mille/save.c

   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 }