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.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/core_io.h b/src/core_io.h
index 528c472803..8a7d580570 100644
--- a/src/core_io.h
+++ b/src/core_io.h
@@ -3,14 +3,21 @@
 
 #include <string>
 
+class uint256;
 class CScript;
 class CTransaction;
+class UniValue;
 
 // core_read.cpp
 extern CScript ParseScript(std::string s);
 extern bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx);
+extern uint256 ParseHashUV(const UniValue& v, const std::string& strName);
+extern std::vector<unsigned char> ParseHexUV(const UniValue& v, const std::string& strName);
 
 // core_write.cpp
 extern std::string EncodeHexTx(const CTransaction& tx);
+extern void ScriptPubKeyToUniv(const CScript& scriptPubKey,
+                        UniValue& out, bool fIncludeHex);
+extern void TxToUniv(const CTransaction& tx, const uint256& hashBlock, UniValue& entry);
 
 #endif // __BITCOIN_CORE_IO_H__