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 "replace.h"
  26 #include "libwbclient.h"
  27
  28 /* Convert a binary GUID to a character string */
  29 wbcErr wbcGuidToString(const struct wbcGuid *guid,
  30                        char **guid_string)
  31 {
  32         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
  33
  34         if (!guid) {
  35                 wbc_status = WBC_ERR_INVALID_PARAM;
  36                 BAIL_ON_WBC_ERROR(wbc_status);
  37         }
  38
  39         *guid_string = talloc_asprintf(NULL,
  40                                        "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
  41                                        guid->time_low, guid->time_mid,
  42                                        guid->time_hi_and_version,
  43                                        guid->clock_seq[0],
  44                                        guid->clock_seq[1],
  45                                        guid->node[0], guid->node[1],
  46                                        guid->node[2], guid->node[3],
  47                                        guid->node[4], guid->node[5]);
  48         BAIL_ON_PTR_ERROR((*guid_string), wbc_status);
  49
  50         wbc_status = WBC_ERR_SUCCESS;
  51
  52 done:
  53         return wbc_status;
  54 }
  55
  56 /* @brief Convert a character string to a binary GUID */
  57 wbcErr wbcStringToGuid(const char *str,
  58                        struct wbcGuid *guid)
  59 {
  60         uint32_t time_low;
  61         uint32_t time_mid, time_hi_and_version;
  62         uint32_t clock_seq[2];
  63         uint32_t node[6];
  64         int i;
  65         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
  66
  67         if (!guid) {
  68                 wbc_status = WBC_ERR_INVALID_PARAM;
  69                 BAIL_ON_WBC_ERROR(wbc_status);
  70         }
  71
  72         if (!str) {
  73                 wbc_status = WBC_ERR_INVALID_PARAM;
  74                 BAIL_ON_WBC_ERROR(wbc_status);
  75         }
  76
  77         if (11 == sscanf(str, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
  78                          &time_low, &time_mid, &time_hi_and_version,
  79                          &clock_seq[0], &clock_seq[1],
  80                          &node[0], &node[1], &node[2], &node[3], &node[4], &node[5])) {
  81                 wbc_status = WBC_ERR_SUCCESS;
  82         } else if (11 == sscanf(str, "{%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
  83                                 &time_low, &time_mid, &time_hi_and_version,
  84                                 &clock_seq[0], &clock_seq[1],
  85                                 &node[0], &node[1], &node[2], &node[3], &node[4], &node[5])) {
  86                 wbc_status = WBC_ERR_SUCCESS;
  87         }
  88
  89         BAIL_ON_WBC_ERROR(wbc_status);
  90
  91         guid->time_low = time_low;
  92         guid->time_mid = time_mid;
  93         guid->time_hi_and_version = time_hi_and_version;
  94         guid->clock_seq[0] = clock_seq[0];
  95         guid->clock_seq[1] = clock_seq[1];
  96
  97         for (i=0;i<6;i++) {
  98                 guid->node[i] = node[i];
  99         }
 100
 101         wbc_status = WBC_ERR_SUCCESS;
 102
 103 done:
 104         return wbc_status;
 105 }