reactos/lib/msvcrt/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 <msvcrt/sys/types.h>
  12 #include <msvcrt/sys/stat.h>
  13 #include <msvcrt/fcntl.h>
  14 #include <msvcrt/string.h>
  15 #include <msvcrt/errno.h>
  16 #include <msvcrt/internal/file.h>
  17
  18
  19 int _fstat(int fd, struct stat *statbuf)
  20 {
  21   BY_HANDLE_FILE_INFORMATION  FileInformation;
  22
  23   if (!statbuf)
  24     {
  25       __set_errno(EINVAL);
  26       return -1;
  27     }
  28
  29   if (!GetFileInformationByHandle(_get_osfhandle(fd),&FileInformation))
  30     {
  31       __set_errno(EBADF);
  32       return -1;
  33     }
  34   statbuf->st_ctime = FileTimeToUnixTime(&FileInformation.ftCreationTime,NULL);
  35   statbuf->st_atime = FileTimeToUnixTime(&FileInformation.ftLastAccessTime,NULL);
  36   statbuf->st_mtime = FileTimeToUnixTime(&FileInformation.ftLastWriteTime,NULL);
  37
  38   statbuf->st_dev = fd;
  39   statbuf->st_size = FileInformation.nFileSizeLow;
  40   statbuf->st_mode = S_IREAD;
  41   if (FileInformation.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) statbuf->st_mode |= S_IFDIR;
  42   if (!(FileInformation.dwFileAttributes & FILE_ATTRIBUTE_READONLY)) statbuf->st_mode |= S_IWRITE;
  43
  44   return 0;
  45 }
  46
  47 __int64 _fstati64 (int fd, struct _stati64* statbuf)
  48 {
  49   BY_HANDLE_FILE_INFORMATION FileInformation;
  50
  51   if (!statbuf)
  52     {
  53       __set_errno(EINVAL);
  54       return -1;
  55     }
  56
  57   if (!GetFileInformationByHandle(_get_osfhandle(fd),
  58                                   &FileInformation))
  59     {
  60       __set_errno(EBADF);
  61       return -1;
  62     }
  63   statbuf->st_ctime = FileTimeToUnixTime(&FileInformation.ftCreationTime,NULL);
  64   statbuf->st_atime = FileTimeToUnixTime(&FileInformation.ftLastAccessTime,NULL);
  65   statbuf->st_mtime = FileTimeToUnixTime(&FileInformation.ftLastWriteTime,NULL);
  66
  67   statbuf->st_dev = fd;
  68   statbuf->st_size = (((__int64)FileInformation.nFileSizeHigh) << 32) +
  69                      FileInformation.nFileSizeLow;
  70   statbuf->st_mode = S_IREAD;
  71   if (FileInformation.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) statbuf->st_mode |= S_IFDIR;
  72   if (!(FileInformation.dwFileAttributes & FILE_ATTRIBUTE_READONLY)) statbuf->st_mode |= S_IWRITE;
  73   return 0;
  74 }