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-rw-r--r--lib/Fuzzer/FuzzerUtil.cpp225
1 files changed, 0 insertions, 225 deletions
diff --git a/lib/Fuzzer/FuzzerUtil.cpp b/lib/Fuzzer/FuzzerUtil.cpp
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index 2d95f40e46a1..000000000000
--- a/lib/Fuzzer/FuzzerUtil.cpp
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-//===- FuzzerUtil.cpp - Misc utils ----------------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-// Misc utils.
-//===----------------------------------------------------------------------===//
-
-#include "FuzzerUtil.h"
-#include "FuzzerIO.h"
-#include "FuzzerInternal.h"
-#include <cassert>
-#include <chrono>
-#include <cstring>
-#include <errno.h>
-#include <signal.h>
-#include <sstream>
-#include <stdio.h>
-#include <sys/types.h>
-#include <thread>
-
-namespace fuzzer {
-
-void PrintHexArray(const uint8_t *Data, size_t Size,
- const char *PrintAfter) {
- for (size_t i = 0; i < Size; i++)
- Printf("0x%x,", (unsigned)Data[i]);
- Printf("%s", PrintAfter);
-}
-
-void Print(const Unit &v, const char *PrintAfter) {
- PrintHexArray(v.data(), v.size(), PrintAfter);
-}
-
-void PrintASCIIByte(uint8_t Byte) {
- if (Byte == '\\')
- Printf("\\\\");
- else if (Byte == '"')
- Printf("\\\"");
- else if (Byte >= 32 && Byte < 127)
- Printf("%c", Byte);
- else
- Printf("\\x%02x", Byte);
-}
-
-void PrintASCII(const uint8_t *Data, size_t Size, const char *PrintAfter) {
- for (size_t i = 0; i < Size; i++)
- PrintASCIIByte(Data[i]);
- Printf("%s", PrintAfter);
-}
-
-void PrintASCII(const Unit &U, const char *PrintAfter) {
- PrintASCII(U.data(), U.size(), PrintAfter);
-}
-
-bool ToASCII(uint8_t *Data, size_t Size) {
- bool Changed = false;
- for (size_t i = 0; i < Size; i++) {
- uint8_t &X = Data[i];
- auto NewX = X;
- NewX &= 127;
- if (!isspace(NewX) && !isprint(NewX))
- NewX = ' ';
- Changed |= NewX != X;
- X = NewX;
- }
- return Changed;
-}
-
-bool IsASCII(const Unit &U) { return IsASCII(U.data(), U.size()); }
-
-bool IsASCII(const uint8_t *Data, size_t Size) {
- for (size_t i = 0; i < Size; i++)
- if (!(isprint(Data[i]) || isspace(Data[i]))) return false;
- return true;
-}
-
-bool ParseOneDictionaryEntry(const std::string &Str, Unit *U) {
- U->clear();
- if (Str.empty()) return false;
- size_t L = 0, R = Str.size() - 1; // We are parsing the range [L,R].
- // Skip spaces from both sides.
- while (L < R && isspace(Str[L])) L++;
- while (R > L && isspace(Str[R])) R--;
- if (R - L < 2) return false;
- // Check the closing "
- if (Str[R] != '"') return false;
- R--;
- // Find the opening "
- while (L < R && Str[L] != '"') L++;
- if (L >= R) return false;
- assert(Str[L] == '\"');
- L++;
- assert(L <= R);
- for (size_t Pos = L; Pos <= R; Pos++) {
- uint8_t V = (uint8_t)Str[Pos];
- if (!isprint(V) && !isspace(V)) return false;
- if (V =='\\') {
- // Handle '\\'
- if (Pos + 1 <= R && (Str[Pos + 1] == '\\' || Str[Pos + 1] == '"')) {
- U->push_back(Str[Pos + 1]);
- Pos++;
- continue;
- }
- // Handle '\xAB'
- if (Pos + 3 <= R && Str[Pos + 1] == 'x'
- && isxdigit(Str[Pos + 2]) && isxdigit(Str[Pos + 3])) {
- char Hex[] = "0xAA";
- Hex[2] = Str[Pos + 2];
- Hex[3] = Str[Pos + 3];
- U->push_back(strtol(Hex, nullptr, 16));
- Pos += 3;
- continue;
- }
- return false; // Invalid escape.
- } else {
- // Any other character.
- U->push_back(V);
- }
- }
- return true;
-}
-
-bool ParseDictionaryFile(const std::string &Text, std::vector<Unit> *Units) {
- if (Text.empty()) {
- Printf("ParseDictionaryFile: file does not exist or is empty\n");
- return false;
- }
- std::istringstream ISS(Text);
- Units->clear();
- Unit U;
- int LineNo = 0;
- std::string S;
- while (std::getline(ISS, S, '\n')) {
- LineNo++;
- size_t Pos = 0;
- while (Pos < S.size() && isspace(S[Pos])) Pos++; // Skip spaces.
- if (Pos == S.size()) continue; // Empty line.
- if (S[Pos] == '#') continue; // Comment line.
- if (ParseOneDictionaryEntry(S, &U)) {
- Units->push_back(U);
- } else {
- Printf("ParseDictionaryFile: error in line %d\n\t\t%s\n", LineNo,
- S.c_str());
- return false;
- }
- }
- return true;
-}
-
-std::string Base64(const Unit &U) {
- static const char Table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
- "abcdefghijklmnopqrstuvwxyz"
- "0123456789+/";
- std::string Res;
- size_t i;
- for (i = 0; i + 2 < U.size(); i += 3) {
- uint32_t x = (U[i] << 16) + (U[i + 1] << 8) + U[i + 2];
- Res += Table[(x >> 18) & 63];
- Res += Table[(x >> 12) & 63];
- Res += Table[(x >> 6) & 63];
- Res += Table[x & 63];
- }
- if (i + 1 == U.size()) {
- uint32_t x = (U[i] << 16);
- Res += Table[(x >> 18) & 63];
- Res += Table[(x >> 12) & 63];
- Res += "==";
- } else if (i + 2 == U.size()) {
- uint32_t x = (U[i] << 16) + (U[i + 1] << 8);
- Res += Table[(x >> 18) & 63];
- Res += Table[(x >> 12) & 63];
- Res += Table[(x >> 6) & 63];
- Res += "=";
- }
- return Res;
-}
-
-std::string DescribePC(const char *SymbolizedFMT, uintptr_t PC) {
- if (!EF->__sanitizer_symbolize_pc) return "<can not symbolize>";
- char PcDescr[1024];
- EF->__sanitizer_symbolize_pc(reinterpret_cast<void*>(PC),
- SymbolizedFMT, PcDescr, sizeof(PcDescr));
- PcDescr[sizeof(PcDescr) - 1] = 0; // Just in case.
- return PcDescr;
-}
-
-void PrintPC(const char *SymbolizedFMT, const char *FallbackFMT, uintptr_t PC) {
- if (EF->__sanitizer_symbolize_pc)
- Printf("%s", DescribePC(SymbolizedFMT, PC).c_str());
- else
- Printf(FallbackFMT, PC);
-}
-
-unsigned NumberOfCpuCores() {
- unsigned N = std::thread::hardware_concurrency();
- if (!N) {
- Printf("WARNING: std::thread::hardware_concurrency not well defined for "
- "your platform. Assuming CPU count of 1.\n");
- N = 1;
- }
- return N;
-}
-
-bool ExecuteCommandAndReadOutput(const std::string &Command, std::string *Out) {
- FILE *Pipe = OpenProcessPipe(Command.c_str(), "r");
- if (!Pipe) return false;
- char Buff[1024];
- size_t N;
- while ((N = fread(Buff, 1, sizeof(Buff), Pipe)) > 0)
- Out->append(Buff, N);
- return true;
-}
-
-size_t SimpleFastHash(const uint8_t *Data, size_t Size) {
- size_t Res = 0;
- for (size_t i = 0; i < Size; i++)
- Res = Res * 11 + Data[i];
- return Res;
-}
-
-} // namespace fuzzer
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