winsup/cygwin/fhandler/dev_fd.cc

   1 /* fhandler_process_fd.cc: fhandler for the /dev/{fd,std{in,out,err}} symlinks
   2
   3 This file is part of Cygwin.
   4
   5 This software is a copyrighted work licensed under the terms of the
   6 Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
   7 details. */
   8
   9 #include "winsup.h"
  10 #include "path.h"
  11 #include "fhandler.h"
  12
  13 fhandler_dev_fd::fhandler_dev_fd ():
  14   fhandler_virtual ()
  15 {
  16 }
  17
  18 virtual_ftype_t
  19 fhandler_dev_fd::exists ()
  20 {
  21   return virt_symlink;
  22 }
  23
  24 int
  25 fhandler_dev_fd::fstat (struct stat *buf)
  26 {
  27   const char *path = get_name ();
  28   debug_printf ("fstat (%s)", path);
  29
  30   fhandler_base::fstat (buf);
  31
  32   buf->st_mode = S_IFLNK | STD_RBITS | S_IWUSR | S_IWGRP | S_IWOTH | STD_XBITS;
  33   buf->st_ino = get_ino ();
  34
  35   return 0;
  36 }
  37
  38 bool
  39 fhandler_dev_fd::fill_filebuf ()
  40 {
  41   const char *path = get_name ();
  42   debug_printf ("fill_filebuf (%s)", path);
  43
  44   const char *native = get_native_name ();
  45   if (!native)
  46     {
  47       return false;
  48     }
  49
  50   free(filebuf);
  51   filebuf = cstrdup (native);
  52   return true;
  53 }