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    SubjectRe: Editing-in-place of a large file
    > What's needed is a generalisation of sparse files and truncate().
    > They both handle similar problems.

    how about

    fzero(int fd, off_t off, size_t len)

    which zeros the blocks and if it can creates a holey file?

    However, that's not what Bob wants, he wants to remove commercials from
    recorded TV. So what he wants is

    fdelete(int fd, off_t off, size_t len)

    which has the semantics of shifting the rest of the file backwards to "off".

    The main problem with this is if the off/len are not block aligned. If they
    are, then this is just block twiddling, if they aren't, then this is a file
    rewrite anyway.
    Larry McVoy lm at
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