[NODERAWFS] Revert #18163 (#22393)

This reverts commit c614fa5.

---

Here's a standalone reproducer:

Before:
```console
$ curl -LO https://github.com/llvm/llvm-test-suite/raw/main/SingleSource/Benchmarks/Misc-C++/Large/ray.cpp
$ em++ -O3 -sEXIT_RUNTIME -sNODERAWFS ray.cpp -o ray.js
$ node ray.js > x.ppm
$ sha256sum x.ppm
acaa1db08ee30dafda03b41c77466b1435fe8ffdd4d88e5a5876e87dff126f58  x.ppm
$ vips copy x.ppm x.png
VipsImage: memory area too small --- should be 262144 bytes, you passed 79485
```

After:
```console
$ em++ -O3 -sEXIT_RUNTIME -sNODERAWFS ray.cpp -o ray.js
$ node ray.js > x.ppm
$ sha256sum x.ppm
cd6fa6fa75b4ba29077f7e4e531b96f17ff0b82f3c70df526c36f748d6a38c5c  x.ppm
$ vips copy x.ppm x.png
```
<details>
  <summary>x.png</summary>


![x](https://github.com/user-attachments/assets/832af0bc-17af-4919-9c3c-72f0683079b8)
</details>

src/library_fs.js

@@ -150,8 +150,8 @@ FS.staticInit();
         this.node_ops = {};
         this.stream_ops = {};
         this.rdev = rdev;
-        this.readMode = 292/*{{{ cDefs.S_IRUGO }}}*/ | 73/*{{{ cDefs.S_IXUGO }}}*/;
-        this.writeMode = 146/*{{{ cDefs.S_IWUGO }}}*/;
+        this.readMode = {{{ cDefs.S_IRUGO }}} | {{{ cDefs.S_IXUGO }}};
+        this.writeMode = {{{ cDefs.S_IWUGO }}};
       }
       get read() {
         return (this.mode & this.readMode) === this.readMode;

src/library_noderawfs.js

@@ -15,11 +15,7 @@ addToLibrary({
     // Override the init function with our own
     FS.init = NODERAWFS.init;`,
   $NODERAWFS: {
-    init(input, output, error) {
-      // Call the original FS.init, this will setup the
-      // stdin, stdout and stderr devices
-      VFS.init(input, output, error);
-
+    init() {
       var _wrapNodeError = function(func) {
         return function(...args) {
           try {
@@ -39,6 +35,9 @@ addToLibrary({
         /** @suppress {partialAlias} */
         FS[_key] = _wrapNodeError(NODERAWFS[_key]);
       }
+
+      // Setup the stdin, stdout and stderr devices
+      FS.createStandardStreams();
     },
     lookup(parent, name) {
 #if ASSERTIONS
@@ -55,6 +54,13 @@ addToLibrary({
       var mode = NODEFS.getMode(path);
       return { path, node: { id: st.ino, mode, node_ops: NODERAWFS, path }};
     },
+    createStandardStreams() {
+      // FIXME: tty is set to true to appease isatty(), the underlying ioctl syscalls still needs to be implemented, see issue #22264.
+      FS.createStream({ nfd: 0, position: 0, path: '', flags: 0, tty: true, seekable: false }, 0);
+      for (var i = 1; i < 3; i++) {
+        FS.createStream({ nfd: i, position: 0, path: '', flags: {{{ cDefs.O_TRUNC | cDefs.O_CREAT | cDefs.O_WRONLY }}}, tty: true, seekable: false }, i);
+      }
+    },
     // generic function for all node creation
     cwd() { return process.cwd(); },
     chdir(...args) { process.chdir(...args); },

test/other/test_fflush_fs_exit.out

@@ -1,2 +1,2 @@
 Hey1
-Hey2
+Hey2

test/test_other.py

@@ -1675,7 +1675,6 @@ def test_stdin(self, args):
         os.system(f'cat in.txt | {cmd} > out.txt')
       self.assertContained('abcdef\nghijkl\neof', read_file('out.txt'))
 
-  @also_with_noderawfs
   @crossplatform
   def test_module_stdin(self):
     self.set_setting('FORCE_FILESYSTEM')
@@ -1687,18 +1686,36 @@ def test_module_stdin(self):
     self.emcc_args += ['--pre-js', 'pre.js']
     self.do_runf('module/test_stdin.c', 'hello, world!')
 
-  @also_with_noderawfs
   @crossplatform
   def test_module_stdout_stderr(self):
     self.set_setting('FORCE_FILESYSTEM')
     create_file('pre.js', '''
+let stdout = [];
+let stderr = [];
+
+Module['stdout'] = (char) => stdout.push(char);
+Module['stderr'] = (char) => stderr.push(char);
+Module['postRun'] = () => {
+    assert(stderr.length === 0, 'stderr should be empty. \\n' +
+        'stderr: \\n' + stderr);
+    assert(UTF8ArrayToString(stdout, 0).startsWith('hello, world!'), 'stdout should start with the famous greeting. \\n' +
+        'stdout: \\n' + stdout);
+}
+''')
+    self.emcc_args += ['--pre-js', 'pre.js']
+    self.do_runf('hello_world.c')
+
+  @crossplatform
+  def test_module_print_printerr(self):
+    self.set_setting('FORCE_FILESYSTEM')
+    create_file('pre.js', '''
 let stdout = '';
 let stderr = '';
 
 Module['print'] = (text) => stdout += text;
 Module['printErr'] = (text) => stderr += text;
 Module['postRun'] = () => {
-    assert(stderr == '', 'stderr should be empty. \\n' +
+    assert(stderr === '', 'stderr should be empty. \\n' +
         'stderr: \\n' + stderr);
     assert(stdout.startsWith('hello, world!'), 'stdout should start with the famous greeting. \\n' +
         'stdout: \\n' + stdout);
@@ -9716,7 +9733,7 @@ def test_ioctl(self):
     # ioctl requires filesystem
     self.do_other_test('test_ioctl.c', emcc_args=['-sFORCE_FILESYSTEM'])
 
-  @also_with_noderawfs
+  # @also_with_noderawfs # NODERAWFS needs to implement the ioctl syscalls, see issue #22264.
   def test_ioctl_termios(self):
     # ioctl requires filesystem
     self.do_other_test('test_ioctl_termios.c', emcc_args=['-sFORCE_FILESYSTEM'])
@@ -9733,6 +9750,7 @@ def test_fflush_fs(self):
     # fflush with the full filesystem will flush from libc, but not the JS logging, which awaits a newline
     self.do_other_test('test_fflush_fs.cpp', emcc_args=['-sFORCE_FILESYSTEM'])
 
+  @also_with_noderawfs
   def test_fflush_fs_exit(self):
     # on exit, we can send out a newline as no more code will run
     self.do_other_test('test_fflush_fs_exit.cpp', emcc_args=['-sFORCE_FILESYSTEM', '-sEXIT_RUNTIME'])