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Linux 2.6 - man page for tcgetsid (linux section 3posix)

TCGETSID(P)			    POSIX Programmer's Manual			      TCGETSID(P)

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 orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003				      TCGETSID(P)


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