games/mille/save.c

   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