eeprom.c revision 129590 
1/*-
2 * Copyright (c) 1996 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Jason R. Thorpe.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *        This product includes software developed by the NetBSD
19 *        Foundation, Inc. and its contributors.
20 * 4. Neither the name of The NetBSD Foundation nor the names of its
21 *    contributors may be used to endorse or promote products derived
22 *    from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 *
36 *	from: NetBSD: main.c,v 1.15 2001/02/19 23:22:42 cgd Exp
37 */
38
39#include <sys/cdefs.h>
40__FBSDID("$FreeBSD: head/usr.sbin/eeprom/eeprom.c 129590 2004-05-22 16:56:04Z marius $");
41
42#include <err.h>
43#include <stdio.h>
44#include <stdlib.h>
45#include <string.h>
46#include <sysexits.h>
47#include <unistd.h>
48
49#include "ofw_options.h"
50
51static int	action(char *);
52static void	dump_config(void);
53static void	usage(void);
54
55static void
56usage(void)
57{
58
59	fprintf(stderr,
60	    "usage: eeprom -a\n"
61	    "       eeprom [-] name[=value] ...\n");
62	exit(EX_USAGE);
63}
64
65int
66main(int argc, char *argv[])
67{
68	int do_stdin, opt;
69	int aflag, rv;
70	char *cp;
71	char line[BUFSIZ];
72
73	aflag = do_stdin = 0;
74	rv = EX_OK;
75	while ((opt = getopt(argc, argv, "-a")) != -1) {
76		switch (opt) {
77		case '-':
78			if (aflag)
79				usage();
80			do_stdin = 1;
81			break;
82		case 'a':
83			if (do_stdin)
84				usage();
85			aflag = 1;
86			break;
87		case '?':
88		default:
89			usage();
90			/* NOTREACHED */
91		}
92	}
93	argc -= optind;
94	argv += optind;
95
96	if (aflag) {
97		if (argc != 0)
98			usage();
99		dump_config();
100	} else {
101		if (do_stdin) {
102			while (fgets(line, BUFSIZ, stdin) != NULL &&
103			    rv == EX_OK) {
104				if (line[0] == '\n')
105					continue;
106				if ((cp = strrchr(line, '\n')) != NULL)
107					*cp = '\0';
108				rv = action(line);
109			}
110			if (ferror(stdin))
111				err(EX_NOINPUT, "stdin");
112		} else {
113			if (argc == 0)
114				usage();
115			while (argc && rv == EX_OK) {
116				rv = action(*argv);
117				++argv;
118				--argc;
119			}
120		}
121	}
122	return (rv);
123}
124
125static int
126action(char *line)
127{
128	int rv;
129	char *keyword, *arg;
130
131	keyword = strdup(line);
132	if (keyword == NULL)
133		err(EX_OSERR, "malloc() failed");
134	if ((arg = strrchr(keyword, '=')) != NULL)
135		*arg++ = '\0';
136	switch (rv = ofwo_action(keyword, arg)) {
137		case EX_UNAVAILABLE:
138			warnx("nothing available for '%s'.", keyword);
139			break;
140		case EX_DATAERR:
141			warnx("invalid value '%s' for '%s'.", arg, keyword);
142			break;
143	}
144	free(keyword);
145	return(rv);
146}
147
148static void
149dump_config()
150{
151
152	ofwo_dump();
153}
154