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Differential D1090 Diff 2998 src/script/interpreter.cpp

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src/script/interpreter.cpp

Show First 20 Lines • Show All 330 Lines • ▼ Show 20 Lines try {
} }
// Note how OP_RESERVED does not count towards the opcode limit. // Note how OP_RESERVED does not count towards the opcode limit.
if (opcode > OP_16 && ++nOpCount > MAX_OPS_PER_SCRIPT) { if (opcode > OP_16 && ++nOpCount > MAX_OPS_PER_SCRIPT) {
return set_error(serror, SCRIPT_ERR_OP_COUNT); return set_error(serror, SCRIPT_ERR_OP_COUNT);
} }
if (opcode == OP_CAT || opcode == OP_SUBSTR || opcode == OP_LEFT || if (opcode == OP_CAT || opcode == OP_SUBSTR || opcode == OP_LEFT ||
opcode == OP_RIGHT || opcode == OP_INVERT || opcode == OP_AND || opcode == OP_RIGHT || opcode == OP_INVERT || opcode == OP_2MUL ||
opcode == OP_OR || opcode == OP_XOR || opcode == OP_2MUL ||
opcode == OP_2DIV || opcode == OP_MUL || opcode == OP_DIV || opcode == OP_2DIV || opcode == OP_MUL || opcode == OP_DIV ||
opcode == OP_MOD || opcode == OP_LSHIFT || opcode == OP_MOD || opcode == OP_LSHIFT || opcode == OP_RSHIFT) {
opcode == OP_RSHIFT) {
// Disabled opcodes. // Disabled opcodes.
return set_error(serror, SCRIPT_ERR_DISABLED_OPCODE); return set_error(serror, SCRIPT_ERR_DISABLED_OPCODE);
} }
if (fExec && 0 <= opcode && opcode <= OP_PUSHDATA4) { if (fExec && 0 <= opcode && opcode <= OP_PUSHDATA4) {
if (fRequireMinimal && if (fRequireMinimal &&
!CheckMinimalPush(vchPushValue, opcode)) { !CheckMinimalPush(vchPushValue, opcode)) {
return set_error(serror, SCRIPT_ERR_MINIMALDATA); return set_error(serror, SCRIPT_ERR_MINIMALDATA);
▲ Show 20 Lines • Show All 424 Lines • ▼ Show 20 Lines try {
} }
CScriptNum bn(stacktop(-1).size()); CScriptNum bn(stacktop(-1).size());
stack.push_back(bn.getvch()); stack.push_back(bn.getvch());
} break; } break;
// //
// Bitwise logic // Bitwise logic
// //
case OP_AND:
case OP_OR:
case OP_XOR: {
// (x1 x2 - out)
if (stack.size() < 2) {
return set_error(
serror, SCRIPT_ERR_INVALID_STACK_OPERATION);
}
valtype& vch1 = stacktop(-2);
valtype& vch2 = stacktop(-1);
// throw error if inputs are not the same size
if (vch1.size() != vch2.size()) {
return set_error(
serror, SCRIPT_ERR_INVALID_BITWISE_OPERATION);
}
switch (opcode) {
case OP_AND:
for (auto it = vch1.begin(); it != vch1.end(); ++it) {
auto i = std::distance(vch1.begin(), it);
*it &= vch2[i];
}
break;
case OP_OR:
for (auto it = vch1.begin(); it != vch1.end(); ++it) {
auto i = std::distance(vch1.begin(), it);
*it |= vch2[i];
}
break;
case OP_XOR:
for (auto it = vch1.begin(); it != vch1.end(); ++it) {
auto i = std::distance(vch1.begin(), it);
*it ^= vch2[i];
}
break;
}
stack.pop_back();
} break;
case OP_EQUAL: case OP_EQUAL:
case OP_EQUALVERIFY: case OP_EQUALVERIFY:
// case OP_NOTEQUAL: // use OP_NUMNOTEQUAL // case OP_NOTEQUAL: // use OP_NUMNOTEQUAL
{ {
// (x1 x2 - bool) // (x1 x2 - bool)
if (stack.size() < 2) { if (stack.size() < 2) {
return set_error( return set_error(
serror, SCRIPT_ERR_INVALID_STACK_OPERATION); serror, SCRIPT_ERR_INVALID_STACK_OPERATION);
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