The asn1c compiles ASN.1 (Abstract Syntax Notation One) specifications into
the C source code. This compiler supports automatic constraints checking code
generation, parametrization, basic support for Information Object Classes.
The produced C code contains the codecs for BER & DER encoding rules.

See asn1c-usage.pdf and asn1c(1) manual page for details.

WWW: http://asn1c.sourceforge.net/

-- 
Lev Walkin
vlm@lionet.info