1 #ifndef CRYPTOPP_FLTRIMPL_H 2 #define CRYPTOPP_FLTRIMPL_H 3 4 #if CRYPTOPP_MSC_VERSION 5 # pragma warning(push) 6 # pragma warning(disable: 4100) 7 #endif 8 9 #if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE 10 # pragma GCC diagnostic push 11 # pragma GCC diagnostic ignored "-Wunused-value" 12 #endif 13 14 #define FILTER_BEGIN \ 15 switch (m_continueAt) \ 16 { \ 17 case 0: \ 18 m_inputPosition = 0; 19 20 #define FILTER_END_NO_MESSAGE_END_NO_RETURN \ 21 break; \ 22 default: \ 23 CRYPTOPP_ASSERT(false); \ 24 } 25 26 #define FILTER_END_NO_MESSAGE_END \ 27 FILTER_END_NO_MESSAGE_END_NO_RETURN \ 28 return 0; 29 30 /* 31 #define FILTER_END \ 32 case -1: \ 33 if (messageEnd && Output(-1, NULL, 0, messageEnd, blocking)) \ 34 return 1; \ 35 FILTER_END_NO_MESSAGE_END 36 */ 37 38 #define FILTER_OUTPUT3(site, statement, output, length, messageEnd, channel) \ 39 {\ 40 case site: \ 41 statement; \ 42 if (Output(site, output, length, messageEnd, blocking, channel)) \ 43 return STDMAX(size_t(1), length-m_inputPosition);\ 44 } 45 46 #define FILTER_OUTPUT2(site, statement, output, length, messageEnd) \ 47 FILTER_OUTPUT3(site, statement, output, length, messageEnd, DEFAULT_CHANNEL) 48 49 #define FILTER_OUTPUT(site, output, length, messageEnd) \ 50 FILTER_OUTPUT2(site, 0, output, length, messageEnd) 51 52 #define FILTER_OUTPUT_BYTE(site, output) \ 53 FILTER_OUTPUT(site, &(const byte &)(byte)output, 1, 0) 54 55 #define FILTER_OUTPUT2_MODIFIABLE(site, statement, output, length, messageEnd) \ 56 {\ 57 case site: \ 58 statement; \ 59 if (OutputModifiable(site, output, length, messageEnd, blocking)) \ 60 return STDMAX(size_t(1), length-m_inputPosition);\ 61 } 62 63 #define FILTER_OUTPUT_MODIFIABLE(site, output, length, messageEnd) \ 64 FILTER_OUTPUT2_MODIFIABLE(site, 0, output, length, messageEnd) 65 66 #define FILTER_OUTPUT2_MAYBE_MODIFIABLE(site, statement, output, length, messageEnd, modifiable) \ 67 {\ 68 case site: \ 69 statement; \ 70 if (modifiable ? OutputModifiable(site, output, length, messageEnd, blocking) : Output(site, output, length, messageEnd, blocking)) \ 71 return STDMAX(size_t(1), length-m_inputPosition);\ 72 } 73 74 #define FILTER_OUTPUT_MAYBE_MODIFIABLE(site, output, length, messageEnd, modifiable) \ 75 FILTER_OUTPUT2_MAYBE_MODIFIABLE(site, 0, output, length, messageEnd, modifiable) 76 77 #if CRYPTOPP_MSC_VERSION 78 # pragma warning(pop) 79 #endif 80 81 #if CRYPTOPP_GCC_DIAGNOSTIC_AVAILABLE 82 # pragma GCC diagnostic pop 83 #endif 84 85 #endif 86