Number of bytes in terminal input queue w/o blocking and consuming? Post: 302281891

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LEARN ABOUT SUNOS

tcgetattr

tcgetattr(3C)						   Standard C Library Functions 					     tcgetattr(3C)

NAME

       tcgetattr - get the parameters associated with the terminal

SYNOPSIS

       #include <termios.h>

       int tcgetattr(int fildes, struct termios *termios_p);

DESCRIPTION

       The  tcgetattr()  function  gets the parameters associated with the terminal referred to by fildes and stores them in the termios structure
       (see termio(7I)) referenced by termios_p. The fildes argument is an open file descriptor associated with a terminal.

       The termios_p argument is a pointer to a termios structure.

       The tcgetattr() operation is allowed from any process.

       If the terminal device supports different input and output baud rates, the baud rates stored in the termios  structure  returned  by  tcge-
       tattr()	reflect  the actual baud rates, even if they are equal. If differing baud rates are not supported, the rate returned as the output
       baud rate is the actual baud rate. If the terminal device does not support split baud rates, the input baud  rate  stored  in  the  termios
       structure will be 0.

RETURN VALUES

       Upon successful completion, 0 is returned. Otherwise, -1 is returned and errno is set to indicate the error.

ERRORS

       The tcgetattr() function will fail if:

       EBADF	       The fildes argument is not a valid file descriptor.

       ENOTTY	       The file associated with fildes is not a terminal.

ATTRIBUTES

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

       +-----------------------------+-------------------------------+
       |      ATTRIBUTE TYPE	     |	     ATTRIBUTE VALUE	     |
       +-----------------------------+-------------------------------+
       |Interface Stability	     |Standard			     |
       +-----------------------------+-------------------------------+
       |MT-Level		     |MT-Safe, and Async-Signal-Safe |
       +-----------------------------+-------------------------------+

SEE ALSO

       tcsetattr(3C), attributes(5), standards(5), termio(7I)

SunOS 5.10							    14 Aug 2002 						     tcgetattr(3C)

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