API usage question

[s0i37]

Good day. I have a common question. How can I use your taint engine for tracking arbitrary data in common case? For example I don't know which function will touch some input data. I manual implement a searching my input data in whole memory and in case if I found them I will mark memory. I am looking for functions like a:

add_mem_taint(addr, len)
add_reg_taint(reg)

Like a http://shell-storm.org/blog/Taint-analysis-and-pattern-matching-with-Pin/