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//===- FuzzerIOWindows.cpp - IO utils for Windows. ------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// IO functions implementation for Windows.
//===----------------------------------------------------------------------===//
#include "FuzzerDefs.h"
#if LIBFUZZER_WINDOWS
#include "FuzzerExtFunctions.h"
#include "FuzzerIO.h"
#include <cstdarg>
#include <cstdio>
#include <fstream>
#include <io.h>
#include <iterator>
#include <sys/types.h>
#include <sys/stat.h>
#include <windows.h>
namespace fuzzer {
static bool IsFile(const std::string &Path, const DWORD &FileAttributes) {
if (FileAttributes & FILE_ATTRIBUTE_NORMAL)
return true;
if (FileAttributes & FILE_ATTRIBUTE_DIRECTORY)
return false;
HANDLE FileHandle(
CreateFileA(Path.c_str(), 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS, 0));
if (FileHandle == INVALID_HANDLE_VALUE) {
Printf("CreateFileA() failed for \"%s\" (Error code: %lu).\n", Path.c_str(),
GetLastError());
return false;
}
DWORD FileType = GetFileType(FileHandle);
if (FileType == FILE_TYPE_UNKNOWN) {
Printf("GetFileType() failed for \"%s\" (Error code: %lu).\n", Path.c_str(),
GetLastError());
CloseHandle(FileHandle);
return false;
}
if (FileType != FILE_TYPE_DISK) {
CloseHandle(FileHandle);
return false;
}
CloseHandle(FileHandle);
return true;
}
bool IsFile(const std::string &Path) {
DWORD Att = GetFileAttributesA(Path.c_str());
if (Att == INVALID_FILE_ATTRIBUTES) {
Printf("GetFileAttributesA() failed for \"%s\" (Error code: %lu).\n",
Path.c_str(), GetLastError());
return false;
}
return IsFile(Path, Att);
}
void ListFilesInDirRecursive(const std::string &Dir, long *Epoch,
std::vector<std::string> *V, bool TopDir) {
auto E = GetEpoch(Dir);
if (Epoch)
if (E && *Epoch >= E) return;
std::string Path(Dir);
assert(!Path.empty());
if (Path.back() != '\\')
Path.push_back('\\');
Path.push_back('*');
// Get the first directory entry.
WIN32_FIND_DATAA FindInfo;
HANDLE FindHandle(FindFirstFileA(Path.c_str(), &FindInfo));
if (FindHandle == INVALID_HANDLE_VALUE)
{
Printf("No file found in: %s.\n", Dir.c_str());
return;
}
do {
std::string FileName = DirPlusFile(Dir, FindInfo.cFileName);
if (FindInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
size_t FilenameLen = strlen(FindInfo.cFileName);
if ((FilenameLen == 1 && FindInfo.cFileName[0] == '.') ||
(FilenameLen == 2 && FindInfo.cFileName[0] == '.' &&
FindInfo.cFileName[1] == '.'))
continue;
ListFilesInDirRecursive(FileName, Epoch, V, false);
}
else if (IsFile(FileName, FindInfo.dwFileAttributes))
V->push_back(FileName);
} while (FindNextFileA(FindHandle, &FindInfo));
DWORD LastError = GetLastError();
if (LastError != ERROR_NO_MORE_FILES)
Printf("FindNextFileA failed (Error code: %lu).\n", LastError);
FindClose(FindHandle);
if (Epoch && TopDir)
*Epoch = E;
}
char GetSeparator() {
return '\\';
}
FILE* OpenFile(int Fd, const char* Mode) {
return _fdopen(Fd, Mode);
}
int CloseFile(int Fd) {
return _close(Fd);
}
int DuplicateFile(int Fd) {
return _dup(Fd);
}
void DeleteFile(const std::string &Path) {
_unlink(Path.c_str());
}
std::string DirName(const std::string &FileName) {
assert(0 && "Unimplemented");
}
} // namespace fuzzer
#endif // LIBFUZZER_WINDOWS
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