| // Copyright 2024 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package unix |
| |
| import ( |
| "internal/abi" |
| "unsafe" |
| ) |
| |
| //go:cgo_import_dynamic libc_arc4random_buf arc4random_buf "/usr/lib/libSystem.B.dylib" |
| |
| func libc_arc4random_buf_trampoline() |
| |
| // ARC4Random calls the macOS arc4random_buf(3) function. |
| func ARC4Random(p []byte) { |
| // macOS 11 and 12 abort if length is 0. |
| if len(p) == 0 { |
| return |
| } |
| syscall_syscall(abi.FuncPCABI0(libc_arc4random_buf_trampoline), |
| uintptr(unsafe.Pointer(unsafe.SliceData(p))), uintptr(len(p)), 0) |
| } |