nsswitch/libwbclient/wbc_guid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind client API
   5
   6    Copyright (C) Gerald (Jerry) Carter 2007
   7
   8
   9    This library is free software; you can redistribute it and/or
  10    modify it under the terms of the GNU Lesser General Public
  11    License as published by the Free Software Foundation; either
  12    version 3 of the License, or (at your option) any later version.
  13
  14    This library is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17    Library General Public License for more details.
  18
  19    You should have received a copy of the GNU Lesser General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 /* Required Headers */
  24
  25 #include "libwbclient.h"
  26
  27 /* Convert a binary GUID to a character string */
  28 wbcErr wbcGuidToString(const struct wbcGuid *guid,
  29                        char **guid_string)
  30 {
  31         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
  32
  33         if (!guid) {
  34                 wbc_status = WBC_ERR_INVALID_PARAM;
  35                 BAIL_ON_WBC_ERROR(wbc_status);
  36         }
  37
  38         *guid_string = talloc_asprintf(NULL,
  39                                        "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
  40                                        guid->time_low, guid->time_mid,
  41                                        guid->time_hi_and_version,
  42                                        guid->clock_seq[0],
  43                                        guid->clock_seq[1],
  44                                        guid->node[0], guid->node[1],
  45                                        guid->node[2], guid->node[3],
  46                                        guid->node[4], guid->node[5]);
  47         BAIL_ON_PTR_ERROR((*guid_string), wbc_status);
  48
  49         wbc_status = WBC_ERR_SUCCESS;
  50
  51 done:
  52         return wbc_status;
  53 }
  54
  55 /* @brief Convert a character string to a binary GUID */
  56 wbcErr wbcStringToGuid(const char *str,
  57                        struct wbcGuid *guid)
  58 {
  59         uint32_t time_low;
  60         uint32_t time_mid, time_hi_and_version;
  61         uint32_t clock_seq[2];
  62         uint32_t node[6];
  63         int i;
  64         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
  65
  66         if (!guid) {
  67                 wbc_status = WBC_ERR_INVALID_PARAM;
  68                 BAIL_ON_WBC_ERROR(wbc_status);
  69         }
  70
  71         if (!str) {
  72                 wbc_status = WBC_ERR_INVALID_PARAM;
  73                 BAIL_ON_WBC_ERROR(wbc_status);
  74         }
  75
  76         if (11 == sscanf(str, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
  77                          &time_low, &time_mid, &time_hi_and_version,
  78                          &clock_seq[0], &clock_seq[1],
  79                          &node[0], &node[1], &node[2], &node[3], &node[4], &node[5])) {
  80                 wbc_status = WBC_ERR_SUCCESS;
  81         } else if (11 == sscanf(str, "{%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
  82                                 &time_low, &time_mid, &time_hi_and_version,
  83                                 &clock_seq[0], &clock_seq[1],
  84                                 &node[0], &node[1], &node[2], &node[3], &node[4], &node[5])) {
  85                 wbc_status = WBC_ERR_SUCCESS;
  86         }
  87
  88         BAIL_ON_WBC_ERROR(wbc_status);
  89
  90         guid->time_low = time_low;
  91         guid->time_mid = time_mid;
  92         guid->time_hi_and_version = time_hi_and_version;
  93         guid->clock_seq[0] = clock_seq[0];
  94         guid->clock_seq[1] = clock_seq[1];
  95
  96         for (i=0;i<6;i++) {
  97                 guid->node[i] = node[i];
  98         }
  99
 100         wbc_status = WBC_ERR_SUCCESS;
 101
 102 done:
 103         return wbc_status;
 104 }