mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-14 02:47:07 +03:00
836c97f0ac
git-svn-id: svn://kolibrios.org@553 a494cfbc-eb01-0410-851d-a64ba20cac60
94 lines
3.1 KiB
C
94 lines
3.1 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 snprintf().
|
|
*
|
|
****************************************************************************/
|
|
|
|
|
|
#include "variety.h"
|
|
#include "widechar.h"
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
#include "printf.h"
|
|
|
|
struct buf_limit {
|
|
CHAR_TYPE *bufptr;
|
|
size_t bufsize;
|
|
};
|
|
|
|
/*
|
|
* buf_putc -- append a character to a string in memory
|
|
*/
|
|
static slib_callback_t buf_putc; // setup calling convention
|
|
static void __SLIB_CALLBACK buf_putc( SPECS __SLIB *specs, int op_char )
|
|
{
|
|
struct buf_limit *bufinfo;
|
|
|
|
bufinfo = (struct buf_limit *)specs->_dest;
|
|
if( specs->_output_count < bufinfo->bufsize ) {
|
|
*( bufinfo->bufptr++ ) = op_char;
|
|
}
|
|
specs->_output_count++;
|
|
}
|
|
|
|
/*
|
|
* buf_count_putc -- only count characters to be output
|
|
*/
|
|
static slib_callback_t buf_count_putc; // setup calling convention
|
|
static void __SLIB_CALLBACK buf_count_putc( SPECS __SLIB *specs, int op_char )
|
|
{
|
|
specs->_output_count++;
|
|
}
|
|
|
|
|
|
_WCRTLINK int __F_NAME(vsnprintf,vsnwprintf) ( CHAR_TYPE *s, size_t bufsize,
|
|
const CHAR_TYPE *format, va_list arg)
|
|
{
|
|
register int len;
|
|
auto struct buf_limit bufinfo;
|
|
|
|
bufinfo.bufptr = s;
|
|
bufinfo.bufsize = bufsize - 1;
|
|
if( bufsize == 0 )
|
|
len = __F_NAME(__prtf,__wprtf)( &bufinfo, format, arg, buf_count_putc );
|
|
else {
|
|
len = __F_NAME(__prtf,__wprtf)( &bufinfo, format, arg, buf_putc );
|
|
s[(( len >= 0 ) && ( len < bufsize )) ? len : bufsize - 1] = '\0';
|
|
}
|
|
return( len );
|
|
}
|
|
|
|
|
|
_WCRTLINK int __F_NAME(snprintf,snwprintf) ( CHAR_TYPE *dest, size_t bufsize,
|
|
const CHAR_TYPE *format, ... )
|
|
{
|
|
auto va_list args;
|
|
|
|
va_start( args, format );
|
|
return( __F_NAME(vsnprintf,vsnwprintf)( dest, bufsize, format, args ) );
|
|
}
|