chenx221/Textractor
1
0
Fork 0
forked from Public-Mirror/Textractor
Code Pull Requests Activity

clean up engine

Browse Source
This commit is contained in:
Akash Mozumdar 2018-08-03 15:04:48 -04:00
parent 1b9febb4a5
commit df9fb07395
2 changed files with 18 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
vnrhook/src/engine/engine.cc
View File

@ -7655,19 +7655,17 @@ void InsertBrunsHook()
HookParam hp = {};
hp.offset = 4;
hp.length_offset = 1;
hp.type = USING_UNICODE|MODULE_OFFSET|FUNCTION_OFFSET;
// jichi 12/27/2013: This function does not work for the latest bruns games anymore
hp.function = 0x8b24c7bc;
hp.type = USING_UNICODE;
//?push_back@?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QAEXG@Z
if (Util::CheckFile(L"msvcp90.dll"))
hp.module = 0xc9c36a5b; // 3385027163
if (Util::CheckFile(L"msvcp90.dll"))
hp.address = (DWORD)GetProcAddress(GetModuleHandleW(L"msvcp90.dll"), "?push_back@?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QAEXG@Z");
else if (Util::CheckFile(L"msvcp80.dll"))
hp.module = 0xa9c36a5b; // 2848156251
hp.address = (DWORD)GetProcAddress(GetModuleHandleW(L"msvcp80.dll"), "?push_back@?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QAEXG@Z");
else if (Util::CheckFile(L"msvcp100.dll")) // jichi 8/17/2013: MSVCRT 10.0 and 11.0
hp.module = 0xb571d760; // 3044136800;
hp.address = (DWORD)GetProcAddress(GetModuleHandleW(L"msvcp100.dll"), "?push_back@?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QAEXG@Z");
else if (Util::CheckFile(L"msvcp110.dll"))
hp.module = 0xd571d760; // 3581007712;
if (hp.module) {
hp.address = (DWORD)GetProcAddress(GetModuleHandleW(L"msvcp110.dll"), "?push_back@?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@QAEXG@Z");
if (hp.address) {
ConsoleOutput("vnreng: INSERT Brus#1");
NewHook(hp, "Bruns");
}

45
vnrhook/src/hijack/texthook.cc
View File

@ -498,42 +498,19 @@ int TextHook::UnsafeInsertHookCode()
{
//ConsoleOutput("vnrcli:UnsafeInsertHookCode: enter");
enum : int { yes = 0, no = 1 };
// MODULE_OFFSET is set, but there's no module address
// this means that this is an absolute address found on Windows 2000/XP
// we make the address relative to the process base
// we also store the original address in the function field because normally there can not
// exist a function address without a module address
if (hp.type & MODULE_OFFSET && !hp.module) {
DWORD base = GetModuleBase();
hp.function = hp.address;
hp.address -= 0x400000;
hp.address += base;
hp.type &= ~MODULE_OFFSET;
}
else if (hp.module && (hp.type & MODULE_OFFSET)) { // Map hook offset to real address.
if (DWORD base = GetModuleBase(hp.module)) {
if (hp.function && (hp.type & FUNCTION_OFFSET)) {
base = GetExportAddress(base, hp.function);
if (base)
hp.address += base;
else {
currentHook--;
ConsoleOutput("vnrcli:UnsafeInsertHookCode: FAILED: function not found in the export table");
return no;
}
}
else {
hp.address += base;
}
hp.type &= ~(MODULE_OFFSET | FUNCTION_OFFSET);
}
else {
currentHook--;
ConsoleOutput("vnrcli:UnsafeInsertHookCode: FAILED: module not present");
return no;
}
if (hp.module && (hp.type & MODULE_OFFSET)) { // Map hook offset to real address.
if (DWORD base = GetModuleBase(hp.module)) {
hp.address += base;
}
else {
currentHook--;
ConsoleOutput("vnrcli:UnsafeInsertHookCode: FAILED: module not present");
return no;
}
hp.type &= ~MODULE_OFFSET;
}
{
TextHook *it = hookman;
for (int i = 0; (i < currentHook) && it; it++) { // Check if there is a collision.