zero-padded ber files: got [UNIVERSAL 0]

[leniviytorrent]

File sizes for Erriccson MSC files are: 0, 2048, 4096, 6144, 8192, 10240, etc., that is divisible by 2048.
The rest of the files is filled with zeros.
PDU is "GSMPLMNCallDataRecord ::=  IMPLICIT SEQUENCE { … }"
All the data is decoded successfully with converter-sample, but in the end the program prints:

Decoding GSMPLMNCallDataRecord as SEQUENCE
ber_check_tags(GSMPLMNCallDataRecord, size=423, tm=0, step=0, tagno=0)
Fetching tag from {0084C731,423}: len 1, step 0, tagno 0 got [UNIVERSAL 0]
Expected: [0], expectation failed (tn=0, tm=0)
GSMPLMNCallDataRecord tagging check failed: 2
Freeing GSMPLMNCallDataRecord as SEQUENCE
Freeing GSMPLMNCallDataRecordChoice as CHOICE
tests/in/test1.ber: Decode failed past byte 1625: Input processing error

How to deal with it? Wiki says that  is "End Of Content". Shouldn't the parser treat it as EOF?

[counselour]

Those bytes are just padding so the ASN.1 messages are in 2k blocks. Just modify the converter-sample to pass '\0' bytes at the end of the message. eg,
while (*bytes == 0 && bytes_left > 0)  { ++bytes; -bytes_left; }