source4/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 tevent_context *ev_ctx,
  33                                              struct loadparm_context *lp_ctx,
  34                                              enum reg_backend backend,
  35                                              const char *remote_host)
  36 {
  37         WERROR error;
  38         struct registry_context *ctx;
  39
  40         switch (backend) {
  41         case REG_UNKNOWN:
  42                 poptPrintUsage(pc, stderr, 0);
  43                 return NULL;
  44         case REG_LOCAL:
  45                 error = reg_open_samba(NULL, &ctx, ev_ctx, lp_ctx, NULL, cmdline_credentials);
  46                 break;
  47         case REG_REMOTE:
  48                 error = reg_open_remote(NULL, &ctx, NULL, cmdline_credentials, lp_ctx,
  49                                         remote_host, ev_ctx);
  50                 break;
  51         case REG_NULL:
  52                 error = reg_open_local(NULL, &ctx);
  53                 break;
  54         }
  55
  56         if (!W_ERROR_IS_OK(error)) {
  57                 fprintf(stderr, "Error: %s\n", win_errstr(error));
  58                 return NULL;
  59         }
  60
  61         return ctx;
  62 }
  63
  64 int main(int argc, const char **argv)
  65 {
  66         int opt;
  67         poptContext pc;
  68         char *outputfile = NULL;
  69         enum reg_backend backend1 = REG_UNKNOWN, backend2 = REG_UNKNOWN;
  70         const char *remote1 = NULL, *remote2 = NULL;
  71         struct registry_context *h1 = NULL, *h2 = NULL;
  72         WERROR error;
  73         struct poptOption long_options[] = {
  74                 POPT_AUTOHELP
  75                 {"output", 'o', POPT_ARG_STRING, &outputfile, 0, "output file to use", NULL },
  76                 {"null", 'n', POPT_ARG_NONE, NULL, 'n', "Diff from NULL", NULL },
  77                 {"remote", 'R', POPT_ARG_STRING, NULL, 'R', "Connect to remote server" , NULL },
  78                 {"local", 'L', POPT_ARG_NONE, NULL, 'L', "Open local registry", NULL },
  79                 POPT_COMMON_SAMBA
  80                 POPT_COMMON_CREDENTIALS
  81                 POPT_COMMON_VERSION
  82                 { NULL }
  83         };
  84         TALLOC_CTX *ctx;
  85         void *callback_data;
  86         struct tevent_context *ev_ctx;
  87         struct reg_diff_callbacks *callbacks;
  88
  89         ctx = talloc_init("regdiff");
  90
  91         pc = poptGetContext(argv[0], argc, argv, long_options,0);
  92
  93         while((opt = poptGetNextOpt(pc)) != -1) {
  94                 error = WERR_OK;
  95                 switch(opt)     {
  96                 case 'L':
  97                         if (backend1 == REG_UNKNOWN)
  98                                 backend1 = REG_LOCAL;
  99                         else if (backend2 == REG_UNKNOWN)
 100                                 backend2 = REG_LOCAL;
 101                         break;
 102                 case 'n':
 103                         if (backend1 == REG_UNKNOWN)
 104                                 backend1 = REG_NULL;
 105                         else if (backend2 == REG_UNKNOWN)
 106                                 backend2 = REG_NULL;
 107                         break;
 108                 case 'R':
 109                         if (backend1 == REG_UNKNOWN) {
 110                                 backend1 = REG_REMOTE;
 111                                 remote1 = poptGetOptArg(pc);
 112                         } else if (backend2 == REG_UNKNOWN) {
 113                                 backend2 = REG_REMOTE;
 114                                 remote2 = poptGetOptArg(pc);
 115                         }
 116                         break;
 117                 }
 118
 119         }
 120
 121         ev_ctx = s4_event_context_init(NULL);
 122
 123         h1 = open_backend(pc, ev_ctx, cmdline_lp_ctx, backend1, remote1);
 124         if (h1 == NULL)
 125                 return 1;
 126
 127         h2 = open_backend(pc, ev_ctx, cmdline_lp_ctx, backend2, remote2);
 128         if (h2 == NULL)
 129                 return 1;
 130
 131         poptFreeContext(pc);
 132
 133         error = reg_dotreg_diff_save(ctx, outputfile, &callbacks, &callback_data);
 134         if (!W_ERROR_IS_OK(error)) {
 135                 fprintf(stderr, "Problem saving registry diff to '%s': %s\n",
 136                         outputfile, win_errstr(error));
 137                 return -1;
 138         }
 139
 140         error = reg_generate_diff(h1, h2, callbacks, callback_data);
 141         if (!W_ERROR_IS_OK(error)) {
 142                 fprintf(stderr, "Unable to generate diff between keys: %s\n",
 143                         win_errstr(error));
 144                 return -1;
 145         }
 146
 147         return 0;
 148 }