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503 lines
12 KiB
C
503 lines
12 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 7 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2018 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: Wez Furlong <wez@php.net> |
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| Frank M. Kromann <frank@kromann.info> |
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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/php_string.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_dblib.h"
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#include "php_pdo_dblib_int.h"
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#include "zend_exceptions.h"
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/* {{{ pdo_dblib_get_field_name
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*
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* Return the data type name for a given TDS number
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*
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*/
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static char *pdo_dblib_get_field_name(int type)
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{
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/*
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* I don't return dbprtype(type) because it does not fully describe the type
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* (example: varchar is reported as char by dbprtype)
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*
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* FIX ME: Cache datatypes from server systypes table in pdo_dblib_handle_factory()
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* to make this future proof.
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*/
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switch (type) {
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case 31: return "nvarchar";
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case 34: return "image";
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case 35: return "text";
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case 36: return "uniqueidentifier";
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case 37: return "varbinary"; /* & timestamp - Sybase AS12 */
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case 38: return "bigint"; /* & bigintn - Sybase AS12 */
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case 39: return "varchar"; /* & sysname & nvarchar - Sybase AS12 */
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case 40: return "date";
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case 41: return "time";
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case 42: return "datetime2";
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case 43: return "datetimeoffset";
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case 45: return "binary"; /* Sybase AS12 */
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case 47: return "char"; /* & nchar & uniqueidentifierstr Sybase AS12 */
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case 48: return "tinyint";
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case 50: return "bit"; /* Sybase AS12 */
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case 52: return "smallint";
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case 55: return "decimal"; /* Sybase AS12 */
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case 56: return "int";
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case 58: return "smalldatetime";
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case 59: return "real";
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case 60: return "money";
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case 61: return "datetime";
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case 62: return "float";
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case 63: return "numeric"; /* or uint, ubigint, usmallint Sybase AS12 */
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case 98: return "sql_variant";
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case 99: return "ntext";
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case 104: return "bit";
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case 106: return "decimal"; /* decimal n on sybase */
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case 108: return "numeric"; /* numeric n on sybase */
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case 122: return "smallmoney";
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case 127: return "bigint";
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case 165: return "varbinary";
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case 167: return "varchar";
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case 173: return "binary";
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case 175: return "char";
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case 189: return "timestamp";
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case 231: return "nvarchar";
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case 239: return "nchar";
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case 240: return "geometry";
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case 241: return "xml";
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default: return "unknown";
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}
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}
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/* }}} */
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static int pdo_dblib_stmt_cursor_closer(pdo_stmt_t *stmt)
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{
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pdo_dblib_stmt *S = (pdo_dblib_stmt*)stmt->driver_data;
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pdo_dblib_db_handle *H = S->H;
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/* Cancel any pending results */
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dbcancel(H->link);
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pdo_dblib_err_dtor(&H->err);
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return 1;
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}
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static int pdo_dblib_stmt_dtor(pdo_stmt_t *stmt)
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{
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pdo_dblib_stmt *S = (pdo_dblib_stmt*)stmt->driver_data;
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pdo_dblib_err_dtor(&S->err);
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efree(S);
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return 1;
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}
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static int pdo_dblib_stmt_next_rowset_no_cancel(pdo_stmt_t *stmt)
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{
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pdo_dblib_stmt *S = (pdo_dblib_stmt*)stmt->driver_data;
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pdo_dblib_db_handle *H = S->H;
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RETCODE ret;
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ret = dbresults(H->link);
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if (FAIL == ret) {
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pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "PDO_DBLIB: dbresults() returned FAIL");
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return 0;
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}
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if(NO_MORE_RESULTS == ret) {
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return 0;
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}
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stmt->row_count = DBCOUNT(H->link);
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stmt->column_count = dbnumcols(H->link);
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return 1;
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}
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static int pdo_dblib_stmt_next_rowset(pdo_stmt_t *stmt)
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{
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pdo_dblib_stmt *S = (pdo_dblib_stmt*)stmt->driver_data;
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pdo_dblib_db_handle *H = S->H;
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RETCODE ret = SUCCESS;
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/* Ideally use dbcanquery here, but there is a bug in FreeTDS's implementation of dbcanquery
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* It has been resolved but is currently only available in nightly builds
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*/
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while (NO_MORE_ROWS != ret) {
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ret = dbnextrow(H->link);
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if (FAIL == ret) {
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pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "PDO_DBLIB: dbnextrow() returned FAIL");
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return 0;
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}
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}
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return pdo_dblib_stmt_next_rowset_no_cancel(stmt);
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}
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static int pdo_dblib_stmt_execute(pdo_stmt_t *stmt)
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{
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pdo_dblib_stmt *S = (pdo_dblib_stmt*)stmt->driver_data;
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pdo_dblib_db_handle *H = S->H;
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dbsetuserdata(H->link, (BYTE*) &S->err);
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pdo_dblib_stmt_cursor_closer(stmt);
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if (FAIL == dbcmd(H->link, stmt->active_query_string)) {
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return 0;
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}
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if (FAIL == dbsqlexec(H->link)) {
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return 0;
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}
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pdo_dblib_stmt_next_rowset_no_cancel(stmt);
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stmt->row_count = DBCOUNT(H->link);
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stmt->column_count = dbnumcols(H->link);
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return 1;
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}
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static int pdo_dblib_stmt_fetch(pdo_stmt_t *stmt,
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enum pdo_fetch_orientation ori, zend_long offset)
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{
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RETCODE ret;
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pdo_dblib_stmt *S = (pdo_dblib_stmt*)stmt->driver_data;
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pdo_dblib_db_handle *H = S->H;
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ret = dbnextrow(H->link);
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if (FAIL == ret) {
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pdo_raise_impl_error(stmt->dbh, stmt, "HY000", "PDO_DBLIB: dbnextrow() returned FAIL");
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return 0;
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}
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if(NO_MORE_ROWS == ret) {
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return 0;
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}
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return 1;
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}
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static int pdo_dblib_stmt_describe(pdo_stmt_t *stmt, int colno)
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{
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pdo_dblib_stmt *S = (pdo_dblib_stmt*)stmt->driver_data;
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pdo_dblib_db_handle *H = S->H;
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struct pdo_column_data *col;
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char *fname;
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if(colno >= stmt->column_count || colno < 0) {
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return FAILURE;
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}
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if (colno == 0) {
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S->computed_column_name_count = 0;
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}
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col = &stmt->columns[colno];
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fname = (char*)dbcolname(H->link, colno+1);
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if (fname && *fname) {
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col->name = zend_string_init(fname, strlen(fname), 0);
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} else {
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if (S->computed_column_name_count > 0) {
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char buf[16];
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int len;
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len = snprintf(buf, sizeof(buf), "computed%d", S->computed_column_name_count);
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col->name = zend_string_init(buf, len, 0);
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} else {
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col->name = zend_string_init("computed", strlen("computed"), 0);
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}
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S->computed_column_name_count++;
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}
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col->maxlen = dbcollen(H->link, colno+1);
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col->param_type = PDO_PARAM_ZVAL;
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return 1;
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}
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static int pdo_dblib_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr,
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zend_ulong *len, int *caller_frees)
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{
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pdo_dblib_stmt *S = (pdo_dblib_stmt*)stmt->driver_data;
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pdo_dblib_db_handle *H = S->H;
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int coltype;
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LPBYTE data;
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DBCHAR *tmp_data;
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DBINT data_len, tmp_data_len;
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zval *zv = NULL;
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coltype = dbcoltype(H->link, colno+1);
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data = dbdata(H->link, colno+1);
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data_len = dbdatlen(H->link, colno+1);
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if (data_len != 0 || data != NULL) {
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/* force stringify if DBBIGINT won't fit in zend_long */
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/* this should only be an issue for 32-bit machines */
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if (stmt->dbh->stringify || (coltype == SQLINT8 && sizeof(zend_long) < sizeof(DBBIGINT))) {
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switch (coltype) {
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case SQLDECIMAL:
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case SQLNUMERIC:
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case SQLMONEY:
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case SQLMONEY4:
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case SQLMONEYN:
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case SQLFLT4:
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case SQLFLT8:
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case SQLINT8:
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case SQLINT4:
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case SQLINT2:
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case SQLINT1:
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case SQLBIT: {
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if (dbwillconvert(coltype, SQLCHAR)) {
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tmp_data_len = 32 + (2 * (data_len)); /* FIXME: We allocate more than we need here */
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tmp_data = emalloc(tmp_data_len);
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data_len = dbconvert(NULL, coltype, data, data_len, SQLCHAR, (LPBYTE) tmp_data, -1);
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zv = emalloc(sizeof(zval));
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ZVAL_STRING(zv, tmp_data);
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efree(tmp_data);
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}
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break;
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}
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}
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}
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if (!zv) {
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switch (coltype) {
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case SQLCHAR:
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case SQLVARCHAR:
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case SQLTEXT: {
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#if ilia_0
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while (data_len>0 && data[data_len-1] == ' ') { /* nuke trailing whitespace */
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data_len--;
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}
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#endif
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}
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case SQLVARBINARY:
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case SQLBINARY:
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case SQLIMAGE: {
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zv = emalloc(sizeof(zval));
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ZVAL_STRINGL(zv, (DBCHAR *) data, data_len);
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break;
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}
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case SQLDATETIME:
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case SQLDATETIM4: {
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int dl;
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DBDATEREC di;
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DBDATEREC dt;
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dbconvert(H->link, coltype, data, -1, SQLDATETIME, (LPBYTE) &dt, -1);
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dbdatecrack(H->link, &di, (DBDATETIME *) &dt);
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dl = spprintf(&tmp_data, 20, "%d-%02d-%02d %02d:%02d:%02d",
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#if defined(PHP_DBLIB_IS_MSSQL) || defined(MSDBLIB)
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di.year, di.month, di.day, di.hour, di.minute, di.second
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#else
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di.dateyear, di.datemonth+1, di.datedmonth, di.datehour, di.dateminute, di.datesecond
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#endif
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);
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zv = emalloc(sizeof(zval));
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ZVAL_STRINGL(zv, tmp_data, dl);
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efree(tmp_data);
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break;
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}
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case SQLFLT4: {
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zv = emalloc(sizeof(zval));
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ZVAL_DOUBLE(zv, *(DBFLT4 *) data);
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break;
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}
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case SQLFLT8: {
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zv = emalloc(sizeof(zval));
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ZVAL_DOUBLE(zv, *(DBFLT8 *) data);
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break;
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}
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case SQLINT8: {
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zv = emalloc(sizeof(zval));
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ZVAL_LONG(zv, *(DBBIGINT *) data);
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break;
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}
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case SQLINT4: {
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zv = emalloc(sizeof(zval));
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ZVAL_LONG(zv, *(DBINT *) data);
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break;
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}
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case SQLINT2: {
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zv = emalloc(sizeof(zval));
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ZVAL_LONG(zv, *(DBSMALLINT *) data);
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break;
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}
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case SQLINT1:
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case SQLBIT: {
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zv = emalloc(sizeof(zval));
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ZVAL_LONG(zv, *(DBTINYINT *) data);
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break;
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}
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case SQLDECIMAL:
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case SQLNUMERIC:
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case SQLMONEY:
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case SQLMONEY4:
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case SQLMONEYN: {
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DBFLT8 float_value;
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dbconvert(NULL, coltype, data, 8, SQLFLT8, (LPBYTE) &float_value, -1);
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zv = emalloc(sizeof(zval));
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ZVAL_DOUBLE(zv, float_value);
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break;
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}
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case SQLUNIQUE: {
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if (H->stringify_uniqueidentifier) {
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/* 36-char hex string representation */
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tmp_data_len = 36;
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tmp_data = safe_emalloc(tmp_data_len, sizeof(char), 1);
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data_len = dbconvert(NULL, SQLUNIQUE, data, data_len, SQLCHAR, (LPBYTE) tmp_data, tmp_data_len);
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php_strtoupper(tmp_data, data_len);
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zv = emalloc(sizeof(zval));
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ZVAL_STRINGL(zv, tmp_data, data_len);
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efree(tmp_data);
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} else {
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/* 16-byte binary representation */
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zv = emalloc(sizeof(zval));
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ZVAL_STRINGL(zv, (DBCHAR *) data, 16);
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}
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break;
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}
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default: {
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if (dbwillconvert(coltype, SQLCHAR)) {
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tmp_data_len = 32 + (2 * (data_len)); /* FIXME: We allocate more than we need here */
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tmp_data = emalloc(tmp_data_len);
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data_len = dbconvert(NULL, coltype, data, data_len, SQLCHAR, (LPBYTE) tmp_data, -1);
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zv = emalloc(sizeof(zval));
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ZVAL_STRING(zv, tmp_data);
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efree(tmp_data);
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}
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break;
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}
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}
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}
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}
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if (zv != NULL) {
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*ptr = (char*)zv;
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*len = sizeof(zval);
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} else {
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*ptr = NULL;
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*len = 0;
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}
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*caller_frees = 1;
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return 1;
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}
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static int pdo_dblib_stmt_get_column_meta(pdo_stmt_t *stmt, zend_long colno, zval *return_value)
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{
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pdo_dblib_stmt *S = (pdo_dblib_stmt*)stmt->driver_data;
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pdo_dblib_db_handle *H = S->H;
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DBTYPEINFO* dbtypeinfo;
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int coltype;
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if(colno >= stmt->column_count || colno < 0) {
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return FAILURE;
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}
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array_init(return_value);
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dbtypeinfo = dbcoltypeinfo(H->link, colno+1);
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if(!dbtypeinfo) return FAILURE;
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coltype = dbcoltype(H->link, colno+1);
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add_assoc_long(return_value, "max_length", dbcollen(H->link, colno+1) );
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add_assoc_long(return_value, "precision", (int) dbtypeinfo->precision );
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add_assoc_long(return_value, "scale", (int) dbtypeinfo->scale );
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add_assoc_string(return_value, "column_source", dbcolsource(H->link, colno+1));
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add_assoc_string(return_value, "native_type", pdo_dblib_get_field_name(coltype));
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add_assoc_long(return_value, "native_type_id", coltype);
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add_assoc_long(return_value, "native_usertype_id", dbcolutype(H->link, colno+1));
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switch (coltype) {
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case SQLBIT:
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case SQLINT1:
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case SQLINT2:
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case SQLINT4:
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add_assoc_long(return_value, "pdo_type", PDO_PARAM_INT);
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break;
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default:
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add_assoc_long(return_value, "pdo_type", PDO_PARAM_STR);
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break;
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}
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return 1;
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}
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struct pdo_stmt_methods dblib_stmt_methods = {
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pdo_dblib_stmt_dtor,
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pdo_dblib_stmt_execute,
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pdo_dblib_stmt_fetch,
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pdo_dblib_stmt_describe,
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pdo_dblib_stmt_get_col,
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NULL, /* param hook */
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NULL, /* set attr */
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NULL, /* get attr */
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pdo_dblib_stmt_get_column_meta, /* meta */
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pdo_dblib_stmt_next_rowset, /* nextrow */
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pdo_dblib_stmt_cursor_closer
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};
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