xref: /netbsd/games/mille/save.c (revision bf9ec67e)
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