9ae97018fb
When we want to convert "foo.pack" to "foo.idx", we do it by
duplicating the original string and then munging the bytes
in place. Let's use strip_suffix and xstrfmt instead, which
has several advantages:
1. It's more clear what the intent is.
2. It does not implicitly rely on the fact that
strlen(".idx") <= strlen(".pack") to avoid an overflow.
3. We communicate the assumption that the input file ends
with ".pack" (and get a run-time check that this is so).
4. We drop calls to strcpy, which makes auditing the code
base easier.
Likewise, we can do this to convert ".pack" to ".bitmap",
avoiding some manual memory computation.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Git - the stupid content tracker
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