1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2016 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Marcus Boerger <helly@php.net> |
16 | Sascha Schumann <sascha@schumann.cx> |
17 +----------------------------------------------------------------------+
18 */
19
20 /* $Id$ */
21
22 #ifdef HAVE_CONFIG_H
23 #include "config.h"
24 #endif
25
26 #include "php.h"
27
28 #if DBA_DB4
29 #include "php_db4.h"
30 #include <sys/stat.h>
31
32 #include <string.h>
33 #ifdef DB4_INCLUDE_FILE
34 #include DB4_INCLUDE_FILE
35 #else
36 #include <db.h>
37 #endif
38
php_dba_db4_errcall_fcn(const DB_ENV * dbenv,const char * errpfx,const char * msg)39 static void php_dba_db4_errcall_fcn(
40 #if (DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 3))
41 const DB_ENV *dbenv,
42 #endif
43 const char *errpfx, const char *msg)
44 {
45 TSRMLS_FETCH();
46
47 #if (DB_VERSION_MAJOR == 5 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR == 8))
48 /* Bug 51086, Berkeley DB 4.8.26 */
49 /* This code suppresses a BDB 4.8+ error message, thus keeping PHP test compatibility */
50 {
51 const char *function = get_active_function_name(TSRMLS_C);
52 if (function && (!strcmp(function,"dba_popen") || !strcmp(function,"dba_open"))
53 && (!strncmp(msg, "fop_read_meta", sizeof("fop_read_meta")-1)
54 || !strncmp(msg, "BDB0004 fop_read_meta", sizeof("BDB0004 fop_read_meta")-1))) {
55 return;
56 }
57 }
58 #endif
59
60 php_error_docref(NULL TSRMLS_CC, E_NOTICE, "%s%s", errpfx?errpfx:"", msg);
61 }
62
63 #define DB4_DATA dba_db4_data *dba = info->dbf
64 #define DB4_GKEY \
65 DBT gkey; \
66 memset(&gkey, 0, sizeof(gkey)); \
67 gkey.data = (char *) key; gkey.size = keylen
68
69 typedef struct {
70 DB *dbp;
71 DBC *cursor;
72 } dba_db4_data;
73
DBA_OPEN_FUNC(db4)74 DBA_OPEN_FUNC(db4)
75 {
76 DB *dbp = NULL;
77 DBTYPE type;
78 int gmode = 0, err;
79 int filemode = 0644;
80 struct stat check_stat;
81 int s = VCWD_STAT(info->path, &check_stat);
82
83 #if (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR <= 7) /* Bug 51086 */
84 if (!s && !check_stat.st_size) {
85 info->mode = DBA_TRUNC; /* force truncate */
86 }
87
88 type = info->mode == DBA_READER ? DB_UNKNOWN :
89 info->mode == DBA_TRUNC ? DB_BTREE :
90 s ? DB_BTREE : DB_UNKNOWN;
91
92 gmode = info->mode == DBA_READER ? DB_RDONLY :
93 (info->mode == DBA_CREAT && s) ? DB_CREATE :
94 (info->mode == DBA_CREAT && !s) ? 0 :
95 info->mode == DBA_WRITER ? 0 :
96 info->mode == DBA_TRUNC ? DB_CREATE | DB_TRUNCATE : -1;
97 #else
98 if (!s && !check_stat.st_size) {
99 info->mode = DBA_CREAT; /* force creation */
100 }
101
102 type = info->mode == DBA_READER ? DB_UNKNOWN :
103 (info->mode == DBA_TRUNC || info->mode == DBA_CREAT) ? DB_BTREE :
104 s ? DB_BTREE : DB_UNKNOWN;
105
106 gmode = info->mode == DBA_READER ? DB_RDONLY :
107 info->mode == DBA_CREAT ? DB_CREATE :
108 info->mode == DBA_WRITER ? 0 :
109 info->mode == DBA_TRUNC ? DB_CREATE | DB_TRUNCATE : -1;
110 #endif
111
112 if (gmode == -1) {
113 return FAILURE; /* not possible */
114 }
115
116 if (info->flags & DBA_PERSISTENT) {
117 gmode |= DB_THREAD;
118 }
119
120 if (info->argc > 0) {
121 convert_to_long_ex(info->argv[0]);
122 filemode = Z_LVAL_PP(info->argv[0]);
123 }
124
125 if ((err=db_create(&dbp, NULL, 0)) == 0) {
126 dbp->set_errcall(dbp, php_dba_db4_errcall_fcn);
127 if (
128 #if (DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 1))
129 (err=dbp->open(dbp, 0, info->path, NULL, type, gmode, filemode)) == 0) {
130 #else
131 (err=dbp->open(dbp, info->path, NULL, type, gmode, filemode)) == 0) {
132 #endif
133 dba_db4_data *data;
134
135 data = pemalloc(sizeof(*data), info->flags&DBA_PERSISTENT);
136 data->dbp = dbp;
137 data->cursor = NULL;
138 info->dbf = data;
139
140 return SUCCESS;
141 } else {
142 dbp->close(dbp, 0);
143 *error = db_strerror(err);
144 }
145 } else {
146 *error = db_strerror(err);
147 }
148
149 return FAILURE;
150 }
151
152 DBA_CLOSE_FUNC(db4)
153 {
154 DB4_DATA;
155
156 if (dba->cursor) dba->cursor->c_close(dba->cursor);
157 dba->dbp->close(dba->dbp, 0);
158 pefree(dba, info->flags&DBA_PERSISTENT);
159 }
160
161 DBA_FETCH_FUNC(db4)
162 {
163 DBT gval;
164 char *new = NULL;
165 DB4_DATA;
166 DB4_GKEY;
167
168 memset(&gval, 0, sizeof(gval));
169 if (info->flags & DBA_PERSISTENT) {
170 gval.flags |= DB_DBT_MALLOC;
171 }
172 if (!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
173 if (newlen) *newlen = gval.size;
174 new = estrndup(gval.data, gval.size);
175 if (info->flags & DBA_PERSISTENT) {
176 free(gval.data);
177 }
178 }
179 return new;
180 }
181
182 DBA_UPDATE_FUNC(db4)
183 {
184 DBT gval;
185 DB4_DATA;
186 DB4_GKEY;
187
188 memset(&gval, 0, sizeof(gval));
189 gval.data = (char *) val;
190 gval.size = vallen;
191
192 if (!dba->dbp->put(dba->dbp, NULL, &gkey, &gval,
193 mode == 1 ? DB_NOOVERWRITE : 0)) {
194 return SUCCESS;
195 }
196 return FAILURE;
197 }
198
199 DBA_EXISTS_FUNC(db4)
200 {
201 DBT gval;
202 DB4_DATA;
203 DB4_GKEY;
204
205 memset(&gval, 0, sizeof(gval));
206
207 if (info->flags & DBA_PERSISTENT) {
208 gval.flags |= DB_DBT_MALLOC;
209 }
210
211 if (!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
212 if (info->flags & DBA_PERSISTENT) {
213 free(gval.data);
214 }
215 return SUCCESS;
216 }
217 return FAILURE;
218 }
219
220 DBA_DELETE_FUNC(db4)
221 {
222 DB4_DATA;
223 DB4_GKEY;
224
225 return dba->dbp->del(dba->dbp, NULL, &gkey, 0) ? FAILURE : SUCCESS;
226 }
227
228 DBA_FIRSTKEY_FUNC(db4)
229 {
230 DB4_DATA;
231
232 if (dba->cursor) {
233 dba->cursor->c_close(dba->cursor);
234 }
235
236 dba->cursor = NULL;
237 if (dba->dbp->cursor(dba->dbp, NULL, &dba->cursor, 0) != 0) {
238 return NULL;
239 }
240
241 /* we should introduce something like PARAM_PASSTHRU... */
242 return dba_nextkey_db4(info, newlen TSRMLS_CC);
243 }
244
245 DBA_NEXTKEY_FUNC(db4)
246 {
247 DB4_DATA;
248 DBT gkey, gval;
249 char *nkey = NULL;
250
251 memset(&gkey, 0, sizeof(gkey));
252 memset(&gval, 0, sizeof(gval));
253
254 if (info->flags & DBA_PERSISTENT) {
255 gkey.flags |= DB_DBT_MALLOC;
256 gval.flags |= DB_DBT_MALLOC;
257 }
258 if (dba->cursor && dba->cursor->c_get(dba->cursor, &gkey, &gval, DB_NEXT) == 0) {
259 if (gkey.data) {
260 nkey = estrndup(gkey.data, gkey.size);
261 if (newlen) *newlen = gkey.size;
262 }
263 if (info->flags & DBA_PERSISTENT) {
264 if (gkey.data) {
265 free(gkey.data);
266 }
267 if (gval.data) {
268 free(gval.data);
269 }
270 }
271 }
272
273 return nkey;
274 }
275
276 DBA_OPTIMIZE_FUNC(db4)
277 {
278 return SUCCESS;
279 }
280
281 DBA_SYNC_FUNC(db4)
282 {
283 DB4_DATA;
284
285 return dba->dbp->sync(dba->dbp, 0) ? FAILURE : SUCCESS;
286 }
287
288 DBA_INFO_FUNC(db4)
289 {
290 return estrdup(DB_VERSION_STRING);
291 }
292
293 #endif
294
295 /*
296 * Local variables:
297 * tab-width: 4
298 * c-basic-offset: 4
299 * End:
300 * vim600: sw=4 ts=4 fdm=marker
301 * vim<600: sw=4 ts=4
302 */
303
