sunos man page for isatty

Query: isatty

OS: sunos

Section: 3c

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

isatty(3C)						   Standard C Library Functions 						isatty(3C)

NAME
isatty - test for a terminal device
SYNOPSIS
#include <unistd.h> int isatty(int fildes);
DESCRIPTION
The isatty() function tests whether fildes, an open file descriptor, is associated with a terminal device.
RETURN VALUES
The isatty() function returns 1 if fildes is associated with a terminal; otherwise it returns 0 and may set errno to indicate the error.
ERRORS
The isatty() function may fail if: EBADF The fildes argument is not a valid open file descriptor. ENOTTY The fildes argument is not associated with a terminal.
USAGE
The isatty() function does not necessarily indicate that a human being is available for interaction via fildes. It is quite possible that non-terminal devices are connected to the communications line.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+
SEE ALSO
ttyname(3C), attributes(5), standards(5) SunOS 5.10 24 Jul 2002 isatty(3C)
Related Man Pages
isatty(3c) - sunos
isatty(3) - osx
ttyname(3) - osx
isatty(3) - v7
isatty(3) - x11r4
Similar Topics in the Unix Linux Community
How to open and arrange terminal windows automatically under CDE?
How to use terminal while keeping a program open?