source3/lib/util_uuid.c

   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
   6  *
   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.
  11  *
  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.
  16  *
  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/>.
  19  */
  20
  21 #include "includes.h"
  22
  23 void smb_uuid_pack(const struct GUID uu, UUID_FLAT *ptr)
  24 {
  25         SIVAL(ptr->info, 0, uu.time_low);
  26         SSVAL(ptr->info, 4, uu.time_mid);
  27         SSVAL(ptr->info, 6, uu.time_hi_and_version);
  28         memcpy(ptr->info+8, uu.clock_seq, 2);
  29         memcpy(ptr->info+10, uu.node, 6);
  30 }
  31
  32 void smb_uuid_unpack(const UUID_FLAT in, struct GUID *uu)
  33 {
  34         uu->time_low = IVAL(in.info, 0);
  35         uu->time_mid = SVAL(in.info, 4);
  36         uu->time_hi_and_version = SVAL(in.info, 6);
  37         memcpy(uu->clock_seq, in.info+8, 2);
  38         memcpy(uu->node, in.info+10, 6);
  39 }
  40
  41 /*****************************************************************
  42  Return the binary string representation of a GUID.
  43  Caller must free.
  44 *****************************************************************/
  45
  46 char *guid_binstring(TALLOC_CTX *mem_ctx, const struct GUID *guid)
  47 {
  48         UUID_FLAT guid_flat;
  49
  50         smb_uuid_pack(*guid, &guid_flat);
  51
  52         return binary_string_rfc2254(mem_ctx, guid_flat.info, UUID_FLAT_SIZE);
  53 }