termio(7) [opendarwin man page]

TERMIO(7)                                                    Linux Programmer's Manual                                                   TERMIO(7)

NAME

       termio - System V terminal driver interface

DESCRIPTION

       termio  is  the  name of the old System V terminal driver interface.  This interface defined a termio structure used to store terminal set-
       tings, and a range of ioctl(2) operations to get and set terminal attributes.

       The termio interface is now obsolete: POSIX.1-1990 standardized a modified version of this interface, under the name termios.  The  POSIX.1
       data  structure differs slightly from the System V version, and POSIX.1 defined a suite of functions to replace the various ioctl(2) opera-
       tions that existed in System V.  (This was done because ioctl(2) was unstandardized, and its variadic third argument does not  allow  argu-
       ment type checking.)

       If  you're  looking  for  a  page called "termio", then you can probably find most of the information that you seek in either termios(3) or
       ioctl_tty(2).

SEE ALSO

       reset(1), setterm(1), stty(1), ioctl_tty(2), termios(3), tty(4)

COLOPHON

       This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

Linux                                                               2017-05-03                                                           TERMIO(7)

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

PROLOG

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

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 ter-
       minal.

RETURN VALUE

       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

       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 POSIX.1-2008, <termios.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol-
       ogy  --	Portable  Operating  System  Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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 Stan-
       dard is the referee document. The original Standard can be obtained online at http://www.unix.org/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						       2013							      TCGETSID(3P)