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save.c revision 1.2 
      1 /*
      2  * Copyright (c) 1983 Regents of the University of California.
      3  * 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 
     34 #ifndef lint
     35 /*static char sccsid[] = "from: @(#)save.c	5.6 (Berkeley) 6/1/90";*/
     36 static char rcsid[] = "$Id: save.c,v 1.2 1993/08/01 18:53:56 mycroft Exp $";
     37 #endif /* not lint */
     38 
     39 #include	"mille.h"
     40 #include	<sys/types.h>
     41 #include	<sys/stat.h>
     42 #include	<string.h>
     43 #ifndef	unctrl
     44 #include	"unctrl.h"
     45 #endif
     46 
     47 # ifdef	attron
     48 #	include	<term.h>
     49 #	define	_tty	cur_term->Nttyb
     50 # endif	attron
     51 
     52 /*
     53  * @(#)save.c	1.2 (Berkeley) 3/28/83
     54  */
     55 
     56 typedef	struct stat	STAT;
     57 
     58 char	*ctime();
     59 
     60 int	read(), write();
     61 
     62 /*
     63  *	This routine saves the current game for use at a later date
     64  */
     65 
     66 save() {
     67 
     68 	extern int	errno;
     69 	reg char	*sp;
     70 	reg int		outf;
     71 	reg time_t	*tp;
     72 	char		buf[80];
     73 	time_t		tme;
     74 	STAT		junk;
     75 
     76 	tp = &tme;
     77 	if (Fromfile && getyn(SAMEFILEPROMPT))
     78 		strcpy(buf, Fromfile);
     79 	else {
     80 over:
     81 		prompt(FILEPROMPT);
     82 		leaveok(Board, FALSE);
     83 		refresh();
     84 		sp = buf;
     85 		while ((*sp = readch()) != '\n') {
     86 			if (*sp == killchar())
     87 				goto over;
     88 			else if (*sp == erasechar()) {
     89 				if (--sp < buf)
     90 					sp = buf;
     91 				else {
     92 					addch('\b');
     93 					/*
     94 					 * if the previous char was a control
     95 					 * char, cover up two characters.
     96 					 */
     97 					if (*sp < ' ')
     98 						addch('\b');
     99 					clrtoeol();
    100 				}
    101 			}
    102 			else {
    103 				addstr(unctrl(*sp));
    104 				++sp;
    105 			}
    106 			refresh();
    107 		}
    108 		*sp = '\0';
    109 		leaveok(Board, TRUE);
    110 	}
    111 
    112 	/*
    113 	 * check for existing files, and confirm overwrite if needed
    114 	 */
    115 
    116 	if (sp == buf || (!Fromfile && stat(buf, &junk) > -1
    117 	    && getyn(OVERWRITEFILEPROMPT) == FALSE))
    118 		return FALSE;
    119 
    120 	if ((outf = creat(buf, 0644)) < 0) {
    121 		error(strerror(errno));
    122 		return FALSE;
    123 	}
    124 	mvwaddstr(Score, ERR_Y, ERR_X, buf);
    125 	wrefresh(Score);
    126 	time(tp);			/* get current time		*/
    127 	strcpy(buf, ctime(tp));
    128 	for (sp = buf; *sp != '\n'; sp++)
    129 		continue;
    130 	*sp = '\0';
    131 	varpush(outf, write);
    132 	close(outf);
    133 	wprintw(Score, " [%s]", buf);
    134 	wclrtoeol(Score);
    135 	wrefresh(Score);
    136 	return TRUE;
    137 }
    138 
    139 /*
    140  *	This does the actual restoring.  It returns TRUE if the
    141  * backup was made on exiting, in which case certain things must
    142  * be cleaned up before the game starts.
    143  */
    144 rest_f(file)
    145 reg char	*file; {
    146 
    147 	reg char	*sp;
    148 	reg int		inf;
    149 	char		buf[80];
    150 	STAT		sbuf;
    151 
    152 	if ((inf = open(file, 0)) < 0) {
    153 		perror(file);
    154 		exit(1);
    155 	}
    156 	if (fstat(inf, &sbuf) < 0) {		/* get file stats	*/
    157 		perror(file);
    158 		exit(1);
    159 	}
    160 	varpush(inf, read);
    161 	close(inf);
    162 	strcpy(buf, ctime(&sbuf.st_mtime));
    163 	for (sp = buf; *sp != '\n'; sp++)
    164 		continue;
    165 	*sp = '\0';
    166 	/*
    167 	 * initialize some necessary values
    168 	 */
    169 	(void)sprintf(Initstr, "%s [%s]\n", file, buf);
    170 	Fromfile = file;
    171 	return !On_exit;
    172 }
    173 
    174