tcgetsid(3) BSD Library Functions Manual tcgetsid(3)
NAME
tcgetsid -- get the process group ID for the session leader for the con-
trolling terminal
SYNOPSIS
#include <termios.h>
pid_t
tcgetsid(int fildes);
DESCRIPTION
The tcgetsid() 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, tcgetsid() returns the process group ID asso-
ciated with the terminal. Otherwise, a value of (pid_t)-1 is returned
and errno is set to indicate the error.
ERRORS
The tcgetsid() 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 tcgetsid() function conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
BSD December 20, 2003 BSD
Mac OS X 10.8 - Generated Fri Aug 31 15:47:09 CDT 2012