| 71 | // Scan templates |
| 72 | const CScript& script1 = scriptPubKey; |
| 73 | BOOST_FOREACH(const PAIRTYPE(txnouttype, CScript)& tplate, mTemplates) |
| 74 | { |
| 75 | const CScript& script2 = tplate.second; |
| 76 | vSolutionsRet.clear(); |
| 77 | |
| 78 | opcodetype opcode1, opcode2; |
| 79 | vector<unsigned char> vch1, vch2; |
| 80 | |
| 81 | // Compare |
| 82 | CScript::const_iterator pc1 = script1.begin(); |
| 83 | CScript::const_iterator pc2 = script2.begin(); |
| 84 | while (true) |
| 85 | { |
| 86 | if (pc1 == script1.end() && pc2 == script2.end()) |
| 87 | { |
| 88 | // Found a match |
| 89 | typeRet = tplate.first; |
| 90 | if (typeRet == TX_MULTISIG) |
| 91 | { |
| 92 | // Additional checks for TX_MULTISIG: |
| 93 | unsigned char m = vSolutionsRet.front()[0]; |
| 94 | unsigned char n = vSolutionsRet.back()[0]; |
| 95 | if (m < 1 || n < 1 || m > n || vSolutionsRet.size()-2 != n) |
| 96 | return false; |
| 97 | } |
| 98 | return true; |
| 99 | } |
| 100 | if (!script1.GetOp(pc1, opcode1, vch1)) |
| 101 | break; |
| 102 | if (!script2.GetOp(pc2, opcode2, vch2)) |
| 103 | break; |
| 104 | |
| 105 | // Template matching opcodes: |
| 106 | if (opcode2 == OP_PUBKEYS) |
| 107 | { |
| 108 | while (vch1.size() >= 33 && vch1.size() <= 65) |
| 109 | { |
| 110 | vSolutionsRet.push_back(vch1); |
| 111 | if (!script1.GetOp(pc1, opcode1, vch1)) |
| 112 | break; |
| 113 | } |
| 114 | if (!script2.GetOp(pc2, opcode2, vch2)) |
| 115 | break; |
| 116 | // Normal situation is to fall through |
| 117 | // to other if/else statements |
| 118 | } |
| 119 | |
| 120 | if (opcode2 == OP_PUBKEY) |
| 121 | { |
| 122 | if (vch1.size() < 33 || vch1.size() > 65) |
| 123 | break; |
| 124 | vSolutionsRet.push_back(vch1); |
| 125 | } |
| 126 | else if (opcode2 == OP_PUBKEYHASH) |
| 127 | { |
| 128 | if (vch1.size() != sizeof(uint160)) |
| 129 | break; |
| 130 | vSolutionsRet.push_back(vch1); |