mirror of
https://github.com/opnsense/src.git
synced 2026-02-20 16:30:53 -05:00
1c3bbb013d
Notable upstream commits (upstream revision in parens): - Add a JSON producer to LLDB (228636) - Don't crash on bad DWARF expression (228729) - Add support of DWARFv3 DW_OP_form_tls_address (231342) - Assembly profiler for MIPS64 (232619) - Handle FreeBSD/arm64 core files (233273) - Read/Write register for MIPS64 (233685) - Rework LLDB system initialization (233758) - SysV ABI for aarch64 (236098) - MIPS software single stepping (236696) - FreeBSD/arm live debugging support (237303) - Assembly profiler for mips32 (237420) - Parse function name from DWARF DW_AT_abstract_origin (238307) - Improve LLDB prompt handling (238313) - Add real time signals support to FreeBSDSignals (238316) - Fix race in IOHandlerProcessSTDIO (238423) - MIPS64 Branch instruction emulation for SW single stepping (238820) - Improve OSType initialization in elf object file's arch_spec (239148) - Emulation of MIPS64 floating-point branch instructions (239996) - ABI Plugin for MIPS32 (239997) - ABI Plugin for MIPS64 (240123) - MIPS32 branch emulation and single stepping (240373) - Improve instruction emulation based stack unwinding on ARM (240533) - Add branch emulation to aarch64 instruction emulator (240769)
103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
//===-- FileSystem.cpp ------------------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "lldb/Host/FileSystem.h"
|
|
|
|
#include "llvm/Support/MD5.h"
|
|
|
|
#include <algorithm>
|
|
#include <fstream>
|
|
#include <vector>
|
|
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
|
|
namespace {
|
|
|
|
bool
|
|
CalcMD5(const FileSpec &file_spec, uint64_t offset, uint64_t length, llvm::MD5::MD5Result &md5_result)
|
|
{
|
|
llvm::MD5 md5_hash;
|
|
std::ifstream file(file_spec.GetPath(), std::ios::binary);
|
|
if (!file.is_open())
|
|
return false;
|
|
|
|
if (offset > 0)
|
|
file.seekg(offset, file.beg);
|
|
|
|
std::vector<char> read_buf(4096);
|
|
uint64_t total_read_bytes = 0;
|
|
while (!file.eof())
|
|
{
|
|
const uint64_t to_read = (length > 0) ?
|
|
std::min(static_cast<uint64_t>(read_buf.size()), length - total_read_bytes) :
|
|
read_buf.size();
|
|
if (to_read == 0)
|
|
break;
|
|
|
|
file.read(&read_buf[0], to_read);
|
|
const auto read_bytes = file.gcount();
|
|
if (read_bytes == 0)
|
|
break;
|
|
|
|
md5_hash.update(llvm::StringRef(&read_buf[0], read_bytes));
|
|
total_read_bytes += read_bytes;
|
|
}
|
|
|
|
md5_hash.final(md5_result);
|
|
return true;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
bool
|
|
FileSystem::CalculateMD5(const FileSpec &file_spec, uint64_t &low, uint64_t &high)
|
|
{
|
|
return CalculateMD5(file_spec, 0, 0, low, high);
|
|
}
|
|
|
|
bool
|
|
FileSystem::CalculateMD5(const FileSpec &file_spec,
|
|
uint64_t offset,
|
|
uint64_t length,
|
|
uint64_t &low,
|
|
uint64_t &high)
|
|
{
|
|
llvm::MD5::MD5Result md5_result;
|
|
if (!CalcMD5(file_spec, offset, length, md5_result))
|
|
return false;
|
|
|
|
const auto uint64_res = reinterpret_cast<const uint64_t*>(md5_result);
|
|
high = uint64_res[0];
|
|
low = uint64_res[1];
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
FileSystem::CalculateMD5AsString(const FileSpec &file_spec, std::string& digest_str)
|
|
{
|
|
return CalculateMD5AsString(file_spec, 0, 0, digest_str);
|
|
}
|
|
|
|
bool
|
|
FileSystem::CalculateMD5AsString(const FileSpec &file_spec,
|
|
uint64_t offset,
|
|
uint64_t length,
|
|
std::string& digest_str)
|
|
{
|
|
llvm::MD5::MD5Result md5_result;
|
|
if (!CalcMD5(file_spec, offset, length, md5_result))
|
|
return false;
|
|
|
|
llvm::SmallString<32> result_str;
|
|
llvm::MD5::stringifyResult(md5_result, result_str);
|
|
digest_str = result_str.c_str();
|
|
return true;
|
|
}
|