Hush Full Node software. We were censored from Github, this is where all development happens now.
https://hush.is
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
462 lines
8.6 KiB
462 lines
8.6 KiB
// Copyright (c) 2016-2022 The Hush developers
|
|
// Distributed under the GPLv3 software license, see the accompanying
|
|
// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
|
|
/*
|
|
* Various installation dependent routines
|
|
*
|
|
* @(#)mach_dep.c 4.37 (Berkeley) 05/23/83
|
|
*
|
|
* Rogue: Exploring the Dungeons of Doom
|
|
* Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
|
|
* All rights reserved.
|
|
*
|
|
* See the file LICENSE.TXT for full copyright and licensing information.
|
|
*/
|
|
|
|
/*
|
|
* The various tuneable defines are:
|
|
*
|
|
* SCOREFILE Where/if the score file should live.
|
|
* ALLSCORES Score file is top ten scores, not top ten
|
|
* players. This is only useful when only a few
|
|
* people will be playing; otherwise the score file
|
|
* gets hogged by just a few people.
|
|
* NUMSCORES Number of scores in the score file (default 10).
|
|
* NUMNAME String version of NUMSCORES (first character
|
|
* should be capitalized) (default "Ten").
|
|
* MAXLOAD What (if any) the maximum load average should be
|
|
* when people are playing. Since it is divided
|
|
* by 10, to specify a load limit of 4.0, MAXLOAD
|
|
* should be "40". If defined, then
|
|
* LOADAV Should it use it's own routine to get
|
|
* the load average?
|
|
* NAMELIST If so, where does the system namelist
|
|
* hide?
|
|
* MAXUSERS What (if any) the maximum user count should be
|
|
* when people are playing. If defined, then
|
|
* UCOUNT Should it use it's own routine to count
|
|
* users?
|
|
* UTMP If so, where does the user list hide?
|
|
* CHECKTIME How often/if it should check during the game
|
|
* for high load average.
|
|
*/
|
|
|
|
#include <signal.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <limits.h>
|
|
#include <string.h>
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
#include <time.h>
|
|
//#include <curses.h>
|
|
#include "rogue.h"
|
|
#include "extern.h"
|
|
|
|
#define NOOP(x) (x += 0)
|
|
|
|
# ifndef NUMSCORES
|
|
# define NUMSCORES 10
|
|
# define NUMNAME "Ten"
|
|
# endif
|
|
|
|
unsigned int numscores = NUMSCORES;
|
|
char *Numname = NUMNAME;
|
|
|
|
# ifdef ALLSCORES
|
|
bool allscore = TRUE;
|
|
# else /* ALLSCORES */
|
|
bool allscore = FALSE;
|
|
# endif /* ALLSCORES */
|
|
|
|
#ifdef CHECKTIME
|
|
static int num_checks; /* times we've gone over in checkout() */
|
|
#endif /* CHECKTIME */
|
|
|
|
/*
|
|
* init_check:
|
|
* Check out too see if it is proper to play the game now
|
|
*/
|
|
|
|
void
|
|
init_check()
|
|
{
|
|
#if defined(MAXLOAD) || defined(MAXUSERS)
|
|
if (too_much())
|
|
{
|
|
printf("Sorry, %s, but the system is too loaded now.\n", whoami);
|
|
printf("Try again later. Meanwhile, why not enjoy a%s %s?\n",
|
|
vowelstr(fruit), fruit);
|
|
if (author())
|
|
printf("However, since you're a good guy, it's up to you\n");
|
|
else
|
|
exit(1);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* open_score:
|
|
* Open up the score file for future use
|
|
*/
|
|
|
|
void
|
|
open_score()
|
|
{
|
|
#ifdef SCOREFILE
|
|
char *scorefile = SCOREFILE;
|
|
/*
|
|
* We drop setgid privileges after opening the score file, so subsequent
|
|
* open()'s will fail. Just reuse the earlier filehandle.
|
|
*/
|
|
|
|
if (scoreboard != NULL) {
|
|
rewind(scoreboard);
|
|
return;
|
|
}
|
|
|
|
scoreboard = fopen(scorefile, "r+");
|
|
|
|
if ((scoreboard == NULL) && (errno == ENOENT))
|
|
{
|
|
scoreboard = fopen(scorefile, "w+");
|
|
md_chmod(scorefile,0664);
|
|
}
|
|
|
|
if (scoreboard == NULL) {
|
|
fprintf(stderr, "Could not open %s for writing: %s\n", scorefile, strerror(errno));
|
|
fflush(stderr);
|
|
}
|
|
#else
|
|
scoreboard = NULL;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* setup:
|
|
* Get starting setup for all games
|
|
*/
|
|
|
|
void
|
|
setup()
|
|
{
|
|
#ifdef CHECKTIME
|
|
int checkout();
|
|
#endif
|
|
|
|
#ifdef DUMP
|
|
md_onsignal_autosave();
|
|
#else
|
|
md_onsignal_default();
|
|
#endif
|
|
|
|
#ifdef CHECKTIME
|
|
md_start_checkout_timer(CHECKTIME*60);
|
|
num_checks = 0;
|
|
#endif
|
|
|
|
raw(); /* Raw mode */
|
|
noecho(); /* Echo off */
|
|
keypad(stdscr,1);
|
|
getltchars(); /* get the local tty chars */
|
|
}
|
|
|
|
/*
|
|
* getltchars:
|
|
* Get the local tty chars for later use
|
|
*/
|
|
|
|
void
|
|
getltchars()
|
|
{
|
|
got_ltc = TRUE;
|
|
orig_dsusp = md_dsuspchar();
|
|
md_setdsuspchar( md_suspchar() );
|
|
}
|
|
|
|
/*
|
|
* resetltchars:
|
|
* Reset the local tty chars to original values.
|
|
*/
|
|
void
|
|
resetltchars(void)
|
|
{
|
|
if (got_ltc) {
|
|
md_setdsuspchar(orig_dsusp);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* playltchars:
|
|
* Set local tty chars to the values we use when playing.
|
|
*/
|
|
void
|
|
playltchars(void)
|
|
{
|
|
if (got_ltc) {
|
|
md_setdsuspchar( md_suspchar() );
|
|
}
|
|
}
|
|
|
|
/*
|
|
* start_score:
|
|
* Start the scoring sequence
|
|
*/
|
|
|
|
void
|
|
start_score()
|
|
{
|
|
#ifdef CHECKTIME
|
|
md_stop_checkout_timer();
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* is_symlink:
|
|
* See if the file has a symbolic link
|
|
*/
|
|
bool
|
|
is_symlink(char *sp)
|
|
{
|
|
#ifdef S_IFLNK
|
|
struct stat sbuf2;
|
|
|
|
if (lstat(sp, &sbuf2) < 0)
|
|
return FALSE;
|
|
else
|
|
return ((sbuf2.st_mode & S_IFMT) != S_IFREG);
|
|
#else
|
|
NOOP(sp);
|
|
return FALSE;
|
|
#endif
|
|
}
|
|
|
|
#if defined(MAXLOAD) || defined(MAXUSERS)
|
|
/*
|
|
* too_much:
|
|
* See if the system is being used too much for this game
|
|
*/
|
|
bool
|
|
too_much()
|
|
{
|
|
#ifdef MAXLOAD
|
|
double avec[3];
|
|
#else
|
|
int cnt;
|
|
#endif
|
|
|
|
#ifdef MAXLOAD
|
|
md_loadav(avec);
|
|
if (avec[1] > (MAXLOAD / 10.0))
|
|
return TRUE;
|
|
#endif
|
|
#ifdef MAXUSERS
|
|
if (ucount() > MAXUSERS)
|
|
return TRUE;
|
|
#endif
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* author:
|
|
* See if a user is an author of the program
|
|
*/
|
|
bool
|
|
author()
|
|
{
|
|
#ifdef MASTER
|
|
if (wizard)
|
|
return TRUE;
|
|
#endif
|
|
switch (md_getuid())
|
|
{
|
|
case -1:
|
|
return TRUE;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef CHECKTIME
|
|
/*
|
|
* checkout:
|
|
* Check each CHECKTIME seconds to see if the load is too high
|
|
*/
|
|
|
|
checkout(struct rogue_state *rs,int sig)
|
|
{
|
|
static char *msgs[] = {
|
|
"The load is too high to be playing. Please leave in %0.1f minutes",
|
|
"Please save your game. You have %0.1f minutes",
|
|
"Last warning. You have %0.1f minutes to leave",
|
|
};
|
|
int checktime;
|
|
|
|
if (too_much())
|
|
{
|
|
if (author())
|
|
{
|
|
num_checks = 1;
|
|
chmsg(rs,"The load is rather high, O exaulted one");
|
|
}
|
|
else if (num_checks++ == 3)
|
|
fatal("Sorry. You took too long. You are dead\n");
|
|
checktime = (CHECKTIME * 60) / num_checks;
|
|
chmsg(rs,msgs[num_checks - 1], ((double) checktime / 60.0));
|
|
}
|
|
else
|
|
{
|
|
if (num_checks)
|
|
{
|
|
num_checks = 0;
|
|
chmsg(rs,"The load has dropped back down. You have a reprieve");
|
|
}
|
|
checktime = (CHECKTIME * 60);
|
|
}
|
|
|
|
md_start_checkout_timer(checktime);
|
|
}
|
|
|
|
/*
|
|
* chmsg:
|
|
* checkout()'s version of msg. If we are in the middle of a
|
|
* shell, do a printf instead of a msg to a the refresh.
|
|
*/
|
|
/* VARARGS1 */
|
|
|
|
chmsg(struct rogue_state *rs,char *fmt, int arg)
|
|
{
|
|
if (!in_shell)
|
|
msg(rs,fmt, arg);
|
|
else
|
|
{
|
|
printf(fmt, arg);
|
|
putchar('\n');
|
|
fflush(stdout);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef UCOUNT
|
|
/*
|
|
* ucount:
|
|
* count number of users on the system
|
|
*/
|
|
#include <utmp.h>
|
|
|
|
struct utmp buf;
|
|
|
|
int
|
|
ucount()
|
|
{
|
|
struct utmp *up;
|
|
FILE *utmp;
|
|
int count;
|
|
|
|
if ((utmp = fopen(UTMP, "r")) == NULL)
|
|
return 0;
|
|
|
|
up = &buf;
|
|
count = 0;
|
|
|
|
while (fread(up, 1, sizeof (*up), utmp) > 0)
|
|
if (buf.ut_name[0] != '\0')
|
|
count++;
|
|
fclose(utmp);
|
|
return count;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* lock_sc:
|
|
* lock the score file. If it takes too long, ask the user if
|
|
* they care to wait. Return TRUE if the lock is successful.
|
|
*/
|
|
static FILE *lfd = NULL;
|
|
bool
|
|
lock_sc()
|
|
{
|
|
#if defined(SCOREFILE) && defined(LOCKFILE)
|
|
int cnt;
|
|
static struct stat sbuf;
|
|
char *lockfile = LOCKFILE;
|
|
|
|
over:
|
|
if ((lfd=fopen(lockfile, "w+")) != NULL)
|
|
return TRUE;
|
|
for (cnt = 0; cnt < 5; cnt++)
|
|
{
|
|
md_sleep(1);
|
|
if ((lfd=fopen(lockfile, "w+")) != NULL)
|
|
return TRUE;
|
|
}
|
|
if (stat(lockfile, &sbuf) < 0)
|
|
{
|
|
lfd=fopen(lockfile, "w+");
|
|
return TRUE;
|
|
}
|
|
if (time(NULL) - sbuf.st_mtime > 10)
|
|
{
|
|
if (md_unlink(lockfile) < 0)
|
|
return FALSE;
|
|
goto over;
|
|
}
|
|
else
|
|
{
|
|
printf("The score file is very busy. Do you want to wait longer\n");
|
|
printf("for it to become free so your score can get posted?\n");
|
|
printf("If so, type \"y\"\n");
|
|
if (fgets(prbuf, MAXSTR, stdin) != 0 )
|
|
;
|
|
if (prbuf[0] == 'y')
|
|
for (;;)
|
|
{
|
|
if ((lfd=fopen(lockfile, "w+")) != 0)
|
|
return TRUE;
|
|
if (stat(lockfile, &sbuf) < 0)
|
|
{
|
|
lfd=fopen(lockfile, "w+");
|
|
return TRUE;
|
|
}
|
|
if (time(NULL) - sbuf.st_mtime > 10)
|
|
{
|
|
if (md_unlink(lockfile) < 0)
|
|
return FALSE;
|
|
}
|
|
md_sleep(1);
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
#else
|
|
return TRUE;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* unlock_sc:
|
|
* Unlock the score file
|
|
*/
|
|
|
|
void
|
|
unlock_sc()
|
|
{
|
|
#if defined(SCOREFILE) && defined(LOCKFILE)
|
|
if (lfd != NULL)
|
|
fclose(lfd);
|
|
lfd = NULL;
|
|
md_unlink(LOCKFILE);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* flush_type:
|
|
* Flush typeahead for traps, etc.
|
|
*/
|
|
|
|
void
|
|
flush_type()
|
|
{
|
|
flushinp();
|
|
}
|
|
|