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      1 /*	$NetBSD: save.c,v 1.16 2011/08/26 09:01:07 tron 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. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 #if 0
     35 static char sccsid[] = "@(#)save.c	8.1 (Berkeley) 5/31/93";
     36 #else
     37 __RCSID("$NetBSD: save.c,v 1.16 2011/08/26 09:01:07 tron Exp $");
     38 #endif
     39 #endif /* not lint */
     40 
     41 #include <time.h>
     42 
     43 #include "mille.h"
     44 
     45 #ifndef	unctrl
     46 #include "unctrl.h"
     47 #endif
     48 
     49 /*
     50  * @(#)save.c	1.2 (Berkeley) 3/28/83
     51  */
     52 
     53 typedef	struct stat	STAT;
     54 
     55 /*
     56  *	This routine saves the current game for use at a later date
     57  *	Returns FALSE if it couldn't be done.
     58  */
     59 bool
     60 save(void)
     61 {
     62 	char	*sp;
     63 	int	outfd;
     64 	time_t	*tp;
     65 	char	buf[80];
     66 	time_t	tme;
     67 	STAT	junk;
     68 	bool	rv;
     69 
     70 	sp = NULL;
     71 	tp = &tme;
     72 	if (Fromfile && getyn(SAMEFILEPROMPT))
     73 		strcpy(buf, Fromfile);
     74 	else {
     75 over:
     76 		prompt(FILEPROMPT);
     77 		leaveok(Board, FALSE);
     78 		refresh();
     79 		sp = buf;
     80 		while ((*sp = readch()) != '\n') {
     81 			if (*sp == killchar())
     82 				goto over;
     83 			else if (*sp == erasechar()) {
     84 				if (--sp < buf)
     85 					sp = buf;
     86 				else {
     87 					addch('\b');
     88 					/*
     89 					 * if the previous char was a control
     90 					 * char, cover up two characters.
     91 					 */
     92 					if (*sp < ' ')
     93 						addch('\b');
     94 					clrtoeol();
     95 				}
     96 			}
     97 			else {
     98 				addstr(unctrl(*sp));
     99 				++sp;
    100 			}
    101 			refresh();
    102 		}
    103 		*sp = '\0';
    104 		leaveok(Board, TRUE);
    105 	}
    106 
    107 	/*
    108 	 * check for existing files, and confirm overwrite if needed
    109 	 */
    110 
    111 	if (sp == buf || (!Fromfile && stat(buf, &junk) > -1
    112 	    && getyn(OVERWRITEFILEPROMPT) == FALSE))
    113 		return FALSE;
    114 
    115 	if ((outfd = creat(buf, 0644)) < 0) {
    116 		error("%s", strerror(errno));
    117 		return FALSE;
    118 	}
    119 	mvwaddstr(Score, ERR_Y, ERR_X, buf);
    120 	wrefresh(Score);
    121 	time(tp);			/* get current time		*/
    122 	rv = varpush(outfd, writev);
    123 	close(outfd);
    124 	if (rv == FALSE) {
    125 		unlink(buf);
    126 	} else {
    127 		char *p;
    128 		if ((p = ctime(tp)) == NULL)
    129 			strcpy(buf, "?");
    130 		else
    131 			strcpy(buf, p);
    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(const char *file)
    149 {
    150 
    151 	char	*sp, *p;
    152 	int	inf;
    153 	char	buf[80];
    154 	STAT	sbuf;
    155 
    156 	if ((inf = open(file, O_RDONLY)) < 0) {
    157 		warn("%s", file);
    158 		exit(1);
    159 	}
    160 	if (fstat(inf, &sbuf) < 0) {		/* get file stats	*/
    161 		warn("%s", file);
    162 		exit(1);
    163 	}
    164 	varpush(inf, readv);
    165 	close(inf);
    166 	if ((p = ctime(&sbuf.st_mtime)) == NULL)
    167 		strcpy(buf, "?");
    168 	else
    169 		strcpy(buf, p);
    170 	for (sp = buf; *sp != '\n'; sp++)
    171 		continue;
    172 	*sp = '\0';
    173 	/*
    174 	 * initialize some necessary values
    175 	 */
    176 	(void)snprintf(Initstr, INITSTR_SIZE, "%s [%s]\n", file, buf);
    177 	Fromfile = file;
    178 	return !On_exit;
    179 }
    180