from netbsd:

Recognize all mount flags exported from the kernel (but only print the
ones that we used to print).  Note unrecognized flags(s) when printing
mount list.

diff --git a/sbin/mount/mount.c b/sbin/mount/mount.c
index 9cc5475..8324ce0 100644 (file)
--- a/sbin/mount/mount.c
+++ b/sbin/mount/mount.c
@@ -1,4 +1,4 @@
-/*     $NetBSD: mount.c,v 1.23 1995/08/22 19:58:33 jtc Exp $   */
+/*     $NetBSD: mount.c,v 1.24 1995/11/18 03:34:29 cgd Exp $   */
 
 /*
  * Copyright (c) 1980, 1989, 1993, 1994
@@ -43,7 +43,7 @@ static char copyright[] =
 #if 0
 static char sccsid[] = "@(#)mount.c    8.19 (Berkeley) 4/19/94";
 #else
-static char rcsid[] = "$NetBSD: mount.c,v 1.23 1995/08/22 19:58:33 jtc Exp $";
+static char rcsid[] = "$NetBSD: mount.c,v 1.24 1995/11/18 03:34:29 cgd Exp $";
 #endif
 #endif /* not lint */
 
@@ -80,18 +80,24 @@ void        usage __P((void));
 /* Map from mount otions to printable formats. */
 static struct opt {
        int o_opt;
+       int o_silent;
        const char *o_name;
 } optnames[] = {
-       { MNT_ASYNC,            "asynchronous" },
-       { MNT_EXPORTED,         "NFS exported" },
-       { MNT_LOCAL,            "local" },
-       { MNT_NODEV,            "nodev" },
-       { MNT_NOEXEC,           "noexec" },
-       { MNT_NOSUID,           "nosuid" },
-       { MNT_QUOTA,            "with quotas" },
-       { MNT_RDONLY,           "read-only" },
-       { MNT_SYNCHRONOUS,      "synchronous" },
-       { MNT_UNION,            "union" },
+       { MNT_ASYNC,            0,      "asynchronous" },
+       { MNT_DEFEXPORTED,      1,      "exported to the world" },
+       { MNT_EXKERB,           1,      "kerberos uid mapping" },
+       { MNT_EXPORTED,         0,      "NFS exported" },
+       { MNT_EXPORTANON,       1,      "anon uid mapping" },
+       { MNT_EXRDONLY,         1,      "exported read-only" },
+       { MNT_LOCAL,            0,      "local" },
+       { MNT_NODEV,            0,      "nodev" },
+       { MNT_NOEXEC,           0,      "noexec" },
+       { MNT_NOSUID,           0,      "nosuid" },
+       { MNT_QUOTA,            0,      "with quotas" },
+       { MNT_RDONLY,           0,      "read-only" },
+       { MNT_ROOTFS,           1,      "root file system" },
+       { MNT_SYNCHRONOUS,      0,      "synchronous" },
+       { MNT_UNION,            0,      "union" },
        { NULL }
 };
 
@@ -415,9 +421,14 @@ prmount(sf)
        flags = sf->f_flags & MNT_VISFLAGMASK;
        for (f = 0, o = optnames; flags && o->o_opt; o++)
                if (flags & o->o_opt) {
-                       (void)printf("%s%s", !f++ ? " (" : ", ", o->o_name);
+                       if (!o->o_silent)
+                               (void)printf("%s%s", !f++ ? " (" : ", ",
+                                   o->o_name);
                        flags &= ~o->o_opt;
                }
+       if (flags)
+               (void)printf("%sunknown flag%s %#x", !f++ ? " (" : ", ", 
+                   flags & (flags - 1) ? "s" : "", flags);
        (void)printf(f ? ")\n" : "\n");
 }