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Annotation of 43BSDReno/games/backgammon/common_source/save.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that: (1) source distributions retain this entire copyright
        !             7:  * notice and comment, and (2) distributions including binaries display
        !             8:  * the following acknowledgement:  ``This product includes software
        !             9:  * developed by the University of California, Berkeley and its contributors''
        !            10:  * in the documentation or other materials provided with the distribution
        !            11:  * and in all advertising materials mentioning features or use of this
        !            12:  * software. Neither the name of the University nor the names of its
        !            13:  * contributors may be used to endorse or promote products derived
        !            14:  * from this software without specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  */
        !            19: 
        !            20: #ifndef lint
        !            21: static char sccsid[] = "@(#)save.c     5.4 (Berkeley) 6/1/90";
        !            22: #endif /* not lint */
        !            23: 
        !            24: #include "back.h"
        !            25: 
        !            26: extern int     errno;
        !            27: 
        !            28: static char    confirm[] = "Are you sure you want to leave now?";
        !            29: static char    prompt[] = "Enter a file name:  ";
        !            30: static char    exist1[] = "The file '";
        !            31: static char    exist2[] =
        !            32:        "' already exists.\nAre you sure you want to use this file?";
        !            33: static char    cantuse[] = "\nCan't use ";
        !            34: static char    saved[] = "This game has been saved on the file '";
        !            35: static char    type[] = "'.\nType \"backgammon ";
        !            36: static char    rec[] = "\" to recover your game.\n\n";
        !            37: static char    cantrec[] = "Can't recover file:  ";
        !            38: 
        !            39: save (n)
        !            40: register int   n;
        !            41: 
        !            42: {
        !            43:        register int    fdesc;
        !            44:        register char   *fs;
        !            45:        char            fname[50];
        !            46: 
        !            47:        if (n)  {
        !            48:                if (tflag)  {
        !            49:                        curmove (20,0);
        !            50:                        clend();
        !            51:                } else
        !            52:                        writec ('\n');
        !            53:                writel (confirm);
        !            54:                if (! yorn(0))
        !            55:                        return;
        !            56:        }
        !            57:        cflag = 1;
        !            58:        for (;;)  {
        !            59:                writel (prompt);
        !            60:                fs = fname;
        !            61:                while ((*fs = readc()) != '\n')  {
        !            62:                        if (*fs == tty.sg_erase)  {
        !            63:                                if (fs > fname)  {
        !            64:                                        fs--;
        !            65:                                        if (tflag)
        !            66:                                                curmove (curr,curc-1);
        !            67:                                        else
        !            68:                                                writec (*fs);
        !            69:                                } else
        !            70:                                        writec ('\007');
        !            71:                                continue;
        !            72:                        }
        !            73:                        writec (*fs++);
        !            74:                }
        !            75:                *fs = '\0';
        !            76:                if ((fdesc = open(fname,2)) == -1 && errno == 2)  {
        !            77:                        if ((fdesc = creat (fname,0700)) != -1)
        !            78:                        break;
        !            79:                }
        !            80:                if (fdesc != -1)  {
        !            81:                        if (tflag)  {
        !            82:                                curmove (18,0);
        !            83:                                clend();
        !            84:                        } else
        !            85:                                writec ('\n');
        !            86:                        writel (exist1);
        !            87:                        writel (fname);
        !            88:                        writel (exist2);
        !            89:                        cflag = 0;
        !            90:                        close (fdesc);
        !            91:                        if (yorn (0))  {
        !            92:                                unlink (fname);
        !            93:                                fdesc = creat (fname,0700);
        !            94:                                break;
        !            95:                        } else  {
        !            96:                                cflag = 1;
        !            97:                                continue;
        !            98:                        }
        !            99:                }
        !           100:                writel (cantuse);
        !           101:                writel (fname);
        !           102:                writel (".\n");
        !           103:                close (fdesc);
        !           104:                cflag = 1;
        !           105:        }
        !           106:        write (fdesc,board,sizeof board);
        !           107:        write (fdesc,off,sizeof off);
        !           108:        write (fdesc,in,sizeof in);
        !           109:        write (fdesc,dice,sizeof dice);
        !           110:        write (fdesc,&cturn,sizeof cturn);
        !           111:        write (fdesc,&dlast,sizeof dlast);
        !           112:        write (fdesc,&pnum,sizeof pnum);
        !           113:        write (fdesc,&rscore,sizeof rscore);
        !           114:        write (fdesc,&wscore,sizeof wscore);
        !           115:        write (fdesc,&gvalue,sizeof gvalue);
        !           116:        write (fdesc,&raflag,sizeof raflag);
        !           117:        close (fdesc);
        !           118:        if (tflag)
        !           119:                curmove (18,0);
        !           120:        writel (saved);
        !           121:        writel (fname);
        !           122:        writel (type);
        !           123:        writel (fname);
        !           124:        writel (rec);
        !           125:        if (tflag)
        !           126:                clend();
        !           127:        getout ();
        !           128: }
        !           129: 
        !           130: recover (s)
        !           131: char   *s;
        !           132: 
        !           133: {
        !           134:        register int    i;
        !           135:        int             fdesc;
        !           136: 
        !           137:        if ((fdesc = open (s,0)) == -1)
        !           138:                norec (s);
        !           139:        read (fdesc,board,sizeof board);
        !           140:        read (fdesc,off,sizeof off);
        !           141:        read (fdesc,in,sizeof in);
        !           142:        read (fdesc,dice,sizeof dice);
        !           143:        read (fdesc,&cturn,sizeof cturn);
        !           144:        read (fdesc,&dlast,sizeof dlast);
        !           145:        read (fdesc,&pnum,sizeof pnum);
        !           146:        read (fdesc,&rscore,sizeof rscore);
        !           147:        read (fdesc,&wscore,sizeof wscore);
        !           148:        read (fdesc,&gvalue,sizeof gvalue);
        !           149:        read (fdesc,&raflag,sizeof raflag);
        !           150:        close (fdesc);
        !           151:        rflag = 1;
        !           152: }
        !           153: 
        !           154: norec (s)
        !           155: register char  *s;
        !           156: 
        !           157: {
        !           158:        register char   *c;
        !           159: 
        !           160:        tflag = 0;
        !           161:        writel (cantrec);
        !           162:        c = s;
        !           163:        while (*c != '\0')
        !           164:                writec (*c++);
        !           165:        getout ();
        !           166: }

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