// Copyright 2017 The Emscripten Authors. All rights reserved.

// Emscripten is available under two separate licenses, the MIT license and the

// University of Illinois/NCSA Open Source License. Both these licenses can be

// found in the LICENSE file.

#include <fstream>

#include <cassert>

#include <dirent.h>

#include <sys/stat.h>

#include <fcntl.h>

void touch(const std::string& fileName)

{

std::ofstream f(fileName, std::ios_base::out);

assert(f.good());

}

void doTest(const std::string& uniqueDirName, const std::string& fileName)

{

printf("test in %s: %s\n", uniqueDirName.c_str(), fileName.c_str());

auto ret = mkdir(uniqueDirName.c_str(), 0777);

assert(ret == 0);

touch(uniqueDirName + "/" + fileName);

auto fd = open(uniqueDirName.c_str(), O_RDONLY | O_DIRECTORY);

assert(fd > 0);

for (;;)

{

dirent d;

auto nread = getdents(fd, &d, sizeof(d));

assert(nread != -1);

if (nread == 0)

{

break;

}

if (strcmp(d.d_name, ".") == 0 || strcmp(d.d_name, "..") == 0)

{

continue;

}

printf("d.d_name = %s\n", d.d_name);

// If it needed to be, the name was truncated.

assert(strlen(d.d_name) <= 255);

}

}

int main()

{

// Non-ascii file name.

doTest("test_dir", u8"абвгд");

#ifndef WASMFS // The JS FS truncates filenames automatically, which is incorrect. Wasmfs and Linux do not.

// File name exceeds the limit of 255 chars and is truncated.

doTest("test_dir2", std::string(300, '1'));

#endif

}