in + len, uu);
}
int uuid_parse_range(const char *in_start, const char *in_end, uuid_t uu)
{
struct uuid uuid;
int i;
const char *cp;
char buf[3];
if ((in_end - in_start) != 36)
return -1;
for (i=0, cp = in_start; i < 36; i++,cp++) {
if ((i == 8) || (i == 13) || (i == 18) ||
(i == 23)) {
if (*cp == '-')
continue;
return -1;
}
if (!isxdigit(*cp))
return -1;
}
errno = 0;
uuid.time_low = strtoul(in_start, NULL, 16);
if (!errno)
uuid.time_mid = strtoul(in_start+9, NULL, 16);
if (!errno)
uuid.time_hi_and_version = strtoul(in_start+14, NULL, 16);
if (!errno)
uuid.clock_seq = strtoul(in_start+19, NULL, 16);
if (errno)
return -1;
cp = in_start+24;
buf[2] = 0;
for (i=0; i < 6; i++) {
buf[0] = *cp++;
buf[1] = *cp++;
errno = 0;
uuid.node[i] = strtoul(buf, NULL, 16);
if (errno)
return -1;
}
uuid_pack(&uuid, uu);
return 0;
}
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