misc/sys/ioctl.h

   1 /* Copyright (C) 1991, 1992, 1993, 1994 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
  16 not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #ifndef _SYS_IOCTL_H
  20
  21 #define _SYS_IOCTL_H    1
  22 #include <features.h>
  23
  24 __BEGIN_DECLS
  25
  26 /* Get the list of `ioctl' requests and related constants.  */
  27 #include <ioctls.h>
  28
  29 /* On a Unix system, the system <sys/ioctl.h> probably defines some of the
  30    symbols we define in <sys/ttydefaults.h> (usually with the same values).
  31    The code to generate <ioctls.h> has omitted these symbols to avoid the
  32    conflict, but a Unix program expects <sys/ioctl.h> to define them, so we
  33    must include <sys/ttydefaults.h> here.  */
  34 #include <sys/ttydefaults.h>
  35
  36 #if     defined(TIOCGETC) || defined(TIOCSETC)
  37 /* Type of ARG for TIOCGETC and TIOCSETC requests.  */
  38 struct tchars
  39 {
  40   char t_intrc;                 /* Interrupt character.  */
  41   char t_quitc;                 /* Quit character.  */
  42   char t_startc;                /* Start-output character.  */
  43   char t_stopc;                 /* Stop-output character.  */
  44   char t_eofc;                  /* End-of-file character.  */
  45   char t_brkc;                  /* Input delimiter character.  */
  46 };
  47
  48 #define _IOT_tchars     /* Hurd ioctl type field.  */ \
  49   _IOT (_IOTS (char), 6, 0, 0, 0, 0)
  50 #endif
  51
  52 #if     defined(TIOCGLTC) || defined(TIOCSLTC)
  53 /* Type of ARG for TIOCGLTC and TIOCSLTC requests.  */
  54 struct ltchars
  55 {
  56   char t_suspc;                 /* Suspend character.  */
  57   char t_dsuspc;                /* Delayed suspend character.  */
  58   char t_rprntc;                /* Reprint-line character.  */
  59   char t_flushc;                /* Flush-output character.  */
  60   char t_werasc;                /* Word-erase character.  */
  61   char t_lnextc;                /* Literal-next character.  */
  62 };
  63
  64 #define _IOT_ltchars    /* Hurd ioctl type field.  */ \
  65   _IOT (_IOTS (char), 6, 0, 0, 0, 0)
  66 #endif
  67
  68 /* Type of ARG for TIOCGETP and TIOCSETP requests (and gtty and stty).  */
  69 struct sgttyb
  70 {
  71   char sg_ispeed;               /* Input speed.  */
  72   char sg_ospeed;               /* Output speed.  */
  73   char sg_erase;                /* Erase character.  */
  74   char sg_kill;                 /* Kill character.  */
  75   short int sg_flags;           /* Mode flags.  */
  76 };
  77
  78 #define _IOT_sgttyb     /* Hurd ioctl type field.  */ \
  79   _IOT (_IOTS (char), 6, _IOTS (short int), 1, 0, 0)
  80
  81 #if     defined(TIOCGWINSZ) || defined(TIOCSWINSZ)
  82 /* Type of ARG for TIOCGWINSZ and TIOCSWINSZ requests.  */
  83 struct winsize
  84 {
  85   unsigned short int ws_row;    /* Rows, in characters.  */
  86   unsigned short int ws_col;    /* Columns, in characters.  */
  87
  88   /* These are not actually used.  */
  89   unsigned short int ws_xpixel; /* Horizontal pixels.  */
  90   unsigned short int ws_ypixel; /* Vertical pixels.  */
  91 };
  92
  93 #define _IOT_winsize    /* Hurd ioctl type field.  */ \
  94   _IOT (_IOTS (unsigned short int), 4, 0, 0, 0, 0)
  95 #endif
  96
  97 #if     defined (TIOCGSIZE) || defined (TIOCSSIZE)
  98 #  if defined (TIOCGWINSZ) && TIOCGSIZE == TIOCGWINSZ
  99 /* Many systems that have TIOCGWINSZ define TIOCGSIZE for source
 100    compatibility with Sun; they define `struct ttysize' to have identical
 101    layout as `struct winsize' and #define TIOCGSIZE to be TIOCGWINSZ
 102    (likewise TIOCSSIZE and TIOCSWINSZ).  */
 103 struct ttysize
 104 {
 105   unsigned short int ts_lines;
 106   unsigned short int ts_cols;
 107   unsigned short int ts_xxx;
 108   unsigned short int ts_yyy;
 109 };
 110 #define _IOT_ttysize    _IOT_winsize
 111 #  else
 112 /* Suns use a different layout for `struct ttysize', and TIOCGSIZE and
 113    TIOCGWINSZ are separate commands that do the same thing with different
 114    structures (likewise TIOCSSIZE and TIOCSWINSZ).  */
 115 struct ttysize
 116 {
 117   int ts_lines, ts_cols;        /* Lines and columns, in characters.  */
 118 };
 119 #  endif
 120 #endif
 121
 122 /* Perform the I/O control operation specified by REQUEST on FD.
 123    One argument may follow; its presence and type depend on REQUEST.
 124    Return value depends on REQUEST.  Usually -1 indicates error.  */
 125 extern int __ioctl __P ((int __fd, unsigned long int __request, ...));
 126 extern int ioctl __P ((int __fd, unsigned long int __request, ...));
 127
 128 __END_DECLS
 129
 130 #endif /* sys/ioctl.h */