fcf7c26237898edcb95830ed416988e5b5518113
[gd/samba-autobuild/.git] / 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(poptContext pc,
32                                              struct event_context *ev_ctx,
33                                              struct loadparm_context *lp_ctx,
34                                              enum reg_backend backend,
35                                              const char *remote_host)
36 {
37         WERROR error;
38         struct registry_context *ctx;
39
40         switch (backend) {
41         case REG_UNKNOWN:
42                 poptPrintUsage(pc, stderr, 0);
43                 return NULL;
44         case REG_LOCAL:
45                 error = reg_open_samba(NULL, &ctx, ev_ctx, lp_ctx, NULL, cmdline_credentials);
46                 break;
47         case REG_REMOTE:
48                 error = reg_open_remote(&ctx, NULL, cmdline_credentials, lp_ctx,
49                                         remote_host, ev_ctx);
50                 break;
51         case REG_NULL:
52                 error = reg_open_local(NULL, &ctx);
53                 break;
54         }
55
56         if (!W_ERROR_IS_OK(error)) {
57                 fprintf(stderr, "Error: %s\n", win_errstr(error));
58                 return NULL;
59         }
60
61         return ctx;
62 }
63
64 int main(int argc, const char **argv)
65 {
66         int opt;
67         poptContext pc;
68         char *outputfile = NULL;
69         enum reg_backend backend1 = REG_UNKNOWN, backend2 = REG_UNKNOWN;
70         const char *remote1 = NULL, *remote2 = NULL;
71         struct registry_context *h1 = NULL, *h2 = NULL;
72         WERROR error;
73         struct poptOption long_options[] = {
74                 POPT_AUTOHELP
75                 {"output", 'o', POPT_ARG_STRING, &outputfile, 0, "output file to use", NULL },
76                 {"null", 'n', POPT_ARG_NONE, NULL, 'n', "Diff from NULL", NULL },
77                 {"remote", 'R', POPT_ARG_STRING, NULL, 'R', "Connect to remote server" , NULL },
78                 {"local", 'L', POPT_ARG_NONE, NULL, 'L', "Open local registry", NULL },
79                 POPT_COMMON_SAMBA
80                 POPT_COMMON_CREDENTIALS
81                 POPT_COMMON_VERSION
82                 { NULL }
83         };
84         TALLOC_CTX *ctx;
85         void *callback_data;
86         struct event_context *ev_ctx;
87         struct reg_diff_callbacks *callbacks;
88
89         ctx = talloc_init("regdiff");
90
91         pc = poptGetContext(argv[0], argc, argv, long_options,0);
92
93         while((opt = poptGetNextOpt(pc)) != -1) {
94                 error = WERR_OK;
95                 switch(opt)     {
96                 case 'L':
97                         if (backend1 == REG_UNKNOWN)
98                                 backend1 = REG_LOCAL;
99                         else if (backend2 == REG_UNKNOWN)
100                                 backend2 = REG_LOCAL;
101                         break;
102                 case 'n':
103                         if (backend1 == REG_UNKNOWN)
104                                 backend1 = REG_NULL;
105                         else if (backend2 == REG_UNKNOWN)
106                                 backend2 = REG_NULL;
107                         break;
108                 case 'R':
109                         if (backend1 == REG_UNKNOWN) {
110                                 backend1 = REG_REMOTE;
111                                 remote1 = poptGetOptArg(pc);
112                         } else if (backend2 == REG_UNKNOWN) {
113                                 backend2 = REG_REMOTE;
114                                 remote2 = poptGetOptArg(pc);
115                         }
116                         break;
117                 }
118
119         }
120
121         ev_ctx = s4_event_context_init(NULL);
122
123         h1 = open_backend(pc, ev_ctx, cmdline_lp_ctx, backend1, remote1);
124         if (h1 == NULL)
125                 return 1;
126
127         h2 = open_backend(pc, ev_ctx, cmdline_lp_ctx, backend2, remote2);
128         if (h2 == NULL)
129                 return 1;
130
131         poptFreeContext(pc);
132
133         error = reg_dotreg_diff_save(ctx, outputfile, lp_iconv_convenience(cmdline_lp_ctx), &callbacks,
134                                      &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 }