bits/termios.h

   1 /* termios type and macro definitions.  4.4 BSD/generic GNU version.
   2    Copyright (C) 1993, 1994, 1996 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 /* These macros are also defined in some <bits/ioctls.h> files (with
  21    numerically identical values), but this serves to shut up cpp's
  22    complaining. */
  23 #ifdef __USE_BSD
  24
  25 #ifdef MDMBUF
  26 #undef MDMBUF
  27 #endif
  28 #ifdef FLUSHO
  29 #undef FLUSHO
  30 #endif
  31 #ifdef PENDIN
  32 #undef PENDIN
  33 #endif
  34
  35 #endif /* __USE_BSD */
  36
  37 #ifdef ECHO
  38 #undef ECHO
  39 #endif
  40 #ifdef TOSTOP
  41 #undef TOSTOP
  42 #endif
  43 #ifdef NOFLSH
  44 #undef NOFLSH
  45 #endif
  46
  47
  48 /* These definitions match those used by the 4.4 BSD kernel.
  49    If the operating system has termios system calls or ioctls that
  50    correctly implement the POSIX.1 behavior, there should be a
  51    system-dependent version of this file that defines `struct termios',
  52    `tcflag_t', `cc_t', `speed_t' and the `TC*' constants appropriately.  */
  53
  54 /* Type of terminal control flag masks.  */
  55 typedef unsigned long int tcflag_t;
  56
  57 /* Type of control characters.  */
  58 typedef unsigned char cc_t;
  59
  60 /* Type of baud rate specifiers.  */
  61 typedef long int speed_t;
  62
  63 /* Terminal control structure.  */
  64 struct termios
  65 {
  66   /* Input modes.  */
  67   tcflag_t c_iflag;
  68 #define IGNBRK  (1 << 0)        /* Ignore break condition.  */
  69 #define BRKINT  (1 << 1)        /* Signal interrupt on break.  */
  70 #define IGNPAR  (1 << 2)        /* Ignore characters with parity errors.  */
  71 #define PARMRK  (1 << 3)        /* Mark parity and framing errors.  */
  72 #define INPCK   (1 << 4)        /* Enable input parity check.  */
  73 #define ISTRIP  (1 << 5)        /* Strip 8th bit off characters.  */
  74 #define INLCR   (1 << 6)        /* Map NL to CR on input.  */
  75 #define IGNCR   (1 << 7)        /* Ignore CR.  */
  76 #define ICRNL   (1 << 8)        /* Map CR to NL on input.  */
  77 #define IXON    (1 << 9)        /* Enable start/stop output control.  */
  78 #define IXOFF   (1 << 10)       /* Enable start/stop input control.  */
  79 #ifdef  __USE_BSD
  80 #define IXANY   (1 << 11)       /* Any character will restart after stop.  */
  81 #define IMAXBEL (1 << 13)       /* Ring bell when input queue is full.  */
  82 #endif
  83
  84   /* Output modes.  */
  85   tcflag_t c_oflag;
  86 #define OPOST   (1 << 0)        /* Perform output processing.  */
  87 #ifdef  __USE_BSD
  88 #define ONLCR   (1 << 1)        /* Map NL to CR-NL on output.  */
  89 #define OXTABS  (1 << 2)        /* Expand tabs to spaces.  */
  90 #define ONOEOT  (1 << 8)        /* Discard EOT (^D) on output.  */
  91 #endif
  92
  93   /* Control modes.  */
  94   tcflag_t c_cflag;
  95 #ifdef  __USE_BSD
  96 #define CIGNORE (1 << 0)        /* Ignore these control flags.  */
  97 #endif
  98 #define CSIZE   (CS5|CS6|CS7|CS8)       /* Number of bits per byte (mask).  */
  99 #define CS5     0               /* 5 bits per byte.  */
 100 #define CS6     (1 << 8)        /* 6 bits per byte.  */
 101 #define CS7     (1 << 9)        /* 7 bits per byte.  */
 102 #define CS8     (CS6|CS7)       /* 8 bits per byte.  */
 103 #define CSTOPB  (1 << 10)       /* Two stop bits instead of one.  */
 104 #define CREAD   (1 << 11)       /* Enable receiver.  */
 105 #define PARENB  (1 << 12)       /* Parity enable.  */
 106 #define PARODD  (1 << 13)       /* Odd parity instead of even.  */
 107 #define HUPCL   (1 << 14)       /* Hang up on last close.  */
 108 #define CLOCAL  (1 << 15)       /* Ignore modem status lines.  */
 109 #ifdef  __USE_BSD
 110 #define CCTS_OFLOW      (1 << 16)       /* CTS flow control of output.  */
 111 #define CRTS_IFLOW      (1 << 17)       /* RTS flow control of input.  */
 112 #define MDMBUF          (1 << 20)       /* Carrier flow control of output.  */
 113 #endif
 114
 115   /* Local modes.  */
 116   tcflag_t c_lflag;
 117 #ifdef  __USE_BSD
 118 #define ECHOKE  (1 << 0)        /* Visual erase for KILL.  */
 119 #endif
 120 #define _ECHOE  (1 << 1)        /* Visual erase for ERASE.  */
 121 #define ECHOE   _ECHOE
 122 #define _ECHOK  (1 << 2)        /* Echo NL after KILL.  */
 123 #define ECHOK   _ECHOK
 124 #define _ECHO   (1 << 3)        /* Enable echo.  */
 125 #define ECHO    _ECHO
 126 #define _ECHONL (1 << 4)        /* Echo NL even if ECHO is off.  */
 127 #define ECHONL  _ECHONL
 128 #ifdef  __USE_BSD
 129 #define ECHOPRT (1 << 5)        /* Hardcopy visual erase.  */
 130 #define ECHOCTL (1 << 6)        /* Echo control characters as ^X.  */
 131 #endif
 132 #define _ISIG   (1 << 7)        /* Enable signals.  */
 133 #define ISIG    _ISIG
 134 #define _ICANON (1 << 8)        /* Do erase and kill processing.  */
 135 #define ICANON  _ICANON
 136 #ifdef  __USE_BSD
 137 #define ALTWERASE (1 << 9)      /* Alternate WERASE algorithm.  */
 138 #endif
 139 #define _IEXTEN (1 << 10)       /* Enable DISCARD and LNEXT.  */
 140 #define IEXTEN  _IEXTEN
 141 #define EXTPROC (1 << 11)       /* External processing.  */
 142 #define _TOSTOP (1 << 22)       /* Send SIGTTOU for background output.  */
 143 #define TOSTOP  _TOSTOP
 144 #ifdef  __USE_BSD
 145 #define FLUSHO  (1 << 23)       /* Output being flushed (state).  */
 146 #define NOKERNINFO (1 << 25)    /* Disable VSTATUS.  */
 147 #define PENDIN  (1 << 29)       /* Retype pending input (state).  */
 148 #endif
 149 #define _NOFLSH (1 << 31)       /* Disable flush after interrupt.  */
 150 #define NOFLSH  _NOFLSH
 151
 152   /* Control characters.  */
 153 #define VEOF    0               /* End-of-file character [ICANON].  */
 154 #define VEOL    1               /* End-of-line character [ICANON].  */
 155 #ifdef  __USE_BSD
 156 #define VEOL2   2               /* Second EOL character [ICANON].  */
 157 #endif
 158 #define VERASE  3               /* Erase character [ICANON].  */
 159 #ifdef  __USE_BSD
 160 #define VWERASE 4               /* Word-erase character [ICANON].  */
 161 #endif
 162 #define VKILL   5               /* Kill-line character [ICANON].  */
 163 #ifdef  __USE_BSD
 164 #define VREPRINT 6              /* Reprint-line character [ICANON].  */
 165 #endif
 166 #define VINTR   8               /* Interrupt character [ISIG].  */
 167 #define VQUIT   9               /* Quit character [ISIG].  */
 168 #define VSUSP   10              /* Suspend character [ISIG].  */
 169 #ifdef  __USE_BSD
 170 #define VDSUSP  11              /* Delayed suspend character [ISIG].  */
 171 #endif
 172 #define VSTART  12              /* Start (X-ON) character [IXON, IXOFF].  */
 173 #define VSTOP   13              /* Stop (X-OFF) character [IXON, IXOFF].  */
 174 #ifdef  __USE_BSD
 175 #define VLNEXT  14              /* Literal-next character [IEXTEN].  */
 176 #define VDISCARD 15             /* Discard character [IEXTEN].  */
 177 #endif
 178 #define VMIN    16              /* Minimum number of bytes read at once [!ICANON].  */
 179 #define VTIME   17              /* Time-out value (tenths of a second) [!ICANON].  */
 180 #ifdef  __USE_BSD
 181 #define VSTATUS 18              /* Status character [ICANON].  */
 182 #endif
 183 #define NCCS    20              /* Value duplicated in <hurd/tioctl.defs>.  */
 184   cc_t c_cc[NCCS];
 185
 186   /* Input and output baud rates.  */
 187   speed_t __ispeed, __ospeed;
 188 #define B0      0               /* Hang up.  */
 189 #define B50     50              /* 50 baud.  */
 190 #define B75     75              /* 75 baud.  */
 191 #define B110    110             /* 110 baud.  */
 192 #define B134    134             /* 134.5 baud.  */
 193 #define B150    150             /* 150 baud.  */
 194 #define B200    200             /* 200 baud.  */
 195 #define B300    300             /* 300 baud.  */
 196 #define B600    600             /* 600 baud.  */
 197 #define B1200   1200            /* 1200 baud.  */
 198 #define B1800   1800            /* 1800 baud.  */
 199 #define B2400   2400            /* 2400 baud.  */
 200 #define B4800   4800            /* 4800 baud.  */
 201 #define B9600   9600            /* 9600 baud.  */
 202 #define B19200  19200           /* 19200 baud.  */
 203 #define B38400  38400           /* 38400 baud.  */
 204 #ifdef  __USE_BSD
 205 #define EXTA    19200
 206 #define EXTB    38400
 207 #endif
 208 };
 209
 210 #define _IOT_termios /* Hurd ioctl type field.  */ \
 211   _IOT (_IOTS (tcflag_t), 4, _IOTS (cc_t), NCCS, _IOTS (speed_t), 2)
 212
 213 /* Values for the OPTIONAL_ACTIONS argument to `tcsetattr'.  */
 214 #define TCSANOW         0       /* Change immediately.  */
 215 #define TCSADRAIN       1       /* Change when pending output is written.  */
 216 #define TCSAFLUSH       2       /* Flush pending input before changing.  */
 217 #ifdef  __USE_BSD
 218 #define TCSASOFT        0x10    /* Flag: Don't alter hardware state.  */
 219 #endif
 220
 221 /* Values for the QUEUE_SELECTOR argument to `tcflush'.  */
 222 #define TCIFLUSH        1       /* Discard data received but not yet read.  */
 223 #define TCOFLUSH        2       /* Discard data written but not yet sent.  */
 224 #define TCIOFLUSH       3       /* Discard all pending data.  */
 225
 226 /* Values for the ACTION argument to `tcflow'.  */
 227 #define TCOOFF  1               /* Suspend output.  */
 228 #define TCOON   2               /* Restart suspended output.  */
 229 #define TCIOFF  3               /* Send a STOP character.  */
 230 #define TCION   4               /* Send a START character.  */