termios.h(3HEAD)						      Headers							  termios.h(3HEAD)

NAME

       termios.h, termios - define values for termios

SYNOPSIS

       #include <termios.h>

DESCRIPTION

       The  <termios.h> header contains the definitions used by the terminal I/O interfaces. See termios(3C) and termio(7I) for an overview of the
       terminal interface.

   The termios Structure
       The following data types are defined through typedef:

       cc_t	       used for terminal special characters

       speed_t	       used for terminal baud rates

       tcflag_t        used for terminal modes

       The above types are all unsigned integer types.

       The implementation supports one or more programming environments in which the widths of cc_t, speed_t, and tcflag_t are no greater than the
       width of type long. The names of these programming environments can be obtained using the confstr(3C) function or the getconf(1) utility.

       The termios structure is defined and includes the following members:

       tcflag_t c_iflag        /* input modes */
       tcflag_t c_oflag        /* output modes */
       tcflag_t c_cflag        /* control modes */
       tcflag_t c_lflag        /* local modes */
       cc_t	c_cc[NCCS]     /* control characters */

       A definition is provided for:

       NCCS	       size of the array c_cc for control characters

       The following subscript names for the array c_cc are defined:

       Subscript Usage	    Subscript Usage	   Description

       Canonical Mode	    Non-Canonical Mode
       VEOF					   EOF character
       VEOL					   EOL character
       VERASE					   ERASE character
       VINTR		    VINTR		   INTR character
       VKILL					   KILL character
			    VMIN		   MIN value
       VQUIT		    VQUIT		   QUIT character
       VSTART		    VSTART		   START character
       VSTOP		    VSTOP		   STOP character
       VSUSP		    VSUSP		   SUSP character

			    VTIME		   TIME value

       The  subscript  values  are  unique,  except  that  the VMIN and VTIME subscripts can have the same values as the VEOF and VEOL subscripts,
       respectively.

       The header file provides the flags described below.

   Input Modes
       The c_iflag field describes the basic terminal input control:

       BRKINT	       Signal interrupt on break.

       ICRNL	       Map CR to NL on input.

       IGNBRK	       Ignore break condition.

       IGNCR	       Ignore CR.

       IGNPAR	       Ignore characters with parity errors.

       INLCR	       Map NL to CR on input.

       INPCK	       Enable input parity check.

       ISTRIP	       Strip character.

       IXANY	       Enable any character to restart output.

       IXOFF	       Enable start/stop input control.

       IXON	       Enable start/stop output control.

       PARMRK	       Mark parity errors.

   Output Modes
       The c_oflag field specifies the system treatment of output:

       OPOST	       Post-process output.

       ONLCR	       Map NL to CR-NL on output.

       OCRNL	       Map CR to NL on output.

       ONOCR	       No CR output at column 0.

       ONLRET	       NL performs CR function.

       OFILL	       Use fill characters for delay.

       NLDLY	       Select newline delays:

		       NL0	newline type 0

		       NL1	newline type 1

       CRDLY	       Select carriage-return delays:

		       CR0	carriage-return delay type 0

		       CR1	carriage-return delay type 1

		       CR2	carriage-return delay type 2

		       CR3	carriage-return delay type 3

       TABDLY	       Select horizontal-tab delays:

		       TAB0	horizontal-tab delay type 0

		       TAB1	horizontal-tab delay type 1

		       TAB2	horizontal-tab delay type 2

		       TAB3	expand tabs to spaces

       BSDLY	       Select backspace delays:

		       BS0	backspace-delay type 0

		       BS1	backspace-delay type 1

       VTDLY	       Select vertical-tab delays:

		       VT0	vertical-tab delay type 0

		       VT1	vertical-tab delay type 1

       FFDLY	       Select form-feed delays:

		       FF0	form-feed delay type 0

		       FF1	form-feed delay type 1

   Baud Rate Selection
       The input and output baud rates are stored in the termios structure. These are the valid values for objects of type speed_ t. The following
       values are defined, but not all baud rates need be supported by the underlying hardware.

       B0	       Hang up

       B50	       50 baud

       B75	       75 baud

       B110	       110 baud

       B134	       134.5 baud

       B150	       150 baud

       B200	       200 baud

       B300	       300 baud

       B600	       600 baud

       B1200	       1 200 baud

       B1800	       1 800 baud

       B2400	       2 400 baud

       B4800	       4 800 baud

       B9600	       9 600 baud

       B19200	       19 200 baud

       B38400	       38 400 baud

   Control Modes
       The  c_cflag  field describes the hardware control of the terminal; not all values specified are required to be supported by the underlying
       hardware:

       CSIZE	       Character size:

		       CS5	5 bits

		       CS6	6 bits

		       CS7	7 bits

		       CS8	8 bits

       CSTOPB	       Send two stop bits, else one.

       CREAD	       Enable receiver.

       PARENB	       Parity enable.

       PARODD	       Odd parity, else even.

       HUPCL	       Hang up on last close.

       CLOCAL	       Ignore modem status lines.

       The implementation supports the functionality associated with the symbols CS7, CS8, CSTOPB, PARODD, and PARENB.

   Local Modes
       The c_lflag field of the argument structure is used to control various terminal functions:

       ECHO	       Enable echo.

       ECHOE	       Echo erase character as error-correcting backspace.

       ECHOK	       Echo KILL.

       ECHONL	       Echo NL.

       ICANON	       Canonical input (erase and kill processing).

       IEXTEN	       Enable extended input character processing.

       ISIG	       Enable signals.

       NOFLSH	       Disable flush after interrupt or quit.

       TOSTOP	       Send SIGTTOU for background output.

   Attribute Selection
       The following symbolic constants for use with tcsetattr() are defined:

       TCSANOW	       Change attributes immediately.

       TCSADRAIN       Change attributes when output has drained.

       TCSAFLUSH       Change attributes when output has drained; also flush pending input.

   Line Control
       The following symbolic constants for use with tcflush() are defined:

       TCIFLUSH        Flush pending input.

       TCIOFLUSH       Flush both pending input and untransmitted output.

       TCOFLUSH        Flush untransmitted output.

       The following symbolic constants for use with tcflow() are defined:

       TCIOFF	       Transmit a STOP character, intended to suspend input data.

       TCION	       Transmit a START character, intended to restart input data.

       TCOOFF	       Suspend output.

       TCOON	       Restart output.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       getconf(1), cfgetispeed(3C), cfsetispeed(3C), confstr(3C),  tcdrain(3C),  tcflow(3C),  tcflush(3C),  tcgetattr(3C),  tcgetsid(3C),  tcsend-
       break(3C), tcsetattr(3C), attributes(5), standards(5)

SunOS 5.10							    10 Sep 2004 						  termios.h(3HEAD)