Functions that deal with C-like expressions and built-in IDC language. More...

Classes
class	idc_value_t
	Class to hold idc values. More...

struct	idc_global_t
	Global idc variable. More...

struct	ext_idcfunc_t
	Element of functions table. See idcfuncs_t::funcs. More...

struct	idcfuncs_t
	Describes an array of IDC functions. More...

struct	highlighter_cbs_t

struct	syntax_highlighter_t
	Base class for syntax highligters. More...

struct	extlang_t
	External language (to support third party language interpreters) More...

struct	extlang_visitor_t

struct	idc_resolver_t
	Compile text with IDC function(s). More...

Macros
#define	IDC_LANG_EXT "idc"
	IDC script extension.

#define	VT_LONG 2
	Integer (see idc_value_t::num)

#define	VT_FLOAT 3
	Floating point (see idc_value_t::e)

#define	VT_WILD 4
	Function with arbitrary number of arguments. More...

#define	VT_OBJ 5
	Object (see idc_value_t::obj)

#define	VT_FUNC 6
	Function (see idc_value_t::funcidx)

#define	VT_STR 7
	String (see qstr() and similar functions)

#define	VT_PVOID 8
	void *

#define	VT_INT64 9
	i64

#define	VT_REF 10
	Reference.

#define	EXTFUN_BASE 0x0001
	requires open database.

#define	EXTFUN_NORET 0x0002
	does not return. More...

#define	EXTFUN_SAFE 0x0004
	thread safe function. More...

#define	EXTLANG_IDC 0x01

#define	EXTLANG_NS_AWARE 0x02
	Namespace-aware (see above.)

Functions
idaman THREAD_SAFE error_t ida_export	idcv_long (idc_value_t *v)
	Convert IDC variable to a long (32/64bit) number. More...

idaman THREAD_SAFE error_t ida_export	idcv_int64 (idc_value_t *v)
	Convert IDC variable to a 64bit number. More...

idaman THREAD_SAFE error_t ida_export	idcv_num (idc_value_t *v)
	Convert IDC variable to a long number. More...

idaman THREAD_SAFE error_t ida_export	idcv_string (idc_value_t *v)
	Convert IDC variable to a text string.

idaman THREAD_SAFE error_t ida_export	idcv_float (idc_value_t *v)
	Convert IDC variable to a floating point.

idaman THREAD_SAFE error_t ida_export	idcv_object (idc_value_t v, const idc_class_t icls=nullptr)
	Create an IDC object. More...

idaman THREAD_SAFE error_t ida_export	move_idcv (idc_value_t dst, idc_value_t src)
	Move 'src' to 'dst'. More...

idaman THREAD_SAFE error_t ida_export	copy_idcv (idc_value_t *dst, const idc_value_t &src)
	Copy 'src' to 'dst'. More...

idaman THREAD_SAFE error_t ida_export	deep_copy_idcv (idc_value_t *dst, const idc_value_t &src)
	Deep copy an IDC object. More...

idaman THREAD_SAFE void ida_export	free_idcv (idc_value_t *v)
	Free storage used by VT_STR/VT_OBJ IDC variables. More...

idaman THREAD_SAFE void ida_export	swap_idcvs (idc_value_t v1, idc_value_t v2)
	Swap 2 variables.

idaman THREAD_SAFE error_t ida_export	get_idcv_class_name (qstring out, const idc_value_t obj)
	Retrieves the IDC object class name. More...

idaman THREAD_SAFE error_t ida_export	get_idcv_attr (idc_value_t res, const idc_value_t obj, const char *attr, bool may_use_getattr=false)
	Get an object attribute. More...

idaman THREAD_SAFE error_t ida_export	set_idcv_attr (idc_value_t obj, const char attr, const idc_value_t &value, bool may_use_setattr=false)
	Set an object attribute. More...

idaman THREAD_SAFE error_t ida_export	del_idcv_attr (idc_value_t obj, const char attr)
	Delete an object attribute. More...

Enumerate object attributes
#define	VARSLICE_SINGLE 0x0001
	return single index (i2 is ignored)

idaman THREAD_SAFE const char *ida_export	first_idcv_attr (const idc_value_t *obj)

idaman THREAD_SAFE const char *ida_export	last_idcv_attr (const idc_value_t *obj)

idaman THREAD_SAFE const char *ida_export	next_idcv_attr (const idc_value_t obj, const char attr)

idaman THREAD_SAFE const char *ida_export	prev_idcv_attr (const idc_value_t obj, const char attr)

idaman bool ida_export	print_idcv (qstring out, const idc_value_t &v, const char name=nullptr, int indent=0)
	Get text representation of idc_value_t.

idaman THREAD_SAFE error_t ida_export	get_idcv_slice (idc_value_t res, const idc_value_t v, uval_t i1, uval_t i2, int flags=0)
	Get slice. More...

idaman THREAD_SAFE error_t ida_export	set_idcv_slice (idc_value_t *v, uval_t i1, uval_t i2, const idc_value_t &in, int flags=0)
	Set slice. More...

idaman THREAD_SAFE idc_class_t *ida_export	add_idc_class (const char name, const idc_class_t super=nullptr)
	Create a new IDC class. More...

idaman THREAD_SAFE idc_class_t *ida_export	find_idc_class (const char *name)
	Find an existing IDC class by its name. More...

idaman THREAD_SAFE bool ida_export	set_idc_method (idc_class_t icls, const char fullfuncname)
	Set an IDC class method. More...

Set user-defined functions to work with object attributes.
If the function name is nullptr, the definitions are removed. Returns name of the old attribute function. nullptr means error, "" means no previous attr func
#define	VREF_LOOP 0x0000
	dereference until we get a non VT_REF

#define	VREF_ONCE 0x0001
	dereference only once, do not loop

#define	VREF_COPY 0x0002
	copy the result to the input var (v)

#define	eExecThrow 90
	See return value of idc_func_t.

#define	HF_FIRST HF_KEYWORD1

#define	CPL_DEL_MACROS 0x0001
	delete macros at the end of compilation

#define	CPL_USE_LABELS 0x0002
	allow program labels in the script

#define	CPL_ONLY_SAFE 0x0004
	allow calls of only thread-safe functions

enum	syntax_highlight_style { HF_DEFAULT = 0 , HF_KEYWORD1 = 1 , HF_KEYWORD2 = 2 , HF_KEYWORD3 = 3 , HF_STRING = 4 , HF_COMMENT = 5 , HF_PREPROC = 6 , HF_NUMBER = 7 , HF_MAX }
	Possible syntax element highlighting style names.

enum	find_extlang_kind_t { FIND_EXTLANG_BY_EXT , FIND_EXTLANG_BY_NAME , FIND_EXTLANG_BY_IDX }

typedef qvector< idc_global_t >	idc_vars_t
	vector of global idc variables

typedef error_t idaapi	idc_func_t(idc_value_t argv, idc_value_t r)
	Prototype of an external IDC function (implemented in C). More...

typedef qvector< extlang_t * >	extlangs_t
	vector of external language descriptions

typedef qrefcnt_t< extlang_t >	extlang_object_t

idaman THREAD_SAFE const char *ida_export	set_idc_getattr (idc_class_t icls, const char fullfuncname)

idaman THREAD_SAFE const char *ida_export	set_idc_setattr (idc_class_t icls, const char fullfuncname)

idaman THREAD_SAFE const char *ida_export	set_idc_dtor (idc_class_t icls, const char fullfuncname)
	Set a destructor for an idc class. More...

idaman THREAD_SAFE idc_value_t *ida_export	deref_idcv (idc_value_t *v, int vref_flags)
	Dereference a VT_REF variable. More...

idaman THREAD_SAFE bool ida_export	create_idcv_ref (idc_value_t ref, const idc_value_t v)
	Create a variable reference. More...

idaman THREAD_SAFE idc_value_t *ida_export	add_idc_gvar (const char *name)
	Add global IDC variable. More...

idaman THREAD_SAFE idc_value_t *ida_export	find_idc_gvar (const char *name)
	Find an existing global IDC variable by its name. More...

idaman THREAD_SAFE bool ida_export	add_idc_func (const ext_idcfunc_t &func)
	Add an IDC function. More...

idaman THREAD_SAFE bool ida_export	del_idc_func (const char *name)
	Delete an IDC function.

idaman THREAD_SAFE bool ida_export	find_idc_func (qstring out, const char prefix, int n=0)

idaman void *ida_export	get_current_extlang (void)
	Get current active external language.

const extlang_object_t	get_extlang (void)

idaman ssize_t ida_export	install_extlang (extlang_t *el)
	Install an external language interpreter. More...

idaman bool ida_export	remove_extlang (extlang_t *el)
	Uninstall an external language interpreter. More...

idaman bool ida_export	select_extlang (extlang_t *el)
	Selects the external language interpreter. More...

idaman ssize_t ida_export	for_all_extlangs (extlang_visitor_t &ev, bool select=false)
	Process all registered extlangs.

idaman void *ida_export	find_extlang (const void *str, find_extlang_kind_t kind)

extlang_object_t	find_extlang_by_ext (const char *ext)
	Get the extlang that can handle the given file extension.

extlang_object_t	find_extlang_by_name (const char *name)
	Find an extlang by name.

extlang_object_t	find_extlang_by_index (size_t idx)
	Find an extlang by index.

idaman THREAD_SAFE bool ida_export	set_header_path (const char *path, bool add)
	Set or append a header path. More...

idaman THREAD_SAFE char *ida_export	get_idc_filename (char buf, size_t bufsize, const char file)
	Get full name of IDC file name. More...

idaman THREAD_SAFE bool ida_export	exec_system_script (const char *file, bool complain_if_no_file=true)
	Compile and execute "main" function from system file. More...

idaman bool ida_export	eval_expr_long (sval_t res, ea_t where, const char line, qstring *errbuf=nullptr)
	Compile and calculate an expression. More...

bool idaapi	eval_expr_long (uval_t res, ea_t where, const char line, qstring *errbuf=nullptr)
	See eval_expr_long()

idaman bool ida_export	eval_expr (idc_value_t rv, ea_t where, const char line, qstring *errbuf=nullptr)
	Compile and calculate an expression. More...

idaman bool ida_export	eval_idc_expr (idc_value_t rv, ea_t where, const char buf, qstring *errbuf=nullptr)
	Same as eval_expr(), but will always use the IDC interpreter regardless of the currently installed extlang. More...

idaman THREAD_SAFE bool ida_export	compile_idc_file (const char file, qstring errbuf=nullptr, int cpl_flags=CPL_DEL_MACROS\|CPL_USE_LABELS)

idaman THREAD_SAFE bool ida_export	compile_idc_text (const char line, qstring errbuf=nullptr, idc_resolver_t *resolver=nullptr, bool only_safe_funcs=false)

idaman bool ida_export	compile_idc_snippet (const char func, const char text, qstring errbuf=nullptr, idc_resolver_t resolver=nullptr, bool only_safe_funcs=false)
	Compile text with IDC statements. More...

idaman bool ida_export	call_idc_func (idc_value_t result, const char fname, const idc_value_t args[], size_t argsnum, qstring errbuf=nullptr, idc_resolver_t resolver=nullptr)
	Execute an IDC function. More...

THREAD_SAFE bool	exec_idc_script (idc_value_t result, const char path, const char func, const idc_value_t args[], size_t argsnum, qstring errbuf=nullptr)
	Compile and execute IDC function(s) from file. More...

idaman bool ida_export	eval_idc_snippet (idc_value_t result, const char line, qstring errbuf=nullptr, idc_resolver_t resolver=nullptr)
	Compile and execute IDC statements or expressions. More...

idaman void ida_export	setup_lowcnd_regfuncs (idc_func_t getreg, idc_func_t setreg)
	Setup lowcnd callbacks to read/write registers. More...

THREAD_SAFE bool	get_idptype_and_data (int vtype, const void *vdata, const idc_value_t &v)
	Extract type & data from the idc_value_t instance that was passed to parse_config_value(). More...

idaman error_t ida_export	throw_idc_exception (idc_value_t r, const char desc)
	Create an idc execution exception object. More...

Detailed Description

Functions that deal with C-like expressions and built-in IDC language.

Functions marked THREAD_SAFE may be called from any thread. No simultaneous calls should be made for the same variable. We protect only global structures, individual variables must be protected manually.

Macro Definition Documentation

◆ VT_WILD

#define VT_WILD 4

Function with arbitrary number of arguments.

The actual number of arguments will be passed in idc_value_t::num. This value should not be used for idc_value_t.

◆ EXTFUN_NORET

#define EXTFUN_NORET 0x0002

does not return.

the interpreter may clean up its state before calling it.

◆ EXTFUN_SAFE

#define EXTFUN_SAFE 0x0004

thread safe function.

may be called from any thread.

Typedef Documentation

◆ idc_func_t

typedef error_t idaapi idc_func_t(idc_value_t *argv, idc_value_t *r)

Prototype of an external IDC function (implemented in C).

Parameters

argv	vector of input arguments. IDA will convert all arguments to types specified by ext_idcfunc_t::args, except for VT_WILD
r	return value of the function or exception

Returns

0 if ok, all other values indicate error. the error code must be set with set_qerrno():

eExecThrow - a new exception has been generated, see 'r'
other values - runtime error has occurred

Function Documentation

◆ idcv_long()

idaman THREAD_SAFE error_t ida_export idcv_long ( idc_value_t * v )

Convert IDC variable to a long (32/64bit) number.

Returns: v = 0 if impossible to convert to long

◆ idcv_int64()

idaman THREAD_SAFE error_t ida_export idcv_int64 ( idc_value_t * v )

Convert IDC variable to a 64bit number.

Returns: v = 0 if impossible to convert to int64

◆ idcv_num()

idaman THREAD_SAFE error_t ida_export idcv_num ( idc_value_t * v )

Convert IDC variable to a long number.

Returns

v = 0 if IDC variable = "false" string
v = 1 if IDC variable = "true" string
v = number if IDC variable is number or string containing a number
eTypeConflict if IDC variable = empty string

◆ idcv_object()

idaman THREAD_SAFE error_t ida_export idcv_object	(	idc_value_t *	v,
		const idc_class_t *	icls = `nullptr`
	)

Create an IDC object.

The original value of 'v' is discarded (freed).

Parameters

v	variable to hold the object. any previous value will be cleaned
icls	ptr to the desired class. nullptr means "object" class this ptr must be returned by add_idc_class() or find_idc_class()

Returns: always eOk

◆ move_idcv()

idaman THREAD_SAFE error_t ida_export move_idcv	(	idc_value_t *	dst,
		idc_value_t *	src
	)

Move 'src' to 'dst'.

This function is more effective than copy_idcv since it never copies big amounts of data.

◆ copy_idcv()

idaman THREAD_SAFE error_t ida_export copy_idcv	(	idc_value_t *	dst,
		const idc_value_t &	src
	)

Copy 'src' to 'dst'.

For idc objects only a reference is copied.

◆ deep_copy_idcv()

idaman THREAD_SAFE error_t ida_export deep_copy_idcv	(	idc_value_t *	dst,
		const idc_value_t &	src
	)

Deep copy an IDC object.

This function performs deep copy of idc objects. If 'src' is not an object, copy_idcv() will be called

◆ free_idcv()

idaman THREAD_SAFE void ida_export free_idcv ( idc_value_t * v )

Free storage used by VT_STR/VT_OBJ IDC variables.

After this call the variable has a numeric value 0

◆ get_idcv_class_name()

idaman THREAD_SAFE error_t ida_export get_idcv_class_name	(	qstring *	out,
		const idc_value_t *	obj
	)

Retrieves the IDC object class name.

Parameters

out	qstring ptr for the class name. Can be nullptr.
obj	class instance variable

Returns: error code, eOk on success

◆ get_idcv_attr()

idaman THREAD_SAFE error_t ida_export get_idcv_attr	(	idc_value_t *	res,
		const idc_value_t *	obj,
		const char *	attr,
		bool	may_use_getattr = `false`
	)

Get an object attribute.

Parameters

res	buffer for the attribute value
obj	variable that holds an object reference. if obj is nullptr it searches global variables, then user functions
attr	attribute name
may_use_getattr	may call getattr functions to calculate the attribute if it does not exist

Returns: error code, eOk on success

◆ set_idcv_attr()

idaman THREAD_SAFE error_t ida_export set_idcv_attr	(	idc_value_t *	obj,
		const char *	attr,
		const idc_value_t &	value,
		bool	may_use_setattr = `false`
	)

Set an object attribute.

Parameters

obj	variable that holds an object reference. if obj is nullptr then it tries to modify a global variable with the attribute name
attr	attribute name
value	new attribute value
may_use_setattr	may call setattr functions for the class

Returns: error code, eOk on success

◆ del_idcv_attr()

idaman THREAD_SAFE error_t ida_export del_idcv_attr	(	idc_value_t *	obj,
		const char *	attr
	)

Delete an object attribute.

Parameters

obj	variable that holds an object reference
attr	attribute name

Returns: error code, eOk on success

◆ get_idcv_slice()

idaman THREAD_SAFE error_t ida_export get_idcv_slice	(	idc_value_t *	res,
		const idc_value_t *	v,
		uval_t	i1,
		uval_t	i2,
		int	flags = `0`
	)

Get slice.

Parameters

res	output variable that will contain the slice
v	input variable (string or object)
i1	slice start index
i2	slice end index (excluded)
flags	IDC variable slice flags or 0

Returns: eOk if success

◆ set_idcv_slice()

idaman THREAD_SAFE error_t ida_export set_idcv_slice	(	idc_value_t *	v,
		uval_t	i1,
		uval_t	i2,
		const idc_value_t &	in,
		int	flags = `0`
	)

Set slice.

Parameters

v	variable to modify (string or object)
i1	slice start index
i2	slice end index (excluded)
in	new value for the slice
flags	IDC variable slice flags or 0

Returns: eOk on success

◆ add_idc_class()

idaman THREAD_SAFE idc_class_t *ida_export add_idc_class	(	const char *	name,
		const idc_class_t *	super = `nullptr`
	)

Create a new IDC class.

Parameters

name	name of the new class
super	the base class for the new class. if the new class is not based on any other class, pass nullptr

Returns: pointer to the created class. If such a class already exists, a pointer to it will be returned. Pointers to other existing classes may be invalidated by this call.

◆ find_idc_class()

idaman THREAD_SAFE idc_class_t *ida_export find_idc_class ( const char * name )

Find an existing IDC class by its name.

Parameters

name	name of the class

Returns: pointer to the class or nullptr. The returned pointer is valid until a new call to add_idc_class()

◆ set_idc_method()

idaman THREAD_SAFE bool ida_export set_idc_method	(	idc_class_t *	icls,
		const char *	fullfuncname
	)

Set an IDC class method.

Parameters

icls	pointer to the class
fullfuncname	name of the function to call. use full method name: classname.funcname

Return values

true	success
false	the function could not be found

◆ set_idc_dtor()

idaman THREAD_SAFE const char *ida_export set_idc_dtor	(	idc_class_t *	icls,
		const char *	fullfuncname
	)

Set a destructor for an idc class.

The destructor is called before deleting any object of the specified class. Exceptions that escape the destructor are silently ignored, runtime errors too.

◆ deref_idcv()

idaman THREAD_SAFE idc_value_t *ida_export deref_idcv	(	idc_value_t *	v,
		int	vref_flags
	)

Dereference a VT_REF variable.

Parameters

v	variable to dereference
vref_flags	Dereference IDC variable flags

Returns: pointer to the dereference result or nullptr. If returns nullptr, qerrno is set to eExecBadRef "Illegal variable reference"

◆ create_idcv_ref()

idaman THREAD_SAFE bool ida_export create_idcv_ref	(	idc_value_t *	ref,
		const idc_value_t *	v
	)

Create a variable reference.

Currently only references to global variables can be created.

Parameters

ref	ptr to the result
v	variable to reference

Returns: success

◆ add_idc_gvar()

idaman THREAD_SAFE idc_value_t *ida_export add_idc_gvar ( const char * name )

Add global IDC variable.

Parameters

name	name of the global variable

Returns: pointer to the created variable or existing variable. NB: the returned pointer is valid until a new global var is added.

◆ find_idc_gvar()

idaman THREAD_SAFE idc_value_t *ida_export find_idc_gvar ( const char * name )

Find an existing global IDC variable by its name.

Parameters

name	name of the global variable

Returns: pointer to the variable or nullptr. NB: the returned pointer is valid until a new global var is added. FIXME: it is difficult to use this function in a thread safe manner

◆ add_idc_func()

idaman THREAD_SAFE bool ida_export add_idc_func ( const ext_idcfunc_t & func )

Add an IDC function.

This function does not modify the predefined kernel functions. Example:

static error_t idaapi myfunc5(idc_value_t *argv, idc_value_t *res)
{
  msg("myfunc is called with arg0=%a and arg1=%s\n", argv[0].num, argv[1].str);
  res->num = 5;     // let's return 5
  return eOk;
}
static const char myfunc5_args[] = { VT_LONG, VT_STR, 0 };
static const ext_idcfunc_t myfunc_desc = { "MyFunc5", myfunc5, myfunc5_args, nullptr, 0, EXTFUN_BASE };
 
// after this:
add_idc_func(myfunc_desc);
 
// there is a new IDC function which can be called like this:
MyFunc5(0x123, "test");

Parameters

func	function description block.

Note: If the function already exists, it will be replaced by the new function

Returns: success

◆ install_extlang()

idaman ssize_t ida_export install_extlang ( extlang_t * el )

Install an external language interpreter.

Any previously registered interpreter will be automatically unregistered. The installed extlang can be used in select_extlang().

Parameters

el	description of the new language. must point to static storage.

Returns: extlang id; -1 means failure and will happen if the extlang has already been installed

◆ remove_extlang()

idaman bool ida_export remove_extlang ( extlang_t * el )

Uninstall an external language interpreter.

Returns: success

◆ select_extlang()

idaman bool ida_export select_extlang ( extlang_t * el )

Selects the external language interpreter.

The specified extlang must be registered before selecting it. It will be used to evaluate expressions entered in dialog boxes. It will also replace the eval_expr() and eval_expr_long() functions.

Returns: success

◆ set_header_path()

idaman THREAD_SAFE bool ida_export set_header_path	(	const char *	path,
		bool	add
	)

Set or append a header path.

IDA looks for the include files in the appended header paths, then in the ida executable directory.

Parameters

path	list of directories to add (separated by ';') may be nullptr, in this case nothing is added
add	true: append. false: remove old paths.

Return values

true	success
false	no memory

◆ get_idc_filename()

idaman THREAD_SAFE char *ida_export get_idc_filename	(	char *	buf,
		size_t	bufsize,
		const char *	file
	)

Get full name of IDC file name.

Search for file in list of include directories, IDCPATH directory and system directories.

Parameters

buf	buffer for the answer
bufsize	size of buffer
file	file name without full path

Returns: nullptr is file not found. otherwise returns pointer to buf

◆ exec_system_script()

idaman THREAD_SAFE bool ida_export exec_system_script	(	const char *	file,
		bool	complain_if_no_file = `true`
	)

Compile and execute "main" function from system file.

Parameters

file	file name with IDC function(s). The file will be searched using get_idc_filename().
complain_if_no_file	1: display warning if the file is not found 0: don't complain if file doesn't exist

Return values

1	ok, file is compiled and executed
0	failure, compilation or execution error, warning is displayed

◆ eval_expr_long()

idaman bool ida_export eval_expr_long	(	sval_t *	res,
		ea_t	where,
		const char *	line,
		qstring *	errbuf = `nullptr`
	)

Compile and calculate an expression.

Parameters

	res	pointer to result. The result will be converted to 32/64bit number. Use eval_expr() if you need the result of another type.
	where	the current linear address in the addressing space of the program being disassembled. it will be used to resolve names of local variables, etc. if not applicable, then should be BADADDR
	line	a text line with IDC expression
[out]	errbuf	buffer for the error message

Return values

true	ok
false	error, see errbuf

◆ eval_expr()

idaman bool ida_export eval_expr	(	idc_value_t *	rv,
		ea_t	where,
		const char *	line,
		qstring *	errbuf = `nullptr`
	)

Compile and calculate an expression.

Parameters

	rv	pointer to the result
	where	the current linear address in the addressing space of the program being disassembled. If will be used to resolve names of local variables etc. if not applicable, then should be BADADDR.
	line	the expression to evaluate
[out]	errbuf	buffer for the error message

Return values

true	ok
false	error, see errbuf

◆ eval_idc_expr()

idaman bool ida_export eval_idc_expr	(	idc_value_t *	rv,
		ea_t	where,
		const char *	buf,
		qstring *	errbuf = `nullptr`
	)

Same as eval_expr(), but will always use the IDC interpreter regardless of the currently installed extlang.

◆ compile_idc_snippet()

idaman bool ida_export compile_idc_snippet	(	const char *	func,
		const char *	text,
		qstring *	errbuf = `nullptr`,
		idc_resolver_t *	resolver = `nullptr`,
		bool	only_safe_funcs = `false`
	)

Compile text with IDC statements.

Parameters

	func	name of the function to create out of the snippet
	text	text to compile
[out]	errbuf	buffer for the error message
	resolver	callback object to get values of undefined variables This object will be called if IDC function contains references to undefined variables. May be nullptr.
	only_safe_funcs	if true, any calls to functions without EXTFUN_SAFE flag will lead to a compilation error.

Return values

true	ok
false	error, see errbuf

◆ call_idc_func()

idaman bool ida_export call_idc_func	(	idc_value_t *	result,
		const char *	fname,
		const idc_value_t	args[],
		size_t	argsnum,
		qstring *	errbuf = `nullptr`,
		idc_resolver_t *	resolver = `nullptr`
	)

Execute an IDC function.

Parameters

[out]	result	pointer to idc_value_t to hold the return value of the function. If execution fails, this variable will contain the exception information. Can be nullptr if return value is not required.
	fname	function name. User-defined functions, built-in functions, and plugin-defined functions are accepted.
	args	array of parameters
	argsnum	number of parameters to pass to 'fname'. This number should be equal to number of parameters the function expects.
[out]	errbuf	buffer for the error message
	resolver	callback object to get values of undefined variables This object will be called if IDC function contains references to undefined variables. May be nullptr.

Return values

true	ok
false	error, see errbuf

◆ exec_idc_script()

THREAD_SAFE bool exec_idc_script	(	idc_value_t *	result,
		const char *	path,
		const char *	func,
		const idc_value_t	args[],
		size_t	argsnum,
		qstring *	errbuf = `nullptr`
	)

inline

Compile and execute IDC function(s) from file.

Parameters

	result	ptr to idc_value_t to hold result of the function. If execution fails, this variable will contain the exception information. You may pass nullptr if you are not interested in the returned value.
	path	text file containing text of IDC functions
	func	function name to execute
	args	array of parameters
	argsnum	number of parameters to pass to 'fname' This number should be equal to number of parameters the function expects.
[out]	errbuf	buffer for the error message

Return values

true	ok
false	error, see errbuf

◆ eval_idc_snippet()

idaman bool ida_export eval_idc_snippet	(	idc_value_t *	result,
		const char *	line,
		qstring *	errbuf = `nullptr`,
		idc_resolver_t *	resolver = `nullptr`
	)

Compile and execute IDC statements or expressions.

Parameters

	result	ptr to idc_value_t to hold result of the function. If execution fails, this variable will contain the exception information. You may pass nullptr if you are not interested in the returned value.
	line	body of IDC the function
[out]	errbuf	buffer for the error message
	resolver	callback object to get values of undefined variables This object will be called if IDC function contains references to undefined variables. May be nullptr.

Returns: success

Note: see also eval_idc_expr()

◆ setup_lowcnd_regfuncs()

idaman void ida_export setup_lowcnd_regfuncs	(	idc_func_t *	getreg,
		idc_func_t *	setreg
	)

Setup lowcnd callbacks to read/write registers.

These callbacks will be used by the idc engine to read/write registers while calculating low level breakpoint conditions for local debuggers.

◆ get_idptype_and_data()

THREAD_SAFE bool get_idptype_and_data	(	int *	vtype,
		const void **	vdata,
		const idc_value_t &	v
	)

inline

Extract type & data from the idc_value_t instance that was passed to parse_config_value().

Parameters

vtype	pointer to storage that will hold the type (IDPOPT_T)
vdata	pointer to storage that contains the value (see IDPOPT_T for what type of data is pointed to.)
v	the value holder

Returns: true in case of success, false if 'v' is of unexpected type

◆ throw_idc_exception()

idaman error_t ida_export throw_idc_exception	(	idc_value_t *	r,
		const char *	desc
	)

Create an idc execution exception object.

This helper function can be used to return an exception from C++ code to IDC. In other words this function can be called from idc_func_t() callbacks. Sample usage: if ( !ok ) return throw_idc_exception(r, "detailed error msg");

Parameters

r	object to hold the exception object
desc	exception description

Returns: eExecThrow

IDA SDK: expr.hpp File Reference

Classes

Macros

Functions

Enumerate object attributes

Set user-defined functions to work with object attributes.

Detailed Description

Macro Definition Documentation

◆ VT_WILD

◆ EXTFUN_NORET

◆ EXTFUN_SAFE

Typedef Documentation

◆ idc_func_t

Function Documentation

◆ idcv_long()

◆ idcv_int64()

◆ idcv_num()

◆ idcv_object()

◆ move_idcv()

◆ copy_idcv()

◆ deep_copy_idcv()

◆ free_idcv()

◆ get_idcv_class_name()

◆ get_idcv_attr()

◆ set_idcv_attr()

◆ del_idcv_attr()

◆ get_idcv_slice()

◆ set_idcv_slice()

◆ add_idc_class()

◆ find_idc_class()

◆ set_idc_method()

◆ set_idc_dtor()

◆ deref_idcv()

◆ create_idcv_ref()

◆ add_idc_gvar()

◆ find_idc_gvar()

◆ add_idc_func()

◆ install_extlang()

◆ remove_extlang()

◆ select_extlang()

◆ set_header_path()

◆ get_idc_filename()

◆ exec_system_script()

◆ eval_expr_long()

◆ eval_expr()

◆ eval_idc_expr()

◆ compile_idc_snippet()

◆ call_idc_func()

◆ exec_idc_script()

◆ eval_idc_snippet()

◆ setup_lowcnd_regfuncs()

◆ get_idptype_and_data()

◆ throw_idc_exception()