Mitigate Wine _stricmp issue.

Makefile

@@ -28,6 +28,7 @@ LDFLAGS := \
 OBJS := \
 	obj/dll/rugburn/main.o \
 	obj/hooks/kernel32/inject.o \
+	obj/hooks/msvcr100/msvcr100.o \
 	obj/hooks/user32/window.o \
 	obj/hooks/ws2_32/redir.o \
 	obj/hooks/wininet/netredir.o \

src/hooks/hooks.c

@@ -1,12 +1,14 @@
 #include "hooks.h"
 
 #include "kernel32/inject.h"
+#include "msvcr100/msvcr100.h"
 #include "user32/window.h"
 #include "wininet/netredir.h"
 #include "ws2_32/redir.h"
 
 VOID InitHooks() {
     InitInjectHook();
+    InitMsvcr100Hook();
     InitWindowHook();
     InitNetRedirHook();
     InitRedirHook();

src/hooks/msvcr100/msvcr100.c

@@ -0,0 +1,56 @@
+#include "msvcr100.h"
+#include "../../patch.h"
+
+typedef int (__cdecl* STRICMPFNPTR)(const char *s1, const char *s2);
+typedef char *(__cdecl* SETLOCALEFNPTR)(int category, const char *locale);
+
+static HMODULE hMsvcr100Module = NULL;
+static STRICMPFNPTR pStricmp = NULL;
+static SETLOCALEFNPTR pSetLocale = NULL;
+
+int lower(int c) {
+    return (c >= 'A' && c <= 'Z') ? c + 'a' - 'A' : c;
+}
+
+int __cdecl StricmpHook(const char *s1, const char *s2) {
+    int result = 0;
+    if (!s1 || !s2) return 0x7fffffff;
+    while (!result) {
+        result = lower(*s1) - lower(*s2);
+        if (!*s1 || !*s2) break;
+        s1++, s2++;
+    }
+    return result;
+}
+
+VOID InitMsvcr100Hook() {
+    const char *oldlocale;
+    int result;
+
+    hMsvcr100Module = LoadLib("msvcr100");
+    if (!hMsvcr100Module) {
+        Log("Not checking for Wine _stricmp bug: msvcr100 not found.\n");
+        return;
+    }
+
+    pStricmp = GetProc(hMsvcr100Module, "_stricmp");
+    pSetLocale = GetProc(hMsvcr100Module, "setlocale");
+    oldlocale = pSetLocale(2, NULL);
+    if (!pStricmp || !pSetLocale) {
+        Log("Not checking for Wine _stricmp bug: msvcr100 functions not found.\n");
+    }
+
+    Log("Checking for Wine _stricmp bug; current locale: %s - Temporarily switching to Kor.\n", oldlocale);
+
+    pSetLocale(2, "Kor");
+    result = pStricmp("\xB3\xA1", "\xBC\xBC");
+    pSetLocale(2, oldlocale);
+
+    if (result == 0) {
+        Log("Wine _stricmp bug detected; mitigating.\n");
+        pStricmp = HookProc(hMsvcr100Module, "_stricmp", StricmpHook);
+    } else {
+        Log("Wine _stricmp bug not detected.\n");
+    }
+}
+

src/hooks/msvcr100/msvcr100.h

@@ -0,0 +1,8 @@
+#ifndef HOOKS_MSVCR100_MSVCR100_H
+#define HOOKS_MSVCR100_MSVCR100_H
+
+#include "../../common.h"
+
+VOID InitMsvcr100Hook();
+
+#endif