NAME

       tcgetsid - get the process group ID for the session leader for the controlling terminal

SYNOPSIS

       #include <termios.h>

       pid_t tcgetsid(int fildes);

DESCRIPTION

       The tcgetsid() function shall obtain the process group ID of the session for which the terminal specified
       by fildes is the controlling terminal.

RETURN VALUE

       Upon  successful  completion,  tcgetsid() shall return the process group ID associated with the terminal.
       Otherwise, a value of (pid_t)-1 shall be returned and errno set to indicate the error.

ERRORS

       The tcgetsid() function shall fail if:

       EBADF  The fildes argument is not a valid file descriptor.

       ENOTTY The calling process does not have a controlling terminal, or  the  file  is  not  the  controlling
              terminal.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       The Base Definitions volume of IEEE Std 1003.1-2001, <termios.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition,
       Standard  for  Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers,
       Inc and The Open Group. In the event of any discrepancy between this version and the  original  IEEE  and
       The  Open  Group  Standard,  the  original  IEEE and The Open Group Standard is the referee document. The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group                                   2003                                           TCGETSID(P)