1/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <errno.h>
19#include <signal.h>
20
21
22/* Send SIG to all processes in process group PGRP.
23 If PGRP is zero, send SIG to all processes in
24 the current process's process group. */
25int
26killpg (__pid_t pgrp, int sig)
27{
28 if (pgrp < 0)
29 {
30 __set_errno (EINVAL);
31 return -1;
32 }
33
34 return __kill (- pgrp, sig);
35}
36