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authorJeff Garzik <jgarzik@bitpay.com>2014-07-29 11:12:44 -0400
committerJeff Garzik <jgarzik@bitpay.com>2014-07-29 11:13:27 -0400
commitcbe39a38526a6c17619d02cc697b80ebfd57203b (patch)
tree41ee0470ef9b6f3c87a4bb509c5b25ddba84c3a5 /src/core_write.cpp
parent3ce7e669e3f90b3099a969ea5ffe3fa2643f4ed8 (diff)
Add "bitcoin-tx" command line utility and supporting modules.
This is a simple utility that provides command line manipulation of a hex-encoded TX. The utility takes a hex string on the command line as input, performs zero or more mutations, and outputs a hex string to standard output. This utility is also an intentional exercise of the "bitcoin library" concept. It is designed to require minimal libraries, and works entirely without need for any RPC or P2P communication. See "bitcoin-tx --help" for command and options summary.
Diffstat (limited to 'src/core_write.cpp')
-rw-r--r--src/core_write.cpp74
1 files changed, 74 insertions, 0 deletions
diff --git a/src/core_write.cpp b/src/core_write.cpp
index 960974df89..2eb220779f 100644
--- a/src/core_write.cpp
+++ b/src/core_write.cpp
@@ -1,8 +1,12 @@
+#include <vector>
#include "core_io.h"
+#include "univalue/univalue.h"
+#include "script.h"
#include "core.h"
#include "serialize.h"
#include "util.h"
+#include "base58.h"
using namespace std;
@@ -13,3 +17,73 @@ string EncodeHexTx(const CTransaction& tx)
return HexStr(ssTx.begin(), ssTx.end());
}
+void ScriptPubKeyToUniv(const CScript& scriptPubKey,
+ UniValue& out, bool fIncludeHex)
+{
+ txnouttype type;
+ vector<CTxDestination> addresses;
+ int nRequired;
+
+ out.pushKV("asm", scriptPubKey.ToString());
+ if (fIncludeHex)
+ out.pushKV("hex", HexStr(scriptPubKey.begin(), scriptPubKey.end()));
+
+ if (!ExtractDestinations(scriptPubKey, type, addresses, nRequired)) {
+ out.pushKV("type", GetTxnOutputType(type));
+ return;
+ }
+
+ out.pushKV("reqSigs", nRequired);
+ out.pushKV("type", GetTxnOutputType(type));
+
+ UniValue a(UniValue::VARR);
+ BOOST_FOREACH(const CTxDestination& addr, addresses)
+ a.push_back(CBitcoinAddress(addr).ToString());
+ out.pushKV("addresses", a);
+}
+
+void TxToUniv(const CTransaction& tx, const uint256& hashBlock, UniValue& entry)
+{
+ entry.pushKV("txid", tx.GetHash().GetHex());
+ entry.pushKV("version", tx.nVersion);
+ entry.pushKV("locktime", (int64_t)tx.nLockTime);
+
+ UniValue vin(UniValue::VARR);
+ BOOST_FOREACH(const CTxIn& txin, tx.vin) {
+ UniValue in(UniValue::VOBJ);
+ if (tx.IsCoinBase())
+ in.pushKV("coinbase", HexStr(txin.scriptSig.begin(), txin.scriptSig.end()));
+ else {
+ in.pushKV("txid", txin.prevout.hash.GetHex());
+ in.pushKV("vout", (int64_t)txin.prevout.n);
+ UniValue o(UniValue::VOBJ);
+ o.pushKV("asm", txin.scriptSig.ToString());
+ o.pushKV("hex", HexStr(txin.scriptSig.begin(), txin.scriptSig.end()));
+ in.pushKV("scriptSig", o);
+ }
+ in.pushKV("sequence", (int64_t)txin.nSequence);
+ vin.push_back(in);
+ }
+ entry.pushKV("vin", vin);
+
+ UniValue vout(UniValue::VARR);
+ for (unsigned int i = 0; i < tx.vout.size(); i++) {
+ const CTxOut& txout = tx.vout[i];
+
+ UniValue out(UniValue::VOBJ);
+
+ UniValue outValue(UniValue::VNUM, FormatMoney(txout.nValue));
+ out.pushKV("value", outValue);
+ out.pushKV("n", (int64_t)i);
+
+ UniValue o(UniValue::VOBJ);
+ ScriptPubKeyToUniv(txout.scriptPubKey, o, true);
+ out.pushKV("scriptPubKey", o);
+ vout.push_back(out);
+ }
+ entry.pushKV("vout", vout);
+
+ if (hashBlock != 0)
+ entry.pushKV("blockhash", hashBlock.GetHex());
+}
+