Проект OpenNet: MAN tcgetpgrp (3) Библиотечные вызовы (FreeBSD и Linux)

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tcgetpgrp (3)

tcgetpgrp (3) ( Solaris man: Библиотечные вызовы )

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tcgetpgrp (3) ( Русские man: Библиотечные вызовы )

tcgetpgrp (3) ( Linux man: Библиотечные вызовы )

tcgetpgrp (3) ( POSIX man: Библиотечные вызовы )

BSD mandoc

NAME



tcgetpgrp

 - get foreground process group ID

LIBRARY

Lb libc

SYNOPSIS

#include <sys/types.h>
#include <unistd.h>
pid_t tcgetpgrp (int fd);

DESCRIPTION

The tcgetpgrp ();
function returns the value of the process group ID of the foreground process group associated with the terminal device. If there is no foreground process group, tcgetpgrp ();
returns an invalid process ID.

ERRORS

If an error occurs, tcgetpgrp ();
returns -1 and the global variable errno is set to indicate the error, as follows:

Bq Er EBADF: The Fa fd argument is not a valid file descriptor.
Bq Er ENOTTY: The calling process does not have a controlling terminal or the underlying terminal device represented by Fa fd is not the controlling terminal.