1 /*
2 +----------------------------------------------------------------------+
3 | Copyright (c) The PHP Group |
4 +----------------------------------------------------------------------+
5 | This source file is subject to version 3.01 of the PHP license, |
6 | that is bundled with this package in the file LICENSE, and is |
7 | available through the world-wide-web at the following url: |
8 | https://www.php.net/license/3_01.txt |
9 | If you did not receive a copy of the PHP license and are unable to |
10 | obtain it through the world-wide-web, please send a note to |
11 | license@php.net so we can mail you a copy immediately. |
12 +----------------------------------------------------------------------+
13 | Author: Sascha Schumann <sascha@schumann.cx> |
14 +----------------------------------------------------------------------+
15 */
16
17 #ifdef HAVE_CONFIG_H
18 #include "config.h"
19 #endif
20
21 #include "php.h"
22
23 #if DBA_DB3
24 #include "php_db3.h"
25 #include <sys/stat.h>
26
27 #include <string.h>
28 #ifdef DB3_INCLUDE_FILE
29 #include DB3_INCLUDE_FILE
30 #else
31 #include <db.h>
32 #endif
33
php_dba_db3_errcall_fcn(const DB_ENV * dbenv,const char * errpfx,const char * msg)34 static void php_dba_db3_errcall_fcn(
35 #if (DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 3))
36 const DB_ENV *dbenv,
37 #endif
38 const char *errpfx, const char *msg)
39 {
40
41 php_error_docref(NULL, E_NOTICE, "%s%s", errpfx?errpfx:"", msg);
42 }
43
44 #define DB3_DATA dba_db3_data *dba = info->dbf
45 #define DB3_GKEY \
46 DBT gkey; \
47 memset(&gkey, 0, sizeof(gkey)); \
48 gkey.data = (char *) key; gkey.size = keylen
49
50 typedef struct {
51 DB *dbp;
52 DBC *cursor;
53 } dba_db3_data;
54
DBA_OPEN_FUNC(db3)55 DBA_OPEN_FUNC(db3)
56 {
57 DB *dbp = NULL;
58 DBTYPE type;
59 int gmode = 0, err;
60 int filemode = 0644;
61 struct stat check_stat;
62 int s = VCWD_STAT(info->path, &check_stat);
63
64 if (!s && !check_stat.st_size) {
65 info->mode = DBA_TRUNC; /* force truncate */
66 }
67
68 type = info->mode == DBA_READER ? DB_UNKNOWN :
69 info->mode == DBA_TRUNC ? DB_BTREE :
70 s ? DB_BTREE : DB_UNKNOWN;
71
72 gmode = info->mode == DBA_READER ? DB_RDONLY :
73 (info->mode == DBA_CREAT && s) ? DB_CREATE :
74 (info->mode == DBA_CREAT && !s) ? 0 :
75 info->mode == DBA_WRITER ? 0 :
76 info->mode == DBA_TRUNC ? DB_CREATE | DB_TRUNCATE : -1;
77
78 if (gmode == -1) {
79 return FAILURE; /* not possible */
80 }
81
82 if (info->argc > 0) {
83 filemode = zval_get_long(&info->argv[0]);
84 }
85
86 #ifdef DB_FCNTL_LOCKING
87 gmode |= DB_FCNTL_LOCKING;
88 #endif
89
90 if ((err=db_create(&dbp, NULL, 0)) == 0) {
91 dbp->set_errcall(dbp, php_dba_db3_errcall_fcn);
92 if(
93 #if (DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 1))
94 (err=dbp->open(dbp, 0, info->path, NULL, type, gmode, filemode)) == 0) {
95 #else
96 (err=dbp->open(dbp, info->path, NULL, type, gmode, filemode)) == 0) {
97 #endif
98 dba_db3_data *data;
99
100 data = pemalloc(sizeof(*data), info->flags&DBA_PERSISTENT);
101 data->dbp = dbp;
102 data->cursor = NULL;
103 info->dbf = data;
104
105 return SUCCESS;
106 } else {
107 dbp->close(dbp, 0);
108 *error = db_strerror(err);
109 }
110 } else {
111 *error = db_strerror(err);
112 }
113
114 return FAILURE;
115 }
116
117 DBA_CLOSE_FUNC(db3)
118 {
119 DB3_DATA;
120
121 if (dba->cursor) dba->cursor->c_close(dba->cursor);
122 dba->dbp->close(dba->dbp, 0);
123 pefree(dba, info->flags&DBA_PERSISTENT);
124 }
125
126 DBA_FETCH_FUNC(db3)
127 {
128 DBT gval;
129 char *new = NULL;
130 DB3_DATA;
131 DB3_GKEY;
132
133 memset(&gval, 0, sizeof(gval));
134 if (!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
135 if (newlen) *newlen = gval.size;
136 new = estrndup(gval.data, gval.size);
137 }
138 return new;
139 }
140
141 DBA_UPDATE_FUNC(db3)
142 {
143 DBT gval;
144 DB3_DATA;
145 DB3_GKEY;
146
147 memset(&gval, 0, sizeof(gval));
148 gval.data = (char *) val;
149 gval.size = vallen;
150
151 if (!dba->dbp->put(dba->dbp, NULL, &gkey, &gval,
152 mode == 1 ? DB_NOOVERWRITE : 0)) {
153 return SUCCESS;
154 }
155 return FAILURE;
156 }
157
158 DBA_EXISTS_FUNC(db3)
159 {
160 DBT gval;
161 DB3_DATA;
162 DB3_GKEY;
163
164 memset(&gval, 0, sizeof(gval));
165 if (!dba->dbp->get(dba->dbp, NULL, &gkey, &gval, 0)) {
166 return SUCCESS;
167 }
168 return FAILURE;
169 }
170
171 DBA_DELETE_FUNC(db3)
172 {
173 DB3_DATA;
174 DB3_GKEY;
175
176 return dba->dbp->del(dba->dbp, NULL, &gkey, 0) ? FAILURE : SUCCESS;
177 }
178
179 DBA_FIRSTKEY_FUNC(db3)
180 {
181 DB3_DATA;
182
183 if (dba->cursor) {
184 dba->cursor->c_close(dba->cursor);
185 }
186
187 dba->cursor = NULL;
188 if (dba->dbp->cursor(dba->dbp, NULL, &dba->cursor, 0) != 0) {
189 return NULL;
190 }
191
192 /* we should introduce something like PARAM_PASSTHRU... */
193 return dba_nextkey_db3(info, newlen);
194 }
195
196 DBA_NEXTKEY_FUNC(db3)
197 {
198 DB3_DATA;
199 DBT gkey, gval;
200 char *nkey = NULL;
201
202 memset(&gkey, 0, sizeof(gkey));
203 memset(&gval, 0, sizeof(gval));
204
205 if (dba->cursor->c_get(dba->cursor, &gkey, &gval, DB_NEXT) == 0) {
206 if (gkey.data) {
207 nkey = estrndup(gkey.data, gkey.size);
208 if (newlen) *newlen = gkey.size;
209 }
210 }
211
212 return nkey;
213 }
214
215 DBA_OPTIMIZE_FUNC(db3)
216 {
217 return SUCCESS;
218 }
219
220 DBA_SYNC_FUNC(db3)
221 {
222 DB3_DATA;
223
224 return dba->dbp->sync(dba->dbp, 0) ? FAILURE : SUCCESS;
225 }
226
227 DBA_INFO_FUNC(db3)
228 {
229 return estrdup(DB_VERSION_STRING);
230 }
231
232 #endif
233
