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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 "FuzzerInternal.h"
#include <iostream>
#include <sys/time.h>
#include <cassert>
#include <cstring>
#include <signal.h>
namespace fuzzer {
void Print(const Unit &v, const char *PrintAfter) {
std::cerr << v.size() << ": ";
for (auto x : v)
std::cerr << (unsigned) x << " ";
std::cerr << PrintAfter;
}
void PrintASCII(const Unit &U, const char *PrintAfter) {
for (auto X : U)
std::cerr << (char)((isascii(X) && X >= ' ') ? X : '?');
std::cerr << PrintAfter;
}
std::string Hash(const Unit &in) {
size_t h1 = 0, h2 = 0;
for (auto x : in) {
h1 += x;
h1 *= 5;
h2 += x;
h2 *= 7;
}
return std::to_string(h1) + std::to_string(h2);
}
static void AlarmHandler(int, siginfo_t *, void *) {
Fuzzer::AlarmCallback();
}
void SetTimer(int Seconds) {
struct itimerval T {{Seconds, 0}, {Seconds, 0}};
std::cerr << "SetTimer " << Seconds << "\n";
int Res = setitimer(ITIMER_REAL, &T, nullptr);
assert(Res == 0);
struct sigaction sigact;
memset(&sigact, 0, sizeof(sigact));
sigact.sa_sigaction = AlarmHandler;
Res = sigaction(SIGALRM, &sigact, 0);
assert(Res == 0);
}
} // namespace fuzzer
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