1 /* $OpenBSD: mloop.c,v 1.8 2003/07/18 23:11:43 david Exp $ */
2 /* $NetBSD: mloop.c,v 1.5 1996/02/08 20:45:03 mycroft Exp $ */
3
4 /*
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #ifndef lint
37 #if 0
38 static char sccsid[] = "@(#)mloop.c 8.1 (Berkeley) 6/6/93";
39 #else
40 static char rcsid[] = "$OpenBSD: mloop.c,v 1.8 2003/07/18 23:11:43 david Exp $";
41 #endif
42 #endif /* not lint */
43
44 #include <sys/param.h>
45 #include <sys/types.h>
46 #include <unistd.h>
47 #include "defs.h"
48
mloop()49 mloop()
50 {
51 while (!quit) {
52 if (incmd) {
53 docmd();
54 } else if (wwcurwin->ww_state != WWS_HASPROC) {
55 if (!ISSET(wwcurwin->ww_uflags, WWU_KEEPOPEN))
56 closewin(wwcurwin);
57 setcmd(1);
58 if (wwpeekc() == escapec)
59 (void) wwgetc();
60 error("Process died.");
61 } else {
62 struct ww *w = wwcurwin;
63 char *p;
64 int n;
65
66 if (wwibp >= wwibq) {
67 wwibp = wwibq = wwib;
68 wwiomux();
69 }
70 for (p = wwibp; p < wwibq && wwmaskc(*p) != escapec;
71 p++)
72 ;
73 if ((n = p - wwibp) > 0) {
74 if (w->ww_type != WWT_PTY &&
75 ISSET(w->ww_pflags, WWP_STOPPED))
76 startwin(w);
77 #if defined(sun) && !defined(BSD)
78 /* workaround for SunOS pty bug */
79 while (--n >= 0)
80 (void) write(w->ww_pty, wwibp++, 1);
81 #else
82 (void) write(w->ww_pty, wwibp, n);
83 wwibp = p;
84 #endif
85 }
86 if (wwpeekc() == escapec) {
87 (void) wwgetc();
88 setcmd(1);
89 }
90 }
91 }
92 }
93