xref: /dragonfly/games/mille/save.c (revision 8a7bdfea)
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 
50 # ifdef	attron
51 #	include	<term.h>
52 #	define	_tty	cur_term->Nttyb
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 whether or not it could be done.
64  */
65 
66 bool
67 save(void)
68 {
69 
70 	char		*sp;
71 	int		outfd;
72 	time_t		*tp;
73 	char		buf[80];
74 	time_t		tme;
75 	STAT		junk;
76 	bool		retval;
77 
78 	sp = NULL;
79 	tp = &tme;
80 	if (Fromfile && getyn(SAMEFILEPROMPT))
81 		strcpy(buf, Fromfile);
82 	else {
83 over:
84 		prompt(FILEPROMPT);
85 		leaveok(Board, FALSE);
86 		refresh();
87 		sp = buf;
88 		while ((*sp = readch()) != '\n') {
89 			if (*sp == killchar())
90 				goto over;
91 			else if (*sp == erasechar()) {
92 				if (--sp < buf)
93 					sp = buf;
94 				else {
95 					addch('\b');
96 					/*
97 					 * if the previous char was a control
98 					 * char, cover up two characters.
99 					 */
100 					if (*sp < ' ')
101 						addch('\b');
102 					clrtoeol();
103 				}
104 			}
105 			else {
106 				addstr(unctrl(*sp));
107 				++sp;
108 			}
109 			refresh();
110 		}
111 		*sp = '\0';
112 		leaveok(Board, TRUE);
113 	}
114 
115 	/*
116 	 * check for existing files, and confirm overwrite if needed
117 	 */
118 
119 	if (sp == buf || (!Fromfile && stat(buf, &junk) > -1
120 	    && getyn(OVERWRITEFILEPROMPT) == FALSE))
121 		return FALSE;
122 
123 	if ((outfd = creat(buf, 0644)) < 0) {
124 		error(strerror(errno));
125 		return FALSE;
126 	}
127 	mvwaddstr(Score, ERR_Y, ERR_X, buf);
128 	wrefresh(Score);
129 	time(tp);			/* get current time		*/
130 	retval = varpush(outfd, writev);
131 	close(outfd);
132 	if (retval == FALSE)
133 		unlink(buf);
134 	else {
135 		strcpy(buf, ctime(tp));
136 		for (sp = buf; *sp != '\n'; sp++)
137 			continue;
138 		*sp = '\0';
139 		wprintw(Score, " [%s]", buf);
140 	}
141 	wclrtoeol(Score);
142 	wrefresh(Score);
143 	return retval;
144 }
145 
146 /*
147  *	This does the actual restoring.  It returns TRUE if the
148  * backup was made on exiting, in which case certain things must
149  * be cleaned up before the game starts.
150  */
151 bool
152 rest_f(char *file)
153 {
154 
155 	char	*sp;
156 	int		inf;
157 	char		buf[80];
158 	STAT		sbuf;
159 
160 	if ((inf = open(file, 0)) < 0) {
161 		perror(file);
162 		exit(1);
163 	}
164 	if (fstat(inf, &sbuf) < 0) {		/* get file stats	*/
165 		perror(file);
166 		exit(1);
167 	}
168 	varpush(inf, readv);
169 	close(inf);
170 	strcpy(buf, ctime(&sbuf.st_mtime));
171 	for (sp = buf; *sp != '\n'; sp++)
172 		continue;
173 	*sp = '\0';
174 	/*
175 	 * initialize some necessary values
176 	 */
177 	sprintf(Initstr, "%s [%s]\n", file, buf);
178 	Fromfile = file;
179 	return !On_exit;
180 }
181 
182