root/sys/sys/_termios.h
/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 1988, 1989, 1993, 1994
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _SYS__TERMIOS_H_
#define _SYS__TERMIOS_H_

/*
 * Special Control Characters
 *
 * Index into c_cc[] character array.
 *
 *      Name         Subscript  Enabled by
 */
#define VEOF            0       /* ICANON */
#define VEOL            1       /* ICANON */
#if __BSD_VISIBLE
#define VEOL2           2       /* ICANON together with IEXTEN */
#endif
#define VERASE          3       /* ICANON */
#if __BSD_VISIBLE
#define VWERASE         4       /* ICANON together with IEXTEN */
#endif
#define VKILL           5       /* ICANON */
#if __BSD_VISIBLE
#define VREPRINT        6       /* ICANON together with IEXTEN */
#define VERASE2         7       /* ICANON */
#endif
/*                      7          ex-spare 1 */
#define VINTR           8       /* ISIG */
#define VQUIT           9       /* ISIG */
#define VSUSP           10      /* ISIG */
#if __BSD_VISIBLE
#define VDSUSP          11      /* ISIG together with IEXTEN */
#endif
#define VSTART          12      /* IXON, IXOFF */
#define VSTOP           13      /* IXON, IXOFF */
#if __BSD_VISIBLE
#define VLNEXT          14      /* IEXTEN */
#define VDISCARD        15      /* IEXTEN */
#endif
#define VMIN            16      /* !ICANON */
#define VTIME           17      /* !ICANON */
#if __BSD_VISIBLE
#define VSTATUS         18      /* ICANON together with IEXTEN */
/*                      19         spare 2 */
#endif
#define NCCS            20

#define _POSIX_VDISABLE 0xff

/*
 * Input flags - software input processing
 */
#define IGNBRK          0x00000001      /* ignore BREAK condition */
#define BRKINT          0x00000002      /* map BREAK to SIGINTR */
#define IGNPAR          0x00000004      /* ignore (discard) parity errors */
#define PARMRK          0x00000008      /* mark parity and framing errors */
#define INPCK           0x00000010      /* enable checking of parity errors */
#define ISTRIP          0x00000020      /* strip 8th bit off chars */
#define INLCR           0x00000040      /* map NL into CR */
#define IGNCR           0x00000080      /* ignore CR */
#define ICRNL           0x00000100      /* map CR to NL (ala CRMOD) */
#define IXON            0x00000200      /* enable output flow control */
#define IXOFF           0x00000400      /* enable input flow control */
#if __XSI_VISIBLE || __POSIX_VISIBLE >= 200809
#define IXANY           0x00000800      /* any char will restart after stop */
#endif
#if __BSD_VISIBLE
#define IMAXBEL         0x00002000      /* ring bell on input queue full */
#define IUTF8           0x00004000      /* assume input is utf-8 encoded */
#endif

/*
 * Output flags - software output processing
 */
#define OPOST           0x00000001      /* enable following output processing */
#if __XSI_VISIBLE
#define ONLCR           0x00000002      /* map NL to CR-NL (ala CRMOD) */
#endif
#if __BSD_VISIBLE
#define TABDLY          0x00000004      /* tab delay mask */
#define     TAB0            0x00000000      /* no tab delay and expansion */
#define     TAB3            0x00000004      /* expand tabs to spaces */
#define ONOEOT          0x00000008      /* discard EOT's (^D) on output) */
#endif
#if __XSI_VISIBLE
#define OCRNL           0x00000010      /* map CR to NL on output */
#define ONOCR           0x00000020      /* no CR output at column 0 */
#define ONLRET          0x00000040      /* NL performs CR function */
#endif

/*
 * Control flags - hardware control of terminal
 */
#if __BSD_VISIBLE
#define CIGNORE         0x00000001      /* ignore control flags */
#endif
#define CSIZE           0x00000300      /* character size mask */
#define     CS5             0x00000000      /* 5 bits (pseudo) */
#define     CS6             0x00000100      /* 6 bits */
#define     CS7             0x00000200      /* 7 bits */
#define     CS8             0x00000300      /* 8 bits */
#define CSTOPB          0x00000400      /* send 2 stop bits */
#define CREAD           0x00000800      /* enable receiver */
#define PARENB          0x00001000      /* parity enable */
#define PARODD          0x00002000      /* odd parity, else even */
#define HUPCL           0x00004000      /* hang up on last close */
#define CLOCAL          0x00008000      /* ignore modem status lines */
#if __BSD_VISIBLE
#define CCTS_OFLOW      0x00010000      /* CTS flow control of output */
#define CRTSCTS         (CCTS_OFLOW | CRTS_IFLOW)
#define CRTS_IFLOW      0x00020000      /* RTS flow control of input */
#define CDTR_IFLOW      0x00040000      /* DTR flow control of input */
#define CDSR_OFLOW      0x00080000      /* DSR flow control of output */
#define CCAR_OFLOW      0x00100000      /* DCD flow control of output */
#define CNO_RTSDTR      0x00200000      /* Do not assert RTS or DTR automatically */
#endif

/*
 * "Local" flags - dumping ground for other state
 *
 * Warning: some flags in this structure begin with
 * the letter "I" and look like they belong in the
 * input flag.
 */

#if __BSD_VISIBLE
#define ECHOKE          0x00000001      /* visual erase for line kill */
#endif
#define ECHOE           0x00000002      /* visually erase chars */
#define ECHOK           0x00000004      /* echo NL after line kill */
#define ECHO            0x00000008      /* enable echoing */
#define ECHONL          0x00000010      /* echo NL even if ECHO is off */
#if __BSD_VISIBLE
#define ECHOPRT         0x00000020      /* visual erase mode for hardcopy */
#define ECHOCTL         0x00000040      /* echo control chars as ^(Char) */
#endif
#define ISIG            0x00000080      /* enable signals INTR, QUIT, [D]SUSP */
#define ICANON          0x00000100      /* canonicalize input lines */
#if __BSD_VISIBLE
#define ALTWERASE       0x00000200      /* use alternate WERASE algorithm */
#endif
#define IEXTEN          0x00000400      /* enable DISCARD and LNEXT */
#define EXTPROC         0x00000800      /* external processing */
#define TOSTOP          0x00400000      /* stop background jobs from output */
#if __BSD_VISIBLE
#define FLUSHO          0x00800000      /* output being flushed (state) */
#define NOKERNINFO      0x02000000      /* no kernel output from VSTATUS */
#define PENDIN          0x20000000      /* XXX retype pending input (state) */
#endif
#define NOFLSH          0x80000000      /* don't flush after interrupt */

/*
 * Standard speeds
 */
#define B0      0
#define B50     50
#define B75     75
#define B110    110
#define B134    134
#define B150    150
#define B200    200
#define B300    300
#define B600    600
#define B1200   1200
#define B1800   1800
#define B2400   2400
#define B4800   4800
#define B9600   9600
#define B19200  19200
#define B38400  38400
#if __BSD_VISIBLE
#define B7200   7200
#define B14400  14400
#define B28800  28800
#define B57600  57600
#define B76800  76800
#define B115200 115200
#define B230400 230400
#define B460800 460800
#define B500000 500000
#define B921600 921600
#define B1000000        1000000U
#define B1500000        1500000U
#define B2000000        2000000U
#define B2500000        2500000U
#define B3000000        3000000U
#define B3500000        3500000U
#define B4000000        4000000U
#define EXTA    19200
#define EXTB    38400
#endif

typedef unsigned int    tcflag_t;
typedef unsigned char   cc_t;
typedef unsigned int    speed_t;

struct termios {
        tcflag_t        c_iflag;        /* input flags */
        tcflag_t        c_oflag;        /* output flags */
        tcflag_t        c_cflag;        /* control flags */
        tcflag_t        c_lflag;        /* local flags */
        cc_t            c_cc[NCCS];     /* control chars */
        speed_t         c_ispeed;       /* input speed */
        speed_t         c_ospeed;       /* output speed */
};

#endif /* !_SYS__TERMIOS_H_ */