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(TALLOC_CTX *mem_ctx,
  32                                              poptContext pc,
  33                                              struct tevent_context *ev_ctx,
  34                                              struct loadparm_context *lp_ctx,
  35                                              enum reg_backend backend,
  36                                              const char *remote_host)
  37 {
  38         WERROR error;
  39         struct registry_context *ctx;
  40
  41         switch (backend) {
  42         case REG_UNKNOWN:
  43                 poptPrintUsage(pc, stderr, 0);
  44                 return NULL;
  45         case REG_LOCAL:
  46                 error = reg_open_samba(mem_ctx, &ctx, ev_ctx, lp_ctx, NULL,
  47                                 popt_get_cmdline_credentials());
  48                 break;
  49         case REG_REMOTE:
  50                 error = reg_open_remote(mem_ctx, &ctx, NULL,
  51                                 popt_get_cmdline_credentials(), lp_ctx,
  52                                         remote_host, ev_ctx);
  53                 break;
  54         case REG_NULL:
  55                 error = reg_open_local(mem_ctx, &ctx);
  56                 break;
  57         }
  58
  59         if (!W_ERROR_IS_OK(error)) {
  60                 fprintf(stderr, "Error: %s\n", win_errstr(error));
  61                 return NULL;
  62         }
  63
  64         return ctx;
  65 }
  66
  67 int main(int argc, const char **argv)
  68 {
  69         int opt;
  70         poptContext pc;
  71         char *outputfile = NULL;
  72         enum reg_backend backend1 = REG_UNKNOWN, backend2 = REG_UNKNOWN;
  73         const char *remote1 = NULL, *remote2 = NULL;
  74         struct registry_context *h1 = NULL, *h2 = NULL;
  75         WERROR error;
  76         struct poptOption long_options[] = {
  77                 POPT_AUTOHELP
  78                 {"output", 'o', POPT_ARG_STRING, &outputfile, 0, "output file to use", NULL },
  79                 {"null", 'n', POPT_ARG_NONE, NULL, 'n', "Diff from NULL", NULL },
  80                 {"remote", 'R', POPT_ARG_STRING, NULL, 'R', "Connect to remote server" , NULL },
  81                 {"local", 'L', POPT_ARG_NONE, NULL, 'L', "Open local registry", NULL },
  82                 POPT_COMMON_SAMBA
  83                 POPT_COMMON_CREDENTIALS
  84                 POPT_COMMON_VERSION
  85                 { NULL }
  86         };
  87         TALLOC_CTX *ctx;
  88         void *callback_data;
  89         struct tevent_context *ev_ctx;
  90         struct reg_diff_callbacks *callbacks;
  91
  92         ctx = talloc_init("regdiff");
  93
  94         pc = poptGetContext(argv[0], argc, argv, long_options,0);
  95
  96         while((opt = poptGetNextOpt(pc)) != -1) {
  97                 error = WERR_OK;
  98                 switch(opt)     {
  99                 case 'L':
 100                         if (backend1 == REG_UNKNOWN)
 101                                 backend1 = REG_LOCAL;
 102                         else if (backend2 == REG_UNKNOWN)
 103                                 backend2 = REG_LOCAL;
 104                         break;
 105                 case 'n':
 106                         if (backend1 == REG_UNKNOWN)
 107                                 backend1 = REG_NULL;
 108                         else if (backend2 == REG_UNKNOWN)
 109                                 backend2 = REG_NULL;
 110                         break;
 111                 case 'R':
 112                         if (backend1 == REG_UNKNOWN) {
 113                                 backend1 = REG_REMOTE;
 114                                 remote1 = poptGetOptArg(pc);
 115                         } else if (backend2 == REG_UNKNOWN) {
 116                                 backend2 = REG_REMOTE;
 117                                 remote2 = poptGetOptArg(pc);
 118                         }
 119                         break;
 120                 }
 121
 122         }
 123
 124         ev_ctx = s4_event_context_init(ctx);
 125
 126         h1 = open_backend(ctx, pc, ev_ctx, cmdline_lp_ctx, backend1, remote1);
 127         if (h1 == NULL)
 128                 return 1;
 129
 130         h2 = open_backend(ctx, pc, ev_ctx, cmdline_lp_ctx, backend2, remote2);
 131         if (h2 == NULL)
 132                 return 1;
 133
 134         poptFreeContext(pc);
 135
 136         error = reg_dotreg_diff_save(ctx, outputfile, &callbacks, &callback_data);
 137         if (!W_ERROR_IS_OK(error)) {
 138                 fprintf(stderr, "Problem saving registry diff to '%s': %s\n",
 139                         outputfile, win_errstr(error));
 140                 return -1;
 141         }
 142
 143         error = reg_generate_diff(h1, h2, callbacks, callback_data);
 144         if (!W_ERROR_IS_OK(error)) {
 145                 fprintf(stderr, "Unable to generate diff between keys: %s\n",
 146                         win_errstr(error));
 147                 return -1;
 148         }
 149
 150         return 0;
 151 }