add Berkeley specific header

[unix-history] / usr / src / games / snake / snscore / snscore.c

/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of California at Berkeley. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1980 Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)snscore.c   5.2 (Berkeley) %G%";
#endif /* not lint */

#include <stdio.h>
#include <pwd.h>
char *recfile = "/usr/games/lib/snakerawscores";
#define MAXPLAYERS 256

struct  passwd  *getpwuid();
char    *malloc();

struct  player  {
       short   uids;
       short   scores;
       char    *name;
} players[MAXPLAYERS], temp;

main()
{
       char    buf[80], cp;
       short   uid, score;
       FILE    *fd;
       int     noplayers;
       int     i, j, notsorted;
       short   whoallbest, allbest;
       char    *q;
       struct  passwd  *p;

       fd = fopen(recfile, "r");
       if (fd == NULL) {
               perror(recfile);
               exit(1);
       }
       printf("Snake players scores to date\n");
       fread(&whoallbest, sizeof(short), 1, fd);
       fread(&allbest, sizeof(short), 1, fd);
       for (uid=2;;uid++) {
               if(fread(&score, sizeof(short), 1, fd) == 0)
                       break;
               if (score > 0) {
                       if (noplayers > MAXPLAYERS) {
                               printf("too many players\n");
                               exit(2);
                       }
                       players[noplayers].uids = uid;
                       players[noplayers].scores = score;
                       p = getpwuid(uid);
                       if (p == NULL)
                               continue;
                       q = p -> pw_name;
                       players[noplayers].name = malloc(strlen(q)+1);
                       strcpy(players[noplayers].name, q);
                       noplayers++;
               }
       }

       /* bubble sort scores */
       for (notsorted=1; notsorted; ) {
               notsorted = 0;
               for (i=0; i<noplayers-1; i++)
                       if (players[i].scores < players[i+1].scores) {
                               temp = players[i];
                               players[i] = players[i+1];
                               players[i+1] = temp;
                               notsorted++;
                       }
       }

       j = 1;
       for (i=0; i<noplayers; i++) {
               printf("%d:\t$%d\t%s\n", j, players[i].scores, players[i].name);
               if (players[i].scores > players[i+1].scores)
                       j = i+2;
       }
       exit(0);
}