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