This manual page is part of the POSIX Programmers 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.
tcgetsid - get the process group ID for the session leader for the controlling terminal
pid_t tcgetsid(int fildes);
The tcgetsid() function shall obtain the process group ID of the session for which the terminal specified by fildes is the controlling terminal.
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.
The tcgetsid() function shall fail if:
The following sections are informative.
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 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 .
|IEEE/The Open Group||TCGETSID (P)||2003|