reactos/lib/crtdll/sys_stat/fstat.c

   1 /* $Id: fstat.c,v 1.12 2002/11/29 12:27:49 robd Exp $
   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 int _fstat(int fd, struct stat* statbuf)
  21 {
  22     BY_HANDLE_FILE_INFORMATION FileInformation;
  23
  24     if (!statbuf) {
  25         __set_errno(EINVAL);
  26         return -1;
  27     }
  28
  29     if (!GetFileInformationByHandle(_get_osfhandle(fd),&FileInformation)) {
  30         __set_errno (EBADF);
  31         return -1;
  32     }
  33     statbuf->st_ctime = FileTimeToUnixTime(&FileInformation.ftCreationTime,NULL);
  34     statbuf->st_atime = FileTimeToUnixTime(&FileInformation.ftLastAccessTime,NULL);
  35     statbuf->st_mtime = FileTimeToUnixTime(&FileInformation.ftLastWriteTime,NULL);
  36     if (statbuf->st_atime ==0)
  37         statbuf->st_atime = statbuf->st_mtime;
  38     if (statbuf->st_ctime ==0)
  39         statbuf->st_ctime = statbuf->st_mtime;
  40
  41     statbuf->st_dev = FileInformation.dwVolumeSerialNumber;
  42     statbuf->st_size = FileInformation.nFileSizeLow;
  43     statbuf->st_nlink = FileInformation.nNumberOfLinks;
  44     statbuf->st_mode = S_IREAD;
  45     if (FileInformation.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
  46         statbuf->st_mode |= S_IFDIR | S_IEXEC;
  47     else
  48         statbuf->st_mode |= S_IFREG;
  49     if (!(FileInformation.dwFileAttributes & FILE_ATTRIBUTE_READONLY))
  50         statbuf->st_mode |= S_IWRITE;
  51     return 0;
  52 }