tcgetsid(3p) — Linux manual page

TCGETSID(3P)            POSIX Programmer's Manual           TCGETSID(3P)

PROLOG         top

       This manual page is part of the POSIX Programmer's Manual.  The
       Linux implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior),
       or the interface may not be implemented on Linux.

NAME         top

       tcgetsid — get the process group ID for the session leader for
       the controlling terminal

SYNOPSIS         top

       #include <termios.h>

       pid_t tcgetsid(int fildes);

DESCRIPTION         top

       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         top

       Upon successful completion, tcgetsid() shall return the process
       group ID of the session associated with the terminal. Otherwise,
       a value of -1 shall be returned and errno set to indicate the
       error.

ERRORS         top

       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         top

       None.

APPLICATION USAGE         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       The Base Definitions volume of POSIX.1‐2017, termios.h(0p)

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 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 .

       Any typographical or formatting errors that appear in this page
       are most likely to have been introduced during the conversion of
       the source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group               2017                      TCGETSID(3P)

Pages that refer to this page: termios.h(0p)

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