NAME

ttyname, isatty − find name of a terminal

SYNOPSIS

char ∗ttyname(filedes)

isatty(filedes)

DESCRIPTION

ttyname returns a pointer to the null-terminated path name of the terminal device associated with file descriptor filedes.

isatty returns 1 if filedes is associated with a terminal device, 0 otherwise. 

FILES

/dev/∗

SEE ALSO

ioctl(2), ttys(5)

DIAGNOSTICS

ttyname returns a NULL pointer if filedes does not describe a terminal device in directory /dev. 

BUGS

The return value points to static data whose content is overwritten by each call. 

Sun Release 3.2  —  Last change: 22 May 1986