How to change libwebsockets color scheme

I am using libwebsockets library. This exposes certain methods for writing into a log file. lwsl_warn(...), lwsl_err(...) and lwsl_err(...) to name the most common. The output is color coded using ANSI sequences.

Is there a way to set the default color scheme (other than recompiling the library)? Thanks.

Solution

I poked around in the libwebsockets source and found my answer: The colors are hard coded - so the answer to my original question is "no".

However, the color scheme is not hard to find and edit. It resides in two source files - one of these is compiled depending on options:

libwebsockets/lib/core/logs.c

and

libwebsockets/lib/plat/optee/lws-plat-optee.c

All it takes is to edit the self-explanatory table:

static const char * const colours[] = {
    "[31;1m", /* LLL_ERR */
    "[36;1m", /* LLL_WARN */
    "[35;1m", /* LLL_NOTICE */ 
    "[32;1m", /* LLL_INFO */
    "[34;1m", /* LLL_DEBUG */
    "[33;1m", /* LLL_PARSER */
    "[33m",   /* LLL_HEADER */
    "[33m",   /* LLL_EXT */
    "[33m",   /* LLL_CLIENT */
    "[33;1m", /* LLL_LATENCY */
    "[0;1m",  /* LLL_USER */
    "[31m",   /* LLL_THREAD */
};

Then build as before. Once in the libwebsockets/build directory do the following:

make clean
make && sudo make install
sudo ldconfig

... and enjoy!