source4/lib/registry/tools/regdiff.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    simple registry frontend
   4
   5    Copyright (C) Jelmer Vernooij 2004
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23 #include "lib/cmdline/popt_common.h"
  24
  25 static void writediff(struct registry_key *oldkey, struct registry_key *newkey, FILE *out)
  26 {
  27         int i;
  28         struct registry_key *t1, *t2;
  29         struct registry_value *v1, *v2;
  30         WERROR error1, error2;
  31         TALLOC_CTX *mem_ctx = talloc_init("writediff");
  32
  33         for(i = 0; W_ERROR_IS_OK(error1 = reg_key_get_subkey_by_index(mem_ctx, oldkey, i, &t1)); i++) {
  34                 error2 = reg_key_get_subkey_by_name(mem_ctx, newkey, t1->name, &t2);
  35                 if(W_ERROR_EQUAL(error2, WERR_DEST_NOT_FOUND)) {
  36                         fprintf(out, "-%s\n", t1->path+1);
  37                 } else if(!W_ERROR_IS_OK(error2)) {
  38                         DEBUG(0, ("Error occured while getting subkey by name: %d\n", W_ERROR_V(error2)));
  39                 }
  40         }
  41
  42         talloc_destroy(mem_ctx);
  43
  44         if(!W_ERROR_EQUAL(error1, WERR_NO_MORE_ITEMS)) {
  45                 DEBUG(0, ("Error occured while getting subkey by index: %d\n", W_ERROR_V(error1)));
  46                 return;
  47         }
  48
  49         mem_ctx = talloc_init("writediff");
  50
  51         for(i = 0; W_ERROR_IS_OK(error1 = reg_key_get_subkey_by_index(mem_ctx, newkey, i, &t1)); i++) {
  52                 error2 = reg_key_get_subkey_by_name(mem_ctx, oldkey, t1->name, &t2);
  53                 if(W_ERROR_EQUAL(error2, WERR_DEST_NOT_FOUND)) {
  54                         fprintf(out, "\n[%s]\n", t1->path+1);
  55                 } else if(!W_ERROR_IS_OK(error2)) {
  56                         DEBUG(0, ("Error occured while getting subkey by name: %d\n", W_ERROR_V(error2)));
  57                 }
  58                 writediff(t2, t1, out);
  59         }
  60
  61         talloc_destroy(mem_ctx);
  62
  63         if(!W_ERROR_EQUAL(error1, WERR_NO_MORE_ITEMS)) {
  64                 DEBUG(0, ("Error occured while getting subkey by index: %d\n", W_ERROR_V(error1)));
  65                 return;
  66         }
  67
  68
  69         mem_ctx = talloc_init("writediff");
  70
  71         for(i = 0; W_ERROR_IS_OK(error1 = reg_key_get_value_by_index(mem_ctx, newkey, i, &v1)); i++) {
  72                 error2 = reg_key_get_value_by_name(mem_ctx, oldkey, v1->name, &v2);
  73                 if ((W_ERROR_IS_OK(error2) && (v2->data_len != v1->data_len || memcmp(v1->data_blk, v2->data_blk, v1->data_len)))
  74                         || W_ERROR_EQUAL(error2, WERR_DEST_NOT_FOUND)) {
  75                         fprintf(out, "\"%s\"=%s:%s\n", v1->name, str_regtype(v1->data_type), reg_val_data_string(mem_ctx, v1));
  76                 }
  77
  78                 if(!W_ERROR_IS_OK(error2) && !W_ERROR_EQUAL(error2, WERR_DEST_NOT_FOUND)) {
  79                         DEBUG(0, ("Error occured while getting value by name: %d\n", W_ERROR_V(error2)));
  80                 }
  81         }
  82
  83         talloc_destroy(mem_ctx);
  84
  85         if(!W_ERROR_EQUAL(error1, WERR_NO_MORE_ITEMS)) {
  86                 DEBUG(0, ("Error occured while getting value by index: %d\n", W_ERROR_V(error1)));
  87                 return;
  88         }
  89
  90         mem_ctx = talloc_init("writediff");
  91
  92         for(i = 0; W_ERROR_IS_OK(error1 = reg_key_get_value_by_index(mem_ctx, oldkey, i, &v1)); i++) {
  93                 error2 = reg_key_get_value_by_name(mem_ctx, newkey, v1->name, &v2);
  94                 if(W_ERROR_IS_OK(error2)) {
  95                 } else if(W_ERROR_EQUAL(error2, WERR_DEST_NOT_FOUND)) {
  96                         fprintf(out, "\"%s\"=-\n", v1->name);
  97                 } else {
  98                         DEBUG(0, ("Error occured while getting value by name: %d\n", W_ERROR_V(error2)));
  99                 }
 100         }
 101
 102         talloc_destroy(mem_ctx);
 103
 104         if(!W_ERROR_EQUAL(error1, WERR_NO_MORE_ITEMS)) {
 105                 DEBUG(0, ("Error occured while getting value by index: %d\n", W_ERROR_V(error1)));
 106                 return;
 107         }
 108 }
 109
 110  int main(int argc, char **argv)
 111 {
 112         int opt;
 113         poptContext pc;
 114         const char *backend1 = NULL, *backend2 = NULL;
 115         const char *location2;
 116         const char *credentials1= NULL, *credentials2 = NULL;
 117         char *outputfile = NULL;
 118         FILE *fd = stdout;
 119         struct registry_context *h1 = NULL, *h2;
 120         int from_null = 0;
 121         int i;
 122         WERROR error, error2;
 123         struct poptOption long_options[] = {
 124                 POPT_AUTOHELP
 125                 {"backend", 'b', POPT_ARG_STRING, NULL, 'b', "backend to use", NULL},
 126                 {"credentials", 'c', POPT_ARG_STRING, NULL, 'c', "credentials", NULL},
 127                 {"output", 'o', POPT_ARG_STRING, &outputfile, 'o', "output file to use", NULL },
 128                 {"null", 'n', POPT_ARG_NONE, &from_null, 'n', "Diff from NULL" },
 129                 POPT_TABLEEND
 130         };
 131
 132
 133         if (!lp_load(dyn_CONFIGFILE,True,False,False)) {
 134                 fprintf(stderr, "Can't load %s - run testparm to debug it\n", dyn_CONFIGFILE);
 135         }
 136
 137
 138         pc = poptGetContext(argv[0], argc, (const char **) argv, long_options,0);
 139
 140         while((opt = poptGetNextOpt(pc)) != -1) {
 141                 switch(opt)     {
 142                 case 'c':
 143                         if(!credentials1 && !from_null) credentials1 = poptGetOptArg(pc);
 144                         else if(!credentials2) credentials2 = poptGetOptArg(pc);
 145                         break;
 146                 case 'b':
 147                         if(!backend1 && !from_null) backend1 = poptGetOptArg(pc);
 148                         else if(!backend2) backend2 = poptGetOptArg(pc);
 149                         break;
 150                 }
 151         }
 152         setup_logging(argv[0], True);
 153
 154         if(!from_null) {
 155                 const char *location1;
 156                 location1 = poptGetArg(pc);
 157                 if(!location1) {
 158                         poptPrintUsage(pc, stderr, 0);
 159                         return 1;
 160                 }
 161
 162                 if(!backend1) backend1 = "rpc";
 163
 164                 error = reg_open(&h1, backend1, location1, credentials1);
 165                 if(!W_ERROR_IS_OK(error)) {
 166                         fprintf(stderr, "Unable to open '%s' with backend '%s'\n", location1, backend1);
 167                         return 1;
 168                 }
 169         }
 170
 171         location2 = poptGetArg(pc);
 172         if(!location2) {
 173                 poptPrintUsage(pc, stderr, 0);
 174                 return 2;
 175         }
 176
 177         if(!backend2) backend2 = "rpc";
 178
 179         error = reg_open(&h2, backend2, location2, credentials2);
 180         if(!W_ERROR_IS_OK(error)) {
 181                 fprintf(stderr, "Unable to open '%s' with backend '%s'\n", location2, backend2);
 182                 return 1;
 183         }
 184
 185         poptFreeContext(pc);
 186
 187         if(outputfile) {
 188                 fd = fopen(outputfile, "w+");
 189                 if(!fd) {
 190                         fprintf(stderr, "Unable to open '%s'\n", outputfile);
 191                         return 1;
 192                 }
 193         }
 194
 195         fprintf(fd, "REGEDIT4\n\n");
 196         fprintf(fd, "; Generated using regdiff\n");
 197
 198         error2 = error = WERR_OK;
 199
 200         for(i = 0; (!h1 || i < h1->num_hives) && i < h2->num_hives; i++) {
 201                 writediff(h1?h1->hives[i]->root:NULL, h2->hives[i]->root, fd);
 202         }
 203
 204         fclose(fd);
 205
 206         return 0;
 207 }