source: branches/samba-3.2.x/source/libgpo/gpo_ini.c

Last change on this file was 133, checked in by Paul Smedley, 17 years ago

Update trunk to 3.2.0pre3
File size: 5.5 KB
Line 
1/*
2 * Unix SMB/CIFS implementation.
3 * Group Policy Support
4 * Copyright (C) Guenther Deschner 2007
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include "includes.h"
21#include "gpo_ini.h"
22
23/****************************************************************
24****************************************************************/
25
26static int gp_inifile_free_context(struct gp_inifile_context *ctx)
27{
28 if (!ctx) {
29 return 0;
30 }
31
32 if (ctx->generated_filename) {
33 unlink(ctx->generated_filename);
34 ctx->generated_filename = NULL;
35 }
36
37 if (ctx->dict) {
38 iniparser_freedict(ctx->dict);
39 ctx->dict = NULL;
40 }
41
42 ctx = NULL;
43
44 return 0;
45}
46
47/****************************************************************
48****************************************************************/
49
50static NTSTATUS convert_file_from_ucs2(TALLOC_CTX *mem_ctx,
51 const char *filename_in,
52 char **filename_out)
53{
54 int tmp_fd = -1;
55 uint8 *data_in = NULL;
56 uint8 *data_out = NULL;
57 char *tmp_name = NULL;
58 NTSTATUS status;
59 size_t n = 0;
60
61 if (!filename_out) {
62 return NT_STATUS_INVALID_PARAMETER;
63 }
64
65 data_in = (uint8 *)file_load(filename_in, &n, 0);
66 if (!data_in) {
67 status = NT_STATUS_NO_SUCH_FILE;
68 goto out;
69 }
70
71 tmp_name = talloc_asprintf(mem_ctx, "%s/convert_file_from_ucs2.XXXXXX",
72 tmpdir());
73 if (!tmp_name) {
74 status = NT_STATUS_NO_MEMORY;
75 goto out;
76 }
77
78 tmp_fd = smb_mkstemp(tmp_name);
79 if (tmp_fd == -1) {
80 status = NT_STATUS_ACCESS_DENIED;
81 goto out;
82 }
83
84 n = convert_string_talloc(mem_ctx, CH_UTF16LE, CH_UNIX,
85 data_in, n, &data_out, False);
86
87 if (n == -1) {
88 status = NT_STATUS_INVALID_BUFFER_SIZE;
89 goto out;
90 }
91
92 /* skip utf8 BOM */
93 DEBUG(11,("convert_file_from_ucs2: "
94 "data_out[0]: 0x%x, data_out[1]: 0x%x, data_out[2]: 0x%x\n",
95 data_out[0], data_out[1], data_out[2]));
96
97 if ((data_out[0] == 0xef) && (data_out[1] == 0xbb) &&
98 (data_out[2] == 0xbf)) {
99 DEBUG(11,("convert_file_from_ucs2: "
100 "%s skipping utf8 BOM\n", tmp_name));
101 data_out += 3;
102 n -= 3;
103 }
104
105 if (sys_write(tmp_fd, data_out, n) != n) {
106 status = map_nt_error_from_unix(errno);
107 goto out;
108 }
109
110 *filename_out = tmp_name;
111
112 status = NT_STATUS_OK;
113
114 out:
115 if (tmp_fd != -1) {
116 close(tmp_fd);
117 }
118
119 SAFE_FREE(data_in);
120
121 return status;
122}
123
124/****************************************************************
125****************************************************************/
126
127 NTSTATUS gp_inifile_init_context(TALLOC_CTX *mem_ctx,
128 uint32_t flags,
129 const char *unix_path,
130 const char *suffix,
131 struct gp_inifile_context **ctx_ret)
132{
133 struct gp_inifile_context *ctx = NULL;
134 NTSTATUS status;
135 dictionary *dict = NULL;
136 char *tmp_filename = NULL;
137 const char *ini_filename = NULL;
138
139 if (!unix_path || !ctx_ret) {
140 return NT_STATUS_INVALID_PARAMETER;
141 }
142
143 ctx = TALLOC_ZERO_P(mem_ctx, struct gp_inifile_context);
144 NT_STATUS_HAVE_NO_MEMORY(ctx);
145
146 talloc_set_destructor(ctx, gp_inifile_free_context);
147
148 status = gp_find_file(mem_ctx, flags, unix_path, suffix,
149 &ini_filename);
150
151 if (!NT_STATUS_IS_OK(status)) {
152 goto failed;
153 }
154
155 status = convert_file_from_ucs2(mem_ctx, ini_filename,
156 &tmp_filename);
157 if (!NT_STATUS_IS_OK(status)) {
158 goto failed;
159 }
160
161 dict = iniparser_load(tmp_filename);
162 if (!dict) {
163 status = NT_STATUS_NO_SUCH_FILE;
164 goto failed;
165 }
166
167 ctx->generated_filename = tmp_filename;
168 ctx->dict = dict;
169 ctx->mem_ctx = mem_ctx;
170
171 *ctx_ret = ctx;
172
173 return NT_STATUS_OK;
174
175 failed:
176
177 DEBUG(1,("gp_inifile_init_context failed: %s\n",
178 nt_errstr(status)));
179
180 TALLOC_FREE(ctx);
181
182 return status;
183}
184
185/****************************************************************
186 parse the local gpt.ini file
187****************************************************************/
188
189#define GPT_INI_SECTION_GENERAL "General"
190#define GPT_INI_PARAMETER_VERSION "Version"
191#define GPT_INI_PARAMETER_DISPLAYNAME "displayName"
192
193NTSTATUS parse_gpt_ini(TALLOC_CTX *mem_ctx,
194 const char *filename,
195 uint32_t *version,
196 char **display_name)
197{
198 NTSTATUS result;
199 uint32_t v = 0;
200 char *name = NULL;
201 dictionary *dict = NULL;
202
203 if (!filename) {
204 return NT_STATUS_INVALID_PARAMETER;
205 }
206
207 dict = iniparser_load(filename);
208 if (!dict) {
209 return NT_STATUS_NO_SUCH_FILE;
210 }
211
212 if ((name = iniparser_getstring(dict, GPT_INI_SECTION_GENERAL
213 ":"GPT_INI_PARAMETER_DISPLAYNAME, NULL)) == NULL) {
214 /* the default domain policy and the default domain controller
215 * policy never have a displayname in their gpt.ini file */
216 DEBUG(10,("parse_gpt_ini: no name in %s\n", filename));
217 }
218
219 if (name && display_name) {
220 *display_name = talloc_strdup(mem_ctx, name);
221 if (*display_name == NULL) {
222 result = NT_STATUS_NO_MEMORY;
223 goto out;
224 }
225 }
226
227 if ((v = iniparser_getint(dict, GPT_INI_SECTION_GENERAL
228 ":"GPT_INI_PARAMETER_VERSION, Undefined)) == Undefined) {
229 DEBUG(10,("parse_gpt_ini: no version\n"));
230 result = NT_STATUS_INTERNAL_DB_CORRUPTION;
231 goto out;
232 }
233
234 if (version) {
235 *version = v;
236 }
237
238 result = NT_STATUS_OK;
239 out:
240 if (dict) {
241 iniparser_freedict(dict);
242 }
243
244 return result;
245}
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