xref: /original-bsd/lib/libc/compat-43/killpg.c (revision 208c3823)
1 /*
2  * Copyright (c) 1989 The Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms are permitted
6  * provided that the above copyright notice and this paragraph are
7  * duplicated in all such forms and that any documentation,
8  * advertising materials, and other materials related to such
9  * distribution and use acknowledge that the software was developed
10  * by the University of California, Berkeley.  The name of the
11  * University may not be used to endorse or promote products derived
12  * from this software without specific prior written permission.
13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16  */
17 
18 #if defined(LIBC_SCCS) && !defined(lint)
19 static char sccsid[] = "@(#)killpg.c	5.1 (Berkeley) 09/10/89";
20 #endif /* LIBC_SCCS and not lint */
21 
22 #include <sys/types.h>
23 #include <sys/errno.h>
24 
25 /*
26  * Backwards-compatible killpg().
27  */
28 killpg(pgid, sig)
29 	pid_t pgid;
30 	int sig;
31 {
32 	extern int errno;
33 
34 	if (pgid == 1) {
35 		errno = ESRCH;
36 		return (-1);
37 	}
38 	return (kill(-pgid, sig));
39 }
40