lib/crtdll/sys_stat/fstat.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:   See COPYING in the top level directory
   4  * PROJECT:     ReactOS system libraries
   5  * FILE:        lib/crtdll/sys/fstat.c
   6  * PURPOSE:     Gather file information
   7  * PROGRAMER:   Boudewijn Dekker
   8  * UPDATE HISTORY:
   9  *              28/12/98: Created
  10  */
  11 #include <windows.h>
  12 #include <msvcrt/sys/types.h>
  13 #include <msvcrt/sys/stat.h>
  14 #include <msvcrt/fcntl.h>
  15 #include <msvcrt/string.h>
  16 #include <msvcrt/errno.h>
  17 #include <msvcrt/internal/file.h>
  18
  19
  20 /*
  21  * @implemented
  22  */
  23 int _fstat(int fd, struct stat* statbuf)
  24 {
  25     BY_HANDLE_FILE_INFORMATION FileInformation;
  26
  27     if (!statbuf) {
  28         __set_errno(EINVAL);
  29         return -1;
  30     }
  31
  32     if (!GetFileInformationByHandle(_get_osfhandle(fd),&FileInformation)) {
  33         __set_errno (EBADF);
  34         return -1;
  35     }
  36     statbuf->st_ctime = FileTimeToUnixTime(&FileInformation.ftCreationTime,NULL);
  37     statbuf->st_atime = FileTimeToUnixTime(&FileInformation.ftLastAccessTime,NULL);
  38     statbuf->st_mtime = FileTimeToUnixTime(&FileInformation.ftLastWriteTime,NULL);
  39     if (statbuf->st_atime ==0)
  40         statbuf->st_atime = statbuf->st_mtime;
  41     if (statbuf->st_ctime ==0)
  42         statbuf->st_ctime = statbuf->st_mtime;
  43
  44     statbuf->st_dev = FileInformation.dwVolumeSerialNumber;
  45     statbuf->st_size = FileInformation.nFileSizeLow;
  46     statbuf->st_nlink = FileInformation.nNumberOfLinks;
  47     statbuf->st_mode = S_IREAD;
  48     if (FileInformation.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
  49         statbuf->st_mode |= S_IFDIR | S_IEXEC;
  50     else
  51         statbuf->st_mode |= S_IFREG;
  52     if (!(FileInformation.dwFileAttributes & FILE_ATTRIBUTE_READONLY))
  53         statbuf->st_mode |= S_IWRITE;
  54     return 0;
  55 }