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Juggle new/dat/old on symlink target

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This commit is contained in:
Soreepeong 2022-09-14 14:46:00 +09:00
parent 921cf0087c
commit 470850dd8c
2 changed files with 14 additions and 4 deletions
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1
Dalamud.Boot/pch.h
View file

@ -27,6 +27,7 @@
// C++ Standard Libraries
#include <cassert>
#include <chrono>
#include <cstdio>
#include <deque>
#include <filesystem>

17
Dalamud.Boot/xivfixes.cpp
View file

@ -427,7 +427,8 @@ void xivfixes::backup_userdata_save(bool bApply) {
LPSECURITY_ATTRIBUTES lpSecurityAttributes,
DWORD dwCreationDisposition,
DWORD dwFlagsAndAttributes,
HANDLE hTemplateFile)->HANDLE {
HANDLE hTemplateFile) noexcept {
if (dwDesiredAccess != GENERIC_WRITE)
return s_hookCreateFileW->call_original(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
@ -436,9 +437,17 @@ void xivfixes::backup_userdata_save(bool bApply) {
if (ext != ".dat" && ext != ".cfg")
return s_hookCreateFileW->call_original(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
for (auto i = 0; i < 16; i++) {
std::error_code ec;
auto resolved = read_symlink(path, ec);
if (ec || resolved == path)
break;
path = std::move(resolved);
}
std::filesystem::path temporaryPath = path;
temporaryPath.replace_extension(path.extension().wstring() + L".new");
const auto handle = s_hookCreateFileW->call_original(temporaryPath.c_str(), GENERIC_READ | GENERIC_WRITE | DELETE, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
temporaryPath.replace_extension(std::format(L"{}.new.{:X}.{:X}", path.extension().c_str(), std::chrono::duration_cast<std::chrono::microseconds>(std::chrono::system_clock::now().time_since_epoch()).count(), GetCurrentProcessId()));
const auto handle = s_hookCreateFileW->call_original(temporaryPath.c_str(), GENERIC_READ | GENERIC_WRITE | DELETE, dwShareMode, lpSecurityAttributes, CREATE_ALWAYS, dwFlagsAndAttributes, hTemplateFile);
if (handle == INVALID_HANDLE_VALUE)
return handle;
@ -448,7 +457,7 @@ void xivfixes::backup_userdata_save(bool bApply) {
return handle;
});
s_hookCloseHandle->set_detour([](HANDLE handle) {
s_hookCloseHandle->set_detour([](HANDLE handle) noexcept {
const auto lock = std::lock_guard(s_mtx);
if (const auto it = s_handles.find(handle); it != s_handles.end()) {
std::filesystem::path tempPath(std::move(it->second.first));