1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2018 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 #ifndef BITCOIN_SCRIPT_NAMECOINCONSENSUS_H
7 #define BITCOIN_SCRIPT_NAMECOINCONSENSUS_H
8 
9 #include <stdint.h>
10 
11 #if defined(BUILD_BITCOIN_INTERNAL) && defined(HAVE_CONFIG_H)
12 #include <config/bitcoin-config.h>
13   #if defined(_WIN32)
14     #if defined(DLL_EXPORT)
15       #if defined(HAVE_FUNC_ATTRIBUTE_DLLEXPORT)
16         #define EXPORT_SYMBOL __declspec(dllexport)
17       #else
18         #define EXPORT_SYMBOL
19       #endif
20     #endif
21   #elif defined(HAVE_FUNC_ATTRIBUTE_VISIBILITY)
22     #define EXPORT_SYMBOL __attribute__ ((visibility ("default")))
23   #endif
24 #elif defined(MSC_VER) && !defined(STATIC_LIBNAMECOINCONSENSUS)
25   #define EXPORT_SYMBOL __declspec(dllimport)
26 #endif
27 
28 #ifndef EXPORT_SYMBOL
29   #define EXPORT_SYMBOL
30 #endif
31 
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35 
36 #define NAMECOINCONSENSUS_API_VER 1
37 
38 typedef enum namecoinconsensus_error_t
39 {
40     namecoinconsensus_ERR_OK = 0,
41     namecoinconsensus_ERR_TX_INDEX,
42     namecoinconsensus_ERR_TX_SIZE_MISMATCH,
43     namecoinconsensus_ERR_TX_DESERIALIZE,
44     namecoinconsensus_ERR_AMOUNT_REQUIRED,
45     namecoinconsensus_ERR_INVALID_FLAGS,
46 } namecoinconsensus_error;
47 
48 /** Script verification flags */
49 enum
50 {
51     namecoinconsensus_SCRIPT_FLAGS_VERIFY_NONE                = 0,
52     namecoinconsensus_SCRIPT_FLAGS_VERIFY_P2SH                = (1U << 0), // evaluate P2SH (BIP16) subscripts
53     namecoinconsensus_SCRIPT_FLAGS_VERIFY_DERSIG              = (1U << 2), // enforce strict DER (BIP66) compliance
54     namecoinconsensus_SCRIPT_FLAGS_VERIFY_NULLDUMMY           = (1U << 4), // enforce NULLDUMMY (BIP147)
55     namecoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKLOCKTIMEVERIFY = (1U << 9), // enable CHECKLOCKTIMEVERIFY (BIP65)
56     namecoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKSEQUENCEVERIFY = (1U << 10), // enable CHECKSEQUENCEVERIFY (BIP112)
57     namecoinconsensus_SCRIPT_FLAGS_VERIFY_WITNESS             = (1U << 11), // enable WITNESS (BIP141)
58     namecoinconsensus_SCRIPT_FLAGS_VERIFY_ALL                 = namecoinconsensus_SCRIPT_FLAGS_VERIFY_P2SH | namecoinconsensus_SCRIPT_FLAGS_VERIFY_DERSIG |
59                                                                 namecoinconsensus_SCRIPT_FLAGS_VERIFY_NULLDUMMY | namecoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKLOCKTIMEVERIFY |
60                                                                 namecoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKSEQUENCEVERIFY | namecoinconsensus_SCRIPT_FLAGS_VERIFY_WITNESS
61 };
62 
63 /// Returns 1 if the input nIn of the serialized transaction pointed to by
64 /// txTo correctly spends the scriptPubKey pointed to by scriptPubKey under
65 /// the additional constraints specified by flags.
66 /// If not nullptr, err will contain an error/success code for the operation
67 EXPORT_SYMBOL int namecoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen,
68                                                  const unsigned char *txTo        , unsigned int txToLen,
69                                                  unsigned int nIn, unsigned int flags, namecoinconsensus_error* err);
70 
71 EXPORT_SYMBOL int namecoinconsensus_verify_script_with_amount(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen, int64_t amount,
72                                     const unsigned char *txTo        , unsigned int txToLen,
73                                     unsigned int nIn, unsigned int flags, namecoinconsensus_error* err);
74 
75 EXPORT_SYMBOL unsigned int namecoinconsensus_version();
76 
77 #ifdef __cplusplus
78 } // extern "C"
79 #endif
80 
81 #undef EXPORT_SYMBOL
82 
83 #endif // BITCOIN_SCRIPT_NAMECOINCONSENSUS_H
84