10 files changed, 890 insertions, 0 deletions

diff --git a/share/man/man4/pst.4 b/share/man/man4/pst.4
new file mode 100644
index 000000000000..6da90b87327d
--- /dev/null
+++ b/share/man/man4/pst.4
@@ -0,0 +1,63 @@
+.\"
+.\" Copyright (c) 2001,2002 Søren Schmidt
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd November 21, 2001
+.Dt PST 4
+.Os
+.Sh NAME
+.Nm pst
+.Nd Device driver for Promise Supertrak SX6000
+.Sh SYNOPSIS
+Include this line in the kernel config file:
+.Cd device pst
+.Pp
+.Sh DESCRIPTION
+This driver is for the Promise Supertrak SX6000 ATA hardware RAID controller.
+It supports (in hardware) RAID levels 0, 1, 0+1, 3, 5 and JBOD on up to 
+6 ATA disk drives, including automatic rebuild and hotswap, and supports 
+signalling disk status on LED's on Promise Superswap disk enclosures.
+The Supertrak lines of controllers does not support non-disk devices.
+.Pp
+.Sh NOTES
+The
+.Nm
+driver does not support manipulating the RAID from the OS, RAID's need
+to be setup from the onboard BIOS. However hot swap, hot spare, and
+automatic rebuilds are supported without reboot.
+.Pp
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Fx 4.7 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver and man page was written by
+.An S\(/oren Schmidt
+.Aq sos@FreeBSD.org .
diff --git a/sys/dev/aac/aac_linux.c b/sys/dev/aac/aac_linux.c
new file mode 100644
index 000000000000..2ca8fa349caf
--- /dev/null
+++ b/sys/dev/aac/aac_linux.c
@@ -0,0 +1,84 @@
+/*-
+ * Copyright (c) 2002 Scott Long
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ *	$FreeBSD$
+ */
+
+/*
+ * Linux ioctl handler for the aac device driver
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/conf.h>
+#include <sys/kernel.h>
+#include <sys/file.h>
+#include <sys/proc.h>
+#include <machine/../linux/linux.h>
+#include <machine/../linux/linux_proto.h>
+#include <compat/linux/linux_ioctl.h>
+
+/* There are multiple ioctl number ranges that need to be handled */
+#define AAC_LINUX_IOCTL_MIN  0x0000
+#define AAC_LINUX_IOCTL_MAX  0x21ff
+
+static linux_ioctl_function_t aac_linux_ioctl;
+static struct linux_ioctl_handler aac_linux_handler = {aac_linux_ioctl,
+						       AAC_LINUX_IOCTL_MIN,
+						       AAC_LINUX_IOCTL_MAX};
+
+SYSINIT  (aac_linux_register,   SI_SUB_KLD, SI_ORDER_MIDDLE,
+	  linux_ioctl_register_handler, &aac_linux_handler);
+SYSUNINIT(aac_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
+	  linux_ioctl_unregister_handler, &aac_linux_handler);
+
+static int
+aac_linux_modevent(module_t mod, int type, void *data)
+{
+	/* Do we care about any specific load/unload actions? */
+	return (0);
+}
+
+DEV_MODULE(aac_linux, aac_linux_modevent, NULL);
+MODULE_DEPEND(aac_linux, linux, 1, 1, 1);
+
+static int
+aac_linux_ioctl(struct thread *td, struct linux_ioctl_args *args)
+{
+	struct file *fp;
+	u_long cmd;
+	int error;
+
+	if ((error = fget(td, args->fd, &fp)) != 0)
+		return (error);
+	cmd = args->cmd;
+
+	/*
+	 * Pass the ioctl off to our standard handler.
+	 */
+	error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td));
+	fdrop(fp, td);
+	return (error);
+}
diff --git a/sys/modules/aac/aac_linux/Makefile b/sys/modules/aac/aac_linux/Makefile
new file mode 100644
index 000000000000..4247a2280878
--- /dev/null
+++ b/sys/modules/aac/aac_linux/Makefile
@@ -0,0 +1,8 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../../../dev/aac
+
+KMOD=	aac_linux
+SRCS=	aac_linux.c
+
+.include <bsd.kmod.mk>
diff --git a/sys/net/if_gre.h b/sys/net/if_gre.h
new file mode 100644
index 000000000000..a626ee7d95a7
--- /dev/null
+++ b/sys/net/if_gre.h
@@ -0,0 +1,165 @@
+/*	$NetBSD: if_gre.h,v 1.10 2002/02/24 17:22:20 martin Exp $ */
+/*	 $FreeBSD$ */
+
+/*
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Heiko W.Rupp <hwr@pilhuhn.de>
+ *
+ * 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 NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 _NET_IF_GRE_H
+#define _NET_IF_GRE_H
+
+#include <sys/ioccom.h>
+#ifdef _KERNEL
+#include <sys/queue.h>
+
+struct gre_softc {
+	struct ifnet sc_if;
+	LIST_ENTRY(gre_softc) sc_list;
+	int gre_unit;
+	int gre_flags;
+	struct in_addr g_src;	/* source address of gre packets */
+	struct in_addr g_dst;	/* destination address of gre packets */
+	struct route route;	/* routing entry that determines, where a
+				   encapsulated packet should go */
+	u_char g_proto;		/* protocol of encapsulator */
+
+	const struct encaptab *encap;	/* encapsulation cookie */
+
+	int called;		/* infinite recursion preventer */
+};	
+
+
+struct gre_h {
+	u_int16_t flags;	/* GRE flags */
+	u_int16_t ptype;	/* protocol type of payload typically 
+				   Ether protocol type*/
+/* 
+ *  from here on: fields are optional, presence indicated by flags 
+ *
+	u_int_16 checksum	checksum (one-complements of GRE header
+				and payload
+				Present if (ck_pres | rt_pres == 1).
+				Valid if (ck_pres == 1).
+	u_int_16 offset		offset from start of routing filed to
+				first octet of active SRE (see below).
+				Present if (ck_pres | rt_pres == 1).
+				Valid if (rt_pres == 1).
+	u_int_32 key		inserted by encapsulator e.g. for
+				authentication
+				Present if (key_pres ==1 ).
+	u_int_32 seq_num	Sequence number to allow for packet order
+				Present if (seq_pres ==1 ).
+	struct gre_sre[] routing Routing fileds (see below)
+				Present if (rt_pres == 1)
+ */
+} __packed;
+
+struct greip {
+	struct ip gi_i;
+	struct gre_h  gi_g;
+} __packed;
+
+#define gi_pr		gi_i.ip_p
+#define gi_len		gi_i.ip_len
+#define gi_src		gi_i.ip_src
+#define gi_dst		gi_i.ip_dst
+#define gi_ptype	gi_g.ptype
+#define gi_flags	gi_g.flags
+
+#define GRE_CP		0x8000  /* Checksum Present */
+#define GRE_RP		0x4000  /* Routing Present */
+#define GRE_KP		0x2000  /* Key Present */
+#define GRE_SP		0x1000  /* Sequence Present */
+#define GRE_SS		0x0800	/* Strict Source Route */
+
+/*
+ * gre_sre defines a Source route Entry. These are needed if packets
+ * should be routed over more than one tunnel hop by hop
+ */
+struct gre_sre {
+	u_int16_t sre_family;	/* adress family */
+	u_char	sre_offset;	/* offset to first octet of active entry */
+	u_char	sre_length;	/* number of octets in the SRE. 
+				   sre_lengthl==0 -> last entry. */
+	u_char	*sre_rtinfo;	/* the routing information */
+};
+
+struct greioctl {
+	int unit;
+	struct in_addr addr;
+};
+
+/* for mobile encaps */
+
+struct mobile_h {
+	u_int16_t proto;		/* protocol and S-bit */
+	u_int16_t hcrc;			/* header checksum */
+	u_int32_t odst;			/* original destination address */
+	u_int32_t osrc;			/* original source addr, if S-bit set */
+} __packed;
+
+struct mobip_h {
+	struct ip	mi;
+	struct mobile_h	mh;
+} __packed;
+
+
+#define MOB_H_SIZ_S		(sizeof(struct mobile_h) - sizeof(u_int32_t))
+#define MOB_H_SIZ_L		(sizeof(struct mobile_h))
+#define MOB_H_SBIT	0x0080
+
+#define	GRE_TTL	30
+
+#endif /* _KERNEL */
+
+/* 
+ * ioctls needed to manipulate the interface 
+ */
+
+#define GRESADDRS	_IOW('i', 101, struct ifreq)
+#define GRESADDRD	_IOW('i', 102, struct ifreq)   
+#define GREGADDRS	_IOWR('i', 103, struct ifreq)
+#define GREGADDRD	_IOWR('i', 104, struct ifreq)
+#define GRESPROTO	_IOW('i' , 105, struct ifreq)
+#define GREGPROTO	_IOWR('i', 106, struct ifreq)
+
+#ifdef _KERNEL
+LIST_HEAD(gre_softc_head, gre_softc);
+extern struct gre_softc_head gre_softc_list;
+
+u_short	gre_in_cksum(u_short *p, u_int len);
+#endif /* _KERNEL */
+
+#endif
diff --git a/usr.bin/getconf/Makefile b/usr.bin/getconf/Makefile
new file mode 100644
index 000000000000..275b4f25d66e
--- /dev/null
+++ b/usr.bin/getconf/Makefile
@@ -0,0 +1,36 @@
+#	$FreeBSD$
+
+PROG=	getconf
+
+SRCS=	confstr.c getconf.c limits.c pathconf.c progenv.c sysconf.c
+CFLAGS+= -I${.CURDIR}
+CLEANFILES+=	confstr.c limits.c pathconf.c progenv.c sysconf.c \
+		confstr.names limits.names pathconf.names sysconf.names \
+		conflicting.names unique.names
+
+.SUFFIXES: .gperf .names
+.PHONY: conflicts
+
+all:	conflicts
+
+.gperf.c:
+	awk -f ${.CURDIR}/fake-gperf.awk ${.IMPSRC} >${.TARGET}
+
+.gperf.names:
+	awk '/^[_A-Z]/ { print; }' ${.IMPSRC} | sed -e 's/,$$//' >${.TARGET}
+
+conflicts: conflicting.names unique.names
+	@if test `wc -l <conflicting.names` != `wc -l <unique.names`; then \
+		echo "Name conflicts found!" >&2; \
+		exit 1; \
+	fi
+
+# pathconf.names is not included here because pathconf names are
+# syntactically distinct from the other kinds.
+conflicting.names:	confstr.names limits.names sysconf.names
+	cat ${.ALLSRC} >${.TARGET}
+
+unique.names:		conflicting.names
+	sort -u ${.ALLSRC} >${.TARGET}
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/getconf/confstr.gperf b/usr.bin/getconf/confstr.gperf
new file mode 100644
index 000000000000..14ad5f2eb981
--- /dev/null
+++ b/usr.bin/getconf/confstr.gperf
@@ -0,0 +1,70 @@
+%{
+/*
+ * Copyright is disclaimed as to the contents of this file.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+
+#include <string.h>
+#include <unistd.h>
+
+#include "getconf.h"
+
+/*
+ * Override gperf's built-in external scope.
+ */
+static const struct map *in_word_set(const char *str, unsigned int len);
+
+/*
+ * The Standard seems a bit ambiguous over whether the POSIX_V6_*
+ * are specified with or without a leading underscore, so we just
+ * use both.
+ */
+%}
+struct map { const char *name; int key; int valid; };
+%%
+PATH, _CS_PATH
+POSIX_V6_ILP32_OFF32_CFLAGS, _CS_POSIX_V6_ILP32_OFF32_CFLAGS
+POSIX_V6_ILP32_OFF32_LDFLAGS, _CS_POSIX_V6_ILP32_OFF32_LDFLAGS
+POSIX_V6_ILP32_OFF32_LIBS, _CS_POSIX_V6_ILP32_OFF32_LIBS
+POSIX_V6_ILP32_OFFBIG_CFLAGS, _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS
+POSIX_V6_ILP32_OFFBIG_LDFLAGS, _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS
+POSIX_V6_ILP32_OFFBIG_LIBS, _CS_POSIX_V6_ILP32_OFFBIG_LIBS
+POSIX_V6_LP64_OFF64_CFLAGS, _CS_POSIX_V6_LP64_OFF64_CFLAGS
+POSIX_V6_LP64_OFF64_LDFLAGS, _CS_POSIX_V6_LP64_OFF64_LDFLAGS
+POSIX_V6_LP64_OFF64_LIBS, _CS_POSIX_V6_LP64_OFF64_LIBS
+POSIX_V6_LPBIG_OFFBIG_CFLAGS, _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
+POSIX_V6_LPBIG_OFFBIG_LDFLAGS, _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
+POSIX_V6_LPBIG_OFFBIG_LIBS, _CS_POSIX_V6_LPBIG_OFFBIG_LIBS
+POSIX_V6_WIDTH_RESTRICTED_ENVS, _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS
+_POSIX_V6_ILP32_OFF32_CFLAGS, _CS_POSIX_V6_ILP32_OFF32_CFLAGS
+_POSIX_V6_ILP32_OFF32_LDFLAGS, _CS_POSIX_V6_ILP32_OFF32_LDFLAGS
+_POSIX_V6_ILP32_OFF32_LIBS, _CS_POSIX_V6_ILP32_OFF32_LIBS
+_POSIX_V6_ILP32_OFFBIG_CFLAGS, _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS
+_POSIX_V6_ILP32_OFFBIG_LDFLAGS, _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS
+_POSIX_V6_ILP32_OFFBIG_LIBS, _CS_POSIX_V6_ILP32_OFFBIG_LIBS
+_POSIX_V6_LP64_OFF64_CFLAGS, _CS_POSIX_V6_LP64_OFF64_CFLAGS
+_POSIX_V6_LP64_OFF64_LDFLAGS, _CS_POSIX_V6_LP64_OFF64_LDFLAGS
+_POSIX_V6_LP64_OFF64_LIBS, _CS_POSIX_V6_LP64_OFF64_LIBS
+_POSIX_V6_LPBIG_OFFBIG_CFLAGS, _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
+_POSIX_V6_LPBIG_OFFBIG_LDFLAGS, _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
+_POSIX_V6_LPBIG_OFFBIG_LIBS, _CS_POSIX_V6_LPBIG_OFFBIG_LIBS
+_POSIX_V6_WIDTH_RESTRICTED_ENVS, _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS
+%%
+int
+find_confstr(const char *name, int *key)
+{
+	const struct map *rv;
+
+	rv = in_word_set(name, strlen(name));
+	if (rv != NULL) {
+		if (rv->valid) {
+			*key = rv->key;
+			return 1;
+		}
+		return -1;
+	}
+	return 0;
+}
diff --git a/usr.bin/getconf/fake-gperf.awk b/usr.bin/getconf/fake-gperf.awk
new file mode 100644
index 000000000000..2705d6a03450
--- /dev/null
+++ b/usr.bin/getconf/fake-gperf.awk
@@ -0,0 +1,68 @@
+#!/usr/bin/awk -f
+# $FreeBSD$
+BEGIN {
+  state = 0;
+  struct_seen = "";
+}
+/^%{$/ && state == 0 {
+  state = 1;
+  next;
+}
+/^%}$/ && state == 1 {
+  state = 0;
+  next;
+}
+state == 1 { print; next; }
+/^struct/ && state == 0 {
+  print;
+  struct_seen = $2;
+  next;
+}
+/^%%$/ && state == 0 {
+  state = 2;
+  print "#include <stddef.h>";
+  print "#include <string.h>";
+  if (struct_seen !~ /^$/) {
+    print "static const struct", struct_seen, "wordlist[] = {";
+  } else {
+    print "static const struct map {";
+    print "\tconst char *name;";
+    print "\tint key;";
+    print "\tint valid;";
+    print "} wordlist[] = {";
+    struct_seen = "map";
+  }
+  next;
+}
+/^%%$/ && state == 2 {
+  state = 3;
+  print "\t{ NULL }";
+  print "};";
+  print "#define\tNWORDS\t(sizeof(wordlist)/sizeof(wordlist[0]) - 1)";
+  print "static const struct map *";
+  print "in_word_set(const char *word, unsigned int len)";
+  print "{";
+  print "\tconst struct", struct_seen, "*mp;";
+  print "";
+  print "\tfor (mp = wordlist; mp < &wordlist[NWORDS]; mp++) {";
+  print "\t\tif (strcmp(word, mp->name) == 0)";
+  print "\t\t\treturn (mp);";
+  print "\t}";
+  print "\treturn (NULL);";
+  print "}";
+  print "";
+  next;
+}
+state == 2 && NF == 2 {
+  name = substr($1, 1, length($1) - 1);
+  printf "#ifdef %s\n", $2;
+  printf "\t{ \"%s\", %s, 1 },\n", name, $2;
+  print "#else";
+  printf "\t{ \"%s\", 0, 0 },\n", name, $2;
+  print "#endif"
+  next;
+}
+state == 3 { print; next; }
+{
+				# eat anything not matched.
+}
diff --git a/usr.bin/getconf/getconf.1 b/usr.bin/getconf/getconf.1
new file mode 100644
index 000000000000..f98d6e85e7ea
--- /dev/null
+++ b/usr.bin/getconf/getconf.1
@@ -0,0 +1,211 @@
+.\"
+.\" Copyright 2000 Massachusetts Institute of Technology
+.\"
+.\" Permission to use, copy, modify, and distribute this software and
+.\" its documentation for any purpose and without fee is hereby
+.\" granted, provided that both the above copyright notice and this
+.\" permission notice appear in all copies, that both the above
+.\" copyright notice and this permission notice appear in all
+.\" supporting documentation, and that the name of M.I.T. not be used
+.\" in advertising or publicity pertaining to distribution of the
+.\" software without specific, written prior permission.  M.I.T. makes
+.\" no representations about the suitability of this software for any
+.\" purpose.  It is provided "as is" without express or implied
+.\" warranty.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
+.\" ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
+.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
+.\" SHALL M.I.T. 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd September 18, 2002
+.Dt GETCONF 1
+.Os
+.Sh NAME
+.Nm getconf
+.Nd retrieve standard configuration variables
+.Sh SYNOPSIS
+.Nm
+.Op Fl v Ar environment
+.Ar path_var
+.Ar file
+.Pp
+.Nm
+.Op Fl v Ar environment
+.Ar system_var
+.Sh DESCRIPTION
+The
+.Nm
+utility prints the value of a
+.Tn POSIX
+or
+.Tn X/Open
+path or system configuration variable to the standard output.
+If the specified variable is undefined, the string
+.Dq Li undefined
+is output.
+.Pp
+The first form of the command, with two mandatory
+arguments, retrieves file- and filesystem-specific
+configuration variables using
+.Xr pathconf 2 .
+The second form, with a single argument, retrieves system
+configuration variables using
+.Xr confstr 3
+and
+.Xr sysconf 3 ,
+depending on the type of variable.
+As an extension, the second form can also be used to query static limits from
+.Aq Pa limits.h .
+.Pp
+All
+.Xr sysconf 3
+and
+.Xr pathconf 2
+variables use the same name as the manifest constants defined in
+the relevant standard C-language bindings, including any leading
+underscore or prefix.
+That is to say,
+.Ar system_var
+might be
+.Dv ARG_MAX
+or
+.Dv _POSIX_VERSION ,
+as opposed to the
+.Xr sysconf 3
+names
+.Dv _SC_ARG_MAX
+or
+.Dv _SC_POSIX_VERSION .
+Variables retrieved from
+.Xr confstr 3
+have the leading
+.Ql _CS_
+stripped off; thus,
+.Dv _CS_PATH
+is queried by a
+.Ar system_var
+of
+.Dq Li PATH .
+.Ss Programming Environments
+The
+.Fl v Ar environment
+option specifies a
+.St -p1003.1-2001
+programming environment under which the values are to be queried.
+This option currently does nothing, but may in the future be used
+to select between 32-bit and 64-bit execution environments on platforms
+which support both.
+Specifying an environment which is not supported on the current execution
+platform gives undefined results.
+.Pp
+The standard programming environments are as follows:
+.Bl -tag -width ".Li POSIX_V6_LPBIG_OFFBIG" -offset indent
+.It Li POSIX_V6_ILP32_OFF32
+Exactly 32-bit integer, long, pointer, and file offset.
+.Sy Supported platforms :
+None.
+.It Li POSIX_V6_ILP32_OFFBIG
+Exactly 32-bit integer, long, and pointer; at least 64-bit file offset.
+.Sy Supported platforms :
+.Tn IA32 ,
+.Tn PowerPC .
+.It Li POSIX_V6_LP64_OFF64
+Exactly 32-bit integer; exactly 64-bit long, pointer, and file offset.
+.Sy Supported platforms :
+.Tn Alpha ,
+.Tn SPARC64 .
+.It Li POSIX_V6_LPBIG_OFFBIG
+At least 32-bit integer; at least 64-bit long, pointer, and file offset.
+.Sy Supported platforms :
+None.
+.El
+.Pp
+The command:
+.Bd -literal -offset indent
+getconf POSIX_V6_WIDTH_RESTRICTED_ENVS
+.Ed
+.Pp
+returns a newline-separated list of environments in which the width
+of certain fundamental types is no greater than the width of the native
+C type
+.Ql long .
+At present, all programming environments supported by
+.Fx
+have this property.
+Several of the
+.Xr confstr 3
+variables provide information on the necessary compiler and linker flags
+to use the standard programming environments described above.
+.Sh DIAGNOSTICS
+.Ex -std
+Use of a
+.Ar system_var
+or
+.Ar path_var
+which is completely unrecognized is considered an error,
+causing a diagnostic message to be written to standard error.
+One
+which is known but merely undefined does not result in an error
+indication.
+The
+.Nm
+command recognizes all of the variables defined for
+.St -p1003.1-2001 ,
+including those which are not currently implemented.
+.Sh EXAMPLES
+The command:
+.Bd -literal -offset indent
+getconf PATH
+.Ed
+.Pp
+will display the system default setting for the
+.Ev PATH
+environment variable.
+.Pp
+The command:
+.Bd -literal -offset indent
+getconf NAME_MAX /tmp
+.Ed
+.Pp
+will display the maximum length of a filename in the
+.Pa /tmp
+directory.
+.Pp
+The command:
+.Bd -literal -offset indent
+getconf -v POSIX_V6_LPBIG_OFFBIG LONG_MAX
+.Ed
+.Pp
+will display the maximum value of the C type
+.Ql long
+in the
+.Li POSIX_V6_LPBIG_OFFBIG
+programming environment,
+if the system supports that environment.
+.Sh SEE ALSO
+.Xr pathconf 2 ,
+.Xr confstr 3 ,
+.Xr sysconf 3
+.Sh STANDARDS
+The
+.Nm
+utility is expected to be compliant with
+.St -p1003.1-2001 .
+.Sh HISTORY
+The
+.Nm
+command first appeared in
+.Fx 5.0 .
+.Sh AUTHORS
+.An Garrett A. Wollman Aq wollman@lcs.mit.edu
diff --git a/usr.bin/getconf/limits.gperf b/usr.bin/getconf/limits.gperf
new file mode 100644
index 000000000000..bb8ef0d09d87
--- /dev/null
+++ b/usr.bin/getconf/limits.gperf
@@ -0,0 +1,118 @@
+%{
+/*
+ * Copyright is disclaimed as to the contents of this file.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+
+#include <string.h>
+#include <limits.h>
+
+#include "getconf.h"
+
+/*
+ * Override gperf's built-in external scope.
+ */
+static const struct map *in_word_set(const char *str, unsigned int len);
+
+%}
+struct map { const char *name; intmax_t value; int valid; };
+%%
+_POSIX_CLOCKRES_MIN, _POSIX_CLOCKRES_MIN
+_POSIX_AIO_LISTIO_MAX, _POSIX_AIO_LISTIO_MAX
+_POSIX_AIO_MAX, _POSIX_AIO_MAX
+_POSIX_ARG_MAX, _POSIX_ARG_MAX
+_POSIX_CHILD_MAX, _POSIX_CHILD_MAX
+_POSIX_DELAYTIMER_MAX, _POSIX_DELAYTIMER_MAX
+_POSIX_HOST_NAME_MAX, _POSIX_HOST_NAME_MAX
+_POSIX_LINK_MAX, _POSIX_LINK_MAX
+_POSIX_LOGIN_NAME_MAX, _POSIX_LOGIN_NAME_MAX
+_POSIX_MAX_CANON, _POSIX_MAX_CANON
+_POSIX_MAX_INPUT, _POSIX_MAX_INPUT
+_POSIX_MQ_OPEN_MAX, _POSIX_MQ_OPEN_MAX
+_POSIX_MQ_PRIO_MAX, _POSIX_MQ_PRIO_MAX
+_POSIX_NAME_MAX, _POSIX_NAME_MAX
+_POSIX_NGROUPS_MAX, _POSIX_NGROUPS_MAX
+_POSIX_OPEN_MAX, _POSIX_OPEN_MAX
+_POSIX_PATH_MAX, _POSIX_PATH_MAX
+_POSIX_PIPE_BUF, __POSIX_PIPE_BUF
+_POSIX_RE_DUP_MAX, _POSIX_RE_DUP_MAX
+_POSIX_RTSIG_MAX, _POSIX_RTSIG_MAX
+_POSIX_SEM_NSEMS_MAX, _POSIX_SEM_NSEMS_MAX
+_POSIX_SEM_VALUE_MAX, _POSIX_SEM_VALUE_MAX
+_POSIX_SIGQUEUE_MAX, _POSIX_SIGQUEUE_MAX
+_POSIX_SSIZE_MAX, _POSIX_SSIZE_MAX
+_POSIX_STREAM_MAX, _POSIX_STREAM_MAX
+_POSIX_SS_REPL_MAX, _POSIX_SS_REPL_MAX
+_POSIX_SYMLINK_MAX, _POSIX_SYMLINK_MAX
+_POSIX_SYMLOOP_MAX, _POSIX_SYMLOOP_MAX
+_POSIX_THREAD_DESTRUCTOR_ITERATIONS, _POSIX_THREAD_DESTRUCTOR_ITERATIONS
+_POSIX_THREAD_KEYS_MAX, _POSIX_THREAD_KEYS_MAX
+_POSIX_THREAD_THREADS_MAX, _POSIX_THREAD_THREADS_MAX
+_POSIX_TIMER_MAX, _POSIX_TIMER_MAX
+_POSIX_TRACE_EVENT_NAME_MAX, _POSIX_TRACE_EVENT_NAME_MAX
+_POSIX_TRACE_NAME_MAX, _POSIX_TRACE_NAME_MAX
+_POSIX_TRACE_SYS_MAX, _POSIX_TRACE_SYS_MAX
+_POSIX_TRACE_USER_EVENT_MAX, _POSIX_TRACE_USER_EVENT_MAX
+_POSIX_TTY_NAME_MAX, _POSIX_TTY_NAME_MAX
+_POSIX_TZNAME_MAX, _POSIX_TZNAME_MAX
+_POSIX2_BC_BASE_MAX, _POSIX2_BC_BASE_MAX
+_POSIX2_BC_DIM_MAX, _POSIX2_BC_DIM_MAX
+_POSIX2_BC_SCALE_MAX, _POSIX2_BC_SCALE_MAX
+_POSIX2_BC_STRING_MAX, _POSIX2_BC_STRING_MAX
+_POSIX2_CHARCLASS_NAME_MAX, _POSIX2_CHARCLASS_NAME_MAX
+_POSIX2_COLL_WEIGHTS_MAX, _POSIX2_COLL_WEIGHTS_MAX
+_POSIX2_EXPR_NEXT_MAX, _POSIX2_EXPR_NEST_MAX
+_POSIX2_LINE_MAX, _POSIX2_LINE_MAX
+_POSIX2_RE_DUP_MAX, _POSIX2_RE_DUP_MAX
+_XOPEN_IOV_MAX, _XOPEN_IOV_MAX
+_XOPEN_NAME_MAX, _XOPEN_NAME_MAX
+_XOPEN_PATH_MAX, _XOPEN_PATH_MAX
+CHAR_BIT, CHAR_BIT
+CHAR_MAX, CHAR_MAX
+CHAR_MIN, CHAR_MIN
+INT_MAX, INT_MAX
+INT_MIN, INT_MIN
+LLONG_MIN, LLONG_MIN
+LLONG_MAX, LLONG_MAX
+LONG_BIT, LONG_BIT
+LONG_MAX, LONG_MAX
+LONG_MIN, LONG_MIN
+MB_LEN_MAX, MB_LEN_MAX
+SCHAR_MAX, SCHAR_MAX
+SCHAR_MIN, SCHAR_MIN
+SHRT_MAX, SHRT_MAX
+SHRT_MIN, SHRT_MIN
+SSIZE_MAX, SSIZE_MAX
+UCHAR_MAX, UCHAR_MAX
+UINT_MAX, UINT_MAX
+ULLONG_MAX, ULLONG_MAX
+ULONG_MAX, ULONG_MAX
+USHRT_MAX, USHRT_MAX
+WORD_BIT, WORD_BIT
+CHARCLASS_NAME_MAX, CHARCLASS_NAME_MAX
+NL_ARGMAX, NL_ARGMAX
+ML_LANGMAX, NL_LANGMAX
+NL_MSGMAX, NL_MSGMAX
+NL_NMAX, NL_NMAX
+NL_SETMAX, NL_SETMAX
+NL_TEXTMAX, NL_TEXTMAX
+NZERO, NZERO
+%%
+int
+find_limit(const char *name, intmax_t *value)
+{
+	const struct map *rv;
+
+	rv = in_word_set(name, strlen(name));
+	if (rv != NULL) {
+		if (rv->valid) {
+			*value = rv->value;
+			return 1;
+		}
+		return -1;
+	}
+	return 0;
+}
diff --git a/usr.bin/getconf/progenv.gperf b/usr.bin/getconf/progenv.gperf
new file mode 100644
index 000000000000..64c9b4ca1998
--- /dev/null
+++ b/usr.bin/getconf/progenv.gperf
@@ -0,0 +1,67 @@
+%{
+/*
+ * Copyright is disclaimed as to the contents of this file.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+
+#include <string.h>
+#include <unistd.h>
+
+#include "getconf.h"
+
+/*
+ * Override gperf's built-in external scope.
+ */
+static const struct map *in_word_set(const char *str, unsigned int len);
+
+/*
+ * The Standard seems a bit ambiguous over whether the POSIX_V6_*
+ * are specified with or without a leading underscore, so we just
+ * use both.
+ */
+/*
+ * The alt_path member gives the path containing another `getconf'
+ * executable which was compiled using the specified programming
+ * environment.  If it is NULL, the current executable is good enough.
+ * If we ever support multiple environments, this table will need to
+ * be updated.  (We cheat here and define the supported environments
+ * statically.)
+ */
+#if defined(__alpha__) || defined(__sparc64__)
+#define	have_LP64_OFF64		NULL
+#endif
+
+#if defined(__i386__) || defined(__powerpc__)
+#define	have_ILP32_OFFBIG	NULL
+#endif
+
+%}
+struct map { const char *name; const char *alt_path; int valid; };
+%%
+POSIX_V6_ILP32_OFF32, notdef
+POSIX_V6_ILP32_OFFBIG, have_ILP32_OFFBIG
+POSIX_V6_LP64_OFF64, have_LP64_OFF64
+POSIX_V6_LPBIG_OFFBIG, notdef
+_POSIX_V6_ILP32_OFF32, notdef
+_POSIX_V6_ILP32_OFFBIG, have_ILP32_OFFBIG
+_POSIX_V6_LP64_OFF64, have_LP64_OFF64
+_POSIX_V6_LPBIG_OFFBIG, notdef
+%%
+int
+find_progenv(const char *name, const char **alt_path)
+{
+	const struct map *rv;
+
+	rv = in_word_set(name, strlen(name));
+	if (rv != NULL) {
+		if (rv->valid) {
+			*alt_path = rv->alt_path;
+			return 1;
+		}
+		return -1;
+	}
+	return 0;
+}