C++ (Cpp) r_anal_xrefs_get Examples

Example #1

File: xrefs.c Project: eddyb/radare2

R_API void r_anal_xrefs_init (RAnal *anal) {
	DB = NULL;
	DB = sdb_new (NULL, 0); // TODO
	sdb_aadd (DB, "types", -1, "code"SDB_SS"data", 0);
#if 0
	//...
	r_anal_xrefs_get (anal, "code", 0);
#endif
}

Example #2

File: xrefs.c Project: schrotthaufen/radare2

R_API void r_anal_xrefs_init (RAnal *anal) {
    DB = NULL;
    DB = sdb_new (NULL, "xrefs", 0); // TODO
    sdb_array_set (DB, "types", -1, "code,data", 0);
#if 0
    //...
    r_anal_xrefs_get (anal, "code", 0);
#endif
}

Example #3

File: ref.c Project: dequis/radare2

R_API RList *r_anal_xref_get(RAnal *anal, ut64 addr) {
	return r_anal_xrefs_get (anal, addr);
}

Example #4

File: anal_objc.c Project: l4l/radare2

static bool objc_find_refs(RCore *core) {
	static const char *oldstr = NULL;

	RCoreObjc objc = {0};

	const int objc2ClassSize = 0x28;
	const int objc2ClassInfoOffs = 0x20;
	const int objc2ClassMethSize = 0x18;
	const int objc2ClassBaseMethsOffs = 0x20;
	const int objc2ClassMethImpOffs = 0x10;

	objc.core = core;
	objc.word_size = (core->assembler->bits == 64)? 8: 4;

	RList *sections = r_bin_get_sections (core->bin);
	if (!sections) {
		return false;
	}
	
	RBinSection *s;
	RListIter *iter;
	r_list_foreach (sections, iter, s) {
		const char *name = s->name;
		if (strstr (name, "__objc_data")) {
			objc._data = s;
		} else if (strstr (name, "__objc_selrefs")) {
			objc._selrefs = s;
		} else if (strstr (name, "__objc_msgrefs")) {
			objc._msgrefs = s;
		} else if (strstr (name, "__objc_const")) {
			objc._const = s;
		}
	}
	if (!objc._const) {
		if (core->anal->verbose) {
			eprintf ("Could not find necessary objc_const section\n");
		}
		return false;
	}
	if ((objc._selrefs || objc._msgrefs) && !(objc._data && objc._const)) {
		if (core->anal->verbose) {
			eprintf ("Could not find necessary Objective-C sections...\n");
		}
		return false;
	}

	objc.db = sdb_new0 ();
	if (!objc_build_refs (&objc)) {
		return false;
	}
	oldstr = r_print_rowlog (core->print, "Parsing metadata in ObjC to find hidden xrefs");
	r_print_rowlog_done (core->print, oldstr);

	int total = 0;
	ut64 off;
	for (off = 0; off < objc._data->vsize ; off += objc2ClassSize) {
		ut64 va = objc._data->vaddr + off;
		ut64 classRoVA = readQword (&objc, va + objc2ClassInfoOffs);
		if (isInvalid (classRoVA)) {
			continue;
		}
		ut64 classMethodsVA = readQword (&objc, classRoVA + objc2ClassBaseMethsOffs);
		if (isInvalid (classMethodsVA)) {
			continue;
		}

		int count = readDword (&objc, classMethodsVA + 4);
		classMethodsVA += 8; // advance to start of class methods array
		ut64 from = classMethodsVA;
		ut64 to = from + (objc2ClassMethSize * count);
		ut64 va2;
		for (va2 = from; va2 < to; va2 += objc2ClassMethSize) {
			bool isMsgRef = false;
			ut64 selRefVA = getRefPtr (&objc, va2, &isMsgRef);
			if (!selRefVA) {
				continue;
			}
			// # adjust pointer to beginning of message_ref struct to get xrefs
			if (isMsgRef) {
				selRefVA -= 8;
			}
			ut64 funcVA = readQword (&objc, va2 + objc2ClassMethImpOffs);
			RList *list = r_anal_xrefs_get (core->anal, selRefVA);
			RListIter *iter;
			RAnalRef *ref;
			r_list_foreach (list, iter, ref) {
				r_anal_xrefs_set (core->anal, ref->addr, funcVA, R_META_TYPE_CODE);
				total++;
			}
		}

	}