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Merge remote-tracking branch 'origin/topic/jsiwek/custom-b64-alphabet'

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* origin/topic/jsiwek/custom-b64-alphabet:
  Add decode_base64_custom BiF to allow alternate base64 alphabets.

Simplified the code a little bit.

Closes #670.
This commit is contained in:
Robin Sommer 2011-11-15 17:03:23 -08:00
commit 8de3614afa
5 changed files with 86 additions and 20 deletions
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17
src/Base64.h
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@ -13,11 +13,11 @@
class Base64Decoder {
public:
// <analyzer> is used for error reporting, and it should be zero
// when the decoder is called by the built-in function
// decode_base64().
Base64Decoder(Analyzer* analyzer);
~Base64Decoder() { }
// <analyzer> is used for error reporting, and it should be zero when
// the decoder is called by the built-in function decode_base64().
// Empty alphabet indicates the default base64 alphabet.
Base64Decoder(Analyzer* analyzer, const string& alphabet = "");
~Base64Decoder();
// A note on Decode():
//
@ -57,8 +57,13 @@ protected:
int base64_after_padding;
int errored; // if true, we encountered an error - skip further processing
Analyzer* analyzer;
int* base64_table;
static int* InitBase64Table(const string& alphabet);
static int default_base64_table[256];
static const string default_alphabet;
};
BroString* decode_base64(const BroString* s);
BroString* decode_base64(const BroString* s, const BroString* a = 0);
#endif /* base64_h */