/*      $OpenBSD: lo_main.c,v 1.11 2016/01/13 13:10:26 gsoares Exp $    */
/*      $NetBSD: lo_main.c,v 1.3 1995/04/22 10:36:59 cgd Exp $  */

/*
 * Copyright (c) 1983, 1993
 *      The Regents of the University of California.  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. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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.
 */

/*
 * Print out the top ten SAILors
 *
 * -l force a long listing (print out real usernames)
 */
#include <limits.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>

#include "extern.h"
#include "pathnames.h"

const char *const title[] = {
        "Admiral", "Commodore", "Captain", "Captain",
        "Captain", "Captain", "Captain", "Commander",
        "Commander", "Lieutenant"
};

int
lo_main(void)
{
        FILE *fp;
        char sbuf[20+LOGIN_NAME_MAX];
        int n = 0, people;
        struct passwd *pass;
        struct logs log;
        struct ship *ship;

        if ((fp = fopen(_PATH_LOGFILE, "r")) == 0) {
                perror(_PATH_LOGFILE);
                exit(1);
        }
        switch (fread((char *)&people, sizeof people, 1, fp)) {
        case 0:
                printf("Nobody has sailed yet.\n");
                exit(0);
        case 1:
                break;
        default:
                perror(_PATH_LOGFILE);
                exit(1);
        }
        while (fread((char *)&log, sizeof log, 1, fp) == 1 &&
               log.l_name[0] != '\0') {
                if (longfmt && (pass = getpwuid(log.l_uid)) != NULL)
                        (void) snprintf(sbuf, sizeof sbuf, "%10.10s (%s)",
                                log.l_name, pass->pw_name);
                else
                        (void) snprintf(sbuf, sizeof sbuf, "%20.20s", log.l_name);
                ship = &scene[log.l_gamenum].ship[log.l_shipnum];
                printf("%-10s %21s of the %15s %3d points, %5.2f equiv\n",
                        title[n++], sbuf, ship->shipname, log.l_netpoints,
                        (float) log.l_netpoints / ship->specs->pts);
        }
        printf("\n%d people have played.\n", people);
        fclose(fp);
        return 0;
}