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mysqli_api.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2014 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. |
+----------------------------------------------------------------------+
| Authors: Georg Richter <georg@php.net> |
| Andrey Hristov <andrey@php.net> |
| Ulf Wendel <uw@php.net> |
+----------------------------------------------------------------------+
$Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <signal.h>
#include "php.h"
#include "php_ini.h"
#include "php_globals.h"
#include "ext/standard/info.h"
#include "php_mysqli_structs.h"
#include "mysqli_priv.h"
/* {{{ proto mixed mysqli_affected_rows(object link)
Get number of affected rows in previous MySQL operation */
PHP_FUNCTION(mysqli_affected_rows)
{
MY_MYSQL *mysql;
zval *mysql_link;
my_ulonglong rc;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_CONN(mysql, &mysql_link, MYSQLI_STATUS_VALID);
rc = mysql_affected_rows(mysql->mysql);
if (rc == (my_ulonglong) -1) {
RETURN_LONG(-1);
}
MYSQLI_RETURN_LONG_LONG(rc);
}
/* }}} */
/* {{{ proto bool mysqli_autocommit(object link, bool mode)
Turn auto commit on or of */
PHP_FUNCTION(mysqli_autocommit)
{
MY_MYSQL *mysql;
zval *mysql_link;
zend_bool automode;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Ob", &mysql_link, mysqli_link_class_entry, &automode) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_CONN(mysql, &mysql_link, MYSQLI_STATUS_VALID);
if (mysql_autocommit(mysql->mysql, (my_bool)automode)) {
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ mysqli_stmt_bind_param_do_bind */
#ifndef MYSQLI_USE_MYSQLND
static
int mysqli_stmt_bind_param_do_bind(MY_STMT *stmt, unsigned int argc, unsigned int num_vars,
zval ***args, unsigned int start, const char * const types TSRMLS_DC)
{
int i, ofs;
MYSQL_BIND *bind;
unsigned long rc;
/* prevent leak if variables are already bound */
if (stmt->param.var_cnt) {
php_free_stmt_bind_buffer(stmt->param, FETCH_SIMPLE);
}
stmt->param.is_null = ecalloc(num_vars, sizeof(char));
bind = (MYSQL_BIND *) ecalloc(num_vars, sizeof(MYSQL_BIND));
ofs = 0;
for (i = start; i < argc; i++) {
/* set specified type */
switch (types[ofs]) {
case 'd': /* Double */
bind[ofs].buffer_type = MYSQL_TYPE_DOUBLE;
bind[ofs].buffer = &Z_DVAL_PP(args[i]);
bind[ofs].is_null = &stmt->param.is_null[ofs];
break;
case 'i': /* Integer */
#if SIZEOF_LONG==8
bind[ofs].buffer_type = MYSQL_TYPE_LONGLONG;
#elif SIZEOF_LONG==4
bind[ofs].buffer_type = MYSQL_TYPE_LONG;
#endif
bind[ofs].buffer = &Z_LVAL_PP(args[i]);
bind[ofs].is_null = &stmt->param.is_null[ofs];
break;
case 'b': /* Blob (send data) */
bind[ofs].buffer_type = MYSQL_TYPE_LONG_BLOB;
/* don't initialize is_null and length to 0 because we use ecalloc */
break;
case 's': /* string */
bind[ofs].buffer_type = MYSQL_TYPE_VAR_STRING;
/* don't initialize buffer and buffer_length because we use ecalloc */
bind[ofs].is_null = &stmt->param.is_null[ofs];
break;
default:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Undefined fieldtype %c (parameter %d)", types[ofs], i+1);
rc = 1;
goto end_1;
}
ofs++;
}
rc = mysql_stmt_bind_param(stmt->stmt, bind);
end_1:
if (rc) {
efree(stmt->param.is_null);
} else {
stmt->param.var_cnt = num_vars;
stmt->param.vars = (zval **)safe_emalloc(num_vars, sizeof(zval), 0);
for (i = 0; i < num_vars; i++) {
if (bind[i].buffer_type != MYSQL_TYPE_LONG_BLOB) {
Z_ADDREF_P(*args[i+start]);
stmt->param.vars[i] = *args[i+start];
} else {
stmt->param.vars[i] = NULL;
}
}
}
efree(bind);
return rc;
}
#else
static
int mysqli_stmt_bind_param_do_bind(MY_STMT *stmt, unsigned int argc, unsigned int num_vars,
zval ***args, unsigned int start, const char * const types TSRMLS_DC)
{
unsigned int i;
MYSQLND_PARAM_BIND *params;
enum_func_status ret = FAIL;
/* If no params -> skip binding and return directly */
if (argc == start) {
return PASS;
}
params = mysqlnd_stmt_alloc_param_bind(stmt->stmt);
if (!params) {
goto end;
}
for (i = 0; i < (argc - start); i++) {
zend_uchar type;
switch (types[i]) {
case 'd': /* Double */
type = MYSQL_TYPE_DOUBLE;
break;
case 'i': /* Integer */
#if SIZEOF_LONG==8
type = MYSQL_TYPE_LONGLONG;
#elif SIZEOF_LONG==4
type = MYSQL_TYPE_LONG;
#endif
break;
case 'b': /* Blob (send data) */
type = MYSQL_TYPE_LONG_BLOB;
break;
case 's': /* string */
type = MYSQL_TYPE_VAR_STRING;
break;
default:
/* We count parameters from 1 */
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Undefined fieldtype %c (parameter %d)", types[i], i + start + 1);
ret = FAIL;
mysqlnd_stmt_free_param_bind(stmt->stmt, params);
goto end;
}
params[i].zv = *(args[i + start]);
params[i].type = type;
}
ret = mysqlnd_stmt_bind_param(stmt->stmt, params);
end:
return ret;
}
#endif
/* }}} */
/* {{{ proto bool mysqli_stmt_bind_param(object stmt, string types, mixed variable [,mixed,....]) U
Bind variables to a prepared statement as parameters */
PHP_FUNCTION(mysqli_stmt_bind_param)
{
zval ***args;
int argc = ZEND_NUM_ARGS();
int num_vars;
int start = 2;
MY_STMT *stmt;
zval *mysql_stmt;
char *types;
int types_len;
unsigned long rc;
/* calculate and check number of parameters */
if (argc < 2) {
/* there has to be at least one pair */
WRONG_PARAM_COUNT;
}
if (zend_parse_method_parameters((getThis()) ? 1:2 TSRMLS_CC, getThis(), "Os", &mysql_stmt, mysqli_stmt_class_entry,
&types, &types_len) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_STMT(stmt, &mysql_stmt, MYSQLI_STATUS_VALID);
num_vars = argc - 1;
if (getThis()) {
start = 1;
} else {
/* ignore handle parameter in procedural interface*/
--num_vars;
}
if (!types_len) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid type or no types specified");
RETURN_FALSE;
}
if (types_len != argc - start) {
/* number of bind variables doesn't match number of elements in type definition string */
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Number of elements in type definition string doesn't match number of bind variables");
RETURN_FALSE;
}
if (types_len != mysql_stmt_param_count(stmt->stmt)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Number of variables doesn't match number of parameters in prepared statement");
RETURN_FALSE;
}
args = (zval ***)safe_emalloc(argc, sizeof(zval **), 0);
if (zend_get_parameters_array_ex(argc, args) == FAILURE) {
zend_wrong_param_count(TSRMLS_C);
rc = 1;
} else {
rc = mysqli_stmt_bind_param_do_bind(stmt, argc, num_vars, args, start, types TSRMLS_CC);
MYSQLI_REPORT_STMT_ERROR(stmt->stmt);
}
efree(args);
RETURN_BOOL(!rc);
}
/* }}} */
/* {{{ mysqli_stmt_bind_result_do_bind */
#ifndef MYSQLI_USE_MYSQLND
/* TODO:
do_alloca, free_alloca
*/
static int
mysqli_stmt_bind_result_do_bind(MY_STMT *stmt, zval ***args, unsigned int argc, unsigned int start TSRMLS_DC)
{
MYSQL_BIND *bind;
int i, ofs;
int var_cnt = argc - start;
long col_type;
ulong rc;
/* prevent leak if variables are already bound */
if (stmt->result.var_cnt) {
php_free_stmt_bind_buffer(stmt->result, FETCH_RESULT);
}
bind = (MYSQL_BIND *)ecalloc(var_cnt, sizeof(MYSQL_BIND));
{
int size;
char *p= emalloc(size= var_cnt * (sizeof(char) + sizeof(VAR_BUFFER)));
stmt->result.buf = (VAR_BUFFER *) p;
stmt->result.is_null = p + var_cnt * sizeof(VAR_BUFFER);
memset(p, 0, size);
}
for (i=start; i < var_cnt + start ; i++) {
ofs = i - start;
col_type = (stmt->stmt->fields) ? stmt->stmt->fields[ofs].type : MYSQL_TYPE_STRING;
switch (col_type) {
case MYSQL_TYPE_DOUBLE:
case MYSQL_TYPE_FLOAT:
convert_to_double_ex(args[i]);
stmt->result.buf[ofs].type = IS_DOUBLE;
stmt->result.buf[ofs].buflen = sizeof(double);
/* allocate buffer for double */
stmt->result.buf[ofs].val = (char *)emalloc(sizeof(double));
bind[ofs].buffer_type = MYSQL_TYPE_DOUBLE;
bind[ofs].buffer = stmt->result.buf[ofs].val;
bind[ofs].is_null = &stmt->result.is_null[ofs];
break;
case MYSQL_TYPE_NULL:
stmt->result.buf[ofs].type = IS_NULL;
/*
don't initialize to 0 :
1. stmt->result.buf[ofs].buflen
2. bind[ofs].buffer
3. bind[ofs].buffer_length
because memory was allocated with ecalloc
*/
bind[ofs].buffer_type = MYSQL_TYPE_NULL;
bind[ofs].is_null = &stmt->result.is_null[ofs];
break;
case MYSQL_TYPE_SHORT:
case MYSQL_TYPE_TINY:
case MYSQL_TYPE_LONG:
case MYSQL_TYPE_INT24:
case MYSQL_TYPE_YEAR:
convert_to_long_ex(args[i]);
stmt->result.buf[ofs].type = IS_LONG;
/* don't set stmt->result.buf[ofs].buflen to 0, we used ecalloc */
stmt->result.buf[ofs].val = (char *)emalloc(sizeof(int));
bind[ofs].buffer_type = MYSQL_TYPE_LONG;
bind[ofs].buffer = stmt->result.buf[ofs].val;
bind[ofs].is_null = &stmt->result.is_null[ofs];
bind[ofs].is_unsigned = (stmt->stmt->fields[ofs].flags & UNSIGNED_FLAG) ? 1 : 0;
break;
case MYSQL_TYPE_LONGLONG:
#if MYSQL_VERSION_ID > 50002 || defined(MYSQLI_USE_MYSQLND)
case MYSQL_TYPE_BIT:
#endif
stmt->result.buf[ofs].type = IS_STRING;
stmt->result.buf[ofs].buflen = sizeof(my_ulonglong);
stmt->result.buf[ofs].val = (char *)emalloc(stmt->result.buf[ofs].buflen);
bind[ofs].buffer_type = col_type;
bind[ofs].buffer = stmt->result.buf[ofs].val;
bind[ofs].is_null = &stmt->result.is_null[ofs];
bind[ofs].buffer_length = stmt->result.buf[ofs].buflen;
bind[ofs].is_unsigned = (stmt->stmt->fields[ofs].flags & UNSIGNED_FLAG) ? 1 : 0;
bind[ofs].length = &stmt->result.buf[ofs].output_len;
break;
case MYSQL_TYPE_DATE:
case MYSQL_TYPE_TIME:
case MYSQL_TYPE_DATETIME:
case MYSQL_TYPE_NEWDATE:
case MYSQL_TYPE_VAR_STRING:
case MYSQL_TYPE_STRING:
case MYSQL_TYPE_TINY_BLOB:
case MYSQL_TYPE_BLOB:
case MYSQL_TYPE_MEDIUM_BLOB:
case MYSQL_TYPE_LONG_BLOB:
case MYSQL_TYPE_TIMESTAMP:
case MYSQL_TYPE_DECIMAL:
case MYSQL_TYPE_GEOMETRY:
#ifdef FIELD_TYPE_NEWDECIMAL
case MYSQL_TYPE_NEWDECIMAL:
#endif
{
#if MYSQL_VERSION_ID >= 50107
/* Changed to my_bool in MySQL 5.1. See MySQL Bug #16144 */
my_bool tmp;
#else
ulong tmp = 0;
#endif
stmt->result.buf[ofs].type = IS_STRING;
/*
If the user has called $stmt->store_result() then we have asked
max_length to be updated. this is done only for BLOBS because we don't want to allocate
big chunkgs of memory 2^16 or 2^24
*/
if (stmt->stmt->fields[ofs].max_length == 0 &&
!mysql_stmt_attr_get(stmt->stmt, STMT_ATTR_UPDATE_MAX_LENGTH, &tmp) && !tmp)
{
/*
Allocate directly 256 because it's easier to allocate a bit more
than update max length even for text columns. Try SELECT UNION SELECT UNION with
different lengths and you will see that we get different lengths in stmt->stmt->fields[ofs].length
The just take 256 and saves us from realloc-ing.
*/
stmt->result.buf[ofs].buflen =
(stmt->stmt->fields) ? (stmt->stmt->fields[ofs].length) ? stmt->stmt->fields[ofs].length + 1: 256: 256;
} else {
/*
the user has called store_result(). if he does not there is no way to determine the
libmysql does not allow us to allocate 0 bytes for a buffer so we try 1
*/
if (!(stmt->result.buf[ofs].buflen = stmt->stmt->fields[ofs].max_length))
++stmt->result.buf[ofs].buflen;
}
stmt->result.buf[ofs].val = (char *)emalloc(stmt->result.buf[ofs].buflen);
bind[ofs].buffer_type = MYSQL_TYPE_STRING;
bind[ofs].buffer = stmt->result.buf[ofs].val;
bind[ofs].is_null = &stmt->result.is_null[ofs];
bind[ofs].buffer_length = stmt->result.buf[ofs].buflen;
bind[ofs].length = &stmt->result.buf[ofs].output_len;
break;
}
default:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Server returned unknown type %ld. Probably your client library is incompatible with the server version you use!", col_type);
break;
}
}
rc = mysql_stmt_bind_result(stmt->stmt, bind);
MYSQLI_REPORT_STMT_ERROR(stmt->stmt);
if (rc) {
/* dont close the statement or subsequent usage (for example ->execute()) will lead to crash */
for (i=0; i < var_cnt ; i++) {
if (stmt->result.buf[i].val) {
efree(stmt->result.buf[i].val);
}
}
/* Don't free stmt->result.is_null because is_null & buf are one block of memory */
efree(stmt->result.buf);
} else {
stmt->result.var_cnt = var_cnt;
stmt->result.vars = (zval **)safe_emalloc((var_cnt), sizeof(zval), 0);
for (i = start; i < var_cnt+start; i++) {
ofs = i-start;
Z_ADDREF_PP(args[i]);
stmt->result.vars[ofs] = *args[i];
}
}
efree(bind);
return rc;
}
#else
static int
mysqli_stmt_bind_result_do_bind(MY_STMT *stmt, zval ***args, unsigned int argc, unsigned int start TSRMLS_DC)
{
unsigned int i;
MYSQLND_RESULT_BIND * params = mysqlnd_stmt_alloc_result_bind(stmt->stmt);
if (params) {
for (i = 0; i < (argc - start); i++) {
params[i].zv = *(args[i + start]);
}
return mysqlnd_stmt_bind_result(stmt->stmt, params);
}
return FAIL;
}
#endif
/* }}} */
/* {{{ proto bool mysqli_stmt_bind_result(object stmt, mixed var, [,mixed, ...]) U
Bind variables to a prepared statement for result storage */
PHP_FUNCTION(mysqli_stmt_bind_result)
{
zval ***args;
int argc = ZEND_NUM_ARGS();
int start = 1;
ulong rc;
MY_STMT *stmt;
zval *mysql_stmt;
if (getThis()) {
start = 0;
}
if (zend_parse_method_parameters((getThis()) ? 0:1 TSRMLS_CC, getThis(), "O", &mysql_stmt, mysqli_stmt_class_entry) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_STMT(stmt, &mysql_stmt, MYSQLI_STATUS_VALID);
if (argc < (getThis() ? 1 : 2)) {
WRONG_PARAM_COUNT;
}
if ((argc - start) != mysql_stmt_field_count(stmt->stmt)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Number of bind variables doesn't match number of fields in prepared statement");
RETURN_FALSE;
}
args = (zval ***)safe_emalloc(argc, sizeof(zval **), 0);
if (zend_get_parameters_array_ex(argc, args) == FAILURE) {
efree(args);
WRONG_PARAM_COUNT;
}
rc = mysqli_stmt_bind_result_do_bind(stmt, args, argc, start TSRMLS_CC);
efree(args);
RETURN_BOOL(!rc);
}
/* }}} */
/* {{{ proto bool mysqli_change_user(object link, string user, string password, string database)
Change logged-in user of the active connection */
PHP_FUNCTION(mysqli_change_user)
{
MY_MYSQL *mysql;
zval *mysql_link = NULL;
char *user, *password, *dbname;
int user_len, password_len, dbname_len;
ulong rc;
#if !defined(MYSQLI_USE_MYSQLND) && defined(HAVE_MYSQLI_SET_CHARSET)
const CHARSET_INFO * old_charset;
#endif
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Osss", &mysql_link, mysqli_link_class_entry, &user, &user_len, &password, &password_len, &dbname, &dbname_len) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_CONN(mysql, &mysql_link, MYSQLI_STATUS_VALID);
#if !defined(MYSQLI_USE_MYSQLND) && defined(HAVE_MYSQLI_SET_CHARSET)
old_charset = mysql->mysql->charset;
#endif
#if defined(MYSQLI_USE_MYSQLND)
rc = mysqlnd_change_user_ex(mysql->mysql, user, password, dbname, FALSE, (size_t) password_len);
#else
rc = mysql_change_user(mysql->mysql, user, password, dbname);
#endif
MYSQLI_REPORT_MYSQL_ERROR(mysql->mysql);
if (rc) {
RETURN_FALSE;
}
#if !defined(MYSQLI_USE_MYSQLND) && defined(HAVE_MYSQLI_SET_CHARSET)
if (mysql_get_server_version(mysql->mysql) < 501023L) {
/*
Request the current charset, or it will be reset to the system one.
5.0 doesn't support it. Support added in 5.1.23 by fixing the following bug :
Bug #30472 libmysql doesn't reset charset, insert_id after succ. mysql_change_user() call
*/
rc = mysql_set_character_set(mysql->mysql, old_charset->csname);
}
#endif
RETURN_TRUE;
}
/* }}} */
/* {{{ proto string mysqli_character_set_name(object link)
Returns the name of the character set used for this connection */
PHP_FUNCTION(mysqli_character_set_name)
{
MY_MYSQL *mysql;
zval *mysql_link;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_CONN(mysql, &mysql_link, MYSQLI_STATUS_VALID);
RETURN_STRING((char *)mysql_character_set_name(mysql->mysql), 1);
}
/* }}} */
/* {{{ php_mysqli_close */
void php_mysqli_close(MY_MYSQL * mysql, int close_type, int resource_status TSRMLS_DC)
{
if (resource_status > MYSQLI_STATUS_INITIALIZED) {
MyG(num_links)--;
}
if (!mysql->persistent) {
mysqli_close(mysql->mysql, close_type);
} else {
zend_rsrc_list_entry *le;
if (zend_hash_find(&EG(persistent_list), mysql->hash_key, strlen(mysql->hash_key) + 1, (void **)&le) == SUCCESS) {
if (Z_TYPE_P(le) == php_le_pmysqli()) {
mysqli_plist_entry *plist = (mysqli_plist_entry *) le->ptr;
#if defined(MYSQLI_USE_MYSQLND)
mysqlnd_end_psession(mysql->mysql);
#endif
zend_ptr_stack_push(&plist->free_links, mysql->mysql);
MyG(num_active_persistent)--;
MyG(num_inactive_persistent)++;
}
}
mysql->persistent = FALSE;
}
mysql->mysql = NULL;
php_clear_mysql(mysql);
}
/* }}} */
/* {{{ proto bool mysqli_close(object link)
Close connection */
PHP_FUNCTION(mysqli_close)
{
zval *mysql_link;
MY_MYSQL *mysql;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_CONN(mysql, &mysql_link, MYSQLI_STATUS_INITIALIZED);
php_mysqli_close(mysql, MYSQLI_CLOSE_EXPLICIT, ((MYSQLI_RESOURCE *)((mysqli_object *)zend_object_store_get_object(mysql_link TSRMLS_CC))->ptr)->status TSRMLS_CC);
((MYSQLI_RESOURCE *)((mysqli_object *)zend_object_store_get_object(mysql_link TSRMLS_CC))->ptr)->status = MYSQLI_STATUS_UNKNOWN;
MYSQLI_CLEAR_RESOURCE(&mysql_link);
efree(mysql);
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool mysqli_commit(object link)
Commit outstanding actions and close transaction */
PHP_FUNCTION(mysqli_commit)
{
MY_MYSQL *mysql;
zval *mysql_link;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_CONN(mysql, &mysql_link, MYSQLI_STATUS_VALID);
if (mysql_commit(mysql->mysql)) {
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool mysqli_data_seek(object result, int offset)
Move internal result pointer */
PHP_FUNCTION(mysqli_data_seek)
{
MYSQL_RES *result;
zval *mysql_result;
long offset;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Ol", &mysql_result, mysqli_result_class_entry, &offset) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE(result, MYSQL_RES *, &mysql_result, "mysqli_result", MYSQLI_STATUS_VALID);
if (mysqli_result_is_unbuffered(result)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Function cannot be used with MYSQL_USE_RESULT");
RETURN_FALSE;
}
if (offset < 0 || offset >= mysql_num_rows(result)) {
RETURN_FALSE;
}
mysql_data_seek(result, offset);
RETURN_TRUE;
}
/* }}} */
/* {{{ proto void mysqli_debug(string debug) U
*/
PHP_FUNCTION(mysqli_debug)
{
char *debug;
int debug_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &debug, &debug_len) == FAILURE) {
return;
}
mysql_debug(debug);
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool mysqli_dump_debug_info(object link)
*/
PHP_FUNCTION(mysqli_dump_debug_info)
{
MY_MYSQL *mysql;
zval *mysql_link;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_CONN(mysql, &mysql_link, MYSQLI_STATUS_VALID);
RETURN_BOOL(!mysql_dump_debug_info(mysql->mysql))
}
/* }}} */
/* {{{ proto int mysqli_errno(object link)
Returns the numerical value of the error message from previous MySQL operation */
PHP_FUNCTION(mysqli_errno)
{
MY_MYSQL *mysql;
zval *mysql_link;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_CONN(mysql, &mysql_link, MYSQLI_STATUS_VALID);
RETURN_LONG(mysql_errno(mysql->mysql));
}
/* }}} */
/* {{{ proto string mysqli_error(object link)
Returns the text of the error message from previous MySQL operation */
PHP_FUNCTION(mysqli_error)
{
MY_MYSQL *mysql;
zval *mysql_link;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O", &mysql_link, mysqli_link_class_entry) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_CONN(mysql, &mysql_link, MYSQLI_STATUS_VALID);
RETURN_STRING((char *)mysql_error(mysql->mysql),1);
}
/* }}} */
#ifndef MYSQLI_USE_MYSQLND
/* {{{ php_mysqli_stmt_copy_it */
static void
php_mysqli_stmt_copy_it(zval *** copies, zval *original, uint param_count, uint current)
{
if (!*copies) {
*copies = ecalloc(param_count, sizeof(zval *));
}
MAKE_STD_ZVAL((*copies)[current]);
*(*copies)[current] = *original;
Z_SET_REFCOUNT_P((*copies)[current], 1);
zval_copy_ctor((*copies)[current]);
}
/* }}} */
#endif
/* {{{ proto bool mysqli_stmt_execute(object stmt)
Execute a prepared statement */
PHP_FUNCTION(mysqli_stmt_execute)
{
MY_STMT *stmt;
zval *mysql_stmt;
#ifndef MYSQLI_USE_MYSQLND
unsigned int i;
zval **copies = NULL;
#endif
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O", &mysql_stmt, mysqli_stmt_class_entry) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_STMT(stmt, &mysql_stmt, MYSQLI_STATUS_VALID);
#ifndef MYSQLI_USE_MYSQLND
if (stmt->param.var_cnt) {
int j;
for (i = 0; i < stmt->param.var_cnt; i++) {
for (j = i + 1; j < stmt->param.var_cnt; j++) {
/* Oops, someone binding the same variable - clone */
if (stmt->param.vars[j] == stmt->param.vars[i] && stmt->param.vars[i]) {
php_mysqli_stmt_copy_it(&copies, stmt->param.vars[i], stmt->param.var_cnt, i);
break;
}
}
}
}
for (i = 0; i < stmt->param.var_cnt; i++) {
if (stmt->param.vars[i]) {
if ( !(stmt->param.is_null[i] = (stmt->param.vars[i]->type == IS_NULL)) ) {
zval *the_var = copies && copies[i]? copies[i]:stmt->param.vars[i];
switch (stmt->stmt->params[i].buffer_type) {
case MYSQL_TYPE_VAR_STRING:
if (the_var == stmt->param.vars[i] && Z_TYPE_P(stmt->param.vars[i]) != IS_STRING) {
php_mysqli_stmt_copy_it(&copies, stmt->param.vars[i], stmt->param.var_cnt, i);
the_var = copies[i];
}
convert_to_string_ex(&the_var);
stmt->stmt->params[i].buffer = Z_STRVAL_P(the_var);
stmt->stmt->params[i].buffer_length = Z_STRLEN_P(the_var);
break;
case MYSQL_TYPE_DOUBLE:
if (the_var == stmt->param.vars[i] && Z_TYPE_P(stmt->param.vars[i]) != IS_DOUBLE) {
php_mysqli_stmt_copy_it(&copies, stmt->param.vars[i], stmt->param.var_cnt, i);
the_var = copies[i];
}
convert_to_double_ex(&the_var);
stmt->stmt->params[i].buffer = &Z_DVAL_P(the_var);
break;
case MYSQL_TYPE_LONGLONG:
case MYSQL_TYPE_LONG:
if (the_var == stmt->param.vars[i] && Z_TYPE_P(stmt->param.vars[i]) != IS_LONG) {
php_mysqli_stmt_copy_it(&copies, stmt->param.vars[i], stmt->param.var_cnt, i);
the_var = copies[i];
}
convert_to_long_ex(&the_var);
stmt->stmt->params[i].buffer = &Z_LVAL_P(the_var);
break;
default:
break;
}
}
}
}
#endif
if (mysql_stmt_execute(stmt->stmt)) {
MYSQLI_REPORT_STMT_ERROR(stmt->stmt);
RETVAL_FALSE;
} else {
RETVAL_TRUE;
}
#ifndef MYSQLI_USE_MYSQLND
if (copies) {
for (i = 0; i < stmt->param.var_cnt; i++) {
if (copies[i]) {
zval_ptr_dtor(&copies[i]);
}
}
efree(copies);
}
#endif
if (MyG(report_mode) & MYSQLI_REPORT_INDEX) {
php_mysqli_report_index(stmt->query, mysqli_stmt_server_status(stmt->stmt) TSRMLS_CC);
}
}
/* }}} */
#ifndef MYSQLI_USE_MYSQLND
/* {{{ void mysqli_stmt_fetch_libmysql
Fetch results from a prepared statement into the bound variables */
void mysqli_stmt_fetch_libmysql(INTERNAL_FUNCTION_PARAMETERS)
{
MY_STMT *stmt;
zval *mysql_stmt;
unsigned int i;
ulong ret;
unsigned int uval;
my_ulonglong llval;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O", &mysql_stmt, mysqli_stmt_class_entry) == FAILURE) {
return;
}
MYSQLI_FETCH_RESOURCE_STMT(stmt, &mysql_stmt, MYSQLI_STATUS_VALID);
/* reset buffers */
for (i = 0; i < stmt->result.var_cnt; i++) {
if (stmt->result.buf[i].type == IS_STRING) {
memset(stmt->result.buf[i].val, 0, stmt->result.buf[i].buflen);
}
}
ret = mysql_stmt_fetch(stmt->stmt);
#ifdef MYSQL_DATA_TRUNCATED
if (!ret || ret == MYSQL_DATA_TRUNCATED) {
#else
if (!ret) {
#endif
for (i = 0; i < stmt->result.var_cnt; i++) {
/*
QQ: Isn't it quite better to call zval_dtor(). What if the user has
assigned a resource, or an array to the bound variable? We are going
to leak probably. zval_dtor() will handle also Unicode/Non-unicode mode.
*/
/* Even if the string is of length zero there is one byte alloced so efree() in all cases */
if (Z_TYPE_P(stmt->result.vars[i]) == IS_STRING) {
STR_FREE(stmt->result.vars[i]->value.str.val);
}
if (!stmt->result.is_null[i]) {
switch (stmt->result.buf[i].type) {
case IS_LONG:
if ((stmt->stmt->fields[i].type == MYSQL_TYPE_LONG)
&& (stmt->stmt->fields[i].flags & UNSIGNED_FLAG))
{
/* unsigned int (11) */
uval= *(unsigned int *) stmt->result.buf[i].val;
#if SIZEOF_LONG==4
if (uval > INT_MAX) {
char *tmp, *p;
int j=10;
tmp= emalloc(11);
p= &tmp[9];
do {
*p-- = (uval % 10) + 48;
uval = uval / 10;
} while (--j > 0);
tmp[10]= '\0';
/* unsigned int > INT_MAX is 10 digits - ALWAYS */
ZVAL_STRINGL(stmt->result.vars[i], tmp, 10, 0);
break;
}
#endif
}
if (stmt->stmt->fields[i].flags & UNSIGNED_FLAG) {
ZVAL_LONG(stmt->result.vars[i], *(unsigned int *)stmt->result.buf[i].val);
} else {
ZVAL_LONG(stmt->result.vars[i], *(int *)stmt->result.buf[i].val);
}
break;
case IS_DOUBLE:
ZVAL_DOUBLE(stmt->result.vars[i], *(double *)stmt->result.buf[i].val);
break;
case IS_STRING:
if (stmt->stmt->bind[i].buffer_type == MYSQL_TYPE_LONGLONG
#if MYSQL_VERSION_ID > 50002
|| stmt->stmt->bind[i].buffer_type == MYSQL_TYPE_BIT
#endif
) {
my_bool uns= (stmt->stmt->fields[i].flags & UNSIGNED_FLAG)? 1:0;
#if MYSQL_VERSION_ID > 50002
if (stmt->stmt->bind[i].buffer_type == MYSQL_TYPE_BIT) {
switch (stmt->result.buf[i].output_len) {
case 8:llval = (my_ulonglong) bit_uint8korr(stmt->result.buf[i].val);break;
case 7:llval = (my_ulonglong) bit_uint7korr(stmt->result.buf[i].val);break;
case 6:llval = (my_ulonglong) bit_uint6korr(stmt->result.buf[i].val);break;
case 5:llval = (my_ulonglong) bit_uint5korr(stmt->result.buf[i].val);break;
case 4:llval = (my_ulonglong) bit_uint4korr(stmt->result.buf[i].val);break;
case 3:llval = (my_ulonglong) bit_uint3korr(stmt->result.buf[i].val);break;
case 2:llval = (my_ulonglong) bit_uint2korr(stmt->result.buf[i].val);break;
case 1:llval = (my_ulonglong) uint1korr(stmt->result.buf[i].val);break;
}
} else
#endif
{
llval= *(my_ulonglong *) stmt->result.buf[i].val;
}
#if SIZEOF_LONG==8
if (uns && llval > 9223372036854775807L) {
#elif SIZEOF_LONG==4
if ((uns && llval > L64(2147483647)) ||
(!uns && (( L64(2147483647) < (my_longlong) llval) ||
(L64(-2147483648) > (my_longlong) llval))))
{
#endif
char tmp[22];
/* even though lval is declared as unsigned, the value
* may be negative. Therefor we cannot use MYSQLI_LLU_SPEC and must
* use MYSQLI_LL_SPEC.
*/
snprintf(tmp, sizeof(tmp), (stmt->stmt->fields[i].flags & UNSIGNED_FLAG)? MYSQLI_LLU_SPEC : MYSQLI_LL_SPEC, llval);
ZVAL_STRING(stmt->result.vars[i], tmp, 1);
} else {
ZVAL_LONG(stmt->result.vars[i], llval);
}
} else {
#if defined(MYSQL_DATA_TRUNCATED) && MYSQL_VERSION_ID > 50002
if (ret == MYSQL_DATA_TRUNCATED && *(stmt->stmt->bind[i].error) != 0) {
/* result was truncated */
ZVAL_STRINGL(stmt->result.vars[i], stmt->result.buf[i].val,
stmt->stmt->bind[i].buffer_length, 1);
} else {
#else
{
#endif
ZVAL_STRINGL(stmt->result.vars[i], stmt->result.buf[i].val,
stmt->result.buf[i].output_len, 1);
}
}
break;
default:
break;
}
} else {
ZVAL_NULL(stmt->result.vars[i]);
}
}
} else {
MYSQLI_REPORT_STMT_ERROR(stmt->stmt);
}
switch (ret) {
case 0:
#ifdef MYSQL_DATA_TRUNCATED
/* according to SQL standard truncation (e.g. loss of precision is
not an error) - for detecting possible truncation you have to
check mysqli_stmt_warning
*/