08-19-2008
As an aside, some kernels - BSD is one - have an fhopen call that will open a file based on inode number.
I don't see how that helps since you can read the file via /proc/<pid>/fd. If the filesystem still has the data out there somewhere, can you read the file onto media to rescue it?
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LEARN ABOUT OPENDARWIN
clri
CLRI(8) BSD System Manager's Manual CLRI(8)
NAME
clri -- clear an inode
SYNOPSIS
clri special_device inode_number ...
DESCRIPTION
Clri is obsoleted for normal file system repair work by fsck(8).
Clri zeros out the inodes with the specified inode number(s) on the filesystem residing on the given special_device. The fsck(8) utility is
usually run after clri to reclaim the zero'ed inode(s) and the blocks previously claimed by those inode(s). Both read and write permission
are required on the specified special_device.
The primary purpose of this routine is to remove a file which for some reason is not being properly handled by fsck(8). Once removed, it is
anticipated that fsck(8) will be able to clean up the resulting mess.
SEE ALSO
fsck(8), fsdb(8), icheck(8), ncheck(8)
BUGS
If the file is open, the work of clri will be lost when the inode is written back to disk from the inode cache.
4th Berkeley Distribution April 19, 1994 4th Berkeley Distribution