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63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
#include <precomp.h>
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#include <direct.h>
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#include <tchar.h>
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/*
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* @implemented
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*
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* _getdcwd (MSVCRT.@)
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*
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* Get the current working directory on a given disk.
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*
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* PARAMS
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* drive [I] Drive letter to get the current working directory from.
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* buf [O] Destination for the current working directory.
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* size [I] Length of drive in characters.
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*
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* RETURNS
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* Success: If drive is NULL, returns an allocated string containing the path.
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* Otherwise populates drive with the path and returns it.
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* Failure: NULL. errno indicates the error.
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*/
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_TCHAR* _tgetdcwd(int drive, _TCHAR * buf, int size)
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{
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static _TCHAR* 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 _tgetcwd(buf,size); /* current */
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else
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{
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_TCHAR dir[MAX_PATH];
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_TCHAR drivespec[] = _T("A:");
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int dir_len;
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drivespec[0] += drive - 1;
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if (GetDriveType(drivespec) < DRIVE_REMOVABLE)
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{
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_set_errno(EACCES);
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return NULL;
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}
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/* GetFullPathName for X: means "get working directory on drive X",
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* just like passing X: to SetCurrentDirectory means "switch to working
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* directory on drive X". -Gunnar */
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dir_len = GetFullPathName(drivespec,MAX_PATH,dir,&dummy);
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if (dir_len >= size || dir_len < 1)
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{
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_set_errno(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 _tcsdup(dir); /* allocate */
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_tcscpy(buf,dir);
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}
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return buf;
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}
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