1 /* $NetBSD: ex_stop.c,v 1.3 2014/01/26 21:43:45 christos Exp $ */
2 /*-
3 * Copyright (c) 1993, 1994
4 * The Regents of the University of California. All rights reserved.
5 * Copyright (c) 1992, 1993, 1994, 1995, 1996
6 * Keith Bostic. All rights reserved.
7 *
8 * See the LICENSE file for redistribution information.
9 */
10
11 #include "config.h"
12
13 #include <sys/cdefs.h>
14 #if 0
15 #ifndef lint
16 static const char sccsid[] = "Id: ex_stop.c,v 10.11 2001/06/25 15:19:20 skimo Exp (Berkeley) Date: 2001/06/25 15:19:20 ";
17 #endif /* not lint */
18 #else
19 __RCSID("$NetBSD: ex_stop.c,v 1.3 2014/01/26 21:43:45 christos Exp $");
20 #endif
21
22 #include <sys/types.h>
23 #include <sys/queue.h>
24
25 #include <bitstring.h>
26 #include <errno.h>
27 #include <limits.h>
28 #include <stdio.h>
29 #include <string.h>
30 #include <unistd.h>
31
32 #include "../common/common.h"
33
34 /*
35 * ex_stop -- :stop[!]
36 * :suspend[!]
37 * Suspend execution.
38 *
39 * PUBLIC: int ex_stop __P((SCR *, EXCMD *));
40 */
41 int
ex_stop(SCR * sp,EXCMD * cmdp)42 ex_stop(SCR *sp, EXCMD *cmdp)
43 {
44 int allowed;
45
46 /* For some strange reason, the force flag turns off autowrite. */
47 if (!FL_ISSET(cmdp->iflags, E_C_FORCE) && file_aw(sp, FS_ALL))
48 return (1);
49
50 if (sp->gp->scr_suspend(sp, &allowed))
51 return (1);
52 if (!allowed)
53 ex_emsg(sp, NULL, EXM_NOSUSPEND);
54 return (0);
55 }
56