/*
 * Copyright (c) 1993,1995 Paul Kranenburg
 * All rights reserved.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Paul Kranenburg.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 *
 * $FreeBSD: src/sbin/ldconfig/ldconfig.c,v 1.31.2.3 2001/07/11 23:59:10 obrien Exp $
 */

#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <ctype.h>
#include <dirent.h>
#include <elf-hints.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <objformat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "ldconfig.h"

#ifdef DEBUG
/* test */
#undef _PATH_ELF_HINTS
#define _PATH_ELF_HINTS         "./ld-elf.so.hints"
#endif

#undef major
#undef minor

static void             usage(void);

int
main(int argc, char **argv)
{
        static const char *hints_file;
        int c, justread = 0, merge = 0, rescan = 0;

        if (argc > 1 && strcmp(argv[1], "-elf") == 0) {
                /* skip over legacy -elf arg */
                argc--;
                argv++;
        }

        hints_file = _PATH_ELF_HINTS;
        if (argc == 1)
                rescan = 1;
        else while((c = getopt(argc, argv, "Rf:imrsv")) != -1) {
                switch (c) {
                case 'R':
                        rescan = 1;
                        break;
                case 'f':
                        hints_file = optarg;
                        break;
                case 'i':
                        insecure = 1;
                        break;
                case 'm':
                        merge = 1;
                        break;
                case 'r':
                        justread = 1;
                        break;
                case 's':
                        /* does nothing */
                        break;
                default:
                        usage();
                        break;
                }
        }

        if (justread)
                list_elf_hints(hints_file);
        else
                update_elf_hints(hints_file, argc - optind, argv + optind,
                                 merge || rescan);
        return(0);
}

static void
usage(void)
{
        fprintf(stderr,
        "usage: ldconfig [-elf] [-Rimr] [-f hints_file] [dir | file ...]\n");
        exit(1);
}