o Update getextattr and setextattr utilities to take into account the

revised EA interface with explicit namespacing.  Link against libutil
  to provide string/constant conversion for namespaces.  Document
  revised interface.

Obtained from:	TrustedBSD Project

usr.sbin/getextattr/Makefile

@@ -1,6 +1,7 @@
 # $FreeBSD$
 PROG=	getextattr
 SRCS=	getextattr.c
+LDADD=	${LIBUTIL}
 CFLAGS+=	-Wall
 MAN8=	getextattr.8
 

usr.sbin/getextattr/getextattr.8

@@ -1,5 +1,5 @@
 .\"-
-.\" Copyright (c) 2000 Robert N. M. Watson
+.\" Copyright (c) 2000, 2001 Robert N. M. Watson
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -34,6 +34,7 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl ls
+.Ar namespace
 .Ar attrname
 .Ar filename ...
 .Sh DESCRIPTION
@@ -41,6 +42,10 @@
 is a user tool to retrieve a named extended attribute on a file or
 directory.
 The
+.Ar namespace
+argument should be the namespace of the attribute to retrieve: legal
+values are "user" and "system".
+The
 .Ar attrname
 argument should be the name of the attribute, and
 .Ar filename
@@ -70,7 +75,7 @@ to succeed, the attribute service must be available on the file system,
 and the attribute must of defined for the file queried.
 .Sh EXAMPLES
 .Bd -literal -offset indent
-# getextattr md5 /kernel
+# getextattr system md5 /kernel
 /kernel:
   61 61 33 62 39 39 66 65    31 35 35 32 31 62 65 32 
   62 36 38 36 62 31 66 39    63 64 33 39 35 36 36 31 

usr.sbin/getextattr/getextattr.c

@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 1999, 2000 Robert N. M. Watson
+ * Copyright (c) 1999, 2000, 2001 Robert N. M. Watson
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$FreeBSD$
+ * $FreeBSD$
  */
 /*
  * TrustedBSD Project - extended attribute support
@@ -32,6 +32,7 @@
 #include <sys/uio.h>
 #include <sys/extattr.h>
 
+#include <libutil.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <vis.h>
@@ -40,7 +41,8 @@ void
 usage(void)
 {
 
-	fprintf(stderr, "getextattr [-s] [attrname] [filename ...]\n");
+	fprintf(stderr, "getextattr [-s] [namespace] [attrname] "
+	    "[filename ...]\n");
 	exit(-1);
 }
 
@@ -56,7 +58,7 @@ main(int argc, char *argv[])
 	char	*attrname;
 	char	buf[BUFSIZE];
 	char	visbuf[BUFSIZE*4];
-	int	error, i, arg_counter;
+	int	error, i, arg_counter, namespace;
 	int	ch;
 
 	int	flag_as_string = 0;
@@ -78,10 +80,15 @@ main(int argc, char *argv[])
 	argc -= optind;
 	argv += optind;
 
-	if (argc <= 1)
+	if (argc < 3)
 		usage();
 
-	attrname = argv[0];
+	error = extattr_string_to_namespace(argv[0], &namespace);
+	if (error) {
+		perror(argv[0]);
+		return (-1);
+	}
+	attrname = argv[1];
 
 	argc--;
 	argv++;
@@ -89,8 +96,8 @@ main(int argc, char *argv[])
 	iov_buf.iov_base = buf;
 	iov_buf.iov_len = BUFSIZE;
 
-	for (arg_counter = 0; arg_counter < argc; arg_counter++) {
-		error = extattr_get_file(argv[arg_counter], attrname,
+	for (arg_counter = 1; arg_counter < argc; arg_counter++) {
+		error = extattr_get_file(argv[arg_counter], namespace, attrname,
 		    &iov_buf, 1);
 
 		if (error == -1)

usr.sbin/setextattr/Makefile

@@ -1,6 +1,7 @@
 # $FreeBSD$
 PROG=	setextattr
 SRCS=	setextattr.c
+LDADD=	${LIBUTIL}
 CFLAGS+=	-Wall
 MAN8+=	setextattr.8
 

usr.sbin/setextattr/setextattr.8

@@ -1,5 +1,5 @@
 .\"-
-.\" Copyright (c) 2000 Robert N. M. Watson
+.\" Copyright (c) 2000, 2001 Robert N. M. Watson
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -23,7 +23,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"       $FreeBSD$
+.\" $FreeBSD$
 .\"
 .Dd March 30, 2000
 .Dt SETEXTATTR 8
@@ -33,6 +33,7 @@
 .Nd set a named extended attribute
 .Sh SYNOPSIS
 .Nm
+.Ar namespace
 .Ar attrname
 .Ar filename
 .Ar attrvalue
@@ -41,6 +42,10 @@
 is a user tool to set a named extended attribute on a file or directory to
 the provided string.
 The
+.Ar namespace
+argument should be the namespace of the attribute to retrieve: legal
+values are "user" and "system".
+The
 .Ar attrname
 argument should be the name of the attribute,
 .Ar filename
@@ -54,7 +59,7 @@ In order for
 to succeed, the attribute service must be available on the file system,
 and appropriate privilege may be required.
 .Sh EXAMPLES
-.Dl # setextattr md5 /kernel `md5 -q /kernel`
+.Dl # setextattr system md5 /kernel `md5 -q /kernel`
 .Pp
 Set the
 .Dq md5

usr.sbin/setextattr/setextattr.c

@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 1999, 2000 Robert N. M. Watson
+ * Copyright (c) 1999, 2000, 2001 Robert N. M. Watson
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$FreeBSD$
+ * $FreeBSD$
  */
 /*
  * TrustedBSD Project - extended attribute support for UFS-like file systems
@@ -32,13 +32,16 @@
 #include <sys/types.h>
 #include <sys/uio.h>
 #include <sys/extattr.h>
+
+#include <libutil.h>
 #include <stdio.h>
 
 void
 usage(void)
 {
 
-	fprintf(stderr, "setextattr [attrname] [filename] [attrvalue]\n");
+	fprintf(stderr, "setextattr [namespace] [attrname] [filename] "
+	    "[attrvalue]\n");
 	exit(-1);
 }
 
@@ -46,17 +49,23 @@ int
 main(int argc, char *argv[])
 {
 	struct iovec    iov_buf;
-	int	error;
+	int	error, namespace;
 
-	if (argc != 4)
+	if (argc != 5)
 		usage();
 
-	iov_buf.iov_base = argv[3];
-	iov_buf.iov_len = strlen(argv[3]);
+	error = extattr_string_to_namespace(argv[1], &namespace);
+	if (error) {
+		perror(argv[1]);
+		return (-1);
+	}
 
-	error = extattr_set_file(argv[2], argv[1], &iov_buf, 1);
+	iov_buf.iov_base = argv[4];
+	iov_buf.iov_len = strlen(argv[4]);
+
+	error = extattr_set_file(argv[3], namespace, argv[2], &iov_buf, 1);
 	if (error == -1) {
-		perror("extattr_set_file");
+		perror(argv[3]);
 		return (-1);
 	}