text: /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to
   * deal in the Software without restriction, including without limitation the
   * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   * sell copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
   * IN THE SOFTWARE.
   */
  
  #include "uv.h"
  #include "task.h"
  
  #ifdef _WIN32
  # include <io.h>
  # include <windows.h>
  #else /*  Unix */
  # include <fcntl.h>
  # include <unistd.h>
  # if (defined(__linux__) || defined(__GLIBC__)) && !defined(__ANDROID__)
  #  include <pty.h>
  # elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
  #  include <util.h>
  # elif defined(__FreeBSD__) || defined(__DragonFly__)
  #  include <libutil.h>
  # endif
  #endif
  
  #include <string.h>
  #include <errno.h>
  
  
  TEST_IMPL(tty) {
    int r, width, height;
    int ttyin_fd, ttyout_fd;
    uv_tty_t tty_in, tty_out;
    uv_loop_t* loop = uv_default_loop();
  
    /* Make sure we have an FD that refers to a tty */
  #ifdef _WIN32
    HANDLE handle;
    handle = CreateFileA("conin$",
                         GENERIC_READ | GENERIC_WRITE,
                         FILE_SHARE_READ | FILE_SHARE_WRITE,
                         NULL,
                         OPEN_EXISTING,
                         FILE_ATTRIBUTE_NORMAL,
                         NULL);
    ASSERT(handle != INVALID_HANDLE_VALUE);
    ttyin_fd = _open_osfhandle((intptr_t) handle, 0);
  
    handle = CreateFileA("conout$",
                         GENERIC_READ | GENERIC_WRITE,
                         FILE_SHARE_READ | FILE_SHARE_WRITE,
                         NULL,
                         OPEN_EXISTING,
                         FILE_ATTRIBUTE_NORMAL,
                         NULL);
    ASSERT(handle != INVALID_HANDLE_VALUE);
    ttyout_fd = _open_osfhandle((intptr_t) handle, 0);
  
  #else /* unix */
    ttyin_fd = open("/dev/tty", O_RDONLY, 0);
    if (ttyin_fd < 0) {
      fprintf(stderr, "Cannot open /dev/tty as read-only: %s\n", strerror(errno));
      fflush(stderr);
      return TEST_SKIP;
    }
  
    ttyout_fd = open("/dev/tty", O_WRONLY, 0);
    if (ttyout_fd < 0) {
      fprintf(stderr, "Cannot open /dev/tty as write-only: %s\n", strerror(errno));
      fflush(stderr);
      return TEST_SKIP;
    }
  #endif
  
    ASSERT(ttyin_fd >= 0);
    ASSERT(ttyout_fd >= 0);
  
    ASSERT(UV_UNKNOWN_HANDLE == uv_guess_handle(-1));
  
    ASSERT(UV_TTY == uv_guess_handle(ttyin_fd));
    ASSERT(UV_TTY == uv_guess_handle(ttyout_fd));
  
    r = uv_tty_init(uv_default_loop(), &tty_in, ttyin_fd, 1);  /* Readable. */
    ASSERT(r == 0);
  
    r = uv_tty_init(uv_default_loop(), &tty_out, ttyout_fd, 0);  /* Writable. */
    ASSERT(r == 0);
  
    r = uv_tty_get_winsize(&tty_out, &width, &height);
    ASSERT(r == 0);
  
    printf("width=%d height=%d\n", width, height);
  
    if (width == 0 && height == 0) {
     /* Some environments such as containers or Jenkins behave like this
      * sometimes */
      MAKE_VALGRIND_HAPPY();
      return TEST_SKIP;
    }
  
    /*
     * Is it a safe assumption that most people have terminals larger than
     * 10x10?
     */
    ASSERT(width > 10);
    ASSERT(height > 10);
  
    /* Turn on raw mode. */
    r = uv_tty_set_mode(&tty_in, UV_TTY_MODE_RAW);
    ASSERT(r == 0);
  
    /* Turn off raw mode. */
    r = uv_tty_set_mode(&tty_in, UV_TTY_MODE_NORMAL);
    ASSERT(r == 0);
  
    /* Calling uv_tty_reset_mode() repeatedly should not clobber errno. */
    errno = 0;
    ASSERT(0 == uv_tty_reset_mode());
    ASSERT(0 == uv_tty_reset_mode());
    ASSERT(0 == uv_tty_reset_mode());
    ASSERT(0 == errno);
  
    /* TODO check the actual mode! */
  
    uv_close((uv_handle_t*) &tty_in, NULL);
    uv_close((uv_handle_t*) &tty_out, NULL);
  
    uv_run(loop, UV_RUN_DEFAULT);
  
    MAKE_VALGRIND_HAPPY();
    return 0;
  }
  
  
  #ifdef _WIN32
  static void tty_raw_alloc(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
    buf->base = malloc(size);
    buf->len = size;
  }
  
  static void tty_raw_read(uv_stream_t* tty_in, ssize_t nread, const uv_buf_t* buf) {
    if (nread > 0) {
      ASSERT(nread  == 1);
      ASSERT(buf->base[0] == ' ');
      uv_close((uv_handle_t*) tty_in, NULL);
    } else {
      ASSERT(nread == 0);
    }
  }
  
  TEST_IMPL(tty_raw) {
    int r;
    int ttyin_fd;
    uv_tty_t tty_in;
    uv_loop_t* loop = uv_default_loop();
    HANDLE handle;
    INPUT_RECORD record;
    DWORD written;
  
    /* Make sure we have an FD that refers to a tty */
    handle = CreateFileA("conin$",
                         GENERIC_READ | GENERIC_WRITE,
                         FILE_SHARE_READ | FILE_SHARE_WRITE,
                         NULL,
                         OPEN_EXISTING,
                         FILE_ATTRIBUTE_NORMAL,
                         NULL);
    ASSERT(handle != INVALID_HANDLE_VALUE);
    ttyin_fd = _open_osfhandle((intptr_t) handle, 0);
    ASSERT(ttyin_fd >= 0);
    ASSERT(UV_TTY == uv_guess_handle(ttyin_fd));
  
    r = uv_tty_init(uv_default_loop(), &tty_in, ttyin_fd, 1);  /* Readable. */
    ASSERT(r == 0);
  
    r = uv_read_start((uv_stream_t*)&tty_in, tty_raw_alloc, tty_raw_read);
    ASSERT(r == 0);
  
    /* Give uv_tty_line_read_thread time to block on ReadConsoleW */
    Sleep(100);
  
    /* Turn on raw mode. */
    r = uv_tty_set_mode(&tty_in, UV_TTY_MODE_RAW);
    ASSERT(r == 0);
  
    /* Write ' ' that should be read in raw mode */
    record.EventType = KEY_EVENT;
    record.Event.KeyEvent.bKeyDown = TRUE;
    record.Event.KeyEvent.wRepeatCount = 1;
    record.Event.KeyEvent.wVirtualKeyCode = VK_SPACE;
    record.Event.KeyEvent.wVirtualScanCode = MapVirtualKeyW(VK_SPACE, MAPVK_VK_TO_VSC);
    record.Event.KeyEvent.uChar.UnicodeChar = L' ';
    record.Event.KeyEvent.dwControlKeyState = 0;
    WriteConsoleInputW(handle, &record, 1, &written);
  
    uv_run(loop, UV_RUN_DEFAULT);
  
    MAKE_VALGRIND_HAPPY();
    return 0;
  }
  
  TEST_IMPL(tty_empty_write) {
    int r;
    int ttyout_fd;
    uv_tty_t tty_out;
    char dummy[1];
    uv_buf_t bufs[1];
    uv_loop_t* loop;
  
    /* Make sure we have an FD that refers to a tty */
    HANDLE handle;
  
    loop = uv_default_loop();
  
    handle = CreateFileA("conout$",
                         GENERIC_READ | GENERIC_WRITE,
                         FILE_SHARE_READ | FILE_SHARE_WRITE,
                         NULL,
                         OPEN_EXISTING,
                         FILE_ATTRIBUTE_NORMAL,
                         NULL);
    ASSERT(handle != INVALID_HANDLE_VALUE);
    ttyout_fd = _open_osfhandle((intptr_t) handle, 0);
  
    ASSERT(ttyout_fd >= 0);
  
    ASSERT(UV_TTY == uv_guess_handle(ttyout_fd));
  
    r = uv_tty_init(uv_default_loop(), &tty_out, ttyout_fd, 0);  /* Writable. */
    ASSERT(r == 0);
  
    bufs[0].len = 0;
    bufs[0].base = &dummy;
  
    r = uv_try_write((uv_stream_t*) &tty_out, bufs, 1);
    ASSERT(r == 0);
  
    uv_close((uv_handle_t*) &tty_out, NULL);
  
    uv_run(loop, UV_RUN_DEFAULT);
  
    MAKE_VALGRIND_HAPPY();
    return 0;
  }
  
  TEST_IMPL(tty_large_write) {
    int r;
    int ttyout_fd;
    uv_tty_t tty_out;
    char dummy[10000];
    uv_buf_t bufs[1];
    uv_loop_t* loop;
  
    /* Make sure we have an FD that refers to a tty */
    HANDLE handle;
  
    loop = uv_default_loop();
  
    handle = CreateFileA("conout$",
                         GENERIC_READ | GENERIC_WRITE,
                         FILE_SHARE_READ | FILE_SHARE_WRITE,
                         NULL,
                         OPEN_EXISTING,
                         FILE_ATTRIBUTE_NORMAL,
                         NULL);
    ASSERT(handle != INVALID_HANDLE_VALUE);
    ttyout_fd = _open_osfhandle((intptr_t) handle, 0);
  
    ASSERT(ttyout_fd >= 0);
  
    ASSERT(UV_TTY == uv_guess_handle(ttyout_fd));
  
    r = uv_tty_init(uv_default_loop(), &tty_out, ttyout_fd, 0);  /* Writable. */
    ASSERT(r == 0);
  
    bufs[0] = uv_buf_init(dummy, sizeof(dummy));
  
    r = uv_try_write((uv_stream_t*) &tty_out, bufs, 1);
    ASSERT(r == 10000);
  
    uv_close((uv_handle_t*) &tty_out, NULL);
  
    uv_run(loop, UV_RUN_DEFAULT);
  
    MAKE_VALGRIND_HAPPY();
    return 0;
  }
  #endif
  
  
  TEST_IMPL(tty_file) {
  #ifndef _WIN32
    uv_loop_t loop;
    uv_tty_t tty;
    int fd;
  
    ASSERT(0 == uv_loop_init(&loop));
  
    fd = open("test/fixtures/empty_file", O_RDONLY);
    if (fd != -1) {
      ASSERT(UV_EINVAL == uv_tty_init(&loop, &tty, fd, 1));
      ASSERT(0 == close(fd));
    }
  
  /* Bug on AIX where '/dev/random' returns 1 from isatty() */
  #ifndef _AIX
    fd = open("/dev/random", O_RDONLY);
    if (fd != -1) {
      ASSERT(UV_EINVAL == uv_tty_init(&loop, &tty, fd, 1));
      ASSERT(0 == close(fd));
    }
  #endif /* _AIX */
  
    fd = open("/dev/zero", O_RDONLY);
    if (fd != -1) {
      ASSERT(UV_EINVAL == uv_tty_init(&loop, &tty, fd, 1));
      ASSERT(0 == close(fd));
    }
  
    fd = open("/dev/tty", O_RDONLY);
    if (fd != -1) {
      ASSERT(0 == uv_tty_init(&loop, &tty, fd, 1));
      ASSERT(0 == close(fd));
      uv_close((uv_handle_t*) &tty, NULL);
    }
  
    ASSERT(0 == uv_run(&loop, UV_RUN_DEFAULT));
    ASSERT(0 == uv_loop_close(&loop));
  
    MAKE_VALGRIND_HAPPY();
  #endif
    return 0;
  }
  
  TEST_IMPL(tty_pty) {
  #if defined(__APPLE__)                            || \
      defined(__DragonFly__)                        || \
      defined(__FreeBSD__)                          || \
      defined(__FreeBSD_kernel__)                   || \
      (defined(__linux__) && !defined(__ANDROID__)) || \
      defined(__NetBSD__)                           || \
      defined(__OpenBSD__)
    int master_fd, slave_fd, r;
    struct winsize w;
    uv_loop_t loop;
    uv_tty_t master_tty, slave_tty;
  
    ASSERT(0 == uv_loop_init(&loop));
  
    r = openpty(&master_fd, &slave_fd, NULL, NULL, &w);
    if (r != 0)
      RETURN_SKIP("No pty available, skipping.");
  
    ASSERT(0 == uv_tty_init(&loop, &slave_tty, slave_fd, 0));
    ASSERT(0 == uv_tty_init(&loop, &master_tty, master_fd, 0));
    /* Check if the file descriptor was reopened. If it is,
     * UV_STREAM_BLOCKING (value 0x80) isn't set on flags.
     */
    ASSERT(0 == (slave_tty.flags & 0x80));
    /* The master_fd of a pty should never be reopened.
     */
    ASSERT(master_tty.flags & 0x80);
    ASSERT(0 == close(slave_fd));
    uv_close((uv_handle_t*) &slave_tty, NULL);
    ASSERT(0 == close(master_fd));
    uv_close((uv_handle_t*) &master_tty, NULL);
  
    ASSERT(0 == uv_run(&loop, UV_RUN_DEFAULT));
  
    MAKE_VALGRIND_HAPPY();
  #endif
    return 0;
  }
  