tcgetsid(3) BSD Library Functions Manual tcgetsid(3)

NAME
     ttccggeettssiidd - get the process group ID for the session leader for the con-
     trolling terminal

SYNOPSIS
     ##iinncclluuddee <>

     pidt
     ttccggeettssiidd(int fildes);

DESCRIPTION
     The ttccggeettssiidd() function obtains the process group ID of the session for
     which the terminal specified by fildes is the controlling terminal.

RETURN VALUES
     Upon successful completion, ttccggeettssiidd() returns the process group ID asso-
     ciated with the terminal.  Otherwise, a value of (pidt)-1 is returned
     and errno is set to indicate the error.

EERRRROORRSS
     The ttccggeettssiidd() function will fail if:

     [EACCES]           The fildes argument is not associated with a control-
                        ling terminal.

     [EBADF]            The fildes argument is not a valid file descriptor.

     [ENOTTY]           The file associated with fildes is not a terminal.

SEE ALSO
     getsid(2), setpgid(2), setsid(2), tcgetpgrp(3), termios(4)

STANDARDS
     The ttccggeettssiidd() function conforms to IEEE Std 1003.1-2001 (``POSIX.1'').

BSD                            December 20, 2003                           BSD