source: rtems/cpukit/libmisc/uuid/parse.c @ ebdeaf6

/*
 * 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%
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>

#include "uuidP.h"

int uuid_parse(const char *in, uuid_t uu)
{
        struct uuid     uuid;
        int             i;
        const char      *cp;
        char            buf[3];

        if (strlen(in) != 36)
                return -1;
        for (i=0, cp = in; i <= 36; i++,cp++) {
                if ((i == 8) || (i == 13) || (i == 18) ||
                    (i == 23)) {
                        if (*cp == '-')
                                continue;
                        else
                                return -1;
                }
                if (i== 36)
                        if (*cp == 0)
                                continue;
                if (!isxdigit((unsigned char)*cp))
                        return -1;
        }
        uuid.time_low = strtoul(in, NULL, 16);
        uuid.time_mid = strtoul(in+9, NULL, 16);
        uuid.time_hi_and_version = strtoul(in+14, NULL, 16);
        uuid.clock_seq = strtoul(in+19, NULL, 16);
        cp = in+24;
        buf[2] = 0;
        for (i=0; i < 6; i++) {
                buf[0] = *cp++;
                buf[1] = *cp++;
                uuid.node[i] = strtoul(buf, NULL, 16);
        }

        uuid_pack(&uuid, uu);
        return 0;
}