bits/termios.h

   1 /* termios type and macro definitions.  4.4 BSD/generic GNU version.
   2    Copyright (C) 1993, 1994, 1996, 1997 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef _TERMIOS_H
  21 # error "Never include <bits/termios.h> directly; use <termios.h> instead."
  22 #endif
  23
  24 /* These macros are also defined in some <bits/ioctls.h> files (with
  25    numerically identical values), but this serves to shut up cpp's
  26    complaining. */
  27 #ifdef __USE_BSD
  28
  29 # ifdef MDMBUF
  30 #  undef MDMBUF
  31 # endif
  32 # ifdef FLUSHO
  33 #  undef FLUSHO
  34 # endif
  35 # ifdef PENDIN
  36 #  undef PENDIN
  37 # endif
  38
  39 #endif /* __USE_BSD */
  40
  41 #ifdef ECHO
  42 # undef ECHO
  43 #endif
  44 #ifdef TOSTOP
  45 # undef TOSTOP
  46 #endif
  47 #ifdef NOFLSH
  48 # undef NOFLSH
  49 #endif
  50
  51
  52 /* These definitions match those used by the 4.4 BSD kernel.
  53    If the operating system has termios system calls or ioctls that
  54    correctly implement the POSIX.1 behavior, there should be a
  55    system-dependent version of this file that defines `struct termios',
  56    `tcflag_t', `cc_t', `speed_t' and the `TC*' constants appropriately.  */
  57
  58 /* Type of terminal control flag masks.  */
  59 typedef unsigned long int tcflag_t;
  60
  61 /* Type of control characters.  */
  62 typedef unsigned char cc_t;
  63
  64 /* Type of baud rate specifiers.  */
  65 typedef long int speed_t;
  66
  67 /* Terminal control structure.  */
  68 struct termios
  69 {
  70   /* Input modes.  */
  71   tcflag_t c_iflag;
  72 #define IGNBRK  (1 << 0)        /* Ignore break condition.  */
  73 #define BRKINT  (1 << 1)        /* Signal interrupt on break.  */
  74 #define IGNPAR  (1 << 2)        /* Ignore characters with parity errors.  */
  75 #define PARMRK  (1 << 3)        /* Mark parity and framing errors.  */
  76 #define INPCK   (1 << 4)        /* Enable input parity check.  */
  77 #define ISTRIP  (1 << 5)        /* Strip 8th bit off characters.  */
  78 #define INLCR   (1 << 6)        /* Map NL to CR on input.  */
  79 #define IGNCR   (1 << 7)        /* Ignore CR.  */
  80 #define ICRNL   (1 << 8)        /* Map CR to NL on input.  */
  81 #define IXON    (1 << 9)        /* Enable start/stop output control.  */
  82 #define IXOFF   (1 << 10)       /* Enable start/stop input control.  */
  83 #ifdef  __USE_BSD
  84 #define IXANY   (1 << 11)       /* Any character will restart after stop.  */
  85 #define IMAXBEL (1 << 13)       /* Ring bell when input queue is full.  */
  86 #endif
  87
  88   /* Output modes.  */
  89   tcflag_t c_oflag;
  90 #define OPOST   (1 << 0)        /* Perform output processing.  */
  91 #ifdef  __USE_BSD
  92 # define ONLCR  (1 << 1)        /* Map NL to CR-NL on output.  */
  93 # define OXTABS (1 << 2)        /* Expand tabs to spaces.  */
  94 # define ONOEOT (1 << 8)        /* Discard EOT (^D) on output.  */
  95 #endif
  96
  97   /* Control modes.  */
  98   tcflag_t c_cflag;
  99 #ifdef  __USE_BSD
 100 # define CIGNORE        (1 << 0)        /* Ignore these control flags.  */
 101 #endif
 102 #define CSIZE   (CS5|CS6|CS7|CS8)       /* Number of bits per byte (mask).  */
 103 #define CS5     0               /* 5 bits per byte.  */
 104 #define CS6     (1 << 8)        /* 6 bits per byte.  */
 105 #define CS7     (1 << 9)        /* 7 bits per byte.  */
 106 #define CS8     (CS6|CS7)       /* 8 bits per byte.  */
 107 #define CSTOPB  (1 << 10)       /* Two stop bits instead of one.  */
 108 #define CREAD   (1 << 11)       /* Enable receiver.  */
 109 #define PARENB  (1 << 12)       /* Parity enable.  */
 110 #define PARODD  (1 << 13)       /* Odd parity instead of even.  */
 111 #define HUPCL   (1 << 14)       /* Hang up on last close.  */
 112 #define CLOCAL  (1 << 15)       /* Ignore modem status lines.  */
 113 #ifdef  __USE_BSD
 114 # define CCTS_OFLOW     (1 << 16)       /* CTS flow control of output.  */
 115 # define CRTS_IFLOW     (1 << 17)       /* RTS flow control of input.  */
 116 # define MDMBUF         (1 << 20)       /* Carrier flow control of output.  */
 117 #endif
 118
 119   /* Local modes.  */
 120   tcflag_t c_lflag;
 121 #ifdef  __USE_BSD
 122 # define ECHOKE (1 << 0)        /* Visual erase for KILL.  */
 123 #endif
 124 #define _ECHOE  (1 << 1)        /* Visual erase for ERASE.  */
 125 #define ECHOE   _ECHOE
 126 #define _ECHOK  (1 << 2)        /* Echo NL after KILL.  */
 127 #define ECHOK   _ECHOK
 128 #define _ECHO   (1 << 3)        /* Enable echo.  */
 129 #define ECHO    _ECHO
 130 #define _ECHONL (1 << 4)        /* Echo NL even if ECHO is off.  */
 131 #define ECHONL  _ECHONL
 132 #ifdef  __USE_BSD
 133 # define ECHOPRT        (1 << 5)        /* Hardcopy visual erase.  */
 134 # define ECHOCTL        (1 << 6)        /* Echo control characters as ^X.  */
 135 #endif
 136 #define _ISIG   (1 << 7)        /* Enable signals.  */
 137 #define ISIG    _ISIG
 138 #define _ICANON (1 << 8)        /* Do erase and kill processing.  */
 139 #define ICANON  _ICANON
 140 #ifdef  __USE_BSD
 141 # define ALTWERASE (1 << 9)     /* Alternate WERASE algorithm.  */
 142 #endif
 143 #define _IEXTEN (1 << 10)       /* Enable DISCARD and LNEXT.  */
 144 #define IEXTEN  _IEXTEN
 145 #define EXTPROC (1 << 11)       /* External processing.  */
 146 #define _TOSTOP (1 << 22)       /* Send SIGTTOU for background output.  */
 147 #define TOSTOP  _TOSTOP
 148 #ifdef  __USE_BSD
 149 # define FLUSHO (1 << 23)       /* Output being flushed (state).  */
 150 # define NOKERNINFO (1 << 25)   /* Disable VSTATUS.  */
 151 # define PENDIN (1 << 29)       /* Retype pending input (state).  */
 152 #endif
 153 #define _NOFLSH (1 << 31)       /* Disable flush after interrupt.  */
 154 #define NOFLSH  _NOFLSH
 155
 156   /* Control characters.  */
 157 #define VEOF    0               /* End-of-file character [ICANON].  */
 158 #define VEOL    1               /* End-of-line character [ICANON].  */
 159 #ifdef  __USE_BSD
 160 # define VEOL2  2               /* Second EOL character [ICANON].  */
 161 #endif
 162 #define VERASE  3               /* Erase character [ICANON].  */
 163 #ifdef  __USE_BSD
 164 # define VWERASE        4               /* Word-erase character [ICANON].  */
 165 #endif
 166 #define VKILL   5               /* Kill-line character [ICANON].  */
 167 #ifdef  __USE_BSD
 168 # define VREPRINT 6             /* Reprint-line character [ICANON].  */
 169 #endif
 170 #define VINTR   8               /* Interrupt character [ISIG].  */
 171 #define VQUIT   9               /* Quit character [ISIG].  */
 172 #define VSUSP   10              /* Suspend character [ISIG].  */
 173 #ifdef  __USE_BSD
 174 # define VDSUSP 11              /* Delayed suspend character [ISIG].  */
 175 #endif
 176 #define VSTART  12              /* Start (X-ON) character [IXON, IXOFF].  */
 177 #define VSTOP   13              /* Stop (X-OFF) character [IXON, IXOFF].  */
 178 #ifdef  __USE_BSD
 179 # define VLNEXT 14              /* Literal-next character [IEXTEN].  */
 180 # define VDISCARD 15            /* Discard character [IEXTEN].  */
 181 #endif
 182 #define VMIN    16              /* Minimum number of bytes read at once [!ICANON].  */
 183 #define VTIME   17              /* Time-out value (tenths of a second) [!ICANON].  */
 184 #ifdef  __USE_BSD
 185 # define VSTATUS        18              /* Status character [ICANON].  */
 186 #endif
 187 #define NCCS    20              /* Value duplicated in <hurd/tioctl.defs>.  */
 188   cc_t c_cc[NCCS];
 189
 190   /* Input and output baud rates.  */
 191   speed_t __ispeed, __ospeed;
 192 #define B0      0               /* Hang up.  */
 193 #define B50     50              /* 50 baud.  */
 194 #define B75     75              /* 75 baud.  */
 195 #define B110    110             /* 110 baud.  */
 196 #define B134    134             /* 134.5 baud.  */
 197 #define B150    150             /* 150 baud.  */
 198 #define B200    200             /* 200 baud.  */
 199 #define B300    300             /* 300 baud.  */
 200 #define B600    600             /* 600 baud.  */
 201 #define B1200   1200            /* 1200 baud.  */
 202 #define B1800   1800            /* 1800 baud.  */
 203 #define B2400   2400            /* 2400 baud.  */
 204 #define B4800   4800            /* 4800 baud.  */
 205 #define B9600   9600            /* 9600 baud.  */
 206 #define B19200  19200           /* 19200 baud.  */
 207 #define B38400  38400           /* 38400 baud.  */
 208 #ifdef  __USE_BSD
 209 # define EXTA   19200
 210 # define EXTB   38400
 211 #endif
 212 };
 213
 214 #define _IOT_termios /* Hurd ioctl type field.  */ \
 215   _IOT (_IOTS (tcflag_t), 4, _IOTS (cc_t), NCCS, _IOTS (speed_t), 2)
 216
 217 /* Values for the OPTIONAL_ACTIONS argument to `tcsetattr'.  */
 218 #define TCSANOW         0       /* Change immediately.  */
 219 #define TCSADRAIN       1       /* Change when pending output is written.  */
 220 #define TCSAFLUSH       2       /* Flush pending input before changing.  */
 221 #ifdef  __USE_BSD
 222 # define TCSASOFT       0x10    /* Flag: Don't alter hardware state.  */
 223 #endif
 224
 225 /* Values for the QUEUE_SELECTOR argument to `tcflush'.  */
 226 #define TCIFLUSH        1       /* Discard data received but not yet read.  */
 227 #define TCOFLUSH        2       /* Discard data written but not yet sent.  */
 228 #define TCIOFLUSH       3       /* Discard all pending data.  */
 229
 230 /* Values for the ACTION argument to `tcflow'.  */
 231 #define TCOOFF  1               /* Suspend output.  */
 232 #define TCOON   2               /* Restart suspended output.  */
 233 #define TCIOFF  3               /* Send a STOP character.  */
 234 #define TCION   4               /* Send a START character.  */