2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Edward Wang at The University of California, Berkeley.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#)wwspawn.c 8.1 (Berkeley) 6/6/93
37 * $FreeBSD: src/usr.bin/window/wwspawn.c,v 1.4.2.1 2001/05/17 09:45:02 obrien Exp $
38 * $DragonFly: src/usr.bin/window/wwspawn.c,v 1.2 2003/06/17 04:29:34 dillon Exp $
47 * There is a dead lock with vfork and closing of pseudo-ports.
48 * So we have to be sneaky about error reporting.
50 wwspawn(wp
, file
, argv
)
51 register struct ww
*wp
;
60 s
= sigblock(sigmask(SIGCHLD
));
61 switch (pid
= vfork()) {
67 if (wwenviron(wp
) >= 0)
77 wp
->ww_state
= WWS_HASPROC
;
82 if (wp
->ww_socket
>= 0) {
83 (void) close(wp
->ww_socket
);