mirror of
https://github.com/php/php-src.git
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434 lines
10 KiB
C
434 lines
10 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2014 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: Wez Furlong <wez@php.net> |
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| Marcus Boerger <helly@php.net> |
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| Sterling Hughes <sterling@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <ctype.h>
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#include "php.h"
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#include "php_ini.h"
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#include "ext/standard/info.h"
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#include "php_pdo.h"
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#include "php_pdo_driver.h"
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#include "php_pdo_int.h"
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#include "zend_exceptions.h"
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static zend_class_entry *spl_ce_RuntimeException;
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ZEND_DECLARE_MODULE_GLOBALS(pdo)
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static PHP_GINIT_FUNCTION(pdo);
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/* True global resources - no need for thread safety here */
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/* the registry of PDO drivers */
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HashTable pdo_driver_hash;
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/* we use persistent resources for the driver connection stuff */
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static int le_ppdo;
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int php_pdo_list_entry(void)
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{
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return le_ppdo;
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}
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/* for exceptional circumstances */
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zend_class_entry *pdo_exception_ce;
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PDO_API zend_class_entry *php_pdo_get_dbh_ce(void)
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{
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return pdo_dbh_ce;
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}
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PDO_API zend_class_entry *php_pdo_get_exception(void)
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{
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return pdo_exception_ce;
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}
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PDO_API char *php_pdo_str_tolower_dup(const char *src, int len)
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{
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char *dest = emalloc(len + 1);
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zend_str_tolower_copy(dest, src, len);
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return dest;
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}
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PDO_API zend_class_entry *php_pdo_get_exception_base(int root TSRMLS_DC)
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{
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#if can_handle_soft_dependency_on_SPL && defined(HAVE_SPL) && ((PHP_MAJOR_VERSION > 5) || (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 1))
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if (!root) {
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if (!spl_ce_RuntimeException) {
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zend_class_entry **pce;
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if (zend_hash_find(CG(class_table), "runtimeexception", sizeof("RuntimeException"), (void **) &pce) == SUCCESS) {
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spl_ce_RuntimeException = *pce;
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return *pce;
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}
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} else {
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return spl_ce_RuntimeException;
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}
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}
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#endif
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#if (PHP_MAJOR_VERSION == 5) && (PHP_MINOR_VERSION < 2)
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return zend_exception_get_default();
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#else
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return zend_exception_get_default(TSRMLS_C);
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#endif
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}
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zend_class_entry *pdo_dbh_ce, *pdo_dbstmt_ce, *pdo_row_ce;
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/* {{{ proto array pdo_drivers()
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Return array of available PDO drivers */
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PHP_FUNCTION(pdo_drivers)
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{
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HashPosition pos;
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pdo_driver_t **pdriver;
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if (zend_parse_parameters_none() == FAILURE) {
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return;
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}
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array_init(return_value);
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zend_hash_internal_pointer_reset_ex(&pdo_driver_hash, &pos);
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while (SUCCESS == zend_hash_get_current_data_ex(&pdo_driver_hash, (void**)&pdriver, &pos)) {
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add_next_index_stringl(return_value, (char*)(*pdriver)->driver_name, (*pdriver)->driver_name_len, 1);
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zend_hash_move_forward_ex(&pdo_driver_hash, &pos);
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}
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}
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/* }}} */
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/* {{{ arginfo */
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ZEND_BEGIN_ARG_INFO(arginfo_pdo_drivers, 0)
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ZEND_END_ARG_INFO()
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/* }}} */
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/* {{{ pdo_functions[] */
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const zend_function_entry pdo_functions[] = {
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PHP_FE(pdo_drivers, arginfo_pdo_drivers)
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PHP_FE_END
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};
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/* }}} */
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/* {{{ pdo_functions[] */
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#if ZEND_MODULE_API_NO >= 20050922
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static const zend_module_dep pdo_deps[] = {
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#ifdef HAVE_SPL
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ZEND_MOD_REQUIRED("spl")
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#endif
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ZEND_MOD_END
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};
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#endif
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/* }}} */
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/* {{{ pdo_module_entry */
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zend_module_entry pdo_module_entry = {
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#if ZEND_MODULE_API_NO >= 20050922
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STANDARD_MODULE_HEADER_EX, NULL,
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pdo_deps,
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#else
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STANDARD_MODULE_HEADER,
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#endif
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"PDO",
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pdo_functions,
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PHP_MINIT(pdo),
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PHP_MSHUTDOWN(pdo),
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NULL,
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NULL,
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PHP_MINFO(pdo),
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"1.0.4dev",
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PHP_MODULE_GLOBALS(pdo),
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PHP_GINIT(pdo),
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NULL,
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NULL,
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STANDARD_MODULE_PROPERTIES_EX
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};
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/* }}} */
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/* TODO: visit persistent handles: for each persistent statement handle,
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* remove bound parameter associations */
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#ifdef COMPILE_DL_PDO
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ZEND_GET_MODULE(pdo)
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#endif
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/* {{{ PHP_GINIT_FUNCTION */
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static PHP_GINIT_FUNCTION(pdo)
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{
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pdo_globals->global_value = 0;
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}
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/* }}} */
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PDO_API int php_pdo_register_driver(pdo_driver_t *driver)
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{
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if (driver->api_version != PDO_DRIVER_API) {
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zend_error(E_ERROR, "PDO: driver %s requires PDO API version %ld; this is PDO version %d",
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driver->driver_name, driver->api_version, PDO_DRIVER_API);
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return FAILURE;
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}
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if (!zend_hash_exists(&module_registry, "pdo", sizeof("pdo"))) {
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zend_error(E_ERROR, "You MUST load PDO before loading any PDO drivers");
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return FAILURE; /* NOTREACHED */
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}
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return zend_hash_add(&pdo_driver_hash, (char*)driver->driver_name, driver->driver_name_len,
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(void**)&driver, sizeof(pdo_driver_t *), NULL);
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}
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PDO_API void php_pdo_unregister_driver(pdo_driver_t *driver)
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{
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if (!zend_hash_exists(&module_registry, "pdo", sizeof("pdo"))) {
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return;
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}
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zend_hash_del(&pdo_driver_hash, (char*)driver->driver_name, driver->driver_name_len);
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}
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pdo_driver_t *pdo_find_driver(const char *name, int namelen)
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{
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pdo_driver_t **driver = NULL;
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zend_hash_find(&pdo_driver_hash, (char*)name, namelen, (void**)&driver);
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return driver ? *driver : NULL;
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}
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PDO_API int php_pdo_parse_data_source(const char *data_source,
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unsigned long data_source_len, struct pdo_data_src_parser *parsed,
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int nparams)
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{
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int i, j;
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int valstart = -1;
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int semi = -1;
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int optstart = 0;
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int nlen;
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int n_matches = 0;
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int n_semicolumns = 0;
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i = 0;
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while (i < data_source_len) {
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/* looking for NAME= */
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if (data_source[i] == '\0') {
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break;
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}
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if (data_source[i] != '=') {
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++i;
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continue;
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}
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valstart = ++i;
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/* now we're looking for VALUE; or just VALUE<NUL> */
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semi = -1;
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n_semicolumns = 0;
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while (i < data_source_len) {
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if (data_source[i] == '\0') {
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semi = i++;
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break;
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}
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if (data_source[i] == ';') {
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if ((i + 1 >= data_source_len) || data_source[i+1] != ';') {
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semi = i++;
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break;
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} else {
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n_semicolumns++;
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i += 2;
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continue;
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}
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}
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++i;
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}
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if (semi == -1) {
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semi = i;
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}
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/* find the entry in the array */
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nlen = valstart - optstart - 1;
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for (j = 0; j < nparams; j++) {
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if (0 == strncmp(data_source + optstart, parsed[j].optname, nlen) && parsed[j].optname[nlen] == '\0') {
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/* got a match */
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if (parsed[j].freeme) {
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efree(parsed[j].optval);
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}
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if (n_semicolumns == 0) {
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parsed[j].optval = estrndup(data_source + valstart, semi - valstart - n_semicolumns);
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} else {
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int vlen = semi - valstart;
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const char *orig_val = data_source + valstart;
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char *new_val = (char *) emalloc(vlen - n_semicolumns + 1);
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parsed[j].optval = new_val;
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while (vlen && *orig_val) {
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*new_val = *orig_val;
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new_val++;
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if (*orig_val == ';') {
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orig_val+=2;
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vlen-=2;
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} else {
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orig_val++;
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vlen--;
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}
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}
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*new_val = '\0';
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}
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parsed[j].freeme = 1;
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++n_matches;
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break;
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}
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}
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while (i < data_source_len && isspace(data_source[i])) {
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i++;
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}
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optstart = i;
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}
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return n_matches;
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}
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static const char digit_vec[] = "0123456789";
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PDO_API char *php_pdo_int64_to_str(pdo_int64_t i64 TSRMLS_DC)
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{
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char buffer[65];
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char outbuf[65] = "";
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register char *p;
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long long_val;
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char *dst = outbuf;
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if (i64 < 0) {
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i64 = -i64;
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*dst++ = '-';
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}
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if (i64 == 0) {
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*dst++ = '0';
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*dst++ = '\0';
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return estrdup(outbuf);
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}
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p = &buffer[sizeof(buffer)-1];
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*p = '\0';
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while ((pdo_uint64_t)i64 > (pdo_uint64_t)LONG_MAX) {
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pdo_uint64_t quo = (pdo_uint64_t)i64 / (unsigned int)10;
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unsigned int rem = (unsigned int)(i64 - quo*10U);
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*--p = digit_vec[rem];
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i64 = (pdo_int64_t)quo;
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}
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long_val = (long)i64;
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while (long_val != 0) {
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long quo = long_val / 10;
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*--p = digit_vec[(unsigned int)(long_val - quo * 10)];
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long_val = quo;
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}
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while ((*dst++ = *p++) != 0)
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;
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*dst = '\0';
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return estrdup(outbuf);
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}
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/* {{{ PHP_MINIT_FUNCTION */
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PHP_MINIT_FUNCTION(pdo)
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{
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zend_class_entry ce;
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spl_ce_RuntimeException = NULL;
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if (FAILURE == pdo_sqlstate_init_error_table()) {
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return FAILURE;
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}
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zend_hash_init(&pdo_driver_hash, 0, NULL, NULL, 1);
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le_ppdo = zend_register_list_destructors_ex(NULL, php_pdo_pdbh_dtor,
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"PDO persistent database", module_number);
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INIT_CLASS_ENTRY(ce, "PDOException", NULL);
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pdo_exception_ce = zend_register_internal_class_ex(&ce, php_pdo_get_exception_base(0 TSRMLS_CC), NULL TSRMLS_CC);
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zend_declare_property_null(pdo_exception_ce, "errorInfo", sizeof("errorInfo")-1, ZEND_ACC_PUBLIC TSRMLS_CC);
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pdo_dbh_init(TSRMLS_C);
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pdo_stmt_init(TSRMLS_C);
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return SUCCESS;
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}
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/* }}} */
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/* {{{ PHP_MSHUTDOWN_FUNCTION */
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PHP_MSHUTDOWN_FUNCTION(pdo)
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{
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zend_hash_destroy(&pdo_driver_hash);
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pdo_sqlstate_fini_error_table();
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return SUCCESS;
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}
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/* }}} */
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/* {{{ PHP_MINFO_FUNCTION */
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PHP_MINFO_FUNCTION(pdo)
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{
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HashPosition pos;
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char *drivers = NULL, *ldrivers = estrdup("");
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pdo_driver_t **pdriver;
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php_info_print_table_start();
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php_info_print_table_header(2, "PDO support", "enabled");
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zend_hash_internal_pointer_reset_ex(&pdo_driver_hash, &pos);
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while (SUCCESS == zend_hash_get_current_data_ex(&pdo_driver_hash, (void**)&pdriver, &pos)) {
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spprintf(&drivers, 0, "%s, %s", ldrivers, (*pdriver)->driver_name);
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zend_hash_move_forward_ex(&pdo_driver_hash, &pos);
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efree(ldrivers);
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ldrivers = drivers;
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}
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php_info_print_table_row(2, "PDO drivers", drivers ? drivers+2 : "");
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if (drivers) {
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efree(drivers);
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} else {
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efree(ldrivers);
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}
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php_info_print_table_end();
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}
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/* }}} */
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: noet sw=4 ts=4 fdm=marker
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* vim<600: noet sw=4 ts=4
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*/
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