s3-loadparm: Fix resume command typo for "printing = vlp".
[Samba.git] / source / lib / util_uuid.c
blob36c04e9b8492868443df6490564a9699655c9416
1 /*
2 * Unix SMB/CIFS implementation.
3 * UUID server routines
4 * Copyright (C) Theodore Ts'o 1996, 1997,
5 * Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2002, 2003
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
21 #include "includes.h"
24 * Offset between 15-Oct-1582 and 1-Jan-70
26 #define TIME_OFFSET_HIGH 0x01B21DD2
27 #define TIME_OFFSET_LOW 0x13814000
29 void smb_uuid_pack(const struct GUID uu, UUID_FLAT *ptr)
31 SIVAL(ptr->info, 0, uu.time_low);
32 SSVAL(ptr->info, 4, uu.time_mid);
33 SSVAL(ptr->info, 6, uu.time_hi_and_version);
34 memcpy(ptr->info+8, uu.clock_seq, 2);
35 memcpy(ptr->info+10, uu.node, 6);
38 void smb_uuid_unpack(const UUID_FLAT in, struct GUID *uu)
40 uu->time_low = IVAL(in.info, 0);
41 uu->time_mid = SVAL(in.info, 4);
42 uu->time_hi_and_version = SVAL(in.info, 6);
43 memcpy(uu->clock_seq, in.info+8, 2);
44 memcpy(uu->node, in.info+10, 6);
47 void smb_uuid_generate_random(struct GUID *uu)
49 UUID_FLAT tmp;
51 generate_random_buffer(tmp.info, sizeof(tmp.info));
52 smb_uuid_unpack(tmp, uu);
54 uu->clock_seq[0] = (uu->clock_seq[0] & 0x3F) | 0x80;
55 uu->time_hi_and_version = (uu->time_hi_and_version & 0x0FFF) | 0x4000;
58 const char *smb_uuid_string(TALLOC_CTX *mem_ctx, const struct GUID uu)
60 char *result;
62 result = talloc_asprintf(
63 mem_ctx,
64 "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
65 uu.time_low, uu.time_mid, uu.time_hi_and_version,
66 uu.clock_seq[0], uu.clock_seq[1],
67 uu.node[0], uu.node[1], uu.node[2],
68 uu.node[3], uu.node[4], uu.node[5]);
70 SMB_ASSERT(result != NULL);
71 return result;
74 bool smb_string_to_uuid(const char *in, struct GUID* uu)
76 bool ret = False;
77 const char *ptr = in;
78 char *end = (char *)in;
79 int i;
80 unsigned v1, v2;
82 if (!in || !uu) goto out;
84 uu->time_low = strtoul(ptr, &end, 16);
85 if ((end - ptr) != 8 || *end != '-') goto out;
86 ptr = (end + 1);
88 uu->time_mid = strtoul(ptr, &end, 16);
89 if ((end - ptr) != 4 || *end != '-') goto out;
90 ptr = (end + 1);
92 uu->time_hi_and_version = strtoul(ptr, &end, 16);
93 if ((end - ptr) != 4 || *end != '-') goto out;
94 ptr = (end + 1);
96 if (sscanf(ptr, "%02x%02x", &v1, &v2) != 2) {
97 goto out;
99 uu->clock_seq[0] = v1;
100 uu->clock_seq[1] = v2;
101 ptr += 4;
103 if (*ptr != '-') goto out;
104 ptr++;
106 for (i = 0; i < 6; i++) {
107 if (sscanf(ptr, "%02x", &v1) != 1) {
108 goto out;
110 uu->node[i] = v1;
111 ptr += 2;
114 ret = True;
115 out:
116 return ret;
119 /*****************************************************************
120 Return the binary string representation of a GUID.
121 Caller must free.
122 *****************************************************************/
124 char *guid_binstring(const struct GUID *guid)
126 UUID_FLAT guid_flat;
128 smb_uuid_pack(*guid, &guid_flat);
130 return binary_string_rfc2254((char *)guid_flat.info, UUID_FLAT_SIZE);