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TCGETSID(3)	       FreeBSD Library Functions Manual		   TCGETSID(3)

NAME
     tcgetsid -- get session ID	associated with	a controlling terminal

LIBRARY
     Standard C	Library	(libc, -lc)

SYNOPSIS
     #include <sys/types.h>
     #include <termios.h>

     pid_t
     tcgetsid(int fd);

DESCRIPTION
     The tcgetsid() function returns the process group ID of the session
     leader for	a controlling terminal specified by fd.

ERRORS
     If	an error occurs, tcgetsid() returns -1 and the global variable errno
     is	set to indicate	the error, as follows:

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

     [ENOTTY]		The calling process does not have a controlling	termi-
			nal or the underlying terminal device represented by
			fd is not the controlling terminal.

SEE ALSO
     getsid(2),	setsid(2), tcgetpgrp(3), tcsetsid(3)

STANDARDS
     The tcgetsid() function conforms to X/Open	Portability Guide Issue	4,
     Version 2 (``XPG4.2'').

FreeBSD	9.3			April 15, 2008			   FreeBSD 9.3

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | ERRORS | SEE ALSO | STANDARDS

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