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Annotation of 43BSD/games/snake/snscore.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  */
        !             6: 
        !             7: #ifndef lint
        !             8: static char sccsid[] = "@(#)snscore.c  5.1 (Berkeley) 5/30/85";
        !             9: #endif not lint
        !            10: 
        !            11: #include <stdio.h>
        !            12: #include <pwd.h>
        !            13: char *recfile = "/usr/games/lib/snakerawscores";
        !            14: #define MAXPLAYERS 256
        !            15: 
        !            16: struct passwd  *getpwuid();
        !            17: char   *malloc();
        !            18: 
        !            19: struct player  {
        !            20:        short   uids;
        !            21:        short   scores;
        !            22:        char    *name;
        !            23: } players[MAXPLAYERS], temp;
        !            24: 
        !            25: main()
        !            26: {
        !            27:        char    buf[80], cp;
        !            28:        short   uid, score;
        !            29:        FILE    *fd;
        !            30:        int     noplayers;
        !            31:        int     i, j, notsorted;
        !            32:        short   whoallbest, allbest;
        !            33:        char    *q;
        !            34:        struct  passwd  *p;
        !            35: 
        !            36:        fd = fopen(recfile, "r");
        !            37:        if (fd == NULL) {
        !            38:                perror(recfile);
        !            39:                exit(1);
        !            40:        }
        !            41:        printf("Snake players scores to date\n");
        !            42:        fread(&whoallbest, sizeof(short), 1, fd);
        !            43:        fread(&allbest, sizeof(short), 1, fd);
        !            44:        for (uid=2;;uid++) {
        !            45:                if(fread(&score, sizeof(short), 1, fd) == 0)
        !            46:                        break;
        !            47:                if (score > 0) {
        !            48:                        if (noplayers > MAXPLAYERS) {
        !            49:                                printf("too many players\n");
        !            50:                                exit(2);
        !            51:                        }
        !            52:                        players[noplayers].uids = uid;
        !            53:                        players[noplayers].scores = score;
        !            54:                        p = getpwuid(uid);
        !            55:                        if (p == NULL)
        !            56:                                continue;
        !            57:                        q = p -> pw_name;
        !            58:                        players[noplayers].name = malloc(strlen(q)+1);
        !            59:                        strcpy(players[noplayers].name, q);
        !            60:                        noplayers++;
        !            61:                }
        !            62:        }
        !            63: 
        !            64:        /* bubble sort scores */
        !            65:        for (notsorted=1; notsorted; ) {
        !            66:                notsorted = 0;
        !            67:                for (i=0; i<noplayers-1; i++)
        !            68:                        if (players[i].scores < players[i+1].scores) {
        !            69:                                temp = players[i];
        !            70:                                players[i] = players[i+1];
        !            71:                                players[i+1] = temp;
        !            72:                                notsorted++;
        !            73:                        }
        !            74:        }
        !            75: 
        !            76:        j = 1;
        !            77:        for (i=0; i<noplayers; i++) {
        !            78:                printf("%d:\t$%d\t%s\n", j, players[i].scores, players[i].name);
        !            79:                if (players[i].scores > players[i+1].scores)
        !            80:                        j = i+2;
        !            81:        }
        !            82:        exit(0);
        !            83: }

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