usr.sbin/eeprom/eeprom.c

   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("$FreeBSD$");
  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
  51 static int      action(char *);
  52 static void     dump_config(void);
  53 static void     usage(void);
  54
  55 static void
  56 usage(void)
  57 {
  58
  59         fprintf(stderr,
  60             "usage: eeprom -a\n"
  61             "       eeprom [-] name[=value] ...\n");
  62         exit(EX_USAGE);
  63 }
  64
  65 int
  66 main(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
 125 static int
 126 action(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
 148 static void
 149 dump_config()
 150 {
 151
 152         ofwo_dump();
 153 }