diff --git a/msgpack/unpack_define.h b/msgpack/unpack_define.h
index bc513ca..c3a50ef 100644
--- a/msgpack/unpack_define.h
+++ b/msgpack/unpack_define.h
@@ -41,13 +41,14 @@ typedef enum {
 	//CS_                = 0x02,  // false
 	//CS_                = 0x03,  // true
 
-	//CS_                = 0x04,
-	//CS_                = 0x05,
-	//CS_                = 0x06,
-	//CS_                = 0x07,
+	CS_BIN_8             = 0x04,
+	CS_BIN_16            = 0x05,
+	CS_BIN_32            = 0x06,
 
+	//CS_                = 0x07,
 	//CS_                = 0x08,
 	//CS_                = 0x09,
+
 	CS_FLOAT             = 0x0a,
 	CS_DOUBLE            = 0x0b,
 	CS_UINT_8            = 0x0c,
@@ -65,7 +66,7 @@ typedef enum {
 	//CS_BIG_INT_32        = 0x17,
 	//CS_BIG_FLOAT_16      = 0x18,
 	//CS_BIG_FLOAT_32      = 0x19,
-	CS_RAW_8			 = 0x19,
+	CS_RAW_8	     = 0x19,
 	CS_RAW_16            = 0x1a,
 	CS_RAW_32            = 0x1b,
 	CS_ARRAY_16          = 0x1c,
@@ -75,6 +76,7 @@ typedef enum {
 
 	//ACS_BIG_INT_VALUE,
 	//ACS_BIG_FLOAT_VALUE,
+	ACS_BIN_VALUE,
 	ACS_RAW_VALUE,
 } msgpack_unpack_state;
 
diff --git a/msgpack/unpack_template.h b/msgpack/unpack_template.h
index 63508e4..07fe1d8 100644
--- a/msgpack/unpack_template.h
+++ b/msgpack/unpack_template.h
@@ -204,9 +204,12 @@ msgpack_unpack_func(int, _execute)(msgpack_unpack_struct(_context)* ctx, const c
 					push_simple_value(_false);
 				case 0xc3:  // true
 					push_simple_value(_true);
-				//case 0xc4:
-				//case 0xc5:
-				//case 0xc6:
+				case 0xc4: // bin 8
+					again_fixed_trail(NEXT_CS(p), 1);
+				case 0xc5: // bin 16
+					again_fixed_trail(NEXT_CS(p), 2);
+				case 0xc6: // bin 32
+					again_fixed_trail(NEXT_CS(p), 4);
 				//case 0xc7:
 				//case 0xc8:
 				//case 0xc9:
@@ -291,6 +294,16 @@ msgpack_unpack_func(int, _execute)(msgpack_unpack_struct(_context)* ctx, const c
 			case CS_INT_64:
 				push_fixed_value(_int64, _msgpack_load64(int64_t,n));
 
+			case CS_BIN_8:
+				again_fixed_trail_if_zero(ACS_BIN_VALUE, *(uint8_t*)n, _bin_zero);
+			case CS_BIN_16:
+				again_fixed_trail_if_zero(ACS_BIN_VALUE, _msgpack_load16(uint16_t,n), _bin_zero);
+			case CS_BIN_32:
+				again_fixed_trail_if_zero(ACS_BIN_VALUE, _msgpack_load32(uint32_t,n), _bin_zero);
+			case ACS_BIN_VALUE:
+			_bin_zero:
+				push_variable_value(_bin, data, n, trail);
+
 			//case CS_
 			//case CS_
 			//case CS_BIG_INT_16:
diff --git a/msgpack_unpack.c b/msgpack_unpack.c
index 3bf2ac9..45701ba 100644
--- a/msgpack_unpack.c
+++ b/msgpack_unpack.c
@@ -509,6 +509,18 @@ int msgpack_unserialize_raw(
     return 0;
 }
 
+int msgpack_unserialize_bin(
+    msgpack_unserialize_data *unpack, const char* base,
+    const char* data, unsigned int len, zval **obj)
+{
+    MSGPACK_UNSERIALIZE_ALLOC_STACK(unpack);
+
+    ZVAL_STRINGL(*obj, (char *)data, len, 1);
+
+    return 0;
+}
+
+
 int msgpack_unserialize_array(
     msgpack_unserialize_data *unpack, unsigned int count, zval **obj)
 {
diff --git a/msgpack_unpack.h b/msgpack_unpack.h
index e140145..3239a27 100644
--- a/msgpack_unpack.h
+++ b/msgpack_unpack.h
@@ -60,6 +60,9 @@ int msgpack_unserialize_false(msgpack_unserialize_data *unpack, zval **obj);
 int msgpack_unserialize_raw(
     msgpack_unserialize_data *unpack, const char* base, const char* data,
     unsigned int len, zval **obj);
+int msgpack_unserialize_bin(
+    msgpack_unserialize_data *unpack, const char* base, const char* data,
+    unsigned int len, zval **obj);
 int msgpack_unserialize_array(
     msgpack_unserialize_data *unpack, unsigned int count, zval **obj);
 int msgpack_unserialize_array_item(
@@ -120,6 +123,8 @@ static inline msgpack_unpack_object template_callback_root(unpack_user* user)
     msgpack_unserialize_false(user, obj)
 #define template_callback_raw(user, base, data, len, obj) \
     msgpack_unserialize_raw(user, base, data, len, obj)
+#define template_callback_bin(user, base, data, len, obj) \
+    msgpack_unserialize_bin(user, base, data, len, obj)
 #define template_callback_array(user, count, obj) \
     msgpack_unserialize_array(user, count, obj)
 #define template_callback_array_item(user, container, obj) \
diff --git a/tests/138.phpt b/tests/138.phpt
new file mode 100644
index 0000000..f519c08
--- /dev/null
+++ b/tests/138.phpt
@@ -0,0 +1,36 @@
+--TEST--
+unpack bin format family
+--SKIPIF--
+<?php
+	if (version_compare(PHP_VERSION, '5.2.0') < 0) {
+		echo "skip tests in PHP 5.2 or newer";
+	}
+--FILE--
+<?php
+	if(!extension_loaded('msgpack')) {
+		dl('msgpack.' . PHP_SHLIB_SUFFIX);
+	}
+
+	$bin8_serialized = pack('H*', 'c40962696e382074657374');
+	$bin8_unserialized = msgpack_unpack($bin8_serialized);
+	var_dump($bin8_unserialized);
+	echo ($bin8_unserialized == "bin8 test") ?  "OK" : "FAILED", PHP_EOL;
+
+	$bin16_serialized = pack('H*', 'c5000a62696e31362074657374');
+	$bin16_unserialized = msgpack_unpack($bin16_serialized);
+	var_dump($bin16_unserialized);
+	echo ($bin16_unserialized == "bin16 test") ?  "OK" : "FAILED", PHP_EOL;
+
+
+	$bin32_serialized = pack('H*', 'c60000000a62696e33322074657374');
+	$bin32_unserialized = msgpack_unpack($bin32_serialized);
+	var_dump($bin32_unserialized);
+	echo ($bin32_unserialized == "bin32 test") ?  "OK" : "FAILED", PHP_EOL;
+?>
+--EXPECTF--
+string(9) "bin8 test"
+OK
+string(10) "bin16 test"
+OK
+string(10) "bin32 test"
+OK