[PATCH 0/6] use size_t in iconv/strbuf

This series is primarily about the first two patches to convert our iconv helpers to use size_t consistently. I posted them to the git-security list a while back, wondering if there was something sneaky you could do here. But after some discussion, the consensus was no, you can't.

The other four patches are just semi-related cleanups I saw while poking around the strbuf code. I doubt any of them fixes a user-visible bug, but I think they're worth doing (and they don't seem to conflict with anything on pu).

  [1/6]: reencode_string: use st_add/st_mult helpers
  [2/6]: reencode_string: use size_t for string lengths
  [3/6]: strbuf: use size_t for length in intermediate variables
  [4/6]: strbuf_readlink: use ssize_t
  [5/6]: pass st.st_size as hint for strbuf_readlink()
  [6/6]: strbuf_humanise: use unsigned variables

 builtin/init-db.c    |  3 ++-
 convert.c            |  6 +++---
 pretty.c             |  2 +-
 refs/files-backend.c |  2 +-
 strbuf.c             | 20 ++++++++++----------
 utf8.c               | 10 +++++-----
 utf8.h               | 10 +++++-----
 7 files changed, 27 insertions(+), 26 deletions(-)

-Peff