2 Unix SMB/CIFS implementation.
3 Reading Registry.pol PReg registry files
5 Copyright (C) Wilco Baan Hofman 2006
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.
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.
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.
23 #include "lib/registry/registry.h"
24 #include "lib/registry/patchfile.h"
25 #include "system/filesys.h"
32 static WERROR preg_read_utf16(int fd, char *c)
36 if (read(fd, &v, 2) < 2) {
37 return WERR_GENERAL_FAILURE;
43 /* FIXME These functions need to be implemented */
44 static WERROR reg_preg_diff_add_key(void *_data, const char *key_name)
46 struct preg_data *data = (struct preg_data *)_data;
50 static WERROR reg_preg_diff_del_key(void *_data, const char *key_name)
52 struct preg_data *data = (struct preg_data *)_data;
56 static WERROR reg_preg_diff_set_value(void *_data, const char *key_name, const char *value_name, uint32_t value_type, DATA_BLOB value_data)
58 struct preg_data *data = (struct preg_data *)_data;
62 static WERROR reg_preg_diff_del_value(void *_data, const char *key_name, const char *value_name)
64 struct preg_data *data = (struct preg_data *)_data;
68 static WERROR reg_preg_diff_del_all_values(void *_data, const char *key_name)
70 struct preg_data *data = (struct preg_data *)_data;
74 static WERROR reg_preg_diff_done(void *_data)
76 struct preg_data *data = (struct preg_data *)_data;
86 _PUBLIC_ WERROR reg_preg_diff_save(TALLOC_CTX *ctx, const char *filename, struct reg_diff_callbacks **callbacks, void **callback_data)
88 struct preg_data *data;
95 data = talloc_zero(ctx, struct preg_data);
96 *callback_data = data;
99 data->fd = open(filename, O_CREAT, 0755);
100 if (data->fd == -1) {
101 DEBUG(0, ("Unable to open %s\n", filename));
105 data->fd = STDOUT_FILENO;
107 snprintf(preg_header.hdr, 4, "PReg");
108 SIVAL(&preg_header, 4, 1);
109 write(data->fd, (uint8_t *)&preg_header,8);
111 *callbacks = talloc(ctx, struct reg_diff_callbacks);
113 (*callbacks)->add_key = reg_preg_diff_add_key;
114 (*callbacks)->del_key = reg_preg_diff_del_key;
115 (*callbacks)->set_value = reg_preg_diff_set_value;
116 (*callbacks)->del_value = reg_preg_diff_del_value;
117 (*callbacks)->del_all_values = reg_preg_diff_del_all_values;
118 (*callbacks)->done = reg_preg_diff_done;
125 _PUBLIC_ WERROR reg_preg_diff_load(int fd, const struct reg_diff_callbacks *callbacks, void *callback_data)
133 TALLOC_CTX *mem_ctx = talloc_init("reg_preg_diff_load");
136 /* Read first 8 bytes (the header) */
137 if (read(fd, &preg_header, 8) != 8) {
138 DEBUG(0, ("Could not read PReg file: %s\n",
141 return WERR_GENERAL_FAILURE;
143 if (strncmp(preg_header.hdr, "PReg", 4) != 0) {
144 DEBUG(0, ("This file is not a valid preg registry file\n"));
146 return WERR_GENERAL_FAILURE;
148 if (preg_header.version > 1) {
149 DEBUG(0, ("Warning: file format version is higher than expected.\n"));
152 /* Read the entries */
154 char *key, *value_name;
155 uint32_t value_type, length;
158 if (!W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr))) {
161 if (*buf_ptr != '[') {
162 DEBUG(0, ("Error in PReg file.\n"));
164 return WERR_GENERAL_FAILURE;
169 while (W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr)) && *buf_ptr != ';' && buf_ptr-buf < sizeof(buf)) {
172 key = talloc_asprintf(mem_ctx, "\\%s", buf);
176 while (W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr)) && *buf_ptr != ';' && buf_ptr-buf < sizeof(buf)) {
179 value_name = talloc_strdup(mem_ctx, buf);
182 if (read(fd, &value_type, 4) < 4) {
183 DEBUG(0, ("Error while reading PReg\n"));
185 return WERR_GENERAL_FAILURE;
187 /* Read past delimiter */
189 if (!(W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr)) && *buf_ptr == ';') && buf_ptr-buf < sizeof(buf)) {
190 DEBUG(0, ("Error in PReg file.\n"));
192 return WERR_GENERAL_FAILURE;
194 /* Get data length */
195 if (read(fd, &length, 4) < 4) {
196 DEBUG(0, ("Error while reading PReg\n"));
198 return WERR_GENERAL_FAILURE;
200 /* Read past delimiter */
202 if (!(W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr)) && *buf_ptr == ';') && buf_ptr-buf < sizeof(buf)) {
203 DEBUG(0, ("Error in PReg file.\n"));
205 return WERR_GENERAL_FAILURE;
209 if (length < sizeof(buf) && read(fd, buf_ptr, length) != length) {
210 DEBUG(0, ("Error while reading PReg\n"));
212 return WERR_GENERAL_FAILURE;
214 data.length = length;
215 data.data = talloc_memdup(mem_ctx, buf, length);
217 /* Check if delimiter is in place (whine if it isn't) */
219 if (!(W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr)) && *buf_ptr == ']') && buf_ptr-buf < sizeof(buf)) {
220 DEBUG(0, ("Warning: Missing ']' in PReg file, expected ']', got '%c' 0x%x.\n",*buf_ptr, *buf_ptr));
223 if (strcasecmp(value_name, "**DelVals") == 0) {
224 callbacks->del_all_values(callback_data, key);
225 } else if (strncasecmp(value_name, "**Del.",6) == 0) {
226 char *p = value_name+6;
228 callbacks->del_value(callback_data, key, p);
229 } else if (strcasecmp(value_name, "**DeleteValues") == 0) {
232 p = (char *) data.data;
234 while ((q = strchr_m(p, ';'))) {
238 callbacks->del_value(callback_data, key, p);
242 callbacks->del_value(callback_data, key, p);
243 } else if (strcasecmp(value_name, "**DeleteKeys") == 0) {
244 char *p, *q, *full_key;
246 p = (char *) data.data;
248 while ((q = strchr_m(p, ';'))) {
252 full_key = talloc_asprintf(mem_ctx, "%s\\%s", key, p);
253 callbacks->del_key(callback_data, full_key);
254 talloc_free(full_key);
258 full_key = talloc_asprintf(mem_ctx, "%s\\%s", key, p);
259 callbacks->del_key(callback_data, full_key);
260 talloc_free(full_key);
262 callbacks->add_key(callback_data, key);
263 callbacks->set_value(callback_data, key, value_name, value_type, data);
266 talloc_free(value_name);
267 talloc_free(data.data);