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php_mssql.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2010 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Frank M. Kromann <frank@kromann.info> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef COMPILE_DL_MSSQL
#define HAVE_MSSQL 1
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_globals.h"
#include "ext/standard/php_standard.h"
#include "ext/standard/info.h"
#include "php_mssql.h"
#include "php_ini.h"
#if HAVE_MSSQL
#define SAFE_STRING(s) ((s)?(s):"")
#define MSSQL_ASSOC 1<<0
#define MSSQL_NUM 1<<1
#define MSSQL_BOTH (MSSQL_ASSOC|MSSQL_NUM)
static int le_result, le_link, le_plink, le_statement;
static void php_mssql_get_column_content_with_type(mssql_link *mssql_ptr,int offset,zval *result, int column_type TSRMLS_DC);
static void php_mssql_get_column_content_without_type(mssql_link *mssql_ptr,int offset,zval *result, int column_type TSRMLS_DC);
static void _mssql_bind_hash_dtor(void *data);
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_connect, 0, 0, 0)
ZEND_ARG_INFO(0, servername)
ZEND_ARG_INFO(0, username)
ZEND_ARG_INFO(0, password)
ZEND_ARG_INFO(0, newlink)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_close, 0, 0, 0)
ZEND_ARG_INFO(0, link_identifier)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_select_db, 0, 0, 1)
ZEND_ARG_INFO(0, database_name)
ZEND_ARG_INFO(0, link_identifier)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_query, 0, 0, 1)
ZEND_ARG_INFO(0, query)
ZEND_ARG_INFO(0, link_identifier)
ZEND_ARG_INFO(0, batch_size)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_fetch_batch, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_rows_affected, 0, 0, 1)
ZEND_ARG_INFO(0, link_identifier)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_mssql_get_last_message, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_fetch_field, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_ARG_INFO(0, field_offset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_fetch_array, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_ARG_INFO(0, result_type)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_fetch_assoc, 0, 0, 1)
ZEND_ARG_INFO(0, result_id)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_field_length, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_ARG_INFO(0, offset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_data_seek, 0, 0, 2)
ZEND_ARG_INFO(0, result_identifier)
ZEND_ARG_INFO(0, row_number)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_result, 0, 0, 3)
ZEND_ARG_INFO(0, result)
ZEND_ARG_INFO(0, row)
ZEND_ARG_INFO(0, field)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_min_error_severity, 0, 0, 1)
ZEND_ARG_INFO(0, severity)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_init, 0, 0, 1)
ZEND_ARG_INFO(0, sp_name)
ZEND_ARG_INFO(0, link_identifier)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_bind, 0, 0, 4)
ZEND_ARG_INFO(0, stmt)
ZEND_ARG_INFO(0, param_name)
ZEND_ARG_INFO(1, var)
ZEND_ARG_INFO(0, type)
ZEND_ARG_INFO(0, is_output)
ZEND_ARG_INFO(0, is_null)
ZEND_ARG_INFO(0, maxlen)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_execute, 0, 0, 1)
ZEND_ARG_INFO(0, stmt)
ZEND_ARG_INFO(0, skip_results)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_free_statement, 0, 0, 1)
ZEND_ARG_INFO(0, stmt)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mssql_guid_string, 0, 0, 1)
ZEND_ARG_INFO(0, binary)
ZEND_ARG_INFO(0, short_format)
ZEND_END_ARG_INFO()
/* }}} */
/* {{{ mssql_functions
*/
const zend_function_entry mssql_functions[] = {
PHP_FE(mssql_connect, arginfo_mssql_connect)
PHP_FE(mssql_pconnect, arginfo_mssql_connect)
PHP_FE(mssql_close, arginfo_mssql_close)
PHP_FE(mssql_select_db, arginfo_mssql_select_db)
PHP_FE(mssql_query, arginfo_mssql_query)
PHP_FE(mssql_fetch_batch, arginfo_mssql_fetch_batch)
PHP_FE(mssql_rows_affected, arginfo_mssql_rows_affected)
PHP_FE(mssql_free_result, arginfo_mssql_fetch_batch)
PHP_FE(mssql_get_last_message, arginfo_mssql_get_last_message)
PHP_FE(mssql_num_rows, arginfo_mssql_fetch_batch)
PHP_FE(mssql_num_fields, arginfo_mssql_fetch_batch)
PHP_FE(mssql_fetch_field, arginfo_mssql_fetch_field)
PHP_FE(mssql_fetch_row, arginfo_mssql_fetch_batch)
PHP_FE(mssql_fetch_array, arginfo_mssql_fetch_array)
PHP_FE(mssql_fetch_assoc, arginfo_mssql_fetch_assoc)
PHP_FE(mssql_fetch_object, arginfo_mssql_fetch_batch)
PHP_FE(mssql_field_length, arginfo_mssql_field_length)
PHP_FE(mssql_field_name, arginfo_mssql_field_length)
PHP_FE(mssql_field_type, arginfo_mssql_field_length)
PHP_FE(mssql_data_seek, arginfo_mssql_data_seek)
PHP_FE(mssql_field_seek, arginfo_mssql_fetch_field)
PHP_FE(mssql_result, arginfo_mssql_result)
PHP_FE(mssql_next_result, arginfo_mssql_fetch_assoc)
PHP_FE(mssql_min_error_severity, arginfo_mssql_min_error_severity)
PHP_FE(mssql_min_message_severity, arginfo_mssql_min_error_severity)
PHP_FE(mssql_init, arginfo_mssql_init)
PHP_FE(mssql_bind, arginfo_mssql_bind)
PHP_FE(mssql_execute, arginfo_mssql_execute)
PHP_FE(mssql_free_statement, arginfo_mssql_free_statement)
PHP_FE(mssql_guid_string, arginfo_mssql_guid_string)
{NULL, NULL, NULL}
};
/* }}} */
ZEND_DECLARE_MODULE_GLOBALS(mssql)
static PHP_GINIT_FUNCTION(mssql);
/* {{{ mssql_module_entry
*/
zend_module_entry mssql_module_entry =
{
STANDARD_MODULE_HEADER,
"mssql",
mssql_functions,
PHP_MINIT(mssql),
PHP_MSHUTDOWN(mssql),
PHP_RINIT(mssql),
PHP_RSHUTDOWN(mssql),
PHP_MINFO(mssql),
NO_VERSION_YET,
PHP_MODULE_GLOBALS(mssql),
PHP_GINIT(mssql),
NULL,
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */
#ifdef COMPILE_DL_MSSQL
ZEND_GET_MODULE(mssql)
#endif
#define CHECK_LINK(link) { if (link==-1) { php_error_docref(NULL TSRMLS_CC, E_WARNING, "A link to the server could not be established"); RETURN_FALSE; } }
/* {{{ PHP_INI_DISP
*/
static PHP_INI_DISP(display_text_size)
{
char *value;
TSRMLS_FETCH();
if (type == PHP_INI_DISPLAY_ORIG && ini_entry->modified) {
value = ini_entry->orig_value;
} else if (ini_entry->value) {
value = ini_entry->value;
} else {
value = NULL;
}
if (atoi(value) == -1) {
PUTS("Server default");
} else {
php_printf("%s", value);
}
}
/* }}} */
/* {{{ PHP_INI
*/
PHP_INI_BEGIN()
STD_PHP_INI_BOOLEAN("mssql.allow_persistent", "1", PHP_INI_SYSTEM, OnUpdateBool, allow_persistent, zend_mssql_globals, mssql_globals)
STD_PHP_INI_ENTRY_EX("mssql.max_persistent", "-1", PHP_INI_SYSTEM, OnUpdateLong, max_persistent, zend_mssql_globals, mssql_globals, display_link_numbers)
STD_PHP_INI_ENTRY_EX("mssql.max_links", "-1", PHP_INI_SYSTEM, OnUpdateLong, max_links, zend_mssql_globals, mssql_globals, display_link_numbers)
STD_PHP_INI_ENTRY_EX("mssql.min_error_severity", "10", PHP_INI_ALL, OnUpdateLong, cfg_min_error_severity, zend_mssql_globals, mssql_globals, display_link_numbers)
STD_PHP_INI_ENTRY_EX("mssql.min_message_severity", "10", PHP_INI_ALL, OnUpdateLong, cfg_min_message_severity, zend_mssql_globals, mssql_globals, display_link_numbers)
STD_PHP_INI_BOOLEAN("mssql.compatability_mode", "0", PHP_INI_ALL, OnUpdateBool, compatability_mode, zend_mssql_globals, mssql_globals)
STD_PHP_INI_ENTRY_EX("mssql.connect_timeout", "5", PHP_INI_ALL, OnUpdateLong, connect_timeout, zend_mssql_globals, mssql_globals, display_link_numbers)
STD_PHP_INI_ENTRY_EX("mssql.timeout", "60", PHP_INI_ALL, OnUpdateLong, timeout, zend_mssql_globals, mssql_globals, display_link_numbers)
STD_PHP_INI_ENTRY_EX("mssql.textsize", "-1", PHP_INI_ALL, OnUpdateLong, textsize, zend_mssql_globals, mssql_globals, display_text_size)
STD_PHP_INI_ENTRY_EX("mssql.textlimit", "-1", PHP_INI_ALL, OnUpdateLong, textlimit, zend_mssql_globals, mssql_globals, display_text_size)
STD_PHP_INI_ENTRY_EX("mssql.batchsize", "0", PHP_INI_ALL, OnUpdateLong, batchsize, zend_mssql_globals, mssql_globals, display_link_numbers)
STD_PHP_INI_BOOLEAN("mssql.datetimeconvert", "1", PHP_INI_ALL, OnUpdateBool, datetimeconvert, zend_mssql_globals, mssql_globals)
STD_PHP_INI_BOOLEAN("mssql.secure_connection", "0", PHP_INI_SYSTEM, OnUpdateBool, secure_connection, zend_mssql_globals, mssql_globals)
STD_PHP_INI_ENTRY_EX("mssql.max_procs", "-1", PHP_INI_ALL, OnUpdateLong, max_procs, zend_mssql_globals, mssql_globals, display_link_numbers)
#ifdef HAVE_FREETDS
STD_PHP_INI_ENTRY("mssql.charset", "", PHP_INI_ALL, OnUpdateString, charset, zend_mssql_globals, mssql_globals)
#endif
PHP_INI_END()
/* }}} */
/* error handler */
static int php_mssql_error_handler(DBPROCESS *dbproc, int severity, int dberr, int oserr, char *dberrstr, char *oserrstr)
{
TSRMLS_FETCH();
if (severity >= MS_SQL_G(min_error_severity)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s (severity %d)", dberrstr, severity);
}
return INT_CANCEL;
}
/* {{{ php_mssql_message_handler
*/
/* message handler */
static int php_mssql_message_handler(DBPROCESS *dbproc, DBINT msgno,int msgstate, int severity,char *msgtext,char *srvname, char *procname,DBUSMALLINT line)
{
TSRMLS_FETCH();
if (severity >= MS_SQL_G(min_message_severity)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "message: %s (severity %d)", msgtext, severity);
}
if (MS_SQL_G(server_message)) {
STR_FREE(MS_SQL_G(server_message));
MS_SQL_G(server_message) = NULL;
}
MS_SQL_G(server_message) = estrdup(msgtext);
return 0;
}
/* }}} */
/* {{{ _clean_invalid_results
*/
static int _clean_invalid_results(zend_rsrc_list_entry *le TSRMLS_DC)
{
if (Z_TYPE_P(le) == le_result) {
mssql_link *mssql_ptr = ((mssql_result *) le->ptr)->mssql_ptr;
if (!mssql_ptr->valid) {
return 1;
}
}
return 0;
}
/* }}} */
/* {{{ _free_result
*/
static void _free_result(mssql_result *result, int free_fields)
{
int i,j;
if (result->data) {
for (i=0; i<result->num_rows; i++) {
if (result->data[i]) {
for (j=0; j<result->num_fields; j++) {
zval_dtor(&result->data[i][j]);
}
efree(result->data[i]);
}
}
efree(result->data);
result->data = NULL;
result->blocks_initialized = 0;
}
if (free_fields && result->fields) {
for (i=0; i<result->num_fields; i++) {
STR_FREE(result->fields[i].name);
STR_FREE(result->fields[i].column_source);
}
efree(result->fields);
}
}
/* }}} */
/* {{{ _free_mssql_statement
*/
static void _free_mssql_statement(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
mssql_statement *statement = (mssql_statement *)rsrc->ptr;
if (statement->binds) {
zend_hash_destroy(statement->binds);
efree(statement->binds);
}
efree(statement);
}
/* }}} */
/* {{{ _free_mssql_result
*/
static void _free_mssql_result(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
mssql_result *result = (mssql_result *)rsrc->ptr;
_free_result(result, 1);
dbcancel(result->mssql_ptr->link);
efree(result);
}
/* }}} */
/* {{{ php_mssql_set_defaullt_link
*/
static void php_mssql_set_default_link(int id TSRMLS_DC)
{
if (MS_SQL_G(default_link)!=-1) {
zend_list_delete(MS_SQL_G(default_link));
}
MS_SQL_G(default_link) = id;
zend_list_addref(id);
}
/* }}} */
/* {{{ _close_mssql_link
*/
static void _close_mssql_link(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
mssql_link *mssql_ptr = (mssql_link *)rsrc->ptr;
mssql_ptr->valid = 0;
zend_hash_apply(&EG(regular_list),(apply_func_t) _clean_invalid_results TSRMLS_CC);
dbclose(mssql_ptr->link);
dbfreelogin(mssql_ptr->login);
efree(mssql_ptr);
MS_SQL_G(num_links)--;
}
/* }}} */
/* {{{ _close_mssql_plink
*/
static void _close_mssql_plink(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
mssql_link *mssql_ptr = (mssql_link *)rsrc->ptr;
dbclose(mssql_ptr->link);
dbfreelogin(mssql_ptr->login);
free(mssql_ptr);
MS_SQL_G(num_persistent)--;
MS_SQL_G(num_links)--;
}
/* }}} */
/* {{{ _mssql_bind_hash_dtor
*/
static void _mssql_bind_hash_dtor(void *data)
{
mssql_bind *bind= (mssql_bind *) data;
zval_ptr_dtor(&(bind->zval));
}
/* }}} */
/* {{{ PHP_GINIT_FUNCTION
*/
static PHP_GINIT_FUNCTION(mssql)
{
long compatability_mode;
mssql_globals->num_persistent = 0;
mssql_globals->get_column_content = php_mssql_get_column_content_with_type;
if (cfg_get_long("mssql.compatability_mode", &compatability_mode) == SUCCESS) {
if (compatability_mode) {
mssql_globals->get_column_content = php_mssql_get_column_content_without_type;
}
}
}
/* }}} */
/* {{{ PHP_MINIT_FUNCTION
*/
PHP_MINIT_FUNCTION(mssql)
{
REGISTER_INI_ENTRIES();
le_statement = zend_register_list_destructors_ex(_free_mssql_statement, NULL, "mssql statement", module_number);
le_result = zend_register_list_destructors_ex(_free_mssql_result, NULL, "mssql result", module_number);
le_link = zend_register_list_destructors_ex(_close_mssql_link, NULL, "mssql link", module_number);
le_plink = zend_register_list_destructors_ex(NULL, _close_mssql_plink, "mssql link persistent", module_number);
Z_TYPE(mssql_module_entry) = type;
if (dbinit()==FAIL) {
return FAILURE;
}
/* BEGIN MSSQL data types for mssql_bind */
REGISTER_LONG_CONSTANT("MSSQL_ASSOC", MSSQL_ASSOC, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MSSQL_NUM", MSSQL_NUM, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MSSQL_BOTH", MSSQL_BOTH, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SQLTEXT",SQLTEXT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SQLVARCHAR",SQLVARCHAR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SQLCHAR",SQLCHAR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SQLINT1",SQLINT1, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SQLINT2",SQLINT2, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SQLINT4",SQLINT4, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SQLBIT",SQLBIT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SQLFLT4",SQLFLT4, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SQLFLT8",SQLFLT8, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SQLFLTN",SQLFLTN, CONST_CS | CONST_PERSISTENT);
/* END MSSQL data types for mssql_bind */
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION
*/
PHP_MSHUTDOWN_FUNCTION(mssql)
{
UNREGISTER_INI_ENTRIES();
#ifndef HAVE_FREETDS
dbwinexit();
#else
dbexit();
#endif
return SUCCESS;
}
/* }}} */
/* {{{ PHP_RINIT_FUNCTION
*/
PHP_RINIT_FUNCTION(mssql)
{
MS_SQL_G(default_link) = -1;
MS_SQL_G(num_links) = MS_SQL_G(num_persistent);
MS_SQL_G(appname) = estrndup("PHP 5", 5);
MS_SQL_G(server_message) = NULL;
MS_SQL_G(min_error_severity) = MS_SQL_G(cfg_min_error_severity);
MS_SQL_G(min_message_severity) = MS_SQL_G(cfg_min_message_severity);
if (MS_SQL_G(connect_timeout) < 1) MS_SQL_G(connect_timeout) = 1;
if (MS_SQL_G(timeout) < 0) MS_SQL_G(timeout) = 60;
if (MS_SQL_G(max_procs) != -1) {
dbsetmaxprocs((TDS_SHORT)MS_SQL_G(max_procs));
}
return SUCCESS;
}
/* }}} */
/* {{{ PHP_RSHUTDOWN_FUNCTION
*/
PHP_RSHUTDOWN_FUNCTION(mssql)
{
STR_FREE(MS_SQL_G(appname));
MS_SQL_G(appname) = NULL;
if (MS_SQL_G(server_message)) {
STR_FREE(MS_SQL_G(server_message));
MS_SQL_G(server_message) = NULL;
}
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION
*/
PHP_MINFO_FUNCTION(mssql)
{
char buf[32];
php_info_print_table_start();
php_info_print_table_header(2, "MSSQL Support", "enabled");
snprintf(buf, sizeof(buf), "%ld", MS_SQL_G(num_persistent));
php_info_print_table_row(2, "Active Persistent Links", buf);
snprintf(buf, sizeof(buf), "%ld", MS_SQL_G(num_links));
php_info_print_table_row(2, "Active Links", buf);
php_info_print_table_row(2, "Library version", MSSQL_VERSION);
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* }}} */
/* {{{ php_mssql_do_connect
*/
static void php_mssql_do_connect(INTERNAL_FUNCTION_PARAMETERS, int persistent)
{
char *host = NULL, *user = NULL, *passwd = NULL;
int host_len = 0, user_len = 0, passwd_len = 0;
zend_bool new_link = 0;
char *hashed_details;
int hashed_details_length;
mssql_link mssql, *mssql_ptr;
char buffer[40];
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|sssb", &host, &host_len, &user, &user_len, &passwd, &passwd_len, &new_link) == FAILURE) {
return;
}
/* Limit strings to 255 chars to prevent overflow issues in underlying libraries */
if(host_len>255) {
host[255] = '\0';
}
if(user_len>255) {
user[255] = '\0';
}
if(passwd_len>255) {
passwd[255] = '\0';
}
switch(ZEND_NUM_ARGS())
{
case 0:
/* defaults */
hashed_details_length=5+3;
hashed_details = (char *) emalloc(hashed_details_length+1);
strcpy(hashed_details, "mssql___");
break;
case 1:
hashed_details_length = spprintf(&hashed_details, 0, "mssql_%s__", host);
break;
case 2:
hashed_details_length = spprintf(&hashed_details, 0, "mssql_%s_%s_", host, user);
break;
case 3:
case 4:
hashed_details_length = spprintf(&hashed_details, 0, "mssql_%s_%s_%s", host, user, passwd);
break;
}
if (hashed_details == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Out of memory");
RETURN_FALSE;
}
dbsetlogintime(MS_SQL_G(connect_timeout));
dbsettime(MS_SQL_G(timeout));
/* set a DBLOGIN record */
if ((mssql.login = dblogin()) == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to allocate login record");
RETURN_FALSE;
}
DBERRHANDLE(mssql.login, (EHANDLEFUNC) php_mssql_error_handler);
DBMSGHANDLE(mssql.login, (MHANDLEFUNC) php_mssql_message_handler);
#ifndef HAVE_FREETDS
if (MS_SQL_G(secure_connection)){
DBSETLSECURE(mssql.login);
}
else {
#endif
if (user) {
DBSETLUSER(mssql.login,user);
}
if (passwd) {
DBSETLPWD(mssql.login,passwd);
}
#ifndef HAVE_FREETDS
}
#endif
#ifdef HAVE_FREETDS
if (MS_SQL_G(charset) && strlen(MS_SQL_G(charset))) {
DBSETLCHARSET(mssql.login, MS_SQL_G(charset));
}
#endif
DBSETLAPP(mssql.login,MS_SQL_G(appname));
mssql.valid = 1;
#ifndef HAVE_FREETDS
DBSETLVERSION(mssql.login, DBVER60);
#endif
/* DBSETLTIME(mssql.login, TIMEOUT_INFINITE); */
if (!MS_SQL_G(allow_persistent)) {
persistent=0;
}
if (persistent) {
zend_rsrc_list_entry *le;
/* try to find if we already have this link in our persistent list */
if (new_link || zend_hash_find(&EG(persistent_list), hashed_details, hashed_details_length + 1, (void **) &le)==FAILURE) { /* we don't */
zend_rsrc_list_entry new_le;
if (MS_SQL_G(max_links) != -1 && MS_SQL_G(num_links) >= MS_SQL_G(max_links)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Too many open links (%ld)", MS_SQL_G(num_links));
efree(hashed_details);
dbfreelogin(mssql.login);
RETURN_FALSE;
}
if (MS_SQL_G(max_persistent) != -1 && MS_SQL_G(num_persistent) >= MS_SQL_G(max_persistent)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Too many open persistent links (%ld)", MS_SQL_G(num_persistent));
efree(hashed_details);
dbfreelogin(mssql.login);
RETURN_FALSE;
}
/* create the link */
if ((mssql.link = dbopen(mssql.login, host)) == FAIL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to connect to server: %s", (host == NULL ? "" : host));
efree(hashed_details);
dbfreelogin(mssql.login);
RETURN_FALSE;
}
if (DBSETOPT(mssql.link, DBBUFFER, "2")==FAIL) {
efree(hashed_details);
dbfreelogin(mssql.login);
dbclose(mssql.link);
RETURN_FALSE;
}
#ifndef HAVE_FREETDS
if (MS_SQL_G(textlimit) != -1) {
snprintf(buffer, sizeof(buffer), "%li", MS_SQL_G(textlimit));
if (DBSETOPT(mssql.link, DBTEXTLIMIT, buffer)==FAIL) {
efree(hashed_details);
dbfreelogin(mssql.login);
dbclose(mssql.link);
RETURN_FALSE;
}
}
#endif
if (MS_SQL_G(textsize) != -1) {
snprintf(buffer, sizeof(buffer), "SET TEXTSIZE %li", MS_SQL_G(textsize));
dbcmd(mssql.link, buffer);
dbsqlexec(mssql.link);
dbresults(mssql.link);
}
/* hash it up */
mssql_ptr = (mssql_link *) malloc(sizeof(mssql_link));
memcpy(mssql_ptr, &mssql, sizeof(mssql_link));
Z_TYPE(new_le) = le_plink;
new_le.ptr = mssql_ptr;
if (zend_hash_update(&EG(persistent_list), hashed_details, hashed_details_length + 1, &new_le, sizeof(zend_rsrc_list_entry), NULL)==FAILURE) {
free(mssql_ptr);
efree(hashed_details);
dbfreelogin(mssql.login);
dbclose(mssql.link);
RETURN_FALSE;
}
MS_SQL_G(num_persistent)++;
MS_SQL_G(num_links)++;
} else { /* we do */
if (Z_TYPE_P(le) != le_plink) {
#if BROKEN_MSSQL_PCONNECTS
log_error("PHP/MS SQL: Hashed persistent link is not a MS SQL link!",php_rqst->server);
#endif
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Hashed persistent link is not a MS SQL link!");
efree(hashed_details);
RETURN_FALSE;
}
mssql_ptr = (mssql_link *) le->ptr;
/* test that the link hasn't died */
if (DBDEAD(mssql_ptr->link) == TRUE) {
dbclose(mssql_ptr->link);
#if BROKEN_MSSQL_PCONNECTS
log_error("PHP/MS SQL: Persistent link died, trying to reconnect...",php_rqst->server);
#endif
if ((mssql_ptr->link=dbopen(mssql_ptr->login,host))==NULL) {
#if BROKEN_MSSQL_PCONNECTS
log_error("PHP/MS SQL: Unable to reconnect!",php_rqst->server);
#endif
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Link to server lost, unable to reconnect");
zend_hash_del(&EG(persistent_list), hashed_details, hashed_details_length+1);
efree(hashed_details);
dbfreelogin(mssql_ptr->login);
RETURN_FALSE;
}
#if BROKEN_MSSQL_PCONNECTS
log_error("PHP/MS SQL: Reconnect successful!",php_rqst->server);
#endif
if (DBSETOPT(mssql_ptr->link, DBBUFFER, "2")==FAIL) {
#if BROKEN_MSSQL_PCONNECTS
log_error("PHP/MS SQL: Unable to set required options",php_rqst->server);
#endif
zend_hash_del(&EG(persistent_list), hashed_details, hashed_details_length + 1);
efree(hashed_details);
dbfreelogin(mssql_ptr->login);
dbclose(mssql_ptr->link);
RETURN_FALSE;
}
}
}
ZEND_REGISTER_RESOURCE(return_value, mssql_ptr, le_plink);
} else { /* non persistent */
zend_rsrc_list_entry *index_ptr, new_index_ptr;
/* first we check the hash for the hashed_details key. if it exists,
* it should point us to the right offset where the actual mssql link sits.
* if it doesn't, open a new mssql link, add it to the resource list,
* and add a pointer to it with hashed_details as the key.
*/
if (!new_link && zend_hash_find(&EG(regular_list), hashed_details, hashed_details_length + 1,(void **) &index_ptr)==SUCCESS) {
int type,link;
void *ptr;
if (Z_TYPE_P(index_ptr) != le_index_ptr) {
efree(hashed_details);
dbfreelogin(mssql.login);
RETURN_FALSE;
}
link = (int) index_ptr->ptr;
ptr = zend_list_find(link,&type); /* check if the link is still there */
if (ptr && (type==le_link || type==le_plink)) {
zend_list_addref(link);
Z_LVAL_P(return_value) = link;
php_mssql_set_default_link(link TSRMLS_CC);
Z_TYPE_P(return_value) = IS_RESOURCE;
dbfreelogin(mssql.login);
efree(hashed_details);
return;
} else {
zend_hash_del(&EG(regular_list), hashed_details, hashed_details_length + 1);
}
}
if (MS_SQL_G(max_links) != -1 && MS_SQL_G(num_links) >= MS_SQL_G(max_links)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Too many open links (%ld)", MS_SQL_G(num_links));
efree(hashed_details);
dbfreelogin(mssql.login);
RETURN_FALSE;
}
if ((mssql.link=dbopen(mssql.login, host))==NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to connect to server: %s", (host == NULL ? "" : host));
efree(hashed_details);
dbfreelogin(mssql.login);
RETURN_FALSE;
}
if (DBSETOPT(mssql.link, DBBUFFER,"2")==FAIL) {
efree(hashed_details);
dbfreelogin(mssql.login);
dbclose(mssql.link);
RETURN_FALSE;
}
#ifndef HAVE_FREETDS
if (MS_SQL_G(textlimit) != -1) {
snprintf(buffer, sizeof(buffer), "%li", MS_SQL_G(textlimit));
if (DBSETOPT(mssql.link, DBTEXTLIMIT, buffer)==FAIL) {
efree(hashed_details);
dbfreelogin(mssql.login);
dbclose(mssql.link);
RETURN_FALSE;
}
}
#endif
if (MS_SQL_G(textsize) != -1) {
snprintf(buffer, sizeof(buffer), "SET TEXTSIZE %li", MS_SQL_G(textsize));
dbcmd(mssql.link, buffer);
dbsqlexec(mssql.link);
dbresults(mssql.link);
}
/* add it to the list */
mssql_ptr = (mssql_link *) emalloc(sizeof(mssql_link));
memcpy(mssql_ptr, &mssql, sizeof(mssql_link));
ZEND_REGISTER_RESOURCE(return_value, mssql_ptr, le_link);
/* add it to the hash */
new_index_ptr.ptr = (void *) Z_LVAL_P(return_value);
Z_TYPE(new_index_ptr) = le_index_ptr;
if (zend_hash_update(&EG(regular_list), hashed_details, hashed_details_length + 1,(void *) &new_index_ptr, sizeof(zend_rsrc_list_entry),NULL)==FAILURE) {
efree(hashed_details);
RETURN_FALSE;
}
MS_SQL_G(num_links)++;
}
efree(hashed_details);
php_mssql_set_default_link(Z_LVAL_P(return_value) TSRMLS_CC);
}
/* }}} */
/* {{{ php_mssql_get_default_link
*/
static int php_mssql_get_default_link(INTERNAL_FUNCTION_PARAMETERS)
{
if (MS_SQL_G(default_link)==-1) { /* no link opened yet, implicitly open one */
ht = 0;
php_mssql_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU,0);
}
return MS_SQL_G(default_link);
}
/* }}} */
/* {{{ proto int mssql_connect([string servername [, string username [, string password [, bool new_link]]]])
Establishes a connection to a MS-SQL server */
PHP_FUNCTION(mssql_connect)
{
php_mssql_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU,0);
}
/* }}} */
/* {{{ proto int mssql_pconnect([string servername [, string username [, string password [, bool new_link]]]])
Establishes a persistent connection to a MS-SQL server */
PHP_FUNCTION(mssql_pconnect)
{
php_mssql_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU,1);
}
/* }}} */
/* {{{ proto bool mssql_close([resource conn_id])
Closes a connection to a MS-SQL server */
PHP_FUNCTION(mssql_close)
{
zval *mssql_link_index = NULL;
int id = -1;
mssql_link *mssql_ptr;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|r", &mssql_link_index) == FAILURE) {
return;
}
if (mssql_link_index == NULL) {
id = php_mssql_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
CHECK_LINK(id);
}
ZEND_FETCH_RESOURCE2(mssql_ptr, mssql_link *, &mssql_link_index, id, "MS SQL-Link", le_link, le_plink);
if (mssql_link_index) {
zend_list_delete(Z_RESVAL_P(mssql_link_index));
} else {
zend_list_delete(id);
}
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool mssql_select_db(string database_name [, resource conn_id])
Select a MS-SQL database */
PHP_FUNCTION(mssql_select_db)
{
char *db;
zval *mssql_link_index = NULL;
int db_len;
int id = -1;
mssql_link *mssql_ptr;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|r", &db, &db_len, &mssql_link_index) == FAILURE) {
return;
}
if (mssql_link_index == NULL) {
id = php_mssql_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
CHECK_LINK(id);
}
ZEND_FETCH_RESOURCE2(mssql_ptr, mssql_link *, &mssql_link_index, id, "MS SQL-Link", le_link, le_plink);
if (dbuse(mssql_ptr->link, db)==FAIL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to select database: %s", db);
RETURN_FALSE;
} else {
RETURN_TRUE;
}
}
/* }}} */
/* {{{ php_mssql_get_column_content_with_type
*/
static void php_mssql_get_column_content_with_type(mssql_link *mssql_ptr,int offset,zval *result, int column_type TSRMLS_DC)
{
if (dbdata(mssql_ptr->link,offset) == NULL && dbdatlen(mssql_ptr->link,offset) == 0) {
ZVAL_NULL(result);
return;
}
switch (column_type)
{
case SQLBIT:
case SQLINT1:
case SQLINT2:
case SQLINT4:
case SQLINTN: {
ZVAL_LONG(result, (long) anyintcol(offset));
break;
}
case SQLCHAR:
case SQLVARCHAR:
case SQLTEXT: {
int length;
char *data = charcol(offset);
length=dbdatlen(mssql_ptr->link,offset);
#if ilia_0
while (length>0 && data[length-1] == ' ') { /* nuke trailing whitespace */
length--;
}
#endif
ZVAL_STRINGL(result, data, length, 1);
break;
}
case SQLFLT4:
ZVAL_DOUBLE(result, (double) floatcol4(offset));
break;
case SQLMONEY:
case SQLMONEY4:
case SQLMONEYN: {
DBFLT8 res_buf;
dbconvert(NULL, column_type, dbdata(mssql_ptr->link,offset), 8, SQLFLT8, (LPBYTE)&res_buf, -1);
ZVAL_DOUBLE(result, res_buf);
}
break;
case SQLFLT8:
ZVAL_DOUBLE(result, (double) floatcol8(offset));
break;
#ifdef SQLUNIQUE
case SQLUNIQUE: {
#else
case 36: { /* FreeTDS hack */
#endif
char *data = charcol(offset);
/* uniqueidentifier is a 16-byte binary number */
ZVAL_STRINGL(result, data, 16, 1);
}
break;
case SQLVARBINARY:
case SQLBINARY:
case SQLIMAGE: {
int res_length = dbdatlen(mssql_ptr->link, offset);
if (!res_length) {
ZVAL_NULL(result);
} else {
ZVAL_STRINGL(result, (char *)dbdata(mssql_ptr->link, offset), res_length, 1);
}
}
break;
case SQLNUMERIC:
default: {
if (dbwillconvert(column_type,SQLCHAR)) {
char *res_buf;
DBDATEREC dateinfo;
int res_length = dbdatlen(mssql_ptr->link,offset);
if (res_length == -1) {
res_length = 255;
}