xref: /PHP-8.2/ext/dba/dba_qdbm.c (revision 738adce7)
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: Marcin Gibula <mg@iceni.pl>                                  |
14   +----------------------------------------------------------------------+
15 */
16 
17 #ifdef HAVE_CONFIG_H
18 #include "config.h"
19 #endif
20 
21 #include "php.h"
22 
23 #ifdef DBA_QDBM
24 #include "php_qdbm.h"
25 
26 #ifdef QDBM_INCLUDE_FILE
27 #include QDBM_INCLUDE_FILE
28 #endif
29 
30 typedef struct {
31 	DEPOT *dbf;
32 } dba_qdbm_data;
33 
DBA_OPEN_FUNC(qdbm)34 DBA_OPEN_FUNC(qdbm)
35 {
36 	DEPOT *dbf;
37 
38 	switch(info->mode) {
39 		case DBA_READER:
40 			dbf = dpopen(info->path, DP_OREADER, 0);
41 			break;
42 		case DBA_WRITER:
43 			dbf = dpopen(info->path, DP_OWRITER, 0);
44 			break;
45 		case DBA_CREAT:
46 			dbf = dpopen(info->path, DP_OWRITER | DP_OCREAT, 0);
47 			break;
48 		case DBA_TRUNC:
49 			dbf = dpopen(info->path, DP_OWRITER | DP_OCREAT | DP_OTRUNC, 0);
50 			break;
51 		default:
52 			return FAILURE;
53 	}
54 
55 	if (dbf) {
56 		info->dbf = pemalloc(sizeof(dba_qdbm_data), info->flags & DBA_PERSISTENT);
57 		memset(info->dbf, 0, sizeof(dba_qdbm_data));
58 		((dba_qdbm_data *) info->dbf)->dbf = dbf;
59 		return SUCCESS;
60 	}
61 
62 	*error = (char *) dperrmsg(dpecode);
63 	return FAILURE;
64 }
65 
DBA_CLOSE_FUNC(qdbm)66 DBA_CLOSE_FUNC(qdbm)
67 {
68 	dba_qdbm_data *dba = info->dbf;
69 
70 	dpclose(dba->dbf);
71 	pefree(dba, info->flags & DBA_PERSISTENT);
72 }
73 
DBA_FETCH_FUNC(qdbm)74 DBA_FETCH_FUNC(qdbm)
75 {
76 	dba_qdbm_data *dba = info->dbf;
77 	char *value;
78 	int value_size;
79 	zend_string *fetched_val = NULL;
80 
81 	value = dpget(dba->dbf, ZSTR_VAL(key), ZSTR_LEN(key), 0, -1, &value_size);
82 	if (value) {
83 		fetched_val = zend_string_init(value, value_size, /* persistent */ false);
84 		free(value);
85 	}
86 
87 	return fetched_val;
88 }
89 
DBA_UPDATE_FUNC(qdbm)90 DBA_UPDATE_FUNC(qdbm)
91 {
92 	dba_qdbm_data *dba = info->dbf;
93 
94 	if (dpput(dba->dbf, ZSTR_VAL(key), ZSTR_LEN(key), ZSTR_VAL(val), ZSTR_LEN(val), mode == 1 ? DP_DKEEP : DP_DOVER)) {
95 		return SUCCESS;
96 	}
97 
98 	if (dpecode != DP_EKEEP) {
99 		php_error_docref(NULL, E_WARNING, "%s", dperrmsg(dpecode));
100 	}
101 
102 	return FAILURE;
103 }
104 
DBA_EXISTS_FUNC(qdbm)105 DBA_EXISTS_FUNC(qdbm)
106 {
107 	dba_qdbm_data *dba = info->dbf;
108 	char *value;
109 
110 	value = dpget(dba->dbf, ZSTR_VAL(key), ZSTR_LEN(key), 0, -1, NULL);
111 	if (value) {
112 		free(value);
113 		return SUCCESS;
114 	}
115 
116 	return FAILURE;
117 }
118 
DBA_DELETE_FUNC(qdbm)119 DBA_DELETE_FUNC(qdbm)
120 {
121 	dba_qdbm_data *dba = info->dbf;
122 
123 	return dpout(dba->dbf, ZSTR_VAL(key), ZSTR_LEN(key)) ? SUCCESS : FAILURE;
124 }
125 
DBA_FIRSTKEY_FUNC(qdbm)126 DBA_FIRSTKEY_FUNC(qdbm)
127 {
128 	dba_qdbm_data *dba = info->dbf;
129 	int value_size;
130 	char *value;
131 	zend_string *key = NULL;
132 
133 	dpiterinit(dba->dbf);
134 
135 	value = dpiternext(dba->dbf, &value_size);
136 	if (value) {
137 		key = zend_string_init(value, value_size, /* persistent */ false);
138 		free(value);
139 	}
140 
141 	return key;
142 }
143 
DBA_NEXTKEY_FUNC(qdbm)144 DBA_NEXTKEY_FUNC(qdbm)
145 {
146 	dba_qdbm_data *dba = info->dbf;
147 	int value_size;
148 	char *value;
149 	zend_string *key = NULL;
150 
151 	value = dpiternext(dba->dbf, &value_size);
152 	if (value) {
153 		key = zend_string_init(value, value_size, /* persistent */ false);
154 		free(value);
155 	}
156 
157 	return key;
158 }
159 
DBA_OPTIMIZE_FUNC(qdbm)160 DBA_OPTIMIZE_FUNC(qdbm)
161 {
162 	dba_qdbm_data *dba = info->dbf;
163 
164 	dpoptimize(dba->dbf, 0);
165 	return SUCCESS;
166 }
167 
DBA_SYNC_FUNC(qdbm)168 DBA_SYNC_FUNC(qdbm)
169 {
170 	dba_qdbm_data *dba = info->dbf;
171 
172 	dpsync(dba->dbf);
173 	return SUCCESS;
174 }
175 
DBA_INFO_FUNC(qdbm)176 DBA_INFO_FUNC(qdbm)
177 {
178 	return estrdup(dpversion);
179 }
180 
181 #endif
182