1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2014 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 
ScriptErrorString(const ScriptError serror)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 }
96