mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-24 15:46:49 +03:00
82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
/****************************************************************************
|
|
*
|
|
* Open Watcom Project
|
|
*
|
|
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
|
|
*
|
|
* ========================================================================
|
|
*
|
|
* This file contains Original Code and/or Modifications of Original
|
|
* Code as defined in and that are subject to the Sybase Open Watcom
|
|
* Public License version 1.0 (the 'License'). You may not use this file
|
|
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
|
|
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
|
|
* provided with the Original Code and Modifications, and is also
|
|
* available at www.sybase.com/developer/opensource.
|
|
*
|
|
* The Original Code and all software distributed under the License are
|
|
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
|
|
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
|
|
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
|
|
* NON-INFRINGEMENT. Please see the License for the specific language
|
|
* governing rights and limitations under the License.
|
|
*
|
|
* ========================================================================
|
|
*
|
|
* Description: Implementation of scanf_s() - safe formatted stream input.
|
|
*
|
|
****************************************************************************/
|
|
|
|
|
|
#include "variety.h"
|
|
#include "saferlib.h"
|
|
#include "widechar.h"
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
#include <wchar.h>
|
|
#include "scanf.h"
|
|
|
|
|
|
static int cget_stdin( PTR_SCNF_SPECS specs )
|
|
{
|
|
int c;
|
|
|
|
if( (c = __F_NAME(getc,getwc)( stdin )) == __F_NAME(EOF,WEOF) ) {
|
|
specs->eoinp = 1;
|
|
}
|
|
return( c );
|
|
}
|
|
|
|
|
|
static void uncget_stdin( int c, PTR_SCNF_SPECS specs )
|
|
{
|
|
__F_NAME(ungetc,ungetwc)( c, stdin );
|
|
}
|
|
|
|
|
|
_WCRTLINK int __F_NAME(scanf_s,wscanf_s)( const CHAR_TYPE * __restrict format, ... )
|
|
{
|
|
va_list arg;
|
|
SCNF_SPECS specs;
|
|
const char *msg;
|
|
int rc;
|
|
|
|
/* Basic check for null pointers to see if we can continue */
|
|
if( __check_constraint_nullptr_msg( msg, format ) ) {
|
|
|
|
specs.cget_rtn = cget_stdin;
|
|
specs.uncget_rtn = uncget_stdin;
|
|
msg = NULL;
|
|
va_start( arg, format );
|
|
rc = __F_NAME(__scnf_s,__wscnf_s)( (PTR_SCNF_SPECS)&specs, format, &msg, arg );
|
|
va_end( arg );
|
|
if( msg == NULL ) {
|
|
/* no rt-constraint violation inside worker routine */
|
|
return( rc );
|
|
}
|
|
}
|
|
__rtct_fail( __func__, msg, NULL );
|
|
return( __F_NAME(EOF,WEOF) );
|
|
}
|