mirror of
				https://github.com/KevinMidboe/linguist.git
				synced 2025-10-29 17:50:22 +00:00 
			
		
		
		
	Merge pull request #1432 from pchaigno/cycript
Support for Cycript language
This commit is contained in:
		| @@ -479,6 +479,12 @@ Cuda: | ||||
|   - .cu | ||||
|   - .cuh | ||||
|  | ||||
| Cycript: | ||||
|   type: programming | ||||
|   lexer: JavaScript | ||||
|   extensions: | ||||
|   - .cy | ||||
|  | ||||
| Cython: | ||||
|   type: programming | ||||
|   group: Python | ||||
|   | ||||
							
								
								
									
										580
									
								
								samples/Cycript/utils.cy
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										580
									
								
								samples/Cycript/utils.cy
									
									
									
									
									
										Normal file
									
								
							| @@ -0,0 +1,580 @@ | ||||
| (function(utils) { | ||||
| 	// Load C functions declared in utils.loadFuncs | ||||
| 	var shouldLoadCFuncs = true; | ||||
| 	// Expose the C functions to cycript's global scope | ||||
| 	var shouldExposeCFuncs = true; | ||||
| 	// Expose C constants to cycript's global scope | ||||
| 	var shouldExposeConsts = true; | ||||
| 	// Expose functions defined here to cycript's global scope | ||||
| 	var shouldExposeFuncs = true; | ||||
| 	// Which functions to expose | ||||
| 	var funcsToExpose = ["exec", "include", "sizeof", "logify", "apply", "str2voidPtr", "voidPtr2str", "double2voidPtr", "voidPtr2double", "isMemoryReadable", "isObject", "makeStruct"]; | ||||
| 	 | ||||
| 	// C functions that utils.loadFuncs loads | ||||
| 	var CFuncsDeclarations = [ | ||||
| 		// <stdlib.h> | ||||
| 		"void *calloc(size_t num, size_t size)", | ||||
| 		// <string.h> | ||||
| 		"char *strcpy(char *restrict dst, const char *restrict src)", | ||||
| 		"char *strdup(const char *s1)", | ||||
| 		"void* memset(void* dest, int ch, size_t count)", | ||||
| 		// <stdio.h> | ||||
| 		"FILE *fopen(const char *, const char *)", | ||||
| 		"int fclose(FILE *)", | ||||
| 		"size_t fread(void *restrict, size_t, size_t, FILE *restrict)", | ||||
| 		"size_t fwrite(const void *restrict, size_t, size_t, FILE *restrict)", | ||||
| 		// <mach.h> | ||||
| 		"mach_port_t mach_task_self()", | ||||
| 		"kern_return_t task_for_pid(mach_port_name_t target_tport, int pid, mach_port_name_t *tn)", | ||||
| 		"kern_return_t mach_vm_protect(vm_map_t target_task, mach_vm_address_t address, mach_vm_size_t size, boolean_t set_maximum, vm_prot_t new_protection)", | ||||
| 		"kern_return_t mach_vm_write(vm_map_t target_task, mach_vm_address_t address, vm_offset_t data, mach_msg_type_number_t dataCnt)", | ||||
| 		"kern_return_t mach_vm_read(vm_map_t target_task, mach_vm_address_t address, mach_vm_size_t size, vm_offset_t *data, mach_msg_type_number_t *dataCnt)", | ||||
| 	]; | ||||
| 	 | ||||
| 	/* | ||||
| 		Replacement for eval that can handle @encode etc. | ||||
| 		 | ||||
| 		Usage: | ||||
| 			cy# utils.exec("@encode(void *(int, char))") | ||||
| 			@encode(void*(int,char)) | ||||
| 	*/ | ||||
| 	utils.exec = function(str) { | ||||
| 		var mkdir = @encode(int (const char *, int))(dlsym(RTLD_DEFAULT, "mkdir")); | ||||
| 		var tempnam = @encode(char *(const char *, const char *))(dlsym(RTLD_DEFAULT, "tempnam")); | ||||
| 		var fopen = @encode(void *(const char *, const char *))(dlsym(RTLD_DEFAULT, "fopen")); | ||||
| 		var fclose = @encode(int (void *))(dlsym(RTLD_DEFAULT, "fclose")); | ||||
| 		var fwrite = @encode(int (const char *, int, int, void *))(dlsym(RTLD_DEFAULT, "fwrite")); | ||||
| 		var symlink = @encode(int (const char *, const char *))(dlsym(RTLD_DEFAULT, "symlink")); | ||||
| 		var unlink = @encode(int (const char *))(dlsym(RTLD_DEFAULT, "unlink")); | ||||
| 		var getenv = @encode(const char *(const char *))(dlsym(RTLD_DEFAULT, "getenv")); | ||||
| 		var setenv = @encode(int (const char *, const char *, int))(dlsym(RTLD_DEFAULT, "setenv")); | ||||
| 		 | ||||
| 		var libdir = "/usr/lib/cycript0.9"; | ||||
| 		var dir = libdir + "/tmp"; | ||||
|  | ||||
| 		mkdir(dir, 0777); | ||||
| 		 | ||||
| 		// This is needed because tempnam seems to ignore the first argument on i386 | ||||
| 		var old_tmpdir = getenv("TMPDIR"); | ||||
| 		setenv("TMPDIR", dir, 1); | ||||
|  | ||||
| 		// No freeing :( | ||||
| 		var f = tempnam(dir, "exec-"); | ||||
| 		setenv("TMPDIR", old_tmpdir, 1); | ||||
| 		if(!f) { | ||||
| 			return false; | ||||
| 		} | ||||
|  | ||||
| 		symlink(f, f + ".cy"); | ||||
| 		 | ||||
| 		str = "exports.result = " + str; | ||||
|  | ||||
| 		var handle = fopen(f, "w"); | ||||
| 		fwrite(str, str.length, 1, handle); | ||||
| 		fclose(handle); | ||||
| 		 | ||||
| 		var r; | ||||
| 		var except = null; | ||||
| 		try { | ||||
| 			r = require(f.replace(libdir + "/", "")); | ||||
| 		} catch(e) { | ||||
| 			except = e; | ||||
| 		} | ||||
|  | ||||
| 		unlink(f + ".cy"); | ||||
| 		unlink(f); | ||||
| 		 | ||||
| 		if(except !== null) { | ||||
| 			throw except; | ||||
| 		} | ||||
|  | ||||
| 		return r.result; | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		Applies known typedefs | ||||
| 		Used in utils.include and utils.makeStruct | ||||
| 		 | ||||
| 		Usage: | ||||
| 			cy# utils.applyTypedefs("mach_vm_address_t") | ||||
| 			"uint64_t" | ||||
| 	*/ | ||||
| 	utils.applyTypedefs = function(str) { | ||||
| 		var typedefs = { | ||||
| 			"struct": "", | ||||
| 			"restrict": "", | ||||
| 			"FILE": "void", | ||||
| 			"size_t": "uint64_t", | ||||
| 			"uintptr_t": "unsigned long", | ||||
| 			"kern_return_t": "int", | ||||
| 			"mach_port_t": "unsigned int", | ||||
| 			"mach_port_name_t": "unsigned int", | ||||
| 			"vm_offset_t": "unsigned long", | ||||
| 			"vm_size_t": "unsigned long", | ||||
| 			"mach_vm_address_t": "uint64_t", | ||||
| 			"mach_vm_offset_t": "uint64_t", | ||||
| 			"mach_vm_size_t": "uint64_t", | ||||
| 			"vm_map_offset_t": "uint64_t", | ||||
| 			"vm_map_address_t": "uint64_t", | ||||
| 			"vm_map_size_t": "uint64_t", | ||||
| 			"mach_port_context_t": "uint64_t", | ||||
| 			"vm_map_t": "unsigned int", | ||||
| 			"boolean_t": "unsigned int", | ||||
| 			"vm_prot_t": "int", | ||||
| 			"mach_msg_type_number_t": "unsigned int", | ||||
| 			"cpu_type_t": "int", | ||||
| 			"cpu_subtype_t": "int", | ||||
| 			"cpu_threadtype_t": "int", | ||||
| 		}; | ||||
| 		 | ||||
| 		for(var k in typedefs) { | ||||
| 			str = str.replace(new RegExp("(\\s|\\*|,|\\(|^)" + k + "(\\s|\\*|,|\\)|$)", "g"), "$1" + typedefs[k] + "$2"); | ||||
| 		} | ||||
| 		 | ||||
| 		return str; | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		Parses a C function declaration and returns the function name and cycript type | ||||
| 		If load is true, tries to load it into cycript using utils.exec | ||||
| 		 | ||||
| 		Usage: | ||||
| 			cy# var str = "void *calloc(size_t num, size_t size)"; | ||||
| 			"void *calloc(size_t num, size_t size)" | ||||
| 			cy# utils.include(str) | ||||
| 			["calloc","@encode(void *(uint64_t num,  uint64_t size))(140735674376857)"] | ||||
| 			cy# var ret = utils.include(str, true) | ||||
| 			["calloc",0x7fff93e0e299] | ||||
| 			cy# ret[1].type | ||||
| 			@encode(void*(unsigned long long int,unsigned long long int)) | ||||
| 			cy# ret[1](100, 1) | ||||
| 			0x100444100 | ||||
| 	*/ | ||||
| 	utils.include = function(str, load) { | ||||
| 		var re = /^\s*([^(]*(?:\s+|\*))(\w*)\s*\(([^)]*)\)\s*;?\s*$/; | ||||
| 		var match = re.exec(str); | ||||
| 		if(!match) { | ||||
| 			return -1; | ||||
| 		} | ||||
| 		var rType = utils.applyTypedefs(match[1]); | ||||
| 		var name = match[2]; | ||||
| 		var args = match[3]; | ||||
|  | ||||
| 		var argsRe = /([^,]+)(?:,|$)/g; | ||||
| 		var argsTypes = []; | ||||
| 		while((match = argsRe.exec(args)) !== null) { | ||||
| 			var type = utils.applyTypedefs(match[1]); | ||||
| 			argsTypes.push(type); | ||||
| 		} | ||||
| 		 | ||||
| 		var encodeString = "@encode("; | ||||
| 		encodeString += rType + "("; | ||||
| 		encodeString += argsTypes.join(", ") + "))"; | ||||
|  | ||||
| 		var fun = dlsym(RTLD_DEFAULT, name); | ||||
| 		if(fun !== null) { | ||||
| 			encodeString += "(" + fun + ")"; | ||||
| 			if(load) { | ||||
| 				return [name, utils.exec(encodeString)]; | ||||
| 			} | ||||
| 		} else if(load) { | ||||
| 			throw "Function couldn't be found with dlsym!"; | ||||
| 		} | ||||
|  | ||||
| 		return [name, encodeString]; | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		Loads the function declaration in the defs array using utils.exec and exposes to cycript's global scope | ||||
| 		Is automatically called if shouldLoadCFuncs is true | ||||
| 	*/ | ||||
| 	utils.funcs = {}; | ||||
| 	utils.loadfuncs = function(expose) { | ||||
| 		for(var i = 0; i < CFuncsDeclarations.length; i++) { | ||||
| 			try { | ||||
| 				var o = utils.include(CFuncsDeclarations[i], true); | ||||
| 				utils.funcs[o[0]] = o[1]; | ||||
| 				if(expose) { | ||||
| 					Cycript.all[o[0]] = o[1]; | ||||
| 				} | ||||
| 			} catch(e) { | ||||
| 				system.print("Failed to load function: " + i); | ||||
| 				try { | ||||
| 					system.print(utils.include(CFuncsDeclarations[i])); | ||||
| 				} catch(e2) { | ||||
| 					 | ||||
| 				} | ||||
| 			} | ||||
| 		} | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		Calculates the size of a type like the C operator sizeof | ||||
| 		 | ||||
| 		Usage: | ||||
| 			cy# utils.sizeof(int) | ||||
| 			4 | ||||
| 			cy# utils.sizeof(@encode(void *)) | ||||
| 			8 | ||||
| 			cy# utils.sizeof("mach_vm_address_t") | ||||
| 			8 | ||||
| 	*/ | ||||
| 	utils.sizeof = function(type) { | ||||
| 		if(typeof type === "string") { | ||||
| 			type = utils.applyTypedefs(type); | ||||
| 			type = utils.exec("@encode(" + type + ")"); | ||||
| 		} | ||||
| 		 | ||||
| 		// (const) char * has "infinite" preceision | ||||
| 		if(type.toString().slice(-1) === "*") { | ||||
| 			return utils.sizeof(@encode(void *)); | ||||
| 		} | ||||
| 		 | ||||
| 		// float and double | ||||
| 		if(type.toString() === @encode(float).toString()) { | ||||
| 			return 4; | ||||
| 		} else if (type.toString() === @encode(double).toString()) { | ||||
| 			return 8; | ||||
| 		} | ||||
|  | ||||
| 		var typeInstance = type(0); | ||||
| 		 | ||||
| 		if(typeInstance instanceof Object) { | ||||
| 			// Arrays | ||||
| 			if("length" in typeInstance) { | ||||
| 				return typeInstance.length * utils.sizeof(typeInstance.type); | ||||
| 			} | ||||
| 			 | ||||
| 			// Structs | ||||
| 			if(typeInstance.toString() === "[object Struct]") { | ||||
| 				var typeStr = type.toString(); | ||||
| 				var arrayTypeStr = "[2" + typeStr + "]"; | ||||
| 				var arrayType = new Type(arrayTypeStr); | ||||
| 				 | ||||
| 				var arrayInstance = new arrayType; | ||||
| 				 | ||||
| 				return @encode(void *)(&(arrayInstance[1])) - @encode(void *)(&(arrayInstance[0])); | ||||
| 			} | ||||
| 		} | ||||
| 		 | ||||
| 		for(var i = 0; i < 5; i++) { | ||||
| 			var maxSigned = Math.pow(2, 8 * Math.pow(2, i) - 1) - 1; | ||||
| 			if(i === 3) { | ||||
| 				// Floating point fix ;^) | ||||
| 				maxSigned /= 1000; | ||||
| 			} | ||||
|  | ||||
| 			// can't use !== or sizeof(void *) === 0.5 | ||||
| 			if(type(maxSigned) != maxSigned) { | ||||
| 				return Math.pow(2, i - 1); | ||||
| 			} | ||||
| 		} | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		Logs a specific message sent to an instance of a class like logify.pl in theos | ||||
| 		Requires Cydia Substrate (com.saurik.substrate.MS) and NSLog (org.cycript.NSLog) modules | ||||
| 		Returns the old message returned by MS.hookMessage (Note: this is not just the old message!) | ||||
| 		 | ||||
| 		Usage: | ||||
| 			cy# var oldm = utils.logify(objc_getMetaClass(NSNumber), @selector(numberWithDouble:)) | ||||
| 			... | ||||
| 			cy# var n = [NSNumber numberWithDouble:1.5] | ||||
| 			2014-07-28 02:26:39.805 cycript[71213:507] +[<NSNumber: 0x10032d0c4> numberWithDouble:1.5] | ||||
| 			2014-07-28 02:26:39.806 cycript[71213:507]  = 1.5 | ||||
| 			@1.5 | ||||
| 	*/ | ||||
| 	utils.logify = function(cls, sel) { | ||||
| 		@import com.saurik.substrate.MS; | ||||
| 		@import org.cycript.NSLog; | ||||
| 		 | ||||
| 		var oldm = {}; | ||||
| 		 | ||||
| 		MS.hookMessage(cls, sel, function() { | ||||
| 			var args = [].slice.call(arguments); | ||||
| 			 | ||||
| 			var selFormat = sel.toString().replace(/:/g, ":%@ ").trim(); | ||||
| 			var logFormat = "%@[<%@: 0x%@> " + selFormat + "]"; | ||||
| 			 | ||||
| 			var standardArgs = [logFormat, class_isMetaClass(cls)? "+": "-", cls.toString(), (&this).valueOf().toString(16)]; | ||||
| 			var logArgs = standardArgs.concat(args); | ||||
| 			 | ||||
| 			NSLog.apply(null, logArgs); | ||||
| 			 | ||||
| 			var r = oldm->apply(this, arguments); | ||||
| 			 | ||||
| 			if(r !== undefined) { | ||||
| 				NSLog(" = %@", r); | ||||
| 			} | ||||
| 			 | ||||
| 			return r; | ||||
| 		}, oldm); | ||||
| 		 | ||||
| 		return oldm; | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		Calls a C function by providing its name and arguments | ||||
| 		Doesn't support structs | ||||
| 		Return value is always a void pointer | ||||
| 		 | ||||
| 		Usage: | ||||
| 			cy# utils.apply("printf", ["%s %.3s, %d -> %c, float: %f\n", "foo", "barrrr", 97, 97, 1.5]) | ||||
| 			foo bar, 97 -> a, float: 1.500000 | ||||
| 			0x22 | ||||
| 	*/ | ||||
| 	utils.apply = function(fun, args) { | ||||
| 		if(!(args instanceof Array)) { | ||||
| 			throw "Args needs to be an array!"; | ||||
| 		} | ||||
| 		 | ||||
| 		var argc = args.length; | ||||
| 		var voidPtr = @encode(void *); | ||||
| 		var argTypes = []; | ||||
| 		for(var i = 0; i < argc; i++) { | ||||
| 			var argType = voidPtr; | ||||
| 			 | ||||
| 			var arg = args[i]; | ||||
| 			if(typeof arg === "string") { | ||||
| 				argType = @encode(char *); | ||||
| 			} | ||||
| 			if(typeof arg === "number" && arg % 1 !== 0) { | ||||
| 				argType = @encode(double); | ||||
| 			} | ||||
| 			 | ||||
| 			argTypes.push(argType); | ||||
| 		} | ||||
| 		 | ||||
| 		var type = voidPtr.functionWith.apply(voidPtr, argTypes); | ||||
| 		 | ||||
| 		if(typeof fun === "string") { | ||||
| 			fun = dlsym(RTLD_DEFAULT, fun); | ||||
| 		} | ||||
| 		 | ||||
| 		if(!fun) { | ||||
| 			throw "Function not found!"; | ||||
| 		} | ||||
|  | ||||
| 		return type(fun).apply(null, args); | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		Converts a string (char *) to a void pointer (void *) | ||||
| 		You can't cast to strings to void pointers and vice versa in cycript. Blame saurik. | ||||
| 		 | ||||
| 		Usage: | ||||
| 			cy# var voidPtr = utils.str2voidPtr("foobar") | ||||
| 			0x100331590 | ||||
| 			cy# utils.voidPtr2str(voidPtr) | ||||
| 			"foobar" | ||||
| 	*/ | ||||
| 	utils.str2voidPtr = function(str) { | ||||
| 		var strdup = @encode(void *(char *))(dlsym(RTLD_DEFAULT, "strdup")); | ||||
| 		return strdup(str); | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		The inverse function of str2voidPtr | ||||
| 	*/ | ||||
| 	utils.voidPtr2str = function(voidPtr) { | ||||
| 		var strdup = @encode(char *(void *))(dlsym(RTLD_DEFAULT, "strdup")); | ||||
| 		return strdup(voidPtr); | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		Converts a double into a void pointer | ||||
| 		This can be used to view the binary representation of a floating point number | ||||
| 		 | ||||
| 		Usage: | ||||
| 			cy# var n = utils.double2voidPtr(-1.5) | ||||
| 			0xbff8000000000000 | ||||
| 			cy# utils.voidPtr2double(n) | ||||
| 			-1.5 | ||||
| 	*/ | ||||
| 	utils.double2voidPtr = function(n) { | ||||
| 		var doublePtr = new double; | ||||
| 		*doublePtr = n; | ||||
| 		 | ||||
| 		var voidPtrPtr = @encode(void **)(doublePtr); | ||||
| 		 | ||||
| 		return *voidPtrPtr; | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		The inverse function of double2voidPtr | ||||
| 	*/ | ||||
| 	utils.voidPtr2double = function(voidPtr) { | ||||
| 		var voidPtrPtr = new @encode(void **); | ||||
| 		*voidPtrPtr = voidPtr; | ||||
| 		 | ||||
| 		var doublePtr = @encode(double *)(voidPtrPtr); | ||||
| 		 | ||||
| 		return *doublePtr; | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		Determines in a safe way if a memory location is readable | ||||
| 		 | ||||
| 		Usage: | ||||
| 			cy# utils.isMemoryReadable(0) | ||||
| 			false | ||||
| 			cy# utils.isMemoryReadable(0x1337) | ||||
| 			false | ||||
| 			cy# utils.isMemoryReadable(NSObject) | ||||
| 			true | ||||
| 			cy# var a = malloc(100); utils.isMemoryReadable(a) | ||||
| 			true | ||||
| 	*/ | ||||
| 	utils.isMemoryReadable = function(ptr) { | ||||
| 		if(typeof ptr === "string") { | ||||
| 			return true; | ||||
| 		} | ||||
| 		 | ||||
| 		var fds = new @encode(int [2]); | ||||
| 		utils.apply("pipe", [fds]); | ||||
| 		var result = utils.apply("write", [fds[1], ptr, 1]) == 1; | ||||
| 		 | ||||
| 		utils.apply("close", [fds[0]]); | ||||
| 		utils.apply("close", [fds[1]]); | ||||
| 		 | ||||
| 		return result; | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		Determines in a safe way if the memory location contains an Objective-C object | ||||
|  | ||||
| 		Usage: | ||||
| 			cy# utils.isObject(0) | ||||
| 			false | ||||
| 			cy# utils.isObject(0x1337) | ||||
| 			false | ||||
| 			cy# utils.isObject(NSObject) | ||||
| 			true | ||||
| 			cy# utils.isObject(objc_getMetaClass(NSObject)) | ||||
| 			true | ||||
| 			cy# utils.isObject([new NSObject init]) | ||||
| 			true | ||||
| 			cy# var a = malloc(100); utils.isObject(a) | ||||
| 			false | ||||
| 			cy# *@encode(void **)(a) = NSObject; utils.isObject(a) | ||||
| 			true | ||||
| 	*/ | ||||
| 	utils.isObject = function(obj) { | ||||
| 		obj = @encode(void *)(obj); | ||||
| 		var lastObj = -1; | ||||
| 		 | ||||
| 		function objc_isa_ptr(obj) { | ||||
| 			// See http://www.sealiesoftware.com/blog/archive/2013/09/24/objc_explain_Non-pointer_isa.html | ||||
| 			var objc_debug_isa_class_mask = 0x00000001fffffffa; | ||||
| 			obj = (obj & 1)? (obj & objc_debug_isa_class_mask): obj; | ||||
| 			 | ||||
| 			if((obj & (utils.sizeof(@encode(void *)) - 1)) != 0) { | ||||
| 				return null; | ||||
| 			} else { | ||||
| 				return obj; | ||||
| 			} | ||||
| 		} | ||||
| 		 | ||||
| 		function ptrValue(obj) { | ||||
| 			return obj? obj.valueOf(): null; | ||||
| 		} | ||||
| 		 | ||||
| 		var foundMetaClass = false; | ||||
| 		 | ||||
| 		for(obj = objc_isa_ptr(obj); utils.isMemoryReadable(obj); ) { | ||||
| 			obj = *@encode(void **)(obj); | ||||
| 			 | ||||
| 			if(ptrValue(obj) == ptrValue(lastObj)) { | ||||
| 				foundMetaClass = true; | ||||
| 				break; | ||||
| 			} | ||||
| 			 | ||||
| 			lastObj = obj; | ||||
| 		} | ||||
| 		 | ||||
| 		if(!foundMetaClass) { | ||||
| 			return false; | ||||
| 		} | ||||
| 		 | ||||
| 		if(lastObj === -1 || lastObj === null) { | ||||
| 			return false; | ||||
| 		} | ||||
| 		 | ||||
| 		var obj_class = objc_isa_ptr(@encode(void **)(obj)[1]); | ||||
| 		 | ||||
| 		if(!utils.isMemoryReadable(obj_class)) { | ||||
| 			return false; | ||||
| 		} | ||||
| 		 | ||||
| 		var metaclass = objc_isa_ptr(@encode(void **)(obj_class)[0]); | ||||
| 		var superclass = objc_isa_ptr(@encode(void **)(obj_class)[1]); | ||||
| 		 | ||||
| 		return ptrValue(obj) == ptrValue(metaclass) && superclass == null; | ||||
| 	}; | ||||
| 	 | ||||
| 	/* | ||||
| 		Creates a cycript struct type from a C struct definition | ||||
| 		 | ||||
| 		Usage: | ||||
| 			cy# var foo = makeStruct("int a; short b; char c; uint64_t d; double e;", "foo"); | ||||
| 			@encode(foo) | ||||
| 			cy# var f = new foo | ||||
| 			&{a:0,b:0,c:0,d:0,e:0} | ||||
| 			cy# f->a = 100; f | ||||
| 			&{a:100,b:0,c:0,d:0,e:0} | ||||
| 			cy# *@encode(int *)(f) | ||||
| 			100 | ||||
| 	*/ | ||||
| 	utils.makeStruct = function(str, name) {		 | ||||
| 		var fieldRe = /(?:\s|\n)*([^;]+\s*(?:\s|\*))([^;]+)\s*;/g; | ||||
| 		 | ||||
| 		if(!name) { | ||||
| 			name = "struct" + Math.floor(Math.random() * 100000); | ||||
| 		} | ||||
| 		var typeStr = "{" + name + "="; | ||||
| 		 | ||||
| 		while((match = fieldRe.exec(str)) !== null) { | ||||
| 			var fieldType = utils.applyTypedefs(match[1]); | ||||
| 			var fieldName = match[2]; | ||||
| 			var encodedType = utils.exec("@encode(" + fieldType + ")").toString(); | ||||
| 			 | ||||
| 			typeStr += '"' + fieldName + '"' + encodedType; | ||||
| 		} | ||||
| 		 | ||||
| 		typeStr += "}"; | ||||
| 		 | ||||
| 		return new Type(typeStr); | ||||
| 	}; | ||||
| 	 | ||||
| 	// Various constants | ||||
| 	utils.constants = { | ||||
| 		VM_PROT_NONE:       0x0, | ||||
| 		VM_PROT_READ:       0x1, | ||||
| 		VM_PROT_WRITE:      0x2, | ||||
| 		VM_PROT_EXECUTE:    0x4, | ||||
| 		VM_PROT_NO_CHANGE:  0x8, | ||||
| 		VM_PROT_COPY:       0x10, | ||||
| 		VM_PROT_WANTS_COPY: 0x10, | ||||
| 		VM_PROT_IS_MASK:    0x40, | ||||
| 	}; | ||||
| 	var c = utils.constants; | ||||
| 	c.VM_PROT_DEFAULT = c.VM_PROT_READ | c.VM_PROT_WRITE; | ||||
| 	c.VM_PROT_ALL =     c.VM_PROT_READ | c.VM_PROT_WRITE | c.VM_PROT_EXECUTE; | ||||
| 	 | ||||
| 	if(shouldExposeConsts) { | ||||
| 		for(var k in c) { | ||||
| 			Cycript.all[k] = c[k]; | ||||
| 		} | ||||
| 	} | ||||
| 	 | ||||
| 	if(shouldExposeFuncs) { | ||||
| 		for(var i = 0; i < funcsToExpose.length; i++) { | ||||
| 			var name = funcsToExpose[i]; | ||||
| 			Cycript.all[name] = utils[name]; | ||||
| 		} | ||||
| 	} | ||||
| 	 | ||||
| 	if(shouldLoadCFuncs) { | ||||
| 		utils.loadfuncs(shouldExposeCFuncs); | ||||
| 	} | ||||
| })(exports); | ||||
		Reference in New Issue
	
	Block a user