a3ce60eb3c
We can drop or simplify many conditionals. Change-Id: I37e820e515cc09845c30b62c89ddb3b6ff370f97
147 lines
4.2 KiB
C
147 lines
4.2 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/*
|
|
* This file is part of the LibreOffice project.
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*
|
|
* This file incorporates work covered by the following license notice:
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed
|
|
* with this work for additional information regarding copyright
|
|
* ownership. The ASF licenses this file to you under the Apache
|
|
* License, Version 2.0 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
|
|
*/
|
|
|
|
#define _SNPRINTF_DLLIMPORT __declspec( dllexport )
|
|
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
|
|
#ifdef __MINGW32__
|
|
/* MinGW-w64 doesn't have a _tcsinc() inline or library function */
|
|
#define _MB_MAP_DIRECT
|
|
#endif
|
|
#include <tchar.h>
|
|
#include <systools/win32/snprintf.h>
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning(disable:4273) // inconsistent dll linkage
|
|
#endif
|
|
|
|
#if defined(__MINGW32_VERSION) && ((__MINGW32_MAJOR_VERSION < 3)||((__MINGW32_MAJOR_VERSION == 3)&&(__MINGW32_MINOR_VERSION < 18)))
|
|
|
|
/* The non-debug versions of _vscprintf/_scprintf are just calls
|
|
to _vsprintf/_sprintf with string buffer pointer set to NULL,
|
|
requires MSVCRT version 7.0 */
|
|
#ifdef __MINGW32__
|
|
static int __cdecl _vsctprintf( const TCHAR *format, va_list ap )
|
|
#else
|
|
static int __cdecl _vsctprintf( const _TXCHAR *format, va_list ap )
|
|
#endif
|
|
{
|
|
FILE *fp = _tfopen( _T("NUL"), _T("wb") );
|
|
|
|
if ( fp )
|
|
{
|
|
int retval = _vftprintf( fp, format, ap );
|
|
fclose( fp );
|
|
|
|
return retval;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
#if !defined(__MINGW32__) || defined (__NO_ISOCEXT)
|
|
|
|
/* This function retrieves the pointer to the last character of a buffer.
|
|
That is the pointer to the last character of the buffer that fits
|
|
completly into that buffer or the position of the terminating zero.
|
|
|
|
buffer Pointer to a _TXCHAR buffer to be examined
|
|
count size of the buffer to be examined
|
|
|
|
return The pointer to the last character that fits into the buffer or
|
|
NULL if count is zero or count is one and the first byte was a
|
|
leading DBCS character
|
|
*/
|
|
|
|
static _TCHAR *GetLastBufferChar( _TCHAR *buffer, size_t count )
|
|
{
|
|
_TCHAR *last = NULL;
|
|
_TCHAR *cur = buffer;
|
|
|
|
while ( (size_t)(cur - buffer) < count )
|
|
{
|
|
last = cur;
|
|
|
|
if ( !*last )
|
|
break;
|
|
|
|
cur = _tcsinc(last);
|
|
}
|
|
|
|
return last;
|
|
}
|
|
|
|
/* Implementation of snprintf following the ISO/IEC 9899:1999 (ISO C99) standard */
|
|
|
|
_SNPRINTF_DLLIMPORT int __cdecl vsntprintf( _TCHAR *buffer, size_t count, const _TCHAR *format, va_list list )
|
|
{
|
|
int retval;
|
|
|
|
/* First of all call the existing non POSIX standard function assuming
|
|
the buffer size will be large enough */
|
|
|
|
retval = _vsntprintf( buffer, count, format, list );
|
|
|
|
if ( retval < 0 )
|
|
{
|
|
/* If the buffer wasn't large enough ensure that the buffer will be
|
|
zero terminated */
|
|
|
|
_TCHAR *last = GetLastBufferChar( buffer, count );
|
|
if (last )
|
|
*last = 0;
|
|
|
|
/* Retrieve the count of characters that would have been written
|
|
if the buffer were large enough */
|
|
|
|
retval = _vsctprintf( format, list );
|
|
}
|
|
else if ( (size_t)retval == count && count )
|
|
{
|
|
/* If the buffer was large enough but not large enough for the trailing
|
|
zero make the buffer zero terminated */
|
|
|
|
_TCHAR *last = GetLastBufferChar( buffer, count );
|
|
if (last )
|
|
*last = 0;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
/* Implementation of snprintf following the ISO/IEC 9899:1999 (ISO C99) standard */
|
|
|
|
_SNPRINTF_DLLIMPORT int __cdecl sntprintf( _TCHAR *buffer, size_t count, const _TCHAR *format, ... )
|
|
{
|
|
va_list list;
|
|
int retval;
|
|
|
|
va_start( list, format );
|
|
retval = vsntprintf( buffer, count, format, list );
|
|
va_end( list );
|
|
|
|
return retval;
|
|
}
|
|
|
|
#endif
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|