| 322 | } |
| 323 | |
| 324 | bool CheckMinimalPush(const valtype& data, opcodetype opcode) { |
| 325 | // Excludes OP_1NEGATE, OP_1-16 since they are by definition minimal |
| 326 | assert(0 <= opcode && opcode <= OP_PUSHDATA4); |
| 327 | if (data.size() == 0) { |
| 328 | // Should have used OP_0. |
| 329 | return opcode == OP_0; |
| 330 | } else if (data.size() == 1 && data[0] >= 1 && data[0] <= 16) { |
| 331 | // Should have used OP_1 .. OP_16. |
| 332 | return false; |
| 333 | } else if (data.size() == 1 && data[0] == 0x81) { |
| 334 | // Should have used OP_1NEGATE. |
| 335 | return false; |
| 336 | } else if (data.size() <= 75) { |
| 337 | // Must have used a direct push (opcode indicating number of bytes pushed + those bytes). |
| 338 | return opcode == data.size(); |
| 339 | } else if (data.size() <= 255) { |
| 340 | // Must have used OP_PUSHDATA. |
| 341 | return opcode == OP_PUSHDATA1; |
| 342 | } else if (data.size() <= 65535) { |
| 343 | // Must have used OP_PUSHDATA2. |
| 344 | return opcode == OP_PUSHDATA2; |
| 345 | } |
| 346 | return true; |
| 347 | } |
| 348 | |
| 349 | int FindAndDelete(CScript& script, const CScript& b) |
| 350 | { |
no test coverage detected