diff options
Diffstat (limited to 'src/util')
| -rw-r--r-- | src/util/bip32.cpp | 66 | ||||
| -rw-r--r-- | src/util/bip32.h | 19 | ||||
| -rw-r--r-- | src/util/strencodings.cpp | 41 | ||||
| -rw-r--r-- | src/util/strencodings.h | 3 |
4 files changed, 85 insertions, 44 deletions
diff --git a/src/util/bip32.cpp b/src/util/bip32.cpp new file mode 100644 index 0000000000..6f176dd5ec --- /dev/null +++ b/src/util/bip32.cpp @@ -0,0 +1,66 @@ +// Copyright (c) 2019 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include <sstream> +#include <stdio.h> +#include <tinyformat.h> +#include <util/bip32.h> +#include <util/strencodings.h> + + +bool ParseHDKeypath(const std::string& keypath_str, std::vector<uint32_t>& keypath) +{ + std::stringstream ss(keypath_str); + std::string item; + bool first = true; + while (std::getline(ss, item, '/')) { + if (item.compare("m") == 0) { + if (first) { + first = false; + continue; + } + return false; + } + // Finds whether it is hardened + uint32_t path = 0; + size_t pos = item.find("'"); + if (pos != std::string::npos) { + // The hardened tick can only be in the last index of the string + if (pos != item.size() - 1) { + return false; + } + path |= 0x80000000; + item = item.substr(0, item.size() - 1); // Drop the last character which is the hardened tick + } + + // Ensure this is only numbers + if (item.find_first_not_of( "0123456789" ) != std::string::npos) { + return false; + } + uint32_t number; + if (!ParseUInt32(item, &number)) { + return false; + } + path |= number; + + keypath.push_back(path); + first = false; + } + return true; +} + +std::string FormatHDKeypath(const std::vector<uint32_t>& path) +{ + std::string ret; + for (auto i : path) { + ret += strprintf("/%i", (i << 1) >> 1); + if (i >> 31) ret += '\''; + } + return ret; +} + +std::string WriteHDKeypath(const std::vector<uint32_t>& keypath) +{ + return "m" + FormatHDKeypath(keypath); +} diff --git a/src/util/bip32.h b/src/util/bip32.h new file mode 100644 index 0000000000..7e58b79f38 --- /dev/null +++ b/src/util/bip32.h @@ -0,0 +1,19 @@ +// Copyright (c) 2019 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_UTIL_BIP32_H +#define BITCOIN_UTIL_BIP32_H + +#include <attributes.h> +#include <string> +#include <vector> + +/** Parse an HD keypaths like "m/7/0'/2000". */ +NODISCARD bool ParseHDKeypath(const std::string& keypath_str, std::vector<uint32_t>& keypath); + +/** Write HD keypaths as strings */ +std::string WriteHDKeypath(const std::vector<uint32_t>& keypath); +std::string FormatHDKeypath(const std::vector<uint32_t>& path); + +#endif // BITCOIN_UTIL_BIP32_H diff --git a/src/util/strencodings.cpp b/src/util/strencodings.cpp index b55547bc63..0acbb4f117 100644 --- a/src/util/strencodings.cpp +++ b/src/util/strencodings.cpp @@ -546,47 +546,6 @@ bool ParseFixedPoint(const std::string &val, int decimals, int64_t *amount_out) return true; } -bool ParseHDKeypath(const std::string& keypath_str, std::vector<uint32_t>& keypath) -{ - std::stringstream ss(keypath_str); - std::string item; - bool first = true; - while (std::getline(ss, item, '/')) { - if (item.compare("m") == 0) { - if (first) { - first = false; - continue; - } - return false; - } - // Finds whether it is hardened - uint32_t path = 0; - size_t pos = item.find("'"); - if (pos != std::string::npos) { - // The hardened tick can only be in the last index of the string - if (pos != item.size() - 1) { - return false; - } - path |= 0x80000000; - item = item.substr(0, item.size() - 1); // Drop the last character which is the hardened tick - } - - // Ensure this is only numbers - if (item.find_first_not_of( "0123456789" ) != std::string::npos) { - return false; - } - uint32_t number; - if (!ParseUInt32(item, &number)) { - return false; - } - path |= number; - - keypath.push_back(path); - first = false; - } - return true; -} - void Downcase(std::string& str) { std::transform(str.begin(), str.end(), str.begin(), [](char c){return ToLower(c);}); diff --git a/src/util/strencodings.h b/src/util/strencodings.h index 59eefff566..cf77044094 100644 --- a/src/util/strencodings.h +++ b/src/util/strencodings.h @@ -197,9 +197,6 @@ bool ConvertBits(const O& outfn, I it, I end) { return true; } -/** Parse an HD keypaths like "m/7/0'/2000". */ -NODISCARD bool ParseHDKeypath(const std::string& keypath_str, std::vector<uint32_t>& keypath); - /** * Converts the given character to its lowercase equivalent. * This function is locale independent. It only converts uppercase |