OT: setrlimit equivalent to prevent unlink or truncate

Chris Turner c.turner at 199technologies.org
Fri May 30 12:13:11 PDT 2008

Johannes Hofmann wrote:

I'm wondering whether there is a way to prevent a process to modify 
the file system. setrlimit(RLIMIT_FSIZE) to 0 almost does the trick,
but unfortunately it does not prevent unlink() or truncate().
Is there any reason why there is no limit to prevent unlink or

if it works, mounting the FS readonly should work..

also, chflags might be helpful..

or is this a coding question about coding the program that calls 
setrlimit() ?

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