/* Copyright (C) 1998-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#ifndef _STROPTS_H

#define _STROPTS_H	1

#include <features.h>

#include <bits/types.h>

#include <bits/xtitypes.h>

#ifndef __gid_t_defined

typedef __gid_t gid_t;

# define __gid_t_defined

#endif

#ifndef __uid_t_defined

typedef __uid_t uid_t;

# define __uid_t_defined

#endif

typedef __t_scalar_t t_scalar_t;

typedef __t_uscalar_t t_uscalar_t;

/* Get system specific constants.  */

#include <bits/stropts.h>

__BEGIN_DECLS

/* Test whether FILDES is associated with a STREAM-based file.  */

extern int isastream (int __fildes) __THROW;

/* Receive next message from a STREAMS file.

   This function is a cancellation point and therefore not marked with

   __THROW.  */

extern int getmsg (int __fildes, struct strbuf *__restrict __ctlptr,

		   struct strbuf *__restrict __dataptr,

		   int *__restrict __flagsp);

/* Receive next message from a STREAMS file, with *FLAGSP allowing to

   control which message.

   This function is a cancellation point and therefore not marked with

   __THROW.  */

extern int getpmsg (int __fildes, struct strbuf *__restrict __ctlptr,

		    struct strbuf *__restrict __dataptr,

		    int *__restrict __bandp, int *__restrict __flagsp);

/* Perform the I/O control operation specified by REQUEST on FD.

   One argument may follow; its presence and type depend on REQUEST.

   Return value depends on REQUEST.  Usually -1 indicates error.  */

extern int ioctl (int __fd, unsigned long int __request, ...) __THROW;

/* Send a message on a STREAM.

   This function is a cancellation point and therefore not marked with

   __THROW.  */

extern int putmsg (int __fildes, const struct strbuf *__ctlptr,

		   const struct strbuf *__dataptr, int __flags);

/* Send a message on a STREAM to the BAND.

   This function is a cancellation point and therefore not marked with

   __THROW.  */

extern int putpmsg (int __fildes, const struct strbuf *__ctlptr,

		    const struct strbuf *__dataptr, int __band, int __flags);

/* Attach a STREAMS-based file descriptor FILDES to a file PATH in the

   file system name space.  */

extern int fattach (int __fildes, const char *__path) __THROW;

/* Detach a name PATH from a STREAMS-based file descriptor.  */

extern int fdetach (const char *__path) __THROW;

__END_DECLS

#endif /* stropts.h */