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php_mssql.c
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/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2003 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.02 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license/2_02.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@frontbase.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#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);
static unsigned char a3_arg_force_ref[] = { 3, BYREF_NONE, BYREF_NONE, BYREF_FORCE };
function_entry mssql_functions[] = {
PHP_FE(mssql_connect, NULL)
PHP_FE(mssql_pconnect, NULL)
PHP_FE(mssql_close, NULL)
PHP_FE(mssql_select_db, NULL)
PHP_FE(mssql_query, NULL)
PHP_FE(mssql_fetch_batch, NULL)
PHP_FE(mssql_rows_affected, NULL)
PHP_FE(mssql_free_result, NULL)
PHP_FE(mssql_get_last_message, NULL)
PHP_FE(mssql_num_rows, NULL)
PHP_FE(mssql_num_fields, NULL)
PHP_FE(mssql_fetch_field, NULL)
PHP_FE(mssql_fetch_row, NULL)
PHP_FE(mssql_fetch_array, NULL)
PHP_FE(mssql_fetch_assoc, NULL)
PHP_FE(mssql_fetch_object, NULL)
PHP_FE(mssql_field_length, NULL)
PHP_FE(mssql_field_name, NULL)
PHP_FE(mssql_field_type, NULL)
PHP_FE(mssql_data_seek, NULL)
PHP_FE(mssql_field_seek, NULL)
PHP_FE(mssql_result, NULL)
PHP_FE(mssql_next_result, NULL)
PHP_FE(mssql_min_error_severity, NULL)
PHP_FE(mssql_min_message_severity, NULL)
PHP_FE(mssql_init, NULL)
PHP_FE(mssql_bind, a3_arg_force_ref)
PHP_FE(mssql_execute, NULL)
PHP_FE(mssql_free_statement, NULL)
PHP_FE(mssql_guid_string, NULL)
{NULL, NULL, NULL}
};
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,
STANDARD_MODULE_PROPERTIES
};
ZEND_DECLARE_MODULE_GLOBALS(mssql)
#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; } }
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_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, OnUpdateInt, max_persistent, zend_mssql_globals, mssql_globals, display_link_numbers)
STD_PHP_INI_ENTRY_EX("mssql.max_links", "-1", PHP_INI_SYSTEM, OnUpdateInt, max_links, zend_mssql_globals, mssql_globals, display_link_numbers)
STD_PHP_INI_ENTRY_EX("mssql.min_error_severity", "10", PHP_INI_ALL, OnUpdateInt, 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, OnUpdateInt, 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, OnUpdateInt, connect_timeout, zend_mssql_globals, mssql_globals, display_link_numbers)
STD_PHP_INI_ENTRY_EX("mssql.timeout", "60", PHP_INI_ALL, OnUpdateInt, timeout, zend_mssql_globals, mssql_globals, display_link_numbers)
STD_PHP_INI_ENTRY_EX("mssql.textsize", "-1", PHP_INI_ALL, OnUpdateInt, textsize, zend_mssql_globals, mssql_globals, display_text_size)
STD_PHP_INI_ENTRY_EX("mssql.textlimit", "-1", PHP_INI_ALL, OnUpdateInt, textlimit, zend_mssql_globals, mssql_globals, display_text_size)
STD_PHP_INI_ENTRY_EX("mssql.batchsize", "0", PHP_INI_ALL, OnUpdateInt, 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", "25", PHP_INI_ALL, OnUpdateInt, max_procs, zend_mssql_globals, mssql_globals, display_link_numbers)
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;
}
/* 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) = estrdup(msgtext);
return 0;
}
static int _clean_invalid_results(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;
}
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);
}
}
static void _free_mssql_statement(mssql_statement *statement)
{
if (statement->binds) {
zend_hash_destroy(statement->binds);
efree(statement->binds);
}
efree(statement);
}
static void _free_mssql_result(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
mssql_result *result = (mssql_result *)rsrc->ptr;
_free_result(result, 1);
efree(result);
}
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);
}
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)--;
}
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)--;
}
static void _mssql_bind_hash_dtor(void *data)
{
mssql_bind *bind= (mssql_bind *) data;
zval_ptr_dtor(&(bind->zval));
}
static void php_mssql_init_globals(zend_mssql_globals *mssql_globals)
{
long compatability_mode;
mssql_globals->num_persistent = 0;
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;
} else {
mssql_globals->get_column_content = php_mssql_get_column_content_with_type;
}
}
}
PHP_MINIT_FUNCTION(mssql)
{
ZEND_INIT_MODULE_GLOBALS(mssql, php_mssql_init_globals, NULL);
REGISTER_INI_ENTRIES();
le_statement = register_list_destructors(_free_mssql_statement, NULL);
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_sp_bind */
return SUCCESS;
}
PHP_MSHUTDOWN_FUNCTION(mssql)
{
UNREGISTER_INI_ENTRIES();
dbexit();
return SUCCESS;
}
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 4.0",7);
MS_SQL_G(server_message) = empty_string;
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;
dbsetlogintime(MS_SQL_G(connect_timeout));
if (MS_SQL_G(timeout) < 0) MS_SQL_G(timeout) = 60;
dbsettime(MS_SQL_G(timeout));
dbsetmaxprocs((SHORT)MS_SQL_G(max_procs));
return SUCCESS;
}
PHP_RSHUTDOWN_FUNCTION(mssql)
{
STR_FREE(MS_SQL_G(appname));
if (MS_SQL_G(server_message)) {
STR_FREE(MS_SQL_G(server_message));
}
return SUCCESS;
}
PHP_MINFO_FUNCTION(mssql)
{
char buf[32];
php_info_print_table_start();
php_info_print_table_header(2, "MSSQL Support", "enabled");
sprintf(buf, "%ld", MS_SQL_G(num_persistent));
php_info_print_table_row(2, "Active Persistent Links", buf);
sprintf(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();
}
static void php_mssql_do_connect(INTERNAL_FUNCTION_PARAMETERS, int persistent)
{
char *user, *passwd, *host;
char *hashed_details;
int hashed_details_length;
mssql_link mssql, *mssql_ptr;
char buffer[32];
switch(ZEND_NUM_ARGS()) {
case 0: /* defaults */
host=user=passwd=NULL;
hashed_details_length=5+3;
hashed_details = (char *) emalloc(hashed_details_length+1);
strcpy(hashed_details,"mssql___");
break;
case 1: {
zval **yyhost;
if (zend_get_parameters_ex(1, &yyhost)==FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(yyhost);
host = Z_STRVAL_PP(yyhost);
user=passwd=NULL;
hashed_details_length = Z_STRLEN_PP(yyhost)+5+3;
hashed_details = (char *) emalloc(hashed_details_length+1);
sprintf(hashed_details,"mssql_%s__",Z_STRVAL_PP(yyhost));
}
break;
case 2: {
zval **yyhost,**yyuser;
if (zend_get_parameters_ex(2, &yyhost, &yyuser)==FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(yyhost);
convert_to_string_ex(yyuser);
host = Z_STRVAL_PP(yyhost);
user = Z_STRVAL_PP(yyuser);
passwd=NULL;
hashed_details_length = Z_STRLEN_PP(yyhost)+Z_STRLEN_PP(yyuser)+5+3;
hashed_details = (char *) emalloc(hashed_details_length+1);
sprintf(hashed_details,"mssql_%s_%s_",Z_STRVAL_PP(yyhost),Z_STRVAL_PP(yyuser));
}
break;
case 3: {
zval **yyhost,**yyuser,**yypasswd;
if (zend_get_parameters_ex(3, &yyhost, &yyuser, &yypasswd) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(yyhost);
convert_to_string_ex(yyuser);
convert_to_string_ex(yypasswd);
host = Z_STRVAL_PP(yyhost);
user = Z_STRVAL_PP(yyuser);
passwd = Z_STRVAL_PP(yypasswd);
hashed_details_length = Z_STRLEN_PP(yyhost)+Z_STRLEN_PP(yyuser)+Z_STRLEN_PP(yypasswd)+5+3;
hashed_details = (char *) emalloc(hashed_details_length+1);
sprintf(hashed_details,"mssql_%s_%s_%s",Z_STRVAL_PP(yyhost),Z_STRVAL_PP(yyuser),Z_STRVAL_PP(yypasswd)); /* SAFE */
}
break;
default:
WRONG_PARAM_COUNT;
break;
}
if (hashed_details == NULL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Out of memory");
RETURN_FALSE;
}
/* 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
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) {
list_entry *le;
/* try to find if we already have this link in our persistent list */
if (zend_hash_find(&EG(persistent_list), hashed_details, hashed_details_length + 1, (void **) &le)==FAILURE) { /* we don't */
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 (%d)", 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 (%d)", 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);
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;
}
if (MS_SQL_G(textlimit) != -1) {
sprintf(buffer, "%li", MS_SQL_G(textlimit));
if (DBSETOPT(mssql.link, DBTEXTLIMIT, buffer)==FAIL) {
efree(hashed_details);
dbfreelogin(mssql.login);
RETURN_FALSE;
}
}
if (MS_SQL_G(textsize) != -1) {
sprintf(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(list_entry), NULL)==FAILURE) {
free(mssql_ptr);
efree(hashed_details);
dbfreelogin(mssql.login);
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!");
RETURN_FALSE;
}
mssql_ptr = (mssql_link *) le->ptr;
/* test that the link hasn't died */
if (DBDEAD(mssql_ptr->link) == TRUE) {
#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))==FAIL) {
#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);
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);
RETURN_FALSE;
}
}
}
ZEND_REGISTER_RESOURCE(return_value, mssql_ptr, le_plink);
} else { /* non persistent */
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 (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) {
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;
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 (%d)", MS_SQL_G(num_links));
efree(hashed_details);
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);
efree(hashed_details);
RETURN_FALSE;
}
if (DBSETOPT(mssql.link, DBBUFFER,"2")==FAIL) {
efree(hashed_details);
dbfreelogin(mssql.login);
dbclose(mssql.link);
RETURN_FALSE;
}
if (MS_SQL_G(textlimit) != -1) {
sprintf(buffer, "%li", MS_SQL_G(textlimit));
if (DBSETOPT(mssql.link, DBTEXTLIMIT, buffer)==FAIL) {
efree(hashed_details);
dbfreelogin(mssql.login);
RETURN_FALSE;
}
}
if (MS_SQL_G(textsize) != -1) {
sprintf(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(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);
}
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]]])
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]]])
Establishes a persistent connection to a MS-SQL server */
PHP_FUNCTION(mssql_pconnect)
{
php_mssql_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU,1);
}
/* }}} */
/* {{{ proto int mssql_close([int connectionid])
Closes a connection to a MS-SQL server */
PHP_FUNCTION(mssql_close)
{
zval **mssql_link_index=NULL;
int id;
mssql_link *mssql_ptr;
switch (ZEND_NUM_ARGS()) {
case 0:
id = php_mssql_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
CHECK_LINK(id);
break;
case 1:
if (zend_get_parameters_ex(1, &mssql_link_index)==FAILURE) {
RETURN_FALSE;
}
id = -1;
break;
default:
WRONG_PARAM_COUNT;
break;
}
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_PP(mssql_link_index));
else
zend_list_delete(id);
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool mssql_select_db(string database_name [, int conn_id])
Select a MS-SQL database */
PHP_FUNCTION(mssql_select_db)
{
zval **db, **mssql_link_index;
int id;
mssql_link *mssql_ptr;
switch(ZEND_NUM_ARGS()) {
case 1:
if (zend_get_parameters_ex(1, &db)==FAILURE) {
RETURN_FALSE;
}
id = php_mssql_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
CHECK_LINK(id);
break;
case 2:
if (zend_get_parameters_ex(2, &db, &mssql_link_index)==FAILURE) {
RETURN_FALSE;
}
id = -1;
break;
default:
WRONG_PARAM_COUNT;
break;
}
ZEND_FETCH_RESOURCE2(mssql_ptr, mssql_link *, mssql_link_index, id, "MS SQL-Link", le_link, le_plink);
convert_to_string_ex(db);
if (dbuse(mssql_ptr->link, Z_STRVAL_PP(db))==FAIL) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to select database: %s", Z_STRVAL_PP(db));
RETURN_FALSE;
} else {
RETURN_TRUE;
}
}
/* }}} */
static void php_mssql_get_column_content_with_type(mssql_link *mssql_ptr,int offset,zval *result, int column_type TSRMLS_DC)
{
if (dbdatlen(mssql_ptr->link,offset) == 0) {
ZVAL_NULL(result);
return;
}
switch (column_type)
{
case SQLINT1:
case SQLINT2:
case SQLINT4:
case SQLINTN: {
Z_LVAL_P(result) = (long) anyintcol(offset);
Z_TYPE_P(result) = IS_LONG;
break;
}
case SQLCHAR:
case SQLVARCHAR:
case SQLTEXT: {
int length;
char *data = charcol(offset);
length=dbdatlen(mssql_ptr->link,offset);
while (length>0 && data[length-1] == ' ') { /* nuke trailing whitespace */
length--;
}
Z_STRVAL_P(result) = estrndup(data,length);
Z_STRLEN_P(result) = length;
Z_TYPE_P(result) = IS_STRING;
break;
}
case SQLFLT4:
Z_DVAL_P(result) = (double) floatcol4(offset);
Z_TYPE_P(result) = IS_DOUBLE;
break;
case SQLFLT8:
Z_DVAL_P(result) = (double) floatcol8(offset);
Z_TYPE_P(result) = IS_DOUBLE;
break;
case SQLVARBINARY:
case SQLBINARY:
case SQLIMAGE: {
DBBINARY *bin;
unsigned char *res_buf;
int res_length = dbdatlen(mssql_ptr->link, offset);
res_buf = (unsigned char *) emalloc(res_length+1);
bin = ((DBBINARY *)dbdata(mssql_ptr->link, offset));
memcpy(res_buf,bin,res_length);
res_buf[res_length] = '\0';
Z_STRLEN_P(result) = res_length;
Z_STRVAL_P(result) = res_buf;
Z_TYPE_P(result) = IS_STRING;
}
break;
case SQLNUMERIC:
default: {
if (dbwillconvert(column_type,SQLCHAR)) {
char *res_buf;
DBDATEREC dateinfo;
int res_length = dbdatlen(mssql_ptr->link,offset);
if ((column_type != SQLDATETIME) || MS_SQL_G(datetimeconvert)) {
if (column_type == SQLDATETIM4) res_length += 14;
if (column_type == SQLDATETIME) res_length += 10;
res_buf = (unsigned char *) emalloc(res_length+1);
res_length = dbconvert(NULL,coltype(offset),dbdata(mssql_ptr->link,offset), res_length, SQLCHAR,res_buf,-1);
} else {
dbdatecrack(mssql_ptr->link, &dateinfo, (DBDATETIME *) dbdata(mssql_ptr->link,offset));
res_length = 19;
res_buf = (unsigned char *) emalloc(res_length+1);
sprintf(res_buf, "%d-%02d-%02d %02d:%02d:%02d" , dateinfo.year, dateinfo.month, dateinfo.day, dateinfo.hour, dateinfo.minute, dateinfo.second);
}
Z_STRVAL_P(result) = res_buf;
Z_STRLEN_P(result) = res_length;
Z_TYPE_P(result) = IS_STRING;
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "column %d has unknown data type (%d)", offset, coltype(offset));
ZVAL_FALSE(result);
}
}
}
}
static void php_mssql_get_column_content_without_type(mssql_link *mssql_ptr,int offset,zval *result, int column_type TSRMLS_DC)
{
if (dbdatlen(mssql_ptr->link,offset) == 0) {
ZVAL_NULL(result);
return;
}
if (column_type == SQLVARBINARY ||
column_type == SQLBINARY ||
column_type == SQLIMAGE) {
DBBINARY *bin;
unsigned char *res_buf;
int res_length = dbdatlen(mssql_ptr->link, offset);
res_buf = (unsigned char *) emalloc(res_length+1);
bin = ((DBBINARY *)dbdata(mssql_ptr->link, offset));
memcpy(res_buf, bin, res_length);
res_buf[res_length] = '\0';
Z_STRLEN_P(result) = res_length;
Z_STRVAL_P(result) = res_buf;
Z_TYPE_P(result) = IS_STRING;
}
else if (dbwillconvert(coltype(offset),SQLCHAR)) {
unsigned char *res_buf;
DBDATEREC dateinfo;
int res_length = dbdatlen(mssql_ptr->link,offset);
if ((column_type != SQLDATETIME) || MS_SQL_G(datetimeconvert)) {
if (column_type == SQLDATETIM4) res_length += 14;
if (column_type == SQLDATETIME) res_length += 10;
res_buf = (unsigned char *) emalloc(res_length+1);
res_length = dbconvert(NULL,coltype(offset),dbdata(mssql_ptr->link,offset), res_length, SQLCHAR, res_buf, -1);
} else {
dbdatecrack(mssql_ptr->link, &dateinfo, (DBDATETIME *) dbdata(mssql_ptr->link,offset));
res_length = 19;
res_buf = (unsigned char *) emalloc(res_length+1);
sprintf(res_buf, "%d-%02d-%02d %02d:%02d:%02d" , dateinfo.year, dateinfo.month, dateinfo.day, dateinfo.hour, dateinfo.minute, dateinfo.second);
}
Z_STRVAL_P(result) = res_buf;
Z_STRLEN_P(result) = res_length;
Z_TYPE_P(result) = IS_STRING;
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "column %d has unknown data type (%d)", offset, coltype(offset));
ZVAL_FALSE(result);
}
}
static void _mssql_get_sp_result(mssql_link *mssql_ptr, mssql_statement *statement TSRMLS_DC)
{
int i, num_rets, type;
char *parameter;
mssql_bind *bind;
/* Now to fetch RETVAL and OUTPUT values*/
num_rets = dbnumrets(mssql_ptr->link);
if (num_rets!=0) {
for (i = 1; i <= num_rets; i++) {
parameter = (char*)dbretname(mssql_ptr->link, i);
type = dbrettype(mssql_ptr->link, i);
if (statement->binds != NULL) { /* Maybe a non-parameter sp */
if (zend_hash_find(statement->binds, parameter, strlen(parameter), (void**)&bind)==SUCCESS) {
switch (type) {
case SQLBIT:
case SQLINT1:
case SQLINT2:
case SQLINT4:
convert_to_long_ex(&bind->zval);
Z_LVAL_P(bind->zval) = *((int *)(dbretdata(mssql_ptr->link,i)));
break;
case SQLFLT4:
case SQLFLT8:
case SQLFLTN:
convert_to_double_ex(&bind->zval);
Z_DVAL_P(bind->zval) = *((double *)(dbretdata(mssql_ptr->link,i)));
break;
case SQLCHAR:
case SQLVARCHAR:
case SQLTEXT:
convert_to_string_ex(&bind->zval);
Z_STRLEN_P(bind->zval) = dbretlen(mssql_ptr->link,i);
Z_STRVAL_P(bind->zval) = estrndup(dbretdata(mssql_ptr->link,i),Z_STRLEN_P(bind->zval));
break;
}
}
else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "An output parameter variable was not provided");
}
}
}
}
if (statement->binds != NULL) { /* Maybe a non-parameter sp */
if (zend_hash_find(statement->binds, "RETVAL", 6, (void**)&bind)==SUCCESS) {
if (dbhasretstat(mssql_ptr->link)) {
convert_to_long_ex(&bind->zval);
Z_LVAL_P(bind->zval)=dbretstatus(mssql_ptr->link);
}
else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "stored procedure has no return value. Nothing was returned into RETVAL");
}
}
}
}
static int _mssql_fetch_batch(mssql_link *mssql_ptr, mssql_result *result, int retvalue TSRMLS_DC)
{
int i, j = 0;
int *column_types;
char computed_buf[16];
column_types = (int *) emalloc(sizeof(int) * result->num_fields);
for (i=0; i<result->num_fields; i++) {
char *fname = (char *)dbcolname(mssql_ptr->link,i+1);
if (*fname) {
result->fields[i].name = estrdup(fname);
} else {
if (j>0) {
snprintf(computed_buf,16,"computed%d",j);
} else {
strcpy(computed_buf,"computed");
}
result->fields[i].name = estrdup(computed_buf);
j++;
}
result->fields[i].max_length = dbcollen(mssql_ptr->link,i+1);
result->fields[i].column_source = estrdup(dbcolsource(mssql_ptr->link,i+1));
if (!result->fields[i].column_source) {
result->fields[i].column_source = empty_string;
}
column_types[i] = coltype(i+1);
Z_TYPE(result->fields[i]) = column_types[i];
/* set numeric flag */
switch (column_types[i]) {
case SQLINT1:
case SQLINT2:
case SQLINT4:
case SQLINTN:
case SQLFLT4:
case SQLFLT8:
case SQLNUMERIC:
case SQLDECIMAL: