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- /*
- * 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
- static char sccsid[] = "@(#)save.c 5.2 (Berkeley) 2/16/88";
- #endif /* not lint */
-
- #include "back.h"
-
- extern int errno;
-
- static char confirm[] = "Are you sure you want to leave now?";
- static char prompt[] = "Enter a file name: ";
- static char exist1[] = "The file '";
- static char exist2[] =
- "' already exists.\nAre you sure you want to use this file?";
- static char cantuse[] = "\nCan't use ";
- static char saved[] = "This game has been saved on the file '";
- static char type[] = "'.\nType \"backgammon ";
- static char rec[] = "\" to recover your game.\n\n";
- static char cantrec[] = "Can't recover file: ";
-
- save (n)
- register int n;
-
- {
- register int fdesc;
- register char *fs;
- char fname[50];
-
- if (n) {
- if (tflag) {
- curmove (20,0);
- clend();
- } else
- writec ('\n');
- writel (confirm);
- if (! yorn(0))
- return;
- }
- cflag = 1;
- for (;;) {
- writel (prompt);
- fs = fname;
- while ((*fs = readc()) != '\n') {
- if (*fs == tty.sg_erase) {
- if (fs > fname) {
- fs--;
- if (tflag)
- curmove (curr,curc-1);
- else
- writec (*fs);
- } else
- writec ('\007');
- continue;
- }
- writec (*fs++);
- }
- *fs = '\0';
- if ((fdesc = open(fname,2)) == -1 && errno == 2) {
- if ((fdesc = creat (fname,0700)) != -1)
- break;
- }
- if (fdesc != -1) {
- if (tflag) {
- curmove (18,0);
- clend();
- } else
- writec ('\n');
- writel (exist1);
- writel (fname);
- writel (exist2);
- cflag = 0;
- close (fdesc);
- if (yorn (0)) {
- unlink (fname);
- fdesc = creat (fname,0700);
- break;
- } else {
- cflag = 1;
- continue;
- }
- }
- writel (cantuse);
- writel (fname);
- writel (".\n");
- close (fdesc);
- cflag = 1;
- }
- write (fdesc,board,sizeof board);
- write (fdesc,off,sizeof off);
- write (fdesc,in,sizeof in);
- write (fdesc,dice,sizeof dice);
- write (fdesc,&cturn,sizeof cturn);
- write (fdesc,&dlast,sizeof dlast);
- write (fdesc,&pnum,sizeof pnum);
- write (fdesc,&rscore,sizeof rscore);
- write (fdesc,&wscore,sizeof wscore);
- write (fdesc,&gvalue,sizeof gvalue);
- write (fdesc,&raflag,sizeof raflag);
- close (fdesc);
- if (tflag)
- curmove (18,0);
- writel (saved);
- writel (fname);
- writel (type);
- writel (fname);
- writel (rec);
- if (tflag)
- clend();
- getout ();
- }
-
- recover (s)
- char *s;
-
- {
- register int i;
- int fdesc;
-
- if ((fdesc = open (s,0)) == -1)
- norec (s);
- read (fdesc,board,sizeof board);
- read (fdesc,off,sizeof off);
- read (fdesc,in,sizeof in);
- read (fdesc,dice,sizeof dice);
- read (fdesc,&cturn,sizeof cturn);
- read (fdesc,&dlast,sizeof dlast);
- read (fdesc,&pnum,sizeof pnum);
- read (fdesc,&rscore,sizeof rscore);
- read (fdesc,&wscore,sizeof wscore);
- read (fdesc,&gvalue,sizeof gvalue);
- read (fdesc,&raflag,sizeof raflag);
- close (fdesc);
- rflag = 1;
- }
-
- norec (s)
- register char *s;
-
- {
- register char *c;
-
- tflag = 0;
- writel (cantrec);
- c = s;
- while (*c != '\0')
- writec (*c++);
- getout ();
- }
-