mirror of
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653 lines
16 KiB
C
Executable File
653 lines
16 KiB
C
Executable File
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2006 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: George Schlossnagle <george@omniti.com> |
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| Wez Furlong <wez@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "php.h"
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#include "php_ini.h"
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#include "ext/standard/info.h"
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#include "pdo/php_pdo.h"
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#include "pdo/php_pdo_driver.h"
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#include "php_pdo_mysql.h"
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#include "php_pdo_mysql_int.h"
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static int pdo_mysql_stmt_dtor(pdo_stmt_t *stmt TSRMLS_DC)
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{
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pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
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if (S->result) {
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/* free the resource */
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mysql_free_result(S->result);
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S->result = NULL;
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}
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if (S->einfo.errmsg) {
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pefree(S->einfo.errmsg, stmt->dbh->is_persistent);
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S->einfo.errmsg = NULL;
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}
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#if HAVE_MYSQL_STMT_PREPARE
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if (S->stmt) {
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mysql_stmt_close(S->stmt);
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S->stmt = NULL;
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}
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if (S->params) {
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efree(S->params);
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efree(S->in_null);
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efree(S->in_length);
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}
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if (S->bound_result)
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{
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int i;
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for (i = 0; i < stmt->column_count; i++) {
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efree(S->bound_result[i].buffer);
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}
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efree(S->bound_result);
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efree(S->out_null);
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efree(S->out_length);
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}
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#endif
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#if HAVE_MYSQL_NEXT_RESULT
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if (S->H->server) {
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while (mysql_more_results(S->H->server)) {
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MYSQL_RES *res;
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if (mysql_next_result(S->H->server) != 0) {
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break;
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}
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res = mysql_store_result(S->H->server);
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if (res) {
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mysql_free_result(res);
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}
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}
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}
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#endif
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efree(S);
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return 1;
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}
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static int pdo_mysql_stmt_execute(pdo_stmt_t *stmt TSRMLS_DC)
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{
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pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
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pdo_mysql_db_handle *H = S->H;
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my_ulonglong row_count;
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#if HAVE_MYSQL_STMT_PREPARE
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int i;
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if (S->stmt) {
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/* (re)bind the parameters */
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if (mysql_stmt_bind_param(S->stmt, S->params)) {
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pdo_mysql_error_stmt(stmt);
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return 0;
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}
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if (mysql_stmt_execute(S->stmt)) {
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pdo_mysql_error_stmt(stmt);
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return 0;
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}
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if (!S->result) {
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/* figure out the result set format, if any */
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S->result = mysql_stmt_result_metadata(S->stmt);
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if (S->result) {
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int calc_max_length = H->buffered && S->max_length == 1;
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S->fields = mysql_fetch_fields(S->result);
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if (S->bound_result) {
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int i;
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for (i = 0; i < stmt->column_count; i++) {
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efree(S->bound_result[i].buffer);
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}
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efree(S->bound_result);
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efree(S->out_null);
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efree(S->out_length);
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}
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stmt->column_count = (int)mysql_num_fields(S->result);
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S->bound_result = ecalloc(stmt->column_count, sizeof(MYSQL_BIND));
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S->out_null = ecalloc(stmt->column_count, sizeof(my_bool));
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S->out_length = ecalloc(stmt->column_count, sizeof(unsigned long));
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/* summon memory to hold the row */
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for (i = 0; i < stmt->column_count; i++) {
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if (calc_max_length && S->fields[i].type == FIELD_TYPE_BLOB) {
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my_bool on = 1;
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mysql_stmt_attr_set(S->stmt, STMT_ATTR_UPDATE_MAX_LENGTH, &on);
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calc_max_length = 0;
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}
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switch (S->fields[i].type) {
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case FIELD_TYPE_INT24:
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S->bound_result[i].buffer_length = MAX_MEDIUMINT_WIDTH;
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break;
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case FIELD_TYPE_LONG:
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S->bound_result[i].buffer_length = MAX_INT_WIDTH;
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break;
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case FIELD_TYPE_LONGLONG:
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S->bound_result[i].buffer_length = MAX_BIGINT_WIDTH;
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break;
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case FIELD_TYPE_TINY:
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S->bound_result[i].buffer_length = MAX_TINYINT_WIDTH;
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break;
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case FIELD_TYPE_SHORT:
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S->bound_result[i].buffer_length = MAX_SMALLINT_WIDTH;
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break;
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default:
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S->bound_result[i].buffer_length =
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S->fields[i].max_length? S->fields[i].max_length:
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S->fields[i].length;
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/* work-around for longtext and alike */
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if (S->bound_result[i].buffer_length > H->max_buffer_size) {
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S->bound_result[i].buffer_length = H->max_buffer_size;
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}
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}
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#if 0
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printf("%d: max_length=%d length=%d buffer_length=%d type=%d\n",
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i,
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S->fields[i].max_length,
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S->fields[i].length,
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S->bound_result[i].buffer_length,
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S->fields[i].type
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);
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#endif
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/* there are cases where the length reported by mysql is too short.
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* eg: when describing a table that contains an enum column. Since
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* we have no way of knowing the true length either, we'll bump up
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* our buffer size to a reasonable size, just in case */
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if (S->fields[i].max_length == 0 && S->bound_result[i].buffer_length < 128 && MYSQL_TYPE_VAR_STRING) {
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S->bound_result[i].buffer_length = 128;
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}
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S->out_length[i] = 0;
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S->bound_result[i].buffer = emalloc(S->bound_result[i].buffer_length);
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S->bound_result[i].is_null = &S->out_null[i];
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S->bound_result[i].length = &S->out_length[i];
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S->bound_result[i].buffer_type = MYSQL_TYPE_STRING;
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}
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if (mysql_stmt_bind_result(S->stmt, S->bound_result)) {
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pdo_mysql_error_stmt(stmt);
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return 0;
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}
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/* if buffered, pre-fetch all the data */
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if (H->buffered) {
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mysql_stmt_store_result(S->stmt);
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}
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}
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}
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row_count = mysql_stmt_affected_rows(S->stmt);
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if (row_count != (my_ulonglong)-1) {
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stmt->row_count = row_count;
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}
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return 1;
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}
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#endif
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/* ensure that we free any previous unfetched results */
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if (S->result) {
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mysql_free_result(S->result);
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S->result = NULL;
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}
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if (mysql_real_query(H->server, stmt->active_query_string, stmt->active_query_stringlen) != 0) {
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pdo_mysql_error_stmt(stmt);
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return 0;
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}
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row_count = mysql_affected_rows(H->server);
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if (row_count == (my_ulonglong)-1) {
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/* we either have a query that returned a result set or an error occured
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lets see if we have access to a result set */
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if (!H->buffered) {
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S->result = mysql_use_result(H->server);
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} else {
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S->result = mysql_store_result(H->server);
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}
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if (NULL == S->result) {
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pdo_mysql_error_stmt(stmt);
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return 0;
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}
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stmt->row_count = 0;
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if (!stmt->executed) {
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stmt->column_count = (int) mysql_num_fields(S->result);
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S->fields = mysql_fetch_fields(S->result);
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}
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} else {
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/* this was a DML or DDL query (INSERT, UPDATE, DELETE, ... */
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stmt->row_count = row_count;
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}
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return 1;
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}
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static int pdo_mysql_stmt_next_rowset(pdo_stmt_t *stmt TSRMLS_DC)
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{
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#if HAVE_MYSQL_NEXT_RESULT
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pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
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pdo_mysql_db_handle *H = S->H;
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my_ulonglong row_count;
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int ret;
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/* ensure that we free any previous unfetched results */
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#if HAVE_MYSQL_STMT_PREPARE
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if (S->stmt) {
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mysql_stmt_free_result(S->stmt);
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}
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#endif
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if (S->result) {
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mysql_free_result(S->result);
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S->result = NULL;
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}
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ret = mysql_next_result(H->server);
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if (ret > 0) {
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pdo_mysql_error_stmt(stmt);
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return 0;
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} else if (ret < 0) {
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/* No more results */
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return 0;
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} else {
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if ((my_ulonglong)-1 == (row_count = mysql_affected_rows(H->server))) {
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pdo_mysql_error_stmt(stmt);
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return 0;
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}
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if (!H->buffered) {
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S->result = mysql_use_result(H->server);
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} else {
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S->result = mysql_store_result(H->server);
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}
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if (NULL == S->result) {
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return 0;
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}
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stmt->row_count = row_count;
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stmt->column_count = (int) mysql_num_fields(S->result);
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S->fields = mysql_fetch_fields(S->result);
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return 1;
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}
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#else
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strcpy(stmt->error_code, "HYC00");
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return 0;
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#endif
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}
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static int pdo_mysql_stmt_param_hook(pdo_stmt_t *stmt, struct pdo_bound_param_data *param,
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enum pdo_param_event event_type TSRMLS_DC)
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{
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#if HAVE_MYSQL_STMT_PREPARE
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pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
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MYSQL_BIND *b;
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if (S->stmt && param->is_param) {
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switch (event_type) {
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case PDO_PARAM_EVT_ALLOC:
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/* sanity check parameter number range */
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if (param->paramno < 0 || param->paramno >= S->num_params) {
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strcpy(stmt->error_code, "HY093");
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return 0;
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}
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b = &S->params[param->paramno];
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param->driver_data = b;
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b->is_null = &S->in_null[param->paramno];
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b->length = &S->in_length[param->paramno];
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return 1;
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case PDO_PARAM_EVT_EXEC_PRE:
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b = (MYSQL_BIND*)param->driver_data;
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*b->is_null = 0;
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if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_NULL ||
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Z_TYPE_P(param->parameter) == IS_NULL) {
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*b->is_null = 1;
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b->buffer_type = MYSQL_TYPE_STRING;
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b->buffer = NULL;
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b->buffer_length = 0;
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*b->length = 0;
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return 1;
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}
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switch (PDO_PARAM_TYPE(param->param_type)) {
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case PDO_PARAM_STMT:
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return 0;
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case PDO_PARAM_LOB:
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if (Z_TYPE_P(param->parameter) == IS_RESOURCE) {
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php_stream *stm;
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php_stream_from_zval_no_verify(stm, ¶m->parameter);
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if (stm) {
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SEPARATE_ZVAL_IF_NOT_REF(¶m->parameter);
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Z_TYPE_P(param->parameter) = IS_STRING;
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Z_STRLEN_P(param->parameter) = php_stream_copy_to_mem(stm,
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&Z_STRVAL_P(param->parameter), PHP_STREAM_COPY_ALL, 0);
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} else {
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pdo_raise_impl_error(stmt->dbh, stmt, "HY105", "Expected a stream resource" TSRMLS_CC);
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return 0;
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}
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}
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/* fall through */
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default:
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;
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}
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switch (Z_TYPE_P(param->parameter)) {
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case IS_STRING:
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b->buffer_type = MYSQL_TYPE_STRING;
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b->buffer = Z_STRVAL_P(param->parameter);
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b->buffer_length = Z_STRLEN_P(param->parameter);
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*b->length = Z_STRLEN_P(param->parameter);
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return 1;
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case IS_LONG:
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b->buffer_type = MYSQL_TYPE_LONG;
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b->buffer = &Z_LVAL_P(param->parameter);
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return 1;
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case IS_DOUBLE:
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b->buffer_type = MYSQL_TYPE_DOUBLE;
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b->buffer = &Z_DVAL_P(param->parameter);
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return 1;
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default:
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return 0;
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}
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}
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}
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#endif
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return 1;
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}
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static int pdo_mysql_stmt_fetch(pdo_stmt_t *stmt,
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enum pdo_fetch_orientation ori, long offset TSRMLS_DC)
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{
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pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
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#if HAVE_MYSQL_STMT_PREPARE
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int ret;
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if (S->stmt) {
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ret = mysql_stmt_fetch(S->stmt);
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#ifdef MYSQL_DATA_TRUNCATED
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if (ret == MYSQL_DATA_TRUNCATED) {
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ret = 0;
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}
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#endif
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if (ret) {
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if (ret != MYSQL_NO_DATA) {
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pdo_mysql_error_stmt(stmt);
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}
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return 0;
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}
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return 1;
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}
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#endif
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if (!S->result) {
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return 0;
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}
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if ((S->current_data = mysql_fetch_row(S->result)) == NULL) {
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if (mysql_errno(S->H->server)) {
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pdo_mysql_error_stmt(stmt);
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}
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return 0;
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}
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S->current_lengths = mysql_fetch_lengths(S->result);
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return 1;
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}
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static int pdo_mysql_stmt_describe(pdo_stmt_t *stmt, int colno TSRMLS_DC)
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{
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pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
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struct pdo_column_data *cols = stmt->columns;
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unsigned int i;
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if (!S->result) {
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return 0;
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}
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if (colno >= stmt->column_count) {
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/* error invalid column */
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return 0;
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}
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/* fetch all on demand, this seems easiest
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** if we've been here before bail out
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*/
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if (cols[0].name) {
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return 1;
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}
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for (i=0; i < stmt->column_count; i++) {
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int namelen;
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namelen = strlen(S->fields[i].name);
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cols[i].precision = S->fields[i].decimals;
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cols[i].maxlen = S->fields[i].length;
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cols[i].namelen = namelen;
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cols[i].name = estrndup(S->fields[i].name, namelen);
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cols[i].param_type = PDO_PARAM_STR;
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}
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return 1;
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}
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static int pdo_mysql_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, unsigned long *len, int *caller_frees TSRMLS_DC)
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{
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pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
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#if HAVE_MYSQL_STMT_PREPARE
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if (!S->stmt) {
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#endif
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if (S->current_data == NULL || !S->result) {
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return 0;
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}
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#if HAVE_MYSQL_STMT_PREPARE
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}
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#endif
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if (colno >= stmt->column_count) {
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/* error invalid column */
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return 0;
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}
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#if HAVE_MYSQL_STMT_PREPARE
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if (S->stmt) {
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if (S->out_null[colno]) {
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*ptr = NULL;
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*len = 0;
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return 1;
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}
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*ptr = S->bound_result[colno].buffer;
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if (S->out_length[colno] > S->bound_result[colno].buffer_length) {
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/* mysql lied about the column width */
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strcpy(stmt->error_code, "01004"); /* truncated */
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S->out_length[colno] = S->bound_result[colno].buffer_length;
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*len = S->out_length[colno];
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return 0;
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}
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*len = S->out_length[colno];
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return 1;
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}
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#endif
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*ptr = S->current_data[colno];
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*len = S->current_lengths[colno];
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return 1;
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}
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static char *type_to_name_native(int type)
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{
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#define PDO_MYSQL_NATIVE_TYPE_NAME(x) case FIELD_TYPE_##x: return #x;
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switch (type) {
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PDO_MYSQL_NATIVE_TYPE_NAME(STRING)
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PDO_MYSQL_NATIVE_TYPE_NAME(VAR_STRING)
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#ifdef MYSQL_HAS_TINY
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PDO_MYSQL_NATIVE_TYPE_NAME(TINY)
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#endif
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PDO_MYSQL_NATIVE_TYPE_NAME(SHORT)
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PDO_MYSQL_NATIVE_TYPE_NAME(LONG)
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PDO_MYSQL_NATIVE_TYPE_NAME(LONGLONG)
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PDO_MYSQL_NATIVE_TYPE_NAME(INT24)
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PDO_MYSQL_NATIVE_TYPE_NAME(FLOAT)
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PDO_MYSQL_NATIVE_TYPE_NAME(DOUBLE)
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PDO_MYSQL_NATIVE_TYPE_NAME(DECIMAL)
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#ifdef FIELD_TYPE_NEWDECIMAL
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PDO_MYSQL_NATIVE_TYPE_NAME(NEWDECIMAL)
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#endif
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#ifdef FIELD_TYPE_GEOMETRY
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PDO_MYSQL_NATIVE_TYPE_NAME(GEOMETRY)
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#endif
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PDO_MYSQL_NATIVE_TYPE_NAME(TIMESTAMP)
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#ifdef MYSQL_HAS_YEAR
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PDO_MYSQL_NATIVE_TYPE_NAME(YEAR)
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#endif
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PDO_MYSQL_NATIVE_TYPE_NAME(SET)
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PDO_MYSQL_NATIVE_TYPE_NAME(ENUM)
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PDO_MYSQL_NATIVE_TYPE_NAME(DATE)
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#ifdef FIELD_TYPE_NEWDATE
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PDO_MYSQL_NATIVE_TYPE_NAME(NEWDATE)
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#endif
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PDO_MYSQL_NATIVE_TYPE_NAME(TIME)
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PDO_MYSQL_NATIVE_TYPE_NAME(DATETIME)
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PDO_MYSQL_NATIVE_TYPE_NAME(TINY_BLOB)
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PDO_MYSQL_NATIVE_TYPE_NAME(MEDIUM_BLOB)
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PDO_MYSQL_NATIVE_TYPE_NAME(LONG_BLOB)
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PDO_MYSQL_NATIVE_TYPE_NAME(BLOB)
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PDO_MYSQL_NATIVE_TYPE_NAME(NULL)
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default:
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return NULL;
|
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}
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}
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static int pdo_mysql_stmt_col_meta(pdo_stmt_t *stmt, long colno, zval *return_value TSRMLS_DC)
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{
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|
pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
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MYSQL_FIELD *F;
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zval *flags;
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char *str;
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|
|
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if (!S->result) {
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|
return FAILURE;
|
|
}
|
|
if (colno >= stmt->column_count) {
|
|
/* error invalid column */
|
|
return FAILURE;
|
|
}
|
|
|
|
array_init(return_value);
|
|
MAKE_STD_ZVAL(flags);
|
|
array_init(flags);
|
|
|
|
F = S->fields + colno;
|
|
|
|
if (F->def) {
|
|
add_assoc_string(return_value, "mysql:def", F->def, 1);
|
|
}
|
|
if (IS_NOT_NULL(F->flags)) {
|
|
add_next_index_string(flags, "not_null", 1);
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|
}
|
|
if (IS_PRI_KEY(F->flags)) {
|
|
add_next_index_string(flags, "primary_key", 1);
|
|
}
|
|
if (F->flags & MULTIPLE_KEY_FLAG) {
|
|
add_next_index_string(flags, "multiple_key", 1);
|
|
}
|
|
if (F->flags & UNIQUE_KEY_FLAG) {
|
|
add_next_index_string(flags, "unique_key", 1);
|
|
}
|
|
if (IS_BLOB(F->flags)) {
|
|
add_next_index_string(flags, "blob", 1);
|
|
}
|
|
str = type_to_name_native(F->type);
|
|
if (str) {
|
|
add_assoc_string(return_value, "native_type", str, 1);
|
|
}
|
|
|
|
add_assoc_zval(return_value, "flags", flags);
|
|
return SUCCESS;
|
|
}
|
|
|
|
static int pdo_mysql_stmt_cursor_closer(pdo_stmt_t *stmt TSRMLS_DC)
|
|
{
|
|
pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
|
|
|
|
if (S->result) {
|
|
mysql_free_result(S->result);
|
|
S->result = NULL;
|
|
}
|
|
#if HAVE_MYSQL_STMT_PREPARE
|
|
if (S->stmt) {
|
|
int retval;
|
|
if (!S->H->buffered) {
|
|
retval = mysql_stmt_close(S->stmt);
|
|
S->stmt = NULL;
|
|
} else {
|
|
retval = mysql_stmt_free_result(S->stmt);
|
|
}
|
|
return retval ? 0 : 1;
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_MYSQL_NEXT_RESULT
|
|
while (mysql_more_results(S->H->server)) {
|
|
MYSQL_RES *res;
|
|
if (mysql_next_result(S->H->server) != 0) {
|
|
break;
|
|
}
|
|
res = mysql_store_result(S->H->server);
|
|
if (res) {
|
|
mysql_free_result(res);
|
|
}
|
|
}
|
|
#endif
|
|
return 1;
|
|
}
|
|
|
|
struct pdo_stmt_methods mysql_stmt_methods = {
|
|
pdo_mysql_stmt_dtor,
|
|
pdo_mysql_stmt_execute,
|
|
pdo_mysql_stmt_fetch,
|
|
pdo_mysql_stmt_describe,
|
|
pdo_mysql_stmt_get_col,
|
|
pdo_mysql_stmt_param_hook,
|
|
NULL, /* set_attr */
|
|
NULL, /* get_attr */
|
|
pdo_mysql_stmt_col_meta,
|
|
pdo_mysql_stmt_next_rowset,
|
|
pdo_mysql_stmt_cursor_closer
|
|
};
|
|
|
|
/*
|
|
* 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
|
|
*/
|