mirror of
https://github.com/cemu-project/idapython.git
synced 2024-12-03 14:34:18 +01:00
700 lines
19 KiB
C++
700 lines
19 KiB
C++
#ifndef __PY_IDA_CUSTDATA__
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#define __PY_IDA_CUSTDATA__
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//<code(py_bytes)>
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//------------------------------------------------------------------------
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class py_custom_data_type_t
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{
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data_type_t dt;
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qstring dt_name, dt_menu_name, dt_hotkey, dt_asm_keyword;
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int dtid; // The data format id
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PyObject *py_self; // Associated Python object
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// may create data? NULL means always may
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static bool idaapi s_may_create_at(
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void *ud, // user-defined data
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ea_t ea, // address of the future item
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size_t nbytes) // size of the future item
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{
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py_custom_data_type_t *_this = (py_custom_data_type_t *)ud;
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PYW_GIL_ENSURE;
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PyObject *py_result = PyObject_CallMethod(
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_this->py_self,
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(char *)S_MAY_CREATE_AT,
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PY_FMT64 PY_FMT64,
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pyul_t(ea),
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pyul_t(nbytes));
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PYW_GIL_RELEASE;
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PyW_ShowCbErr(S_MAY_CREATE_AT);
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bool ok = py_result != NULL && PyObject_IsTrue(py_result);
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Py_XDECREF(py_result);
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return ok;
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}
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// !=NULL means variable size datatype
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static asize_t idaapi s_calc_item_size(
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// This function is used to determine
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// size of the (possible) item at 'ea'
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void *ud, // user-defined data
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ea_t ea, // address of the item
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asize_t maxsize) // maximal size of the item
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{
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// Returns: 0-no such item can be created/displayed
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// this callback is required only for varsize datatypes
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py_custom_data_type_t *_this = (py_custom_data_type_t *)ud;
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PYW_GIL_ENSURE;
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PyObject *py_result = PyObject_CallMethod(
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_this->py_self,
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(char *)S_CALC_ITEM_SIZE,
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PY_FMT64 PY_FMT64,
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pyul_t(ea),
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pyul_t(maxsize));
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PYW_GIL_RELEASE;
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if ( PyW_ShowCbErr(S_CALC_ITEM_SIZE) || py_result == NULL )
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return 0;
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uint64 num = 0;
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PyW_GetNumber(py_result, &num);
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Py_XDECREF(py_result);
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return asize_t(num);
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}
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public:
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const char *get_name() const
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{
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return dt_name.c_str();
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}
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py_custom_data_type_t()
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{
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dtid = -1;
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py_self = NULL;
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}
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int register_dt(PyObject *py_obj)
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{
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// Already registered?
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if ( dtid >= 0 )
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return dtid;
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memset(&dt, 0, sizeof(dt));
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dt.cbsize = sizeof(dt);
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dt.ud = this;
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PyObject *py_attr = NULL;
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do
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{
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// name
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if ( !PyW_GetStringAttr(py_obj, S_NAME, &dt_name) )
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break;
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dt.name = dt_name.c_str();
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// menu_name (optional)
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if ( PyW_GetStringAttr(py_obj, S_MENU_NAME, &dt_menu_name) )
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dt.menu_name = dt_menu_name.c_str();
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// asm_keyword (optional)
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if ( PyW_GetStringAttr(py_obj, S_ASM_KEYWORD, &dt_asm_keyword) )
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dt.asm_keyword = dt_asm_keyword.c_str();
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// hotkey (optional)
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if ( PyW_GetStringAttr(py_obj, S_HOTKEY, &dt_hotkey) )
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dt.hotkey = dt_hotkey.c_str();
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// value_size
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py_attr = PyW_TryGetAttrString(py_obj, S_VALUE_SIZE);
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if ( py_attr != NULL && PyInt_Check(py_attr) )
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dt.value_size = PyInt_AsLong(py_attr);
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Py_XDECREF(py_attr);
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// props
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py_attr = PyW_TryGetAttrString(py_obj, S_PROPS);
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if ( py_attr != NULL && PyInt_Check(py_attr) )
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dt.props = PyInt_AsLong(py_attr);
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Py_XDECREF(py_attr);
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// may_create_at
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py_attr = PyW_TryGetAttrString(py_obj, S_MAY_CREATE_AT);
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if ( py_attr != NULL && PyCallable_Check(py_attr) )
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dt.may_create_at = s_may_create_at;
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Py_XDECREF(py_attr);
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// calc_item_size
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py_attr = PyW_TryGetAttrString(py_obj, S_CALC_ITEM_SIZE);
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if ( py_attr != NULL && PyCallable_Check(py_attr) )
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dt.calc_item_size = s_calc_item_size;
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Py_XDECREF(py_attr);
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// Clear attribute
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py_attr = NULL;
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// Now try to register
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dtid = register_custom_data_type(&dt);
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if ( dtid < 0 )
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break;
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// Hold reference to the PyObject
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Py_INCREF(py_obj);
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py_self = py_obj;
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py_attr = PyInt_FromLong(dtid);
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PyObject_SetAttrString(py_obj, S_ID, py_attr);
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Py_DECREF(py_attr);
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// Done with attribute
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py_attr = NULL;
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} while ( false );
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Py_XDECREF(py_attr);
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return dtid;
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}
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bool unregister_dt()
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{
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if ( dtid < 0 )
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return true;
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if ( !unregister_custom_data_type(dtid) )
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return false;
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// Release reference of Python object
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Py_XDECREF(py_self);
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py_self = NULL;
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dtid = -1;
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return true;
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}
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~py_custom_data_type_t()
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{
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unregister_dt();
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}
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};
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typedef std::map<int, py_custom_data_type_t *> py_custom_data_type_map_t;
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static py_custom_data_type_map_t py_dt_map;
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//------------------------------------------------------------------------
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class py_custom_data_format_t
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{
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private:
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data_format_t df;
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int dfid;
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PyObject *py_self;
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qstring df_name, df_menu_name, df_hotkey;
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static bool idaapi s_print( // convert to colored string
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void *ud, // user-defined data
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qstring *out, // output buffer. may be NULL
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const void *value, // value to print. may not be NULL
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asize_t size, // size of value in bytes
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ea_t current_ea, // current address (BADADDR if unknown)
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int operand_num, // current operand number
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int dtid) // custom data type id
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{
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// Build a string from the buffer
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PyObject *py_value = PyString_FromStringAndSize(
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(const char *)value,
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Py_ssize_t(size));
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if ( py_value == NULL )
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return false;
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py_custom_data_format_t *_this = (py_custom_data_format_t *) ud;
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PYW_GIL_ENSURE;
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PyObject *py_result = PyObject_CallMethod(
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_this->py_self,
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(char *)S_PRINTF,
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"O" PY_FMT64 "ii",
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py_value,
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pyul_t(current_ea),
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operand_num,
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dtid);
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PYW_GIL_RELEASE;
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// Done with the string
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Py_DECREF(py_value);
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// Error while calling the function?
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if ( PyW_ShowCbErr(S_PRINTF) || py_result == NULL )
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return false;
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bool ok = false;
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if ( PyString_Check(py_result) )
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{
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Py_ssize_t len;
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char *buf;
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if ( out != NULL && PyString_AsStringAndSize(py_result, &buf, &len) != -1 )
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{
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out->qclear();
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out->append(buf, len);
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}
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ok = true;
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}
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Py_DECREF(py_result);
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return ok;
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}
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static bool idaapi s_scan( // convert from uncolored string
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void *ud, // user-defined data
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bytevec_t *value, // output buffer. may be NULL
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const char *input, // input string. may not be NULL
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ea_t current_ea, // current address (BADADDR if unknown)
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int operand_num, // current operand number (-1 if unknown)
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qstring *errstr) // buffer for error message
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{
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py_custom_data_format_t *_this = (py_custom_data_format_t *) ud;
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PYW_GIL_ENSURE;
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PyObject *py_result = PyObject_CallMethod(
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_this->py_self,
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(char *)S_SCAN,
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"s" PY_FMT64,
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input,
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pyul_t(current_ea),
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operand_num);
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PYW_GIL_RELEASE;
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// Error while calling the function?
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if ( PyW_ShowCbErr(S_SCAN) || py_result == NULL)
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return false;
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bool ok = false;
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do
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{
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// We expect a tuple(bool, string|None)
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if ( !PyTuple_Check(py_result) || PyTuple_Size(py_result) != 2 )
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break;
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// Borrow references
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PyObject *py_bool = PyTuple_GetItem(py_result, 0);
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PyObject *py_val = PyTuple_GetItem(py_result, 1);
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// Get return code from Python
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ok = PyObject_IsTrue(py_bool);
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// We expect None or the value (depending on probe)
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if ( ok )
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{
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// Probe-only? Then okay, no need to extract the 'value'
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if ( value == NULL )
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break;
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Py_ssize_t len;
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char *buf;
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if ( PyString_AsStringAndSize(py_val, &buf, &len) != -1 )
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{
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value->qclear();
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value->append(buf, len);
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}
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}
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// An error occured?
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else
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{
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// Make sure the user returned (False, String)
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if ( py_bool != Py_False || !PyString_Check(py_val) )
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{
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*errstr = "Invalid return value returned from the Python callback!";
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break;
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}
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// Get the error message
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*errstr = PyString_AsString(py_val);
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}
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} while ( false );
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Py_DECREF(py_result);
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return ok;
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}
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static void idaapi s_analyze( // analyze custom data format occurrence
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void *ud, // user-defined data
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ea_t current_ea, // current address (BADADDR if unknown)
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int operand_num) // current operand number
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// this callback can be used to create
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// xrefs from the current item.
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// this callback may be missing.
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{
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py_custom_data_format_t *_this = (py_custom_data_format_t *) ud;
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PYW_GIL_ENSURE;
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PyObject *py_result = PyObject_CallMethod(
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_this->py_self,
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(char *)S_ANALYZE,
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PY_FMT64 "i",
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pyul_t(current_ea),
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operand_num);
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PYW_GIL_RELEASE;
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PyW_ShowCbErr(S_ANALYZE);
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Py_XDECREF(py_result);
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}
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public:
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py_custom_data_format_t()
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{
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dfid = -1;
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py_self = NULL;
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}
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const char *get_name() const
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{
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return df_name.c_str();
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}
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int register_df(int dtid, PyObject *py_obj)
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{
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// Already registered?
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if ( dfid >= 0 )
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return dfid;
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memset(&df, 0, sizeof(df));
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df.cbsize = sizeof(df);
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df.ud = this;
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PyObject *py_attr = NULL;
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do
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{
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// name
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if ( !PyW_GetStringAttr(py_obj, S_NAME, &df_name) )
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break;
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df.name = df_name.c_str();
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// menu_name (optional)
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if ( PyW_GetStringAttr(py_obj, S_MENU_NAME, &df_menu_name) )
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df.menu_name = df_menu_name.c_str();
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// props
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py_attr = PyW_TryGetAttrString(py_obj, S_PROPS);
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if ( py_attr != NULL && PyInt_Check(py_attr) )
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df.props = PyInt_AsLong(py_attr);
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Py_XDECREF(py_attr);
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// hotkey
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if ( PyW_GetStringAttr(py_obj, S_HOTKEY, &df_hotkey) )
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df.hotkey = df_hotkey.c_str();
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// value_size
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py_attr = PyW_TryGetAttrString(py_obj, S_VALUE_SIZE);
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if ( py_attr != NULL && PyInt_Check(py_attr) )
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df.value_size = PyInt_AsLong(py_attr);
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Py_XDECREF(py_attr);
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// text_width
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py_attr = PyW_TryGetAttrString(py_obj, S_TEXT_WIDTH);
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if ( py_attr != NULL && PyInt_Check(py_attr) )
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df.text_width = PyInt_AsLong(py_attr);
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Py_XDECREF(py_attr);
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// print cb
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py_attr = PyW_TryGetAttrString(py_obj, S_PRINTF);
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if ( py_attr != NULL && PyCallable_Check(py_attr) )
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df.print = s_print;
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Py_XDECREF(py_attr);
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// scan cb
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py_attr = PyW_TryGetAttrString(py_obj, S_SCAN);
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if ( py_attr != NULL && PyCallable_Check(py_attr) )
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df.scan = s_scan;
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Py_XDECREF(py_attr);
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// analyze cb
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py_attr = PyW_TryGetAttrString(py_obj, S_ANALYZE);
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if ( py_attr != NULL && PyCallable_Check(py_attr) )
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df.analyze = s_analyze;
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Py_XDECREF(py_attr);
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// Done with attribute
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py_attr = NULL;
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// Now try to register
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dfid = register_custom_data_format(dtid, &df);
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if ( dfid < 0 )
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break;
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// Hold reference to the PyObject
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Py_INCREF(py_obj);
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py_self = py_obj;
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// Update the format ID
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py_attr = PyInt_FromLong(dfid);
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PyObject_SetAttrString(py_obj, S_ID, py_attr);
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Py_DECREF(py_attr);
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py_attr = NULL;
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} while ( false );
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Py_XDECREF(py_attr);
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return dfid;
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}
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bool unregister_df(int dtid)
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{
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// Never registered?
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if ( dfid < 0 )
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return true;
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if ( !unregister_custom_data_format(dtid, dfid) )
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return false;
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// Release reference of Python object
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Py_XDECREF(py_self);
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py_self = NULL;
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dfid = -1;
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return true;
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}
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~py_custom_data_format_t()
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{
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}
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};
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//------------------------------------------------------------------------
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// Helper class to bind <dtid, dfid> pairs to py_custom_data_format_t
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class py_custom_data_format_list_t
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{
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struct py_custom_data_format_entry_t
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{
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int dtid;
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int dfid;
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py_custom_data_format_t *df;
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};
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typedef qvector<py_custom_data_format_entry_t> ENTRY;
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ENTRY entries;
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public:
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typedef ENTRY::iterator POS;
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void add(int dtid, int dfid, py_custom_data_format_t *df)
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{
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py_custom_data_format_entry_t &e = entries.push_back();
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e.dtid = dtid;
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e.dfid = dfid;
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e.df = df;
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}
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py_custom_data_format_t *find(int dtid, int dfid, POS *loc = NULL)
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{
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for ( POS it=entries.begin(), it_end = entries.end(); it!=it_end; ++it )
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{
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if ( it->dfid == dfid && it->dtid == dtid )
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{
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if ( loc != NULL )
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*loc = it;
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return it->df;
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}
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}
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return NULL;
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}
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void erase(POS &pos)
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{
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entries.erase(pos);
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}
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};
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static py_custom_data_format_list_t py_df_list;
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//------------------------------------------------------------------------
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static PyObject *py_data_type_to_py_dict(const data_type_t *dt)
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{
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return Py_BuildValue("{s:" PY_FMT64 ",s:i,s:i,s:s,s:s,s:s,s:s}",
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S_VALUE_SIZE, pyul_t(dt->value_size),
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S_PROPS, dt->props,
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S_CBSIZE, dt->cbsize,
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S_NAME, dt->name == NULL ? "" : dt->name,
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S_MENU_NAME, dt->menu_name == NULL ? "" : dt->menu_name,
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S_HOTKEY, dt->hotkey == NULL ? "" : dt->hotkey,
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S_ASM_KEYWORD, dt->asm_keyword == NULL ? "" : dt->asm_keyword);
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}
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//------------------------------------------------------------------------
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static PyObject *py_data_format_to_py_dict(const data_format_t *df)
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{
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return Py_BuildValue("{s:i,s:i,s:i,s:" PY_FMT64 ",s:s,s:s,s:s}",
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S_PROPS, df->props,
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S_CBSIZE, df->cbsize,
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S_TEXT_WIDTH, df->text_width,
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S_VALUE_SIZE, pyul_t(df->value_size),
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S_NAME, df->name == NULL ? "" : df->name,
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S_MENU_NAME, df->menu_name == NULL ? "" : df->menu_name,
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S_HOTKEY, df->hotkey == NULL ? "" : df->hotkey);
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}
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//</code(py_bytes)>
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|
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//------------------------------------------------------------------------
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//<inline(py_bytes)>
|
|
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|
//------------------------------------------------------------------------
|
|
/*
|
|
#<pydoc>
|
|
def register_custom_data_type(dt):
|
|
"""
|
|
Registers a custom data type.
|
|
@param dt: an instance of the data_type_t class
|
|
@return:
|
|
< 0 if failed to register
|
|
> 0 data type id
|
|
"""
|
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pass
|
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#</pydoc>
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|
*/
|
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// Given a py.data_format_t object, this function will register a datatype
|
|
static int py_register_custom_data_type(PyObject *py_dt)
|
|
{
|
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py_custom_data_type_t *inst = new py_custom_data_type_t();
|
|
int r = inst->register_dt(py_dt);
|
|
if ( r < 0 )
|
|
{
|
|
delete inst;
|
|
return r;
|
|
}
|
|
// Insert the instance to the map
|
|
py_dt_map[r] = inst;
|
|
return r;
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
/*
|
|
#<pydoc>
|
|
def unregister_custom_data_type(dtid):
|
|
"""
|
|
Unregisters a custom data type.
|
|
@param dtid: the data type id
|
|
@return: Boolean
|
|
"""
|
|
pass
|
|
#</pydoc>
|
|
*/
|
|
static bool py_unregister_custom_data_type(int dtid)
|
|
{
|
|
py_custom_data_type_map_t::iterator it = py_dt_map.find(dtid);
|
|
|
|
// Maybe the user is trying to unregister a C api dt?
|
|
if ( it == py_dt_map.end() )
|
|
return unregister_custom_data_type(dtid);
|
|
|
|
py_custom_data_type_t *inst = it->second;
|
|
bool ok = inst->unregister_dt();
|
|
|
|
// Perhaps it was automatically unregistered because the idb was close?
|
|
if ( !ok )
|
|
{
|
|
// Is this type still registered with IDA?
|
|
// If not found then mark the context for deletion
|
|
ok = find_custom_data_type(inst->get_name()) < 0;
|
|
}
|
|
|
|
if ( ok )
|
|
{
|
|
py_dt_map.erase(it);
|
|
delete inst;
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
/*
|
|
#<pydoc>
|
|
def register_custom_data_format(dtid, df):
|
|
"""
|
|
Registers a custom data format with a given data type.
|
|
@param dtid: data type id
|
|
@param df: an instance of data_format_t
|
|
@return:
|
|
< 0 if failed to register
|
|
> 0 data format id
|
|
"""
|
|
pass
|
|
#</pydoc>
|
|
*/
|
|
static int py_register_custom_data_format(int dtid, PyObject *py_df)
|
|
{
|
|
py_custom_data_format_t *inst = new py_custom_data_format_t();
|
|
int r = inst->register_df(dtid, py_df);
|
|
if ( r < 0 )
|
|
{
|
|
delete inst;
|
|
return r;
|
|
}
|
|
// Insert the instance
|
|
py_df_list.add(dtid, r, inst);
|
|
return r;
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
/*
|
|
#<pydoc>
|
|
def unregister_custom_data_format(dtid, dfid):
|
|
"""
|
|
Unregisters a custom data format
|
|
@param dtid: data type id
|
|
@param dfid: data format id
|
|
@return: Boolean
|
|
"""
|
|
pass
|
|
#</pydoc>
|
|
*/
|
|
static bool py_unregister_custom_data_format(int dtid, int dfid)
|
|
{
|
|
py_custom_data_format_list_t::POS pos;
|
|
py_custom_data_format_t *inst = py_df_list.find(dtid, dfid, &pos);
|
|
// Maybe the user is trying to unregister a C api data format?
|
|
if ( inst == NULL )
|
|
return unregister_custom_data_format(dtid, dfid);
|
|
|
|
bool ok = inst->unregister_df(dtid);
|
|
|
|
// Perhaps it was automatically unregistered because the type was unregistered?
|
|
if ( !ok )
|
|
{
|
|
// Is this format still registered with IDA?
|
|
// If not, mark the context for deletion
|
|
ok = find_custom_data_format(inst->get_name()) < 0;
|
|
}
|
|
|
|
if ( ok )
|
|
{
|
|
py_df_list.erase(pos);
|
|
delete inst;
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
/*
|
|
#<pydoc>
|
|
def get_custom_data_format(dtid, dfid):
|
|
"""
|
|
Returns a dictionary populated with the data format values or None on failure.
|
|
@param dtid: data type id
|
|
@param dfid: data format id
|
|
"""
|
|
pass
|
|
#</pydoc>
|
|
*/
|
|
// Get definition of a registered custom data format and returns a dictionary
|
|
static PyObject *py_get_custom_data_format(int dtid, int fid)
|
|
{
|
|
const data_format_t *df = get_custom_data_format(dtid, fid);
|
|
if ( df == NULL )
|
|
Py_RETURN_NONE;
|
|
return py_data_format_to_py_dict(df);
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
/*
|
|
#<pydoc>
|
|
def get_custom_data_type(dtid):
|
|
"""
|
|
Returns a dictionary populated with the data type values or None on failure.
|
|
@param dtid: data type id
|
|
"""
|
|
pass
|
|
#</pydoc>
|
|
*/
|
|
// Get definition of a registered custom data format and returns a dictionary
|
|
static PyObject *py_get_custom_data_type(int dtid)
|
|
{
|
|
const data_type_t *dt = get_custom_data_type(dtid);
|
|
if ( dt == NULL )
|
|
Py_RETURN_NONE;
|
|
return py_data_type_to_py_dict(dt);
|
|
}
|
|
|
|
//</inline(py_bytes)>
|
|
|
|
#endif
|