| // RUN: %target-build-swift -parse-as-library -sanitize=fuzzer %s -o %t |
| // RUN: not %t -only_ascii=1 -max_len=3 | %FileCheck %s |
| // REQUIRES: CPU=x86_64 |
| // REQUIRES: executable_test |
| // REQUIRES: fuzzer_runtime |
| // XFAIL: OS=ios |
| // XFAIL: OS=tvos |
| // XFAIL: OS=watchos |
| // CHECK: Crash! |
| |
| #if canImport(Darwin) |
| import Darwin.C |
| #elseif canImport(Glibc) |
| import Glibc |
| #elseif canImport(MSVCRT) |
| import MSVCRT |
| #endif |
| |
| @_cdecl("LLVMFuzzerTestOneInput") |
| public func testHexDigits(_ start: UnsafeRawPointer, _ count: Int) -> CInt { |
| let bytes = UnsafeRawBufferPointer(start: start, count: count) |
| let string = String(decoding: bytes, as: Unicode.UTF8.self) |
| if let number = Int(string, radix: 16), (0x10...0xFF).contains(number) { |
| print("Crash!") |
| fflush(stdout) |
| exit(EXIT_FAILURE) |
| } |
| return 0 |
| } |
