From a827b9ce2fa46bf4e5c63f704fcab4563463174a Mon Sep 17 00:00:00 2001
From: Michael Wallner <mike@php.net>
Date: Wed, 29 Aug 2007 16:23:24 +0000
Subject: [PATCH] MFH: fix bug #11929

---
 http_functions.c           | 24 ++++++++++++++----------
 tests/negotiation_001.phpt |  7 +++++++
 2 files changed, 21 insertions(+), 10 deletions(-)

diff --git a/http_functions.c b/http_functions.c
index 2c849c1..d915b3f 100644
--- a/http_functions.c
+++ b/http_functions.c
@@ -148,6 +148,17 @@ PHP_FUNCTION(http_build_str)
 }
 /* }}} */
 
+#define HTTP_DO_NEGOTIATE_DEFAULT(supported) \
+	{ \
+		zval **value; \
+		 \
+		zend_hash_internal_pointer_reset(Z_ARRVAL_P(supported)); \
+		if (SUCCESS == zend_hash_get_current_data(Z_ARRVAL_P(supported), (void *) &value)) { \
+			RETVAL_ZVAL(*value, 1, 0); \
+		} else { \
+			RETVAL_NULL(); \
+		} \
+	}
 #define HTTP_DO_NEGOTIATE(type, supported, rs_array) \
 { \
 	HashTable *result; \
@@ -156,10 +167,10 @@ PHP_FUNCTION(http_build_str)
 		uint key_len; \
 		ulong idx; \
 		 \
-		if (HASH_KEY_IS_STRING == zend_hash_get_current_key_ex(result, &key, &key_len, &idx, 1, NULL)) { \
+		if (zend_hash_num_elements(result) && HASH_KEY_IS_STRING == zend_hash_get_current_key_ex(result, &key, &key_len, &idx, 1, NULL)) { \
 			RETVAL_STRINGL(key, key_len-1, 0); \
 		} else { \
-			RETVAL_NULL(); \
+			HTTP_DO_NEGOTIATE_DEFAULT(supported); \
 		} \
 		\
 		if (rs_array) { \
@@ -170,14 +181,7 @@ PHP_FUNCTION(http_build_str)
 		FREE_HASHTABLE(result); \
 		\
 	} else { \
-		zval **value; \
-		 \
-		zend_hash_internal_pointer_reset(Z_ARRVAL_P(supported)); \
-		if (SUCCESS == zend_hash_get_current_data(Z_ARRVAL_P(supported), (void *) &value)) { \
-			RETVAL_ZVAL(*value, 1, 0); \
-		} else { \
-			RETVAL_NULL(); \
-		} \
+		HTTP_DO_NEGOTIATE_DEFAULT(supported); \
 		\
 		if (rs_array) { \
 			HashPosition pos; \
diff --git a/tests/negotiation_001.phpt b/tests/negotiation_001.phpt
index d4b13ac..3641455 100644
--- a/tests/negotiation_001.phpt
+++ b/tests/negotiation_001.phpt
@@ -26,10 +26,14 @@ var_dump(http_negotiate_charset($csets[0]));
 var_dump(http_negotiate_charset($csets[0], $cresult));
 var_dump(http_negotiate_content_type($ctype[0]));
 var_dump(http_negotiate_content_type($ctype[0], $tresult));
+var_dump(http_negotiate_language(array("unknown")));
+var_dump(http_negotiate_charset(array("unknown")));
+var_dump(http_negotiate_content_type(array("unknown")));
 print_r($lresult);
 print_r($cresult);
 print_r($tresult);
 echo "Done\n";
+?>
 --EXPECTF--
 %sTEST
 string(2) "de"
@@ -38,6 +42,9 @@ string(10) "iso-8859-1"
 string(10) "iso-8859-1"
 string(21) "application/xhtml+xml"
 string(21) "application/xhtml+xml"
+string(7) "unknown"
+string(7) "unknown"
+string(7) "unknown"
 Array
 (
     [de] => 900
-- 
2.30.2