termios/termios.h

   1 /* Copyright (C) 1991, 92, 93, 94, 96, 97 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 /*
  20  *      POSIX Standard: 7.1-2 General Terminal Interface        <termios.h>
  21  */
  22
  23 #ifndef _TERMIOS_H
  24 #define _TERMIOS_H      1
  25
  26 #include <features.h>
  27 #ifdef __USE_UNIX98
  28 /* We need `pid_t'.  */
  29 # include <bits/types.h>
  30 # ifndef pid_t
  31 typedef __pid_t pid_t;
  32 #  define pid_t pid_t
  33 # endif
  34 #endif
  35
  36 __BEGIN_DECLS
  37
  38 /* Get the system-dependent definitions of `struct termios', `tcflag_t',
  39    `cc_t', `speed_t', and all the macros specifying the flag bits.  */
  40 #include <bits/termios.h>
  41
  42 #ifdef __USE_BSD
  43 /* Compare a character C to a value VAL from the `c_cc' array in a
  44    `struct termios'.  If VAL is _POSIX_VDISABLE, no character can match it.  */
  45 # define CCEQ(val, c)   ((c) == (val) && (val) != _POSIX_VDISABLE)
  46 #endif
  47
  48 /* Return the output baud rate stored in *TERMIOS_P.  */
  49 extern speed_t cfgetospeed __P ((__const struct termios *__termios_p));
  50
  51 /* Return the input baud rate stored in *TERMIOS_P.  */
  52 extern speed_t cfgetispeed __P ((__const struct termios *__termios_p));
  53
  54 /* Set the output baud rate stored in *TERMIOS_P to SPEED.  */
  55 extern int cfsetospeed __P ((struct termios *__termios_p, speed_t __speed));
  56
  57 /* Set the input baud rate stored in *TERMIOS_P to SPEED.  */
  58 extern int cfsetispeed __P ((struct termios *__termios_p, speed_t __speed));
  59
  60 #ifdef  __USE_BSD
  61 /* Set both the input and output baud rates in *TERMIOS_OP to SPEED.  */
  62 extern int cfsetspeed __P ((struct termios *__termios_p, speed_t __speed));
  63 #endif
  64
  65
  66 /* Put the state of FD into *TERMIOS_P.  */
  67 extern int __tcgetattr __P ((int __fd, struct termios *__termios_p));
  68 extern int tcgetattr __P ((int __fd, struct termios *__termios_p));
  69
  70 /* Set the state of FD to *TERMIOS_P.
  71    Values for OPTIONAL_ACTIONS (TCSA*) are in <bits/termios.h>.  */
  72 extern int tcsetattr __P ((int __fd, int __optional_actions,
  73                            __const struct termios *__termios_p));
  74
  75
  76 #ifdef  __USE_BSD
  77 /* Set *TERMIOS_P to indicate raw mode.  */
  78 extern void cfmakeraw __P ((struct termios *__termios_p));
  79 #endif
  80
  81 /* Send zero bits on FD.  */
  82 extern int tcsendbreak __P ((int __fd, int __duration));
  83
  84 /* Wait for pending output to be written on FD.  */
  85 extern int tcdrain __P ((int __fd));
  86
  87 /* Flush pending data on FD.
  88    Values for QUEUE_SELECTOR (TC{I,O,IO}FLUSH) are in <bits/termios.h>.  */
  89 extern int tcflush __P ((int __fd, int __queue_selector));
  90
  91 /* Suspend or restart transmission on FD.
  92    Values for ACTION (TC[IO]{OFF,ON}) are in <bits/termios.h>.  */
  93 extern int tcflow __P ((int __fd, int __action));
  94
  95
  96 #ifdef __USE_UNIX98
  97 /* Get process group ID for session leader for controlling terminal FD.  */
  98 extern __pid_t tcgetsid __P ((int __fd));
  99 #endif
 100
 101
 102 #ifdef __USE_BSD
 103 # include <sys/ttydefaults.h>
 104 #endif
 105
 106 __END_DECLS
 107
 108 #endif /* termios.h  */