tcgetsid(3) [freebsd man page]

TCGETSID(3)						   BSD 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 terminal 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'').

BSD
								  April 15, 2008							       BSD

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

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 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 associated 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 controlling 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