linked to the networking libraries.

and those required by other components to avoid forcing unneeded
dependencies into the target objects.

retrying upon EINTR errors.

are not, due mainly to the lack of support for XML character entities
(e.g. & => & ).  This will make it easier to validate test files using
tools like xmllint, as well as edit and view them using XML tools.

Flush the protocol log data so it's immediately available to the test harness.

function(s) using SessionHandle pointers

responded with a single status line and no headers nor body. Starting now, a
HTTP response on a persistent connection (i.e not set to be closed after the
response has been taken care of) must have Content-Length or chunked
encoding set, or libcurl will simply assume that there is no body.

To my horror I learned that we had no less than 57(!) test cases that did bad
HTTP responses like this, and even the test http server (sws) responded badly
when queried by the test system if it is the test system. So although the
actual fix for the problem was tiny, going through all the newly failing test
cases got really painful and boring.

to verify winsock API availability.

all Win32 targets except CygWin. Cleanup.

-Log errno in message if setsockopt() fails.

-Close listener socket on major errors.

Change to meaningful var names and take care of a compiler warning on IRIX 6.5.22 MIPSPro C 7.3 64bit

Place parenthesis surrounding macro parameters so that the use of sread and swrite is more intuitive.