source/lib/registry/tools/regdiff.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    simple registry frontend
   4
   5    Copyright (C) Jelmer Vernooij 2004-2007
   6    Copyright (C) Wilco Baan Hofman 2006
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "lib/registry/registry.h"
  24 #include "lib/events/events.h"
  25 #include "lib/cmdline/popt_common.h"
  26 #include "lib/registry/tools/common.h"
  27 #include "param/param.h"
  28
  29 enum reg_backend { REG_UNKNOWN, REG_LOCAL, REG_REMOTE, REG_NULL };
  30
  31 static struct registry_context *open_backend(poptContext pc,
  32                                              struct loadparm_context *lp_ctx,
  33                                              enum reg_backend backend,
  34                                              const char *remote_host)
  35 {
  36         WERROR error;
  37         struct registry_context *ctx;
  38
  39         switch (backend) {
  40         case REG_UNKNOWN:
  41                 poptPrintUsage(pc, stderr, 0);
  42                 return NULL;
  43         case REG_LOCAL:
  44                 error = reg_open_samba(NULL, &ctx, lp_ctx, NULL, cmdline_credentials);
  45                 break;
  46         case REG_REMOTE:
  47                 error = reg_open_remote(&ctx, NULL, cmdline_credentials,
  48                                         remote_host, NULL);
  49                 break;
  50         case REG_NULL:
  51                 error = reg_open_local(NULL, &ctx, NULL, cmdline_credentials);
  52                 break;
  53         }
  54
  55         if (!W_ERROR_IS_OK(error)) {
  56                 fprintf(stderr, "Error: %s\n", win_errstr(error));
  57                 return NULL;
  58         }
  59
  60         return ctx;
  61 }
  62
  63 int main(int argc, const char **argv)
  64 {
  65         int opt;
  66         poptContext pc;
  67         char *outputfile = NULL;
  68         enum reg_backend backend1 = REG_UNKNOWN, backend2 = REG_UNKNOWN;
  69         const char *remote1 = NULL, *remote2 = NULL;
  70         struct registry_context *h1 = NULL, *h2 = NULL;
  71         WERROR error;
  72         struct poptOption long_options[] = {
  73                 POPT_AUTOHELP
  74                 {"output", 'o', POPT_ARG_STRING, &outputfile, 0, "output file to use", NULL },
  75                 {"null", 'n', POPT_ARG_NONE, NULL, 'n', "Diff from NULL", NULL },
  76                 {"remote", 'R', POPT_ARG_STRING, NULL, 'R', "Connect to remote server" , NULL },
  77                 {"local", 'L', POPT_ARG_NONE, NULL, 'L', "Open local registry", NULL },
  78                 POPT_COMMON_SAMBA
  79                 POPT_COMMON_CREDENTIALS
  80                 POPT_COMMON_VERSION
  81                 { NULL }
  82         };
  83         TALLOC_CTX *ctx;
  84         void *callback_data;
  85         struct reg_diff_callbacks *callbacks;
  86
  87         ctx = talloc_init("regdiff");
  88
  89         pc = poptGetContext(argv[0], argc, argv, long_options,0);
  90
  91         while((opt = poptGetNextOpt(pc)) != -1) {
  92                 error = WERR_OK;
  93                 switch(opt)     {
  94                 case 'L':
  95                         if (backend1 == REG_UNKNOWN)
  96                                 backend1 = REG_LOCAL;
  97                         else if (backend2 == REG_UNKNOWN)
  98                                 backend2 = REG_LOCAL;
  99                         break;
 100                 case 'n':
 101                         if (backend1 == REG_UNKNOWN)
 102                                 backend1 = REG_NULL;
 103                         else if (backend2 == REG_UNKNOWN)
 104                                 backend2 = REG_NULL;
 105                         break;
 106                 case 'R':
 107                         if (backend1 == REG_UNKNOWN) {
 108                                 backend1 = REG_REMOTE;
 109                                 remote1 = poptGetOptArg(pc);
 110                         } else if (backend2 == REG_UNKNOWN) {
 111                                 backend2 = REG_REMOTE;
 112                                 remote2 = poptGetOptArg(pc);
 113                         }
 114                         break;
 115                 }
 116
 117         }
 118
 119         h1 = open_backend(pc, global_loadparm, backend1, remote1);
 120         if (h1 == NULL)
 121                 return 1;
 122
 123         h2 = open_backend(pc, global_loadparm, backend2, remote2);
 124         if (h2 == NULL)
 125                 return 1;
 126
 127         poptFreeContext(pc);
 128
 129         error = reg_dotreg_diff_save(ctx, outputfile, &callbacks,
 130                                      &callback_data);
 131         if (!W_ERROR_IS_OK(error)) {
 132                 fprintf(stderr, "Problem saving registry diff to '%s': %s\n",
 133                         outputfile, win_errstr(error));
 134                 return -1;
 135         }
 136
 137         error = reg_generate_diff(h1, h2, callbacks, callback_data);
 138         if (!W_ERROR_IS_OK(error)) {
 139                 fprintf(stderr, "Unable to generate diff between keys: %s\n",
 140                         win_errstr(error));
 141                 return -1;
 142         }
 143
 144         return 0;
 145 }