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-rw-r--r--CryptoPP/fltrimpl.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/CryptoPP/fltrimpl.h b/CryptoPP/fltrimpl.h
new file mode 100644
index 000000000..4087d7d9f
--- /dev/null
+++ b/CryptoPP/fltrimpl.h
@@ -0,0 +1,67 @@
+#ifndef CRYPTOPP_FLTRIMPL_H
+#define CRYPTOPP_FLTRIMPL_H
+
+#define FILTER_BEGIN \
+ switch (m_continueAt) \
+ { \
+ case 0: \
+ m_inputPosition = 0;
+
+#define FILTER_END_NO_MESSAGE_END_NO_RETURN \
+ break; \
+ default: \
+ assert(false); \
+ }
+
+#define FILTER_END_NO_MESSAGE_END \
+ FILTER_END_NO_MESSAGE_END_NO_RETURN \
+ return 0;
+
+/*
+#define FILTER_END \
+ case -1: \
+ if (messageEnd && Output(-1, NULL, 0, messageEnd, blocking)) \
+ return 1; \
+ FILTER_END_NO_MESSAGE_END
+*/
+
+#define FILTER_OUTPUT3(site, statement, output, length, messageEnd, channel) \
+ {\
+ case site: \
+ statement; \
+ if (Output(site, output, length, messageEnd, blocking, channel)) \
+ return STDMAX(size_t(1), length-m_inputPosition);\
+ }
+
+#define FILTER_OUTPUT2(site, statement, output, length, messageEnd) \
+ FILTER_OUTPUT3(site, statement, output, length, messageEnd, DEFAULT_CHANNEL)
+
+#define FILTER_OUTPUT(site, output, length, messageEnd) \
+ FILTER_OUTPUT2(site, 0, output, length, messageEnd)
+
+#define FILTER_OUTPUT_BYTE(site, output) \
+ FILTER_OUTPUT(site, &(const byte &)(byte)output, 1, 0)
+
+#define FILTER_OUTPUT2_MODIFIABLE(site, statement, output, length, messageEnd) \
+ {\
+ case site: \
+ statement; \
+ if (OutputModifiable(site, output, length, messageEnd, blocking)) \
+ return STDMAX(size_t(1), length-m_inputPosition);\
+ }
+
+#define FILTER_OUTPUT_MODIFIABLE(site, output, length, messageEnd) \
+ FILTER_OUTPUT2_MODIFIABLE(site, 0, output, length, messageEnd)
+
+#define FILTER_OUTPUT2_MAYBE_MODIFIABLE(site, statement, output, length, messageEnd, modifiable) \
+ {\
+ case site: \
+ statement; \
+ if (modifiable ? OutputModifiable(site, output, length, messageEnd, blocking) : Output(site, output, length, messageEnd, blocking)) \
+ return STDMAX(size_t(1), length-m_inputPosition);\
+ }
+
+#define FILTER_OUTPUT_MAYBE_MODIFIABLE(site, output, length, messageEnd, modifiable) \
+ FILTER_OUTPUT2_MAYBE_MODIFIABLE(site, 0, output, length, messageEnd, modifiable)
+
+#endif