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. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * @(#)save.c   8.1 (Berkeley) 5/31/93
  30  * $FreeBSD: src/games/mille/save.c,v 1.6 1999/12/12 06:17:24 billf Exp $
  31  * $DragonFly: src/games/mille/save.c,v 1.5 2006/08/27 17:17:23 pavalos Exp $
  32  */
  33
  34 #include <sys/types.h>
  35 #include <sys/stat.h>
  36 #include <sys/uio.h>
  37 #include <errno.h>
  38 #include <fcntl.h>
  39 #include <string.h>
  40 #include <termios.h>
  41 #include <unistd.h>
  42 #include "mille.h"
  43
  44 #include <unctrl.h>
  45 #include <term.h>
  46
  47 /*
  48  * @(#)save.c   1.2 (Berkeley) 3/28/83
  49  */
  50
  51 typedef struct stat     STAT;
  52
  53 /*
  54  *      This routine saves the current game for use at a later date
  55  *      Returns whether or not it could be done.
  56  */
  57 bool
  58 save(void)
  59 {
  60         char    *sp;
  61         int     outfd;
  62         time_t  *tp;
  63         char    buf[80];
  64         time_t  tme;
  65         STAT    junk;
  66         bool    rv;
  67
  68         sp = NULL;
  69         tp = &tme;
  70         if (Fromfile && getyn(SAMEFILEPROMPT))
  71                 strcpy(buf, Fromfile);
  72         else {
  73 over:
  74                 prompt(FILEPROMPT);
  75                 leaveok(Board, FALSE);
  76                 refresh();
  77                 sp = buf;
  78                 while ((*sp = readch()) != '\n') {
  79                         if (*sp == killchar())
  80                                 goto over;
  81                         else if (*sp == erasechar()) {
  82                                 if (--sp < buf)
  83                                         sp = buf;
  84                                 else {
  85                                         addch('\b');
  86                                         /*
  87                                          * if the previous char was a control
  88                                          * char, cover up two characters.
  89                                          */
  90                                         if (*sp < ' ')
  91                                                 addch('\b');
  92                                         clrtoeol();
  93                                 }
  94                         }
  95                         else {
  96                                 addstr(unctrl(*sp));
  97                                 ++sp;
  98                         }
  99                         refresh();
 100                 }
 101                 *sp = '\0';
 102                 leaveok(Board, TRUE);
 103         }
 104
 105         /*
 106          * check for existing files, and confirm overwrite if needed
 107          */
 108
 109         if (sp == buf || (!Fromfile && stat(buf, &junk) > -1
 110             && getyn(OVERWRITEFILEPROMPT) == FALSE))
 111                 return FALSE;
 112
 113         if ((outfd = creat(buf, 0644)) < 0) {
 114                 error(strerror(errno));
 115                 return FALSE;
 116         }
 117         mvwaddstr(Score, ERR_Y, ERR_X, buf);
 118         wrefresh(Score);
 119         time(tp);                       /* get current time             */
 120         rv = varpush(outfd, writev);
 121         close(outfd);
 122         if (rv == FALSE) {
 123                 unlink(buf);
 124         } else {
 125                 strcpy(buf, ctime(tp));
 126                 for (sp = buf; *sp != '\n'; sp++)
 127                         continue;
 128                 *sp = '\0';
 129                 wprintw(Score, " [%s]", buf);
 130         }
 131         wclrtoeol(Score);
 132         wrefresh(Score);
 133         return rv;
 134 }
 135
 136 /*
 137  *      This does the actual restoring.  It returns TRUE if the
 138  * backup was made on exiting, in which case certain things must
 139  * be cleaned up before the game starts.
 140  */
 141 bool
 142 rest_f(char *file)
 143 {
 144
 145         char    *sp;
 146         int     inf;
 147         char    buf[80];
 148         STAT    sbuf;
 149
 150         if ((inf = open(file, O_RDONLY)) < 0) {
 151                 perror(file);
 152                 exit(1);
 153         }
 154         if (fstat(inf, &sbuf) < 0) {            /* get file stats       */
 155                 perror(file);
 156                 exit(1);
 157         }
 158         varpush(inf, readv);
 159         close(inf);
 160         strcpy(buf, ctime(&sbuf.st_mtime));
 161         for (sp = buf; *sp != '\n'; sp++)
 162                 continue;
 163         *sp = '\0';
 164         /*
 165          * initialize some necessary values
 166          */
 167         sprintf(Initstr, "%s [%s]\n", file, buf);
 168         Fromfile = file;
 169         return !On_exit;
 170 }