-/* $NetBSD: dm.c,v 1.14 1999/09/22 18:54:03 jsm Exp $ */
+/* $NetBSD: dm.c,v 1.29 2009/08/27 00:22:28 dholland Exp $ */
/*
* Copyright (c) 1987, 1993
* 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
+ * 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.
*
#include <sys/cdefs.h>
#ifndef lint
-__COPYRIGHT("@(#) Copyright (c) 1987, 1993\n\
- The Regents of the University of California. All rights reserved.\n");
+__COPYRIGHT("@(#) Copyright (c) 1987, 1993\
+ The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)dm.c 8.1 (Berkeley) 5/31/93";
#else
-__RCSID("$NetBSD: dm.c,v 1.14 1999/09/22 18:54:03 jsm Exp $");
+__RCSID("$NetBSD: dm.c,v 1.29 2009/08/27 00:22:28 dholland Exp $");
#endif
#endif /* not lint */
#include <string.h>
#include <time.h>
#include <unistd.h>
-#include <utmp.h>
+#include "utmpentry.h"
#include "pathnames.h"
static time_t now; /* current time value */
static char *game, /* requested game */
*gametty; /* from tty? */
-void c_day __P((const char *, const char *, const char *));
-void c_game __P((const char *, const char *, const char *, const char *));
-void c_tty __P((const char *));
-const char *hour __P((int));
-double load __P((void));
-int main __P((int, char *[]));
-void nogamefile __P((void));
-void play __P((char **)) __attribute__((__noreturn__));
-void read_config __P((void));
-int users __P((void));
+static void c_day(const char *, const char *, const char *);
+static void c_game(const char *, const char *, const char *, const char *);
+static void c_tty(const char *);
+static const char *hour(int);
+static double load(void);
+static void nogamefile(void);
+static void play(char **) __dead;
+static void read_config(void);
+static int users(void);
+
+#ifdef LOG
+static void logfile(void);
+#endif
int
-main(argc, argv)
- int argc;
- char *argv[];
+main(int argc __unused, char *argv[])
{
char *cp;
* play --
* play the game
*/
-void
-play(args)
- char **args;
+static void
+play(char **args)
{
char pbuf[MAXPATHLEN];
- (void)strncpy(pbuf, _PATH_HIDE, sizeof(pbuf) - 1);
- (void)strncpy(pbuf + sizeof(_PATH_HIDE) - 1, game,
- sizeof(pbuf) - sizeof(_PATH_HIDE) - 1);
- pbuf[sizeof(pbuf) - 1] = '\0';
+ snprintf(pbuf, sizeof(pbuf), "%s%s", _PATH_HIDE, game);
if (priority > 0) /* < 0 requires root */
(void)setpriority(PRIO_PROCESS, 0, priority);
execv(pbuf, args);
* read_config --
* read through config file, looking for key words.
*/
-void
-read_config()
+static void
+read_config(void)
{
FILE *cfp;
char lbuf[BUFSIZ], f1[40], f2[40], f3[40], f4[40], f5[40];
while (fgets(lbuf, sizeof(lbuf), cfp))
switch (*lbuf) {
case 'b': /* badtty */
- if (sscanf(lbuf, "%s%s", f1, f2) != 2 ||
+ if (sscanf(lbuf, "%39s%39s", f1, f2) != 2 ||
strcasecmp(f1, "badtty"))
break;
c_tty(f2);
break;
case 'g': /* game */
- if (sscanf(lbuf, "%s%s%s%s%s",
+ if (sscanf(lbuf, "%39s%39s%39s%39s%39s",
f1, f2, f3, f4, f5) != 5 || strcasecmp(f1, "game"))
break;
c_game(f2, f3, f4, f5);
break;
case 't': /* time */
- if (sscanf(lbuf, "%s%s%s%s", f1, f2, f3, f4) != 4 ||
+ if (sscanf(lbuf, "%39s%39s%39s%39s", f1, f2, f3, f4) != 4 ||
strcasecmp(f1, "time"))
break;
c_day(f2, f3, f4);
* c_day --
* if day is today, see if okay to play
*/
-void
-c_day(s_day, s_start, s_stop)
- const char *s_day, *s_start, *s_stop;
+static void
+c_day(const char *s_day, const char *s_start, const char *s_stop)
{
static const char *const days[] = {
"sunday", "monday", "tuesday", "wednesday",
ct = localtime(&now);
if (strcasecmp(s_day, days[ct->tm_wday]))
return;
- if (!isdigit(*s_start) || !isdigit(*s_stop))
+ if (!isdigit((unsigned char)*s_start) ||
+ !isdigit((unsigned char)*s_stop))
return;
start = atoi(s_start);
stop = atoi(s_stop);
* c_tty --
* decide if this tty can be used for games.
*/
-void
-c_tty(tty)
- const char *tty;
+static void
+c_tty(const char *tty)
{
static int first = 1;
static char *p_tty;
* c_game --
* see if game can be played now.
*/
-void
-c_game(s_game, s_load, s_users, s_priority)
- const char *s_game, *s_load, *s_users, *s_priority;
+static void
+c_game(const char *s_game, const char *s_load, const char *s_users,
+ const char *s_priority)
{
static int found;
if (strcmp(game, s_game) && strcasecmp("default", s_game))
return;
++found;
- if (isdigit(*s_load) && atoi(s_load) < load())
+ if (isdigit((unsigned char)*s_load) && atoi(s_load) < load())
errx(0, "Sorry, the load average is too high right now.");
- if (isdigit(*s_users) && atoi(s_users) <= users())
+ if (isdigit((unsigned char)*s_users) && atoi(s_users) <= users())
errx(0, "Sorry, there are too many users logged on right now.");
- if (isdigit(*s_priority))
+ if (isdigit((unsigned char)*s_priority))
priority = atoi(s_priority);
}
* load --
* return 15 minute load average
*/
-double
-load()
+static double
+load(void)
{
double avenrun[3];
if (getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0])) < 0)
- err(1, "getloadavg() failed.");
+ err(1, "getloadavg() failed");
return (avenrun[2]);
}
* todo: check idle time; if idle more than X minutes, don't
* count them.
*/
-int
-users()
+static int
+users(void)
{
-
- int nusers, utmp;
- struct utmp buf;
-
- if ((utmp = open(_PATH_UTMP, O_RDONLY, 0)) < 0)
- err(1, "%s", _PATH_UTMP);
- for (nusers = 0; read(utmp, (char *)&buf, sizeof(struct utmp)) > 0;)
- if (buf.ut_name[0] != '\0')
- ++nusers;
- return (nusers);
+ struct utmpentry *ep;
+ int nusers;
+
+ nusers = getutentries(NULL, &ep);
+ return nusers;
}
-void
-nogamefile()
+static void
+nogamefile(void)
{
int fd, n;
char buf[BUFSIZ];
* hour --
* print out the hour in human form
*/
-const char *
-hour(h)
- int h;
+static const char *
+hour(int h)
{
static const char *const hours[] = {
"midnight", "1am", "2am", "3am", "4am", "5am",
* logfile --
* log play of game
*/
-logfile()
+static void
+logfile(void)
{
struct passwd *pw;
FILE *lp;
(void)fclose(lp);
return;
}
- sleep((u_int)1);
+ sleep(1);
}
if (pw = getpwuid(uid = getuid()))
fputs(pw->pw_name, lp);
else
fprintf(lp, "%u", uid);
fprintf(lp, "\t%s\t%s\t%s", game, gametty, ctime(&now));
- (void)fclose(lp);
(void)flock(fileno(lp), LOCK_UN);
+ (void)fclose(lp);
}
}
#endif /* LOG */