File: Switch2Test.cpp

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (36 lines) | stat: -rw-r--r-- 939 bytes parent folder | download | duplicates (26) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
 
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

// Simple test for a fuzzer. The fuzzer must find the interesting switch value.
#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>

int Switch(int a) {
  switch(a) {
    case 100001: return 1;
    case 100002: return 2;
    case 100003: return 4;
  }
  return 0;
}

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  const int N = 3;
  if (Size < N * sizeof(int)) return 0;
  int Res = 0;
  for (int i = 0; i < N; i++) {
    int X;
    memcpy(&X, Data + i * sizeof(int), sizeof(int));
    Res += Switch(X);
  }
  if (Res == 5 || Res == 3 || Res == 6 || Res == 7) {
    fprintf(stderr, "BINGO; Found the target, exiting; Res=%d\n", Res);
    exit(1);
  }
  return 0;
}