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annotate projects/compiler-rt/test/fuzzer/SwitchTest.cpp @ 181:df311c476dd5

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CreateIdentifierInfo in ParseCbC (not yet worked)
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 31 May 2020 12:30:11 +0900
parents f476a9ba4795
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
131
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1 // This file is distributed under the University of Illinois Open Source
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2 // License. See LICENSE.TXT for details.
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3
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4 // Simple test for a fuzzer. The fuzzer must find the interesting switch value.
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5 #include <cstddef>
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6 #include <cstdint>
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7 #include <cstdio>
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8 #include <cstdlib>
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9 #include <cstring>
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10
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11 static volatile int Sink;
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12
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13 template<class T>
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14 bool Switch(const uint8_t *Data, size_t Size) {
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15 T X;
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16 if (Size < sizeof(X)) return false;
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17 memcpy(&X, Data, sizeof(X));
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18 switch (X) {
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19 case 1: Sink = __LINE__; break;
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20 case 101: Sink = __LINE__; break;
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21 case 1001: Sink = __LINE__; break;
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22 case 10001: Sink = __LINE__; break;
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23 case 100001: Sink = __LINE__; break;
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24 case 1000001: Sink = __LINE__; break;
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25 case 10000001: Sink = __LINE__; break;
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26 case 100000001: return true;
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27 }
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28 return false;
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29 }
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30
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31 bool ShortSwitch(const uint8_t *Data, size_t Size) {
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32 short X;
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33 if (Size < sizeof(short)) return false;
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34 memcpy(&X, Data, sizeof(short));
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35 switch(X) {
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36 case 42: Sink = __LINE__; break;
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37 case 402: Sink = __LINE__; break;
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38 case 4002: Sink = __LINE__; break;
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39 case 5002: Sink = __LINE__; break;
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40 case 7002: Sink = __LINE__; break;
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41 case 9002: Sink = __LINE__; break;
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42 case 14002: Sink = __LINE__; break;
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43 case 21402: return true;
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44 }
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45 return false;
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46 }
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47
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48 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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49 if (Size >= 4 && Switch<int>(Data, Size) &&
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50 Size >= 12 && Switch<uint64_t>(Data + 4, Size - 4) &&
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51 Size >= 14 && ShortSwitch(Data + 12, 2)
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52 ) {
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53 fprintf(stderr, "BINGO; Found the target, exiting\n");
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54 exit(1);
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55 }
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56 return 0;
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57 }
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58