BSD 4.4 Lite usr.sbin Sources

6 files changed, 524 insertions, 0 deletions

diff --git a/usr.sbin/kvm_mkdb/Makefile b/usr.sbin/kvm_mkdb/Makefile
new file mode 100644
index 0000000..ea2b883
--- /dev/null
+++ b/usr.sbin/kvm_mkdb/Makefile
@@ -0,0 +1,7 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	kvm_mkdb
+SRCS=	kvm_mkdb.c nlist.c testdb.c
+MAN8=	kvm_mkdb.0
+
+.include <bsd.prog.mk>
diff --git a/usr.sbin/kvm_mkdb/extern.h b/usr.sbin/kvm_mkdb/extern.h
new file mode 100644
index 0000000..6d72268
--- /dev/null
+++ b/usr.sbin/kvm_mkdb/extern.h
@@ -0,0 +1,38 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  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. 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
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ *	@(#)extern.h	8.1 (Berkeley) 6/6/93
+ */
+
+void	create_knlist __P((char *, DB *));
+void	error __P((char *));
+int	testdb __P(());
diff --git a/usr.sbin/kvm_mkdb/kvm_mkdb.8 b/usr.sbin/kvm_mkdb/kvm_mkdb.8
new file mode 100644
index 0000000..d9dcbf9
--- /dev/null
+++ b/usr.sbin/kvm_mkdb/kvm_mkdb.8
@@ -0,0 +1,69 @@
+.\" Copyright (c) 1989, 1991, 1993
+.\"	The Regents of the University of California.  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. 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
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+.\"
+.\"     @(#)kvm_mkdb.8	8.1 (Berkeley) 6/9/93
+.\"
+.Dd June 9, 1993
+.Dt KVM_MKDB 8
+.Os
+.Sh NAME
+.Nm kvm_mkdb
+.Nd create kernel database
+.Sh SYNOPSIS
+.Nm kvm_mkdb
+.Op file
+.Sh DESCRIPTION
+.Nm Kvm_mkdb
+creates a database in
+.Pa /var/db
+containing information about the specified file.
+If no file is specified,
+.Pa /vmunix
+is used by default.
+The file is named ``kvm_filename.db'', where ``filename'' is the
+name of the file read.
+Various library routines consult this database.
+The only information currently stored is the kernel namelist, which is
+used by the
+.Xr kvm_nlist 3
+function, however, in the future the database may contain other static
+information about the current system.
+.Sh FILES
+.Bl -tag -width /var/db/kvm_vmunix.db -compact
+.It Pa /vmunix
+.It Pa /var/db/kvm_vmunix.db
+.El
+.Sh SEE ALSO
+.Xr kvm_nlist 3
+.Sh HISTORY
+The
+.Nm kvm_mkdb
+utility first appeared in 4.4BSD.
diff --git a/usr.sbin/kvm_mkdb/kvm_mkdb.c b/usr.sbin/kvm_mkdb/kvm_mkdb.c
new file mode 100644
index 0000000..f80b109
--- /dev/null
+++ b/usr.sbin/kvm_mkdb/kvm_mkdb.c
@@ -0,0 +1,111 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  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. 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
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1990, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)kvm_mkdb.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+
+#include <db.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <paths.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "extern.h"
+
+static void usage __P((void));
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	DB *db;
+	int ch;
+	char *p, *nlistpath, *nlistname, dbtemp[MAXPATHLEN], dbname[MAXPATHLEN];
+
+	while ((ch = getopt(argc, argv, "")) != EOF)
+		switch (ch) {
+		case '?':
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	if (argc > 1)
+		usage();
+
+	/* If the existing db file matches the currently running kernel, exit */
+	if (testdb())
+		exit(0);
+
+#define	basename(cp)	((p = rindex((cp), '/')) != NULL ? p + 1 : (cp))
+	nlistpath = argc > 0 ? argv[0] : _PATH_UNIX;
+	nlistname = basename(nlistpath);
+
+	(void)snprintf(dbtemp, sizeof(dbtemp), "%skvm_%s.tmp",
+	    _PATH_VARDB, nlistname);
+	(void)snprintf(dbname, sizeof(dbname), "%skvm_%s.db",
+	    _PATH_VARDB, nlistname);
+	(void)umask(0);
+	db = dbopen(dbtemp, O_CREAT | O_EXLOCK | O_TRUNC | O_RDWR,
+	    S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, DB_HASH, NULL);
+	if (db == NULL)
+		err(1, "%s", dbtemp);
+	create_knlist(nlistpath, db);
+	if (db->close(db))
+		err(1, "%s", dbtemp);
+	if (rename(dbtemp, dbname))
+		err(1, "rename %s to %s", dbtemp, dbname);
+	exit(0);
+}
+
+void
+usage()
+{
+	(void)fprintf(stderr, "usage: kvm_mkdb [file]\n");
+	exit(1);
+}
diff --git a/usr.sbin/kvm_mkdb/nlist.c b/usr.sbin/kvm_mkdb/nlist.c
new file mode 100644
index 0000000..ad31a1a
--- /dev/null
+++ b/usr.sbin/kvm_mkdb/nlist.c
@@ -0,0 +1,186 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  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. 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
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)nlist.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/param.h>
+
+#include <a.out.h>
+#include <db.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <kvm.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "extern.h"
+
+typedef struct nlist NLIST;
+#define	_strx	n_un.n_strx
+#define	_name	n_un.n_name
+
+#define	badfmt(str)	errx(1, "%s: %s: %s", kfile, str, strerror(EFTYPE))
+
+static void badread __P((int, char *));
+
+static char *kfile;
+
+void
+create_knlist(name, db)
+	char *name;
+	DB *db;
+{
+	register int nsyms;
+	struct exec ebuf;
+	FILE *fp;
+	NLIST nbuf;
+	DBT data, key;
+	int fd, nr, strsize;
+	char *strtab, buf[1024];
+
+	kfile = name;
+	if ((fd = open(name, O_RDONLY, 0)) < 0)
+		err(1, "%s", name);
+
+	/* Read in exec structure. */
+	nr = read(fd, &ebuf, sizeof(struct exec));
+	if (nr != sizeof(struct exec))
+		badfmt("no exec header");
+
+	/* Check magic number and symbol count. */
+	if (N_BADMAG(ebuf))
+		badfmt("bad magic number");
+	if (!ebuf.a_syms)
+		badfmt("stripped");
+
+	/* Seek to string table. */
+	if (lseek(fd, N_STROFF(ebuf), SEEK_SET) == -1)
+		badfmt("corrupted string table");
+
+	/* Read in the size of the symbol table. */
+	nr = read(fd, (char *)&strsize, sizeof(strsize));
+	if (nr != sizeof(strsize))
+		badread(nr, "no symbol table");
+
+	/* Read in the string table. */
+	strsize -= sizeof(strsize);
+	if (!(strtab = malloc(strsize)))
+		err(1, NULL);
+	if ((nr = read(fd, strtab, strsize)) != strsize)
+		badread(nr, "corrupted symbol table");
+
+	/* Seek to symbol table. */
+	if (!(fp = fdopen(fd, "r")))
+		err(1, "%s", name);
+	if (fseek(fp, N_SYMOFF(ebuf), SEEK_SET) == -1)
+		err(1, "%s", name);
+	
+	data.data = (u_char *)&nbuf;
+	data.size = sizeof(NLIST);
+
+	/* Read each symbol and enter it into the database. */
+	nsyms = ebuf.a_syms / sizeof(struct nlist);
+	while (nsyms--) {
+		if (fread((char *)&nbuf, sizeof (NLIST), 1, fp) != 1) {
+			if (feof(fp))
+				badfmt("corrupted symbol table");
+			err(1, "%s", name);
+		}
+		if (!nbuf._strx || nbuf.n_type&N_STAB)
+			continue;
+
+		key.data = (u_char *)strtab + nbuf._strx - sizeof(long);
+		key.size = strlen((char *)key.data);
+		if (db->put(db, &key, &data, 0))
+			err(1, "record enter");
+
+		if (strcmp((char *)key.data, VRS_SYM) == 0) {
+			long cur_off, voff;
+#ifndef KERNTEXTOFF
+#define KERNTEXTOFF KERNBASE
+#endif
+			/*
+			 * Calculate offset relative to a normal (non-kernel)
+			 * a.out.  KERNTEXTOFF is where the kernel is really
+			 * loaded; N_TXTADDR is where a normal file is loaded.
+			 * From there, locate file offset in text or data.
+			 */
+			voff = nbuf.n_value - KERNTEXTOFF + N_TXTADDR(ebuf);
+			if ((nbuf.n_type & N_TYPE) == N_TEXT)
+				voff += N_TXTOFF(ebuf) - N_TXTADDR(ebuf);
+			else
+				voff += N_DATOFF(ebuf) - N_DATADDR(ebuf);
+			cur_off = ftell(fp);
+			if (fseek(fp, voff, SEEK_SET) == -1)
+				badfmt("corrupted string table");
+
+			/*
+			 * Read version string up to, and including newline.
+			 * This code assumes that a newline terminates the
+			 * version line.
+			 */
+			if (fgets(buf, sizeof(buf), fp) == NULL)
+				badfmt("corrupted string table");
+
+			key.data = (u_char *)VRS_KEY;
+			key.size = sizeof(VRS_KEY) - 1;
+			data.data = (u_char *)buf;
+			data.size = strlen(buf);
+			if (db->put(db, &key, &data, 0))
+				err(1, "record enter");
+
+			/* Restore to original values. */
+			data.data = (u_char *)&nbuf;
+			data.size = sizeof(NLIST);
+			if (fseek(fp, cur_off, SEEK_SET) == -1)
+				badfmt("corrupted string table");
+		}
+	}
+	(void)fclose(fp);
+}
+
+static void
+badread(nr, p)
+	int nr;
+	char *p;
+{
+	if (nr < 0)
+		err(1, "%s", kfile);
+	badfmt(p);
+}
diff --git a/usr.sbin/kvm_mkdb/testdb.c b/usr.sbin/kvm_mkdb/testdb.c
new file mode 100644
index 0000000..f4f3bf0
--- /dev/null
+++ b/usr.sbin/kvm_mkdb/testdb.c
@@ -0,0 +1,113 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  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. 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
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)testdb.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/file.h>
+#include <errno.h>
+#include <limits.h>
+#include <kvm.h>
+#include <db.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <paths.h>
+
+#include "extern.h"
+
+/* Return true if the db file is valid, else false */
+int
+testdb()
+{
+	register DB *db;
+	register int cc, kd, ret, dbversionlen;
+	register char *cp, *uf;
+	DBT rec;
+	struct nlist nitem;
+	char dbname[MAXPATHLEN], dbversion[_POSIX2_LINE_MAX];
+	char kversion[_POSIX2_LINE_MAX];
+
+	ret = 0;
+	db = NULL;
+
+	if ((kd = open(_PATH_KMEM, O_RDONLY, 0)) < 0)
+		goto close;
+
+	uf = _PATH_UNIX;
+	if ((cp = rindex(uf, '/')) != 0)
+		uf = cp + 1;
+	(void) snprintf(dbname, sizeof(dbname), "%skvm_%s.db", _PATH_VARDB, uf);
+	if ((db = dbopen(dbname, O_RDONLY, 0, DB_HASH, NULL)) == NULL)
+		goto close;
+
+	/* Read the version out of the database */
+	rec.data = VRS_KEY;
+	rec.size = sizeof(VRS_KEY) - 1;
+	if ((db->get)(db, &rec, &rec, 0))
+		goto close;
+	if (rec.data == 0 || rec.size > sizeof(dbversion))
+		goto close;
+	bcopy(rec.data, dbversion, rec.size);
+	dbversionlen = rec.size;
+
+	/* Read version string from kernel memory */
+	rec.data = VRS_SYM;
+	rec.size = sizeof(VRS_SYM) - 1;
+	if ((db->get)(db, &rec, &rec, 0))
+		goto close;
+	if (rec.data == 0 || rec.size != sizeof(struct nlist))
+		goto close;
+	bcopy(rec.data, &nitem, sizeof(nitem));
+	/*
+	 * Theoretically possible for lseek to be seeking to -1.  Not
+	 * that it's something to lie awake nights about, however.
+	 */
+	errno = 0;
+	if (lseek(kd, (off_t)nitem.n_value, SEEK_SET) == -1 && errno != 0)
+		goto close;
+	cc = read(kd, kversion, sizeof(kversion));
+	if (cc < 0 || cc != sizeof(kversion))
+		goto close;
+
+	/* If they match, we win */
+	ret = bcmp(dbversion, kversion, dbversionlen) == 0;
+
+close:	if (kd >= 0)
+		(void)close(kd);
+	if (db)
+		(void)(db->close)(db);
+	return (ret);
+}