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0476bae576
SNDCTL_DSP_GETBLKSIZE operation. Remove obsolete 'name' arg from fhandler_* constructors throughout. * winsup.h (winsock_active): New macro. (winsock2_active): Ditto. * autoload.cc (wsock_init): Use new macros to decide if winsock or winsock2 is loaded. (nonexist_wsock32): Dummy function to force winsock load. (nonexist_ws2_32): Dummy function to force winsock2 load. * fhandler.h (fhandler_socket::fstat): Declare new method. Currently unused. * fhandler_socket.cc (fhandler_socket::fixup_before_fork_exec): Check that winsock2 is active before trying WSADuplicateSocketA. (fhandler_socket::fixup_after_fork): Add extra check for winsock2_active. Otherwise use iffy procedures for Windows 95. (fhandler_socket::fixup_after_exec): Add debugging. (fhandler_socket::dup): Add debugging. (fhandler_socket::fstat): New method. (fhandler_socket::set_close_on_exec): Attempt to perform iffy stuff on Windows 95. * errno.cc (_sys_nerr): Work around compiler strangeness. * pinfo.cc (winpids::add): Add extra element at end of allocated array for setting to NULL. (winpids::enumNT): Ditto. (winpids::init): Don't modify pidlist if it hasn't been allocated (possibly due to malloc problem).
62 lines
973 B
C++
62 lines
973 B
C++
/* fhandler_dev_zero.cc: code to access /dev/zero
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Copyright 2000, 2001 Red Hat, Inc.
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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 "security.h"
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#include "fhandler.h"
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fhandler_dev_zero::fhandler_dev_zero ()
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: fhandler_base (FH_ZERO)
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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 (path_conv *, int flags, mode_t)
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{
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set_flags (flags);
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set_open_status ();
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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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