Introduce a -N option that disables the use of reserved ports, now

that -P is on by default.  Remove do-nothing code in the -P case (but
leave the option itself for backward compatibility).

PR:	bin/4500

2 files changed, 14 insertions, 5 deletions

diff --git a/sbin/mount_nfs/mount_nfs.8 b/sbin/mount_nfs/mount_nfs.8
index e81b017..9c92252 100644
--- a/sbin/mount_nfs/mount_nfs.8
+++ b/sbin/mount_nfs/mount_nfs.8
@@ -31,7 +31,7 @@
 .\"
 .\"	@(#)mount_nfs.8	8.3 (Berkeley) 3/29/95
 .\"
-.\" $Id: mount_nfs.8,v 1.8 1997/03/11 12:31:54 peter Exp $
+.\" $Id: mount_nfs.8,v 1.9 1997/04/18 16:23:09 dfr Exp $
 .\""
 .Dd March 29, 1995
 .Dt MOUNT_NFS 8
@@ -41,7 +41,7 @@
 .Nd mount nfs file systems
 .Sh SYNOPSIS
 .Nm mount_nfs
-.Op Fl 23KPTUbcdilqs
+.Op Fl 23KNPTUbcdilqs
 .Op Fl D Ar deadthresh
 .Op Fl I Ar readdirsize
 .Op Fl L Ar leaseterm
@@ -104,8 +104,14 @@ for more information.)
 Used with NQNFS to set the lease term to the specified number of seconds.
 Only use this argument for mounts with a large round trip delay.
 Values are normally in the 10-30 second range.
+.It Fl N
+Do
+.Em not
+use a reserved socket port number (see below).
 .It Fl P
 Use a reserved socket port number.
+This flag is obsolete, and only retained for compatibility reasons.
+Reserved port numbers are used by default now.
 This is useful for mounting servers that require clients to use a
 reserved port number on the mistaken belief that this makes NFS
 more secure. (For the rare case where the client has a trusted root account
diff --git a/sbin/mount_nfs/mount_nfs.c b/sbin/mount_nfs/mount_nfs.c
index dda54c5..efe52a2 100644
--- a/sbin/mount_nfs/mount_nfs.c
+++ b/sbin/mount_nfs/mount_nfs.c
@@ -45,7 +45,7 @@ static char copyright[] =
 static char sccsid[] = "@(#)mount_nfs.c	8.11 (Berkeley) 5/4/95";
 */
 static const char rcsid[] =
-	"$Id: mount_nfs.c,v 1.22 1997/05/01 12:30:02 dfr Exp $";
+	"$Id: mount_nfs.c,v 1.23 1997/06/03 13:49:26 dfr Exp $";
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -269,7 +269,7 @@ main(argc, argv)
 	nfsargs = nfsdefargs;
 	nfsargsp = &nfsargs;
 	while ((c = getopt(argc, argv,
-	    "23a:bcdD:g:I:iKL:lm:o:PpqR:r:sTt:w:x:U")) != -1)
+	    "23a:bcdD:g:I:iKL:lm:No:PpqR:r:sTt:w:x:U")) != -1)
 		switch (c) {
 		case '2':
 			mountmode = V2;
@@ -341,6 +341,9 @@ main(argc, argv)
 			realm[REALM_SZ - 1] = '\0';
 			break;
 #endif
+		case 'N':
+			nfsargsp->flags &= ~NFSMNT_RESVPORT;
+			break;
 		case 'o':
 			altflags = 0;
 			setflags(&altflags, &nfsargsp->flags, TRUE);
@@ -375,7 +378,7 @@ main(argc, argv)
 				mountmode = V3;
 			break;
 		case 'P':
-			nfsargsp->flags |= NFSMNT_RESVPORT;
+			/* obsolete for NFSMNT_RESVPORT, now default */
 			break;
 #ifdef ISO
 		case 'p':