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save.c revision 1.10 
      1 /*	$NetBSD: save.c,v 1.10 1999/09/09 17:30:20 jsm 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 1.10 1999/09/09 17:30:20 jsm Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include <time.h>
     46 
     47 #include "mille.h"
     48 
     49 #ifndef	unctrl
     50 #include "unctrl.h"
     51 #endif
     52 
     53 /*
     54  * @(#)save.c	1.2 (Berkeley) 3/28/83
     55  */
     56 
     57 typedef	struct stat	STAT;
     58 
     59 /*
     60  *	This routine saves the current game for use at a later date
     61  *	Returns FALSE if it couldn't be done.
     62  */
     63 bool
     64 save()
     65 {
     66 	char	*sp;
     67 	int	outf;
     68 	time_t	*tp;
     69 	char	buf[80];
     70 	time_t	tme;
     71 	STAT	junk;
     72 	bool	rv;
     73 
     74 	sp = NULL;
     75 	tp = &tme;
     76 	if (Fromfile && getyn(SAMEFILEPROMPT))
     77 		strcpy(buf, Fromfile);
     78 	else {
     79 over:
     80 		prompt(FILEPROMPT);
     81 		leaveok(Board, FALSE);
     82 		refresh();
     83 		sp = buf;
     84 		while ((*sp = readch()) != '\n') {
     85 			if (*sp == killchar())
     86 				goto over;
     87 			else if (*sp == erasechar()) {
     88 				if (--sp < buf)
     89 					sp = buf;
     90 				else {
     91 					addch('\b');
     92 					/*
     93 					 * if the previous char was a control
     94 					 * char, cover up two characters.
     95 					 */
     96 					if (*sp < ' ')
     97 						addch('\b');
     98 					clrtoeol();
     99 				}
    100 			}
    101 			else {
    102 				addstr(unctrl(*sp));
    103 				++sp;
    104 			}
    105 			refresh();
    106 		}
    107 		*sp = '\0';
    108 		leaveok(Board, TRUE);
    109 	}
    110 
    111 	/*
    112 	 * check for existing files, and confirm overwrite if needed
    113 	 */
    114 
    115 	if (sp == buf || (!Fromfile && stat(buf, &junk) > -1
    116 	    && getyn(OVERWRITEFILEPROMPT) == FALSE))
    117 		return FALSE;
    118 
    119 	if ((outf = creat(buf, 0644)) < 0) {
    120 		error(strerror(errno));
    121 		return FALSE;
    122 	}
    123 	mvwaddstr(Score, ERR_Y, ERR_X, buf);
    124 	wrefresh(Score);
    125 	time(tp);			/* get current time		*/
    126 	rv = varpush(outf, writev);
    127 	close(outf);
    128 	if (rv == FALSE) {
    129 		unlink(buf);
    130 	} else {
    131 		strcpy(buf, ctime(tp));
    132 		for (sp = buf; *sp != '\n'; sp++)
    133 			continue;
    134 		*sp = '\0';
    135 		wprintw(Score, " [%s]", buf);
    136 	}
    137 	wclrtoeol(Score);
    138 	wrefresh(Score);
    139 	return rv;
    140 }
    141 
    142 /*
    143  *	This does the actual restoring.  It returns TRUE if the
    144  * backup was made on exiting, in which case certain things must
    145  * be cleaned up before the game starts.
    146  */
    147 bool
    148 rest_f(file)
    149 	const char	*file;
    150 {
    151 
    152 	char	*sp;
    153 	int	inf;
    154 	char	buf[80];
    155 	STAT	sbuf;
    156 
    157 	if ((inf = open(file, O_RDONLY)) < 0) {
    158 		warn("%s", file);
    159 		exit(1);
    160 	}
    161 	if (fstat(inf, &sbuf) < 0) {		/* get file stats	*/
    162 		warn("%s", file);
    163 		exit(1);
    164 	}
    165 	varpush(inf, readv);
    166 	close(inf);
    167 	strcpy(buf, ctime(&sbuf.st_mtime));
    168 	for (sp = buf; *sp != '\n'; sp++)
    169 		continue;
    170 	*sp = '\0';
    171 	/*
    172 	 * initialize some necessary values
    173 	 */
    174 	(void)sprintf(Initstr, "%s [%s]\n", file, buf);
    175 	Fromfile = file;
    176 	return !On_exit;
    177 }
    178