Miss Islington (bot) 3e4b688759 bpo-33871: Fix os.sendfile(), os.writev(), os.readv(), etc. (GH-7931) ...

* Fix integer overflow in os.readv(), os.writev(), os.preadv()
  and os.pwritev() and in os.sendfile() with headers or trailers
  arguments (on BSD-based OSes and MacOS).

* Fix sending the part of the file in os.sendfile() on MacOS.
  Using the trailers argument could cause sending more bytes from
  the input file than was specified.

Thanks Ned Deily for testing on 32-bit MacOS.
(cherry picked from commit 9d5727326a)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>

2018-07-31 02:20:06 -07:00

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