termios/termios.h

   1 /* Copyright (C) 1991, 92, 93, 94, 96 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 Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 /*
  20  *      POSIX Standard: 7.1-2 General Terminal Interface        <termios.h>
  21  */
  22
  23 #ifndef _TERMIOS_H
  24
  25 #define _TERMIOS_H      1
  26 #include <features.h>
  27
  28 __BEGIN_DECLS
  29
  30 /* Get the system-dependent definitions of `struct termios', `tcflag_t',
  31    `cc_t', `speed_t', and all the macros specifying the flag bits.  */
  32 #include <termbits.h>
  33
  34 #ifdef __USE_BSD
  35 /* Compare a character C to a value VAL from the `c_cc' array in a
  36    `struct termios'.  If VAL is _POSIX_VDISABLE, no character can match it.  */
  37 #define CCEQ(val, c)    ((c) == (val) && (val) != _POSIX_VDISABLE)
  38 #endif
  39
  40 /* Return the output baud rate stored in *TERMIOS_P.  */
  41 extern speed_t cfgetospeed __P ((__const struct termios *__termios_p));
  42
  43 /* Return the input baud rate stored in *TERMIOS_P.  */
  44 extern speed_t cfgetispeed __P ((__const struct termios *__termios_p));
  45
  46 /* Set the output baud rate stored in *TERMIOS_P to SPEED.  */
  47 extern int cfsetospeed __P ((struct termios *__termios_p, speed_t __speed));
  48
  49 /* Set the input baud rate stored in *TERMIOS_P to SPEED.  */
  50 extern int cfsetispeed __P ((struct termios *__termios_p, speed_t __speed));
  51
  52 #ifdef  __USE_BSD
  53 /* Set both the input and output baud rates in *TERMIOS_OP to SPEED.  */
  54 extern void cfsetspeed __P ((struct termios *__termios_p, speed_t __speed));
  55 #endif
  56
  57
  58 /* Put the state of FD into *TERMIOS_P.  */
  59 extern int __tcgetattr __P ((int __fd, struct termios *__termios_p));
  60 extern int tcgetattr __P ((int __fd, struct termios *__termios_p));
  61
  62 /* Set the state of FD to *TERMIOS_P.
  63    Values for OPTIONAL_ACTIONS (TCSA*) are in <termbits.h>.  */
  64 extern int tcsetattr __P ((int __fd, int __optional_actions,
  65                            __const struct termios *__termios_p));
  66
  67
  68 #ifdef  __USE_BSD
  69 /* Set *TERMIOS_P to indicate raw mode.  */
  70 extern void cfmakeraw __P ((struct termios *__termios_p));
  71 #endif
  72
  73 /* Send zero bits on FD.  */
  74 extern int tcsendbreak __P ((int __fd, int __duration));
  75
  76 /* Wait for pending output to be written on FD.  */
  77 extern int tcdrain __P ((int __fd));
  78
  79 /* Flush pending data on FD.
  80    Values for QUEUE_SELECTOR (TC{I,O,IO}FLUSH) are in <termbits.h>.  */
  81 extern int tcflush __P ((int __fd, int __queue_selector));
  82
  83 /* Suspend or restart transmission on FD.
  84    Values for ACTION (TC[IO]{OFF,ON}) are in <termbits.h>.  */
  85 extern int tcflow __P ((int __fd, int __action));
  86
  87
  88 #ifdef __USE_BSD
  89 #include <sys/ttydefaults.h>
  90 #endif
  91
  92 __END_DECLS
  93
  94 #endif /* termios.h  */