%module(docstring="IDA Pro Plugin SDK API wrapper",directors="1") idaapi // Suppress 'previous definition of XX' warnings #pragma SWIG nowarn=302 // Enable automatic docstring generation %feature(autodoc); %{ #include #define USE_DANGEROUS_FUNCTIONS 1 #ifdef HAVE_SSIZE_T #define _SSIZE_T_DEFINED 1 #endif #if defined(__NT__) && !defined(_WINDOWS_) #define _WINDOWS_ // kernwin.hpp needs it to declare create_tform() typedef void *HWND; // we don't need to include windows.h for just this definition #endif #include "ida.hpp" #include "idp.hpp" #include "allins.hpp" #include "auto.hpp" #include "bytes.hpp" #include "dbg.hpp" #include "diskio.hpp" #include "entry.hpp" #include "enum.hpp" #include "expr.hpp" #include "frame.hpp" #include "fixup.hpp" #include "funcs.hpp" #include "gdl.hpp" #include "idd.hpp" #include "ints.hpp" #include "kernwin.hpp" #include "lines.hpp" #include "loader.hpp" #include "moves.hpp" #include "netnode.hpp" #include "nalt.hpp" #include "name.hpp" #include "offset.hpp" #include "queue.hpp" #include "search.hpp" #include "srarea.hpp" #include "strlist.hpp" #include "struct.hpp" #include "typeinf.hpp" #include "ua.hpp" #include "xref.hpp" #include "ieee.h" #include "err.h" #include "fpro.h" #include #ifdef __NT__ #include "graph.hpp" #endif // #ifndef PYUL_DEFINED #define PYUL_DEFINED typedef unsigned PY_LONG_LONG pyul_t; #endif //------------------------------------------------------------------------ static const char PY_IDC_CLASS_NAME[] = "py_idc_object_class"; static const char PY_IDC_GLOBAL_VAR_FMT[] = "__py_cvt_gvar_%d"; static const char PY_IDCCVT_ID_ATTR[] = "__idc_cvt_id__"; static const char PY_IDCCVT_VALUE_ATTR[] = "__idc_cvt_value__"; static const char S_PY_IDC_OPAQUE_T[] = "py_idc_cvt_helper_t"; #ifndef __PYWRAPS__ static const char S_PY_IDAAPI_MODNAME[] = "idaapi"; #else static const char S_PY_IDAAPI_MODNAME[] = "__main__"; #endif #define PY_CLSID_CVT_INT64 0 #define PY_CLSID_APPCALL_SKEL_OBJ 1 #define PY_CLSID_CVT_BYREF 2 #define PY_CLSID_LAST 3 //------------------------------------------------------------------------ // PyIdc conversion object ids #define PY_ICID_INT64 0 #define PY_ICID_BYREF 1 #define PY_ICID_OPAQUE 2 static PyObject *py_cvt_helper_module = NULL; static bool pywraps_initialized = false; //------------------------------------------------------------------------ idc_class_t *get_py_idc_cvt_opaque() { return find_idc_class(S_PY_IDC_OPAQUE_T); } //------------------------------------------------------------------------ static const char py_idc_cvt_helper_dtor_args[] = { VT_OBJ, 0 }; static error_t idaapi py_idc_opaque_dtor( idc_value_t *argv, idc_value_t *res) { // Get the value from the object idc_value_t idc_val; VarGetAttr(&argv[0], PY_IDCCVT_VALUE_ATTR, &idc_val); // Extract the Python object reference PyObject *py_obj = (PyObject *)idc_val.pvoid; // Decrease its reference (and eventually destroy it) Py_DECREF(py_obj); return eOk; } //------------------------------------------------------------------------ // This function must be called on initialization bool init_pywraps() { if (pywraps_initialized) return true; // Take a reference to the idaapi python module // (We need it to create instances of certain classes) if (py_cvt_helper_module == NULL) { // Take a reference to the module so we can create the needed class instances py_cvt_helper_module = PyImport_ImportModule(S_PY_IDAAPI_MODNAME); if (py_cvt_helper_module == NULL) return false; } if (get_py_idc_cvt_opaque() == NULL) { // Add the class idc_class_t *idc_cvt_opaque = add_idc_class(S_PY_IDC_OPAQUE_T); if (idc_cvt_opaque == NULL) return false; // Form the dtor name char dtor_name[MAXSTR]; qsnprintf(dtor_name, sizeof(dtor_name), "%s.dtor", S_PY_IDC_OPAQUE_T); // register the dtor function if (!set_idc_func(dtor_name, py_idc_opaque_dtor, py_idc_cvt_helper_dtor_args)) return false; // Link the dtor function to the class set_idc_dtor(idc_cvt_opaque, dtor_name); } pywraps_initialized = true; return true; } //------------------------------------------------------------------------ // This function must be called on de-initialization void deinit_pywraps() { if (!pywraps_initialized) return; pywraps_initialized = false; Py_XDECREF(py_cvt_helper_module); py_cvt_helper_module = NULL; } //------------------------------------------------------------------------ // Gets a class type reference in idaapi // With the class type reference we can create a new instance of that type // This function takes a reference to the idaapi module and keeps the reference static PyObject *get_idaapi_class_reference(const int class_id) { if (class_id >= PY_CLSID_LAST) return NULL; // Some class names. The array is parallel with the PY_CLSID_xxx consts static const char *class_names[]= { "PyIdc_cvt_int64__", "Appcall_object__", "PyIdc_cvt_refclass__" }; return PyObject_GetAttrString(py_cvt_helper_module, class_names[class_id]); } //------------------------------------------------------------------------ // Returns an attribute or NULL // No errors will be set if the attribute did not exist PyObject *PyObject_TryGetAttrString(PyObject *py_var, const char *attr) { if (!PyObject_HasAttrString(py_var, attr)) return NULL; return PyObject_GetAttrString(py_var, attr); } //------------------------------------------------------------------------ // Tries to import a module and clears the exception on failure PyObject *PyImport_TryImportModule(const char *name) { PyObject *result = PyImport_ImportModule(name); if (result != NULL) return result; if (PyErr_Occurred()) PyErr_Clear(); return NULL; } //------------------------------------------------------------------------- // Converts a Python number into an IDC value (32 or 64bits) // The function will first try to convert the number into a 32bit value // If the number does not fit then VT_INT64 will be used // NB: This function cannot properly detect if the Python value should be // converted to a VT_INT64 or not. For example: 2**32-1 = 0xffffffff which // can fit in a C long but Python creates a PyLong object for it. // And because of that we are confused as to whether to convert to 32 or 64 bool PyGetNumber(PyObject *py_var, idc_value_t *idc_var) { if (!(PyInt_CheckExact(py_var) || PyLong_CheckExact(py_var))) return false; // Can we convert to C long? long l = PyInt_AsLong(py_var); if (!PyErr_Occurred()) { idc_var->set_long(l); return true; } // Clear last error PyErr_Clear(); // Can be fit into a C unsigned long? l = (long) PyLong_AsUnsignedLong(py_var); if (!PyErr_Occurred()) { idc_var->set_long(l); return true; } PyErr_Clear(); idc_var->set_int64(PyLong_AsLongLong(py_var)); return true; } //------------------------------------------------------------------------- // Checks if a given object is of sequence type bool PyIsSequenceType(PyObject *obj) { if (!PySequence_Check(obj)) return false; Py_ssize_t sz = PySequence_Size(obj); if (sz == -1 || PyErr_Occurred() != NULL) { PyErr_Clear(); return false; } return true; } //------------------------------------------------------------------------- // Returns the string representation of an object bool PyObjectToString(PyObject *obj, qstring *out) { PyObject *py_str = PyObject_Str(obj); if (py_str != NULL) { *out = PyString_AsString(py_str); Py_DECREF(py_str); return true; } else { out->qclear(); return false; } } //-------------------------------------------------------------------------- // Checks if a Python error occured and fills the out parameter with the // exception string bool PyGetError(qstring *out = NULL) { PyObject *py_err; if ( (py_err = PyErr_Occurred()) == NULL) return false; PyObject *err_type, *err_value, *err_traceback; PyErr_Fetch(&err_type, &err_value, &err_traceback); if ( out != NULL ) PyObjectToString(err_value, out); return true; } //------------------------------------------------------------------------- // Checks if the given py_var is a special PyIdc_cvt_helper object. // It does that by examining the magic attribute and returns its numeric value. // It returns -1 if the object is not a recognized helper object. // Any Python object can be treated as an cvt object if this attribute is created. static int get_pyidc_cvt_type(PyObject *py_var) { // Check if this our special by reference object PyObject *attr = PyObject_TryGetAttrString(py_var, PY_IDCCVT_ID_ATTR); if (attr == NULL) return -1; if (!(PyInt_Check(attr) || PyLong_Check(attr))) { Py_DECREF(attr); return -1; } int r = (int)PyInt_AsLong(attr); Py_DECREF(attr); return r; } //------------------------------------------------------------------------- // Utility function to create opaque / convertible Python <-> IDC variables // The referred Python variable will have its reference increased static bool create_py_idc_opaque_obj(PyObject *py_var, idc_value_t *idc_var) { // Create an IDC object of this special helper class if (VarObject(idc_var, get_py_idc_cvt_opaque()) != eOk) return false; // Store the CVT id idc_value_t idc_val; idc_val.set_long(PY_ICID_OPAQUE); VarSetAttr(idc_var, PY_IDCCVT_ID_ATTR, &idc_val); // Store the value as a PVOID referencing the given Python object idc_val.set_pvoid(py_var); VarSetAttr(idc_var, PY_IDCCVT_VALUE_ATTR, &idc_val); return true; } //------------------------------------------------------------------------- // Converts a Python variable into an IDC variable // This function returns: // 0 - failure // 1 - success // 2 - success but do not decrement the reference of the py_var (used by opaque values) int pyvar_to_idcvar( PyObject *py_var, idc_value_t *idc_var, int *gvar_sn = NULL) { PyObject *attr; // None / NULL if (py_var == NULL || py_var == Py_None) idc_var->set_long(0); // Numbers? else if (PyGetNumber(py_var, idc_var)) return 1; // String else if (PyString_Check(py_var)) idc_var->_set_string(PyString_AsString(py_var), PyString_Size(py_var)); // Float else if (PyBool_Check(py_var)) idc_var->set_long(py_var == Py_True ? 1 : 0); // Boolean else if (PyFloat_Check(py_var)) { double dresult = PyFloat_AsDouble(py_var); ieee_realcvt((void *)&dresult, idc_var->e, 3); idc_var->vtype = VT_FLOAT; } // void* else if (PyCObject_Check(py_var)) idc_var->set_pvoid(PyCObject_AsVoidPtr(py_var)); else if (PyList_CheckExact(py_var) || PyIsSequenceType(py_var)) { // Create the object VarObject(idc_var); // Determine list size and type bool is_seq = !PyList_CheckExact(py_var); Py_ssize_t size = is_seq ? PySequence_Size(py_var) : PyList_Size(py_var); bool ok = true; qstring attr_name; // Convert each item for (Py_ssize_t i=0;i 0; if (ok) { // Form the attribute name PyObject *py_int = PyInt_FromSsize_t(i); ok = PyObjectToString(py_int, &attr_name); if (!ok) break; Py_DECREF(py_int); // Store the attribute VarSetAttr(idc_var, attr_name.c_str(), &v); } // Sequences return a new reference for GetItem() if (is_seq) Py_DECREF(py_var); if (!ok) break; } return ok ? 1 : 0; } // Dictionary: we convert to an IDC object else if (PyDict_Check(py_var)) { // Create an empty IDC object VarObject(idc_var); // Get the dict.items() list PyObject *py_items = PyDict_Items(py_var); // Get the size of the list qstring key_name; bool ok = true; Py_ssize_t size = PySequence_Size(py_items); for (Py_ssize_t i=0;i (key, value) PyObject *py_item = PyList_GetItem(py_items, i); // Extract key/value PyObject *key = PySequence_GetItem(py_item, 0); PyObject *val = PySequence_GetItem(py_item, 1); // Get key's string representation PyObjectToString(key, &key_name); // Convert the attribute into an IDC value idc_value_t v; ok = pyvar_to_idcvar(val, &v, gvar_sn) > 0; if (ok) { // Store the attribute VarSetAttr(idc_var, key_name.c_str(), &v); } Py_XDECREF(key); Py_XDECREF(val); if (!ok) break; } // Decrement attribute reference Py_DECREF(py_items); return ok ? 1 : 0; } // Objects: // - pyidc_cvt objects: int64, byref, opaque // - other python objects else { // Get the type int cvt_id = get_pyidc_cvt_type(py_var); switch (cvt_id) { // // INT64 // case PY_ICID_INT64: // Get the value attribute attr = PyObject_TryGetAttrString(py_var, PY_IDCCVT_VALUE_ATTR); if (attr == NULL) return false; idc_var->set_int64(PyLong_AsLongLong(attr)); Py_DECREF(attr); return 1; // // BYREF // case PY_ICID_BYREF: { // BYREF always require this parameter if (gvar_sn == NULL) return 0; // Get the value attribute attr = PyObject_TryGetAttrString(py_var, PY_IDCCVT_VALUE_ATTR); if (attr == NULL) return 0; // Create a global variable char buf[MAXSTR]; qsnprintf(buf, sizeof(buf), PY_IDC_GLOBAL_VAR_FMT, *gvar_sn); idc_value_t *gvar = add_idc_gvar(buf); // Convert the python value into the IDC global variable bool ok = pyvar_to_idcvar(attr, gvar, gvar_sn) > 0; if (ok) { (*gvar_sn)++; // Create a reference to this global variable VarRef(idc_var, gvar); } Py_DECREF(attr); return ok ? 1 : 0; } // // OPAQUE // case PY_ICID_OPAQUE: { if (!create_py_idc_opaque_obj(py_var, idc_var)) return 0; return 2; // do not decrement the reference } // // Other objects // default: // A normal object? PyObject *py_dir = PyObject_Dir(py_var); Py_ssize_t size = PyList_Size(py_dir); if (py_dir == NULL || !PyList_Check(py_dir) || size == 0) { Py_XDECREF(py_dir); return 0; } // Create the IDC object VarObject(idc_var); for (Py_ssize_t i=0;i 2 ) && (strncmp(field_name, "__", 2) == 0 ) && (strncmp(field_name+len-2, "__", 2) == 0) ) { continue; } idc_value_t v; // Get the non-private attribute from the object attr = PyObject_GetAttrString(py_var, field_name); if (attr == NULL // Convert the attribute into an IDC value || pyvar_to_idcvar(attr, &v, gvar_sn) <= 0) { Py_XDECREF(attr); return 0; } // Store the attribute VarSetAttr(idc_var, field_name, &v); // Decrement attribute reference Py_DECREF(attr); } } } return 1; } //------------------------------------------------------------------------- // Converts an IDC variable to a Python variable // If py_var points to an existing object then the object will be updated // If py_var points to an existing immutable object then ZERO is returned // Return codes: #define CIP_FAILED -1 // Conversion error #define CIP_IMMUTABLE 0 // Immutable object passed. Will not update the object but no error occured #define CIP_OK 1 // Success #define CIP_OK_NODECREF 2 // Success but do not decrement its reference int idcvar_to_pyvar( const idc_value_t &idc_var, PyObject **py_var) { switch (idc_var.vtype) { case VT_PVOID: if (*py_var == NULL) *py_var = PyCObject_FromVoidPtr(idc_var.pvoid, NULL); else return CIP_IMMUTABLE; break; case VT_INT64: { // Recycle? if (*py_var != NULL) { // Recycling an int64 object? int t = get_pyidc_cvt_type(*py_var); if (t != PY_ICID_INT64) return CIP_IMMUTABLE; // Cannot recycle immutable object // Update the attribute PyObject_SetAttrString(*py_var, PY_IDCCVT_VALUE_ATTR, PyLong_FromLongLong(idc_var.i64)); return CIP_OK; } PyObject *py_cls = get_idaapi_class_reference(PY_CLSID_CVT_INT64); if (py_cls == NULL) return CIP_FAILED; *py_var = PyObject_CallFunctionObjArgs(py_cls, PyLong_FromLongLong(idc_var.i64), NULL); Py_DECREF(py_cls); break; } case VT_STR: *py_var = PyString_FromString(idc_var.str); break; case VT_STR2: if (*py_var == NULL) { const qstring &s = idc_var.qstr(); *py_var = PyString_FromStringAndSize(s.begin(), s.length()); break; } else return CIP_IMMUTABLE; // Cannot recycle immutable object case VT_LONG: // Cannot recycle immutable objects if (*py_var != NULL) return CIP_IMMUTABLE; #ifdef __EA64__ *py_var = PyLong_FromLongLong(idc_var.num); #else *py_var = PyLong_FromLong(idc_var.num); #endif break; case VT_FLOAT: if (*py_var == NULL) { double x; if ( ph.realcvt(&x, (uint16 *)idc_var.e, (sizeof(x)/2-1)|010) != 0 ) INTERR(); *py_var = PyFloat_FromDouble(x); break; } else return CIP_IMMUTABLE; case VT_REF: { if (*py_var == NULL) { PyObject *py_cls = get_idaapi_class_reference(PY_CLSID_CVT_BYREF); if (py_cls == NULL) return CIP_FAILED; // Create a byref object with None value. We populate it later *py_var = PyObject_CallFunctionObjArgs(py_cls, Py_None, NULL); Py_DECREF(py_cls); } int t = *py_var == NULL ? -1 : get_pyidc_cvt_type(*py_var); if (t != PY_ICID_BYREF) return CIP_FAILED; // Dereference // (Since we are not using VREF_COPY flag, we can safely const_cast) idc_value_t *dref_v = VarDeref(const_cast(&idc_var), VREF_LOOP); if (dref_v == NULL) return CIP_FAILED; // Can we recycle the object? PyObject *new_py_val = PyObject_TryGetAttrString(*py_var, PY_IDCCVT_VALUE_ATTR); if (new_py_val != NULL) { // Recycle t = idcvar_to_pyvar(*dref_v, &new_py_val); Py_XDECREF(new_py_val); // DECREF because of GetAttrStr // Success? Nothing more to be done if (t == CIP_OK) return CIP_OK; // Clear it so we don't recycle it new_py_val = NULL; } // Try to convert (not recycle) if (idcvar_to_pyvar(*dref_v, &new_py_val) != CIP_OK) return CIP_FAILED; // Update the attribute PyObject_SetAttrString(*py_var, PY_IDCCVT_VALUE_ATTR, new_py_val); Py_DECREF(new_py_val); break; } // Can convert back into a Python object or Python dictionary // (Depending if py_var will be recycled and it was a dictionary) case VT_OBJ: { // Check if this IDC object has __cvt_id__ and the __idc_cvt_value__ fields idc_value_t idc_val; if ( VarGetAttr(&idc_var, PY_IDCCVT_ID_ATTR, &idc_val) == eOk && VarGetAttr(&idc_var, PY_IDCCVT_VALUE_ATTR, &idc_val) == eOk ) { // Extract the object *py_var = (PyObject *) idc_val.pvoid; return CIP_OK_NODECREF; } PyObject *obj; bool is_dict = false; // Need to create a new object? if (*py_var == NULL) { PyObject *py_cls = get_idaapi_class_reference(PY_CLSID_APPCALL_SKEL_OBJ); if (py_cls == NULL) return CIP_FAILED; obj = PyObject_CallFunctionObjArgs(py_cls, NULL); Py_DECREF(py_cls); if (obj == NULL) return CIP_FAILED; } else { // Recycle existing variable obj = *py_var; if (PyDict_Check(obj)) is_dict = true; } // Walk the IDC attributes and store into python for (const char *attr_name = VarFirstAttr(&idc_var); attr_name != NULL; attr_name=VarNextAttr(&idc_var, attr_name)) { // Get the attribute idc_value_t v; VarGetAttr(&idc_var, attr_name, &v, true); // Convert attribute to a python value PyObject *py_attr(NULL); int cvt = idcvar_to_pyvar(v, &py_attr); if (cvt <= CIP_IMMUTABLE) { // Delete the object (if we created it) if (*py_var == NULL) Py_DECREF(obj); return CIP_FAILED; } if (is_dict) PyDict_SetItemString(obj, attr_name, py_attr); else PyObject_SetAttrString(obj, attr_name, py_attr); if (cvt == CIP_OK) Py_DECREF(py_attr); } *py_var = obj; break; } // Unhandled type default: *py_var = NULL; return CIP_FAILED; } return CIP_OK; } // %} // Do not create separate wrappers for default arguments %feature("compactdefaultargs"); #ifdef __EA64__ #ifdef __GNUC__ %constant ea_t BADADDR = 0xFFFFFFFFFFFFFFFFll; %constant sel_t BADSEL = 0xFFFFFFFFFFFFFFFFll; %constant nodeidx_t BADNODE = 0xFFFFFFFFFFFFFFFFll; #else // __GNUC__ %constant ea_t BADADDR = 0xFFFFFFFFFFFFFFFFui64; %constant sel_t BADSEL = 0xFFFFFFFFFFFFFFFFui64; %constant nodeidx_t BADNODE = 0xFFFFFFFFFFFFFFFFui64; #endif // __GNUC__ #else //__EA64__ %constant ea_t BADADDR = 0xFFFFFFFFL; %constant sel_t BADSEL = 0xFFFFFFFFL; %constant nodeidx_t BADNODE = 0xFFFFFFFFL; #endif // Help SWIG to figure out the ulonglong type #ifdef SWIGWIN typedef unsigned __int64 ulonglong; typedef __int64 longlong; #else typedef unsigned long long ulonglong; typedef long long longlong; #endif typedef int error_t; %include "typemaps.i" %include "cstring.i" %include "carrays.i" %include "cpointer.i" %include "typeconv.i" %include "pro.h" // Do not move this. We need to override the define from pro.h #define CASSERT(type) // Convert all of these %cstring_output_maxstr_none(char *buf, size_t bufsize); %binary_output_or_none(void *buf, size_t bufsize); %binary_output_with_size(void *buf, size_t *bufsize); // Accept single Python string for const void * + size input arguments // For example: put_many_bytes() and patch_many_bytes() %apply (char *STRING, int LENGTH) { (const void *buf, size_t size) }; %apply (char *STRING, int LENGTH) { (const void *buf, size_t len) }; %apply (char *STRING, int LENGTH) { (const void *value, size_t length) }; %apply (char *STRING, int LENGTH) { (const void *dataptr,size_t len) }; // Create wrapper classes for basic type arrays %array_class(uchar, uchar_array); %array_class(tid_t, tid_array); %array_class(ea_t, ea_array); %array_class(sel_t, sel_array); %array_class(uval_t, uval_array); %pointer_class(int, int_pointer); %pointer_class(ea_t, ea_pointer); %pointer_class(sval_t, sval_pointer); %pointer_class(sel_t, sel_pointer); %include "ida.i" %include "idd.i" %include "idp.i" %include "netnode.i" %include "nalt.i" %include "allins.i" %include "area.i" %include "auto.i" %include "bytes.i" %include "dbg.i" %include "diskio.i" %include "entry.i" %include "enum.i" %include "expr.i" %include "fixup.i" %include "frame.i" %include "funcs.i" %inline { /* Small wrapper to get the inf structure */ idainfo *get_inf_structure(void) { return &inf; } } %include "gdl.i" %include "ints.i" %include "kernwin.i" %include "lines.i" %include "loader.i" %include "moves.i" %include "name.i" %include "offset.i" %include "queue.i" %include "search.i" %include "segment.i" %include "srarea.i" %include "strlist.i" %include "struct.i" %include "typeinf.i" %include "ua.i" %include "xref.i" #ifdef __NT__ %include "graph.i" #endif %include "fpro.i" %inline { void set_script_timeout(int timeout); void enable_extlang_python(bool enable); void enable_python_cli(bool enable); } %pythoncode %{ # # ----------------------------------------------------------------------- # Seek constants SEEK_SET = 0 # from the file start SEEK_CUR = 1 # from the current position SEEK_END = 2 # from the file end # ----------------------------------------------------------------------- # This is a special helper object that helps detect which kind # of object is this python object wrapping and how to convert it # back and from IDC. # This object is characterized by its special attribute and its value class PyIdc_cvt_helper__(object): def __init__(self, cvt_id, value): # 0 = int64 object # 1 = byref object # 2 = opaque object self.__idc_cvt_id__ = cvt_id self.value = value def __set_value(self, v): self.__idc_cvt_value__ = v def __get_value(self): return self.__idc_cvt_value__ value = property(__get_value, __set_value) # ----------------------------------------------------------------------- class PyIdc_cvt_int64__(PyIdc_cvt_helper__): """Helper class for explicitly representing VT_INT64 values""" def __init__(self, v): # id = 0 = int64 object super(self.__class__, self).__init__(0, v) # operation table op_table = \ { 0: lambda a, b: a + b, 1: lambda a, b: a - b, 2: lambda a, b: a * b, 3: lambda a, b: a / b } # carries the operation given its number def op(self, op_n, other, rev=False): a = self.value # other operand of same type? then take its value field if type(other) == type(self): b = other.value else: b = other if rev: t = a a = b b = t # construct a new object and return as the result return self.__class__(self.op_table[op_n](a, b)) # overloaded operators def __add__(self, other): return self.op(0, other) def __sub__(self, other): return self.op(1, other) def __mul__(self, other): return self.op(2, other) def __div__(self, other): return self.op(3, other) def __radd__(self, other): return self.op(0, other, True) def __rsub__(self, other): return self.op(1, other, True) def __rmul__(self, other): return self.op(2, other, True) def __rdiv__(self, other): return self.op(3, other, True) # ----------------------------------------------------------------------- class PyIdc_cvt_refclass__(PyIdc_cvt_helper__): """Helper class for representing references to immutable objects""" def __init__(self, v): # id = one = byref object super(self.__class__, self).__init__(1, v) def cstr(self): return as_cstr(self.value) # ----------------------------------------------------------------------- # This object can be passed to IDC and back to Python transparently # The attribute "__idc_cvt_value__" is used class PyIdc_cvt_opaque__(PyIdc_cvt_helper__): def __init__(self, v): # id = two = opaque object super(self.__class__, self).__init__(2, v) # ----------------------------------------------------------------------- def as_cstr(val): """ Returns a C str from the passed value. The passed value can be of type refclass (returned by a call to buffer() or byref()) It scans for the first \x00 and returns the string value up to that point. """ if isinstance(val, PyIdc_cvt_refclass__): val = val.value n = 0 for x in val: if ord(x) == 0: break n = n + 1 return val[:n] # ----------------------------------------------------------------------- def as_unicode(s): """Convenience function to convert a string into appropriate unicode format""" # use UTF16 big/little endian, depending on the environment? return unicode(s).encode("UTF-16" + ("BE" if _idaapi.cvar.inf.mf else "LE")) # ----------------------------------------------------------------------- def as_uint32(v): return v & 0xffffffff # ----------------------------------------------------------------------- def as_int32(v): return -((~v & 0xffffffff)+1) # %}