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