TCP_USER_TIMEOUT expects unsigned integer

Author: lucasnetau

ext/sockets/sockets.c

@@ -2329,6 +2329,22 @@ PHP_FUNCTION(socket_set_option)
 		}
 #endif
 
+#if defined(TCP_USER_TIMEOUT)
+		case TCP_USER_TIMEOUT: {
+			ov = zval_get_long(arg4);
+
+			// TCP_USER_TIMEOUT unsigned int
+			if (ov < 0 || ov > UINT_MAX) {
+				zend_argument_value_error(4, "must be of between 0 and %u", UINT_MAX);
+				RETURN_FALSE;
+			}
+
+			optlen = sizeof(ov);
+			opt_ptr = &ov;
+			break;
+		}
+#endif
+
 #if defined(UDP_SEGMENT)
 		case UDP_SEGMENT: {
 			ov = zval_get_long(arg4);

ext/sockets/tests/socket_setoption_tcpusertimeout.phpt

@@ -0,0 +1,33 @@
+--TEST--
+Test if socket_set_option() works, option:SO_SNDTIMEO
+--EXTENSIONS--
+sockets
+--SKIPIF--
+<?php
+if (!defined('TCP_USER_TIMEOUT')) { die('skip TCP_USER_TIMEOUT is not defined'); }
+?>
+--FILE--
+<?php
+$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
+if (!$socket) {
+        die('Unable to create AF_INET socket [socket]');
+}
+socket_set_block($socket);
+
+try {
+	socket_setopt($src, SOL_TCP, TCP_USER_TIMEOUT, -1);
+} catch (\ValueError $e) {
+	echo $e->getMessage(), PHP_EOL;
+}
+
+$timeout = 200;
+$retval_2 = socket_set_option( $socket, SOL_TCP, TCP_USER_TIMEOUT, $timeout);
+$retval_3 = socket_get_option( $socket, SOL_TCP, TCP_USER_TIMEOUT);
+var_dump($retval_2);
+var_dump($retval_3 === $timeout);
+socket_close($socket);
+?>
+--EXPECT--
+socket_setopt(): Argument #4 ($value) must be of between 0 and %d
+bool(true)
+bool(true)