The first patch adds (expensive) tests, the next two are cleanups which
set the stage for the remaining two to actually implement zip64 support
for offsets and file sizes.

Half of the series had been laying around for months, half-finished and
forgotten because I got distracted by the holiday season. :-/

  archive-zip: add tests for big ZIP archives
  archive-zip: use strbuf for ZIP directory
  archive-zip: write ZIP dir entry directly to strbuf
  archive-zip: support archives bigger than 4GB
  archive-zip: support files bigger than 4GB

 archive-zip.c                   | 211 ++++++++++++++++++++++++----------------
 t/t5004-archive-corner-cases.sh |  45 +++++++++
 t/t5004/big-pack.zip            | Bin 0 -> 7373 bytes
 3 files changed, 172 insertions(+), 84 deletions(-)
 create mode 100644 t/t5004/big-pack.zip

-- 
2.12.2