1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-present 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/script_error.h>
7 8 #include <string>
9 10 std::string ScriptErrorString(const ScriptError serror)
11 {
12 switch (serror)
13 {
14 case SCRIPT_ERR_OK:
15 return "No error";
16 case SCRIPT_ERR_EVAL_FALSE:
17 return "Script evaluated without error but finished with a false/empty top stack element";
18 case SCRIPT_ERR_VERIFY:
19 return "Script failed an OP_VERIFY operation";
20 case SCRIPT_ERR_EQUALVERIFY:
21 return "Script failed an OP_EQUALVERIFY operation";
22 case SCRIPT_ERR_CHECKMULTISIGVERIFY:
23 return "Script failed an OP_CHECKMULTISIGVERIFY operation";
24 case SCRIPT_ERR_CHECKSIGVERIFY:
25 return "Script failed an OP_CHECKSIGVERIFY operation";
26 case SCRIPT_ERR_NUMEQUALVERIFY:
27 return "Script failed an OP_NUMEQUALVERIFY operation";
28 case SCRIPT_ERR_SCRIPT_SIZE:
29 return "Script is too big";
30 case SCRIPT_ERR_PUSH_SIZE:
31 return "Push value size limit exceeded";
32 case SCRIPT_ERR_OP_COUNT:
33 return "Operation limit exceeded";
34 case SCRIPT_ERR_STACK_SIZE:
35 return "Stack size limit exceeded";
36 case SCRIPT_ERR_SIG_COUNT:
37 return "Signature count negative or greater than pubkey count";
38 case SCRIPT_ERR_PUBKEY_COUNT:
39 return "Pubkey count negative or limit exceeded";
40 case SCRIPT_ERR_BAD_OPCODE:
41 return "Opcode missing or not understood";
42 case SCRIPT_ERR_DISABLED_OPCODE:
43 return "Attempted to use a disabled opcode";
44 case SCRIPT_ERR_INVALID_STACK_OPERATION:
45 return "Operation not valid with the current stack size";
46 case SCRIPT_ERR_INVALID_ALTSTACK_OPERATION:
47 return "Operation not valid with the current altstack size";
48 case SCRIPT_ERR_OP_RETURN:
49 return "OP_RETURN was encountered";
50 case SCRIPT_ERR_UNBALANCED_CONDITIONAL:
51 return "Invalid OP_IF construction";
52 case SCRIPT_ERR_NEGATIVE_LOCKTIME:
53 return "Negative locktime";
54 case SCRIPT_ERR_UNSATISFIED_LOCKTIME:
55 return "Locktime requirement not satisfied";
56 case SCRIPT_ERR_SIG_HASHTYPE:
57 return "Signature hash type missing or not understood";
58 case SCRIPT_ERR_SIG_DER:
59 return "Non-canonical DER signature";
60 case SCRIPT_ERR_MINIMALDATA:
61 return "Data push larger than necessary";
62 case SCRIPT_ERR_SIG_PUSHONLY:
63 return "Only push operators allowed in signatures";
64 case SCRIPT_ERR_SIG_HIGH_S:
65 return "Non-canonical signature: S value is unnecessarily high";
66 case SCRIPT_ERR_SIG_NULLDUMMY:
67 return "Dummy CHECKMULTISIG argument must be zero";
68 case SCRIPT_ERR_MINIMALIF:
69 return "OP_IF/NOTIF argument must be minimal";
70 case SCRIPT_ERR_SIG_NULLFAIL:
71 return "Signature must be zero for failed CHECK(MULTI)SIG operation";
72 case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS:
73 return "NOPx reserved for soft-fork upgrades";
74 case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM:
75 return "Witness version reserved for soft-fork upgrades";
76 case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_TAPROOT_VERSION:
77 return "Taproot version reserved for soft-fork upgrades";
78 case SCRIPT_ERR_DISCOURAGE_OP_SUCCESS:
79 return "OP_SUCCESSx reserved for soft-fork upgrades";
80 case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_PUBKEYTYPE:
81 return "Public key version reserved for soft-fork upgrades";
82 case SCRIPT_ERR_PUBKEYTYPE:
83 return "Public key is neither compressed or uncompressed";
84 case SCRIPT_ERR_CLEANSTACK:
85 return "Stack size must be exactly one after execution";
86 case SCRIPT_ERR_WITNESS_PROGRAM_WRONG_LENGTH:
87 return "Witness program has incorrect length";
88 case SCRIPT_ERR_WITNESS_PROGRAM_WITNESS_EMPTY:
89 return "Witness program was passed an empty witness";
90 case SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH:
91 return "Witness program hash mismatch";
92 case SCRIPT_ERR_WITNESS_MALLEATED:
93 return "Witness requires empty scriptSig";
94 case SCRIPT_ERR_WITNESS_MALLEATED_P2SH:
95 return "Witness requires only-redeemscript scriptSig";
96 case SCRIPT_ERR_WITNESS_UNEXPECTED:
97 return "Witness provided for non-witness script";
98 case SCRIPT_ERR_WITNESS_PUBKEYTYPE:
99 return "Using non-compressed keys in segwit";
100 case SCRIPT_ERR_SCHNORR_SIG_SIZE:
101 return "Invalid Schnorr signature size";
102 case SCRIPT_ERR_SCHNORR_SIG_HASHTYPE:
103 return "Invalid Schnorr signature hash type";
104 case SCRIPT_ERR_SCHNORR_SIG:
105 return "Invalid Schnorr signature";
106 case SCRIPT_ERR_TAPROOT_WRONG_CONTROL_SIZE:
107 return "Invalid Taproot control block size";
108 case SCRIPT_ERR_TAPSCRIPT_VALIDATION_WEIGHT:
109 return "Too much signature validation relative to witness weight";
110 case SCRIPT_ERR_TAPSCRIPT_CHECKMULTISIG:
111 return "OP_CHECKMULTISIG(VERIFY) is not available in tapscript";
112 case SCRIPT_ERR_TAPSCRIPT_MINIMALIF:
113 return "OP_IF/NOTIF argument must be minimal in tapscript";
114 case SCRIPT_ERR_TAPSCRIPT_EMPTY_PUBKEY:
115 return "Empty public key in tapscript";
116 case SCRIPT_ERR_OP_CODESEPARATOR:
117 return "Using OP_CODESEPARATOR in non-witness script";
118 case SCRIPT_ERR_SIG_FINDANDDELETE:
119 return "Signature is found in scriptCode";
120 case SCRIPT_ERR_SCRIPTNUM:
121 return "Script number overflowed or is non-minimally encoded";
122 case SCRIPT_ERR_UNKNOWN_ERROR:
123 case SCRIPT_ERR_ERROR_COUNT:
124 break;
125 } // no default case, so the compiler can warn about missing cases
126 return "unknown error";
127 }
128