diff options
| author | Zach Hilman <zachhilman@gmail.com> | 2018-09-30 18:13:02 -0400 |
|---|---|---|
| committer | Zach Hilman <zachhilman@gmail.com> | 2018-10-04 11:32:04 -0400 |
| commit | f62227aa95f96901b75670d3914971593f65f119 (patch) | |
| tree | 8c667ca88014a0764412993f68fd5b11c93036e8 /src/common/hex_util.cpp | |
| parent | f85f2b372807b9785bfe30b2b1e2f342d58bddf6 (diff) | |
hex_util: Add HexVectorToString and HexStringToVector
Converts between bytes and strings when the size is not known at compile time.
Diffstat (limited to 'src/common/hex_util.cpp')
| -rw-r--r-- | src/common/hex_util.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/common/hex_util.cpp b/src/common/hex_util.cpp index 589ae5cbfc..e516e5bbdc 100644 --- a/src/common/hex_util.cpp +++ b/src/common/hex_util.cpp @@ -18,6 +18,25 @@ u8 ToHexNibble(char c1) { return 0; } +std::vector<u8> HexStringToVector(std::string_view str, bool little_endian) { + std::vector<u8> out(str.size() / 2); + if (little_endian) { + for (std::size_t i = str.size() - 2; i <= str.size(); i -= 2) + out[i / 2] = (ToHexNibble(str[i]) << 4) | ToHexNibble(str[i + 1]); + } else { + for (std::size_t i = 0; i < str.size(); i += 2) + out[i / 2] = (ToHexNibble(str[i]) << 4) | ToHexNibble(str[i + 1]); + } + return out; +} + +std::string HexVectorToString(std::vector<u8> vector, bool upper) { + std::string out; + for (u8 c : vector) + out += fmt::format(upper ? "{:02X}" : "{:02x}", c); + return out; +} + std::array<u8, 16> operator""_array16(const char* str, std::size_t len) { if (len != 32) { LOG_ERROR(Common, |