streams/stropts.h

   1 /* Copyright (C) 1998, 1999, 2000 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
  25 #ifndef __gid_t_defined
  26 typedef __gid_t gid_t;
  27 # define __gid_t_defined
  28 #endif
  29
  30 #ifndef __uid_t_defined
  31 typedef __uid_t uid_t;
  32 # define __uid_t_defined
  33 #endif
  34
  35 typedef __t_uscalar_t t_uscalar_t;
  36
  37 /* Get system specific contants.  */
  38 #include <bits/stropts.h>
  39
  40
  41 __BEGIN_DECLS
  42
  43 /* Test whether FILDES is associated with a STREAM-based file.  */
  44 extern int isastream (int __fildes) __THROW;
  45
  46 /* Receive next message from a STREAMS file.  */
  47 extern int getmsg (int __fildes, struct strbuf *__restrict __ctlptr,
  48                    struct strbuf *__restrict __dataptr,
  49                    int *__restrict __flagsp) __THROW;
  50
  51 /* Receive next message from a STREAMS file, with *FLAGSP allowing to
  52    control which message.  */
  53 extern int getpmsg (int __fildes, struct strbuf *__restrict __ctlptr,
  54                     struct strbuf *__restrict __dataptr,
  55                     int *__restrict __bandp, int *__restrict __flagsp)
  56      __THROW;
  57
  58 /* Perform the I/O control operation specified by REQUEST on FD.
  59    One argument may follow; its presence and type depend on REQUEST.
  60    Return value depends on REQUEST.  Usually -1 indicates error.  */
  61 extern int ioctl (int __fd, unsigned long int __request, ...) __THROW;
  62
  63 /* Send a message on a STREAM.  */
  64 extern int putmsg (int __fildes, __const struct strbuf *__ctlptr,
  65                    __const struct strbuf *__dataptr, int __flags) __THROW;
  66
  67 /* Send a message on a STREAM to the BAND.  */
  68 extern int putpmsg (int __fildes, __const struct strbuf *__ctlptr,
  69                     __const struct strbuf *__dataptr, int __band, int __flags)
  70      __THROW;
  71
  72 /* Attach a STREAMS-based file descriptor FILDES to a file PATH in the
  73    file system name space.  */
  74 extern int fattach (int __fildes, __const char *__path) __THROW;
  75
  76 /* Detach a name PATH from a STREAMS-based file descriptor.  */
  77 extern int fdetach (__const char *__path) __THROW;
  78
  79 __END_DECLS
  80
  81 #endif /* stropts.h */