821 lines
18 KiB
C
821 lines
18 KiB
C
/*
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* msvcrt.dll drive/directory functions
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*
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* Copyright 1996,1998 Marcus Meissner
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* Copyright 1996 Jukka Iivonen
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* Copyright 1997,2000 Uwe Bonnes
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* Copyright 2000 Jon Griffiths
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <time.h>
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#include "winternl.h"
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#include "wine/unicode.h"
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#include "msvcrt.h"
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#include "msvcrt/errno.h"
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#include "wine/unicode.h"
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#include "msvcrt/direct.h"
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#include "msvcrt/dos.h"
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#include "msvcrt/io.h"
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#include "msvcrt/stdlib.h"
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#include "msvcrt/string.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
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/* INTERNAL: Translate finddata_t to PWIN32_FIND_DATAA */
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static void msvcrt_fttofd(LPWIN32_FIND_DATAA fd, struct _finddata_t* ft)
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{
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DWORD dw;
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if (fd->dwFileAttributes == FILE_ATTRIBUTE_NORMAL)
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ft->attrib = 0;
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else
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ft->attrib = fd->dwFileAttributes;
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RtlTimeToSecondsSince1970( (LARGE_INTEGER *)&fd->ftCreationTime, &dw );
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ft->time_create = dw;
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RtlTimeToSecondsSince1970( (LARGE_INTEGER *)&fd->ftLastAccessTime, &dw );
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ft->time_access = dw;
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RtlTimeToSecondsSince1970( (LARGE_INTEGER *)&fd->ftLastWriteTime, &dw );
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ft->time_write = dw;
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ft->size = fd->nFileSizeLow;
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strcpy(ft->name, fd->cFileName);
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}
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/* INTERNAL: Translate wfinddata_t to PWIN32_FIND_DATAA */
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static void msvcrt_wfttofd(LPWIN32_FIND_DATAW fd, struct _wfinddata_t* ft)
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{
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DWORD dw;
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if (fd->dwFileAttributes == FILE_ATTRIBUTE_NORMAL)
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ft->attrib = 0;
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else
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ft->attrib = fd->dwFileAttributes;
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RtlTimeToSecondsSince1970( (LARGE_INTEGER *)&fd->ftCreationTime, &dw );
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ft->time_create = dw;
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RtlTimeToSecondsSince1970( (LARGE_INTEGER *)&fd->ftLastAccessTime, &dw );
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ft->time_access = dw;
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RtlTimeToSecondsSince1970( (LARGE_INTEGER *)&fd->ftLastWriteTime, &dw );
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ft->time_write = dw;
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ft->size = fd->nFileSizeLow;
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strcpyW(ft->name, fd->cFileName);
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}
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/*********************************************************************
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* _chdir (MSVCRT.@)
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*/
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int _chdir(const char * newdir)
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{
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if (!SetCurrentDirectoryA(newdir))
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{
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MSVCRT__set_errno(newdir?GetLastError():0);
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return -1;
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}
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return 0;
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}
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/*********************************************************************
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* _wchdir (MSVCRT.@)
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*/
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int _wchdir(const WCHAR * newdir)
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{
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if (!SetCurrentDirectoryW(newdir))
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{
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MSVCRT__set_errno(newdir?GetLastError():0);
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return -1;
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}
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return 0;
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}
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/*********************************************************************
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* _chdrive (MSVCRT.@)
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*/
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int _chdrive(int newdrive)
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{
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char buffer[3] = "A:";
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buffer[0] += newdrive - 1;
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if (!SetCurrentDirectoryA( buffer ))
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{
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MSVCRT__set_errno(GetLastError());
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if (newdrive <= 0)
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*MSVCRT__errno() = MSVCRT_EACCES;
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return -1;
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}
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return 0;
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}
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/*********************************************************************
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* _findclose (MSVCRT.@)
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*/
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int _findclose(long hand)
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{
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TRACE(":handle %ld\n",hand);
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if (!FindClose((HANDLE)hand))
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{
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MSVCRT__set_errno(GetLastError());
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return -1;
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}
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return 0;
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}
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/*********************************************************************
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* _findfirst (MSVCRT.@)
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*/
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long _findfirst(const char * fspec, struct _finddata_t* ft)
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{
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WIN32_FIND_DATAA find_data;
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HANDLE hfind;
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hfind = FindFirstFileA(fspec, &find_data);
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if (hfind == INVALID_HANDLE_VALUE)
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{
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MSVCRT__set_errno(GetLastError());
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return -1;
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}
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msvcrt_fttofd(&find_data,ft);
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TRACE(":got handle %d\n",hfind);
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return hfind;
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}
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/*********************************************************************
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* _wfindfirst (MSVCRT.@)
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*/
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long _wfindfirst(const WCHAR * fspec, struct _wfinddata_t* ft)
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{
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WIN32_FIND_DATAW find_data;
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HANDLE hfind;
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hfind = FindFirstFileW(fspec, &find_data);
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if (hfind == INVALID_HANDLE_VALUE)
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{
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MSVCRT__set_errno(GetLastError());
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return -1;
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}
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msvcrt_wfttofd(&find_data,ft);
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TRACE(":got handle %d\n",hfind);
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return hfind;
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}
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/*********************************************************************
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* _findnext (MSVCRT.@)
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*/
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int _findnext(long hand, struct _finddata_t * ft)
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{
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WIN32_FIND_DATAA find_data;
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if (!FindNextFileA(hand, &find_data))
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{
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*MSVCRT__errno() = MSVCRT_ENOENT;
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return -1;
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}
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msvcrt_fttofd(&find_data,ft);
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return 0;
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}
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/*********************************************************************
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* _wfindnext (MSVCRT.@)
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*/
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int _wfindnext(long hand, struct _wfinddata_t * ft)
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{
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WIN32_FIND_DATAW find_data;
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if (!FindNextFileW(hand, &find_data))
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{
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*MSVCRT__errno() = MSVCRT_ENOENT;
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return -1;
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}
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msvcrt_wfttofd(&find_data,ft);
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return 0;
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}
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/*********************************************************************
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* _getcwd (MSVCRT.@)
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*/
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char* _getcwd(char * buf, int size)
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{
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char dir[MAX_PATH];
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int dir_len = GetCurrentDirectoryA(MAX_PATH,dir);
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if (dir_len < 1)
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return NULL; /* FIXME: Real return value untested */
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if (!buf)
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{
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if (size < 0)
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return _strdup(dir);
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return msvcrt_strndup(dir,size);
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}
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if (dir_len >= size)
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{
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*MSVCRT__errno() = MSVCRT_ERANGE;
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return NULL; /* buf too small */
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}
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strcpy(buf,dir);
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return buf;
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}
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/*********************************************************************
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* _wgetcwd (MSVCRT.@)
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*/
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WCHAR* _wgetcwd(WCHAR * buf, int size)
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{
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WCHAR dir[MAX_PATH];
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int dir_len = GetCurrentDirectoryW(MAX_PATH,dir);
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if (dir_len < 1)
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return NULL; /* FIXME: Real return value untested */
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if (!buf)
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{
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if (size < 0)
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return _wcsdup(dir);
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return msvcrt_wstrndup(dir,size);
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}
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if (dir_len >= size)
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{
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*MSVCRT__errno() = MSVCRT_ERANGE;
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return NULL; /* buf too small */
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}
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strcpyW(buf,dir);
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return buf;
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}
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/*********************************************************************
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* _getdrive (MSVCRT.@)
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*/
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int _getdrive(void)
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{
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char buffer[MAX_PATH];
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if (!GetCurrentDirectoryA( sizeof(buffer), buffer )) return 0;
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if (buffer[1] != ':') return 0;
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return toupper(buffer[0]) - 'A' + 1;
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}
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/*********************************************************************
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* _getdcwd (MSVCRT.@)
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*/
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char* _getdcwd(int drive, char * buf, int size)
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{
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static char* dummy;
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TRACE(":drive %d(%c), size %d\n",drive, drive + 'A' - 1, size);
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if (!drive || drive == _getdrive())
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return _getcwd(buf,size); /* current */
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else
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{
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char dir[MAX_PATH];
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char drivespec[4] = {'A', ':', '\\', 0};
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int dir_len;
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drivespec[0] += drive - 1;
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if (GetDriveTypeA(drivespec) < DRIVE_REMOVABLE)
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{
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*MSVCRT__errno() = MSVCRT_EACCES;
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return NULL;
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}
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dir_len = GetFullPathNameA(drivespec,MAX_PATH,dir,&dummy);
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if (dir_len >= size || dir_len < 1)
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{
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*MSVCRT__errno() = MSVCRT_ERANGE;
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return NULL; /* buf too small */
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}
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TRACE(":returning '%s'\n", dir);
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if (!buf)
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return _strdup(dir); /* allocate */
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strcpy(buf,dir);
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}
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return buf;
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}
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/*********************************************************************
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* _wgetdcwd (MSVCRT.@)
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*/
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WCHAR* _wgetdcwd(int drive, WCHAR * buf, int size)
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{
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static WCHAR* dummy;
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TRACE(":drive %d(%c), size %d\n",drive, drive + 'A' - 1, size);
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if (!drive || drive == _getdrive())
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return _wgetcwd(buf,size); /* current */
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else
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{
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WCHAR dir[MAX_PATH];
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WCHAR drivespec[4] = {'A', ':', '\\', 0};
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int dir_len;
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drivespec[0] += drive - 1;
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if (GetDriveTypeW(drivespec) < DRIVE_REMOVABLE)
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{
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*MSVCRT__errno() = MSVCRT_EACCES;
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return NULL;
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}
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dir_len = GetFullPathNameW(drivespec,MAX_PATH,dir,&dummy);
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if (dir_len >= size || dir_len < 1)
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{
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*MSVCRT__errno() = MSVCRT_ERANGE;
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return NULL; /* buf too small */
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}
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TRACE(":returning %s\n", debugstr_w(dir));
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if (!buf)
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return _wcsdup(dir); /* allocate */
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strcpyW(buf,dir);
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}
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return buf;
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}
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/*********************************************************************
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* _getdiskfree (MSVCRT.@)
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*/
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unsigned int _getdiskfree(unsigned int disk, struct _diskfree_t* d)
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{
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char drivespec[4] = {'@', ':', '\\', 0};
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DWORD ret[4];
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unsigned int err;
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if (disk > 26)
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return ERROR_INVALID_PARAMETER; /* MSVCRT doesn't set errno here */
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drivespec[0] += disk; /* make a drive letter */
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if (GetDiskFreeSpaceA(disk==0?NULL:drivespec,ret,ret+1,ret+2,ret+3))
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{
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d->sectors_per_cluster = (unsigned)ret[0];
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d->bytes_per_sector = (unsigned)ret[1];
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d->avail_clusters = (unsigned)ret[2];
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d->total_clusters = (unsigned)ret[3];
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return 0;
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}
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err = GetLastError();
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MSVCRT__set_errno(err);
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return err;
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}
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/*********************************************************************
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* _mkdir (MSVCRT.@)
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*/
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int _mkdir(const char * newdir)
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{
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if (CreateDirectoryA(newdir,NULL))
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return 0;
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MSVCRT__set_errno(GetLastError());
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return -1;
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}
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/*********************************************************************
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* _wmkdir (MSVCRT.@)
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*/
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int _wmkdir(const WCHAR* newdir)
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{
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if (CreateDirectoryW(newdir,NULL))
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return 0;
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MSVCRT__set_errno(GetLastError());
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return -1;
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}
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/*********************************************************************
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* _rmdir (MSVCRT.@)
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*/
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int _rmdir(const char * dir)
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{
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if (RemoveDirectoryA(dir))
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return 0;
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MSVCRT__set_errno(GetLastError());
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return -1;
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}
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/*********************************************************************
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* _wrmdir (MSVCRT.@)
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*/
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int _wrmdir(const WCHAR * dir)
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{
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if (RemoveDirectoryW(dir))
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return 0;
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MSVCRT__set_errno(GetLastError());
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return -1;
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}
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/*********************************************************************
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* _wsplitpath (MSVCRT.@)
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*/
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void _wsplitpath(const WCHAR *inpath, WCHAR *drv, WCHAR *dir,
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WCHAR *fname, WCHAR *ext )
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{
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/* Modified PD code from 'snippets' collection. */
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WCHAR ch, *ptr, *p;
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WCHAR pathbuff[MAX_PATH],*path=pathbuff;
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TRACE(":splitting path %s\n",debugstr_w(path));
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/* FIXME: Should be an strncpyW or something */
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strcpyW(pathbuff, inpath);
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/* convert slashes to backslashes for searching */
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for (ptr = (WCHAR*)path; *ptr; ++ptr)
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if (*ptr == (WCHAR)L'/')
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*ptr = (WCHAR)L'\\';
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/* look for drive spec */
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if ((ptr = strchrW(path, (WCHAR)L':')) != (WCHAR)L'\0')
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{
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++ptr;
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if (drv)
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{
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strncpyW(drv, path, ptr - path);
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drv[ptr - path] = (WCHAR)L'\0';
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}
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path = ptr;
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}
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else if (drv)
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*drv = (WCHAR)L'\0';
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/* find rightmost backslash or leftmost colon */
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if ((ptr = strrchrW(path, (WCHAR)L'\\')) == NULL)
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ptr = (strchrW(path, (WCHAR)L':'));
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|
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if (!ptr)
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{
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ptr = (WCHAR *)path; /* no path */
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if (dir)
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*dir = (WCHAR)L'\0';
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}
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else
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{
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++ptr; /* skip the delimiter */
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if (dir)
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{
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ch = *ptr;
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*ptr = (WCHAR)L'\0';
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strcpyW(dir, path);
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*ptr = ch;
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}
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}
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|
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if ((p = strrchrW(ptr, (WCHAR)L'.')) == NULL)
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{
|
|
if (fname)
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strcpyW(fname, ptr);
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if (ext)
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*ext = (WCHAR)L'\0';
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}
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else
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{
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*p = (WCHAR)L'\0';
|
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if (fname)
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strcpyW(fname, ptr);
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*p = (WCHAR)L'.';
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if (ext)
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|
strcpyW(ext, p);
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|
}
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|
|
/* Fix pathological case - Win returns ':' as part of the
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* directory when no drive letter is given.
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*/
|
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if (drv && drv[0] == (WCHAR)L':')
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{
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|
*drv = (WCHAR)L'\0';
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if (dir)
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{
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pathbuff[0] = (WCHAR)L':';
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|
pathbuff[1] = (WCHAR)L'\0';
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strcatW(pathbuff,dir);
|
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strcpyW(dir, pathbuff);
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|
}
|
|
}
|
|
}
|
|
|
|
/* INTERNAL: Helper for _fullpath. Modified PD code from 'snippets'. */
|
|
static void msvcrt_fln_fix(char *path)
|
|
{
|
|
int dir_flag = 0, root_flag = 0;
|
|
char *r, *p, *q, *s;
|
|
|
|
/* Skip drive */
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if (NULL == (r = strrchr(path, ':')))
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r = path;
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else
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++r;
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|
|
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/* Ignore leading slashes */
|
|
while ('\\' == *r)
|
|
if ('\\' == r[1])
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strcpy(r, &r[1]);
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|
else
|
|
{
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root_flag = 1;
|
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++r;
|
|
}
|
|
|
|
p = r; /* Change "\\" to "\" */
|
|
while (NULL != (p = strchr(p, '\\')))
|
|
if ('\\' == p[1])
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strcpy(p, &p[1]);
|
|
else
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|
++p;
|
|
|
|
while ('.' == *r) /* Scrunch leading ".\" */
|
|
{
|
|
if ('.' == r[1])
|
|
{
|
|
/* Ignore leading ".." */
|
|
for (p = (r += 2); *p && (*p != '\\'); ++p)
|
|
;
|
|
}
|
|
else
|
|
{
|
|
for (p = r + 1 ;*p && (*p != '\\'); ++p)
|
|
;
|
|
}
|
|
strcpy(r, p + ((*p) ? 1 : 0));
|
|
}
|
|
|
|
while ('\\' == path[strlen(path)-1]) /* Strip last '\\' */
|
|
{
|
|
dir_flag = 1;
|
|
path[strlen(path)-1] = '\0';
|
|
}
|
|
|
|
s = r;
|
|
|
|
/* Look for "\." in path */
|
|
|
|
while (NULL != (p = strstr(s, "\\.")))
|
|
{
|
|
if ('.' == p[2])
|
|
{
|
|
/* Execute this section if ".." found */
|
|
q = p - 1;
|
|
while (q > r) /* Backup one level */
|
|
{
|
|
if (*q == '\\')
|
|
break;
|
|
--q;
|
|
}
|
|
if (q > r)
|
|
{
|
|
strcpy(q, p + 3);
|
|
s = q;
|
|
}
|
|
else if ('.' != *q)
|
|
{
|
|
strcpy(q + ((*q == '\\') ? 1 : 0),
|
|
p + 3 + ((*(p + 3)) ? 1 : 0));
|
|
s = q;
|
|
}
|
|
else s = ++p;
|
|
}
|
|
else
|
|
{
|
|
/* Execute this section if "." found */
|
|
q = p + 2;
|
|
for ( ;*q && (*q != '\\'); ++q)
|
|
;
|
|
strcpy (p, q);
|
|
}
|
|
}
|
|
|
|
if (root_flag) /* Embedded ".." could have bubbled up to root */
|
|
{
|
|
for (p = r; *p && ('.' == *p || '\\' == *p); ++p)
|
|
;
|
|
if (r != p)
|
|
strcpy(r, p);
|
|
}
|
|
|
|
if (dir_flag)
|
|
strcat(path, "\\");
|
|
}
|
|
|
|
/*********************************************************************
|
|
* _fullpath (MSVCRT.@)
|
|
*/
|
|
char *_fullpath(char * absPath, const char* relPath, unsigned int size)
|
|
{
|
|
char drive[5],dir[MAX_PATH],file[MAX_PATH],ext[MAX_PATH];
|
|
char res[MAX_PATH];
|
|
size_t len;
|
|
|
|
res[0] = '\0';
|
|
|
|
if (!relPath || !*relPath)
|
|
return _getcwd(absPath, size);
|
|
|
|
if (size < 4)
|
|
{
|
|
*MSVCRT__errno() = MSVCRT_ERANGE;
|
|
return NULL;
|
|
}
|
|
|
|
TRACE(":resolving relative path '%s'\n",relPath);
|
|
|
|
_splitpath(relPath, drive, dir, file, ext);
|
|
|
|
/* Get Directory and drive into 'res' */
|
|
if (!dir[0] || (dir[0] != '/' && dir[0] != '\\'))
|
|
{
|
|
/* Relative or no directory given */
|
|
_getdcwd(drive[0] ? toupper(drive[0]) - 'A' + 1 : 0, res, MAX_PATH);
|
|
strcat(res,"\\");
|
|
if (dir[0])
|
|
strcat(res,dir);
|
|
if (drive[0])
|
|
res[0] = drive[0]; /* If given a drive, preserve the letter case */
|
|
}
|
|
else
|
|
{
|
|
strcpy(res,drive);
|
|
strcat(res,dir);
|
|
}
|
|
|
|
strcat(res,"\\");
|
|
strcat(res, file);
|
|
strcat(res, ext);
|
|
msvcrt_fln_fix(res);
|
|
|
|
len = strlen(res);
|
|
if (len >= MAX_PATH || len >= (size_t)size)
|
|
return NULL; /* FIXME: errno? */
|
|
|
|
if (!absPath)
|
|
return _strdup(res);
|
|
strcpy(absPath,res);
|
|
return absPath;
|
|
}
|
|
|
|
/*********************************************************************
|
|
* _makepath (MSVCRT.@)
|
|
*/
|
|
VOID _makepath(char * path, const char * drive,
|
|
const char *directory, const char * filename,
|
|
const char * extension )
|
|
{
|
|
char ch;
|
|
TRACE("got %s %s %s %s\n", drive, directory,
|
|
filename, extension);
|
|
|
|
if ( !path )
|
|
return;
|
|
|
|
path[0] = 0;
|
|
if (drive && drive[0])
|
|
{
|
|
path[0] = drive[0];
|
|
path[1] = ':';
|
|
path[2] = 0;
|
|
}
|
|
if (directory && directory[0])
|
|
{
|
|
strcat(path, directory);
|
|
ch = path[strlen(path)-1];
|
|
if (ch != '/' && ch != '\\')
|
|
strcat(path,"\\");
|
|
}
|
|
if (filename && filename[0])
|
|
{
|
|
strcat(path, filename);
|
|
if (extension && extension[0])
|
|
{
|
|
if ( extension[0] != '.' )
|
|
strcat(path,".");
|
|
strcat(path,extension);
|
|
}
|
|
}
|
|
|
|
TRACE("returning %s\n",path);
|
|
}
|
|
|
|
/*********************************************************************
|
|
* _wmakepath (MSVCRT.@)
|
|
*/
|
|
VOID _wmakepath(WCHAR *path, const WCHAR *drive, const WCHAR *directory,
|
|
const WCHAR *filename, const WCHAR *extension)
|
|
{
|
|
WCHAR ch;
|
|
TRACE("%s %s %s %s\n", debugstr_w(drive), debugstr_w(directory),
|
|
debugstr_w(filename), debugstr_w(extension));
|
|
|
|
if ( !path )
|
|
return;
|
|
|
|
path[0] = 0;
|
|
if (drive && drive[0])
|
|
{
|
|
path[0] = drive[0];
|
|
path[1] = ':';
|
|
path[2] = 0;
|
|
}
|
|
if (directory && directory[0])
|
|
{
|
|
strcatW(path, directory);
|
|
ch = path[strlenW(path) - 1];
|
|
if (ch != '/' && ch != '\\')
|
|
{
|
|
static const WCHAR backslashW[] = {'\\',0};
|
|
strcatW(path, backslashW);
|
|
}
|
|
}
|
|
if (filename && filename[0])
|
|
{
|
|
strcatW(path, filename);
|
|
if (extension && extension[0])
|
|
{
|
|
if ( extension[0] != '.' )
|
|
{
|
|
static const WCHAR dotW[] = {'.',0};
|
|
strcatW(path, dotW);
|
|
}
|
|
strcatW(path, extension);
|
|
}
|
|
}
|
|
|
|
TRACE("returning %s\n", debugstr_w(path));
|
|
}
|
|
|
|
/*********************************************************************
|
|
* _searchenv (MSVCRT.@)
|
|
*/
|
|
void _searchenv(const char* file, const char* env, char *buf)
|
|
{
|
|
char*envVal, *penv;
|
|
char curPath[MAX_PATH];
|
|
|
|
*buf = '\0';
|
|
|
|
/* Try CWD first */
|
|
if (GetFileAttributesA( file ) != 0xFFFFFFFF)
|
|
{
|
|
GetFullPathNameA( file, MAX_PATH, buf, NULL );
|
|
/* Sigh. This error is *always* set, regardless of success */
|
|
MSVCRT__set_errno(ERROR_FILE_NOT_FOUND);
|
|
return;
|
|
}
|
|
|
|
/* Search given environment variable */
|
|
envVal = MSVCRT_getenv(env);
|
|
if (!envVal)
|
|
{
|
|
MSVCRT__set_errno(ERROR_FILE_NOT_FOUND);
|
|
return;
|
|
}
|
|
|
|
penv = envVal;
|
|
TRACE(":searching for %s in paths %s\n", file, envVal);
|
|
|
|
do
|
|
{
|
|
char *end = penv;
|
|
|
|
while(*end && *end != ';') end++; /* Find end of next path */
|
|
if (penv == end || !*penv)
|
|
{
|
|
MSVCRT__set_errno(ERROR_FILE_NOT_FOUND);
|
|
return;
|
|
}
|
|
strncpy(curPath, penv, end - penv);
|
|
if (curPath[end - penv] != '/' || curPath[end - penv] != '\\')
|
|
{
|
|
curPath[end - penv] = '\\';
|
|
curPath[end - penv + 1] = '\0';
|
|
}
|
|
else
|
|
curPath[end - penv] = '\0';
|
|
|
|
strcat(curPath, file);
|
|
TRACE("Checking for file %s\n", curPath);
|
|
if (GetFileAttributesA( curPath ) != 0xFFFFFFFF)
|
|
{
|
|
strcpy(buf, curPath);
|
|
MSVCRT__set_errno(ERROR_FILE_NOT_FOUND);
|
|
return; /* Found */
|
|
}
|
|
penv = *end ? end + 1 : end;
|
|
} while(1);
|
|
}
|