NetBSD/games/robots/score.c

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/* $NetBSD: score.c,v 1.23 2009/08/12 08:30:55 dholland Exp $ */
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/*
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* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
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*
* 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
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* 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.
*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
static char sccsid[] = "@(#)score.c 8.1 (Berkeley) 5/31/93";
#else
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__RCSID("$NetBSD: score.c,v 1.23 2009/08/12 08:30:55 dholland Exp $");
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#endif
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#endif /* not lint */
#include <curses.h>
#include <err.h>
#include <fcntl.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
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#include "robots.h"
#include "pathnames.h"
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const char *Scorefile = _PATH_SCORE;
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int Max_per_uid = MAX_PER_UID;
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static SCORE Top[MAXSCORES];
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static uint32_t numscores, max_uid;
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static int cmp_sc(const void *, const void *);
static void set_name(SCORE *);
/*
* read_score:
* Read the score file in MI format
*/
static void
read_score(int inf)
{
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SCORE *scp;
if (read(inf, &max_uid, sizeof max_uid) == sizeof max_uid &&
read(inf, Top, sizeof Top) == sizeof Top) {
max_uid = ntohl(max_uid);
for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
scp->s_uid = ntohl(scp->s_uid);
scp->s_score = ntohl(scp->s_score);
scp->s_auto = ntohl(scp->s_auto);
scp->s_level = ntohl(scp->s_level);
}
}
else {
for (scp = Top; scp < &Top[MAXSCORES]; scp++)
scp->s_score = 0;
max_uid = Max_per_uid;
}
}
/*
* write_score:
* Write the score file in MI format
*/
static void
write_score(int inf)
{
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SCORE *scp;
lseek(inf, 0L, SEEK_SET);
max_uid = htonl(max_uid);
write(inf, &max_uid, sizeof max_uid);
for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
scp->s_uid = htonl(scp->s_uid);
scp->s_score = htonl(scp->s_score);
scp->s_auto = htonl(scp->s_auto);
scp->s_level = htonl(scp->s_level);
}
write(inf, Top, sizeof Top);
}
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/*
* score:
* Post the player's score, if reasonable, and then print out the
* top list.
*/
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void
score(int score_wfd)
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{
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int inf = score_wfd;
SCORE *scp;
uint32_t uid;
bool done_show = false;
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Newscore = false;
if (inf < 0)
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return;
read_score(inf);
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uid = getuid();
if (Top[MAXSCORES-1].s_score <= Score) {
numscores = 0;
for (scp = Top; scp < &Top[MAXSCORES]; scp++)
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if ((scp->s_uid == uid && ++numscores == max_uid)) {
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if (scp->s_score > Score)
break;
scp->s_score = Score;
scp->s_uid = uid;
scp->s_auto = Auto_bot;
scp->s_level = Level;
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set_name(scp);
Newscore = true;
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break;
}
if (scp == &Top[MAXSCORES]) {
Top[MAXSCORES-1].s_score = Score;
Top[MAXSCORES-1].s_uid = uid;
Top[MAXSCORES-1].s_auto = Auto_bot;
Top[MAXSCORES-1].s_level = Level;
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set_name(&Top[MAXSCORES-1]);
Newscore = true;
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}
if (Newscore)
qsort(Top, MAXSCORES, sizeof Top[0], cmp_sc);
}
if (!Newscore) {
Full_clear = false;
lseek(inf, 0, SEEK_SET);
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return;
}
else
Full_clear = true;
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move(1, 15);
printw("%5.5s %5.5s %-9.9s %-8.8s %5.5s", "Rank", "Score", "User",
" ", "Level");
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for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
if (scp->s_score == 0)
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break;
move((scp - Top) + 2, 15);
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if (!done_show && scp->s_uid == uid && scp->s_score == Score)
standout();
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printw("%5ld %5d %-8.8s %-9.9s %5d",
(long)(scp - Top) + 1, scp->s_score, scp->s_name,
scp->s_auto ? "(autobot)" : "", scp->s_level);
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if (!done_show && scp->s_uid == uid && scp->s_score == Score) {
standend();
done_show = true;
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}
}
Num_scores = scp - Top;
refresh();
if (Newscore) {
write_score(inf);
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}
lseek(inf, 0, SEEK_SET);
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}
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static void
set_name(SCORE *scp)
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{
struct passwd *pp;
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if ((pp = getpwuid(scp->s_uid)) == NULL)
strncpy(scp->s_name, "???", MAXNAME);
else
strncpy(scp->s_name, pp->pw_name, MAXNAME);
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}
/*
* cmp_sc:
* Compare two scores.
*/
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static int
cmp_sc(const void *s1, const void *s2)
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{
return ((const SCORE *)s2)->s_score - ((const SCORE *)s1)->s_score;
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}
/*
* show_score:
* Show the score list for the '-s' option.
*/
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void
show_score(void)
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{
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SCORE *scp;
int inf;
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if ((inf = open(Scorefile, O_RDONLY)) < 0) {
warn("opening `%s'", Scorefile);
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return;
}
read_score(inf);
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close(inf);
inf = 1;
printf("%5.5s %5.5s %-9.9s %-8.8s %5.5s\n", "Rank", "Score", "User",
" ", "Level");
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for (scp = Top; scp < &Top[MAXSCORES]; scp++)
if (scp->s_score > 0)
printf("%5d %5d %-8.8s %-9.9s %5d\n",
inf++, scp->s_score, scp->s_name,
scp->s_auto ? "(autobot)" : "", scp->s_level);
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}