OpenBSD-4.6/games/battlestar/save.c
/* $OpenBSD: save.c,v 1.10 2004/07/10 07:26:22 deraadt Exp $ */
/* $NetBSD: save.c,v 1.3 1995/03/21 15:07:57 cgd Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)save.c 8.2 (Berkeley) 4/28/95";
#else
static char rcsid[] = "$OpenBSD: save.c,v 1.10 2004/07/10 07:26:22 deraadt Exp $";
#endif
#endif /* not lint */
#include "extern.h"
void
restore(const char *filename)
{
int n;
int tmp;
FILE *fp;
if (filename == NULL)
exit(1); /* Error determining save file name. */
if ((fp = fopen(filename, "r")) == NULL)
err(1, "can't open %s for reading", filename);
fread(&WEIGHT, sizeof WEIGHT, 1, fp);
fread(&CUMBER, sizeof CUMBER, 1, fp);
fread(&ourclock, sizeof ourclock, 1, fp);
fread(&tmp, sizeof tmp, 1, fp);
location = tmp ? dayfile : nightfile;
for (n = 1; n <= NUMOFROOMS; n++) {
fread(location[n].link, sizeof location[n].link, 1, fp);
fread(location[n].objects, sizeof location[n].objects, 1, fp);
}
fread(inven, sizeof inven, 1, fp);
fread(wear, sizeof wear, 1, fp);
fread(injuries, sizeof injuries, 1, fp);
fread(notes, sizeof notes, 1, fp);
fread(&direction, sizeof direction, 1, fp);
fread(&position, sizeof position, 1, fp);
fread(&ourtime, sizeof ourtime, 1, fp);
fread(&fuel, sizeof fuel, 1, fp);
fread(&torps, sizeof torps, 1, fp);
fread(&carrying, sizeof carrying, 1, fp);
fread(&encumber, sizeof encumber, 1, fp);
fread(&rythmn, sizeof rythmn, 1, fp);
fread(&followfight, sizeof followfight, 1, fp);
fread(&ate, sizeof ate, 1, fp);
fread(&snooze, sizeof snooze, 1, fp);
fread(&meetgirl, sizeof meetgirl, 1, fp);
fread(&followgod, sizeof followgod, 1, fp);
fread(&godready, sizeof godready, 1, fp);
fread(&win, sizeof win, 1, fp);
fread(&wintime, sizeof wintime, 1, fp);
fread(&matchlight, sizeof matchlight, 1, fp);
fread(&matchcount, sizeof matchcount, 1, fp);
fread(&loved, sizeof loved, 1, fp);
fread(&pleasure, sizeof pleasure, 1, fp);
fread(&power, sizeof power, 1, fp);
/* Check the final read in case file was truncated */
if (fread(&ego, sizeof ego, 1, fp) < 1)
errx(1, "save file %s is truncated", filename);
fclose(fp);
}
void
save(const char *filename)
{
int n;
int tmp;
FILE *fp;
if (filename == NULL)
return; /* Error determining save file name. */
if ((fp = fopen(filename, "w")) == NULL) {
warn("can't open %s for writing", filename);
return;
}
fwrite(&WEIGHT, sizeof WEIGHT, 1, fp);
fwrite(&CUMBER, sizeof CUMBER, 1, fp);
fwrite(&ourclock, sizeof ourclock, 1, fp);
tmp = location == dayfile;
fwrite(&tmp, sizeof tmp, 1, fp);
for (n = 1; n <= NUMOFROOMS; n++) {
fwrite(location[n].link, sizeof location[n].link, 1, fp);
fwrite(location[n].objects, sizeof location[n].objects, 1, fp);
}
fwrite(inven, sizeof inven, 1, fp);
fwrite(wear, sizeof wear, 1, fp);
fwrite(injuries, sizeof injuries, 1, fp);
fwrite(notes, sizeof notes, 1, fp);
fwrite(&direction, sizeof direction, 1, fp);
fwrite(&position, sizeof position, 1, fp);
fwrite(&ourtime, sizeof ourtime, 1, fp);
fwrite(&fuel, sizeof fuel, 1, fp);
fwrite(&torps, sizeof torps, 1, fp);
fwrite(&carrying, sizeof carrying, 1, fp);
fwrite(&encumber, sizeof encumber, 1, fp);
fwrite(&rythmn, sizeof rythmn, 1, fp);
fwrite(&followfight, sizeof followfight, 1, fp);
fwrite(&ate, sizeof ate, 1, fp);
fwrite(&snooze, sizeof snooze, 1, fp);
fwrite(&meetgirl, sizeof meetgirl, 1, fp);
fwrite(&followgod, sizeof followgod, 1, fp);
fwrite(&godready, sizeof godready, 1, fp);
fwrite(&win, sizeof win, 1, fp);
fwrite(&wintime, sizeof wintime, 1, fp);
fwrite(&matchlight, sizeof matchlight, 1, fp);
fwrite(&matchcount, sizeof matchcount, 1, fp);
fwrite(&loved, sizeof loved, 1, fp);
fwrite(&pleasure, sizeof pleasure, 1, fp);
fwrite(&power, sizeof power, 1, fp);
fwrite(&ego, sizeof ego, 1, fp);
fflush(fp);
if (ferror(fp))
warn("fwrite %s", filename);
else
printf("Saved in %s.\n", filename);
fclose(fp);
}
/*
* Given a save file name (possibly from fgetln, so without terminating NUL),
* determine the name of the file to be saved to by adding the HOME
* directory if the name does not contain a slash. Name will be allocated
* with malloc(3).
*/
char *
save_file_name(const char *filename, size_t len)
{
char *home;
char *newname;
size_t tmpl;
if (memchr(filename, '/', len)) {
if ((newname = (char *)malloc(len + 1)) == NULL) {
warnx("out of memory");
return NULL;
}
memcpy(newname, filename, len);
newname[len] = 0;
} else {
if ((home = getenv("HOME")) != NULL) {
tmpl = strlen(home);
if ((newname = (char *)malloc(tmpl + len + 2)) == NULL) {
warnx("out of memory");
return NULL;
}
memcpy(newname, home, tmpl);
newname[tmpl] = '/';
memcpy(newname + tmpl + 1, filename, len);
newname[tmpl + len + 1] = 0;
} else {
if ((newname = (char *)malloc(len + 1)) == NULL) {
warnx("out of memory");
return NULL;
}
memcpy(newname, filename, len);
newname[len] = 0;
}
}
return(newname);
}