--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usr/src/cmd/fs.d/cachefs/cfstagchk/cfstagchk.c	Tue Jun 02 18:56:50 2009 +0900
@@ -0,0 +1,188 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"@(#)cfstagchk.c	1.7	05/06/08 SMI"
+
+/*
+ * -----------------------------------------------------------------
+ *
+ *			cfstagchk.c
+ *
+ * Cache FS admin utility.  Used to read and/or write a
+ * cache tag from/to the specified partition.
+ */
+
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdarg.h>
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/vtoc.h>
+
+void pr_err(char *fmt, ...);
+void usage(char *);
+
+/*
+ * -----------------------------------------------------------------
+ *
+ *			main
+ *
+ * Description:
+ *	Main routine for the cfstagchk program
+ * Arguments:
+ *	argc	number of command line arguments
+ *	argv	command line arguments
+ * Returns:
+ *	Returns 0 for failure, > 0 for an error.
+ * Preconditions:
+ */
+
+int
+main(int argc, char **argv)
+{
+	int c;
+	int which;
+
+	char *path;
+
+	int wflag;
+	int fd, err, slice;
+	struct vtoc vtoc;
+	struct partition *p;
+
+	/* verify root running command */
+	if (getuid() != 0) {
+		pr_err(gettext("must be run by root"));
+		return (1);
+	}
+
+	(void) setlocale(LC_ALL, "");
+#if !defined(TEXT_DOMAIN)
+#define	TEXT_DOMAIN	"SYS_TEST"
+#endif
+	(void) textdomain(TEXT_DOMAIN);
+
+	/* set defaults for command line options */
+	wflag = 0;
+
+	/* parse the command line arguments */
+	while ((c = getopt(argc, argv, "w")) != EOF) {
+		switch (c) {
+
+		case 'w':		/* write */
+			wflag = 1;
+			break;
+
+		default:
+			usage(gettext("illegal option"));
+			return (1);
+		}
+	}
+	argc -= optind;
+	argv += optind;
+	if (argc != 1) {
+		usage(gettext("must specify a single device"));
+		return (1);
+	}
+
+	fd = open(*argv, O_RDWR);
+	if (fd < 0) {
+		pr_err("can't open %s", *argv);
+		return (1);
+	}
+
+	slice = read_vtoc(fd, &vtoc);
+	if (slice < 0) {
+		pr_err(gettext("can't read vtoc"));
+		return (1);
+	}
+	p = &vtoc.v_part[slice];
+	if (!wflag) {
+		err = 0;
+		if (p->p_tag != V_CACHE)
+			err++;
+	} else {
+		p->p_tag = V_CACHE;
+		err = write_vtoc(fd, &vtoc);
+		if (err < 0)
+			pr_err(gettext("write_vtoc failure"));
+	}
+	return (err);
+}
+
+/*
+ * -----------------------------------------------------------------
+ *
+ *			usage
+ *
+ * Description:
+ *	Prints a usage message for this utility.
+ * Arguments:
+ *	msgp	message to include with the usage message
+ * Returns:
+ * Preconditions:
+ *	precond(msgp)
+ */
+
+void
+usage(char *msgp)
+{
+	fprintf(stderr, gettext("cfstagchk: %s\n"), msgp);
+	fprintf(stderr, gettext("usage: cfstagchk [-w] device\n"));
+}
+
+/*
+ * -----------------------------------------------------------------
+ *
+ *			pr_err
+ *
+ * Description:
+ *	Prints an error message to stderr.
+ * Arguments:
+ *	fmt	printf style format
+ *	...	arguments for fmt
+ * Returns:
+ * Preconditions:
+ *	precond(fmt)
+ */
+
+void
+pr_err(char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	(void) fprintf(stderr, gettext("cfstagchk: "));
+	(void) vfprintf(stderr, fmt, ap);
+	(void) fprintf(stderr, "\n");
+	va_end(ap);
+}