1 /*
2 * parse.c --- UUID parsing
3 *
4 * Copyright (C) 1996, 1997 Theodore Ts'o.
5 *
6 * %Begin-Header%
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, and the entire permission notice in its entirety,
12 * including the disclaimer of warranties.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote
17 * products derived from this software without specific prior
18 * written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
21 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
23 * WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
27 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
30 * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
31 * DAMAGE.
32 * %End-Header%
33 */
34
35 #include <stdlib.h>
36 #include <stdio.h>
37 #include <ctype.h>
38 #include <string.h>
39
40 #include "uuidP.h"
41
uuid_parse(const char * in,uuid_t uu)42 int uuid_parse(const char *in, uuid_t uu)
43 {
44 struct uuid uuid;
45 int i;
46 const char *cp;
47 char buf[3];
48
49 if (strlen(in) != 36)
50 return -1;
51 for (i=0, cp = in; i <= 36; i++,cp++) {
52 if ((i == 8) || (i == 13) || (i == 18) ||
53 (i == 23)) {
54 if (*cp == '-')
55 continue;
56 else
57 return -1;
58 }
59 if (i== 36)
60 if (*cp == 0)
61 continue;
62 if (!isxdigit(*cp))
63 return -1;
64 }
65 uuid.time_low = strtoul(in, NULL, 16);
66 uuid.time_mid = strtoul(in+9, NULL, 16);
67 uuid.time_hi_and_version = strtoul(in+14, NULL, 16);
68 uuid.clock_seq = strtoul(in+19, NULL, 16);
69 cp = in+24;
70 buf[2] = 0;
71 for (i=0; i < 6; i++) {
72 buf[0] = *cp++;
73 buf[1] = *cp++;
74 uuid.node[i] = strtoul(buf, NULL, 16);
75 }
76
77 uuid_pack(&uuid, uu);
78 return 0;
79 }
80