1/*-
2 * Copyright (c) 1992, 1993, 1994
3 *	The Regents of the University of California.  All rights reserved.
4 * Copyright (c) 1992, 1993, 1994, 1995, 1996
5 *	Keith Bostic.  All rights reserved.
6 *
7 * See the LICENSE file for redistribution information.
8 */
9
10#include "config.h"
11
12#ifndef lint
13static const char sccsid[] = "$Id: ex_file.c,v 10.14 2001/06/25 15:19:16 skimo Exp $";
14#endif /* not lint */
15
16#include <sys/types.h>
17#include <sys/queue.h>
18#include <sys/time.h>
19
20#include <bitstring.h>
21#include <errno.h>
22#include <limits.h>
23#include <stdio.h>
24#include <stdlib.h>
25#include <string.h>
26
27#include "../common/common.h"
28
29/*
30 * ex_file -- :f[ile] [name]
31 *	Change the file's name and display the status line.
32 *
33 * PUBLIC: int ex_file __P((SCR *, EXCMD *));
34 */
35int
36ex_file(SCR *sp, EXCMD *cmdp)
37{
38	char *p;
39	FREF *frp;
40	char *np;
41	size_t nlen;
42
43	NEEDFILE(sp, cmdp);
44
45	switch (cmdp->argc) {
46	case 0:
47		break;
48	case 1:
49		frp = sp->frp;
50
51		/* Make sure can allocate enough space. */
52		INT2CHAR(sp, cmdp->argv[0]->bp, cmdp->argv[0]->len + 1,
53			    np, nlen);
54		if ((p = v_strdup(sp, np, nlen - 1)) == NULL)
55			return (1);
56
57		/* If already have a file name, it becomes the alternate. */
58		if (!F_ISSET(frp, FR_TMPFILE))
59			set_alt_name(sp, frp->name);
60
61		/* Free the previous name. */
62		free(frp->name);
63		frp->name = p;
64
65		/*
66		 * The file has a real name, it's no longer a temporary,
67		 * clear the temporary file flags.
68		 */
69		F_CLR(frp, FR_TMPEXIT | FR_TMPFILE);
70
71		/* Have to force a write if the file exists, next time. */
72		F_SET(frp, FR_NAMECHANGE);
73
74		/* Notify the screen. */
75		(void)sp->gp->scr_rename(sp, sp->frp->name, 1);
76		break;
77	default:
78		abort();
79	}
80	msgq_status(sp, sp->lno, MSTAT_SHOWLAST);
81	return (0);
82}
83