xref: /dragonfly/games/mille/save.c (revision 956939d5)
1 /*
2  * Copyright (c) 1983, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * @(#)save.c	8.1 (Berkeley) 5/31/93
34  * $FreeBSD: src/games/mille/save.c,v 1.6 1999/12/12 06:17:24 billf Exp $
35  * $DragonFly: src/games/mille/save.c,v 1.5 2006/08/27 17:17:23 pavalos Exp $
36  */
37 
38 #include <sys/types.h>
39 #include <sys/stat.h>
40 #include <sys/uio.h>
41 #include <errno.h>
42 #include <fcntl.h>
43 #include <string.h>
44 #include <termios.h>
45 #include <unistd.h>
46 #include "mille.h"
47 
48 #include <unctrl.h>
49 #include <term.h>
50 
51 /*
52  * @(#)save.c	1.2 (Berkeley) 3/28/83
53  */
54 
55 typedef	struct stat	STAT;
56 
57 /*
58  *	This routine saves the current game for use at a later date
59  *	Returns whether or not it could be done.
60  */
61 
62 bool
63 save(void)
64 {
65 
66 	char		*sp;
67 	int		outfd;
68 	time_t		*tp;
69 	char		buf[80];
70 	time_t		tme;
71 	STAT		junk;
72 	bool		retval;
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 ((outfd = 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 	retval = varpush(outfd, writev);
127 	close(outfd);
128 	if (retval == 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 retval;
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(char *file)
149 {
150 
151 	char	*sp;
152 	int		inf;
153 	char		buf[80];
154 	STAT		sbuf;
155 
156 	if ((inf = open(file, 0)) < 0) {
157 		perror(file);
158 		exit(1);
159 	}
160 	if (fstat(inf, &sbuf) < 0) {		/* get file stats	*/
161 		perror(file);
162 		exit(1);
163 	}
164 	varpush(inf, readv);
165 	close(inf);
166 	strcpy(buf, ctime(&sbuf.st_mtime));
167 	for (sp = buf; *sp != '\n'; sp++)
168 		continue;
169 	*sp = '\0';
170 	/*
171 	 * initialize some necessary values
172 	 */
173 	sprintf(Initstr, "%s [%s]\n", file, buf);
174 	Fromfile = file;
175 	return !On_exit;
176 }
177 
178