6c243d931c
allowing the user to choose the name of the save file and specify it on the command line when restoring. It also eliminates a buffer overrun in determining the path to the save file, and any particular arbitrary limit on the name length. In the name of a tidier home directory, the default name is changed from "Bstar" to ".Bstar". Patch supplied in PR 8085 by Joseph Myers <jsm28@cam.ac.uk> Minor modification (s/startup/filename/ in initialize()) by me.
204 lines
6.6 KiB
C
204 lines
6.6 KiB
C
/* $NetBSD: save.c,v 1.9 1999/07/28 01:45:43 hubertf Exp $ */
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/*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)save.c 8.2 (Berkeley) 4/28/95";
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#else
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__RCSID("$NetBSD: save.c,v 1.9 1999/07/28 01:45:43 hubertf Exp $");
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#endif
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#endif /* not lint */
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#include "extern.h"
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void
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restore(filename)
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const char *filename;
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{
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int n;
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int tmp;
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FILE *fp;
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if (filename == NULL)
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exit(1); /* Error determining save file name. */
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if ((fp = fopen(filename, "r")) == 0) {
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err(1, "fopen %s", filename);
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}
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fread(&WEIGHT, sizeof WEIGHT, 1, fp);
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fread(&CUMBER, sizeof CUMBER, 1, fp);
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fread(&ourclock, sizeof ourclock, 1, fp);
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fread(&tmp, sizeof tmp, 1, fp);
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location = tmp ? dayfile : nightfile;
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for (n = 1; n <= NUMOFROOMS; n++) {
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fread(location[n].link, sizeof location[n].link, 1, fp);
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fread(location[n].objects, sizeof location[n].objects, 1, fp);
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}
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fread(inven, sizeof inven, 1, fp);
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fread(wear, sizeof wear, 1, fp);
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fread(injuries, sizeof injuries, 1, fp);
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fread(notes, sizeof notes, 1, fp);
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fread(&direction, sizeof direction, 1, fp);
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fread(&position, sizeof position, 1, fp);
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fread(&ourtime, sizeof ourtime, 1, fp);
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fread(&fuel, sizeof fuel, 1, fp);
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fread(&torps, sizeof torps, 1, fp);
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fread(&carrying, sizeof carrying, 1, fp);
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fread(&encumber, sizeof encumber, 1, fp);
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fread(&rythmn, sizeof rythmn, 1, fp);
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fread(&followfight, sizeof followfight, 1, fp);
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fread(&ate, sizeof ate, 1, fp);
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fread(&snooze, sizeof snooze, 1, fp);
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fread(&meetgirl, sizeof meetgirl, 1, fp);
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fread(&followgod, sizeof followgod, 1, fp);
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fread(&godready, sizeof godready, 1, fp);
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fread(&win, sizeof win, 1, fp);
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fread(&wintime, sizeof wintime, 1, fp);
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fread(&matchlight, sizeof matchlight, 1, fp);
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fread(&matchcount, sizeof matchcount, 1, fp);
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fread(&loved, sizeof loved, 1, fp);
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fread(&pleasure, sizeof pleasure, 1, fp);
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fread(&power, sizeof power, 1, fp);
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/* We must check the last read, to catch truncated save files */
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if (fread(&ego, sizeof ego, 1, fp) < 1)
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errx(1, "save file %s too short", filename);
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fclose(fp);
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}
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void
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save(filename)
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const char *filename;
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{
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int n;
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int tmp;
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FILE *fp;
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if (filename == NULL)
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return; /* Error determining save file name. */
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if ((fp = fopen(filename, "w")) == NULL) {
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warn("fopen %s", filename);
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return;
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}
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printf("Saved in %s.\n", filename);
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fwrite(&WEIGHT, sizeof WEIGHT, 1, fp);
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fwrite(&CUMBER, sizeof CUMBER, 1, fp);
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fwrite(&ourclock, sizeof ourclock, 1, fp);
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tmp = location == dayfile;
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fwrite(&tmp, sizeof tmp, 1, fp);
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for (n = 1; n <= NUMOFROOMS; n++) {
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fwrite(location[n].link, sizeof location[n].link, 1, fp);
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fwrite(location[n].objects, sizeof location[n].objects, 1, fp);
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}
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fwrite(inven, sizeof inven, 1, fp);
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fwrite(wear, sizeof wear, 1, fp);
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fwrite(injuries, sizeof injuries, 1, fp);
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fwrite(notes, sizeof notes, 1, fp);
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fwrite(&direction, sizeof direction, 1, fp);
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fwrite(&position, sizeof position, 1, fp);
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fwrite(&ourtime, sizeof ourtime, 1, fp);
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fwrite(&fuel, sizeof fuel, 1, fp);
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fwrite(&torps, sizeof torps, 1, fp);
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fwrite(&carrying, sizeof carrying, 1, fp);
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fwrite(&encumber, sizeof encumber, 1, fp);
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fwrite(&rythmn, sizeof rythmn, 1, fp);
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fwrite(&followfight, sizeof followfight, 1, fp);
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fwrite(&ate, sizeof ate, 1, fp);
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fwrite(&snooze, sizeof snooze, 1, fp);
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fwrite(&meetgirl, sizeof meetgirl, 1, fp);
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fwrite(&followgod, sizeof followgod, 1, fp);
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fwrite(&godready, sizeof godready, 1, fp);
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fwrite(&win, sizeof win, 1, fp);
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fwrite(&wintime, sizeof wintime, 1, fp);
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fwrite(&matchlight, sizeof matchlight, 1, fp);
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fwrite(&matchcount, sizeof matchcount, 1, fp);
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fwrite(&loved, sizeof loved, 1, fp);
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fwrite(&pleasure, sizeof pleasure, 1, fp);
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fwrite(&power, sizeof power, 1, fp);
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fwrite(&ego, sizeof ego, 1, fp);
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fflush(fp);
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if (ferror(fp))
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warn("fwrite %s", filename);
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fclose(fp);
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}
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/*
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* Given a save file name (possibly from fgetln, so without terminating NUL),
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* determine the name of the file to be saved to by adding the HOME
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* directory if the name does not contain a slash. Name will be allocated
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* with malloc(3).
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*/
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char *
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save_file_name(filename, len)
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const char *filename;
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size_t len;
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{
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char *home;
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char *newname;
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size_t tmpl;
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if (memchr(filename, '/', len)) {
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newname = malloc(len + 1);
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if (newname == NULL) {
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warnx("out of memory");
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return NULL;
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}
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memcpy(newname, filename, len);
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newname[len] = 0;
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} else {
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home = getenv("HOME");
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if (home != NULL) {
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tmpl = strlen(home);
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newname = malloc(tmpl + len + 2);
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if (newname == NULL) {
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warnx("out of memory");
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return NULL;
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}
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memcpy(newname, home, tmpl);
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newname[tmpl] = '/';
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memcpy(newname + tmpl + 1, filename, len);
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newname[tmpl + len + 1] = 0;
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} else {
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newname = malloc(len + 1);
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if (newname == NULL) {
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warnx("out of memory");
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return NULL;
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}
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memcpy(newname, filename, len);
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newname[len] = 0;
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}
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}
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return newname;
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}
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