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/* ioctl.c --- wrappers for Windows ioctl function
Copyright (C) 2008-2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Paolo Bonzini */
#include <config.h>
#include <sys/ioctl.h>
#include <stdarg.h>
#if HAVE_IOCTL
/* Provide a wrapper with the POSIX prototype. */
# undef ioctl
int
rpl_ioctl (int fd, int request, ... /* {void *,char *} arg */)
{
void *buf;
va_list args;
va_start (args, request);
buf = va_arg (args, void *);
va_end (args);
/* Cast 'request' so that when the system's ioctl function takes a 64-bit
request argument, the value gets zero-extended, not sign-extended. */
return ioctl (fd, (unsigned int) request, buf);
}
#else /* mingw */
# define WIN32_LEAN_AND_MEAN
/* Get winsock2.h. */
# include <sys/socket.h>
/* Get set_winsock_errno, FD_TO_SOCKET etc. */
# include "w32sock.h"
int
ioctl (int fd, int req, ...)
{
# if GNULIB_SOCKET
void *buf;
va_list args;
SOCKET sock;
int r;
va_start (args, req);
buf = va_arg (args, void *);
va_end (args);
/* We don't support FIONBIO on pipes here. If you want to make pipe
fds non-blocking, use the gnulib 'nonblocking' module, until
gnulib implements fcntl F_GETFL / F_SETFL with O_NONBLOCK. */
sock = FD_TO_SOCKET (fd);
r = ioctlsocket (sock, req, buf);
if (r < 0)
set_winsock_errno ();
return r;
# else
errno = ENOSYS;
return -1;
# endif
}
#endif
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