Make this compile on FreeBSD. Sort out VCS tags, fix warnings.

10 files changed, 502 insertions, 21 deletions

diff --git a/usr.bin/sort/append.c b/usr.bin/sort/append.c
index d24b9fe..a486361 100644
--- a/usr.bin/sort/append.c
+++ b/usr.bin/sort/append.c
@@ -39,10 +39,15 @@
 #include "sort.h"
 
 #ifndef lint
+#if 0
 __RCSID("$NetBSD: append.c,v 1.9 2001/01/18 20:59:43 jdolecek Exp $");
 __SCCSID("@(#)append.c	8.1 (Berkeley) 6/6/93");
+#endif
 #endif /* not lint */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <stdlib.h>
 #include <string.h>
 
diff --git a/usr.bin/sort/extern.h b/usr.bin/sort/extern.h
index cdfb9fe..6af2e03 100644
--- a/usr.bin/sort/extern.h
+++ b/usr.bin/sort/extern.h
@@ -36,12 +36,13 @@
  * SUCH DAMAGE.
  *
  *	@(#)extern.h	8.1 (Berkeley) 6/6/93
+ * $FreeBSD$
  */
 
 void	 append  __P((const u_char **, int, int, FILE *,
 	    void (*)(const RECHEADER *, FILE *), struct field *));
 void	 concat __P((FILE *, FILE *));
-length_t enterkey __P((RECHEADER *, DBT *, int, struct field *));
+length_t enterkey __P((RECHEADER *, DBT *, size_t, struct field *));
 void	 fixit __P((int *, char **));
 void	 fldreset __P((struct field *));
 FILE	*ftmp __P((void));
diff --git a/usr.bin/sort/fields.c b/usr.bin/sort/fields.c
index 175b87f..73c54f0 100644
--- a/usr.bin/sort/fields.c
+++ b/usr.bin/sort/fields.c
@@ -41,10 +41,15 @@
 #include "sort.h"
 
 #ifndef lint
+#if 0
 __RCSID("$NetBSD: fields.c,v 1.9 2001/02/19 19:52:27 jdolecek Exp $");
 __SCCSID("@(#)fields.c	8.1 (Berkeley) 6/6/93");
+#endif
 #endif /* not lint */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #define blancmange(ptr) {					\
 	if (BLANK & d_mask[*(ptr)])				\
 		while (BLANK & d_mask[*(++(ptr))]);		\
@@ -78,7 +83,7 @@ length_t
 enterkey(keybuf, line, size, fieldtable)
 	RECHEADER *keybuf;	/* pointer to start of key */
 	DBT *line;
-	int size;
+	size_t size;
 	struct field fieldtable[];
 {
 	int i;
diff --git a/usr.bin/sort/files.c b/usr.bin/sort/files.c
index f53d456..fbd6aa2 100644
--- a/usr.bin/sort/files.c
+++ b/usr.bin/sort/files.c
@@ -40,10 +40,15 @@
 #include "fsort.h"
 
 #ifndef lint
+#if 0
 __RCSID("$NetBSD: files.c,v 1.16 2001/02/19 20:50:17 jdolecek Exp $");
 __SCCSID("@(#)files.c	8.1 (Berkeley) 6/6/93");
+#endif
 #endif /* not lint */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <string.h>
 
 static int	seq __P((FILE *, DBT *, DBT *));
@@ -55,11 +60,11 @@ static int	seq __P((FILE *, DBT *, DBT *));
 int
 getnext(binno, infl0, filelist, nfiles, pos, end, dummy)
 	int binno, infl0;
-	struct filelist *filelist;
+	struct filelist *filelist __unused;
 	int nfiles;
 	RECHEADER *pos;
 	u_char *end;
-	struct field *dummy;
+	struct field *dummy __unused;
 {
 	int i;
 	u_char *hp;
@@ -107,7 +112,7 @@ getnext(binno, infl0, filelist, nfiles, pos, end, dummy)
 	if ((u_char *) pos > end - sizeof(TRECHEADER))
 		return (BUFFEND);
 	fread(pos, sizeof(TRECHEADER), 1, fp);
-	if (end - pos->data < pos->length) {
+	if ((length_t)(end - pos->data) < pos->length) {
 		hp = ((u_char *)pos) + sizeof(TRECHEADER);
 		for (i = sizeof(TRECHEADER); i ;  i--)
 			ungetc(*--hp, fp);
@@ -126,12 +131,12 @@ getnext(binno, infl0, filelist, nfiles, pos, end, dummy)
  */
 int
 makeline(flno, top, filelist, nfiles, recbuf, bufend, dummy2)
-	int flno, top;
+	int flno, top __unused;
 	struct filelist *filelist;
 	int nfiles;
 	RECHEADER *recbuf;
 	u_char *bufend;
-	struct field *dummy2;
+	struct field *dummy2 __unused;
 {
 	static u_char *obufend;
 	static size_t osz;
@@ -213,7 +218,7 @@ makeline(flno, top, filelist, nfiles, recbuf, bufend, dummy2)
  */
 int
 makekey(flno, top, filelist, nfiles, recbuf, bufend, ftbl)
-	int flno, top;
+	int flno, top __unused;
 	struct filelist *filelist;
 	int nfiles;
 	RECHEADER *recbuf;
@@ -278,7 +283,7 @@ makekey(flno, top, filelist, nfiles, recbuf, bufend, ftbl)
 static int
 seq(fp, line, key)
 	FILE *fp;
-	DBT *key, *line;
+	DBT *key __unused, *line;
 {
 	static char *buf, flag = 1;
 	char *end, *pos;
@@ -344,12 +349,12 @@ putline(rec, fp)
  */
 int
 geteasy(flno, top, filelist, nfiles, rec, end, dummy2)
-	int flno, top;
-	struct filelist *filelist;
-	int nfiles;
+	int flno, top __unused;
+	struct filelist *filelist __unused;
+	int nfiles __unused;
 	RECHEADER *rec;
 	u_char *end;
-	struct field *dummy2;
+	struct field *dummy2 __unused;
 {
 	int i;
 	FILE *fp;
@@ -362,7 +367,7 @@ geteasy(flno, top, filelist, nfiles, rec, end, dummy2)
 		fstack[flno].fp = 0;
 		return (EOF);
 	}
-	if (end - rec->data < rec->length) {
+	if ((length_t)(end - rec->data) < rec->length) {
 		for (i = sizeof(TRECHEADER) - 1; i >= 0;  i--)
 			ungetc(*((char *) rec + i), fp);
 		return (BUFFEND);
diff --git a/usr.bin/sort/fsort.c b/usr.bin/sort/fsort.c
index a38c79d..eb9302a 100644
--- a/usr.bin/sort/fsort.c
+++ b/usr.bin/sort/fsort.c
@@ -47,10 +47,15 @@
 #include "fsort.h"
 
 #ifndef lint
+#if 0
 __RCSID("$NetBSD: fsort.c,v 1.19 2001/05/15 11:19:45 jdolecek Exp $");
 __SCCSID("@(#)fsort.c	8.1 (Berkeley) 6/6/93");
+#endif
 #endif /* not lint */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <stdlib.h>
 #include <string.h>
 
diff --git a/usr.bin/sort/init.c b/usr.bin/sort/init.c
index 8b965b1..9bcc1d2 100644
--- a/usr.bin/sort/init.c
+++ b/usr.bin/sort/init.c
@@ -39,10 +39,15 @@
 #include "sort.h"
 
 #ifndef lint
+#if 0
 __RCSID("$NetBSD: init.c,v 1.5 2001/02/19 20:50:17 jdolecek Exp $");
 __SCCSID("@(#)init.c	8.1 (Berkeley) 6/6/93");
+#endif
 #endif /* not lint */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <ctype.h>
 #include <string.h>
 
@@ -121,7 +126,7 @@ static const char *
 setcolumn(pos, cur_fld, gflag)
 	const char *pos;
 	struct field *cur_fld;
-	int gflag;
+	int gflag __unused;
 {
 	struct column *col;
 	int tmp;
diff --git a/usr.bin/sort/msort.c b/usr.bin/sort/msort.c
index f66db0b..8a90944 100644
--- a/usr.bin/sort/msort.c
+++ b/usr.bin/sort/msort.c
@@ -40,10 +40,15 @@
 #include "fsort.h"
 
 #ifndef lint
+#if 0
 __RCSID("$NetBSD: msort.c,v 1.9 2001/01/19 10:50:31 jdolecek Exp $");
 __SCCSID("@(#)msort.c	8.1 (Berkeley) 6/6/93");
+#endif
 #endif /* not lint */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
diff --git a/usr.bin/sort/sort.1 b/usr.bin/sort/sort.1
index 5873eb0..d6c6e6c 100644
--- a/usr.bin/sort/sort.1
+++ b/usr.bin/sort/sort.1
@@ -1 +1,442 @@
-$FreeBSD$
+.\"	$NetBSD: sort.1,v 1.17 2001/12/08 19:16:07 wiz Exp $
+.\"
+.\" Copyright (c) 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the Institute of Electrical and Electronics Engineers, Inc.
+.\"
+.\" 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.
+.\"
+.\"     @(#)sort.1	8.1 (Berkeley) 6/6/93
+.\" $FreeBSD$
+.\"
+.Dd January 13, 2001
+.Dt SORT 1
+.Os
+.Sh NAME
+.Nm sort
+.Nd sort or merge text files
+.Sh SYNOPSIS
+.Nm sort
+.Op Fl cmubdfHinrsS
+.Op Fl t Ar char
+.Op Fl R Ar char
+.Oo
+.Fl k
+.Ar field1 Ns Op Li \&, Ns Ar field2
+.Oc
+.Op Fl T Ar dir
+.Op Fl o Ar output
+.Op Ar
+.Sh DESCRIPTION
+The
+.Nm
+utility sorts text files by lines.
+Comparisons are based on one or more sort keys extracted
+from each line of input, and are performed lexicographically.
+By default, if keys are not given,
+.Nm
+regards each input line as a single field.
+.Pp
+The following options are available:
+.Bl -tag -width Fl
+.It Fl c
+Check that the single input file is sorted.
+If the file is not sorted,
+.Nm
+produces the appropriate error messages and exits with code 1; otherwise,
+.Nm
+returns 0.
+.Nm
+.Fl c
+produces no output.
+.It Fl m
+Merge only; the input files are assumed to be pre-sorted.
+.It Fl o Ar output
+The argument given is the name of an
+.Ar output
+file to be used instead of the standard output.
+This file can be the same as one of the input files.
+.It Fl T Ar dir
+Use
+.Ar dir
+as the directory for temporary files.
+The default is the value specified in the environment variable
+.Ev TMPDIR or
+.Pa /tmp
+if
+.Ev TMPDIR
+is not defined.
+.It Fl u
+Unique: suppress all but one in each set of lines having equal keys.
+If used with the
+.Fl c
+option, check that there are no lines with duplicate keys.
+.El
+.Pp
+The following options override the default ordering rules.
+When ordering options appear independent of key field
+specifications, the requested field ordering rules are
+applied globally to all sort keys.
+When attached to a specific key (see
+.Fl k ) ,
+the ordering options override
+all global ordering options for that key.
+.Bl -tag -width Fl
+.It Fl d
+Only blank space and alphanumeric characters
+.\" according
+.\" to the current setting of LC_CTYPE
+are used
+in making comparisons.
+.It Fl f
+Considers all lowercase characters that have uppercase
+equivalents to be the same for purposes of comparison.
+.It Fl i
+Ignore all non-printable characters.
+.It Fl n
+An initial numeric string, consisting of optional blank space, optional
+minus sign, and zero or more digits (including decimal point)
+.\" with
+.\" optional radix character and thousands
+.\" separator
+.\" (as defined in the current locale),
+is sorted by arithmetic value.
+(The
+.Fl n
+option no longer implies the
+.Fl b
+option.)
+.It Fl r
+Reverse the sense of comparisons.
+.It Fl S
+Don't use stable sort.
+Default is to use stable sort.
+.It Fl s
+Use stable sort.
+This is the default.
+Provided for compatiblity with other
+.Nm
+implementations only.
+.It Fl H
+Use a merge sort instead of a radix sort.
+This option should be used for files larger than 60Mb.
+.El
+.Pp
+The treatment of field separators can be altered using these options:
+.Bl -tag -width Fl
+.It Fl b
+Ignores leading blank space when determining the start
+and end of a restricted sort key.
+A
+.Fl b
+option specified before the first
+.Fl k
+option applies globally to all
+.Fl k
+options.
+Otherwise, the
+.Fl b
+option can be attached independently to each
+.Ar field
+argument of the
+.Fl k
+option (see below).
+Note that the
+.Fl b
+option has no effect unless key fields are specified.
+.It Fl t Ar char
+.Ar char
+is used as the field separator character.
+The initial
+.Ar char
+is not considered to be part of a field when determining
+key offsets (see below).
+Each occurrence of
+.Ar char
+is significant (for example,
+.Dq Ar charchar
+delimits an empty field).
+If
+.Fl t
+is not specified, the default field separator is a sequence of
+blank-space characters, and consecutive blank spaces do
+.Em not
+delimit an empty field; further, the initial blank space
+.Em is
+considered part of a field when determining key offsets.
+.It Fl R Ar char
+.Ar char
+is used as the record separator character.
+This should be used with discretion;
+.Fl R Ar \*[Lt]alphanumeric\*[Gt]
+usually produces undesirable results.
+The default record separator is newline.
+.It Xo
+.Fl k
+.Ar field1 Ns Op Li \&, Ns Ar field2
+.Xc
+Designates the starting position,
+.Ar field1 ,
+and optional ending position,
+.Ar field2 ,
+of a key field.
+The
+.Fl k
+option replaces the obsolescent options
+.Cm \(pl Ns Ar pos1
+and
+.Fl Ns Ar pos2 .
+.El
+.Pp
+The following operands are available:
+.Bl -tag -width Ar
+.It Ar file
+The pathname of a file to be sorted, merged, or checked.
+If no
+.Ar file
+operands are specified, or if
+a
+.Ar file
+operand is
+.Fl ,
+the standard input is used.
+.El
+.Pp
+A field is defined as a minimal sequence of characters followed by a
+field separator or a newline character.
+By default, the first
+blank space of a sequence of blank spaces acts as the field separator.
+All blank spaces in a sequence of blank spaces are considered
+as part of the next field; for example, all blank spaces at
+the beginning of a line are considered to be part of the
+first field.
+.Pp
+Fields are specified
+by the
+.Fl k
+.Ar field1 Ns Op \&, Ns Ar field2
+argument.
+A missing
+.Ar field2
+argument defaults to the end of a line.
+.Pp
+The arguments
+.Ar field1
+and
+.Ar field2
+have the form
+.Ar m Ns Li \&. Ns Ar n
+and can be followed by one or more of the letters
+.Cm b , d , f , i ,
+.Cm n ,
+and
+.Cm r ,
+which correspond to the options discussed above.
+A
+.Ar field1
+position specified by
+.Ar m Ns Li \&. Ns Ar n
+.Pq Ar m , n No \*[Gt] 0
+is interpreted as the
+.Ar n Ns th
+character in the
+.Ar m Ns th
+field.
+A missing
+.Li \&. Ns Ar n
+in
+.Ar field1
+means
+.Ql \&.1 ,
+indicating the first character of the
+.Ar m Ns th
+field; if the
+.Fl b
+option is in effect,
+.Ar n
+is counted from the first non-blank character in the
+.Ar m Ns th
+field;
+.Ar m Ns Li \&.1b
+refers to the first non-blank character in the
+.Ar m Ns th
+field.
+.Pp
+A
+.Ar field2
+position specified by
+.Ar m Ns Li \&. Ns Ar n
+is interpreted as
+the
+.Ar n Ns th
+character (including separators) of the
+.Ar m Ns th
+field.
+A missing
+.Li \&. Ns Ar n
+indicates the last character of the
+.Ar m Ns th
+field;
+.Ar m
+= \&0
+designates the end of a line.
+Thus the option
+.Fl k
+.Sm off
+.Xo
+.Ar v Li \&. Ar x Li \&,
+.Ar w Li \&. Ar y
+.Xc
+.Sm on
+is synonymous with the obsolescent option
+.Sm off
+.Cm \(pl Ar v-\&1 Li \&. Ar x-\&1
+.Fl Ar w-\&1 Li \&. Ar y ;
+.Sm on
+when
+.Ar y
+is omitted,
+.Fl k
+.Sm off
+.Ar v Li \&. Ar x Li \&, Ar w
+.Sm on
+is synonymous with
+.Sm off
+.Cm \(pl Ar v-\&1 Li \&. Ar x-\&1
+.Fl Ar w+1 Li \&.0 .
+.Sm on
+The obsolescent
+.Cm \(pl Ns Ar pos1
+.Fl Ns Ar pos2
+option is still supported, except for
+.Fl Ns Ar w Ns Li \&.0b ,
+which has no
+.Fl k
+equivalent.
+.Sh RETURN VALUES
+Sort exits with one of the following values:
+.Bl -tag -width flag -compact
+.It 0
+Normal behavior.
+.It 1
+On disorder (or non-uniqueness) with the
+.Fl c
+option
+.It 2
+An error occurred.
+.El
+.Sh ENVIRONMENT
+If the following environment variable exists, it is utilized by
+.Nm "" .
+.Bl -tag -width Ev
+.It Ev TMPDIR
+.Nm
+uses the contents of the
+.Ev TMPDIR
+environment variable as the path in which to store
+temporary files.
+.El
+.Sh FILES
+.Bl -tag -width outputNUMBER+some -compact
+.It Pa /tmp/sort.*
+Default temporary files.
+.It Pa Ar output Ns NUMBER
+Temporary file which is used for output if
+.Ar output
+already exists.
+Once sorting is finished, this file replaces
+.Ar output
+(via
+.Xr link 2
+and
+.Xr unlink 2 ) .
+.El
+.Sh SEE ALSO
+.Xr comm 1 ,
+.Xr join 1 ,
+.Xr uniq 1 ,
+.Xr qsort 3 ,
+.Xr radixsort 3
+.Sh HISTORY
+A
+.Nm
+command appeared in
+.At v5 .
+This
+.Nm
+implementation appeared in
+.Bx 4.4
+and is used since
+.Nx 1.6 .
+.Sh BUGS
+To sort files larger than 60Mb, use
+.Nm
+.Fl H ;
+files larger than 704Mb must be sorted in smaller pieces, then merged.
+.Sh NOTES
+This
+.Nm
+has no limits on input line length (other than imposed by available
+memory) or any restrictions on bytes allowed within lines.
+.Pp
+To protect data
+.Nm
+.Fl o
+calls
+.Xr link 2
+and
+.Xr unlink 2 ,
+and thus fails on protected directories.
+.Pp
+Input files should be text files.
+If file doesn't end with record separator (which is typically newline), the
+.Nm
+utility silently supplies one.
+.Pp
+The current
+.Nm
+uses lexicographic radix sorting, which requires
+that sort keys be kept in memory (as opposed to previous versions which used quick
+and merge sorts and did not.)
+Thus performance depends highly on efficient choice of sort keys, and the
+.Fl b
+option and the
+.Ar field2
+argument of the
+.Fl k
+option should be used whenever possible.
+Similarly,
+.Nm
+.Fl k1f
+is equivalent to
+.Nm
+.Fl f
+and may take twice as long.
diff --git a/usr.bin/sort/sort.c b/usr.bin/sort/sort.c
index 57e2357..4c10233 100644
--- a/usr.bin/sort/sort.c
+++ b/usr.bin/sort/sort.c
@@ -46,15 +46,19 @@
 #include "pathnames.h"
 
 #ifndef lint
-__COPYRIGHT("@(#) Copyright (c) 1993\n\
-	The Regents of the University of California.  All rights reserved.\n");
+__COPYRIGHT("@(#) Copyright (c) 1993\nThe Regents of the University of California.  All rights reserved.\n");
 #endif /* not lint */
 
 #ifndef lint
+#if 0
 __RCSID("$NetBSD: sort.c,v 1.26 2001/04/30 00:25:09 ross Exp $");
 __SCCSID("@(#)sort.c	8.1 (Berkeley) 6/6/93");
+#endif
 #endif /* not lint */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/resource.h>
@@ -208,7 +212,7 @@ main(argc, argv)
 
 			/* change to /dev/stdin if '-' */
 			if (argv[i][0] == '-')
-				argv[i] = _PATH_STDIN;
+				argv[i] = strdup(_PATH_STDIN);
 
 		} else if ((ch = access(argv[i], R_OK)))
 			err(2, "%s", argv[i]);
@@ -252,7 +256,7 @@ main(argc, argv)
 	} else if (!(ch = access(outpath, 0)) &&
 	    strncmp(_PATH_DEV, outpath, 5)) {
 		static const struct sigaction act =
-		    { onsignal, {{0}}, SA_RESTART | SA_RESETHAND };
+		    { { onsignal }, SA_RESTART | SA_RESETHAND, { { 0 } } };
 		static const int sigtable[] = {SIGHUP, SIGINT, SIGPIPE,
 		    SIGXCPU, SIGXFSZ, SIGVTALRM, SIGPROF, 0};
 		int outfd;
@@ -295,7 +299,7 @@ main(argc, argv)
 
 static void
 onsignal(sig)
-	int sig;
+	int sig __unused;
 {
 	cleanup();
 }
diff --git a/usr.bin/sort/tmp.c b/usr.bin/sort/tmp.c
index 55ca383..2900f47 100644
--- a/usr.bin/sort/tmp.c
+++ b/usr.bin/sort/tmp.c
@@ -39,10 +39,15 @@
 #include <ctype.h>
 
 #ifndef lint
+#if 0
 __RCSID("$NetBSD: tmp.c,v 1.7 2001/02/19 15:45:45 jdolecek Exp $");
 __SCCSID("@(#)tmp.c	8.1 (Berkeley) 6/6/93");
+#endif
 #endif /* not lint */
 
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <sys/param.h>
 
 #include <err.h>