Re: asn1Decoding(1) fails to decode a CHOICE?

[Nikos Mavrogiannopoulos]

On 10/04/2012 08:09 AM, Ivan Shmakov wrote:

>       It seems like asn1Decoding(1) (as of 2.13 debian 2; though there
>       don't seem to be any relevant entries in the log [1] in between
>       2.13 and 2.14) fails to decode a CHOICE.  Consider, e. g.:
> 
> $ asn1Decoding \
>       <(printf %s\\n \
>             'Example { } DEFINITIONS EXPLICIT TAGS ::=' \
>             BEGIN \
>             'Foo ::= CHOICE { bar [0] INTEGER, baz [1] INTEGER }' \
>             END) \
>       <(printf '\x80\x01\x2a') \
>       Example.Foo 
> Parse: done.


Is the structure you have correct? Where is the actual integer stored?

>       Also, the documentation doesn't seem to mention on how to encode
>       a CHOICE with asn1Coding(1) [3], and just omitting the “unused”

>       element(s) leads to a failure.

I also noticed. The asn1Coding tool is pretty primitive and needs a lot
of changes to be of any use.

regards,
Nikos