ttyname man page on UNIXv7

ttyname man page on UNIXv7

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TTYNAME(3)							    TTYNAME(3)

NAME
       ttyname, isatty, ttyslot - find name of a terminal

SYNOPSIS
       char *ttyname(fildes)

       isatty(fildes)

       ttyslot()

DESCRIPTION
       Ttyname	returns a pointer to the null-terminated path name of the ter‐
       minal device associated with file descriptor fildes.

       Isatty returns 1 if fildes is associated with a terminal device, 0 oth‐
       erwise.

       Ttyslot	returns	 the  number  of the entry in the ttys(5) file for the
       control terminal of the current process.

FILES
       /dev/*
       /etc/ttys

SEE ALSO
       ioctl(2), ttys(5)

DIAGNOSTICS
       Ttyname returns a null pointer (0) if fildes does not describe a termi‐
       nal device in directory `/dev'.

       Ttyslot returns 0 if `/etc/ttys' is inaccessible or if it cannot deter‐
       mine the control terminal.

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

								    TTYNAME(3)

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