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Annotation of 43BSDTahoe/games/backgammon/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 the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #ifndef lint
        !            19: static char sccsid[] = "@(#)save.c     5.3 (Berkeley) 6/18/88";
        !            20: #endif /* not lint */
        !            21: 
        !            22: #include "back.h"
        !            23: 
        !            24: extern int     errno;
        !            25: 
        !            26: static char    confirm[] = "Are you sure you want to leave now?";
        !            27: static char    prompt[] = "Enter a file name:  ";
        !            28: static char    exist1[] = "The file '";
        !            29: static char    exist2[] =
        !            30:        "' already exists.\nAre you sure you want to use this file?";
        !            31: static char    cantuse[] = "\nCan't use ";
        !            32: static char    saved[] = "This game has been saved on the file '";
        !            33: static char    type[] = "'.\nType \"backgammon ";
        !            34: static char    rec[] = "\" to recover your game.\n\n";
        !            35: static char    cantrec[] = "Can't recover file:  ";
        !            36: 
        !            37: save (n)
        !            38: register int   n;
        !            39: 
        !            40: {
        !            41:        register int    fdesc;
        !            42:        register char   *fs;
        !            43:        char            fname[50];
        !            44: 
        !            45:        if (n)  {
        !            46:                if (tflag)  {
        !            47:                        curmove (20,0);
        !            48:                        clend();
        !            49:                } else
        !            50:                        writec ('\n');
        !            51:                writel (confirm);
        !            52:                if (! yorn(0))
        !            53:                        return;
        !            54:        }
        !            55:        cflag = 1;
        !            56:        for (;;)  {
        !            57:                writel (prompt);
        !            58:                fs = fname;
        !            59:                while ((*fs = readc()) != '\n')  {
        !            60:                        if (*fs == tty.sg_erase)  {
        !            61:                                if (fs > fname)  {
        !            62:                                        fs--;
        !            63:                                        if (tflag)
        !            64:                                                curmove (curr,curc-1);
        !            65:                                        else
        !            66:                                                writec (*fs);
        !            67:                                } else
        !            68:                                        writec ('\007');
        !            69:                                continue;
        !            70:                        }
        !            71:                        writec (*fs++);
        !            72:                }
        !            73:                *fs = '\0';
        !            74:                if ((fdesc = open(fname,2)) == -1 && errno == 2)  {
        !            75:                        if ((fdesc = creat (fname,0700)) != -1)
        !            76:                        break;
        !            77:                }
        !            78:                if (fdesc != -1)  {
        !            79:                        if (tflag)  {
        !            80:                                curmove (18,0);
        !            81:                                clend();
        !            82:                        } else
        !            83:                                writec ('\n');
        !            84:                        writel (exist1);
        !            85:                        writel (fname);
        !            86:                        writel (exist2);
        !            87:                        cflag = 0;
        !            88:                        close (fdesc);
        !            89:                        if (yorn (0))  {
        !            90:                                unlink (fname);
        !            91:                                fdesc = creat (fname,0700);
        !            92:                                break;
        !            93:                        } else  {
        !            94:                                cflag = 1;
        !            95:                                continue;
        !            96:                        }
        !            97:                }
        !            98:                writel (cantuse);
        !            99:                writel (fname);
        !           100:                writel (".\n");
        !           101:                close (fdesc);
        !           102:                cflag = 1;
        !           103:        }
        !           104:        write (fdesc,board,sizeof board);
        !           105:        write (fdesc,off,sizeof off);
        !           106:        write (fdesc,in,sizeof in);
        !           107:        write (fdesc,dice,sizeof dice);
        !           108:        write (fdesc,&cturn,sizeof cturn);
        !           109:        write (fdesc,&dlast,sizeof dlast);
        !           110:        write (fdesc,&pnum,sizeof pnum);
        !           111:        write (fdesc,&rscore,sizeof rscore);
        !           112:        write (fdesc,&wscore,sizeof wscore);
        !           113:        write (fdesc,&gvalue,sizeof gvalue);
        !           114:        write (fdesc,&raflag,sizeof raflag);
        !           115:        close (fdesc);
        !           116:        if (tflag)
        !           117:                curmove (18,0);
        !           118:        writel (saved);
        !           119:        writel (fname);
        !           120:        writel (type);
        !           121:        writel (fname);
        !           122:        writel (rec);
        !           123:        if (tflag)
        !           124:                clend();
        !           125:        getout ();
        !           126: }
        !           127: 
        !           128: recover (s)
        !           129: char   *s;
        !           130: 
        !           131: {
        !           132:        register int    i;
        !           133:        int             fdesc;
        !           134: 
        !           135:        if ((fdesc = open (s,0)) == -1)
        !           136:                norec (s);
        !           137:        read (fdesc,board,sizeof board);
        !           138:        read (fdesc,off,sizeof off);
        !           139:        read (fdesc,in,sizeof in);
        !           140:        read (fdesc,dice,sizeof dice);
        !           141:        read (fdesc,&cturn,sizeof cturn);
        !           142:        read (fdesc,&dlast,sizeof dlast);
        !           143:        read (fdesc,&pnum,sizeof pnum);
        !           144:        read (fdesc,&rscore,sizeof rscore);
        !           145:        read (fdesc,&wscore,sizeof wscore);
        !           146:        read (fdesc,&gvalue,sizeof gvalue);
        !           147:        read (fdesc,&raflag,sizeof raflag);
        !           148:        close (fdesc);
        !           149:        rflag = 1;
        !           150: }
        !           151: 
        !           152: norec (s)
        !           153: register char  *s;
        !           154: 
        !           155: {
        !           156:        register char   *c;
        !           157: 
        !           158:        tflag = 0;
        !           159:        writel (cantrec);
        !           160:        c = s;
        !           161:        while (*c != '\0')
        !           162:                writec (*c++);
        !           163:        getout ();
        !           164: }

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