client/windows: workaround against registry checks

client/common/Python-dynload.c

@@ -60,6 +60,7 @@ static HMODULE xz_dynload(const char *libname, const char *xzbuf, size_t xzsize,
 BOOL initialize_python(int argc, char *argv[], BOOL is_shared_object) {
     HMODULE hPython = NULL;
     PyObject *py_argv = NULL;
+    PyObject *py_empty_list = NULL;
     dependency_t dependencies[] = DEPENDENCIES;
     resolve_symbol_t resolver = NULL;
     dependency_t *dependency = NULL;
@@ -116,7 +117,8 @@ BOOL initialize_python(int argc, char *argv[], BOOL is_shared_object) {
     PyEval_InitThreads();
     if(!Py_IsInitialized()) {
         char * ppath = Py_GetPath();
-        memset(ppath, '\0', strlen(ppath));
+        if (ppath)
+            memset(ppath, '\0', strlen(ppath));
 
         Py_FileSystemDefaultEncoding = FILE_SYSTEM_ENCODING;
         Py_IgnoreEnvironmentFlag = 1;
@@ -131,7 +133,13 @@ BOOL initialize_python(int argc, char *argv[], BOOL is_shared_object) {
 
     restore_state = PyGILState_Ensure();
 
-    PySys_SetPath("");
+    py_empty_list = PyList_New(0);
+    if (!py_empty_list) {
+        dprint("Couldn't allocate list for sys.path\n");
+        goto lbExit1;
+    }
+
+    PySys_SetObject("path", py_empty_list);
 
     dprint("SET ARGV (ARGC=%d; SHARED? %d)\n", argc, is_shared_object);
 

client/gen_resource_header.py

@@ -10,6 +10,14 @@ MAX_CHAR_PER_LINE = 50
 
 ReflectiveLoaderSymName = 'ReflectiveLoader'
 
+ZERO_STRINGS = [
+    'Software\\Python\\PythonCore'
+]
+
+ZERO_STRINGS.extend([
+    z.encode('utf-16le') for z in ZERO_STRINGS
+])
+
 
 if __name__ == "__main__":
     h_file = ""
@@ -20,6 +28,9 @@ if __name__ == "__main__":
 
     with open(sys.argv[1], "rb") as f:
         file_bytes = f.read()
+        for z in ZERO_STRINGS:
+            if z in file_bytes:
+                file_bytes = file_bytes.replace(z, '\00' * len(z))
 
     try:
         image_base = 0

client/mktab.py

@@ -5,7 +5,6 @@ decls = '''
 void, Py_InitializeEx, (int)
 void, Py_Finalize, (void)
 char *, Py_GetPath, (void)
-void, PySys_SetPath, (const char *)
 void, Py_SetPythonHome, (const char *)
 void, Py_SetProgramName, (const char *)
 PyObject *, PyMarshal_ReadObjectFromString, (char *, Py_ssize_t)