rPGP vlang & c binginds

Bindings for signing/encryption functionalities in rPGP rust crate.

Requirements

• cbindgen: developed with 0.20.0, some tweaks were needed to produce a valid C header file (can be found in Makefile). So it's not guaranteed to work with other versions.
• rust & v & c

OSX

• cbindgen

cargo install --force cbindgen

• libgc

brew install libgc

to run included Make file for now on MacOS, it require GNU version of sed. see (this issue)[#2] for more context.

brew install gnu-sed
# before runing the makefile scripts, make gnu-sed temporarily the default sed version.
export PATH="/usr/local/opt/gnu-sed/libexec/gnubin:$PATH"

Running

make runv

This does the following:

• Builds the rust lib wrapping rPGP providing C-usable methods and type.
• Uses cbindgen to generate usage/crpgp.h.
• Generates usage/v/crpgp.v
• Runs usage/v/use.v

Status

• C memory leak test can be run by make valgrindc. Memory in vlang is managed by vlang garbage collector. Free methods are not exposed in v (can be).
• More things can be parameterized as needed (like hashing algorithm in the signature).