streams/stropts.h

   1 /* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #ifndef _STROPTS_H
  20 #define _STROPTS_H      1
  21
  22 #include <features.h>
  23 #include <bits/types.h>
  24
  25 /* Get system specific contants.  */
  26 #include <bits/stropts.h>
  27
  28
  29 __BEGIN_DECLS
  30
  31 /* Test whether FILDES is associated with a STREAM-based file.  */
  32 extern int isastream (int __fildes) __THROW;
  33
  34 /* Receive next message from a STREAMS file.  */
  35 extern int getmsg (int __fildes, struct strbuf *__ctlptr,
  36                    struct strbuf *__dataptr, int *__flagsp) __THROW;
  37
  38 /* Receive next message from a STREAMS file, with *FLAGSP allowing to
  39    control which message.  */
  40 extern int getpmsg (int __fildes, struct strbuf *__ctlptr,
  41                     struct strbuf *__dataptr, int *__bandp, int *__flagsp)
  42      __THROW;
  43
  44 /* Perform the I/O control operation specified by REQUEST on FD.
  45    One argument may follow; its presence and type depend on REQUEST.
  46    Return value depends on REQUEST.  Usually -1 indicates error.  */
  47 extern int ioctl (int __fd, unsigned long int __request, ...) __THROW;
  48
  49 /* Send a message on a STREAM.  */
  50 extern int putmsg (int __fildes, __const struct strbuf *__ctlptr,
  51                    __const struct strbuf *__dataptr, int __flags) __THROW;
  52
  53 /* Send a message on a STREAM to the BAND.  */
  54 extern int putpmsg (int __fildes, __const struct strbuf *__ctlptr,
  55                     __const struct strbuf *__dataptr, int __band, int __flags)
  56      __THROW;
  57
  58 /* Attach a STREAMS-based file descriptor FILDES to a file PATH in the
  59    file system name space.  */
  60 extern int fattach (int __fildes, __const char *__path) __THROW;
  61
  62 /* Detach a name PATH from a STREAMS-based file descriptor.  */
  63 extern int fdetach (__const char *__path) __THROW;
  64
  65 __END_DECLS
  66
  67 #endif /* stropts.h */