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Re: libtasn1, asn1_read_value, and truncation
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From: |
Nikos Mavrogiannopoulos |
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Subject: |
Re: libtasn1, asn1_read_value, and truncation |
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Date: |
Sat, 27 Nov 2010 19:51:19 +0100 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.15) Gecko/20101027 Thunderbird/3.0.10 |
On 11/26/2010 06:57 AM, Jeffrey Walton wrote:
> Hi All,
>
> How does one detect if/when libtasn1 truncates the value during
> asn1_read_value. It is not clear to me from the online documentation
> (http://www.gnu.org/software/libtasn1/manual/libtasn1.html).
>
> Should GnuTLS infer truncation *if* the reported length of the value
> (from asn1_read_value) is the same as the size of the buffer? (The
> strategy is similar to interpreting return values from snprintf).
It would return an error that the provided buffer is not long enough.
regards,
Nikos