WARNSify
This commit is contained in:
parent
914e939800
commit
82090a8bf1
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@ -1,4 +1,4 @@
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.\" $NetBSD: dm.8,v 1.3 1995/03/21 15:09:04 cgd Exp $
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.\" $NetBSD: dm.8,v 1.4 1997/10/10 12:49:45 lukem Exp $
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.\"
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.\" Copyright (c) 1987, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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@ -43,12 +43,12 @@
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.Nm ln
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.Fl s Cm dm Ar game
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.Sh DESCRIPTION
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.Nm Dm
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.Nm
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is a program used to regulate game playing.
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.Nm Dm
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.Nm
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expects to be invoked with the name of a game that a user wishes to play.
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This is done by creating symbolic links to
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.Nm dm ,
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.Nm "" ,
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in the directory
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.Pa /usr/games
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for all of the regulated games.
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@ -57,9 +57,9 @@ The actual binaries for these games should be placed in a
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directory,
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.Pa /usr/games/hide ,
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that may only be accessed by the
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.Nm dm
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.Nm
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program.
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.Nm Dm
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.Nm
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determines if the requested game is available and, if so, runs it.
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The file
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.Pa /etc/dm.conf
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@ -88,7 +88,7 @@ game logging file
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.Xr dm.conf 5
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.Sh BUGS
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Two problems result from
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.Nm dm
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.Nm
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running the games setuid
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.Dq games .
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First, all games that allow users to run
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@ -96,7 +96,7 @@ First, all games that allow users to run
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commands should carefully
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set both the real and effective user id's immediately before executing
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those commands. Probably more important is that
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.Nm dm
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.Nm
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never be setuid
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anything but
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.Dq games
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@ -106,6 +106,6 @@ had no reason to run setuid and which accessed user files may have to
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be modified.
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.Sh HISTORY
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The
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.Nm dm
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.Nm
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command appeared in
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.Bx 4.3 tahoe .
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113
games/dm/dm.c
113
games/dm/dm.c
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@ -1,4 +1,4 @@
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/* $NetBSD: dm.c,v 1.6 1997/04/21 11:11:47 mrg Exp $ */
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/* $NetBSD: dm.c,v 1.7 1997/10/10 12:49:49 lukem Exp $ */
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/*
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* Copyright (c) 1987, 1993
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@ -33,17 +33,17 @@
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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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static char copyright[] =
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"@(#) Copyright (c) 1987, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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__COPYRIGHT("@(#) Copyright (c) 1987, 1993\n\
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The Regents of the University of California. All rights reserved.\n");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)dm.c 8.1 (Berkeley) 5/31/93";
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#else
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static char rcsid[] = "$NetBSD: dm.c,v 1.6 1997/04/21 11:11:47 mrg Exp $";
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__RCSID("$NetBSD: dm.c,v 1.7 1997/10/10 12:49:49 lukem Exp $");
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#endif
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#endif /* not lint */
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <err.h>
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#include <ctype.h>
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#include <errno.h>
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#include <nlist.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <utmp.h>
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#include <errno.h>
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#include "pathnames.h"
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static char *game, /* requested game */
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*gametty; /* from tty? */
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void c_day __P((char *, char *, char *));
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void c_game __P((char *, char *, char *, char *));
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void c_tty __P((char *));
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const char *hour __P((int));
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double load __P((void));
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int main __P((int, char *[]));
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void nogamefile __P((void));
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void play __P((char **));
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void read_config __P((void));
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int users __P((void));
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int
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main(argc, argv)
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int argc;
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char *cp;
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nogamefile();
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game = (cp = rindex(*argv, '/')) ? ++cp : *argv;
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game = (cp = strrchr(*argv, '/')) ? ++cp : *argv;
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if (!strcmp(game, "dm"))
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exit(0);
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#endif
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play(argv);
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/*NOTREACHED*/
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return(0);
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}
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/*
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* play --
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* play the game
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*/
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void
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play(args)
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char **args;
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{
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(void)setpriority(PRIO_PROCESS, 0, priority);
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setgid(getgid()); /* we run setgid kmem; lose it */
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execv(pbuf, args);
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(void)fprintf(stderr, "dm: %s: %s\n", pbuf, strerror(errno));
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exit(1);
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err(1, "%s", pbuf);
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}
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/*
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* read_config --
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* read through config file, looking for key words.
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*/
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void
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read_config()
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{
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FILE *cfp;
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* c_day --
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* if day is today, see if okay to play
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*/
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void
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c_day(s_day, s_start, s_stop)
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char *s_day, *s_start, *s_stop;
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{
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return;
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start = atoi(s_start);
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stop = atoi(s_stop);
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if (ct->tm_hour >= start && ct->tm_hour < stop) {
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fputs("dm: Sorry, games are not available from ", stderr);
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hour(start);
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fputs(" to ", stderr);
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hour(stop);
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fputs(" today.\n", stderr);
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exit(0);
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}
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if (ct->tm_hour >= start && ct->tm_hour < stop)
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errx(0, "Sorry, games are not available from %s to %s today.",
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hour(start), hour(stop));
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}
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/*
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* c_tty --
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* decide if this tty can be used for games.
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*/
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void
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c_tty(tty)
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char *tty;
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{
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static char *p_tty;
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if (first) {
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p_tty = rindex(gametty, '/');
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p_tty = strrchr(gametty, '/');
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first = 0;
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}
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if (!strcmp(gametty, tty) || p_tty && !strcmp(p_tty, tty)) {
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fprintf(stderr, "dm: Sorry, you may not play games on %s.\n", gametty);
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exit(0);
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}
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if (!strcmp(gametty, tty) || (p_tty && !strcmp(p_tty, tty)))
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errx(1, "Sorry, you may not play games on %s.", gametty);
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}
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/*
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* c_game --
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* see if game can be played now.
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*/
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void
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c_game(s_game, s_load, s_users, s_priority)
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char *s_game, *s_load, *s_users, *s_priority;
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{
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static int found;
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double load();
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if (found)
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return;
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if (strcmp(game, s_game) && strcasecmp("default", s_game))
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return;
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++found;
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if (isdigit(*s_load) && atoi(s_load) < load()) {
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fputs("dm: Sorry, the load average is too high right now.\n", stderr);
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exit(0);
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}
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if (isdigit(*s_users) && atoi(s_users) <= users()) {
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fputs("dm: Sorry, there are too many users logged on right now.\n", stderr);
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exit(0);
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}
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if (isdigit(*s_load) && atoi(s_load) < load())
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errx(0, "Sorry, the load average is too high right now.");
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if (isdigit(*s_users) && atoi(s_users) <= users())
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errx(0, "Sorry, there are too many users logged on right now.");
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if (isdigit(*s_priority))
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priority = atoi(s_priority);
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}
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{
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double avenrun[3];
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if (getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0])) < 0) {
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fputs("dm: getloadavg() failed.\n", stderr);
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exit(1);
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}
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if (getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0])) < 0)
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err(1, "getloadavg() failed.");
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return(avenrun[2]);
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}
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* todo: check idle time; if idle more than X minutes, don't
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* count them.
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*/
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int
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users()
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{
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register int nusers, utmp;
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int nusers, utmp;
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struct utmp buf;
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if ((utmp = open(_PATH_UTMP, O_RDONLY, 0)) < 0) {
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(void)fprintf(stderr, "dm: %s: %s\n",
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_PATH_UTMP, strerror(errno));
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exit(1);
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}
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if ((utmp = open(_PATH_UTMP, O_RDONLY, 0)) < 0)
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err(1, "%s", _PATH_UTMP);
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for (nusers = 0; read(utmp, (char *)&buf, sizeof(struct utmp)) > 0;)
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if (buf.ut_name[0] != '\0')
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++nusers;
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return(nusers);
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}
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void
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nogamefile()
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{
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register int fd, n;
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int fd, n;
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char buf[BUFSIZ];
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if ((fd = open(_PATH_NOGAMES, O_RDONLY, 0)) >= 0) {
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* hour --
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* print out the hour in human form
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*/
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const char *
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hour(h)
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int h;
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{
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switch(h) {
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case 0:
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fputs("midnight", stderr);
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break;
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case 12:
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fputs("noon", stderr);
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break;
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default:
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if (h > 12)
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fprintf(stderr, "%dpm", h - 12);
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else
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fprintf(stderr, "%dam", h);
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}
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static char *hours[] = {
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"midnight", "1am", "2am", "3am", "4am", "5am",
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"6am", "7am", "8am", "9am", "10am", "11am",
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"noon", "1pm", "2pm", "3pm", "4pm", "5pm",
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"6pm", "7pm", "8pm", "9pm", "10pm", "11pm" };
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if (h < 0 || h > 23)
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return "BAD TIME";
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else
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return hours[h];
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}
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#ifdef LOG
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if (!flock(fileno(lp), LOCK_EX))
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break;
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if (lock_cnt == 4) {
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perror("dm: log lock");
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warnx("log lock");
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(void)fclose(lp);
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return;
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}
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.\" $NetBSD: factor.6,v 1.4 1995/03/23 08:28:05 cgd Exp $
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.\" $NetBSD: factor.6,v 1.5 1997/10/10 12:51:27 lukem Exp $
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.\"
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.\" Copyright (c) 1989, 1993
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.\" The Regents of the University of California. All rights reserved.
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@ -50,14 +50,14 @@
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.Nd
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factor a number, generate primes
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.Sh SYNOPSIS
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.Nm factor
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.Nm
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.Op Ar number ...
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.br
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.Nm primes
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.Op Ar start Op Ar stop
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.Sh DESCRIPTION
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The
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.Nm factor
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.Nm
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utility will factor integers between -2147483648 and 2147483647 inclusive.
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When a number is factored, it is printed, followed by a
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.Dq \: ,
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more than once.
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.Pp
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When
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.Nm factor
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.Nm
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is invoked with one or more arguments,
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each argument will be factored.
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.Pp
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When
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.Nm factor
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.Nm
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is invoked with no arguments,
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.Nm factor
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.Nm
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reads numbers, one per line, from standard input, until end of file or error.
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Leading white-space and empty lines are ignored.
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Numbers may be preceded by a single - or +.
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.Sq ouch
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being written to standard error.
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.Sh BUGS
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.Nm Factor
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.Nm
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cannot handle the
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.Dq 10 most wanted
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factor list,
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@ -1,4 +1,4 @@
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/* $NetBSD: factor.c,v 1.6 1997/01/07 12:05:10 tls Exp $ */
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/* $NetBSD: factor.c,v 1.7 1997/10/10 12:51:32 lukem Exp $ */
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/*
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* Copyright (c) 1989, 1993
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@ -36,17 +36,17 @@
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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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static char copyright[] =
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"@(#) Copyright (c) 1989, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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__COPYRIGHT("@(#) Copyright (c) 1989, 1993\n\
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The Regents of the University of California. All rights reserved.\n");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)factor.c 8.4 (Berkeley) 5/4/95";
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#else
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static char rcsid[] = "$NetBSD: factor.c,v 1.6 1997/01/07 12:05:10 tls Exp $";
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__RCSID("$NetBSD: factor.c,v 1.7 1997/10/10 12:51:32 lukem Exp $");
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#endif
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#endif /* not lint */
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extern ubig prime[];
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extern ubig *pr_limit; /* largest prime in the prime array */
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int main __P((int, char *[]));
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void pr_fact __P((ubig)); /* print factors of a value */
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void usage __P((void));
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@ -100,7 +101,7 @@ main(argc, argv)
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int ch;
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char *p, buf[100]; /* > max number of digits. */
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while ((ch = getopt(argc, argv, "")) != EOF)
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while ((ch = getopt(argc, argv, "")) != -1)
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switch (ch) {
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case '?':
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default:
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