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A trick is used to set SESSION_ID, and SESSION_ID_CONTEXT lengths to 0 and avoid ASN1 encoding of these values. There is no specific function to set the length of those parameters to 0 so we fake this calling these function to a different value with the same buffer but a length to zero. But those functions don't seem to check the length of zero before performing a memcpy of length zero but with src and dst buf on the same pointer, causing valgrind to bark. So the code was re-work to pass them different pointers even if buffer content is un-used. In a second time, reseting value, a memcpy overlap happened on the SESSION_ID_CONTEXT. It was re-worked and this is now reset using the constant global value SHCTX_APPNAME which is a different pointer with the same content. This patch should be backported in every version since ssl support was added to haproxy if we want valgrind to shut up. This is tracked in github issue #56.
The HAProxy documentation has been split into a number of different files for ease of use. Please refer to the following files depending on what you're looking for : - INSTALL for instructions on how to build and install HAProxy - BRANCHES to understand the project's life cycle and what version to use - LICENSE for the project's license - CONTRIBUTING for the process to follow to submit contributions The more detailed documentation is located into the doc/ directory : - doc/intro.txt for a quick introduction on HAProxy - doc/configuration.txt for the configuration's reference manual - doc/lua.txt for the Lua's reference manual - doc/SPOE.txt for how to use the SPOE engine - doc/network-namespaces.txt for how to use network namespaces under Linux - doc/management.txt for the management guide - doc/regression-testing.txt for how to use the regression testing suite - doc/peers.txt for the peers protocol reference - doc/coding-style.txt for how to adopt HAProxy's coding style - doc/internals for developer-specific documentation (not all up to date)