1/*	$OpenBSD: ex_file.c,v 1.9 2016/05/27 09:18:12 martijn Exp $	*/
2
3/*-
4 * Copyright (c) 1992, 1993, 1994
5 *	The Regents of the University of California.  All rights reserved.
6 * Copyright (c) 1992, 1993, 1994, 1995, 1996
7 *	Keith Bostic.  All rights reserved.
8 *
9 * See the LICENSE file for redistribution information.
10 */
11
12#include "config.h"
13
14#include <sys/types.h>
15#include <sys/queue.h>
16
17#include <bitstring.h>
18#include <errno.h>
19#include <limits.h>
20#include <stdio.h>
21#include <stdlib.h>
22#include <string.h>
23
24#include "../common/common.h"
25
26/*
27 * ex_file -- :f[ile] [name]
28 *	Change the file's name and display the status line.
29 *
30 * PUBLIC: int ex_file(SCR *, EXCMD *);
31 */
32int
33ex_file(SCR *sp, EXCMD *cmdp)
34{
35	CHAR_T *p;
36	FREF *frp;
37
38	NEEDFILE(sp, cmdp);
39
40	switch (cmdp->argc) {
41	case 0:
42		break;
43	case 1:
44		frp = sp->frp;
45
46		/* Make sure can allocate enough space. */
47		if ((p = v_strdup(sp,
48		    cmdp->argv[0]->bp, cmdp->argv[0]->len)) == NULL)
49			return (1);
50
51		/* If already have a file name, it becomes the alternate. */
52		if (!F_ISSET(frp, FR_TMPFILE))
53			set_alt_name(sp, frp->name);
54
55		/* Free the previous name. */
56		free(frp->name);
57		frp->name = p;
58
59		/*
60		 * The file has a real name, it's no longer a temporary,
61		 * clear the temporary file flags.
62		 */
63		F_CLR(frp, FR_TMPEXIT | FR_TMPFILE);
64
65		/* Have to force a write if the file exists, next time. */
66		F_SET(frp, FR_NAMECHANGE);
67
68		/* Notify the screen. */
69		(void)sp->gp->scr_rename(sp, sp->frp->name, 1);
70		break;
71	default:
72		abort();
73	}
74	msgq_status(sp, sp->lno, MSTAT_SHOWLAST);
75	return (0);
76}
77