Commit a11113097730693fb915114cec79df9cb4adcc93 | zig

std: add CCRandomGenerateBytes macOs native api.

2 files changed, 41 insertions(+), 2 deletions(-)

lib/std/c/darwin.zig+28

...	...	@@ -897,7 +897,35 @@ pub extern "c" fn pthread_attr_get_qos_class_np(attr: *pthread_attr_t, qos_class
897	897	pub extern "c" fn pthread_set_qos_class_self_np(qos_class: qos_class_t, relative_priority: c_int) c_int;
898	898	pub extern "c" fn pthread_get_qos_class_np(pthread: std.c.pthread_t, qos_class: qos_class_t, relative_priority: c_int) c_int;
899	899
	900	pub const CCryptorStatus = enum(i32) {
	901	/// Operation completed
	902	kCCSuccess = 0,
	903	/// Illegal parameter
	904	kCCParamError = -4300,
	905	/// Provided buffer too small
	906	kCCBufferTooSmall = -4301,
	907	/// Failed memory allocation
	908	kCCMemoryFailure = -4302,
	909	/// Size alignment issue
	910	kCCAlignmentError = -4303,
	911	/// Decoding issue
	912	kCCDecodeError = -4304,
	913	/// Call not implemented
	914	kCCUnimplemented = -4305,
	915	kCCOverflow = -4306,
	916	kCCRNGFailure = -4307,
	917	/// Unspecified error
	918	kCCUnspecifiedError = -4308,
	919	kCCCallSequenceError = -4309,
	920	kCCKeySizeError = -4310,
	921	/// Invalid key
	922	kCCInvalidKey = -4311,
	923	};
	924
	925	pub const CCRNGStatus = CCryptorStatus;
	926
900	927	pub extern "c" fn arc4random_buf(buf: [*]u8, len: usize) void;
	928	pub extern "c" fn CCRandomGenerateBytes(bytes: ?*anyopaque, count: usize) CCRNGStatus;
901	929
902	930	// Grand Central Dispatch is exposed by libSystem.
903	931	pub extern "c" fn dispatch_release(object: *anyopaque) void;

lib/std/os.zig+13-2

...	...	@@ -512,7 +512,18 @@ pub fn getrandom(buffer: []u8) GetRandomError!void {
512	512	return;
513	513	}
514	514	switch (builtin.os.tag) {
515		.netbsd, .openbsd, .macos, .ios, .tvos, .watchos => {
	515	.macos, .ios => {
	516	const rc = darwin.CCRandomGenerateBytes(buffer.ptr, buffer.len);
	517	if (rc != darwin.CCRNGStatus.kCCSuccess) {
	518	if (rc == darwin.CCRNGStatus.kCCParamError or rc == darwin.CCRNGStatus.kCCBufferTooSmall) {
	519	return error.InvalidHandle;
	520	} else {
	521	return error.SystemResources;
	522	}
	523	}
	524	return;
	525	},
	526	.netbsd, .openbsd, .tvos, .watchos => {
516	527	system.arc4random_buf(buffer.ptr, buffer.len);
517	528	return;
518	529	},
...	...	@@ -991,7 +1002,7 @@ pub fn preadv(fd: fd_t, iov: []const iovec, offset: u64) PReadError!usize {
991	1002	if (have_pread_but_not_preadv) {
992	1003	// We could loop here; but proper usage of `preadv` must handle partial reads anyway.
993	1004	// So we simply read into the first vector only.
994		if (iov.len == 0) return @as(usize, 0);
	1005	if (iov.len == 0) return @intCast(usize, 0);
995	1006	const first = iov[0];
996	1007	return pread(fd, first.iov_base[0..first.iov_len], offset);
997	1008	}