This R package provides a client for Rserve.
It started as a simple proof of concept (the RSxx functions which bypass Rserve serialization),
but was later re-written in C for high efficiency, full SSL/TLS and QAP support (the RS.xx functions).
It supports Rserve both in regular as well as in OCAP mode. The code could be used as a basis for C-level Rserve client if required.
To install the CRAN version, use simply
install.packages("RSclient")
For installation of the latest development version, use
install.packages("RSclient", repo="https://rforge.net")
but note that you will require OpenSSL library and headers.