trusty (3) tcgetsid.3posix.gz

Provided by: manpages-posix-dev_2.16-1_all bug

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>


       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 .