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Re: C-T-E: base64 and the real world.. what should an MUA do?

2008-05-09 03:58:16

Florian Weimer writes:
Actually, the RFC *requires* skipping non-base64 characters.

That requirement is considerably modified by the sentence after it:

   All line breaks or other characters not
   found in Table 1 must be ignored by decoding software.  In base64
   data, characters other than those in Table 1, line breaks, and other
   white space probably indicate a transmission error, about which a
   warning message or even a message rejection might be appropriate
   under some circumstances.

My code first tries to find the end of the base64 data (as intended by the sender, I mean). Only after finding an end does it call the base64 decoder. It wasn't too difficult to write.


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