Jeff King d59f765ac9 use sha1_to_hex_r() instead of strcpy ...

Before sha1_to_hex_r() existed, a simple way to get hex
sha1 into a buffer was with:

  strcpy(buf, sha1_to_hex(sha1));

This isn't wrong (assuming the buf is 41 characters), but it
makes auditing the code base for bad strcpy() calls harder,
as these become false positives.

Let's convert them to sha1_to_hex_r(), and likewise for
some calls to find_unique_abbrev(). While we're here, we'll
double-check that all of the buffers are correctly sized,
and use the more obvious GIT_SHA1_HEXSZ constant.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

2015-10-05 11:08:05 -07:00

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