1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 7 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2017 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 | Author: Sascha Schumann <sascha@schumann.cx> |
16 +----------------------------------------------------------------------+
17 */
18
19 /* $Id$ */
20
21 #ifdef HAVE_CONFIG_H
22 #include "config.h"
23 #endif
24
25 #include "php.h"
26
27 #if DBA_DB3
28 #include "php_db3.h"
29 #include <sys/stat.h>
30
31 #include <string.h>
32 #ifdef DB3_INCLUDE_FILE
33 #include DB3_INCLUDE_FILE
34 #else
35 #include <db.h>
36 #endif
37
php_dba_db3_errcall_fcn(const DB_ENV * dbenv,const char * errpfx,const char * msg)38 static void php_dba_db3_errcall_fcn(
39 #if (DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 3))
40 const DB_ENV *dbenv,
41 #endif
42 const char *errpfx, const char *msg)
43 {
44
45 php_error_docref(NULL, E_NOTICE, "%s%s", errpfx?errpfx:"", msg);
46 }
47
48 #define DB3_DATA dba_db3_data *dba = info->dbf
49 #define DB3_GKEY \
50 DBT gkey; \
51 memset(&gkey, 0, sizeof(gkey)); \
52 gkey.data = (char *) key; gkey.size = keylen
53
54 typedef struct {
55 DB *dbp;
56 DBC *cursor;
57 } dba_db3_data;
58
DBA_OPEN_FUNC(db3)59 DBA_OPEN_FUNC(db3)
60 {
61 DB *dbp = NULL;
62 DBTYPE type;
63 int gmode = 0, err;
64 int filemode = 0644;
65 struct stat check_stat;
66 int s = VCWD_STAT(info->path, &check_stat);
67
68 if (!s && !check_stat.st_size) {
69 info->mode = DBA_TRUNC; /* force truncate */
70 }
71
72 type = info->mode == DBA_READER ? DB_UNKNOWN :
73 info->mode == DBA_TRUNC ? DB_BTREE :
74 s ? DB_BTREE : DB_UNKNOWN;
75
76 gmode = info->mode == DBA_READER ? DB_RDONLY :
77 (info->mode == DBA_CREAT && s) ? DB_CREATE :
78 (info->mode == DBA_CREAT && !s) ? 0 :
79 info->mode == DBA_WRITER ? 0 :
80 info->mode == DBA_TRUNC ? DB_CREATE | DB_TRUNCATE : -1;
81
82 if (gmode == -1) {
83 return FAILURE; /* not possible */
84 }
85
86 if (info->argc > 0) {
87 convert_to_long_ex(&info->argv[0]);
88 filemode = Z_LVAL(info->argv[0]);
89 }
90
91 #ifdef DB_FCNTL_LOCKING
92 gmode |= DB_FCNTL_LOCKING;
93 #endif
94
95 if ((err=db_create(&dbp, NULL, 0)) == 0) {
96 dbp->set_errcall(dbp, php_dba_db3_errcall_fcn);
97 if(
98 #if (DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 1))
99 (err=dbp->open(dbp, 0, info->path, NULL, type, gmode, filemode)) == 0) {
100 #else
101 (err=dbp->open(dbp, info->path, NULL, type, gmode, filemode)) == 0) {
102 #endif
103 dba_db3_data *data;
104
105 data = pemalloc(sizeof(*data), info->flags&DBA_PERSISTENT);
106 data->dbp = dbp;
107 data->cursor = NULL;
108 info->dbf = data;
109
110 return SUCCESS;
111 } else {
112 dbp->close(dbp, 0);
113 *error = db_strerror(err);
114 }
115 } else {
116 *error = db_strerror(err);
117 }
118
119 return FAILURE;
120 }
121
122 DBA_CLOSE_FUNC(db3)
123 {
124 DB3_DATA;
125
126 if (dba->cursor) dba->cursor->c_close(dba->cursor);
127 dba->dbp->close(dba->dbp, 0);
128 pefree(dba, info->flags&DBA_PERSISTENT);
129 }
130
131 DBA_FETCH_FUNC(db3)
132 {
133 DBT gval;
134 char *new = NULL;
135 DB3_DATA;
136 DB3_GKEY;
137
138 memset(&gval, 0, sizeof(gval));
139 if (!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
140 if (newlen) *newlen = gval.size;
141 new = estrndup(gval.data, gval.size);
142 }
143 return new;
144 }
145
146 DBA_UPDATE_FUNC(db3)
147 {
148 DBT gval;
149 DB3_DATA;
150 DB3_GKEY;
151
152 memset(&gval, 0, sizeof(gval));
153 gval.data = (char *) val;
154 gval.size = vallen;
155
156 if (!dba->dbp->put(dba->dbp, NULL, &gkey, &gval,
157 mode == 1 ? DB_NOOVERWRITE : 0)) {
158 return SUCCESS;
159 }
160 return FAILURE;
161 }
162
163 DBA_EXISTS_FUNC(db3)
164 {
165 DBT gval;
166 DB3_DATA;
167 DB3_GKEY;
168
169 memset(&gval, 0, sizeof(gval));
170 if (!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
171 return SUCCESS;
172 }
173 return FAILURE;
174 }
175
176 DBA_DELETE_FUNC(db3)
177 {
178 DB3_DATA;
179 DB3_GKEY;
180
181 return dba->dbp->del(dba->dbp, NULL, &gkey, 0) ? FAILURE : SUCCESS;
182 }
183
184 DBA_FIRSTKEY_FUNC(db3)
185 {
186 DB3_DATA;
187
188 if (dba->cursor) {
189 dba->cursor->c_close(dba->cursor);
190 }
191
192 dba->cursor = NULL;
193 if (dba->dbp->cursor(dba->dbp, NULL, &dba->cursor, 0) != 0) {
194 return NULL;
195 }
196
197 /* we should introduce something like PARAM_PASSTHRU... */
198 return dba_nextkey_db3(info, newlen);
199 }
200
201 DBA_NEXTKEY_FUNC(db3)
202 {
203 DB3_DATA;
204 DBT gkey, gval;
205 char *nkey = NULL;
206
207 memset(&gkey, 0, sizeof(gkey));
208 memset(&gval, 0, sizeof(gval));
209
210 if (dba->cursor->c_get(dba->cursor, &gkey, &gval, DB_NEXT) == 0) {
211 if (gkey.data) {
212 nkey = estrndup(gkey.data, gkey.size);
213 if (newlen) *newlen = gkey.size;
214 }
215 }
216
217 return nkey;
218 }
219
220 DBA_OPTIMIZE_FUNC(db3)
221 {
222 return SUCCESS;
223 }
224
225 DBA_SYNC_FUNC(db3)
226 {
227 DB3_DATA;
228
229 return dba->dbp->sync(dba->dbp, 0) ? FAILURE : SUCCESS;
230 }
231
232 DBA_INFO_FUNC(db3)
233 {
234 return estrdup(DB_VERSION_STRING);
235 }
236
237 #endif
238
239 /*
240 * Local variables:
241 * tab-width: 4
242 * c-basic-offset: 4
243 * End:
244 * vim600: sw=4 ts=4 fdm=marker
245 * vim<600: sw=4 ts=4
246 */
247
