lambd, shutdown switch monitoring daemon for Wildlab LAMB

1 files changed, 181 insertions, 0 deletions

diff --git a/sysutils/lambd/files/lambd.c b/sysutils/lambd/files/lambd.c
new file mode 100644
index 00000000000..bb11c07426c
--- /dev/null
+++ b/sysutils/lambd/files/lambd.c
@@ -0,0 +1,181 @@
+/*	$NetBSD: lambd.c,v 1.1.1.1 2001/07/13 21:56:02 itojun Exp $	*/
+
+/*
+ * Copyright (C) 2001 WIDE Project.  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 project 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 PROJECT 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 PROJECT 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.
+ */
+
+#include <sys/types.h>
+#include <machine/sysarch.h>
+#include <machine/pio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <err.h>
+
+#define BASEPORT	(0x378)
+
+int main __P((int, char **));
+void usage __P((void));
+void mainloop __P((unsigned long));
+int monitor __P((void));
+void led __P((int));
+
+int foreground = 0;
+int debug = 0;
+
+int
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	int ch;
+	unsigned long delay;
+	char *p, *ep;
+	unsigned long ioperm[1024 / sizeof(unsigned long) / 8];
+	int i, off, bit;
+
+	while ((ch = getopt(argc, argv, "df")) != -1) {
+		switch (ch) {
+		case 'd':
+			debug++;
+			break;
+		case 'f':
+			foreground++;
+			break;
+		default:
+			usage();
+			exit(1);
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	switch (argc) {
+	case 0:
+		delay = 1 * 1000000;
+		break;
+	case 1:
+		p = *argv;
+		ep = NULL;
+		delay = strtoul(*argv, &ep, 10);
+		if (ep && !*ep)
+			break;
+		/* FALLTHROUGH */
+	default:
+		usage();
+		exit(1);
+	}
+
+	if (i386_get_ioperm(ioperm) < 0) {
+		err(1, "i386_get_ioperm");
+		/* NOTREACHED */
+	}
+	for (i = 0; i < 3; i++) {
+		off = (BASEPORT + i);
+		bit = off % (sizeof(ioperm[0]) * 8);
+		off /= (sizeof(ioperm[0]) * 8);
+		ioperm[off] &= ~(1 << bit);
+	}
+	if (i386_set_ioperm(ioperm) < 0) {
+		err(1, "i386_set_ioperm");
+		/* NOTREACHED */
+	}
+
+	if (!foreground)
+		daemon(0, 0);
+
+	if (debug)
+		fprintf(stderr, "delay=%lu\n", delay);
+	mainloop(delay);
+	/* NOTREACHED */
+
+	exit(0);	/* silent gcc */
+}
+
+void
+usage()
+{
+	fprintf(stderr, "usage: lambd [-f] [usec]\n");
+}
+
+void
+mainloop(delay)
+	unsigned long delay;
+{
+	unsigned int sec;
+
+	delay /= 2;
+	sec = delay / 1000000;
+	delay %= 1000000;
+
+	led(0);
+	while (1) {
+		if (monitor())
+			break;
+		led(1);
+		if (sec)
+			sleep(sec);
+		usleep(delay);
+
+		if (monitor())
+			break;
+		led(0);
+		if (sec)
+			sleep(sec);
+		usleep(delay);
+	}
+
+	led(0);
+	if (debug) {
+		fprintf(stderr, "shutdown -h now\n");
+		exit(0);
+	} else {
+		execl("/sbin/shutdown", "shutdown", "-h", "now", NULL);
+		/* NOTREACHED */
+	}
+}
+
+/* returns 1 if shutdown button is pressed */
+int
+monitor()
+{
+	if ((inb(BASEPORT + 1) & 0x20) == 0)
+		return 1;
+	else
+		return 0;
+}
+
+void
+led(on)
+	int on;
+{
+
+	if (debug)
+		fprintf(stderr, "led=%d\n", on);
+	outb(BASEPORT + 2, on ? 8 : 0);
+}