asn1rt(3)

MODULE
asn1rt - ASN.1 runtime support functions

DESCRIPTION

This module is the interface module for the ASN.1 runtime support functions. To encode and decode ASN.1 types in runtime the functions in this module should be used.

EXPORTS

encode(Module,Type,Value)-> {ok,Bytes} | {error,Reason}

    Types
        Module = Type = atom()
        Value = term()
        Bytes = [Int|binary|Bytes] when integer(Int), Int >= 0, Int =< 255
        Reason = term()

    Encodes Value of Type defined in the ASN.1 module Module. Returns a possibly nested list of bytes and or binaries if successful. To get as fast execution as possible the encode function only performs rudimentary tests that the input Value is a correct instance of Type. The length of strings is for example not always checked.

decode(Module,Type,Bytes) -> {ok,Value}|{error,Reason}

    Types
        Module = Type = atom()
        Value = Reason = term()
        Bytes = binary | [Int] when integer(Int), Int >= 0, Int =< 255 | binary

    Decodes Type from Module from the list of bytes Bytes. If the module is compiled with ber_bin or per_bin option Bytes must be a binary. Returns {ok, Value} if successful.

validate(Module,Type,Value) -> ok | {error,Reason}

    Types
        Module = Type = atom()
        Value = term()

    Validates that Value conforms to Type from Module. Not implemented in this version of the ASN.1 application.

AUTHOR
Kenneth Lundin - support@erlang.ericsson.se