termios结构体各成员的值(FreeBSD 12.0)

一、文件位置

/usr/include/sys/_termios.h

二、文件内容

/*-
 * 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.
 *
 *    @(#)termios.h    8.3 (Berkeley) 3/28/94
 * $FreeBSD: releng/12.0/sys/sys/_termios.h 326023 2017-11-20 19:43:44Z pfg $
 */

#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 */
#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 */
#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    B921600    921600
#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_ */