lib/crtdll/sys_stat/fstat.c

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