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//===- FuzzerIO.cpp - IO utils. -------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// IO functions.
//===----------------------------------------------------------------------===//
#include "FuzzerInternal.h"
#include <iterator>
#include <fstream>
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <cstdio>
namespace fuzzer {
static long GetEpoch(const std::string &Path) {
struct stat St;
if (stat(Path.c_str(), &St)) return 0;
return St.st_mtime;
}
static std::vector<std::string> ListFilesInDir(const std::string &Dir,
long *Epoch) {
std::vector<std::string> V;
if (Epoch) {
auto E = GetEpoch(Dir.c_str());
if (*Epoch >= E) return V;
*Epoch = E;
}
DIR *D = opendir(Dir.c_str());
if (!D) return V;
while (auto E = readdir(D)) {
if (E->d_type == DT_REG || E->d_type == DT_LNK)
V.push_back(E->d_name);
}
closedir(D);
return V;
}
Unit FileToVector(const std::string &Path) {
std::ifstream T(Path);
return Unit((std::istreambuf_iterator<char>(T)),
std::istreambuf_iterator<char>());
}
std::string FileToString(const std::string &Path) {
std::ifstream T(Path);
return std::string((std::istreambuf_iterator<char>(T)),
std::istreambuf_iterator<char>());
}
void CopyFileToErr(const std::string &Path) {
Printf("%s", FileToString(Path).c_str());
}
void WriteToFile(const Unit &U, const std::string &Path) {
std::ofstream OF(Path);
OF.write((const char*)U.data(), U.size());
}
void ReadDirToVectorOfUnits(const char *Path, std::vector<Unit> *V,
long *Epoch) {
long E = Epoch ? *Epoch : 0;
for (auto &X : ListFilesInDir(Path, Epoch)) {
auto FilePath = DirPlusFile(Path, X);
if (Epoch && GetEpoch(FilePath) < E) continue;
V->push_back(FileToVector(FilePath));
}
}
std::string DirPlusFile(const std::string &DirPath,
const std::string &FileName) {
return DirPath + "/" + FileName;
}
void PrintFileAsBase64(const std::string &Path) {
std::string Cmd = "base64 -w 0 < " + Path + "; echo";
ExecuteCommand(Cmd);
}
void Printf(const char *Fmt, ...) {
va_list ap;
va_start(ap, Fmt);
vfprintf(stderr, Fmt, ap);
va_end(ap);
}
} // namespace fuzzer
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