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Patrick Hemmer reported that calling concat() with an integer variable causes a %00 to appear at the beginning of the output. Looking at the code, it's not surprising. The function uses get_trash_chunk() to get one of the trashes, but can call casting functions which will also use their trash in turn and will cycle back to ours, causing the trash to be overwritten before being assigned to a sample. By allocating the trash from a pool using alloc_trash_chunk(), we can avoid this. However we must free it so the trash's contents must be moved to a permanent trash buffer before returning. This is what's achieved using smp_dup(). This should be backported as far as 2.0.
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)