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save.c revision 1.6 
      1 /*	$NetBSD: save.c,v 1.6 1997/10/12 00:54:32 lukem Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1983, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "@(#)save.c	8.1 (Berkeley) 5/31/93";
     40 #else
     41 __RCSID("$NetBSD: save.c,v 1.6 1997/10/12 00:54:32 lukem Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include "mille.h"
     46 
     47 #ifndef	unctrl
     48 #include "unctrl.h"
     49 #endif
     50 
     51 # ifdef	attron
     52 #	include	<term.h>
     53 # endif	attron
     54 
     55 /*
     56  * @(#)save.c	1.2 (Berkeley) 3/28/83
     57  */
     58 
     59 typedef	struct stat	STAT;
     60 
     61 /*
     62  *	This routine saves the current game for use at a later date
     63  *	Returns FALSE if it couldn't be done.
     64  */
     65 bool
     66 save()
     67 {
     68 	char	*sp;
     69 	int	outf;
     70 	time_t	*tp;
     71 	char	buf[80];
     72 	time_t	tme;
     73 	STAT	junk;
     74 	bool	rv;
     75 
     76 	sp = NULL;
     77 	tp = &tme;
     78 	if (Fromfile && getyn(SAMEFILEPROMPT))
     79 		strcpy(buf, Fromfile);
     80 	else {
     81 over:
     82 		prompt(FILEPROMPT);
     83 		leaveok(Board, FALSE);
     84 		refresh();
     85 		sp = buf;
     86 		while ((*sp = readch()) != '\n') {
     87 			if (*sp == killchar())
     88 				goto over;
     89 			else if (*sp == erasechar()) {
     90 				if (--sp < buf)
     91 					sp = buf;
     92 				else {
     93 					addch('\b');
     94 					/*
     95 					 * if the previous char was a control
     96 					 * char, cover up two characters.
     97 					 */
     98 					if (*sp < ' ')
     99 						addch('\b');
    100 					clrtoeol();
    101 				}
    102 			}
    103 			else {
    104 				addstr(unctrl(*sp));
    105 				++sp;
    106 			}
    107 			refresh();
    108 		}
    109 		*sp = '\0';
    110 		leaveok(Board, TRUE);
    111 	}
    112 
    113 	/*
    114 	 * check for existing files, and confirm overwrite if needed
    115 	 */
    116 
    117 	if (sp == buf || (!Fromfile && stat(buf, &junk) > -1
    118 	    && getyn(OVERWRITEFILEPROMPT) == FALSE))
    119 		return FALSE;
    120 
    121 	if ((outf = creat(buf, 0644)) < 0) {
    122 		error(strerror(errno));
    123 		return FALSE;
    124 	}
    125 	mvwaddstr(Score, ERR_Y, ERR_X, buf);
    126 	wrefresh(Score);
    127 	time(tp);			/* get current time		*/
    128 	rv = varpush(outf, writev);
    129 	close(outf);
    130 	if (rv == FALSE) {
    131 		unlink(buf);
    132 	} else {
    133 		strcpy(buf, ctime(tp));
    134 		for (sp = buf; *sp != '\n'; sp++)
    135 			continue;
    136 		*sp = '\0';
    137 		wprintw(Score, " [%s]", buf);
    138 	}
    139 	wclrtoeol(Score);
    140 	wrefresh(Score);
    141 	return rv;
    142 }
    143 
    144 /*
    145  *	This does the actual restoring.  It returns TRUE if the
    146  * backup was made on exiting, in which case certain things must
    147  * be cleaned up before the game starts.
    148  */
    149 bool
    150 rest_f(file)
    151 	char	*file;
    152 {
    153 
    154 	char	*sp;
    155 	int	inf;
    156 	char	buf[80];
    157 	STAT	sbuf;
    158 
    159 	if ((inf = open(file, 0)) < 0) {
    160 		warn("%s", file);
    161 		exit(1);
    162 	}
    163 	if (fstat(inf, &sbuf) < 0) {		/* get file stats	*/
    164 		warn("%s", file);
    165 		exit(1);
    166 	}
    167 	varpush(inf, readv);
    168 	close(inf);
    169 	strcpy(buf, ctime(&sbuf.st_mtime));
    170 	for (sp = buf; *sp != '\n'; sp++)
    171 		continue;
    172 	*sp = '\0';
    173 	/*
    174 	 * initialize some necessary values
    175 	 */
    176 	(void)sprintf(Initstr, "%s [%s]\n", file, buf);
    177 	Fromfile = file;
    178 	return !On_exit;
    179 }
    180