Polyfill DNS constants

packages/php-wasm/compile/php/dns_polyfill.c

@@ -2,6 +2,7 @@
 #include "php.h"
 #include "php_network.h"
 #include "zend_API.h"
+#include "zend_constants.h"
 #include "dns_polyfill.h"
 
 #ifdef HAVE_SYS_SOCKET_H
@@ -271,3 +272,24 @@ PHP_FUNCTION(dns_get_mx)
     RETURN_FALSE;
 }
 /* }}} */
+
+/* {{{ Polyfill the constants, as PHP won't load them. */
+void register_dns_polyfill_symbols(int module_number)
+{
+	REGISTER_LONG_CONSTANT("DNS_A", PHP_DNS_A, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_NS", PHP_DNS_NS, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_CNAME", PHP_DNS_CNAME, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_SOA", PHP_DNS_SOA, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_PTR", PHP_DNS_PTR, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_HINFO", PHP_DNS_HINFO, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_CAA", PHP_DNS_CAA, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_MX", PHP_DNS_MX, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_TXT", PHP_DNS_TXT, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_SRV", PHP_DNS_SRV, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_NAPTR", PHP_DNS_NAPTR, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_AAAA", PHP_DNS_AAAA, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_A6", PHP_DNS_A6, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_ANY", PHP_DNS_ANY, CONST_PERSISTENT);
+	REGISTER_LONG_CONSTANT("DNS_ALL", PHP_DNS_ALL, CONST_PERSISTENT);
+}
+/* }}} */

packages/php-wasm/compile/php/dns_polyfill.h

@@ -30,4 +30,6 @@ ZEND_END_ARG_INFO()
 
 PHP_FUNCTION(dns_get_mx);
 
+void register_dns_polyfill_symbols(int module_number);
+
 #endif // PHP_WASM_DNS_POLYFILL_H

packages/php-wasm/compile/php/php_wasm.c

@@ -1498,6 +1498,9 @@ int php_wasm_init()
 		php_wasm_sapi_module.php_ini_path_override = phpini_path_override;
 	}
 
+	/* Register the DNS Polyfill symbols */
+	register_dns_polyfill_symbols(0);
+
 	php_sapi_started = 1;
 	php_wasm_sapi_module.additional_functions = additional_functions;
 	if (php_wasm_sapi_module.startup(&php_wasm_sapi_module) == FAILURE)

packages/php-wasm/node/public/php_8_3.js

@@ -1,6 +1,6 @@
 const dependencyFilename = __dirname + '/8_3_0/php_8_3.wasm'; 
 export { dependencyFilename }; 
-export const dependenciesTotalSize = 15331346; 
+export const dependenciesTotalSize = 15331281; 
 export function init(RuntimeName, PHPLoader) {
     /**
      * Overrides Emscripten's default ExitStatus object which gets

packages/php-wasm/node/src/test/php.spec.ts

@@ -196,6 +196,14 @@ describe.each(SupportedPHPVersions)('PHP %s', (phpVersion) => {
 			});
 			expect(result.text).toEqual('bool(false)\n');
 		});
+		it('DNS_* constants should exist', async () => {
+			const result = await php.run({
+				code: `<?php
+				var_dump(defined('DNS_NS'));
+			`,
+			});
+			expect(result.text).toEqual('bool(true)\n');
+		});
 	});
 
 	describe('popen()', () => {