tcgetsid(3)						     Library Functions Manual						       tcgetsid(3)

NAME

       tcgetsid - Returns the session ID of the terminal

LIBRARY

       Standard C Library (libc.so, libc.a)

SYNOPSIS

       #include <termios.h>

       pid_t tcgetsid(	    pid_t fildes);

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       tcgetsid():  XSH4.2

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

PARAMETERS

       Specifies a terminal.

DESCRIPTION

       The  tcgetsid routine is a part of the general terminal interface.  This routine obtains the session ID of the terminal as specified by the
       fildes parameter.

RETURN VALUE

       On success, the tcgetsid returns the session ID that is associated with the terminal specified.	If the session ID of the  terminal  cannot
       be obtained, a value of (pid_t)-1 is returned and errno is set to indicate error.

ERRORS

       The  tcgetsid()	function  sets	errno to the specified values for the following conditions: The descriptor fildes is not associated with a
       controlling terminal.  The descriptor fildes is not valid.  The file associated with fildes is not a terminal.

	      [Tru64 UNIX]  The descriptor fildes is not associated with a character special device or the specified request does not apply to the
	      kind of object that fildes references.

RELATED INFORMATION

       Standards: standards(5) delim off

																       tcgetsid(3)