Messages in this thread | | | Date | Fri, 2 Mar 2001 09:57:02 +0000 | From | Malcolm Beattie <> | Subject | Re: ftruncate not extending files? |
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bert hubert writes: > I would've sworn, based on the fact that I saw people do it, that ftruncate > was a legitimate way to extend a file
Well it's not SuSv2 standards compliant:
http://www.opengroup.org/onlinepubs/007908799/xsh/ftruncate.html
If the file previously was larger than length, the extra data is discarded. If it was previously shorter than length, it is unspecified whether the file is changed or its size increased. If ^^^^^^^^^^^ the file is extended, the extended area appears as if it were zero-filled.
How "legitimate" relates to "SuSv2 standards compliant" is your call.
--Malcolm
-- Malcolm Beattie <mbeattie@sable.ox.ac.uk> Unix Systems Programmer Oxford University Computing Services - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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