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Add WriteHDKeypath function and move *HDKeypath to util/bip32.{h,cpp}

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Creates new files util/bip32.h and util/bip32.cpp for containing
BIP 32 stuff.
Moves FormatKeyPath from descriptor.cpp to util/bip32.
Adds a wrapper around it to prepent the 'm' for when just the
BIP 32 style keypath is needed.
This commit is contained in:
Andrew Chow 2018-11-06 09:23:43 -05:00
parent c45415f73a
commit e7652d3f64
10 changed files with 95 additions and 57 deletions
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17
src/script/descriptor.cpp
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@ -10,6 +10,7 @@
#include <script/standard.h>
#include <span.h>
#include <util/bip32.h>
#include <util/system.h>
#include <util/strencodings.h>
@ -25,16 +26,6 @@ namespace {
typedef std::vector<uint32_t> KeyPath;
std::string FormatKeyPath(const KeyPath& path)
{
std::string ret;
for (auto i : path) {
ret += strprintf("/%i", (i << 1) >> 1);
if (i >> 31) ret += '\'';
}
return ret;
}
/** Interface for public key objects in descriptors. */
struct PubkeyProvider
{
@ -63,7 +54,7 @@ class OriginPubkeyProvider final : public PubkeyProvider
std::string OriginString() const
{
return HexStr(std::begin(m_origin.fingerprint), std::end(m_origin.fingerprint)) + FormatKeyPath(m_origin.path);
return HexStr(std::begin(m_origin.fingerprint), std::end(m_origin.fingerprint)) + FormatHDKeypath(m_origin.path);
}
public:
@ -184,7 +175,7 @@ public:
}
std::string ToString() const override
{
std::string ret = EncodeExtPubKey(m_extkey) + FormatKeyPath(m_path);
std::string ret = EncodeExtPubKey(m_extkey) + FormatHDKeypath(m_path);
if (IsRange()) {
ret += "/*";
if (m_derive == DeriveType::HARDENED) ret += '\'';
@ -195,7 +186,7 @@ public:
{
CExtKey key;
if (!GetExtKey(arg, key)) return false;
out = EncodeExtKey(key) + FormatKeyPath(m_path);
out = EncodeExtKey(key) + FormatHDKeypath(m_path);
if (IsRange()) {
out += "/*";
if (m_derive == DeriveType::HARDENED) out += '\'';