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.TH LNFS 4
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.SH NAME
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lnfs \- long name file system
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.SH SYNOPSIS
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.B lnfs
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[
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.B -r
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]
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[
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.B -s
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.I srvname
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]
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.I mountpoint
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.br
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.B unlnfs
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.I mountpoint
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.SH DESCRIPTION
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.I Lnfs
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starts a process that mounts itself (see
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.IR bind (2))
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on
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.IR mountpoint .
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It presents a filtered view of the files under the mount
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point, allowing users to use long file names
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on file servers that do not support file names
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longer than 27 bytes.
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.PP
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The names used in the underlying file system are
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the base32 encoding of the md5 hash of the longer
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file name.  The user need not know the mapping
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since
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.I lnfs
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does all the work.
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.I Lnfs
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maintains a file
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.B .longnames
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in the directory
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.I mountpoint
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to record the long file names.
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.PP
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The options are:
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.TP
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.B -r
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allow only read access to the file system
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.TP
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.B -s
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provide a service name,
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.IR srvname ,
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to post in
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.BR /srv .
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Without this option, no posting is performed.
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.PP
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.I Unlnfs
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renames files with shortened names to their actual long names.
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It is useful once you have moved to a file server with true long name support.
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.SH FILES
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.B .longnames
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.SH SOURCE
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.B /sys/src/cmd/lnfs.c
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.PP
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.B /sys/src/cmd/unlnfs.c
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.SH BUGS
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This exists only to shame us into getting a real long
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name file server working.