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wine/dlls/msvcrt/dir.c
Gunnar Dalsnes 1b7e736334 When getting current directory on a drive different from the working 
drive, _getdcwd incorrectly passed "X:\" (X = any drive) as path to
GetFullPathName. "X:" (without the backslash) is the correct thing to
use.
2005-02-18 12:51:00 +00:00

1256 lines
29 KiB
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/*
* msvcrt.dll drive/directory functions
*
* Copyright 1996,1998 Marcus Meissner
* Copyright 1996 Jukka Iivonen
* Copyright 1997,2000 Uwe Bonnes
* Copyright 2000 Jon Griffiths
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#include <time.h>
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "winternl.h"
#include "wine/unicode.h"
#include "msvcrt.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
/* INTERNAL: Translate WIN32_FIND_DATAA to finddata_t */
static void msvcrt_fttofd( const WIN32_FIND_DATAA *fd, struct MSVCRT__finddata_t* ft)
{
DWORD dw;
if (fd->dwFileAttributes == FILE_ATTRIBUTE_NORMAL)
ft->attrib = 0;
else
ft->attrib = fd->dwFileAttributes;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftCreationTime, &dw );
ft->time_create = dw;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastAccessTime, &dw );
ft->time_access = dw;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastWriteTime, &dw );
ft->time_write = dw;
ft->size = fd->nFileSizeLow;
strcpy(ft->name, fd->cFileName);
}
/* INTERNAL: Translate WIN32_FIND_DATAW to wfinddata_t */
static void msvcrt_wfttofd( const WIN32_FIND_DATAW *fd, struct MSVCRT__wfinddata_t* ft)
{
DWORD dw;
if (fd->dwFileAttributes == FILE_ATTRIBUTE_NORMAL)
ft->attrib = 0;
else
ft->attrib = fd->dwFileAttributes;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftCreationTime, &dw );
ft->time_create = dw;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastAccessTime, &dw );
ft->time_access = dw;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastWriteTime, &dw );
ft->time_write = dw;
ft->size = fd->nFileSizeLow;
strcpyW(ft->name, fd->cFileName);
}
/* INTERNAL: Translate WIN32_FIND_DATAA to finddatai64_t */
static void msvcrt_fttofdi64( const WIN32_FIND_DATAA *fd, struct MSVCRT__finddatai64_t* ft)
{
DWORD dw;
if (fd->dwFileAttributes == FILE_ATTRIBUTE_NORMAL)
ft->attrib = 0;
else
ft->attrib = fd->dwFileAttributes;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftCreationTime, &dw );
ft->time_create = dw;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastAccessTime, &dw );
ft->time_access = dw;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastWriteTime, &dw );
ft->time_write = dw;
ft->size = ((__int64)fd->nFileSizeHigh) << 32 | fd->nFileSizeLow;
strcpy(ft->name, fd->cFileName);
}
/* INTERNAL: Translate WIN32_FIND_DATAW to wfinddatai64_t */
static void msvcrt_wfttofdi64( const WIN32_FIND_DATAW *fd, struct MSVCRT__wfinddatai64_t* ft)
{
DWORD dw;
if (fd->dwFileAttributes == FILE_ATTRIBUTE_NORMAL)
ft->attrib = 0;
else
ft->attrib = fd->dwFileAttributes;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftCreationTime, &dw );
ft->time_create = dw;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastAccessTime, &dw );
ft->time_access = dw;
RtlTimeToSecondsSince1970( (const LARGE_INTEGER *)&fd->ftLastWriteTime, &dw );
ft->time_write = dw;
ft->size = ((__int64)fd->nFileSizeHigh) << 32 | fd->nFileSizeLow;
strcpyW(ft->name, fd->cFileName);
}
/*********************************************************************
* _chdir (MSVCRT.@)
*
* Change the current working directory.
*
* PARAMS
* newdir [I] Directory to change to
*
* RETURNS
* Success: 0. The current working directory is set to newdir.
* Failure: -1. errno indicates the error.
*
* NOTES
* See SetCurrentDirectoryA.
*/
int _chdir(const char * newdir)
{
if (!SetCurrentDirectoryA(newdir))
{
msvcrt_set_errno(newdir?GetLastError():0);
return -1;
}
return 0;
}
/*********************************************************************
* _wchdir (MSVCRT.@)
*
* Unicode version of _chdir.
*/
int _wchdir(const MSVCRT_wchar_t * newdir)
{
if (!SetCurrentDirectoryW(newdir))
{
msvcrt_set_errno(newdir?GetLastError():0);
return -1;
}
return 0;
}
/*********************************************************************
* _chdrive (MSVCRT.@)
*
* Change the current drive.
*
* PARAMS
* newdrive [I] Drive number to change to (1 = 'A', 2 = 'B', ...)
*
* RETURNS
* Success: 0. The current drive is set to newdrive.
* Failure: -1. errno indicates the error.
*
* NOTES
* See SetCurrentDirectoryA.
*/
int _chdrive(int newdrive)
{
WCHAR buffer[3] = {'A', ':', 0};
buffer[0] += newdrive - 1;
if (!SetCurrentDirectoryW( buffer ))
{
msvcrt_set_errno(GetLastError());
if (newdrive <= 0)
*MSVCRT__errno() = MSVCRT_EACCES;
return -1;
}
return 0;
}
/*********************************************************************
* _findclose (MSVCRT.@)
*
* Close a handle returned by _findfirst().
*
* PARAMS
* hand [I] Handle to close
*
* RETURNS
* Success: 0. All resources associated with hand are freed.
* Failure: -1. errno indicates the error.
*
* NOTES
* See FindClose.
*/
int _findclose(long hand)
{
TRACE(":handle %ld\n",hand);
if (!FindClose((HANDLE)hand))
{
msvcrt_set_errno(GetLastError());
return -1;
}
return 0;
}
/*********************************************************************
* _findfirst (MSVCRT.@)
*
* Open a handle for iterating through a directory.
*
* PARAMS
* fspec [I] File specification of files to iterate.
* ft [O] Information for the first file found.
*
* RETURNS
* Success: A handle suitable for passing to _findnext() and _findclose().
* ft is populated with the details of the found file.
* Failure: -1. errno indicates the error.
*
* NOTES
* See FindFirstFileA.
*/
long MSVCRT__findfirst(const char * fspec, struct MSVCRT__finddata_t* ft)
{
WIN32_FIND_DATAA find_data;
HANDLE hfind;
hfind = FindFirstFileA(fspec, &find_data);
if (hfind == INVALID_HANDLE_VALUE)
{
msvcrt_set_errno(GetLastError());
return -1;
}
msvcrt_fttofd(&find_data,ft);
TRACE(":got handle %p\n",hfind);
return (long)hfind;
}
/*********************************************************************
* _wfindfirst (MSVCRT.@)
*
* Unicode version of _findfirst.
*/
long MSVCRT__wfindfirst(const MSVCRT_wchar_t * fspec, struct MSVCRT__wfinddata_t* ft)
{
WIN32_FIND_DATAW find_data;
HANDLE hfind;
hfind = FindFirstFileW(fspec, &find_data);
if (hfind == INVALID_HANDLE_VALUE)
{
msvcrt_set_errno(GetLastError());
return -1;
}
msvcrt_wfttofd(&find_data,ft);
TRACE(":got handle %p\n",hfind);
return (long)hfind;
}
/*********************************************************************
* _findfirsti64 (MSVCRT.@)
*
* 64-bit version of _findfirst.
*/
long MSVCRT__findfirsti64(const char * fspec, struct MSVCRT__finddatai64_t* ft)
{
WIN32_FIND_DATAA find_data;
HANDLE hfind;
hfind = FindFirstFileA(fspec, &find_data);
if (hfind == INVALID_HANDLE_VALUE)
{
msvcrt_set_errno(GetLastError());
return -1;
}
msvcrt_fttofdi64(&find_data,ft);
TRACE(":got handle %p\n",hfind);
return (long)hfind;
}
/*********************************************************************
* _wfindfirsti64 (MSVCRT.@)
*
* Unicode version of _findfirsti64.
*/
long MSVCRT__wfindfirsti64(const MSVCRT_wchar_t * fspec, struct MSVCRT__wfinddatai64_t* ft)
{
WIN32_FIND_DATAW find_data;
HANDLE hfind;
hfind = FindFirstFileW(fspec, &find_data);
if (hfind == INVALID_HANDLE_VALUE)
{
msvcrt_set_errno(GetLastError());
return -1;
}
msvcrt_wfttofdi64(&find_data,ft);
TRACE(":got handle %p\n",hfind);
return (long)hfind;
}
/*********************************************************************
* _findnext (MSVCRT.@)
*
* Find the next file from a file search handle.
*
* PARAMS
* hand [I] Handle to the search returned from _findfirst().
* ft [O] Information for the file found.
*
* RETURNS
* Success: 0. ft is populated with the details of the found file.
* Failure: -1. errno indicates the error.
*
* NOTES
* See FindNextFileA.
*/
int MSVCRT__findnext(long hand, struct MSVCRT__finddata_t * ft)
{
WIN32_FIND_DATAA find_data;
if (!FindNextFileA((HANDLE)hand, &find_data))
{
*MSVCRT__errno() = MSVCRT_ENOENT;
return -1;
}
msvcrt_fttofd(&find_data,ft);
return 0;
}
/*********************************************************************
* _wfindnext (MSVCRT.@)
*
* Unicode version of _findnext.
*/
int MSVCRT__wfindnext(long hand, struct MSVCRT__wfinddata_t * ft)
{
WIN32_FIND_DATAW find_data;
if (!FindNextFileW((HANDLE)hand, &find_data))
{
*MSVCRT__errno() = MSVCRT_ENOENT;
return -1;
}
msvcrt_wfttofd(&find_data,ft);
return 0;
}
/*********************************************************************
* _findnexti64 (MSVCRT.@)
*
* 64-bit version of _findnext.
*/
int MSVCRT__findnexti64(long hand, struct MSVCRT__finddatai64_t * ft)
{
WIN32_FIND_DATAA find_data;
if (!FindNextFileA((HANDLE)hand, &find_data))
{
*MSVCRT__errno() = MSVCRT_ENOENT;
return -1;
}
msvcrt_fttofdi64(&find_data,ft);
return 0;
}
/*********************************************************************
* _wfindnexti64 (MSVCRT.@)
*
* Unicode version of _findnexti64.
*/
int MSVCRT__wfindnexti64(long hand, struct MSVCRT__wfinddatai64_t * ft)
{
WIN32_FIND_DATAW find_data;
if (!FindNextFileW((HANDLE)hand, &find_data))
{
*MSVCRT__errno() = MSVCRT_ENOENT;
return -1;
}
msvcrt_wfttofdi64(&find_data,ft);
return 0;
}
/*********************************************************************
* _getcwd (MSVCRT.@)
*
* Get the current working directory.
*
* PARAMS
* buf [O] Destination for current working directory.
* size [I] Size of buf in characters
*
* RETURNS
* Success: If buf is NULL, returns an allocated string containing the path.
* Otherwise populates buf with the path and returns it.
* Failure: NULL. errno indicates the error.
*/
char* _getcwd(char * buf, int size)
{
char dir[MAX_PATH];
int dir_len = GetCurrentDirectoryA(MAX_PATH,dir);
if (dir_len < 1)
return NULL; /* FIXME: Real return value untested */
if (!buf)
{
if (size < 0)
return _strdup(dir);
return msvcrt_strndup(dir,size);
}
if (dir_len >= size)
{
*MSVCRT__errno() = MSVCRT_ERANGE;
return NULL; /* buf too small */
}
strcpy(buf,dir);
return buf;
}
/*********************************************************************
* _wgetcwd (MSVCRT.@)
*
* Unicode version of _getcwd.
*/
MSVCRT_wchar_t* _wgetcwd(MSVCRT_wchar_t * buf, int size)
{
MSVCRT_wchar_t dir[MAX_PATH];
int dir_len = GetCurrentDirectoryW(MAX_PATH,dir);
if (dir_len < 1)
return NULL; /* FIXME: Real return value untested */
if (!buf)
{
if (size < 0)
return _wcsdup(dir);
return msvcrt_wstrndup(dir,size);
}
if (dir_len >= size)
{
*MSVCRT__errno() = MSVCRT_ERANGE;
return NULL; /* buf too small */
}
strcpyW(buf,dir);
return buf;
}
/*********************************************************************
* _getdrive (MSVCRT.@)
*
* Get the current drive number.
*
* PARAMS
* None.
*
* RETURNS
* Success: The drive letter number from 1 to 26 ("A:" to "Z:").
* Failure: 0.
*/
int _getdrive(void)
{
WCHAR buffer[MAX_PATH];
if (GetCurrentDirectoryW( MAX_PATH, buffer ) &&
buffer[0] >= 'A' && buffer[0] <= 'z' && buffer[1] == ':')
return toupperW(buffer[0]) - 'A' + 1;
return 0;
}
/*********************************************************************
* _getdcwd (MSVCRT.@)
*
* Get the current working directory on a given disk.
*
* PARAMS
* drive [I] Drive letter to get the current working directory from.
* buf [O] Destination for the current working directory.
* size [I] Length of drive in characters.
*
* RETURNS
* Success: If drive is NULL, returns an allocated string containing the path.
* Otherwise populates drive with the path and returns it.
* Failure: NULL. errno indicates the error.
*/
char* _getdcwd(int drive, char * buf, int size)
{
static char* dummy;
TRACE(":drive %d(%c), size %d\n",drive, drive + 'A' - 1, size);
if (!drive || drive == _getdrive())
return _getcwd(buf,size); /* current */
else
{
char dir[MAX_PATH];
char drivespec[4] = {'A', ':', 0};
int dir_len;
drivespec[0] += drive - 1;
if (GetDriveTypeA(drivespec) < DRIVE_REMOVABLE)
{
*MSVCRT__errno() = MSVCRT_EACCES;
return NULL;
}
dir_len = GetFullPathNameA(drivespec,MAX_PATH,dir,&dummy);
if (dir_len >= size || dir_len < 1)
{
*MSVCRT__errno() = MSVCRT_ERANGE;
return NULL; /* buf too small */
}
TRACE(":returning '%s'\n", dir);
if (!buf)
return _strdup(dir); /* allocate */
strcpy(buf,dir);
}
return buf;
}
/*********************************************************************
* _wgetdcwd (MSVCRT.@)
*
* Unicode version of _wgetdcwd.
*/
MSVCRT_wchar_t* _wgetdcwd(int drive, MSVCRT_wchar_t * buf, int size)
{
static MSVCRT_wchar_t* dummy;
TRACE(":drive %d(%c), size %d\n",drive, drive + 'A' - 1, size);
if (!drive || drive == _getdrive())
return _wgetcwd(buf,size); /* current */
else
{
MSVCRT_wchar_t dir[MAX_PATH];
MSVCRT_wchar_t drivespec[4] = {'A', ':', '\\', 0};
int dir_len;
drivespec[0] += drive - 1;
if (GetDriveTypeW(drivespec) < DRIVE_REMOVABLE)
{
*MSVCRT__errno() = MSVCRT_EACCES;
return NULL;
}
dir_len = GetFullPathNameW(drivespec,MAX_PATH,dir,&dummy);
if (dir_len >= size || dir_len < 1)
{
*MSVCRT__errno() = MSVCRT_ERANGE;
return NULL; /* buf too small */
}
TRACE(":returning %s\n", debugstr_w(dir));
if (!buf)
return _wcsdup(dir); /* allocate */
strcpyW(buf,dir);
}
return buf;
}
/*********************************************************************
* _getdiskfree (MSVCRT.@)
*
* Get information about the free space on a drive.
*
* PARAMS
* disk [I] Drive number to get information about (1 = 'A', 2 = 'B', ...)
* info [O] Destination for the resulting information.
*
* RETURNS
* Success: 0. info is updated with the free space information.
* Failure: An error code from GetLastError().
*
* NOTES
* See GetLastError().
*/
unsigned int MSVCRT__getdiskfree(unsigned int disk, struct MSVCRT__diskfree_t * d)
{
WCHAR drivespec[4] = {'@', ':', '\\', 0};
DWORD ret[4];
unsigned int err;
if (disk > 26)
return ERROR_INVALID_PARAMETER; /* MSVCRT doesn't set errno here */
drivespec[0] += disk; /* make a drive letter */
if (GetDiskFreeSpaceW(disk==0?NULL:drivespec,ret,ret+1,ret+2,ret+3))
{
d->sectors_per_cluster = (unsigned)ret[0];
d->bytes_per_sector = (unsigned)ret[1];
d->avail_clusters = (unsigned)ret[2];
d->total_clusters = (unsigned)ret[3];
return 0;
}
err = GetLastError();
msvcrt_set_errno(err);
return err;
}
/*********************************************************************
* _mkdir (MSVCRT.@)
*
* Create a directory.
*
* PARAMS
* newdir [I] Name of directory to create.
*
* RETURNS
* Success: 0. The directory indicated by newdir is created.
* Failure: -1. errno indicates the error.
*
* NOTES
* See CreateDirectoryA.
*/
int _mkdir(const char * newdir)
{
if (CreateDirectoryA(newdir,NULL))
return 0;
msvcrt_set_errno(GetLastError());
return -1;
}
/*********************************************************************
* _wmkdir (MSVCRT.@)
*
* Unicode version of _mkdir.
*/
int _wmkdir(const MSVCRT_wchar_t* newdir)
{
if (CreateDirectoryW(newdir,NULL))
return 0;
msvcrt_set_errno(GetLastError());
return -1;
}
/*********************************************************************
* _rmdir (MSVCRT.@)
*
* Delete a directory.
*
* PARAMS
* dir [I] Name of directory to delete.
*
* RETURNS
* Success: 0. The directory indicated by newdir is deleted.
* Failure: -1. errno indicates the error.
*
* NOTES
* See RemoveDirectoryA.
*/
int _rmdir(const char * dir)
{
if (RemoveDirectoryA(dir))
return 0;
msvcrt_set_errno(GetLastError());
return -1;
}
/*********************************************************************
* _wrmdir (MSVCRT.@)
*
* Unicode version of _rmdir.
*/
int _wrmdir(const MSVCRT_wchar_t * dir)
{
if (RemoveDirectoryW(dir))
return 0;
msvcrt_set_errno(GetLastError());
return -1;
}
/*********************************************************************
* _wsplitpath (MSVCRT.@)
*
* Unicode version of _splitpath.
*/
void _wsplitpath(const MSVCRT_wchar_t *inpath, MSVCRT_wchar_t *drv, MSVCRT_wchar_t *dir,
MSVCRT_wchar_t *fname, MSVCRT_wchar_t *ext )
{
const MSVCRT_wchar_t *p, *end;
if (inpath[0] && inpath[1] == ':')
{
if (drv)
{
drv[0] = inpath[0];
drv[1] = inpath[1];
drv[2] = 0;
}
inpath += 2;
}
else if (drv) drv[0] = 0;
/* look for end of directory part */
end = NULL;
for (p = inpath; *p; p++) if (*p == '/' || *p == '\\') end = p + 1;
if (end) /* got a directory */
{
if (dir)
{
memcpy( dir, inpath, (end - inpath) * sizeof(MSVCRT_wchar_t) );
dir[end - inpath] = 0;
}
inpath = end;
}
else if (dir) dir[0] = 0;
/* look for extension: what's after the last dot */
end = NULL;
for (p = inpath; *p; p++) if (*p == '.') end = p;
if (!end) end = p; /* there's no extension */
if (fname)
{
memcpy( fname, inpath, (end - inpath) * sizeof(MSVCRT_wchar_t) );
fname[end - inpath] = 0;
}
if (ext) strcpyW( ext, end );
}
/* INTERNAL: Helper for _fullpath. Modified PD code from 'snippets'. */
static void wmsvcrt_fln_fix(MSVCRT_wchar_t *path)
{
int dir_flag = 0, root_flag = 0;
MSVCRT_wchar_t *r, *p, *q, *s;
MSVCRT_wchar_t szbsdot[] = { '\\', '.', 0 };
/* Skip drive */
if (NULL == (r = strrchrW(path, ':')))
r = path;
else
++r;
/* Ignore leading slashes */
while ('\\' == *r)
if ('\\' == r[1])
strcpyW(r, &r[1]);
else
{
root_flag = 1;
++r;
}
p = r; /* Change "\\" to "\" */
while (NULL != (p = strchrW(p, '\\')))
if ('\\' == p[1])
strcpyW(p, &p[1]);
else
++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)
;
}
strcpyW(r, p + ((*p) ? 1 : 0));
}
while ('\\' == path[strlenW(path)-1]) /* Strip last '\\' */
{
dir_flag = 1;
path[strlenW(path)-1] = '\0';
}
s = r;
/* Look for "\." in path */
while (NULL != (p = strstrW(s, szbsdot)))
{
if ('.' == p[2])
{
/* Execute this section if ".." found */
q = p - 1;
while (q > r) /* Backup one level */
{
if (*q == '\\')
break;
--q;
}
if (q > r)
{
strcpyW(q, p + 3);
s = q;
}
else if ('.' != *q)
{
strcpyW(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)
;
strcpyW (p, q);
}
}
if (root_flag) /* Embedded ".." could have bubbled up to root */
{
for (p = r; *p && ('.' == *p || '\\' == *p); ++p)
;
if (r != p)
strcpyW(r, p);
}
if (dir_flag)
{
MSVCRT_wchar_t szbs[] = { '\\', 0 };
strcatW(path, szbs);
}
}
/*********************************************************************
* _wfullpath (MSVCRT.@)
*
* Unicode version of _fullpath.
*/
MSVCRT_wchar_t *_wfullpath(MSVCRT_wchar_t * absPath, const MSVCRT_wchar_t* relPath, MSVCRT_size_t size)
{
MSVCRT_wchar_t drive[5],dir[MAX_PATH],file[MAX_PATH],ext[MAX_PATH];
MSVCRT_wchar_t res[MAX_PATH];
size_t len;
MSVCRT_wchar_t szbs[] = { '\\', 0 };
res[0] = '\0';
if (!relPath || !*relPath)
return _wgetcwd(absPath, size);
if (size < 4)
{
*MSVCRT__errno() = MSVCRT_ERANGE;
return NULL;
}
TRACE(":resolving relative path '%s'\n",debugstr_w(relPath));
_wsplitpath(relPath, drive, dir, file, ext);
/* Get Directory and drive into 'res' */
if (!dir[0] || (dir[0] != '/' && dir[0] != '\\'))
{
/* Relative or no directory given */
_wgetdcwd(drive[0] ? toupper(drive[0]) - 'A' + 1 : 0, res, MAX_PATH);
strcatW(res,szbs);
if (dir[0])
strcatW(res,dir);
if (drive[0])
res[0] = drive[0]; /* If given a drive, preserve the letter case */
}
else
{
strcpyW(res,drive);
strcatW(res,dir);
}
strcatW(res,szbs);
strcatW(res, file);
strcatW(res, ext);
wmsvcrt_fln_fix(res);
len = strlenW(res);
if (len >= MAX_PATH || len >= (size_t)size)
return NULL; /* FIXME: errno? */
if (!absPath)
return _wcsdup(res);
strcpyW(absPath,res);
return absPath;
}
/* 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 */
if (NULL == (r = strrchr(path, ':')))
r = path;
else
++r;
/* Ignore leading slashes */
while ('\\' == *r)
if ('\\' == r[1])
strcpy(r, &r[1]);
else
{
root_flag = 1;
++r;
}
p = r; /* Change "\\" to "\" */
while (NULL != (p = strchr(p, '\\')))
if ('\\' == p[1])
strcpy(p, &p[1]);
else
++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.@)
*
* Create an absolute path from a relative path.
*
* PARAMS
* absPath [O] Destination for absolute path
* relPath [I] Relative path to convert to absolute
* size [I] Length of absPath in characters.
*
* RETURNS
* Success: If absPath is NULL, returns an allocated string containing the path.
* Otherwise populates absPath with the path and returns it.
* Failure: NULL. errno indicates the error.
*/
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.@)
*
* Create a pathname.
*
* PARAMS
* path [O] Destination for created pathname
* drive [I] Drive letter (e.g. "A:")
* directory [I] Directory
* filename [I] Name of the file, excluding extension
* extension [I] File extension (e.g. ".TXT")
*
* RETURNS
* Nothing. If path is not large enough to hold the resulting pathname,
* random process memory will be overwritten.
*/
VOID _makepath(char * path, const char * drive,
const char *directory, const char * filename,
const char * extension)
{
char ch;
char tmpPath[MAX_PATH];
TRACE("got %s %s %s %s\n", debugstr_a(drive), debugstr_a(directory),
debugstr_a(filename), debugstr_a(extension) );
if ( !path )
return;
tmpPath[0] = '\0';
if (drive && drive[0])
{
tmpPath[0] = drive[0];
tmpPath[1] = ':';
tmpPath[2] = 0;
}
if (directory && directory[0])
{
strcat(tmpPath, directory);
ch = tmpPath[strlen(tmpPath)-1];
if (ch != '/' && ch != '\\')
strcat(tmpPath,"\\");
}
if (filename && filename[0])
{
strcat(tmpPath, filename);
if (extension && extension[0])
{
if ( extension[0] != '.' )
strcat(tmpPath,".");
strcat(tmpPath,extension);
}
}
strcpy( path, tmpPath );
TRACE("returning %s\n",path);
}
/*********************************************************************
* _wmakepath (MSVCRT.@)
*
* Unicode version of _wmakepath.
*/
VOID _wmakepath(MSVCRT_wchar_t *path, const MSVCRT_wchar_t *drive, const MSVCRT_wchar_t *directory,
const MSVCRT_wchar_t *filename, const MSVCRT_wchar_t *extension)
{
MSVCRT_wchar_t 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 MSVCRT_wchar_t backslashW[] = {'\\',0};
strcatW(path, backslashW);
}
}
if (filename && filename[0])
{
strcatW(path, filename);
if (extension && extension[0])
{
if ( extension[0] != '.' )
{
static const MSVCRT_wchar_t dotW[] = {'.',0};
strcatW(path, dotW);
}
strcatW(path, extension);
}
}
TRACE("returning %s\n", debugstr_w(path));
}
/*********************************************************************
* _searchenv (MSVCRT.@)
*
* Search for a file in a list of paths from an envronment variable.
*
* PARAMS
* file [I] Name of the file to search for.
* env [I] Name of the environment variable containing a list of paths.
* buf [O] Destination for the found file path.
*
* RETURNS
* Nothing. If the file is not found, buf will contain an empty string
* and errno is set.
*/
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 ) != INVALID_FILE_ATTRIBUTES)
{
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 ) != INVALID_FILE_ATTRIBUTES)
{
strcpy(buf, curPath);
msvcrt_set_errno(ERROR_FILE_NOT_FOUND);
return; /* Found */
}
penv = *end ? end + 1 : end;
} while(1);
}
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