1 /* $NetBSD: ex_file.c,v 1.3 2014/01/26 21:43:45 christos Exp $ */
2 /*-
3 * Copyright (c) 1992, 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_file.c,v 10.14 2001/06/25 15:19:16 skimo Exp (Berkeley) Date: 2001/06/25 15:19:16 ";
17 #endif /* not lint */
18 #else
19 __RCSID("$NetBSD: ex_file.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 <stdlib.h>
30 #include <string.h>
31
32 #include "../common/common.h"
33
34 /*
35 * ex_file -- :f[ile] [name]
36 * Change the file's name and display the status line.
37 *
38 * PUBLIC: int ex_file __P((SCR *, EXCMD *));
39 */
40 int
ex_file(SCR * sp,EXCMD * cmdp)41 ex_file(SCR *sp, EXCMD *cmdp)
42 {
43 char *p;
44 FREF *frp;
45 const char *np;
46 size_t nlen;
47
48 NEEDFILE(sp, cmdp);
49
50 switch (cmdp->argc) {
51 case 0:
52 break;
53 case 1:
54 frp = sp->frp;
55
56 /* Make sure can allocate enough space. */
57 INT2CHAR(sp, cmdp->argv[0]->bp, cmdp->argv[0]->len + 1,
58 np, nlen);
59 if ((p = v_strdup(sp, np, nlen - 1)) == NULL)
60 return (1);
61
62 /* If already have a file name, it becomes the alternate. */
63 if (!F_ISSET(frp, FR_TMPFILE))
64 set_alt_name(sp, frp->name);
65
66 /* Free the previous name. */
67 free(frp->name);
68 frp->name = p;
69
70 /*
71 * The file has a real name, it's no longer a temporary,
72 * clear the temporary file flags.
73 */
74 F_CLR(frp, FR_TMPEXIT | FR_TMPFILE);
75
76 /* Have to force a write if the file exists, next time. */
77 F_SET(frp, FR_NAMECHANGE);
78
79 /* Notify the screen. */
80 (void)sp->gp->scr_rename(sp, sp->frp->name, 1);
81 break;
82 default:
83 abort();
84 }
85 msgq_status(sp, sp->lno, MSTAT_SHOWLAST);
86 return (0);
87 }
88