root/ext/pdo_mysql/mysql_driver.c

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DEFINITIONS

This source file includes following definitions.
  1. _pdo_mysql_error
  2. pdo_mysql_fetch_error_func
  3. mysql_handle_closer
  4. mysql_handle_preparer
  5. mysql_handle_doer
  6. pdo_mysql_last_insert_id
  7. mysql_handle_quoter
  8. mysql_handle_begin
  9. mysql_handle_commit
  10. mysql_handle_rollback
  11. mysql_handle_autocommit
  12. pdo_mysql_set_attribute
  13. pdo_mysql_get_attribute
  14. pdo_mysql_check_liveness
  15. pdo_mysql_handle_factory

/*
  +----------------------------------------------------------------------+
  | PHP Version 5                                                        |
  +----------------------------------------------------------------------+
  | Copyright (c) 1997-2015 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: George Schlossnagle <george@omniti.com>                      |
  |         Wez Furlong <wez@php.net>                                    |
  |         Johannes Schlueter <johannes@mysql.com>                      |
  +----------------------------------------------------------------------+
*/

/* $Id$ */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "pdo/php_pdo.h"
#include "pdo/php_pdo_driver.h"
#include "php_pdo_mysql.h"
#include "php_pdo_mysql_int.h"
#ifndef PDO_USE_MYSQLND
#include <mysqld_error.h>
#endif
#include "zend_exceptions.h"

#if defined(PDO_USE_MYSQLND)
#       define pdo_mysql_init(persistent) mysqlnd_init(MYSQLND_CLIENT_NO_FLAG, persistent)
#else
#       define pdo_mysql_init(persistent) mysql_init(NULL)
#endif

/* {{{ _pdo_mysql_error */
int _pdo_mysql_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, const char *file, int line TSRMLS_DC)
{
        pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
        pdo_error_type *pdo_err; 
        pdo_mysql_error_info *einfo;
        pdo_mysql_stmt *S = NULL;

        PDO_DBG_ENTER("_pdo_mysql_error");
        PDO_DBG_INF_FMT("file=%s line=%d", file, line);
        if (stmt) {
                S = (pdo_mysql_stmt*)stmt->driver_data;
                pdo_err = &stmt->error_code;
                einfo   = &S->einfo;
        } else {
                pdo_err = &dbh->error_code;
                einfo   = &H->einfo;
        }

        if (S && S->stmt) {
                einfo->errcode = mysql_stmt_errno(S->stmt);
        } else {
                einfo->errcode = mysql_errno(H->server);
        }

        einfo->file = file;
        einfo->line = line;

        if (einfo->errmsg) {
                pefree(einfo->errmsg, dbh->is_persistent);
                einfo->errmsg = NULL;
        }

        if (einfo->errcode) {
                if (einfo->errcode == 2014) {
                        einfo->errmsg = pestrdup(
                                "Cannot execute queries while other unbuffered queries are active.  "
                                "Consider using PDOStatement::fetchAll().  Alternatively, if your code "
                                "is only ever going to run against mysql, you may enable query "
                                "buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute.",
                                dbh->is_persistent);
                } else if (einfo->errcode == 2057) {
                        einfo->errmsg = pestrdup(
                                "A stored procedure returning result sets of different size was called. "
                                "This is not supported by libmysql",
                                dbh->is_persistent);

                } else {
                        einfo->errmsg = pestrdup(mysql_error(H->server), dbh->is_persistent);
                }
        } else { /* no error */
                strcpy(*pdo_err, PDO_ERR_NONE);
                PDO_DBG_RETURN(0);
        }

        if (S && S->stmt) {
                strcpy(*pdo_err, mysql_stmt_sqlstate(S->stmt));
        } else {
                strcpy(*pdo_err, mysql_sqlstate(H->server));
        }

        if (!dbh->methods) {
                PDO_DBG_INF("Throwing exception");
                zend_throw_exception_ex(php_pdo_get_exception(), einfo->errcode TSRMLS_CC, "SQLSTATE[%s] [%d] %s",
                                *pdo_err, einfo->errcode, einfo->errmsg);
        }

        PDO_DBG_RETURN(einfo->errcode);
}
/* }}} */

/* {{{ pdo_mysql_fetch_error_func */
static int pdo_mysql_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info TSRMLS_DC)
{
        pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
        pdo_mysql_error_info *einfo = &H->einfo;

        PDO_DBG_ENTER("pdo_mysql_fetch_error_func");
        PDO_DBG_INF_FMT("dbh=%p stmt=%p", dbh, stmt);
        if (stmt) {
                pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
                einfo = &S->einfo;
        } else {
                einfo = &H->einfo;
        }

        if (einfo->errcode) {
                add_next_index_long(info, einfo->errcode);
                add_next_index_string(info, einfo->errmsg, 1);
        }

        PDO_DBG_RETURN(1);
}
/* }}} */

/* {{{ mysql_handle_closer */
static int mysql_handle_closer(pdo_dbh_t *dbh TSRMLS_DC)
{
        pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
        
        PDO_DBG_ENTER("mysql_handle_closer");
        PDO_DBG_INF_FMT("dbh=%p", dbh);
        if (H) {
                if (H->server) {
                        mysql_close(H->server);
                        H->server = NULL;
                }
                if (H->einfo.errmsg) {
                        pefree(H->einfo.errmsg, dbh->is_persistent);
                        H->einfo.errmsg = NULL;
                }
                pefree(H, dbh->is_persistent);
                dbh->driver_data = NULL;
        }
        PDO_DBG_RETURN(0);
}
/* }}} */

/* {{{ mysql_handle_preparer */
static int mysql_handle_preparer(pdo_dbh_t *dbh, const char *sql, long sql_len, pdo_stmt_t *stmt, zval *driver_options TSRMLS_DC)
{
        pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
        pdo_mysql_stmt *S = ecalloc(1, sizeof(pdo_mysql_stmt));
        char *nsql = NULL;
        int nsql_len = 0;
        int ret;
        int server_version;
        
        PDO_DBG_ENTER("mysql_handle_preparer");
        PDO_DBG_INF_FMT("dbh=%p", dbh);
        PDO_DBG_INF_FMT("sql=%.*s", sql_len, sql);

        S->H = H;
        stmt->driver_data = S;
        stmt->methods = &mysql_stmt_methods;

        if (H->emulate_prepare) {
                goto end;
        }

        server_version = mysql_get_server_version(H->server);
        if (server_version < 40100) {
                goto fallback;
        }
        stmt->supports_placeholders = PDO_PLACEHOLDER_POSITIONAL;
        ret = pdo_parse_params(stmt, (char*)sql, sql_len, &nsql, &nsql_len TSRMLS_CC);

        if (ret == 1) {
                /* query was rewritten */
                sql = nsql;
                sql_len = nsql_len;
        } else if (ret == -1) {
                /* failed to parse */
                strcpy(dbh->error_code, stmt->error_code);
                PDO_DBG_RETURN(0);
        }

        if (!(S->stmt = mysql_stmt_init(H->server))) {
                pdo_mysql_error(dbh);
                if (nsql) {
                        efree(nsql);
                }
                PDO_DBG_RETURN(0);
        }
        
        if (mysql_stmt_prepare(S->stmt, sql, sql_len)) {
                /* TODO: might need to pull statement specific info here? */
                /* if the query isn't supported by the protocol, fallback to emulation */
                if (mysql_errno(H->server) == 1295) {
                        if (nsql) {
                                efree(nsql);
                        }
                        goto fallback;
                }
                pdo_mysql_error(dbh);
                if (nsql) {
                        efree(nsql);
                }
                PDO_DBG_RETURN(0);
        }
        if (nsql) {
                efree(nsql);
        }

        S->num_params = mysql_stmt_param_count(S->stmt);

        if (S->num_params) {
                S->params_given = 0;
#if defined(PDO_USE_MYSQLND)
                S->params = NULL;
#else
                S->params = ecalloc(S->num_params, sizeof(MYSQL_BIND));
                S->in_null = ecalloc(S->num_params, sizeof(my_bool));
                S->in_length = ecalloc(S->num_params, sizeof(unsigned long));
#endif
        }
        dbh->alloc_own_columns = 1;

        S->max_length = pdo_attr_lval(driver_options, PDO_ATTR_MAX_COLUMN_LEN, 0 TSRMLS_CC);

        PDO_DBG_RETURN(1);

fallback:
end:
        stmt->supports_placeholders = PDO_PLACEHOLDER_NONE;
        
        PDO_DBG_RETURN(1);
}
/* }}} */

/* {{{ mysql_handle_doer */
static long mysql_handle_doer(pdo_dbh_t *dbh, const char *sql, long sql_len TSRMLS_DC)
{
        pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
        PDO_DBG_ENTER("mysql_handle_doer");
        PDO_DBG_INF_FMT("dbh=%p", dbh);
        PDO_DBG_INF_FMT("sql=%.*s", sql_len, sql);

        if (mysql_real_query(H->server, sql, sql_len)) {
                pdo_mysql_error(dbh);
                PDO_DBG_RETURN(-1);
        } else {
                my_ulonglong c = mysql_affected_rows(H->server);
                if (c == (my_ulonglong) -1) {
                        pdo_mysql_error(dbh);
                        PDO_DBG_RETURN(H->einfo.errcode ? -1 : 0);
                } else {

                        /* MULTI_QUERY support - eat up all unfetched result sets */
                        MYSQL_RES* result;
                        while (mysql_more_results(H->server)) {
                                if (mysql_next_result(H->server)) {
                                        PDO_DBG_RETURN(1);
                                }
                                result = mysql_store_result(H->server);
                                if (result) {
                                        mysql_free_result(result);
                                }
                        }
                        PDO_DBG_RETURN((int)c);
                }
        }
}
/* }}} */

/* {{{ pdo_mysql_last_insert_id */
static char *pdo_mysql_last_insert_id(pdo_dbh_t *dbh, const char *name, unsigned int *len TSRMLS_DC)
{
        pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
        char *id = php_pdo_int64_to_str(mysql_insert_id(H->server) TSRMLS_CC);
        PDO_DBG_ENTER("pdo_mysql_last_insert_id");
        *len = strlen(id);
        PDO_DBG_RETURN(id);
}
/* }}} */

/* {{{ mysql_handle_quoter */
static int mysql_handle_quoter(pdo_dbh_t *dbh, const char *unquoted, int unquotedlen, char **quoted, int *quotedlen, enum pdo_param_type paramtype  TSRMLS_DC)
{
        pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
        PDO_DBG_ENTER("mysql_handle_quoter");
        PDO_DBG_INF_FMT("dbh=%p", dbh);
        PDO_DBG_INF_FMT("unquoted=%.*s", unquotedlen, unquoted);
        *quoted = safe_emalloc(2, unquotedlen, 3);
        *quotedlen = mysql_real_escape_string(H->server, *quoted + 1, unquoted, unquotedlen);
        (*quoted)[0] =(*quoted)[++*quotedlen] = '\'';
        (*quoted)[++*quotedlen] = '\0';
        PDO_DBG_INF_FMT("quoted=%.*s", *quotedlen, *quoted);
        PDO_DBG_RETURN(1);
}
/* }}} */

/* {{{ mysql_handle_begin */
static int mysql_handle_begin(pdo_dbh_t *dbh TSRMLS_DC)
{
        PDO_DBG_ENTER("mysql_handle_quoter");
        PDO_DBG_INF_FMT("dbh=%p", dbh);
        PDO_DBG_RETURN(0 <= mysql_handle_doer(dbh, ZEND_STRL("START TRANSACTION") TSRMLS_CC));
}
/* }}} */

/* {{{ mysql_handle_commit */
static int mysql_handle_commit(pdo_dbh_t *dbh TSRMLS_DC)
{
        PDO_DBG_ENTER("mysql_handle_commit");
        PDO_DBG_INF_FMT("dbh=%p", dbh);
#if MYSQL_VERSION_ID >= 40100 || defined(PDO_USE_MYSQLND)
        PDO_DBG_RETURN(0 <= mysql_commit(((pdo_mysql_db_handle *)dbh->driver_data)->server));
#else
        PDO_DBG_RETURN(0 <= mysql_handle_doer(dbh, ZEND_STRL("COMMIT") TSRMLS_CC));
#endif
}
/* }}} */

/* {{{ mysql_handle_rollback */
static int mysql_handle_rollback(pdo_dbh_t *dbh TSRMLS_DC)
{
        PDO_DBG_ENTER("mysql_handle_rollback");
        PDO_DBG_INF_FMT("dbh=%p", dbh);
#if MYSQL_VERSION_ID >= 40100 || defined(PDO_USE_MYSQLND)
        PDO_DBG_RETURN(0 <= mysql_rollback(((pdo_mysql_db_handle *)dbh->driver_data)->server));
#else
        PDO_DBG_RETURN(0 <= mysql_handle_doer(dbh, ZEND_STRL("ROLLBACK") TSRMLS_CC));
#endif
}
/* }}} */

/* {{{ mysql_handle_autocommit */
static inline int mysql_handle_autocommit(pdo_dbh_t *dbh TSRMLS_DC)
{
        PDO_DBG_ENTER("mysql_handle_autocommit");
        PDO_DBG_INF_FMT("dbh=%p", dbh);
        PDO_DBG_INF_FMT("dbh->autocommit=%d", dbh->auto_commit);
#if MYSQL_VERSION_ID >= 40100 || defined(PDO_USE_MYSQLND)
        PDO_DBG_RETURN(0 <= mysql_autocommit(((pdo_mysql_db_handle *)dbh->driver_data)->server, dbh->auto_commit));
#else
        if (dbh->auto_commit) {
                PDO_DBG_RETURN(0 <= mysql_handle_doer(dbh, ZEND_STRL("SET AUTOCOMMIT=1") TSRMLS_CC));
        } else {
                PDO_DBG_RETURN(0 <= mysql_handle_doer(dbh, ZEND_STRL("SET AUTOCOMMIT=0") TSRMLS_CC));
        }
#endif
}
/* }}} */

/* {{{ pdo_mysql_set_attribute */
static int pdo_mysql_set_attribute(pdo_dbh_t *dbh, long attr, zval *val TSRMLS_DC)
{
        PDO_DBG_ENTER("pdo_mysql_set_attribute");
        PDO_DBG_INF_FMT("dbh=%p", dbh);
        PDO_DBG_INF_FMT("attr=%l", attr);
        switch (attr) {
                case PDO_ATTR_AUTOCOMMIT:               
                        convert_to_boolean(val);
        
                        /* ignore if the new value equals the old one */                        
                        if (dbh->auto_commit ^ Z_BVAL_P(val)) {
                                dbh->auto_commit = Z_BVAL_P(val);
                                mysql_handle_autocommit(dbh TSRMLS_CC);
                        }
                        PDO_DBG_RETURN(1);

                case PDO_MYSQL_ATTR_USE_BUFFERED_QUERY:
                        ((pdo_mysql_db_handle *)dbh->driver_data)->buffered = Z_BVAL_P(val);
                        PDO_DBG_RETURN(1);
                case PDO_MYSQL_ATTR_DIRECT_QUERY:
                case PDO_ATTR_EMULATE_PREPARES:
                        ((pdo_mysql_db_handle *)dbh->driver_data)->emulate_prepare = Z_BVAL_P(val);
                        PDO_DBG_RETURN(1);
                case PDO_ATTR_FETCH_TABLE_NAMES:
                        ((pdo_mysql_db_handle *)dbh->driver_data)->fetch_table_names = Z_BVAL_P(val);
                        PDO_DBG_RETURN(1);
#ifndef PDO_USE_MYSQLND
                case PDO_MYSQL_ATTR_MAX_BUFFER_SIZE:
                        if (Z_LVAL_P(val) < 0) {
                                /* TODO: Johannes, can we throw a warning here? */
                                ((pdo_mysql_db_handle *)dbh->driver_data)->max_buffer_size = 1024*1024;
                                PDO_DBG_INF_FMT("Adjusting invalid buffer size to =%l", ((pdo_mysql_db_handle *)dbh->driver_data)->max_buffer_size);
                        } else {
                                ((pdo_mysql_db_handle *)dbh->driver_data)->max_buffer_size = Z_LVAL_P(val);
                        }
                        PDO_DBG_RETURN(1);
                        break;
#endif

                default:
                        PDO_DBG_RETURN(0);
        }
}
/* }}} */

/* {{{ pdo_mysql_get_attribute */
static int pdo_mysql_get_attribute(pdo_dbh_t *dbh, long attr, zval *return_value TSRMLS_DC)
{
        pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;

        PDO_DBG_ENTER("pdo_mysql_get_attribute");
        PDO_DBG_INF_FMT("dbh=%p", dbh);
        PDO_DBG_INF_FMT("attr=%l", attr);
        switch (attr) {
                case PDO_ATTR_CLIENT_VERSION:
                        ZVAL_STRING(return_value, (char *)mysql_get_client_info(), 1);
                        break;

                case PDO_ATTR_SERVER_VERSION:
                        ZVAL_STRING(return_value, (char *)mysql_get_server_info(H->server), 1);
                        break;

                case PDO_ATTR_CONNECTION_STATUS:
                        ZVAL_STRING(return_value, (char *)mysql_get_host_info(H->server), 1);
                        break;
                case PDO_ATTR_SERVER_INFO: {
                        char *tmp;
#if defined(PDO_USE_MYSQLND)
                        unsigned int tmp_len;

                        if (mysqlnd_stat(H->server, &tmp, &tmp_len) == PASS) {
                                ZVAL_STRINGL(return_value, tmp, tmp_len, 0);
#else
                        if ((tmp = (char *)mysql_stat(H->server))) {
                                ZVAL_STRING(return_value, tmp, 1);
#endif
                        } else {
                                pdo_mysql_error(dbh);
                                PDO_DBG_RETURN(-1);
                        }
                }
                        break;
                case PDO_ATTR_AUTOCOMMIT:
                        ZVAL_LONG(return_value, dbh->auto_commit);
                        break;
                        
                case PDO_MYSQL_ATTR_USE_BUFFERED_QUERY:
                        ZVAL_LONG(return_value, H->buffered);
                        break;

                case PDO_ATTR_EMULATE_PREPARES:
                case PDO_MYSQL_ATTR_DIRECT_QUERY:
                        ZVAL_LONG(return_value, H->emulate_prepare);
                        break;

#ifndef PDO_USE_MYSQLND
                case PDO_MYSQL_ATTR_MAX_BUFFER_SIZE:
                        ZVAL_LONG(return_value, H->max_buffer_size);
                        break;
#endif

                default:
                        PDO_DBG_RETURN(0);      
        }

        PDO_DBG_RETURN(1);
}
/* }}} */

/* {{{ pdo_mysql_check_liveness */
static int pdo_mysql_check_liveness(pdo_dbh_t *dbh TSRMLS_DC)
{
        pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
#if MYSQL_VERSION_ID <= 32230
        void (*handler) (int);
        unsigned int my_errno;
#endif

        PDO_DBG_ENTER("pdo_mysql_check_liveness");
        PDO_DBG_INF_FMT("dbh=%p", dbh);

#if MYSQL_VERSION_ID > 32230
        if (mysql_ping(H->server)) {
                PDO_DBG_RETURN(FAILURE);
        }
#else /* no mysql_ping() */
        handler = signal(SIGPIPE, SIG_IGN);
        mysql_stat(H->server);
        switch (mysql_errno(H->server)) {
                case CR_SERVER_GONE_ERROR:
                case CR_SERVER_LOST:
                        signal(SIGPIPE, handler);
                        PDO_DBG_RETURN(FAILURE);
                default:
                        break;
        }
        signal(SIGPIPE, handler);
#endif /* end mysql_ping() */
        PDO_DBG_RETURN(SUCCESS);
} 
/* }}} */

/* {{{ mysql_methods */
static struct pdo_dbh_methods mysql_methods = {
        mysql_handle_closer,
        mysql_handle_preparer,
        mysql_handle_doer,
        mysql_handle_quoter,
        mysql_handle_begin,
        mysql_handle_commit,
        mysql_handle_rollback,
        pdo_mysql_set_attribute,
        pdo_mysql_last_insert_id,
        pdo_mysql_fetch_error_func,
        pdo_mysql_get_attribute,
        pdo_mysql_check_liveness
};
/* }}} */

#ifdef PHP_WIN32
# define PDO_DEFAULT_MYSQL_UNIX_ADDR    NULL
#else
# define PDO_DEFAULT_MYSQL_UNIX_ADDR    PDO_MYSQL_G(default_socket)
#endif

/* {{{ pdo_mysql_handle_factory */
static int pdo_mysql_handle_factory(pdo_dbh_t *dbh, zval *driver_options TSRMLS_DC)
{
        pdo_mysql_db_handle *H;
        int i, ret = 0;
        char *host = NULL, *unix_socket = NULL;
        unsigned int port = 3306;
        char *dbname;
        struct pdo_data_src_parser vars[] = {
                { "charset",  NULL,     0 },
                { "dbname",   "",       0 },
                { "host",   "localhost",        0 },
                { "port",   "3306",     0 },
                { "unix_socket",  PDO_DEFAULT_MYSQL_UNIX_ADDR,  0 },
        };
        int connect_opts = 0
#ifdef CLIENT_MULTI_RESULTS
                |CLIENT_MULTI_RESULTS
#endif
                ;
#if defined(PDO_USE_MYSQLND)
        int dbname_len = 0;
        int password_len = 0;
#endif

#ifdef CLIENT_MULTI_STATEMENTS
        if (!driver_options) {
                connect_opts |= CLIENT_MULTI_STATEMENTS;
        } else if (pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_MULTI_STATEMENTS, 1 TSRMLS_CC)) {
                connect_opts |= CLIENT_MULTI_STATEMENTS;
        }
#endif

        PDO_DBG_ENTER("pdo_mysql_handle_factory");
        PDO_DBG_INF_FMT("dbh=%p", dbh);
#ifdef CLIENT_MULTI_RESULTS
        PDO_DBG_INF("multi results");
#endif

        php_pdo_parse_data_source(dbh->data_source, dbh->data_source_len, vars, 5);

        H = pecalloc(1, sizeof(pdo_mysql_db_handle), dbh->is_persistent);

        H->einfo.errcode = 0;
        H->einfo.errmsg = NULL;

        /* allocate an environment */

        /* handle for the server */
        if (!(H->server = pdo_mysql_init(dbh->is_persistent))) {
                pdo_mysql_error(dbh);
                goto cleanup;
        }
        
        dbh->driver_data = H;

#ifndef PDO_USE_MYSQLND
        H->max_buffer_size = 1024*1024;
#endif

        H->buffered = H->emulate_prepare = 1;

        /* handle MySQL options */
        if (driver_options) {
                long connect_timeout = pdo_attr_lval(driver_options, PDO_ATTR_TIMEOUT, 30 TSRMLS_CC);
                long local_infile = pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_LOCAL_INFILE, 0 TSRMLS_CC);
                char *init_cmd = NULL;
#ifndef PDO_USE_MYSQLND
                char *default_file = NULL, *default_group = NULL;
#endif
                long compress = 0;
                char *ssl_key = NULL, *ssl_cert = NULL, *ssl_ca = NULL, *ssl_capath = NULL, *ssl_cipher = NULL;
                H->buffered = pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_USE_BUFFERED_QUERY, 1 TSRMLS_CC);

                H->emulate_prepare = pdo_attr_lval(driver_options,
                        PDO_MYSQL_ATTR_DIRECT_QUERY, H->emulate_prepare TSRMLS_CC);
                H->emulate_prepare = pdo_attr_lval(driver_options, 
                        PDO_ATTR_EMULATE_PREPARES, H->emulate_prepare TSRMLS_CC);

#ifndef PDO_USE_MYSQLND
                H->max_buffer_size = pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_MAX_BUFFER_SIZE, H->max_buffer_size TSRMLS_CC);
#endif

                if (pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_FOUND_ROWS, 0 TSRMLS_CC)) {
                        connect_opts |= CLIENT_FOUND_ROWS;
                }

                if (pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_IGNORE_SPACE, 0 TSRMLS_CC)) {
                        connect_opts |= CLIENT_IGNORE_SPACE;
                }

                if (mysql_options(H->server, MYSQL_OPT_CONNECT_TIMEOUT, (const char *)&connect_timeout)) {
                        pdo_mysql_error(dbh);
                        goto cleanup;
                }

#if PHP_API_VERSION < 20100412
                if ((PG(open_basedir) && PG(open_basedir)[0] != '\0') || PG(safe_mode))
#else
                if (PG(open_basedir) && PG(open_basedir)[0] != '\0') 
#endif
                {
                        local_infile = 0;
                }
#if defined(MYSQL_OPT_LOCAL_INFILE) || defined(PDO_USE_MYSQLND)
                if (mysql_options(H->server, MYSQL_OPT_LOCAL_INFILE, (const char *)&local_infile)) {
                        pdo_mysql_error(dbh);
                        goto cleanup;
                }
#endif
#ifdef MYSQL_OPT_RECONNECT
                /* since 5.0.3, the default for this option is 0 if not specified.
                 * we want the old behaviour
                 * mysqlnd doesn't support reconnect, thus we don't have "|| defined(PDO_USE_MYSQLND)"
                */
                {
                        long reconnect = 1;
                        mysql_options(H->server, MYSQL_OPT_RECONNECT, (const char*)&reconnect);
                }
#endif
                init_cmd = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_INIT_COMMAND, NULL TSRMLS_CC);
                if (init_cmd) {
                        if (mysql_options(H->server, MYSQL_INIT_COMMAND, (const char *)init_cmd)) {
                                efree(init_cmd);
                                pdo_mysql_error(dbh);
                                goto cleanup;
                        }
                        efree(init_cmd);
                }
#ifndef PDO_USE_MYSQLND         
                default_file = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_READ_DEFAULT_FILE, NULL TSRMLS_CC);
                if (default_file) {
                        if (mysql_options(H->server, MYSQL_READ_DEFAULT_FILE, (const char *)default_file)) {
                                efree(default_file);
                                pdo_mysql_error(dbh);
                                goto cleanup;
                        }
                        efree(default_file);
                }
                
                default_group= pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_READ_DEFAULT_GROUP, NULL TSRMLS_CC);
                if (default_group) {
                        if (mysql_options(H->server, MYSQL_READ_DEFAULT_GROUP, (const char *)default_group)) {
                                efree(default_group);
                                pdo_mysql_error(dbh);
                                goto cleanup;
                        }
                        efree(default_group);
                }
#endif
                compress = pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_COMPRESS, 0 TSRMLS_CC);
                if (compress) {
                        if (mysql_options(H->server, MYSQL_OPT_COMPRESS, 0)) {
                                pdo_mysql_error(dbh);
                                goto cleanup;
                        }
                }

                ssl_key = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SSL_KEY, NULL TSRMLS_CC);
                ssl_cert = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SSL_CERT, NULL TSRMLS_CC);
                ssl_ca = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SSL_CA, NULL TSRMLS_CC);
                ssl_capath = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SSL_CAPATH, NULL TSRMLS_CC);
                ssl_cipher = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SSL_CIPHER, NULL TSRMLS_CC);
                
                if (ssl_key || ssl_cert || ssl_ca || ssl_capath || ssl_cipher) {
                        mysql_ssl_set(H->server, ssl_key, ssl_cert, ssl_ca, ssl_capath, ssl_cipher);
                        if (ssl_key) {
                                efree(ssl_key);
                        }
                        if (ssl_cert) {
                                efree(ssl_cert);
                        }
                        if (ssl_ca) {
                                efree(ssl_ca);
                        }
                        if (ssl_capath) {
                                efree(ssl_capath);
                        }
                        if (ssl_cipher) {
                                efree(ssl_cipher);
                        }
                }

#if MYSQL_VERSION_ID > 50605 || defined(PDO_USE_MYSQLND)
                {
                        char *public_key = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SERVER_PUBLIC_KEY, NULL TSRMLS_CC);
                        if (public_key) {
                                if (mysql_options(H->server, MYSQL_SERVER_PUBLIC_KEY, public_key)) {
                                        pdo_mysql_error(dbh);
                                        efree(public_key);
                                        goto cleanup;
                                }
                                efree(public_key);
                        }
                }
#endif
        }

#ifdef PDO_MYSQL_HAS_CHARSET
        if (vars[0].optval && mysql_options(H->server, MYSQL_SET_CHARSET_NAME, vars[0].optval)) {
                pdo_mysql_error(dbh);
                goto cleanup;
        }
#endif

        dbname = vars[1].optval;
        host = vars[2].optval;  
        if(vars[3].optval) {
                port = atoi(vars[3].optval);
        }

#ifdef PHP_WIN32
        if (vars[2].optval && !strcmp(".", vars[2].optval)) {
#else
    if (vars[2].optval && !strcmp("localhost", vars[2].optval)) {
#endif
        unix_socket = vars[4].optval;
    }

        /* TODO: - Check zval cache + ZTS */
#ifdef PDO_USE_MYSQLND
        if (dbname) {
                dbname_len = strlen(dbname);
        }

        if (dbh->password) {
                password_len = strlen(dbh->password);
        }

        if (mysqlnd_connect(H->server, host, dbh->username, dbh->password, password_len, dbname, dbname_len,
                                                port, unix_socket, connect_opts, MYSQLND_CLIENT_NO_FLAG TSRMLS_CC) == NULL) {
#else
        if (mysql_real_connect(H->server, host, dbh->username, dbh->password, dbname, port, unix_socket, connect_opts) == NULL) {
#endif
                pdo_mysql_error(dbh);
                goto cleanup;
        }

        if (!dbh->auto_commit) {
                mysql_handle_autocommit(dbh TSRMLS_CC);
        }

        H->attached = 1;

        dbh->alloc_own_columns = 1;
        dbh->max_escaped_char_length = 2;
        dbh->methods = &mysql_methods;

        ret = 1;
        
cleanup:
        for (i = 0; i < sizeof(vars)/sizeof(vars[0]); i++) {
                if (vars[i].freeme) {
                        efree(vars[i].optval);
                }
        }
        
        dbh->methods = &mysql_methods;

        PDO_DBG_RETURN(ret);
}
/* }}} */

pdo_driver_t pdo_mysql_driver = {
        PDO_DRIVER_HEADER(mysql),
        pdo_mysql_handle_factory
};

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: noet sw=4 ts=4 fdm=marker
 * vim<600: noet sw=4 ts=4
 */

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