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/* $OpenBSD: setup.c,v 1.14 2015/12/26 00:26:39 mestre Exp $ */
/* $NetBSD: setup.c,v 1.4 1995/04/24 12:24:41 cgd Exp $ */
/*
* setup.c - set up all files for Phantasia
*/
#include <sys/types.h>
#include <sys/stat.h>
#include "include.h"
#include <limits.h>
#include <fcntl.h>
__dead void Error(char *, char *);
/* */
/************************************************************************
/
/ FUNCTION NAME: main()
/
/ FUNCTION: setup files for Phantasia 3.3.2
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS: none
/
/ RETURN VALUE: none
/
/ MODULES CALLED: exit(), stat(), Error(), open(), close(), fopen(),
/ fgets(), floor(), umask(), strlcpy(),
/ unlink(), fwrite(), fclose(), sscanf(), printf(), strlen(), fprintf()
/
/ GLOBAL INPUTS: Curmonster, _iob[], Databuf[], *Monstfp, Enrgyvoid
/
/ GLOBAL OUTPUTS: Curmonster, Databuf[], *Monstfp, Enrgyvoid
/
/ DESCRIPTION:
/
/ This program tries to verify the parameters specified in
/ the Makefile.
/
/ Create all necessary files. Note that nothing needs to be
/ put in these files.
/ Also, the monster binary data base is created here.
/
*************************************************************************/
static char *files[] = { /* all files to create */
_PATH_MONST,
_PATH_PEOPLE,
_PATH_MESS,
_PATH_LASTDEAD,
_PATH_MOTD,
_PATH_GOLD,
_PATH_VOID,
_PATH_SCORE,
NULL,
};
char *monsterfile="monsters.asc";
int
main(argc, argv)
int argc;
char *argv[];
{
char **filename; /* for pointing to file names */
int fd; /* file descriptor */
FILE *fp; /* for opening files */
struct stat fbuf; /* for getting files statistics */
int ch;
char path[PATH_MAX], *prefix;
while ((ch = getopt(argc, argv, "m:")) != -1)
switch(ch) {
case 'm':
monsterfile = optarg;
break;
case '?':
default:
break;
}
argc -= optind;
argv += optind;
umask(0117); /* only owner can read/write created files */
prefix = getenv("DESTDIR");
/* try to create data files */
filename = &files[0];
while (*filename != NULL)
/* create each file */
{
snprintf(path, sizeof(path), "%s%s", prefix?prefix:"", *filename);
if (stat(path, &fbuf) == 0)
/* file exists; remove it */
{
if (!strcmp(*filename, _PATH_PEOPLE))
/* do not reset character file if it already exists */
{
++filename;
continue;
}
if (!strcmp(*filename, _PATH_SCORE))
/* do not reset score file if it already exists */
{
++filename;
continue;
}
if (unlink(path) < 0)
Error("Cannot unlink %s.\n", path);
/*NOTREACHED*/
}
if ((fd = open(path, O_CREAT | O_TRUNC | O_WRONLY, 0660)) < 0)
Error("Cannot create %s.\n", path);
/*NOTREACHED*/
close(fd); /* close newly created file */
++filename; /* process next file */
}
/* put holy grail info into energy void file */
Enrgyvoid.ev_active = TRUE;
Enrgyvoid.ev_x = ROLL(-1.0e6, 2.0e6);
Enrgyvoid.ev_y = ROLL(-1.0e6, 2.0e6);
snprintf(path, sizeof(path), "%s%s", prefix?prefix:"", _PATH_VOID);
if ((fp = fopen(path, "w")) == NULL)
Error("Cannot update %s.\n", path);
else
{
fwrite(&Enrgyvoid, SZ_VOIDSTRUCT, 1, fp);
fclose(fp);
}
/* create binary monster data base */
snprintf(path, sizeof(path), "%s%s", prefix?prefix:"", _PATH_MONST);
if ((Monstfp = fopen(path, "w")) == NULL)
Error("Cannot update %s.\n", path);
else
{
if ((fp = fopen(monsterfile, "r")) == NULL)
{
fclose(Monstfp);
Error("cannot open %s to create monster database.\n", "monsters.asc");
}
else
{
Curmonster.m_o_strength =
Curmonster.m_o_speed =
Curmonster.m_maxspeed =
Curmonster.m_o_energy =
Curmonster.m_melee =
Curmonster.m_skirmish = 0.0;
while (fgets(Databuf, SZ_DATABUF, fp) != NULL)
/* read in text file, convert to binary */
{
sscanf(&Databuf[24], "%lf%lf%lf%lf%lf%d%d%lf",
&Curmonster.m_strength, &Curmonster.m_brains,
&Curmonster.m_speed, &Curmonster.m_energy,
&Curmonster.m_experience, &Curmonster.m_treasuretype,
&Curmonster.m_type, &Curmonster.m_flock);
Databuf[24] = '\0';
strlcpy(Curmonster.m_name, Databuf, sizeof Curmonster.m_name);
fwrite(&Curmonster, SZ_MONSTERSTRUCT, 1, Monstfp);
}
fclose(fp);
fclose(Monstfp);
}
}
exit(0);
/*NOTREACHED*/
}
/* */
/************************************************************************
/
/ FUNCTION NAME: Error()
/
/ FUNCTION: print an error message, and exit
/
/ AUTHOR: E. A. Estes, 12/4/85
/
/ ARGUMENTS:
/ char *str - format string for printf()
/ char *file - file which caused error
/
/ RETURN VALUE: none
/
/ MODULES CALLED: exit(), perror(), fprintf()
/
/ GLOBAL INPUTS: _iob[]
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/ Print an error message, then exit.
/
*************************************************************************/
void
Error(str, file)
char *str, *file;
{
fprintf(stderr, "Error: ");
fprintf(stderr, str, file);
perror(file);
exit(1);
/* NOTREACHED */
}
/* */
/************************************************************************
/
/ FUNCTION NAME: drandom()
/
/ FUNCTION: return a random number
/
/ AUTHOR: E. A. Estes, 2/7/86
/
/ ARGUMENTS: none
/
/ RETURN VALUE: none
/
/ MODULES CALLED: arc4random()
/
/ GLOBAL INPUTS: none
/
/ GLOBAL OUTPUTS: none
/
/ DESCRIPTION:
/
*************************************************************************/
double
drandom()
{
return((double) arc4random() / (UINT32_MAX + 1.0));
}
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