/*      $OpenBSD: main.c,v 1.26 2022/11/09 07:20:12 miod Exp $  */
/*      $NetBSD: main.c,v 1.3 1996/05/16 16:00:55 thorpej Exp $ */

/*-
 * Copyright (c) 1996 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <err.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>


#include <machine/openpromio.h>

#include "defs.h"

static  void action(char *);
static  void dump_prom(void);
static  void usage(void);

char    *path_openprom = "/dev/openprom";
int     eval = 0;
int     print_tree = 0;
int     verbose = 0;

extern  char *__progname;

int
main(int argc, char *argv[])
{
        int ch, do_stdin = 0;
        char *cp, line[BUFSIZE];
        char *optstring = "f:pv-";

        while ((ch = getopt(argc, argv, optstring)) != -1)
                switch (ch) {
                case '-':
                        do_stdin = 1;
                        break;
                case 'f':
                        path_openprom = optarg;
                        break;
                case 'p':
                        print_tree = 1;
                        break;
                case 'v':
                        verbose = 1;
                        break;
                default:
                        usage();
                }
        argc -= optind;
        argv += optind;

        if (print_tree) {
                op_tree();
                exit(0);
        }

        if (do_stdin) {
                while (fgets(line, BUFSIZE, stdin) != NULL) {
                        if (line[0] == '\n')
                                continue;
                        if ((cp = strrchr(line, '\n')) != NULL)
                                *cp = '\0';
                        action(line);
                }
                if (ferror(stdin))
                        err(++eval, "stdin");
        } else {
                if (argc == 0) {
                        dump_prom();
                        exit(eval);
                }

                while (argc) {
                        action(*argv);
                        ++argv;
                        --argc;
                }
        }

        exit(eval);
}

/*
 * Separate the keyword from the argument (if any), find the keyword in
 * the table, and call the corresponding handler function.
 */
static void
action(char *line)
{
        char *keyword, *arg, *cp;

        keyword = strdup(line);
        if (!keyword)
                errx(1, "out of memory");
        if ((arg = strrchr(keyword, '=')) != NULL)
                *arg++ = '\0';

        /*
         * The whole point of the Openprom is that one
         * isn't required to know the keywords.  With this
         * in mind, we just dump the whole thing off to
         * the generic op_handler.
         */
        if ((cp = op_handler(keyword, arg)) != NULL)
                warnx("%s", cp);
}

/*
 * Dump the contents of the prom corresponding to all known keywords.
 */
static void
dump_prom(void)
{
        /*
         * We have a special dump routine for this.
         */
        op_dump();
}

static void
usage(void)
{

        fprintf(stderr,
            "usage: %s [-pv] [-f device] [field[=value] ...]\n",
            __progname);
        exit(1);
}