[PATCH v7 0/2] http-backend: respect CONTENT_LENGTH as specified by rfc3875

It's been time. Thank you for parience.

Changes:

* did most of the changes proposed
* rebase to newer master (latest conflicting change is addition of combined test helper)
* make tests which cover, hopefully, all cases.
* handle incorectly truncated input also in receive-pack. Considering the complications
  pointed out by Jeff, it just filters the input in the frontend process. I hope it
  is acceptable thing to do.

Max Kirillov (2):
  http-backend: respect CONTENT_LENGTH as specified by rfc3875
  http-backend: respect CONTENT_LENGTH for receive-pack

 Makefile                                |   1 +
 config.c                                |   2 +-
 config.h                                |   1 +
 http-backend.c                          |  86 +++++++++++--
 t/helper/test-print-larger-than-ssize.c |  11 ++
 t/helper/test-tool.c                    |   1 +
 t/helper/test-tool.h                    |   1 +
 t/t5560-http-backend-noserver.sh        |  13 ++
 t/t5562-http-backend-content-length.sh  | 155 ++++++++++++++++++++++++
 t/t5562/invoke-with-content-length.pl   |  30 +++++
 10 files changed, 291 insertions(+), 10 deletions(-)
 create mode 100644 t/helper/test-print-larger-than-ssize.c
 create mode 100755 t/t5562-http-backend-content-length.sh
 create mode 100755 t/t5562/invoke-with-content-length.pl