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improve config loading and prevent crashes

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This commit is contained in:
Akash Mozumdar 2023-04-21 16:49:22 -04:00
parent 4cebe9462f
commit 60a5d74eda
4 changed files with 14 additions and 14 deletions
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8
texthook/engine/engine.cc
View File

@ -17001,7 +17001,7 @@ void InsertMonoHook(HMODULE h)
if (!getDomain || !getName || !getJitInfo) goto failed; if (!getDomain || !getName || !getJitInfo) goto failed;
static auto domain = getDomain(); static auto domain = getDomain();
if (!domain) goto failed; if (!domain) goto failed;
ConsoleOutput("Textractor: Mono Dynamic ENTER (hooks = %s)", loadedConfig ? loadedConfig : "brute force"); ConsoleOutput("Textractor: Mono Dynamic ENTER (hooks = %s)", *loadedConfig ? loadedConfig : "brute force");
const BYTE prolog[] = { 0x55, 0x8b, 0xec }; const BYTE prolog[] = { 0x55, 0x8b, 0xec };
for (auto addr : Util::SearchMemory(prolog, sizeof(prolog), PAGE_EXECUTE_READWRITE)) for (auto addr : Util::SearchMemory(prolog, sizeof(prolog), PAGE_EXECUTE_READWRITE))
{ {
@ -17016,7 +17016,7 @@ void InsertMonoHook(HMODULE h)
HookParam hp = {}; HookParam hp = {};
hp.address = addr; hp.address = addr;
hp.type = USING_UNICODE | FULL_STRING; hp.type = USING_UNICODE | FULL_STRING;
if (!loadedConfig) hp.type |= KNOWN_UNSTABLE; if (!*loadedConfig) hp.type |= KNOWN_UNSTABLE;
hp.offset = 4; hp.offset = 4;
char nameForUser[HOOK_NAME_SIZE] = {}; char nameForUser[HOOK_NAME_SIZE] = {};
strncpy_s(nameForUser, name + 1, HOOK_NAME_SIZE - 1); strncpy_s(nameForUser, name + 1, HOOK_NAME_SIZE - 1);
@ -17034,7 +17034,7 @@ void InsertMonoHook(HMODULE h)
__except (EXCEPTION_EXECUTE_HANDLER) {} __except (EXCEPTION_EXECUTE_HANDLER) {}
}(addr); }(addr);
} }
if (!loadedConfig) ConsoleOutput("Textractor: Mono Dynamic used brute force: if performance issues arise, please specify the correct hook in the game configuration"); if (!*loadedConfig) ConsoleOutput("Textractor: Mono Dynamic used brute force: if performance issues arise, please specify the correct hook in the game configuration");
return true; return true;
failed: failed:
ConsoleOutput("Textractor: Mono Dynamic failed"); ConsoleOutput("Textractor: Mono Dynamic failed");
@ -17091,7 +17091,7 @@ bool InsertMonoHooks()
if (FARPROC addr = ::GetProcAddress(h, func.functionName)) { if (FARPROC addr = ::GetProcAddress(h, func.functionName)) {
hp.address = (DWORD)addr; hp.address = (DWORD)addr;
hp.type = func.hookType; hp.type = func.hookType;
if (loadedConfig) hp.type |= HOOK_EMPTY; if (*loadedConfig) hp.type |= HOOK_EMPTY;
hp.filter_fun = NoAsciiFilter; hp.filter_fun = NoAsciiFilter;
hp.offset = func.textIndex * 4; hp.offset = func.textIndex * 4;
hp.length_offset = func.lengthIndex * 4; hp.length_offset = func.lengthIndex * 4;

2
texthook/engine/engine.h
View File

@ -14,7 +14,7 @@ namespace Engine {
// Global variables // Global variables
extern wchar_t *processName, // cached extern wchar_t *processName, // cached
processPath[MAX_PATH]; // cached processPath[MAX_PATH]; // cached
inline const char *requestedEngine = nullptr, *loadedConfig = nullptr; inline const char *requestedEngine = "", * loadedConfig = "";
bool InsertMonoHooks(); // Mono bool InsertMonoHooks(); // Mono

12
texthook/engine/match.cc
View File

@ -45,13 +45,13 @@ namespace Engine
if (AutoHandle<> configFile = CreateFileW(configFilename, GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL)) if (AutoHandle<> configFile = CreateFileW(configFilename, GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL))
{ {
ReadFile(configFile, configFileData, sizeof(configFileData) - 1, DUMMY, nullptr); ReadFile(configFile, configFileData, sizeof(configFileData) - 1, DUMMY, nullptr);
if (strncmp(configFileData, "Engine:", 7) == 0) if (strnicmp(configFileData, "engine:", 7) == 0)
{ {
if (loadedConfig = strchr(configFileData, '\n')) *(char*)loadedConfig++ = 0; if (const char* config = strchr(configFileData, '\n')) *(char*)(loadedConfig = config)++ = 0;
ConsoleOutput("Textractor: Engine = %s", requestedEngine = configFileData + 7); ConsoleOutput("Textractor: Engine = %s", requestedEngine = strlwr(configFileData + 7));
} }
else loadedConfig = configFileData; else loadedConfig = configFileData;
if ((loadedConfig && !*loadedConfig) || strstr(configFileData, "https://")) loadedConfig = nullptr; if (!*loadedConfig || strstr(configFileData, "https://")) loadedConfig = "";
else ConsoleOutput("Textractor: game configuration loaded"); else ConsoleOutput("Textractor: game configuration loaded");
} }
@ -67,14 +67,14 @@ namespace Engine
spDefault.maxAddress = processStopAddress; spDefault.maxAddress = processStopAddress;
ConsoleOutput("Textractor: hijacking process located from 0x%p to 0x%p", processStartAddress, processStopAddress); ConsoleOutput("Textractor: hijacking process located from 0x%p to 0x%p", processStartAddress, processStopAddress);
DetermineEngineType(); if (!strstr(requestedEngine, "none")) DetermineEngineType();
if (processStartAddress + 0x40000 > processStopAddress) ConsoleOutput("Textractor: WARNING injected process is very small, possibly a dummy!"); if (processStartAddress + 0x40000 > processStopAddress) ConsoleOutput("Textractor: WARNING injected process is very small, possibly a dummy!");
}(), 0); }(), 0);
} }
bool ShouldMonoHook(const char* name) bool ShouldMonoHook(const char* name)
{ {
if (!loadedConfig) return strstr(name, "string:") && !strstr(name, "string:mem"); if (!*loadedConfig) return strstr(name, "string:") && !strstr(name, "string:mem");
for (const char* hook = loadedConfig; hook; hook = strchr(hook + 1, '\t')) for (const char* hook = loadedConfig; hook; hook = strchr(hook + 1, '\t'))
for (auto start = name; *start; ++start) for (auto start = name; *start; ++start)
for (int i = 0; ; ++i) for (int i = 0; ; ++i)

6
texthook/engine/match64.cc
View File

@ -80,7 +80,7 @@ namespace Engine
if (!getDomain || !getName || !getJitInfo) goto failed; if (!getDomain || !getName || !getJitInfo) goto failed;
static auto domain = getDomain(); static auto domain = getDomain();
if (!domain) goto failed; if (!domain) goto failed;
ConsoleOutput("Textractor: Mono Dynamic ENTER (hooks = %s)", loadedConfig ? loadedConfig : "brute force"); ConsoleOutput("Textractor: Mono Dynamic ENTER (hooks = %s)", *loadedConfig ? loadedConfig : "brute force");
const BYTE prolog1[] = { 0x55, 0x48, 0x8b, 0xec }; const BYTE prolog1[] = { 0x55, 0x48, 0x8b, 0xec };
const BYTE prolog2[] = { 0x48, 0x83, 0xec }; const BYTE prolog2[] = { 0x48, 0x83, 0xec };
for (auto [prolog, size] : Array<const BYTE*, size_t>{ { prolog1, sizeof(prolog1) }, { prolog2, sizeof(prolog2) } }) for (auto [prolog, size] : Array<const BYTE*, size_t>{ { prolog1, sizeof(prolog1) }, { prolog2, sizeof(prolog2) } })
@ -97,7 +97,7 @@ namespace Engine
HookParam hp = {}; HookParam hp = {};
hp.address = addr; hp.address = addr;
hp.type = USING_STRING | USING_UNICODE | FULL_STRING; hp.type = USING_STRING | USING_UNICODE | FULL_STRING;
if (!loadedConfig) hp.type |= KNOWN_UNSTABLE; if (!*loadedConfig) hp.type |= KNOWN_UNSTABLE;
hp.offset = -0x20; // rcx hp.offset = -0x20; // rcx
hp.padding = 20; hp.padding = 20;
char nameForUser[HOOK_NAME_SIZE] = {}; char nameForUser[HOOK_NAME_SIZE] = {};
@ -119,7 +119,7 @@ namespace Engine
}(addr); }(addr);
} }
if (!loadedConfig) ConsoleOutput("Textractor: Mono Dynamic used brute force: if performance issues arise, please specify the correct hook in the game configuration"); if (!*loadedConfig) ConsoleOutput("Textractor: Mono Dynamic used brute force: if performance issues arise, please specify the correct hook in the game configuration");
return true; return true;
failed: failed:
ConsoleOutput("Textractor: Mono Dynamic failed"); ConsoleOutput("Textractor: Mono Dynamic failed");