1/*
2  +----------------------------------------------------------------------+
3  | PHP Version 7                                                        |
4  +----------------------------------------------------------------------+
5  | Copyright (c) 1997-2015 The PHP Group                                |
6  +----------------------------------------------------------------------+
7  | This source file is subject to version 3.0 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_0.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: Wez Furlong <wez@php.net>                                    |
16  +----------------------------------------------------------------------+
17*/
18
19/* $Id$ */
20
21#ifdef HAVE_CONFIG_H
22#include "config.h"
23#endif
24
25#include "php.h"
26#include "php_ini.h"
27#include "ext/standard/info.h"
28#include "pdo/php_pdo.h"
29#include "pdo/php_pdo_driver.h"
30#include "php_pdo_odbc.h"
31#include "php_pdo_odbc_int.h"
32
33/* {{{ pdo_odbc_functions[] */
34const zend_function_entry pdo_odbc_functions[] = {
35    PHP_FE_END
36};
37/* }}} */
38
39/* {{{ pdo_odbc_deps[] */
40#if ZEND_MODULE_API_NO >= 20050922
41static const zend_module_dep pdo_odbc_deps[] = {
42    ZEND_MOD_REQUIRED("pdo")
43    ZEND_MOD_END
44};
45#endif
46/* }}} */
47
48/* {{{ pdo_odbc_module_entry */
49zend_module_entry pdo_odbc_module_entry = {
50    STANDARD_MODULE_HEADER_EX, NULL,
51    pdo_odbc_deps,
52    "PDO_ODBC",
53    pdo_odbc_functions,
54    PHP_MINIT(pdo_odbc),
55    PHP_MSHUTDOWN(pdo_odbc),
56    NULL,
57    NULL,
58    PHP_MINFO(pdo_odbc),
59    PHP_PDO_ODBC_VERSION,
60    STANDARD_MODULE_PROPERTIES
61};
62/* }}} */
63
64#ifdef COMPILE_DL_PDO_ODBC
65ZEND_GET_MODULE(pdo_odbc)
66#endif
67
68#ifdef SQL_ATTR_CONNECTION_POOLING
69SQLUINTEGER pdo_odbc_pool_on = SQL_CP_OFF;
70SQLUINTEGER pdo_odbc_pool_mode = SQL_CP_ONE_PER_HENV;
71#endif
72
73#if defined(DB2CLI_VER) && !defined(PHP_WIN32)
74PHP_INI_BEGIN()
75    PHP_INI_ENTRY("pdo_odbc.db2_instance_name", NULL, PHP_INI_SYSTEM, NULL)
76PHP_INI_END()
77
78#endif
79
80/* {{{ PHP_MINIT_FUNCTION */
81PHP_MINIT_FUNCTION(pdo_odbc)
82{
83#ifdef SQL_ATTR_CONNECTION_POOLING
84    char *pooling_val = NULL;
85#endif
86
87    if (FAILURE == php_pdo_register_driver(&pdo_odbc_driver)) {
88        return FAILURE;
89    }
90
91#if defined(DB2CLI_VER) && !defined(PHP_WIN32)
92    REGISTER_INI_ENTRIES();
93    {
94        char *instance = INI_STR("pdo_odbc.db2_instance_name");
95        if (instance) {
96            char *env = malloc(sizeof("DB2INSTANCE=") + strlen(instance));
97            if (!env) {
98                return FAILURE;
99            }
100            strcpy(env, "DB2INSTANCE=");
101            strcat(env, instance);
102            putenv(env);
103            /* after this point, we can't free env without breaking the environment */
104        }
105    }
106#endif
107
108#ifdef SQL_ATTR_CONNECTION_POOLING
109    /* ugh, we don't really like .ini stuff in PDO, but since ODBC connection
110     * pooling is process wide, we can't set it from within the scope of a
111     * request without affecting others, which goes against our isolated request
112     * policy.  So, we use cfg_get_string here to check it this once.
113     * */
114    if (FAILURE == cfg_get_string("pdo_odbc.connection_pooling", &pooling_val) || pooling_val == NULL) {
115        pooling_val = "strict";
116    }
117    if (strcasecmp(pooling_val, "strict") == 0 || strcmp(pooling_val, "1") == 0) {
118        pdo_odbc_pool_on = SQL_CP_ONE_PER_HENV;
119        pdo_odbc_pool_mode = SQL_CP_STRICT_MATCH;
120    } else if (strcasecmp(pooling_val, "relaxed") == 0) {
121        pdo_odbc_pool_on = SQL_CP_ONE_PER_HENV;
122        pdo_odbc_pool_mode = SQL_CP_RELAXED_MATCH;
123    } else if (*pooling_val == '\0' || strcasecmp(pooling_val, "off") == 0) {
124        pdo_odbc_pool_on = SQL_CP_OFF;
125    } else {
126        php_error_docref(NULL, E_ERROR, "Error in pdo_odbc.connection_pooling configuration.  Value MUST be one of 'strict', 'relaxed' or 'off'");
127        return FAILURE;
128    }
129
130    if (pdo_odbc_pool_on != SQL_CP_OFF) {
131        SQLSetEnvAttr(SQL_NULL_HANDLE, SQL_ATTR_CONNECTION_POOLING, (void*)pdo_odbc_pool_on, 0);
132    }
133#endif
134
135    REGISTER_PDO_CLASS_CONST_LONG("ODBC_ATTR_USE_CURSOR_LIBRARY", PDO_ODBC_ATTR_USE_CURSOR_LIBRARY);
136    REGISTER_PDO_CLASS_CONST_LONG("ODBC_ATTR_ASSUME_UTF8", PDO_ODBC_ATTR_ASSUME_UTF8);
137    REGISTER_PDO_CLASS_CONST_LONG("ODBC_SQL_USE_IF_NEEDED", SQL_CUR_USE_IF_NEEDED);
138    REGISTER_PDO_CLASS_CONST_LONG("ODBC_SQL_USE_DRIVER", SQL_CUR_USE_DRIVER);
139    REGISTER_PDO_CLASS_CONST_LONG("ODBC_SQL_USE_ODBC", SQL_CUR_USE_ODBC);
140
141    return SUCCESS;
142}
143/* }}} */
144
145/* {{{ PHP_MSHUTDOWN_FUNCTION
146 */
147PHP_MSHUTDOWN_FUNCTION(pdo_odbc)
148{
149#if defined(DB2CLI_VER) && !defined(PHP_WIN32)
150    UNREGISTER_INI_ENTRIES();
151#endif
152    php_pdo_unregister_driver(&pdo_odbc_driver);
153    return SUCCESS;
154}
155/* }}} */
156
157/* {{{ PHP_MINFO_FUNCTION
158 */
159PHP_MINFO_FUNCTION(pdo_odbc)
160{
161    php_info_print_table_start();
162    php_info_print_table_header(2, "PDO Driver for ODBC (" PDO_ODBC_TYPE ")" , "enabled");
163#ifdef SQL_ATTR_CONNECTION_POOLING
164    php_info_print_table_row(2, "ODBC Connection Pooling",  pdo_odbc_pool_on == SQL_CP_OFF ?
165            "Disabled" : (pdo_odbc_pool_mode == SQL_CP_STRICT_MATCH ? "Enabled, strict matching" : "Enabled, relaxed matching"));
166#else
167    php_info_print_table_row(2, "ODBC Connection Pooling", "Not supported in this build");
168#endif
169    php_info_print_table_end();
170
171#if defined(DB2CLI_VER) && !defined(PHP_WIN32)
172    DISPLAY_INI_ENTRIES();
173#endif
174}
175/* }}} */
176
177/*
178 * Local variables:
179 * tab-width: 4
180 * c-basic-offset: 4
181 * End:
182 * vim600: noet sw=4 ts=4 fdm=marker
183 * vim<600: noet sw=4 ts=4
184 */
185