Sweden-Number/dlls/kernel32/computername.c

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/*
* Win32 kernel functions
*
* Copyright 1995 Martin von Loewis and Cameron Heide
* Copyright 1999 Peter Ganten
* Copyright 2002 Martin Wilck
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include "ntstatus.h"
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#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
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#include "winnls.h"
#include "winternl.h"
#include "wine/exception.h"
#include "kernel_private.h"
/***********************************************************************
* GetComputerNameW (KERNEL32.@)
*/
BOOL WINAPI GetComputerNameW(LPWSTR name,LPDWORD size)
{
BOOL ret = GetComputerNameExW( ComputerNameNetBIOS, name, size );
if (!ret && GetLastError() == ERROR_MORE_DATA) SetLastError( ERROR_BUFFER_OVERFLOW );
return ret;
}
/***********************************************************************
* GetComputerNameA (KERNEL32.@)
*/
BOOL WINAPI GetComputerNameA(LPSTR name, LPDWORD size)
{
WCHAR nameW[ MAX_COMPUTERNAME_LENGTH + 1 ];
DWORD sizeW = MAX_COMPUTERNAME_LENGTH + 1;
unsigned int len;
BOOL ret;
if ( !GetComputerNameW (nameW, &sizeW) ) return FALSE;
len = WideCharToMultiByte ( CP_ACP, 0, nameW, -1, NULL, 0, NULL, 0 );
/* for compatibility with Win9x */
__TRY
{
if ( *size < len )
{
*size = len;
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SetLastError( ERROR_BUFFER_OVERFLOW );
ret = FALSE;
}
else
{
WideCharToMultiByte ( CP_ACP, 0, nameW, -1, name, len, NULL, 0 );
*size = len - 1;
ret = TRUE;
}
}
__EXCEPT_PAGE_FAULT
{
SetLastError( ERROR_INVALID_PARAMETER );
ret = FALSE;
}
__ENDTRY
return ret;
}
/***********************************************************************
* DnsHostnameToComputerNameA (KERNEL32.@)
*/
BOOL WINAPI DnsHostnameToComputerNameA(LPCSTR hostname,
LPSTR computername, LPDWORD size)
{
WCHAR *hostW, nameW[MAX_COMPUTERNAME_LENGTH + 1];
DWORD len;
BOOL ret;
if (!hostname || !size) return FALSE;
len = MultiByteToWideChar( CP_ACP, 0, hostname, -1, NULL, 0 );
if (!(hostW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) ))) return FALSE;
MultiByteToWideChar( CP_ACP, 0, hostname, -1, hostW, len );
len = ARRAY_SIZE(nameW);
if ((ret = DnsHostnameToComputerNameW( hostW, nameW, &len )))
{
if (!computername || !WideCharToMultiByte( CP_ACP, 0, nameW, -1, computername, *size, NULL, NULL ))
*size = WideCharToMultiByte( CP_ACP, 0, nameW, -1, NULL, 0, NULL, NULL );
else
*size = strlen(computername);
}
HeapFree( GetProcessHeap(), 0, hostW );
return TRUE;
}
/***********************************************************************
* DnsHostnameToComputerNameW (KERNEL32.@)
*/
BOOL WINAPI DnsHostnameToComputerNameW(LPCWSTR hostname,
LPWSTR computername, LPDWORD size)
{
return DnsHostnameToComputerNameExW( hostname, computername, size );
}