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+/* termios type and macro definitions. 4.4 BSD/generic GNU version.
+ Copyright (C) 1993, 1994, 1996 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/* These macros are also defined in some <bits/ioctls.h> files (with
+ numerically identical values), but this serves to shut up cpp's
+ complaining. */
+#ifdef __USE_BSD
+
+#ifdef MDMBUF
+#undef MDMBUF
+#endif
+#ifdef FLUSHO
+#undef FLUSHO
+#endif
+#ifdef PENDIN
+#undef PENDIN
+#endif
+
+#endif /* __USE_BSD */
+
+#ifdef ECHO
+#undef ECHO
+#endif
+#ifdef TOSTOP
+#undef TOSTOP
+#endif
+#ifdef NOFLSH
+#undef NOFLSH
+#endif
+
+
+/* These definitions match those used by the 4.4 BSD kernel.
+ If the operating system has termios system calls or ioctls that
+ correctly implement the POSIX.1 behavior, there should be a
+ system-dependent version of this file that defines `struct termios',
+ `tcflag_t', `cc_t', `speed_t' and the `TC*' constants appropriately. */
+
+/* Type of terminal control flag masks. */
+typedef unsigned long int tcflag_t;
+
+/* Type of control characters. */
+typedef unsigned char cc_t;
+
+/* Type of baud rate specifiers. */
+typedef long int speed_t;
+
+/* Terminal control structure. */
+struct termios
+{
+ /* Input modes. */
+ tcflag_t c_iflag;
+#define IGNBRK (1 << 0) /* Ignore break condition. */
+#define BRKINT (1 << 1) /* Signal interrupt on break. */
+#define IGNPAR (1 << 2) /* Ignore characters with parity errors. */
+#define PARMRK (1 << 3) /* Mark parity and framing errors. */
+#define INPCK (1 << 4) /* Enable input parity check. */
+#define ISTRIP (1 << 5) /* Strip 8th bit off characters. */
+#define INLCR (1 << 6) /* Map NL to CR on input. */
+#define IGNCR (1 << 7) /* Ignore CR. */
+#define ICRNL (1 << 8) /* Map CR to NL on input. */
+#define IXON (1 << 9) /* Enable start/stop output control. */
+#define IXOFF (1 << 10) /* Enable start/stop input control. */
+#ifdef __USE_BSD
+#define IXANY (1 << 11) /* Any character will restart after stop. */
+#define IMAXBEL (1 << 13) /* Ring bell when input queue is full. */
+#endif
+
+ /* Output modes. */
+ tcflag_t c_oflag;
+#define OPOST (1 << 0) /* Perform output processing. */
+#ifdef __USE_BSD
+#define ONLCR (1 << 1) /* Map NL to CR-NL on output. */
+#define OXTABS (1 << 2) /* Expand tabs to spaces. */
+#define ONOEOT (1 << 8) /* Discard EOT (^D) on output. */
+#endif
+
+ /* Control modes. */
+ tcflag_t c_cflag;
+#ifdef __USE_BSD
+#define CIGNORE (1 << 0) /* Ignore these control flags. */
+#endif
+#define CSIZE (CS5|CS6|CS7|CS8) /* Number of bits per byte (mask). */
+#define CS5 0 /* 5 bits per byte. */
+#define CS6 (1 << 8) /* 6 bits per byte. */
+#define CS7 (1 << 9) /* 7 bits per byte. */
+#define CS8 (CS6|CS7) /* 8 bits per byte. */
+#define CSTOPB (1 << 10) /* Two stop bits instead of one. */
+#define CREAD (1 << 11) /* Enable receiver. */
+#define PARENB (1 << 12) /* Parity enable. */
+#define PARODD (1 << 13) /* Odd parity instead of even. */
+#define HUPCL (1 << 14) /* Hang up on last close. */
+#define CLOCAL (1 << 15) /* Ignore modem status lines. */
+#ifdef __USE_BSD
+#define CCTS_OFLOW (1 << 16) /* CTS flow control of output. */
+#define CRTS_IFLOW (1 << 17) /* RTS flow control of input. */
+#define MDMBUF (1 << 20) /* Carrier flow control of output. */
+#endif
+
+ /* Local modes. */
+ tcflag_t c_lflag;
+#ifdef __USE_BSD
+#define ECHOKE (1 << 0) /* Visual erase for KILL. */
+#endif
+#define _ECHOE (1 << 1) /* Visual erase for ERASE. */
+#define ECHOE _ECHOE
+#define _ECHOK (1 << 2) /* Echo NL after KILL. */
+#define ECHOK _ECHOK
+#define _ECHO (1 << 3) /* Enable echo. */
+#define ECHO _ECHO
+#define _ECHONL (1 << 4) /* Echo NL even if ECHO is off. */
+#define ECHONL _ECHONL
+#ifdef __USE_BSD
+#define ECHOPRT (1 << 5) /* Hardcopy visual erase. */
+#define ECHOCTL (1 << 6) /* Echo control characters as ^X. */
+#endif
+#define _ISIG (1 << 7) /* Enable signals. */
+#define ISIG _ISIG
+#define _ICANON (1 << 8) /* Do erase and kill processing. */
+#define ICANON _ICANON
+#ifdef __USE_BSD
+#define ALTWERASE (1 << 9) /* Alternate WERASE algorithm. */
+#endif
+#define _IEXTEN (1 << 10) /* Enable DISCARD and LNEXT. */
+#define IEXTEN _IEXTEN
+#define EXTPROC (1 << 11) /* External processing. */
+#define _TOSTOP (1 << 22) /* Send SIGTTOU for background output. */
+#define TOSTOP _TOSTOP
+#ifdef __USE_BSD
+#define FLUSHO (1 << 23) /* Output being flushed (state). */
+#define NOKERNINFO (1 << 25) /* Disable VSTATUS. */
+#define PENDIN (1 << 29) /* Retype pending input (state). */
+#endif
+#define _NOFLSH (1 << 31) /* Disable flush after interrupt. */
+#define NOFLSH _NOFLSH
+
+ /* Control characters. */
+#define VEOF 0 /* End-of-file character [ICANON]. */
+#define VEOL 1 /* End-of-line character [ICANON]. */
+#ifdef __USE_BSD
+#define VEOL2 2 /* Second EOL character [ICANON]. */
+#endif
+#define VERASE 3 /* Erase character [ICANON]. */
+#ifdef __USE_BSD
+#define VWERASE 4 /* Word-erase character [ICANON]. */
+#endif
+#define VKILL 5 /* Kill-line character [ICANON]. */
+#ifdef __USE_BSD
+#define VREPRINT 6 /* Reprint-line character [ICANON]. */
+#endif
+#define VINTR 8 /* Interrupt character [ISIG]. */
+#define VQUIT 9 /* Quit character [ISIG]. */
+#define VSUSP 10 /* Suspend character [ISIG]. */
+#ifdef __USE_BSD
+#define VDSUSP 11 /* Delayed suspend character [ISIG]. */
+#endif
+#define VSTART 12 /* Start (X-ON) character [IXON, IXOFF]. */
+#define VSTOP 13 /* Stop (X-OFF) character [IXON, IXOFF]. */
+#ifdef __USE_BSD
+#define VLNEXT 14 /* Literal-next character [IEXTEN]. */
+#define VDISCARD 15 /* Discard character [IEXTEN]. */
+#endif
+#define VMIN 16 /* Minimum number of bytes read at once [!ICANON]. */
+#define VTIME 17 /* Time-out value (tenths of a second) [!ICANON]. */
+#ifdef __USE_BSD
+#define VSTATUS 18 /* Status character [ICANON]. */
+#endif
+#define NCCS 20 /* Value duplicated in <hurd/tioctl.defs>. */
+ cc_t c_cc[NCCS];
+
+ /* Input and output baud rates. */
+ speed_t __ispeed, __ospeed;
+#define B0 0 /* Hang up. */
+#define B50 50 /* 50 baud. */
+#define B75 75 /* 75 baud. */
+#define B110 110 /* 110 baud. */
+#define B134 134 /* 134.5 baud. */
+#define B150 150 /* 150 baud. */
+#define B200 200 /* 200 baud. */
+#define B300 300 /* 300 baud. */
+#define B600 600 /* 600 baud. */
+#define B1200 1200 /* 1200 baud. */
+#define B1800 1800 /* 1800 baud. */
+#define B2400 2400 /* 2400 baud. */
+#define B4800 4800 /* 4800 baud. */
+#define B9600 9600 /* 9600 baud. */
+#define B19200 19200 /* 19200 baud. */
+#define B38400 38400 /* 38400 baud. */
+#ifdef __USE_BSD
+#define EXTA 19200
+#define EXTB 38400
+#endif
+};
+
+#define _IOT_termios /* Hurd ioctl type field. */ \
+ _IOT (_IOTS (tcflag_t), 4, _IOTS (cc_t), NCCS, _IOTS (speed_t), 2)
+
+/* Values for the OPTIONAL_ACTIONS argument to `tcsetattr'. */
+#define TCSANOW 0 /* Change immediately. */
+#define TCSADRAIN 1 /* Change when pending output is written. */
+#define TCSAFLUSH 2 /* Flush pending input before changing. */
+#ifdef __USE_BSD
+#define TCSASOFT 0x10 /* Flag: Don't alter hardware state. */
+#endif
+
+/* Values for the QUEUE_SELECTOR argument to `tcflush'. */
+#define TCIFLUSH 1 /* Discard data received but not yet read. */
+#define TCOFLUSH 2 /* Discard data written but not yet sent. */
+#define TCIOFLUSH 3 /* Discard all pending data. */
+
+/* Values for the ACTION argument to `tcflow'. */
+#define TCOOFF 1 /* Suspend output. */
+#define TCOON 2 /* Restart suspended output. */
+#define TCIOFF 3 /* Send a STOP character. */
+#define TCION 4 /* Send a START character. */