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These new functions is_char4_outside() and is_char8_outside() are meant to be used to verify if any of the 4 or 8 chars represented respectively by a uint32_t or a uint64_t is outside of the min,max byte range passed in argument. This is the simplified, fast version of the function so it is restricted to less than 0x80 distance between min and max (sufficient to validate chars). Extra functions are also provided to check for min or max alone as well, with the same restriction. The use case typically is to check that the output of read_u32() or read_u64() contains exclusively certain bytes.
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)