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, NULL,
  52                                 creds, lp_ctx,
  53                                         remote_host, ev_ctx);
  54                 break;
  55         case REG_NULL:
  56                 error = reg_open_local(mem_ctx, &ctx);
  57                 break;
  58         }
  59
  60         if (!W_ERROR_IS_OK(error)) {
  61                 fprintf(stderr, "Error: %s\n", win_errstr(error));
  62                 return NULL;
  63         }
  64
  65         return ctx;
  66 }
  67
  68 int main(int argc, char **argv)
  69 {
  70         const char **argv_const = discard_const_p(const char *, argv);
  71         int opt;
  72         poptContext pc;
  73         char *outputfile = NULL;
  74         enum reg_backend backend1 = REG_UNKNOWN, backend2 = REG_UNKNOWN;
  75         const char *remote1 = NULL, *remote2 = NULL;
  76         struct registry_context *h1 = NULL, *h2 = NULL;
  77         WERROR error;
  78         struct poptOption long_options[] = {
  79                 POPT_AUTOHELP
  80                 {"output", 'o', POPT_ARG_STRING, &outputfile, 0, "output file to use", NULL },
  81                 {"null", 'n', POPT_ARG_NONE, NULL, 'n', "Diff from NULL", NULL },
  82                 {"remote", 'R', POPT_ARG_STRING, NULL, 'R', "Connect to remote server" , NULL },
  83                 {"local", 'L', POPT_ARG_NONE, NULL, 'L', "Open local registry", NULL },
  84                 POPT_COMMON_SAMBA
  85                 POPT_COMMON_CREDENTIALS
  86                 POPT_COMMON_VERSION
  87                 {0}
  88         };
  89         TALLOC_CTX *ctx;
  90         void *callback_data;
  91         struct tevent_context *ev_ctx;
  92         struct reg_diff_callbacks *callbacks;
  93         struct loadparm_context *lp_ctx = NULL;
  94         bool ok;
  95
  96         ctx = talloc_init("regdiff");
  97         if (ctx == NULL) {
  98                 exit(ENOMEM);
  99         }
 100
 101         ok = samba_cmdline_init(ctx,
 102                                 SAMBA_CMDLINE_CONFIG_CLIENT,
 103                                 false /* require_smbconf */);
 104         if (!ok) {
 105                 DBG_ERR("Failed to init cmdline parser!\n");
 106                 TALLOC_FREE(ctx);
 107                 exit(1);
 108         }
 109
 110         pc = samba_popt_get_context(getprogname(),
 111                                     argc,
 112                                     argv_const,
 113                                     long_options,
 114                                     0);
 115         if (pc == NULL) {
 116                 DBG_ERR("Failed to setup popt context!\n");
 117                 TALLOC_FREE(ctx);
 118                 exit(1);
 119         }
 120
 121         while((opt = poptGetNextOpt(pc)) != -1) {
 122                 error = WERR_OK;
 123                 switch(opt)     {
 124                 case 'L':
 125                         if (backend1 == REG_UNKNOWN)
 126                                 backend1 = REG_LOCAL;
 127                         else if (backend2 == REG_UNKNOWN)
 128                                 backend2 = REG_LOCAL;
 129                         break;
 130                 case 'n':
 131                         if (backend1 == REG_UNKNOWN)
 132                                 backend1 = REG_NULL;
 133                         else if (backend2 == REG_UNKNOWN)
 134                                 backend2 = REG_NULL;
 135                         break;
 136                 case 'R':
 137                         if (backend1 == REG_UNKNOWN) {
 138                                 backend1 = REG_REMOTE;
 139                                 remote1 = poptGetOptArg(pc);
 140                         } else if (backend2 == REG_UNKNOWN) {
 141                                 backend2 = REG_REMOTE;
 142                                 remote2 = poptGetOptArg(pc);
 143                         }
 144                         break;
 145                 }
 146
 147         }
 148
 149         ev_ctx = s4_event_context_init(ctx);
 150         lp_ctx = samba_cmdline_get_lp_ctx();
 151
 152         h1 = open_backend(ctx, pc, ev_ctx, lp_ctx, backend1, remote1);
 153         if (h1 == NULL)
 154                 return 1;
 155
 156         h2 = open_backend(ctx, pc, ev_ctx, lp_ctx, backend2, remote2);
 157         if (h2 == NULL)
 158                 return 1;
 159
 160         poptFreeContext(pc);
 161         samba_cmdline_burn(argc, argv);
 162
 163         error = reg_dotreg_diff_save(ctx, outputfile, &callbacks, &callback_data);
 164         if (!W_ERROR_IS_OK(error)) {
 165                 fprintf(stderr, "Problem saving registry diff to '%s': %s\n",
 166                         outputfile, win_errstr(error));
 167                 return -1;
 168         }
 169
 170         error = reg_generate_diff(h1, h2, callbacks, callback_data);
 171         if (!W_ERROR_IS_OK(error)) {
 172                 fprintf(stderr, "Unable to generate diff between keys: %s\n",
 173                         win_errstr(error));
 174                 return -1;
 175         }
 176
 177         return 0;
 178 }