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/cmdline.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         struct cli_credentials *creds = samba_cmdline_get_creds();
  41
  42         switch (backend) {
  43         case REG_UNKNOWN:
  44                 poptPrintUsage(pc, stderr, 0);
  45                 return NULL;
  46         case REG_LOCAL:
  47                 error = reg_open_samba(mem_ctx, &ctx, ev_ctx, lp_ctx, NULL,
  48                                 creds);
  49                 break;
  50         case REG_REMOTE:
  51                 error = reg_open_remote(mem_ctx, &ctx, creds, 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, char **argv)
  68 {
  69         const char **argv_const = discard_const_p(const char *, argv);
  70         int opt;
  71         poptContext pc;
  72         char *outputfile = NULL;
  73         enum reg_backend backend1 = REG_UNKNOWN, backend2 = REG_UNKNOWN;
  74         const char *remote1 = NULL, *remote2 = NULL;
  75         struct registry_context *h1 = NULL, *h2 = NULL;
  76         WERROR error;
  77         struct poptOption long_options[] = {
  78                 POPT_AUTOHELP
  79                 {"output", 'o', POPT_ARG_STRING, &outputfile, 0, "output file to use", NULL },
  80                 {"null", 'n', POPT_ARG_NONE, NULL, 'n', "Diff from NULL", NULL },
  81                 {"remote", 'R', POPT_ARG_STRING, NULL, 'R', "Connect to remote server" , NULL },
  82                 {"local", 'L', POPT_ARG_NONE, NULL, 'L', "Open local registry", NULL },
  83                 POPT_COMMON_SAMBA
  84                 POPT_COMMON_CREDENTIALS
  85                 POPT_COMMON_VERSION
  86                 {0}
  87         };
  88         TALLOC_CTX *ctx;
  89         void *callback_data;
  90         struct tevent_context *ev_ctx;
  91         struct reg_diff_callbacks *callbacks;
  92         struct loadparm_context *lp_ctx = NULL;
  93         bool ok;
  94
  95         ctx = talloc_init("regdiff");
  96         if (ctx == NULL) {
  97                 exit(ENOMEM);
  98         }
  99
 100         ok = samba_cmdline_init(ctx,
 101                                 SAMBA_CMDLINE_CONFIG_CLIENT,
 102                                 false /* require_smbconf */);
 103         if (!ok) {
 104                 DBG_ERR("Failed to init cmdline parser!\n");
 105                 TALLOC_FREE(ctx);
 106                 exit(1);
 107         }
 108
 109         pc = samba_popt_get_context(getprogname(),
 110                                     argc,
 111                                     argv_const,
 112                                     long_options,
 113                                     0);
 114         if (pc == NULL) {
 115                 DBG_ERR("Failed to setup popt context!\n");
 116                 TALLOC_FREE(ctx);
 117                 exit(1);
 118         }
 119
 120         while((opt = poptGetNextOpt(pc)) != -1) {
 121                 error = WERR_OK;
 122                 switch(opt)     {
 123                 case 'L':
 124                         if (backend1 == REG_UNKNOWN)
 125                                 backend1 = REG_LOCAL;
 126                         else if (backend2 == REG_UNKNOWN)
 127                                 backend2 = REG_LOCAL;
 128                         break;
 129                 case 'n':
 130                         if (backend1 == REG_UNKNOWN)
 131                                 backend1 = REG_NULL;
 132                         else if (backend2 == REG_UNKNOWN)
 133                                 backend2 = REG_NULL;
 134                         break;
 135                 case 'R':
 136                         if (backend1 == REG_UNKNOWN) {
 137                                 backend1 = REG_REMOTE;
 138                                 remote1 = poptGetOptArg(pc);
 139                         } else if (backend2 == REG_UNKNOWN) {
 140                                 backend2 = REG_REMOTE;
 141                                 remote2 = poptGetOptArg(pc);
 142                         }
 143                         break;
 144                 case POPT_ERROR_BADOPT:
 145                         fprintf(stderr, "\nInvalid option %s: %s\n\n",
 146                                 poptBadOption(pc, 0), poptStrerror(opt));
 147                         poptPrintUsage(pc, stderr, 0);
 148                         exit(1);
 149                 }
 150
 151         }
 152
 153         ev_ctx = s4_event_context_init(ctx);
 154         lp_ctx = samba_cmdline_get_lp_ctx();
 155
 156         h1 = open_backend(ctx, pc, ev_ctx, lp_ctx, backend1, remote1);
 157         if (h1 == NULL)
 158                 return 1;
 159
 160         h2 = open_backend(ctx, pc, ev_ctx, lp_ctx, backend2, remote2);
 161         if (h2 == NULL)
 162                 return 1;
 163
 164         poptFreeContext(pc);
 165         samba_cmdline_burn(argc, argv);
 166
 167         error = reg_dotreg_diff_save(ctx, outputfile, &callbacks, &callback_data);
 168         if (!W_ERROR_IS_OK(error)) {
 169                 fprintf(stderr, "Problem saving registry diff to '%s': %s\n",
 170                         outputfile, win_errstr(error));
 171                 return -1;
 172         }
 173
 174         error = reg_generate_diff(h1, h2, callbacks, callback_data);
 175         if (!W_ERROR_IS_OK(error)) {
 176                 fprintf(stderr, "Unable to generate diff between keys: %s\n",
 177                         win_errstr(error));
 178                 return -1;
 179         }
 180
 181         return 0;
 182 }