1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 7 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2018 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
46 #if (DB_VERSION_MAJOR == 5 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR == 8))
47 /* Bug 51086, Berkeley DB 4.8.26 */
48 /* This code suppresses a BDB 4.8+ error message, thus keeping PHP test compatibility */
49 {
50 const char *function = get_active_function_name();
51 if (function && (!strcmp(function,"dba_popen") || !strcmp(function,"dba_open"))
52 && (!strncmp(msg, "fop_read_meta", sizeof("fop_read_meta")-1)
53 || !strncmp(msg, "BDB0004 fop_read_meta", sizeof("BDB0004 fop_read_meta")-1))) {
54 return;
55 }
56 }
57 #endif
58
59 php_error_docref(NULL, E_NOTICE, "%s%s", errpfx?errpfx:"", msg);
60 }
61
62 #define DB4_DATA dba_db4_data *dba = info->dbf
63 #define DB4_GKEY \
64 DBT gkey; \
65 memset(&gkey, 0, sizeof(gkey)); \
66 gkey.data = (char *) key; gkey.size = keylen
67
68 typedef struct {
69 DB *dbp;
70 DBC *cursor;
71 } dba_db4_data;
72
DBA_OPEN_FUNC(db4)73 DBA_OPEN_FUNC(db4)
74 {
75 DB *dbp = NULL;
76 DBTYPE type;
77 int gmode = 0, err;
78 int filemode = 0644;
79 struct stat check_stat;
80 int s = VCWD_STAT(info->path, &check_stat);
81
82 #if (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR <= 7) /* Bug 51086 */
83 if (!s && !check_stat.st_size) {
84 info->mode = DBA_TRUNC; /* force truncate */
85 }
86
87 type = info->mode == DBA_READER ? DB_UNKNOWN :
88 info->mode == DBA_TRUNC ? DB_BTREE :
89 s ? DB_BTREE : DB_UNKNOWN;
90
91 gmode = info->mode == DBA_READER ? DB_RDONLY :
92 (info->mode == DBA_CREAT && s) ? DB_CREATE :
93 (info->mode == DBA_CREAT && !s) ? 0 :
94 info->mode == DBA_WRITER ? 0 :
95 info->mode == DBA_TRUNC ? DB_CREATE | DB_TRUNCATE : -1;
96 #else
97 if (!s && !check_stat.st_size) {
98 info->mode = DBA_CREAT; /* force creation */
99 }
100
101 type = info->mode == DBA_READER ? DB_UNKNOWN :
102 (info->mode == DBA_TRUNC || info->mode == DBA_CREAT) ? DB_BTREE :
103 s ? DB_BTREE : DB_UNKNOWN;
104
105 gmode = info->mode == DBA_READER ? DB_RDONLY :
106 info->mode == DBA_CREAT ? DB_CREATE :
107 info->mode == DBA_WRITER ? 0 :
108 info->mode == DBA_TRUNC ? DB_CREATE | DB_TRUNCATE : -1;
109 #endif
110
111 if (gmode == -1) {
112 return FAILURE; /* not possible */
113 }
114
115 if (info->flags & DBA_PERSISTENT) {
116 gmode |= DB_THREAD;
117 }
118
119 if (info->argc > 0) {
120 convert_to_long_ex(&info->argv[0]);
121 filemode = Z_LVAL(info->argv[0]);
122 }
123
124 if ((err=db_create(&dbp, NULL, 0)) == 0) {
125 dbp->set_errcall(dbp, php_dba_db4_errcall_fcn);
126 if (
127 #if (DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 1))
128 (err=dbp->open(dbp, 0, info->path, NULL, type, gmode, filemode)) == 0) {
129 #else
130 (err=dbp->open(dbp, info->path, NULL, type, gmode, filemode)) == 0) {
131 #endif
132 dba_db4_data *data;
133
134 data = pemalloc(sizeof(*data), info->flags&DBA_PERSISTENT);
135 data->dbp = dbp;
136 data->cursor = NULL;
137 info->dbf = data;
138
139 return SUCCESS;
140 } else {
141 dbp->close(dbp, 0);
142 *error = db_strerror(err);
143 }
144 } else {
145 *error = db_strerror(err);
146 }
147
148 return FAILURE;
149 }
150
151 DBA_CLOSE_FUNC(db4)
152 {
153 DB4_DATA;
154
155 if (dba->cursor) dba->cursor->c_close(dba->cursor);
156 dba->dbp->close(dba->dbp, 0);
157 pefree(dba, info->flags&DBA_PERSISTENT);
158 }
159
160 DBA_FETCH_FUNC(db4)
161 {
162 DBT gval;
163 char *new = NULL;
164 DB4_DATA;
165 DB4_GKEY;
166
167 memset(&gval, 0, sizeof(gval));
168 if (info->flags & DBA_PERSISTENT) {
169 gval.flags |= DB_DBT_MALLOC;
170 }
171 if (!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
172 if (newlen) *newlen = gval.size;
173 new = estrndup(gval.data, gval.size);
174 if (info->flags & DBA_PERSISTENT) {
175 free(gval.data);
176 }
177 }
178 return new;
179 }
180
181 DBA_UPDATE_FUNC(db4)
182 {
183 DBT gval;
184 DB4_DATA;
185 DB4_GKEY;
186
187 memset(&gval, 0, sizeof(gval));
188 gval.data = (char *) val;
189 gval.size = vallen;
190
191 if (!dba->dbp->put(dba->dbp, NULL, &gkey, &gval,
192 mode == 1 ? DB_NOOVERWRITE : 0)) {
193 return SUCCESS;
194 }
195 return FAILURE;
196 }
197
198 DBA_EXISTS_FUNC(db4)
199 {
200 DBT gval;
201 DB4_DATA;
202 DB4_GKEY;
203
204 memset(&gval, 0, sizeof(gval));
205
206 if (info->flags & DBA_PERSISTENT) {
207 gval.flags |= DB_DBT_MALLOC;
208 }
209
210 if (!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
211 if (info->flags & DBA_PERSISTENT) {
212 free(gval.data);
213 }
214 return SUCCESS;
215 }
216 return FAILURE;
217 }
218
219 DBA_DELETE_FUNC(db4)
220 {
221 DB4_DATA;
222 DB4_GKEY;
223
224 return dba->dbp->del(dba->dbp, NULL, &gkey, 0) ? FAILURE : SUCCESS;
225 }
226
227 DBA_FIRSTKEY_FUNC(db4)
228 {
229 DB4_DATA;
230
231 if (dba->cursor) {
232 dba->cursor->c_close(dba->cursor);
233 }
234
235 dba->cursor = NULL;
236 if (dba->dbp->cursor(dba->dbp, NULL, &dba->cursor, 0) != 0) {
237 return NULL;
238 }
239
240 /* we should introduce something like PARAM_PASSTHRU... */
241 return dba_nextkey_db4(info, newlen);
242 }
243
244 DBA_NEXTKEY_FUNC(db4)
245 {
246 DB4_DATA;
247 DBT gkey, gval;
248 char *nkey = NULL;
249
250 memset(&gkey, 0, sizeof(gkey));
251 memset(&gval, 0, sizeof(gval));
252
253 if (info->flags & DBA_PERSISTENT) {
254 gkey.flags |= DB_DBT_MALLOC;
255 gval.flags |= DB_DBT_MALLOC;
256 }
257 if (dba->cursor && dba->cursor->c_get(dba->cursor, &gkey, &gval, DB_NEXT) == 0) {
258 if (gkey.data) {
259 nkey = estrndup(gkey.data, gkey.size);
260 if (newlen) *newlen = gkey.size;
261 }
262 if (info->flags & DBA_PERSISTENT) {
263 if (gkey.data) {
264 free(gkey.data);
265 }
266 if (gval.data) {
267 free(gval.data);
268 }
269 }
270 }
271
272 return nkey;
273 }
274
275 DBA_OPTIMIZE_FUNC(db4)
276 {
277 return SUCCESS;
278 }
279
280 DBA_SYNC_FUNC(db4)
281 {
282 DB4_DATA;
283
284 return dba->dbp->sync(dba->dbp, 0) ? FAILURE : SUCCESS;
285 }
286
287 DBA_INFO_FUNC(db4)
288 {
289 return estrdup(DB_VERSION_STRING);
290 }
291
292 #endif
293
294 /*
295 * Local variables:
296 * tab-width: 4
297 * c-basic-offset: 4
298 * End:
299 * vim600: sw=4 ts=4 fdm=marker
300 * vim<600: sw=4 ts=4
301 */
302
