src/script/script_error.cpp

   1 // Copyright (c) 2009-2010 Satoshi Nakamoto
   2 // Copyright (c) 2009-2016 The Bitcoin Core developers
   3 // Distributed under the MIT software license, see the accompanying
   4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5
   6 #include "script_error.h"
   7
   8 const char* ScriptErrorString(const ScriptError serror)
   9 {
  10     switch (serror)
  11     {
  12         case SCRIPT_ERR_OK:
  13             return "No error";
  14         case SCRIPT_ERR_EVAL_FALSE:
  15             return "Script evaluated without error but finished with a false/empty top stack element";
  16         case SCRIPT_ERR_VERIFY:
  17             return "Script failed an OP_VERIFY operation";
  18         case SCRIPT_ERR_EQUALVERIFY:
  19             return "Script failed an OP_EQUALVERIFY operation";
  20         case SCRIPT_ERR_CHECKMULTISIGVERIFY:
  21             return "Script failed an OP_CHECKMULTISIGVERIFY operation";
  22         case SCRIPT_ERR_CHECKSIGVERIFY:
  23             return "Script failed an OP_CHECKSIGVERIFY operation";
  24         case SCRIPT_ERR_NUMEQUALVERIFY:
  25             return "Script failed an OP_NUMEQUALVERIFY operation";
  26         case SCRIPT_ERR_SCRIPT_SIZE:
  27             return "Script is too big";
  28         case SCRIPT_ERR_PUSH_SIZE:
  29             return "Push value size limit exceeded";
  30         case SCRIPT_ERR_OP_COUNT:
  31             return "Operation limit exceeded";
  32         case SCRIPT_ERR_STACK_SIZE:
  33             return "Stack size limit exceeded";
  34         case SCRIPT_ERR_SIG_COUNT:
  35             return "Signature count negative or greater than pubkey count";
  36         case SCRIPT_ERR_PUBKEY_COUNT:
  37             return "Pubkey count negative or limit exceeded";
  38         case SCRIPT_ERR_BAD_OPCODE:
  39             return "Opcode missing or not understood";
  40         case SCRIPT_ERR_DISABLED_OPCODE:
  41             return "Attempted to use a disabled opcode";
  42         case SCRIPT_ERR_INVALID_STACK_OPERATION:
  43             return "Operation not valid with the current stack size";
  44         case SCRIPT_ERR_INVALID_ALTSTACK_OPERATION:
  45             return "Operation not valid with the current altstack size";
  46         case SCRIPT_ERR_OP_RETURN:
  47             return "OP_RETURN was encountered";
  48         case SCRIPT_ERR_UNBALANCED_CONDITIONAL:
  49             return "Invalid OP_IF construction";
  50         case SCRIPT_ERR_NEGATIVE_LOCKTIME:
  51             return "Negative locktime";
  52         case SCRIPT_ERR_UNSATISFIED_LOCKTIME:
  53             return "Locktime requirement not satisfied";
  54         case SCRIPT_ERR_SIG_HASHTYPE:
  55             return "Signature hash type missing or not understood";
  56         case SCRIPT_ERR_SIG_DER:
  57             return "Non-canonical DER signature";
  58         case SCRIPT_ERR_MINIMALDATA:
  59             return "Data push larger than necessary";
  60         case SCRIPT_ERR_SIG_PUSHONLY:
  61             return "Only non-push operators allowed in signatures";
  62         case SCRIPT_ERR_SIG_HIGH_S:
  63             return "Non-canonical signature: S value is unnecessarily high";
  64         case SCRIPT_ERR_SIG_NULLDUMMY:
  65             return "Dummy CHECKMULTISIG argument must be zero";
  66         case SCRIPT_ERR_MINIMALIF:
  67             return "OP_IF/NOTIF argument must be minimal";
  68         case SCRIPT_ERR_SIG_NULLFAIL:
  69             return "Signature must be zero for failed CHECK(MULTI)SIG operation";
  70         case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS:
  71             return "NOPx reserved for soft-fork upgrades";
  72         case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM:
  73             return "Witness version reserved for soft-fork upgrades";
  74         case SCRIPT_ERR_PUBKEYTYPE:
  75             return "Public key is neither compressed or uncompressed";
  76         case SCRIPT_ERR_WITNESS_PROGRAM_WRONG_LENGTH:
  77             return "Witness program has incorrect length";
  78         case SCRIPT_ERR_WITNESS_PROGRAM_WITNESS_EMPTY:
  79             return "Witness program was passed an empty witness";
  80         case SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH:
  81             return "Witness program hash mismatch";
  82         case SCRIPT_ERR_WITNESS_MALLEATED:
  83             return "Witness requires empty scriptSig";
  84         case SCRIPT_ERR_WITNESS_MALLEATED_P2SH:
  85             return "Witness requires only-redeemscript scriptSig";
  86         case SCRIPT_ERR_WITNESS_UNEXPECTED:
  87             return "Witness provided for non-witness script";
  88         case SCRIPT_ERR_WITNESS_PUBKEYTYPE:
  89             return "Using non-compressed keys in segwit";
  90         case SCRIPT_ERR_UNKNOWN_ERROR:
  91         case SCRIPT_ERR_ERROR_COUNT:
  92         default: break;
  93     }
  94     return "unknown error";
  95 }