60 lines
950 B
C++
60 lines
950 B
C++
/* fhandler_dev_zero.cc: code to access /dev/zero
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Copyright 2000 Cygnus Solutions.
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Written by DJ Delorie (dj@cygnus.com)
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include "winsup.h"
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#include <errno.h>
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#include "fhandler.h"
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fhandler_dev_zero::fhandler_dev_zero (const char *name)
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: fhandler_base (FH_ZERO, name)
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{
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set_cb (sizeof *this);
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}
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int
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fhandler_dev_zero::open (const char *, int flags, mode_t)
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{
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set_flags (flags);
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return 1;
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}
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int
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fhandler_dev_zero::write (const void *, size_t len)
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{
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return len;
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}
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int
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fhandler_dev_zero::read (void *ptr, size_t len)
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{
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memset(ptr, 0, len);
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return len;
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}
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off_t
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fhandler_dev_zero::lseek (off_t, int)
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{
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return 0;
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}
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int
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fhandler_dev_zero::close (void)
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{
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return 0;
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}
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void
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fhandler_dev_zero::dump ()
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{
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paranoid_printf("here, fhandler_dev_zero");
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}
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