buffer: introduce latin1 encoding term

When node began using the OneByte API (f150d56) it also switched to
officially supporting ISO-8859-1. Though at the time no new encoding
string was introduced.

Introduce the new encoding string 'latin1' to be more explicit. The
previous 'binary' and documented as an alias to 'latin1'.  While many
tests have switched to use 'latin1', there are still plenty that do both
'binary' and 'latin1' checks side-by-side to ensure there is no
regression.

PR-URL: https://github.com/nodejs/node/pull/7111
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/api/buffer.md

@@ -165,12 +165,22 @@ The character encodings currently supported by Node.js include:
   this encoding will also correctly accept "URL and Filename Safe Alphabet" as
   specified in [RFC 4648, Section 5].
 
-* `'binary'` - A way of encoding the buffer into a one-byte (`latin-1`)
-  encoded string. The string `'latin-1'` is not supported. Instead, pass
-  `'binary'` to use `'latin-1'` encoding.
+* `'latin1'` - A way of encoding the buffer into a one-byte encoded string
+  (as defined by the IANA in [RFC1345](https://tools.ietf.org/html/rfc1345),
+  page 63, to be the Latin-1 supplement block and C0/C1 control codes).
+
+* `'binary'` - (deprecated) A way of encoding the buffer into a one-byte
+  (`latin1`) encoded string.
 
 * `'hex'` - Encode each byte as two hexadecimal characters.
 
+_Note_: Today's browsers follow the [WHATWG
+spec](https://encoding.spec.whatwg.org/) that aliases both `latin1` and
+`iso-8859-1` to `win-1252`. Meaning, while doing something like `http.get()`,
+if the returned charset is one of those listed in the WHATWG spec it's possible
+that the server actually returned `win-1252` encoded data, and using `latin1`
+encoding may incorrectly decode the graphical characters.
+
 ## Buffers and TypedArray
 
 Buffers are also `Uint8Array` TypedArray instances. However, there are subtle

doc/api/crypto.md

@@ -160,7 +160,7 @@ console.log(encrypted);
 ### cipher.final([output_encoding])
 
 Returns any remaining enciphered contents. If `output_encoding`
-parameter is one of `'binary'`, `'base64'` or `'hex'`, a string is returned.
+parameter is one of `'latin1'`, `'base64'` or `'hex'`, a string is returned.
 If an `output_encoding` is not provided, a [`Buffer`][] is returned.
 
 Once the `cipher.final()` method has been called, the `Cipher` object can no
@@ -198,13 +198,13 @@ The `cipher.setAutoPadding()` method must be called before [`cipher.final()`][].
 ### cipher.update(data[, input_encoding][, output_encoding])
 
 Updates the cipher with `data`. If the `input_encoding` argument is given,
-it's value must be one of `'utf8'`, `'ascii'`, or `'binary'` and the `data`
+it's value must be one of `'utf8'`, `'ascii'`, or `'latin1'` and the `data`
 argument is a string using the specified encoding. If the `input_encoding`
 argument is not given, `data` must be a [`Buffer`][]. If `data` is a
 [`Buffer`][] then `input_encoding` is ignored.
 
 The `output_encoding` specifies the output format of the enciphered
-data, and can be `'binary'`, `'base64'` or `'hex'`. If the `output_encoding`
+data, and can be `'latin1'`, `'base64'` or `'hex'`. If the `output_encoding`
 is specified, a string using the specified encoding is returned. If no
 `output_encoding` is provided, a [`Buffer`][] is returned.
 
@@ -277,7 +277,7 @@ console.log(decrypted);
 ### decipher.final([output_encoding])
 
 Returns any remaining deciphered contents. If `output_encoding`
-parameter is one of `'binary'`, `'base64'` or `'hex'`, a string is returned.
+parameter is one of `'latin1'`, `'base64'` or `'hex'`, a string is returned.
 If an `output_encoding` is not provided, a [`Buffer`][] is returned.
 
 Once the `decipher.final()` method has been called, the `Decipher` object can
@@ -313,13 +313,13 @@ The `decipher.setAutoPadding()` method must be called before
 ### decipher.update(data[, input_encoding][, output_encoding])
 
 Updates the decipher with `data`. If the `input_encoding` argument is given,
-it's value must be one of `'binary'`, `'base64'`, or `'hex'` and the `data`
+it's value must be one of `'latin1'`, `'base64'`, or `'hex'` and the `data`
 argument is a string using the specified encoding. If the `input_encoding`
 argument is not given, `data` must be a [`Buffer`][]. If `data` is a
 [`Buffer`][] then `input_encoding` is ignored.
 
 The `output_encoding` specifies the output format of the enciphered
-data, and can be `'binary'`, `'ascii'` or `'utf8'`. If the `output_encoding`
+data, and can be `'latin1'`, `'ascii'` or `'utf8'`. If the `output_encoding`
 is specified, a string using the specified encoding is returned. If no
 `output_encoding` is provided, a [`Buffer`][] is returned.
 
@@ -361,7 +361,7 @@ Computes the shared secret using `other_public_key` as the other
 party's public key and returns the computed shared secret. The supplied
 key is interpreted using the specified `input_encoding`, and secret is
 encoded using specified `output_encoding`. Encodings can be
-`'binary'`, `'hex'`, or `'base64'`. If the `input_encoding` is not
+`'latin1'`, `'hex'`, or `'base64'`. If the `input_encoding` is not
 provided, `other_public_key` is expected to be a [`Buffer`][].
 
 If `output_encoding` is given a string is returned; otherwise, a
@@ -371,45 +371,45 @@ If `output_encoding` is given a string is returned; otherwise, a
 
 Generates private and public Diffie-Hellman key values, and returns
 the public key in the specified `encoding`. This key should be
-transferred to the other party. Encoding can be `'binary'`, `'hex'`,
+transferred to the other party. Encoding can be `'latin1'`, `'hex'`,
 or `'base64'`. If `encoding` is provided a string is returned; otherwise a
 [`Buffer`][] is returned.
 
 ### diffieHellman.getGenerator([encoding])
 
 Returns the Diffie-Hellman generator in the specified `encoding`, which can
-be `'binary'`, `'hex'`, or `'base64'`. If  `encoding` is provided a string is
+be `'latin1'`, `'hex'`, or `'base64'`. If  `encoding` is provided a string is
 returned; otherwise a [`Buffer`][] is returned.
 
 ### diffieHellman.getPrime([encoding])
 
 Returns the Diffie-Hellman prime in the specified `encoding`, which can
-be `'binary'`, `'hex'`, or `'base64'`. If `encoding` is provided a string is
+be `'latin1'`, `'hex'`, or `'base64'`. If `encoding` is provided a string is
 returned; otherwise a [`Buffer`][] is returned.
 
 ### diffieHellman.getPrivateKey([encoding])
 
 Returns the Diffie-Hellman private key in the specified `encoding`,
-which can be `'binary'`, `'hex'`, or `'base64'`. If `encoding` is provided a
+which can be `'latin1'`, `'hex'`, or `'base64'`. If `encoding` is provided a
 string is returned; otherwise a [`Buffer`][] is returned.
 
 ### diffieHellman.getPublicKey([encoding])
 
 Returns the Diffie-Hellman public key in the specified `encoding`, which
-can be `'binary'`, `'hex'`, or `'base64'`. If `encoding` is provided a
+can be `'latin1'`, `'hex'`, or `'base64'`. If `encoding` is provided a
 string is returned; otherwise a [`Buffer`][] is returned.
 
 ### diffieHellman.setPrivateKey(private_key[, encoding])
 
 Sets the Diffie-Hellman private key. If the `encoding` argument is provided
-and is either `'binary'`, `'hex'`, or `'base64'`, `private_key` is expected
+and is either `'latin1'`, `'hex'`, or `'base64'`, `private_key` is expected
 to be a string. If no `encoding` is provided, `private_key` is expected
 to be a [`Buffer`][].
 
 ### diffieHellman.setPublicKey(public_key[, encoding])
 
 Sets the Diffie-Hellman public key. If the `encoding` argument is provided
-and is either `'binary'`, `'hex'` or `'base64'`, `public_key` is expected
+and is either `'latin1'`, `'hex'` or `'base64'`, `public_key` is expected
 to be a string. If no `encoding` is provided, `public_key` is expected
 to be a [`Buffer`][].
 
@@ -460,7 +460,7 @@ Computes the shared secret using `other_public_key` as the other
 party's public key and returns the computed shared secret. The supplied
 key is interpreted using specified `input_encoding`, and the returned secret
 is encoded using the specified `output_encoding`. Encodings can be
-`'binary'`, `'hex'`, or `'base64'`. If the `input_encoding` is not
+`'latin1'`, `'hex'`, or `'base64'`. If the `input_encoding` is not
 provided, `other_public_key` is expected to be a [`Buffer`][].
 
 If `output_encoding` is given a string will be returned; otherwise a
@@ -476,14 +476,14 @@ The `format` arguments specifies point encoding and can be `'compressed'`,
 `'uncompressed'`, or `'hybrid'`. If `format` is not specified, the point will
 be returned in `'uncompressed'` format.
 
-The `encoding` argument can be `'binary'`, `'hex'`, or `'base64'`. If
+The `encoding` argument can be `'latin1'`, `'hex'`, or `'base64'`. If
 `encoding` is provided a string is returned; otherwise a [`Buffer`][]
 is returned.
 
 ### ecdh.getPrivateKey([encoding])
 
 Returns the EC Diffie-Hellman private key in the specified `encoding`,
-which can be `'binary'`, `'hex'`, or `'base64'`. If `encoding` is provided
+which can be `'latin1'`, `'hex'`, or `'base64'`. If `encoding` is provided
 a string is returned; otherwise a [`Buffer`][] is returned.
 
 ### ecdh.getPublicKey([encoding[, format]])
@@ -495,13 +495,13 @@ The `format` argument specifies point encoding and can be `'compressed'`,
 `'uncompressed'`, or `'hybrid'`. If `format` is not specified the point will be
 returned in `'uncompressed'` format.
 
-The `encoding` argument can be `'binary'`, `'hex'`, or `'base64'`. If
+The `encoding` argument can be `'latin1'`, `'hex'`, or `'base64'`. If
 `encoding` is specified, a string is returned; otherwise a [`Buffer`][] is
 returned.
 
 ### ecdh.setPrivateKey(private_key[, encoding])
 
-Sets the EC Diffie-Hellman private key. The `encoding` can be `'binary'`,
+Sets the EC Diffie-Hellman private key. The `encoding` can be `'latin1'`,
 `'hex'` or `'base64'`. If `encoding` is provided, `private_key` is expected
 to be a string; otherwise `private_key` is expected to be a [`Buffer`][]. If
 `private_key` is not valid for the curve specified when the `ECDH` object was
@@ -512,7 +512,7 @@ public point (key) is also generated and set in the ECDH object.
 
     Stability: 0 - Deprecated
 
-Sets the EC Diffie-Hellman public key. Key encoding can be `'binary'`,
+Sets the EC Diffie-Hellman public key. Key encoding can be `'latin1'`,
 `'hex'` or `'base64'`. If `encoding` is provided `public_key` is expected to
 be a string; otherwise a [`Buffer`][] is expected.
 
@@ -604,7 +604,7 @@ console.log(hash.digest('hex'));
 ### hash.digest([encoding])
 
 Calculates the digest of all of the data passed to be hashed (using the
-[`hash.update()`][] method). The `encoding` can be `'hex'`, `'binary'` or
+[`hash.update()`][] method). The `encoding` can be `'hex'`, `'latin1'` or
 `'base64'`. If `encoding` is provided a string will be returned; otherwise
 a [`Buffer`][] is returned.
 
@@ -615,7 +615,7 @@ called. Multiple calls will cause an error to be thrown.
 
 Updates the hash content with the given `data`, the encoding of which
 is given in `input_encoding` and can be `'utf8'`, `'ascii'` or
-`'binary'`. If `encoding` is not provided, and the `data` is a string, an
+`'latin1'`. If `encoding` is not provided, and the `data` is a string, an
 encoding of `'utf8'` is enforced. If `data` is a [`Buffer`][] then
 `input_encoding` is ignored.
 
@@ -678,7 +678,7 @@ console.log(hmac.digest('hex'));
 ### hmac.digest([encoding])
 
 Calculates the HMAC digest of all of the data passed using [`hmac.update()`][].
-The `encoding` can be `'hex'`, `'binary'` or `'base64'`. If `encoding` is
+The `encoding` can be `'hex'`, `'latin1'` or `'base64'`. If `encoding` is
 provided a string is returned; otherwise a [`Buffer`][] is returned;
 
 The `Hmac` object can not be used again after `hmac.digest()` has been
@@ -688,7 +688,7 @@ called. Multiple calls to `hmac.digest()` will result in an error being thrown.
 
 Updates the `Hmac` content with the given `data`, the encoding of which
 is given in `input_encoding` and can be `'utf8'`, `'ascii'` or
-`'binary'`. If `encoding` is not provided, and the `data` is a string, an
+`'latin1'`. If `encoding` is not provided, and the `data` is a string, an
 encoding of `'utf8'` is enforced. If `data` is a [`Buffer`][] then
 `input_encoding` is ignored.
 
@@ -768,7 +768,7 @@ object, it is interpreted as a hash containing two properties:
 * `key` : {String} - PEM encoded private key
 * `passphrase` : {String} - passphrase for the private key
 
-The `output_format` can specify one of `'binary'`, `'hex'` or `'base64'`. If
+The `output_format` can specify one of `'latin1'`, `'hex'` or `'base64'`. If
 `output_format` is provided a string is returned; otherwise a [`Buffer`][] is
 returned.
 
@@ -779,7 +779,7 @@ called. Multiple calls to `sign.sign()` will result in an error being thrown.
 
 Updates the `Sign` content with the given `data`, the encoding of which
 is given in `input_encoding` and can be `'utf8'`, `'ascii'` or
-`'binary'`. If `encoding` is not provided, and the `data` is a string, an
+`'latin1'`. If `encoding` is not provided, and the `data` is a string, an
 encoding of `'utf8'` is enforced. If `data` is a [`Buffer`][] then
 `input_encoding` is ignored.
 
@@ -831,7 +831,7 @@ console.log(verify.verify(public_key, signature));
 
 Updates the `Verify` content with the given `data`, the encoding of which
 is given in `input_encoding` and can be `'utf8'`, `'ascii'` or
-`'binary'`. If `encoding` is not provided, and the `data` is a string, an
+`'latin1'`. If `encoding` is not provided, and the `data` is a string, an
 encoding of `'utf8'` is enforced. If `data` is a [`Buffer`][] then
 `input_encoding` is ignored.
 
@@ -843,7 +843,7 @@ Verifies the provided data using the given `object` and `signature`.
 The `object` argument is a string containing a PEM encoded object, which can be
 one an RSA public key, a DSA public key, or an X.509 certificate.
 The `signature` argument is the previously calculated signature for the data, in
-the `signature_format` which can be `'binary'`, `'hex'` or `'base64'`.
+the `signature_format` which can be `'latin1'`, `'hex'` or `'base64'`.
 If a `signature_format` is specified, the `signature` is expected to be a
 string; otherwise `signature` is expected to be a [`Buffer`][].
 
@@ -869,7 +869,7 @@ or [buffers][`Buffer`]. The default value is `'buffer'`, which makes methods
 default to [`Buffer`][] objects.
 
 The `crypto.DEFAULT_ENCODING` mechanism is provided for backwards compatibility
-with legacy programs that expect `'binary'` to be the default encoding.
+with legacy programs that expect `'latin1'` to be the default encoding.
 
 New applications should expect the default to be `'buffer'`. This property may
 become deprecated in a future Node.js release.
@@ -889,7 +889,7 @@ recent OpenSSL releases, `openssl list-cipher-algorithms` will display the
 available cipher algorithms.
 
 The `password` is used to derive the cipher key and initialization vector (IV).
-The value must be either a `'binary'` encoded string or a [`Buffer`][].
+The value must be either a `'latin1'` encoded string or a [`Buffer`][].
 
 The implementation of `crypto.createCipher()` derives keys using the OpenSSL
 function [`EVP_BytesToKey`][] with the digest algorithm set to MD5, one
@@ -913,7 +913,7 @@ recent OpenSSL releases, `openssl list-cipher-algorithms` will display the
 available cipher algorithms.
 
 The `key` is the raw key used by the `algorithm` and `iv` is an
-[initialization vector][]. Both arguments must be `'binary'` encoded strings or
+[initialization vector][]. Both arguments must be `'latin1'` encoded strings or
 [buffers][`Buffer`].
 
 ### crypto.createCredentials(details)
@@ -968,7 +968,7 @@ recent OpenSSL releases, `openssl list-cipher-algorithms` will display the
 available cipher algorithms.
 
 The `key` is the raw key used by the `algorithm` and `iv` is an
-[initialization vector][]. Both arguments must be `'binary'` encoded strings or
+[initialization vector][]. Both arguments must be `'latin1'` encoded strings or
 [buffers][`Buffer`].
 
 ### crypto.createDiffieHellman(prime[, prime_encoding][, generator][, generator_encoding])
@@ -979,7 +979,7 @@ optional specific `generator`.
 The `generator` argument can be a number, string, or [`Buffer`][]. If
 `generator` is not specified, the value `2` is used.
 
-The `prime_encoding` and `generator_encoding` arguments can be `'binary'`,
+The `prime_encoding` and `generator_encoding` arguments can be `'latin1'`,
 `'hex'`, or `'base64'`.
 
 If `prime_encoding` is specified, `prime` is expected to be a string; otherwise
@@ -1345,7 +1345,7 @@ unified Stream API, and before there were [`Buffer`][] objects for handling
 binary data. As such, the many of the `crypto` defined classes have methods not
 typically found on other Node.js classes that implement the [streams][stream]
 API (e.g. `update()`, `final()`, or `digest()`). Also, many methods accepted
-and returned `'binary'` encoded strings by default rather than Buffers. This
+and returned `'latin1'` encoded strings by default rather than Buffers. This
 default was changed after Node.js v0.8 to use [`Buffer`][] objects by default
 instead.
 

lib/_http_outgoing.js

@@ -130,7 +130,7 @@ OutgoingMessage.prototype._send = function(data, encoding, callback) {
       data = this._header + data;
     } else {
       this.output.unshift(this._header);
-      this.outputEncodings.unshift('binary');
+      this.outputEncodings.unshift('latin1');
       this.outputCallbacks.unshift(null);
       this.outputSize += this._header.length;
       if (typeof this._onPendingData === 'function')
@@ -453,7 +453,7 @@ OutgoingMessage.prototype.write = function(chunk, encoding, callback) {
     if (typeof chunk === 'string' &&
         encoding !== 'hex' &&
         encoding !== 'base64' &&
-        encoding !== 'binary') {
+        encoding !== 'latin1') {
       len = Buffer.byteLength(chunk, encoding);
       chunk = len.toString(16) + CRLF + chunk + CRLF;
       ret = this._send(chunk, encoding, callback);
@@ -468,7 +468,7 @@ OutgoingMessage.prototype.write = function(chunk, encoding, callback) {
         this.connection.cork();
         process.nextTick(connectionCorkNT, this.connection);
       }
-      this._send(len.toString(16), 'binary', null);
+      this._send(len.toString(16), 'latin1', null);
       this._send(crlf_buf, null, null);
       this._send(chunk, encoding, null);
       ret = this._send(crlf_buf, null, callback);
@@ -582,10 +582,10 @@ OutgoingMessage.prototype.end = function(data, encoding, callback) {
   }
 
   if (this._hasBody && this.chunkedEncoding) {
-    ret = this._send('0\r\n' + this._trailer + '\r\n', 'binary', finish);
+    ret = this._send('0\r\n' + this._trailer + '\r\n', 'latin1', finish);
   } else {
     // Force a flush, HACK.
-    ret = this._send('', 'binary', finish);
+    ret = this._send('', 'latin1', finish);
   }
 
   if (this.connection && data)

lib/_tls_wrap.js

@@ -608,7 +608,7 @@ TLSSocket.prototype.setServername = function(name) {
 
 TLSSocket.prototype.setSession = function(session) {
   if (typeof session === 'string')
-    session = Buffer.from(session, 'binary');
+    session = Buffer.from(session, 'latin1');
   this._handle.setSession(session);
 };
 

lib/buffer.js

@@ -331,6 +331,7 @@ Buffer.isEncoding = function(encoding) {
       case 'utf8':
       case 'utf-8':
       case 'ascii':
+      case 'latin1':
       case 'binary':
       case 'base64':
       case 'ucs2':
@@ -408,6 +409,7 @@ function byteLength(string, encoding) {
   for (;;) {
     switch (encoding) {
       case 'ascii':
+      case 'latin1':
       case 'binary':
         return len;
 
@@ -509,8 +511,9 @@ function slowToString(encoding, start, end) {
       case 'ascii':
         return this.asciiSlice(start, end);
 
+      case 'latin1':
       case 'binary':
-        return this.binarySlice(start, end);
+        return this.latin1Slice(start, end);
 
       case 'base64':
         return this.base64Slice(start, end);
@@ -658,6 +661,7 @@ function slowIndexOf(buffer, val, byteOffset, encoding, dir) {
       case 'ucs-2':
       case 'utf16le':
       case 'utf-16le':
+      case 'latin1':
       case 'binary':
         return binding.indexOfString(buffer, val, byteOffset, encoding, dir);
 
@@ -801,8 +805,9 @@ Buffer.prototype.write = function(string, offset, length, encoding) {
       case 'ascii':
         return this.asciiWrite(string, offset, length);
 
+      case 'latin1':
       case 'binary':
-        return this.binaryWrite(string, offset, length);
+        return this.latin1Write(string, offset, length);
 
       case 'base64':
         // Warning: maxLength not taken into account in base64Write

lib/internal/streams/lazy_transform.js

@@ -22,7 +22,7 @@ util.inherits(LazyTransform, stream.Transform);
     get: function() {
       stream.Transform.call(this, this._options);
       this._writableState.decodeStrings = false;
-      this._writableState.defaultEncoding = 'binary';
+      this._writableState.defaultEncoding = 'latin1';
       return this[prop];
     },
     set: function(val) {

lib/net.js

@@ -726,8 +726,9 @@ Socket.prototype._write = function(data, encoding, cb) {
 
 function createWriteReq(req, handle, data, encoding) {
   switch (encoding) {
+    case 'latin1':
     case 'binary':
-      return handle.writeBinaryString(req, data);
+      return handle.writeLatin1String(req, data);
 
     case 'buffer':
       return handle.writeBuffer(req, data);

lib/string_decoder.js

@@ -19,6 +19,7 @@ function normalizeEncoding(enc) {
         return 'utf16le';
       case 'base64':
       case 'ascii':
+      case 'latin1':
       case 'binary':
       case 'hex':
         return enc;
@@ -225,7 +226,7 @@ function base64End(buf) {
   return r;
 }
 
-// Pass bytes on through for single-byte encodings (e.g. ascii, binary, hex)
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
 function simpleWrite(buf) {
   return buf.toString(this.encoding);
 }

src/node.cc

@@ -1312,11 +1312,17 @@ enum encoding ParseEncoding(const char* encoding,
           return UCS2;
       }
       break;
+    case 'l':
+      // latin1
+      if (encoding[1] == 'a') {
+        if (strncmp(encoding + 2, "tin1", 4) == 0)
+          return LATIN1;
+      }
     case 'b':
       // binary
       if (encoding[1] == 'i') {
         if (strncmp(encoding + 2, "nary", 4) == 0)
-          return BINARY;
+          return LATIN1;
 
       // buffer
       } else if (encoding[1] == 'u') {
@@ -1346,6 +1352,8 @@ enum encoding ParseEncoding(const char* encoding,
     return UCS2;
   } else if (StringEqualNoCase(encoding, "utf-16le")) {
     return UCS2;
+  } else if (StringEqualNoCase(encoding, "latin1")) {
+    return LATIN1;
   } else if (StringEqualNoCase(encoding, "binary")) {
     return BINARY;
   } else if (StringEqualNoCase(encoding, "buffer")) {
@@ -1389,7 +1397,7 @@ ssize_t DecodeBytes(Isolate* isolate,
 
   if (val->IsArray()) {
     fprintf(stderr, "'raw' encoding (array of integers) has been removed. "
-                    "Use 'binary'.\n");
+                    "Use 'latin1'.\n");
     UNREACHABLE();
     return -1;
   }

src/node.h

@@ -278,15 +278,15 @@ inline void NODE_SET_PROTOTYPE_METHOD(v8::Local<v8::FunctionTemplate> recv,
 }
 #define NODE_SET_PROTOTYPE_METHOD node::NODE_SET_PROTOTYPE_METHOD
 
-enum encoding {ASCII, UTF8, BASE64, UCS2, BINARY, HEX, BUFFER};
+enum encoding {ASCII, UTF8, BASE64, UCS2, LATIN1, BINARY, HEX, BUFFER};
 NODE_EXTERN enum encoding ParseEncoding(
     v8::Isolate* isolate,
     v8::Local<v8::Value> encoding_v,
-    enum encoding default_encoding = BINARY);
+    enum encoding default_encoding = LATIN1);
 NODE_DEPRECATED("Use ParseEncoding(isolate, ...)",
                 inline enum encoding ParseEncoding(
       v8::Local<v8::Value> encoding_v,
-      enum encoding default_encoding = BINARY) {
+      enum encoding default_encoding = LATIN1) {
   return ParseEncoding(v8::Isolate::GetCurrent(), encoding_v, default_encoding);
 })
 
@@ -302,7 +302,7 @@ NODE_DEPRECATED("Use FatalException(isolate, ...)",
 NODE_EXTERN v8::Local<v8::Value> Encode(v8::Isolate* isolate,
                                         const char* buf,
                                         size_t len,
-                                        enum encoding encoding = BINARY);
+                                        enum encoding encoding = LATIN1);
 
 // The input buffer should be in host endianness.
 NODE_EXTERN v8::Local<v8::Value> Encode(v8::Isolate* isolate,
@@ -313,7 +313,7 @@ NODE_DEPRECATED("Use Encode(isolate, ...)",
                 inline v8::Local<v8::Value> Encode(
     const void* buf,
     size_t len,
-    enum encoding encoding = BINARY) {
+    enum encoding encoding = LATIN1) {
   v8::Isolate* isolate = v8::Isolate::GetCurrent();
   if (encoding == UCS2) {
     assert(reinterpret_cast<uintptr_t>(buf) % sizeof(uint16_t) == 0 &&
@@ -327,11 +327,11 @@ NODE_DEPRECATED("Use Encode(isolate, ...)",
 // Returns -1 if the handle was not valid for decoding
 NODE_EXTERN ssize_t DecodeBytes(v8::Isolate* isolate,
                                 v8::Local<v8::Value>,
-                                enum encoding encoding = BINARY);
+                                enum encoding encoding = LATIN1);
 NODE_DEPRECATED("Use DecodeBytes(isolate, ...)",
                 inline ssize_t DecodeBytes(
     v8::Local<v8::Value> val,
-    enum encoding encoding = BINARY) {
+    enum encoding encoding = LATIN1) {
   return DecodeBytes(v8::Isolate::GetCurrent(), val, encoding);
 })
 
@@ -340,12 +340,12 @@ NODE_EXTERN ssize_t DecodeWrite(v8::Isolate* isolate,
                                 char* buf,
                                 size_t buflen,
                                 v8::Local<v8::Value>,
-                                enum encoding encoding = BINARY);
+                                enum encoding encoding = LATIN1);
 NODE_DEPRECATED("Use DecodeWrite(isolate, ...)",
                 inline ssize_t DecodeWrite(char* buf,
                                            size_t buflen,
                                            v8::Local<v8::Value> val,
-                                           enum encoding encoding = BINARY) {
+                                           enum encoding encoding = LATIN1) {
   return DecodeWrite(v8::Isolate::GetCurrent(), buf, buflen, val, encoding);
 })
 

src/node_buffer.cc

@@ -491,8 +491,8 @@ void StringSlice<UCS2>(const FunctionCallbackInfo<Value>& args) {
 }
 
 
-void BinarySlice(const FunctionCallbackInfo<Value>& args) {
-  StringSlice<BINARY>(args);
+void Latin1Slice(const FunctionCallbackInfo<Value>& args) {
+  StringSlice<LATIN1>(args);
 }
 
 
@@ -692,8 +692,8 @@ void Base64Write(const FunctionCallbackInfo<Value>& args) {
 }
 
 
-void BinaryWrite(const FunctionCallbackInfo<Value>& args) {
-  StringWrite<BINARY>(args);
+void Latin1Write(const FunctionCallbackInfo<Value>& args) {
+  StringWrite<LATIN1>(args);
 }
 
 
@@ -1035,7 +1035,7 @@ void IndexOfString(const FunctionCallbackInfo<Value>& args) {
                           needle_length,
                           offset,
                           is_forward);
-  } else if (enc == BINARY) {
+  } else if (enc == LATIN1) {
     uint8_t* needle_data = static_cast<uint8_t*>(malloc(needle_length));
     if (needle_data == nullptr) {
       return args.GetReturnValue().Set(-1);
@@ -1183,14 +1183,14 @@ void SetupBufferJS(const FunctionCallbackInfo<Value>& args) {
 
   env->SetMethod(proto, "asciiSlice", AsciiSlice);
   env->SetMethod(proto, "base64Slice", Base64Slice);
-  env->SetMethod(proto, "binarySlice", BinarySlice);
+  env->SetMethod(proto, "latin1Slice", Latin1Slice);
   env->SetMethod(proto, "hexSlice", HexSlice);
   env->SetMethod(proto, "ucs2Slice", Ucs2Slice);
   env->SetMethod(proto, "utf8Slice", Utf8Slice);
 
   env->SetMethod(proto, "asciiWrite", AsciiWrite);
   env->SetMethod(proto, "base64Write", Base64Write);
-  env->SetMethod(proto, "binaryWrite", BinaryWrite);
+  env->SetMethod(proto, "latin1Write", Latin1Write);
   env->SetMethod(proto, "hexWrite", HexWrite);
   env->SetMethod(proto, "ucs2Write", Ucs2Write);
   env->SetMethod(proto, "utf8Write", Utf8Write);

src/stream_base-inl.h

@@ -71,8 +71,8 @@ void StreamBase::AddMethods(Environment* env,
                       "writeUcs2String",
                       JSMethod<Base, &StreamBase::WriteString<UCS2> >);
   env->SetProtoMethod(t,
-                      "writeBinaryString",
-                      JSMethod<Base, &StreamBase::WriteString<BINARY> >);
+                      "writeLatin1String",
+                      JSMethod<Base, &StreamBase::WriteString<LATIN1> >);
 }
 
 

src/stream_base.cc

@@ -33,7 +33,7 @@ template int StreamBase::WriteString<UTF8>(
     const FunctionCallbackInfo<Value>& args);
 template int StreamBase::WriteString<UCS2>(
     const FunctionCallbackInfo<Value>& args);
-template int StreamBase::WriteString<BINARY>(
+template int StreamBase::WriteString<LATIN1>(
     const FunctionCallbackInfo<Value>& args);
 
 

src/string_bytes.cc

@@ -271,6 +271,7 @@ size_t StringBytes::Write(Isolate* isolate,
 
   switch (encoding) {
     case ASCII:
+    case LATIN1:
     case BINARY:
       if (is_extern && str->IsOneByte()) {
         memcpy(buf, data, nbytes);
@@ -376,15 +377,17 @@ size_t StringBytes::StorageSize(Isolate* isolate,
   size_t data_size = 0;
   bool is_buffer = Buffer::HasInstance(val);
 
-  if (is_buffer && (encoding == BUFFER || encoding == BINARY)) {
+  if (is_buffer &&
+      (encoding == BUFFER || encoding == BINARY || encoding == LATIN1)) {
     return Buffer::Length(val);
   }
 
   Local<String> str = val->ToString(isolate);
 
   switch (encoding) {
-    case BINARY:
     case ASCII:
+    case LATIN1:
+    case BINARY:
       data_size = str->Length();
       break;
 
@@ -425,7 +428,8 @@ size_t StringBytes::Size(Isolate* isolate,
   size_t data_size = 0;
   bool is_buffer = Buffer::HasInstance(val);
 
-  if (is_buffer && (encoding == BUFFER || encoding == BINARY))
+  if (is_buffer &&
+      (encoding == BUFFER || encoding == BINARY || encoding == LATIN1))
     return Buffer::Length(val);
 
   const char* data;
@@ -435,8 +439,9 @@ size_t StringBytes::Size(Isolate* isolate,
   Local<String> str = val->ToString(isolate);
 
   switch (encoding) {
-    case BINARY:
     case ASCII:
+    case LATIN1:
+    case BINARY:
       data_size = str->Length();
       break;
 
@@ -639,6 +644,7 @@ Local<Value> StringBytes::Encode(Isolate* isolate,
                                 buflen);
       break;
 
+    case LATIN1:
     case BINARY:
       if (buflen < EXTERN_APEX)
         val = OneByteString(isolate, buf, buflen);

test/addons/stringbytes-external-exceed-max/test-stringbytes-external-at-max.js

@@ -29,5 +29,5 @@ if (!binding.ensureAllocation(2 * kStringMaxLength)) {
   return;
 }
 
-const maxString = buf.toString('binary');
+const maxString = buf.toString('latin1');
 assert.equal(maxString.length, kStringMaxLength);

test/addons/stringbytes-external-exceed-max/test-stringbytes-external-exceed-max-by-1-binary.js

@@ -30,13 +30,13 @@ if (!binding.ensureAllocation(2 * kStringMaxLength)) {
 }
 
 assert.throws(function() {
-  buf.toString('binary');
+  buf.toString('latin1');
 }, /"toString\(\)" failed/);
 
-var maxString = buf.toString('binary', 1);
+var maxString = buf.toString('latin1', 1);
 assert.equal(maxString.length, kStringMaxLength);
 // Free the memory early instead of at the end of the next assignment
 maxString = undefined;
 
-maxString = buf.toString('binary', 0, kStringMaxLength);
+maxString = buf.toString('latin1', 0, kStringMaxLength);
 assert.equal(maxString.length, kStringMaxLength);

test/disabled/tls_server.js

@@ -19,7 +19,7 @@ try {
 var i = 0;
 var server = net.createServer(function(connection) {
   connection.setSecure(credentials);
-  connection.setEncoding('binary');
+  connection.setEncoding('latin1');
 
   connection.on('secure', function() {
     //console.log('Secure');

test/parallel/test-buffer-alloc.js

@@ -235,7 +235,7 @@ assert.strictEqual('Unknown encoding: invalid', caught_error.message);
 // try to create 0-length buffers
 Buffer.from('');
 Buffer.from('', 'ascii');
-Buffer.from('', 'binary');
+Buffer.from('', 'latin1');
 Buffer.alloc(0);
 Buffer.allocUnsafe(0);
 
@@ -689,7 +689,7 @@ assert.equal(dot.toString('base64'), '//4uAA==');
   for (let i = 0; i < segments.length; ++i) {
     pos += b.write(segments[i], pos, 'base64');
   }
-  assert.equal(b.toString('binary', 0, pos), 'Madness?! This is node.js!');
+  assert.equal(b.toString('latin1', 0, pos), 'Madness?! This is node.js!');
 }
 
 // Regression test for https://github.com/nodejs/node/issues/3496.
@@ -845,13 +845,13 @@ assert.equal(0, Buffer.from('hello').slice(0, 0).length);
   // Binary encoding should write only one byte per character.
   const b = Buffer.from([0xde, 0xad, 0xbe, 0xef]);
   let s = String.fromCharCode(0xffff);
-  b.write(s, 0, 'binary');
+  b.write(s, 0, 'latin1');
   assert.equal(0xff, b[0]);
   assert.equal(0xad, b[1]);
   assert.equal(0xbe, b[2]);
   assert.equal(0xef, b[3]);
   s = String.fromCharCode(0xaaee);
-  b.write(s, 0, 'binary');
+  b.write(s, 0, 'latin1');
   assert.equal(0xee, b[0]);
   assert.equal(0xad, b[1]);
   assert.equal(0xbe, b[2]);
@@ -969,7 +969,7 @@ assert.equal(0, Buffer.from('hello').slice(0, 0).length);
   // test for buffer overrun
   const buf = Buffer.from([0, 0, 0, 0, 0]); // length: 5
   var sub = buf.slice(0, 4);         // length: 4
-  written = sub.write('12345', 'binary');
+  written = sub.write('12345', 'latin1');
   assert.equal(written, 4);
   assert.equal(buf[4], 0);
 }
@@ -992,7 +992,7 @@ assert.equal(Buffer.from('99').length, 2);
 assert.equal(Buffer.from('13.37').length, 5);
 
 // Ensure that the length argument is respected.
-'ascii utf8 hex base64 binary'.split(' ').forEach(function(enc) {
+'ascii utf8 hex base64 latin1'.split(' ').forEach(function(enc) {
   assert.equal(Buffer.allocUnsafe(1).write('aaaaaa', 0, 1, enc), 1);
 });
 
@@ -1011,6 +1011,7 @@ Buffer.from(Buffer.allocUnsafe(0), 0, 0);
   'utf8',
   'utf-8',
   'ascii',
+  'latin1',
   'binary',
   'base64',
   'ucs2',

test/parallel/test-buffer-bytelength.js

@@ -6,9 +6,9 @@ var Buffer = require('buffer').Buffer;
 var SlowBuffer = require('buffer').SlowBuffer;
 
 // coerce values to string
-assert.equal(Buffer.byteLength(32, 'binary'), 2);
+assert.equal(Buffer.byteLength(32, 'latin1'), 2);
 assert.equal(Buffer.byteLength(NaN, 'utf8'), 3);
-assert.equal(Buffer.byteLength({}, 'binary'), 15);
+assert.equal(Buffer.byteLength({}, 'latin1'), 15);
 assert.equal(Buffer.byteLength(), 9);
 
 var buff = new Buffer(10);
@@ -80,6 +80,7 @@ assert.equal(Buffer.byteLength('aaaa==', 'base64'), 3);
 assert.equal(Buffer.byteLength('Il était tué'), 14);
 assert.equal(Buffer.byteLength('Il était tué', 'utf8'), 14);
 assert.equal(Buffer.byteLength('Il était tué', 'ascii'), 12);
+assert.equal(Buffer.byteLength('Il était tué', 'latin1'), 12);
 assert.equal(Buffer.byteLength('Il était tué', 'binary'), 12);
 ['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) {
   assert.equal(24, Buffer.byteLength('Il était tué', encoding));

test/parallel/test-buffer-fill.js

@@ -73,6 +73,27 @@ testBufs('a\u0234b\u0235c\u0236', 4, 1, 'binary');
 testBufs('a\u0234b\u0235c\u0236', 12, 1, 'binary');
 
 
+// LATIN1
+testBufs('abc', 'latin1');
+testBufs('\u0222aa', 'latin1');
+testBufs('a\u0234b\u0235c\u0236', 'latin1');
+testBufs('abc', 4, 'latin1');
+testBufs('abc', 5, 'latin1');
+testBufs('abc', SIZE, 'latin1');
+testBufs('\u0222aa', 2, 'latin1');
+testBufs('\u0222aa', 8, 'latin1');
+testBufs('a\u0234b\u0235c\u0236', 4, 'latin1');
+testBufs('a\u0234b\u0235c\u0236', 12, 'latin1');
+testBufs('abc', 4, -1, 'latin1');
+testBufs('abc', 4, 1, 'latin1');
+testBufs('abc', 5, 1, 'latin1');
+testBufs('\u0222aa', 2, -1, 'latin1');
+testBufs('\u0222aa', 8, 1, 'latin1');
+testBufs('a\u0234b\u0235c\u0236', 4, -1, 'latin1');
+testBufs('a\u0234b\u0235c\u0236', 4, 1, 'latin1');
+testBufs('a\u0234b\u0235c\u0236', 12, 1, 'latin1');
+
+
 // UCS2
 testBufs('abc', 'ucs2');
 testBufs('\u0222aa', 'ucs2');

test/parallel/test-buffer-includes.js

@@ -102,6 +102,14 @@ assert(
     Buffer.from(b.toString('ascii'), 'ascii')
     .includes(Buffer.from('d', 'ascii'), 0, 'ascii'));
 
+// test latin1 encoding
+assert(
+    Buffer.from(b.toString('latin1'), 'latin1')
+    .includes('d', 0, 'latin1'));
+assert(
+    Buffer.from(b.toString('latin1'), 'latin1')
+    .includes(Buffer.from('d', 'latin1'), 0, 'latin1'));
+
 // test binary encoding
 assert(
     Buffer.from(b.toString('binary'), 'binary')

test/parallel/test-buffer-indexof.js

@@ -102,6 +102,23 @@ assert.equal(
     Buffer.from(b.toString('ascii'), 'ascii')
     .indexOf(Buffer.from('d', 'ascii'), 0, 'ascii'), 3);
 
+// test latin1 encoding
+assert.equal(
+    Buffer.from(b.toString('latin1'), 'latin1')
+    .indexOf('d', 0, 'latin1'), 3);
+assert.equal(
+    Buffer.from(b.toString('latin1'), 'latin1')
+    .indexOf(Buffer.from('d', 'latin1'), 0, 'latin1'), 3);
+assert.equal(
+    Buffer.from('aa\u00e8aa', 'latin1')
+    .indexOf('\u00e8', 'latin1'), 2);
+assert.equal(
+    Buffer.from('\u00e8', 'latin1')
+    .indexOf('\u00e8', 'latin1'), 0);
+assert.equal(
+    Buffer.from('\u00e8', 'latin1')
+    .indexOf(Buffer.from('\u00e8', 'latin1'), 'latin1'), 0);
+
 // test binary encoding
 assert.equal(
     Buffer.from(b.toString('binary'), 'binary')
@@ -357,20 +374,24 @@ assert.equal(b.lastIndexOf('b', [2]), 1);
 // Test needles longer than the haystack.
 assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'ucs2'), -1);
 assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'utf8'), -1);
+assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'latin1'), -1);
 assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'binary'), -1);
 assert.strictEqual(b.lastIndexOf(Buffer.from('aaaaaaaaaaaaaaa')), -1);
 assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 2, 'ucs2'), -1);
 assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 3, 'utf8'), -1);
+assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 5, 'latin1'), -1);
 assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 5, 'binary'), -1);
 assert.strictEqual(b.lastIndexOf(Buffer.from('aaaaaaaaaaaaaaa'), 7), -1);
 
 // 你好 expands to a total of 6 bytes using UTF-8 and 4 bytes using UTF-16
 assert.strictEqual(buf_bc.lastIndexOf('你好', 'ucs2'), -1);
 assert.strictEqual(buf_bc.lastIndexOf('你好', 'utf8'), -1);
+assert.strictEqual(buf_bc.lastIndexOf('你好', 'latin1'), -1);
 assert.strictEqual(buf_bc.lastIndexOf('你好', 'binary'), -1);
 assert.strictEqual(buf_bc.lastIndexOf(Buffer.from('你好')), -1);
 assert.strictEqual(buf_bc.lastIndexOf('你好', 2, 'ucs2'), -1);
 assert.strictEqual(buf_bc.lastIndexOf('你好', 3, 'utf8'), -1);
+assert.strictEqual(buf_bc.lastIndexOf('你好', 5, 'latin1'), -1);
 assert.strictEqual(buf_bc.lastIndexOf('你好', 5, 'binary'), -1);
 assert.strictEqual(buf_bc.lastIndexOf(Buffer.from('你好'), 7), -1);
 
@@ -395,6 +416,7 @@ assert.equal(-1, bufferString.lastIndexOf('a ', -28));
 // but in a part of the buffer that does not make search to search
 // due do length constraints.
 const abInUCS2 = Buffer.from('ab', 'ucs2');
+assert.strictEqual(-1, Buffer.from('µaaaa¶bbbb', 'latin1').lastIndexOf('µ'));
 assert.strictEqual(-1, Buffer.from('µaaaa¶bbbb', 'binary').lastIndexOf('µ'));
 assert.strictEqual(-1, Buffer.from('bc').lastIndexOf('ab'));
 assert.strictEqual(-1, Buffer.from('abc').lastIndexOf('qa'));

test/parallel/test-buffer.js

@@ -237,6 +237,7 @@ assert.strictEqual('Unknown encoding: invalid', caught_error.message);
 // try to create 0-length buffers
 new Buffer('');
 new Buffer('', 'ascii');
+new Buffer('', 'latin1');
 new Buffer('', 'binary');
 Buffer(0);
 
@@ -687,6 +688,7 @@ assert.equal(dot.toString('base64'), '//4uAA==');
   for (let i = 0; i < segments.length; ++i) {
     pos += b.write(segments[i], pos, 'base64');
   }
+  assert.equal(b.toString('latin1', 0, pos), 'Madness?! This is node.js!');
   assert.equal(b.toString('binary', 0, pos), 'Madness?! This is node.js!');
 }
 
@@ -845,6 +847,23 @@ assert.equal(0, Buffer('hello').slice(0, 0).length);
   assert.equal(b.toString(encoding), 'あいうえお');
 });
 
+{
+  // latin1 encoding should write only one byte per character.
+  const b = Buffer([0xde, 0xad, 0xbe, 0xef]);
+  let s = String.fromCharCode(0xffff);
+  b.write(s, 0, 'latin1');
+  assert.equal(0xff, b[0]);
+  assert.equal(0xad, b[1]);
+  assert.equal(0xbe, b[2]);
+  assert.equal(0xef, b[3]);
+  s = String.fromCharCode(0xaaee);
+  b.write(s, 0, 'latin1');
+  assert.equal(0xee, b[0]);
+  assert.equal(0xad, b[1]);
+  assert.equal(0xbe, b[2]);
+  assert.equal(0xef, b[3]);
+}
+
 {
   // Binary encoding should write only one byte per character.
   const b = Buffer([0xde, 0xad, 0xbe, 0xef]);
@@ -973,6 +992,9 @@ assert.equal(0, Buffer('hello').slice(0, 0).length);
   // test for buffer overrun
   const buf = new Buffer([0, 0, 0, 0, 0]); // length: 5
   var sub = buf.slice(0, 4);         // length: 4
+  written = sub.write('12345', 'latin1');
+  assert.equal(written, 4);
+  assert.equal(buf[4], 0);
   written = sub.write('12345', 'binary');
   assert.equal(written, 4);
   assert.equal(buf[4], 0);
@@ -994,7 +1016,7 @@ assert.equal(Buffer('99').length, 2);
 assert.equal(Buffer('13.37').length, 5);
 
 // Ensure that the length argument is respected.
-'ascii utf8 hex base64 binary'.split(' ').forEach(function(enc) {
+'ascii utf8 hex base64 latin1 binary'.split(' ').forEach(function(enc) {
   assert.equal(Buffer(1).write('aaaaaa', 0, 1, enc), 1);
 });
 
@@ -1013,6 +1035,7 @@ Buffer(Buffer(0), 0, 0);
   'utf8',
   'utf-8',
   'ascii',
+  'latin1',
   'binary',
   'base64',
   'ucs2',

test/parallel/test-crypto-binary-default.js

@@ -14,7 +14,7 @@ var crypto = require('crypto');
 var tls = require('tls');
 const DH_NOT_SUITABLE_GENERATOR = crypto.constants.DH_NOT_SUITABLE_GENERATOR;
 
-crypto.DEFAULT_ENCODING = 'binary';
+crypto.DEFAULT_ENCODING = 'latin1';
 
 var fs = require('fs');
 var path = require('path');
@@ -346,11 +346,11 @@ var a3 = crypto.createHash('sha512').update('Test123').digest(); // binary
 var a4 = crypto.createHash('sha1').update('Test123').digest('buffer');
 
 if (!common.hasFipsCrypto) {
-  var a0 = crypto.createHash('md5').update('Test123').digest('binary');
+  var a0 = crypto.createHash('md5').update('Test123').digest('latin1');
   assert.equal(
     a0,
     'h\u00ea\u00cb\u0097\u00d8o\fF!\u00fa+\u000e\u0017\u00ca\u00bd\u008c',
-    'Test MD5 as binary'
+    'Test MD5 as latin1'
   );
 }
 
@@ -364,7 +364,7 @@ assert.equal(a3, '\u00c1(4\u00f1\u0003\u001fd\u0097!O\'\u00d4C/&Qz\u00d4' +
                  '\u00d6\u0092\u00a3\u00df\u00a2i\u00a1\u009b\n\n*\u000f' +
                  '\u00d7\u00d6\u00a2\u00a8\u0085\u00e3<\u0083\u009c\u0093' +
                  '\u00c2\u0006\u00da0\u00a1\u00879(G\u00ed\'',
-             'Test SHA512 as assumed binary');
+             'Test SHA512 as assumed latin1');
 
 assert.deepStrictEqual(
   a4,
@@ -530,7 +530,7 @@ var dh2 = crypto.createDiffieHellman(p1, 'base64');
 var key1 = dh1.generateKeys();
 var key2 = dh2.generateKeys('hex');
 var secret1 = dh1.computeSecret(key2, 'hex', 'base64');
-var secret2 = dh2.computeSecret(key1, 'binary', 'buffer');
+var secret2 = dh2.computeSecret(key1, 'latin1', 'buffer');
 
 assert.equal(secret1, secret2.toString('base64'));
 

test/parallel/test-crypto-dh.js

@@ -17,7 +17,7 @@ var dh2 = crypto.createDiffieHellman(p1, 'buffer');
 var key1 = dh1.generateKeys();
 var key2 = dh2.generateKeys('hex');
 var secret1 = dh1.computeSecret(key2, 'hex', 'base64');
-var secret2 = dh2.computeSecret(key1, 'binary', 'buffer');
+var secret2 = dh2.computeSecret(key1, 'latin1', 'buffer');
 
 assert.equal(secret1, secret2.toString('base64'));
 assert.equal(dh1.verifyError, 0);
@@ -155,7 +155,7 @@ const ecdh2 = crypto.createECDH('prime256v1');
 key1 = ecdh1.generateKeys();
 key2 = ecdh2.generateKeys('hex');
 secret1 = ecdh1.computeSecret(key2, 'hex', 'base64');
-secret2 = ecdh2.computeSecret(key1, 'binary', 'buffer');
+secret2 = ecdh2.computeSecret(key1, 'latin1', 'buffer');
 
 assert.equal(secret1, secret2.toString('base64'));
 
@@ -176,7 +176,7 @@ const ecdh3 = crypto.createECDH('secp256k1');
 const key3 = ecdh3.generateKeys();
 
 assert.throws(function() {
-  ecdh2.computeSecret(key3, 'binary', 'buffer');
+  ecdh2.computeSecret(key3, 'latin1', 'buffer');
 });
 
 // ECDH should allow .setPrivateKey()/.setPublicKey()

test/parallel/test-crypto-hash.js

@@ -38,11 +38,11 @@ a8.end();
 a8 = a8.read();
 
 if (!common.hasFipsCrypto) {
-  var a0 = crypto.createHash('md5').update('Test123').digest('binary');
+  var a0 = crypto.createHash('md5').update('Test123').digest('latin1');
   assert.equal(
     a0,
     'h\u00ea\u00cb\u0097\u00d8o\fF!\u00fa+\u000e\u0017\u00ca\u00bd\u008c',
-    'Test MD5 as binary'
+    'Test MD5 as latin1'
   );
 }
 assert.equal(a1, '8308651804facb7b9af8ffc53a33a22d6a1c8ac2', 'Test SHA1');
@@ -56,7 +56,7 @@ assert.deepStrictEqual(
     '\u00d6\u0092\u00a3\u00df\u00a2i\u00a1\u009b\n\n*\u000f' +
     '\u00d7\u00d6\u00a2\u00a8\u0085\u00e3<\u0083\u009c\u0093' +
     '\u00c2\u0006\u00da0\u00a1\u00879(G\u00ed\'',
-    'binary'),
+    'latin1'),
   'Test SHA512 as assumed buffer');
 assert.deepStrictEqual(
   a4,
@@ -102,7 +102,7 @@ assert.equal(
 
 assert.notEqual(
     hutf8,
-    crypto.createHash('sha512').update('УТФ-8 text', 'binary').digest('hex'));
+    crypto.createHash('sha512').update('УТФ-8 text', 'latin1').digest('hex'));
 
 var h3 = crypto.createHash('sha256');
 h3.digest();

test/parallel/test-crypto-padding-aes256.js

@@ -18,13 +18,13 @@ function aes256(decipherFinal) {
   function encrypt(val, pad) {
     var c = crypto.createCipheriv('aes256', key, iv);
     c.setAutoPadding(pad);
-    return c.update(val, 'utf8', 'binary') + c.final('binary');
+    return c.update(val, 'utf8', 'latin1') + c.final('latin1');
   }
 
   function decrypt(val, pad) {
     var c = crypto.createDecipheriv('aes256', key, iv);
     c.setAutoPadding(pad);
-    return c.update(val, 'binary', 'utf8') + c[decipherFinal]('utf8');
+    return c.update(val, 'latin1', 'utf8') + c[decipherFinal]('utf8');
   }
 
   // echo 0123456789abcdef0123456789abcdef \

test/parallel/test-crypto-padding.js

@@ -65,7 +65,7 @@ function dec(encd, pad) {
   var decrypt = crypto.createDecipheriv(CIPHER_NAME, KEY_PLAIN, IV_PLAIN);
   decrypt.setAutoPadding(pad);
   var plain = decrypt.update(encd, 'hex');
-  plain += decrypt.final('binary');
+  plain += decrypt.final('latin1');
   return plain;
 }
 

test/parallel/test-crypto-pbkdf2.js

@@ -13,10 +13,10 @@ var crypto = require('crypto');
 //
 function testPBKDF2(password, salt, iterations, keylen, expected) {
   var actual = crypto.pbkdf2Sync(password, salt, iterations, keylen, 'sha256');
-  assert.equal(actual.toString('binary'), expected);
+  assert.equal(actual.toString('latin1'), expected);
 
   crypto.pbkdf2(password, salt, iterations, keylen, 'sha256', (err, actual) => {
-    assert.equal(actual.toString('binary'), expected);
+    assert.equal(actual.toString('latin1'), expected);
   });
 }
 

test/parallel/test-crypto-sign-verify.js

@@ -33,23 +33,23 @@ var keyPem = fs.readFileSync(common.fixturesDir + '/test_key.pem', 'ascii');
 {
   const s2 = crypto.createSign('RSA-SHA256')
                    .update('Test123')
-                   .sign(keyPem, 'binary');
+                   .sign(keyPem, 'latin1');
   let s2stream = crypto.createSign('RSA-SHA256');
   s2stream.end('Test123');
-  s2stream = s2stream.sign(keyPem, 'binary');
+  s2stream = s2stream.sign(keyPem, 'latin1');
   assert.equal(s2, s2stream, 'Stream produces same output');
 
   let verified = crypto.createVerify('RSA-SHA256')
                        .update('Test')
                        .update('123')
-                       .verify(certPem, s2, 'binary');
-  assert.strictEqual(verified, true, 'sign and verify (binary)');
+                       .verify(certPem, s2, 'latin1');
+  assert.strictEqual(verified, true, 'sign and verify (latin1)');
 
   const verStream = crypto.createVerify('RSA-SHA256');
   verStream.write('Tes');
   verStream.write('t12');
   verStream.end('3');
-  verified = verStream.verify(certPem, s2, 'binary');
+  verified = verStream.verify(certPem, s2, 'latin1');
   assert.strictEqual(verified, true, 'sign and verify (stream)');
 }
 

test/parallel/test-file-read-noexist.js

@@ -6,7 +6,7 @@ var fs = require('fs');
 var got_error = false;
 
 var filename = path.join(common.fixturesDir, 'does_not_exist.txt');
-fs.readFile(filename, 'binary', function(err, content) {
+fs.readFile(filename, 'latin1', function(err, content) {
   if (err) {
     got_error = true;
   } else {

test/parallel/test-fs-write-stream-encoding.js

@@ -5,7 +5,7 @@ const fs = require('fs');
 const path = require('path');
 const stream = require('stream');
 const firstEncoding = 'base64';
-const secondEncoding = 'binary';
+const secondEncoding = 'latin1';
 
 const examplePath = path.join(common.fixturesDir, 'x.txt');
 const dummyPath = path.join(common.tmpDir, 'x.txt');

test/parallel/test-http-status-message.js

@@ -22,7 +22,7 @@ function test() {
     bufs.push(chunk);
   });
   client.on('end', function() {
-    var head = Buffer.concat(bufs).toString('binary').split('\r\n')[0];
+    var head = Buffer.concat(bufs).toString('latin1').split('\r\n')[0];
     assert.equal('HTTP/1.1 200 Custom Message', head);
     console.log('ok');
     s.close();

test/parallel/test-net-binary.js

@@ -14,9 +14,9 @@ for (var i = 255; i >= 0; i--) {
 
 // safe constructor
 var echoServer = net.Server(function(connection) {
-  connection.setEncoding('binary');
+  connection.setEncoding('latin1');
   connection.on('data', function(chunk) {
-    connection.write(chunk, 'binary');
+    connection.write(chunk, 'latin1');
   });
   connection.on('end', function() {
     connection.end();
@@ -32,11 +32,11 @@ echoServer.on('listening', function() {
     port: common.PORT
   });
 
-  c.setEncoding('binary');
+  c.setEncoding('latin1');
   c.on('data', function(chunk) {
     var n = j + chunk.length;
     while (j < n && j < 256) {
-      c.write(String.fromCharCode(j), 'binary');
+      c.write(String.fromCharCode(j), 'latin1');
       j++;
     }
     if (j === 256) {

test/parallel/test-stream-writev.js

@@ -58,7 +58,7 @@ function test(decode, uncork, multi, next) {
     { encoding: 'ascii', chunk: 'hello, ' },
     { encoding: 'utf8', chunk: 'world' },
     { encoding: 'buffer', chunk: [33] },
-    { encoding: 'binary', chunk: '\nand then...' },
+    { encoding: 'latin1', chunk: '\nand then...' },
     { encoding: 'hex', chunk: 'facebea7deadbeefdecafbad' }
   ];
 
@@ -82,7 +82,7 @@ function test(decode, uncork, multi, next) {
     w.cork();
 
   w.write(Buffer.from('!'), 'buffer', cnt('!'));
-  w.write('\nand then...', 'binary', cnt('and then'));
+  w.write('\nand then...', 'latin1', cnt('and then'));
 
   if (multi)
     w.uncork();

test/parallel/test-stream2-writable.js

@@ -140,6 +140,7 @@ test('write bufferize', function(t) {
         'utf8',
         'utf-8',
         'ascii',
+        'latin1',
         'binary',
         'base64',
         'ucs2',
@@ -177,6 +178,7 @@ test('write no bufferize', function(t) {
         'utf8',
         'utf-8',
         'ascii',
+        'latin1',
         'binary',
         'base64',
         'ucs2',
@@ -275,7 +277,7 @@ test('encoding should be ignored for buffers', function(t) {
     t.end();
   };
   var buf = Buffer.from(hex, 'hex');
-  tw.write(buf, 'binary');
+  tw.write(buf, 'latin1');
 });
 
 test('writables are not pipable', function(t) {

test/parallel/test-stringbytes-external.js

@@ -11,7 +11,13 @@ var write_str = 'a';
 
 // first do basic checks
 var b = Buffer.from(write_str, 'ucs2');
-var c = b.toString('binary');
+// first check latin1
+var c = b.toString('latin1');
+assert.equal(b[0], 0x61);
+assert.equal(b[1], 0);
+assert.equal(ucs2_control, c);
+// now check binary
+c = b.toString('binary');
 assert.equal(b[0], 0x61);
 assert.equal(b[1], 0);
 assert.equal(ucs2_control, c);
@@ -28,13 +34,20 @@ for (let i = 0; i < b.length; i += 2) {
   assert.equal(b[i], 0x61);
   assert.equal(b[i + 1], 0);
 }
+
 // create another string to create an external string
-var b_bin = b.toString('binary');
 var b_ucs = b.toString('ucs2');
+
+// check control against external binary string
+var l_bin = b.toString('latin1');
+assert.equal(ucs2_control, l_bin);
+
 // check control against external binary string
+var b_bin = b.toString('binary');
 assert.equal(ucs2_control, b_bin);
+
 // create buffer copy from external
-var c_bin = Buffer.from(b_bin, 'binary');
+var c_bin = Buffer.from(l_bin, 'latin1');
 var c_ucs = Buffer.from(b_ucs, 'ucs2');
 // make sure they're the same length
 assert.equal(c_bin.length, c_ucs.length);
@@ -44,8 +57,8 @@ for (let i = 0; i < c_bin.length; i++) {
 }
 // check resultant strings
 assert.equal(c_bin.toString('ucs2'), c_ucs.toString('ucs2'));
-assert.equal(c_bin.toString('binary'), ucs2_control);
-assert.equal(c_ucs.toString('binary'), ucs2_control);
+assert.equal(c_bin.toString('latin1'), ucs2_control);
+assert.equal(c_ucs.toString('latin1'), ucs2_control);
 
 
 // now let's test BASE64 and HEX ecoding/decoding