streams/stropts.h

   1 /* Copyright (C) 1998, 1999, 2000, 2002 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 Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the 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    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #ifndef _STROPTS_H
  20 #define _STROPTS_H      1
  21
  22 #include <features.h>
  23 #include <bits/types.h>
  24 #include <bits/xtitypes.h>
  25
  26 #ifndef __gid_t_defined
  27 typedef __gid_t gid_t;
  28 # define __gid_t_defined
  29 #endif
  30
  31 #ifndef __uid_t_defined
  32 typedef __uid_t uid_t;
  33 # define __uid_t_defined
  34 #endif
  35
  36 typedef __t_uscalar_t t_uscalar_t;
  37
  38 /* Get system specific contants.  */
  39 #include <bits/stropts.h>
  40
  41
  42 __BEGIN_DECLS
  43
  44 /* Test whether FILDES is associated with a STREAM-based file.  */
  45 extern int isastream (int __fildes) __THROW;
  46
  47 /* Receive next message from a STREAMS file.  */
  48 extern int getmsg (int __fildes, struct strbuf *__restrict __ctlptr,
  49                    struct strbuf *__restrict __dataptr,
  50                    int *__restrict __flagsp) __THROW;
  51
  52 /* Receive next message from a STREAMS file, with *FLAGSP allowing to
  53    control which message.  */
  54 extern int getpmsg (int __fildes, struct strbuf *__restrict __ctlptr,
  55                     struct strbuf *__restrict __dataptr,
  56                     int *__restrict __bandp, int *__restrict __flagsp)
  57      __THROW;
  58
  59 /* Perform the I/O control operation specified by REQUEST on FD.
  60    One argument may follow; its presence and type depend on REQUEST.
  61    Return value depends on REQUEST.  Usually -1 indicates error.  */
  62 extern int ioctl (int __fd, unsigned long int __request, ...) __THROW;
  63
  64 /* Send a message on a STREAM.  */
  65 extern int putmsg (int __fildes, __const struct strbuf *__ctlptr,
  66                    __const struct strbuf *__dataptr, int __flags) __THROW;
  67
  68 /* Send a message on a STREAM to the BAND.  */
  69 extern int putpmsg (int __fildes, __const struct strbuf *__ctlptr,
  70                     __const struct strbuf *__dataptr, int __band, int __flags)
  71      __THROW;
  72
  73 /* Attach a STREAMS-based file descriptor FILDES to a file PATH in the
  74    file system name space.  */
  75 extern int fattach (int __fildes, __const char *__path) __THROW;
  76
  77 /* Detach a name PATH from a STREAMS-based file descriptor.  */
  78 extern int fdetach (__const char *__path) __THROW;
  79
  80 __END_DECLS
  81
  82 #endif /* stropts.h */