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[unix-history] / usr.bin / vi / ex / ex_mkexrc.c
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1/*-
2 * Copyright (c) 1992, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35static char sccsid[] = "@(#)ex_mkexrc.c 8.10 (Berkeley) 3/22/94";
36#endif /* not lint */
37
38#include <sys/types.h>
39#include <queue.h>
40#include <sys/stat.h>
41#include <sys/time.h>
42
43#include <bitstring.h>
44#include <errno.h>
45#include <fcntl.h>
46#include <limits.h>
47#include <signal.h>
48#include <stdio.h>
49#include <stdlib.h>
50#include <string.h>
51#include <termios.h>
52#include <unistd.h>
53
54#include <db.h>
55#include <regex.h>
56#include <pathnames.h>
57
58#include "vi.h"
59#include "excmd.h"
60#include "seq.h"
61
62/*
63 * ex_mkexrc -- :mkexrc[!] [file]
64 *
65 * Create (or overwrite) a .exrc file with the current info.
66 */
67int
68ex_mkexrc(sp, ep, cmdp)
69 SCR *sp;
70 EXF *ep;
71 EXCMDARG *cmdp;
72{
73 struct stat sb;
74 FILE *fp;
75 int fd, sverrno;
76 char *fname;
77
78 switch (cmdp->argc) {
79 case 0:
80 fname = _PATH_EXRC;
81 break;
82 case 1:
83 fname = cmdp->argv[0]->bp;
84 set_alt_name(sp, fname);
85 break;
86 default:
87 abort();
88 }
89
90 if (!F_ISSET(cmdp, E_FORCE) && !stat(fname, &sb)) {
91 msgq(sp, M_ERR,
92 "%s exists, not written; use ! to override.", fname);
93 return (1);
94 }
95
96 /* Create with max permissions of rw-r--r--. */
97 if ((fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY,
98 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)) < 0) {
99 msgq(sp, M_SYSERR, fname);
100 return (1);
101 }
102
103 if ((fp = fdopen(fd, "w")) == NULL) {
104 sverrno = errno;
105 (void)close(fd);
106 errno = sverrno;
107 goto e2;
108 }
109
110 if (abbr_save(sp, fp) || ferror(fp))
111 goto e1;
112 if (map_save(sp, fp) || ferror(fp))
113 goto e1;
114 if (opts_save(sp, fp) || ferror(fp))
115 goto e1;
116#ifndef NO_DIGRAPH
117 digraph_save(sp, fd);
118#endif
119 if (fclose(fp))
120 goto e2;
121
122 msgq(sp, M_INFO, "New .exrc file: %s. ", fname);
123 return (0);
124
125e1: sverrno = errno;
126 (void)fclose(fp);
127 errno = sverrno;
128e2: msgq(sp, M_ERR, "%s: incomplete: %s", fname, strerror(errno));
129 return (1);
130}