tcgetpgrp

Syntax

#include <termios.h> int tcgetpgrp (int fd);

Description

This function returns the value of the process group ID for the foreground process associated with the terminal. The file descriptor fd must be connected to the terminal, otherwise the function will fail.

Return Value

If fd is connected to the terminal, the function returns the process group ID, which is currently identical to the value returned by getpgrp() (see section getpgrp). Otherwise, it returns -1 and sets errno to ENOTTY.

Portability

ANSI/ISO C	No
POSIX	1003.2-1992; 1003.1-2001