From f95edc016b090bfe6494d5cffdd37315b7bb9d7c Mon Sep 17 00:00:00 2001
From: Zeev Suraski <zeev@php.net>
Date: Fri, 6 Aug 1999 15:24:10 +0000
Subject: Introduce call_user_func_ex()

---
 Zend/zend_API.h         |  1 +
 Zend/zend_execute_API.c | 49 ++++++++++++++++++++++++++++++++++++++++++++-----
 2 files changed, 45 insertions(+), 5 deletions(-)

(limited to 'Zend')

diff --git a/Zend/zend_API.h b/Zend/zend_API.h
index c8ba5e6715..2c0c69e831 100644
--- a/Zend/zend_API.h
+++ b/Zend/zend_API.h
@@ -112,6 +112,7 @@ ZEND_API int add_get_index_string(zval *arg, uint idx, char *str, void **dest, i
 ZEND_API int add_get_index_stringl(zval *arg, uint idx, char *str, uint length, void **dest, int duplicate);
 
 ZEND_API int call_user_function(HashTable *function_table, zval *object, zval *function_name, zval *retval, int param_count, zval *params[]);
+ZEND_API int call_user_function_ex(HashTable *function_table, zval *object, zval *function_name, zval *retval, int param_count, zval **params[], int no_separation);
 
 
 ZEND_API int add_property_long(zval *arg, char *key, long l);
diff --git a/Zend/zend_execute_API.c b/Zend/zend_execute_API.c
index 586249a345..267f566eb8 100644
--- a/Zend/zend_execute_API.c
+++ b/Zend/zend_execute_API.c
@@ -288,7 +288,23 @@ ZEND_API void zval_update_constant(zval *p)
 	}
 }
 
+
 int call_user_function(HashTable *function_table, zval *object, zval *function_name, zval *retval, int param_count, zval *params[])
+{
+	zval ***params_array = (zval ***) emalloc(sizeof(zval **)*param_count);
+	int i;
+	int ex_retval;
+
+	for (i=0; i<param_count; i++) {
+		params_array[i] = &params[i];
+	}
+	ex_retval = call_user_function_ex(function_table, object, function_name, retval, param_count, params_array, 1);
+	efree(params_array);
+	return ex_retval;
+}
+
+
+int call_user_function_ex(HashTable *function_table, zval *object, zval *function_name, zval *retval, int param_count, zval **params[], int no_separation)
 {
 	int i;
 	zval *original_return_value;
@@ -312,14 +328,37 @@ int call_user_function(HashTable *function_table, zval *object, zval *function_n
 		return FAILURE;
 	}
 
-
 	for (i=0; i<param_count; i++) {
 		zval *param;
 
-		param = (zval *) emalloc(sizeof(zval));
-		*param = *(params[i]);
-		INIT_PZVAL(param);
-		zval_copy_ctor(param);
+		if (function_state.function->common.arg_types
+			&& i<function_state.function->common.arg_types[0]
+			&& function_state.function->common.arg_types[i+1]==BYREF_FORCE
+			&& !PZVAL_IS_REF(*params[i])) {
+			if ((*params[i])->refcount>1) {
+				zval *new_zval;
+
+				if (no_separation) {
+					return FAILURE;
+				}
+				new_zval = (zval *) emalloc(sizeof(zval));
+				*new_zval = **params[i];
+				new_zval->refcount = 1;
+				new_zval->EA.locks = 0;
+				(*params[i])->refcount--;
+				*params[i] = new_zval;
+			}
+			(*params[i])->refcount++;
+			(*params[i])->EA.is_ref = 1;
+			param = *params[i];
+		} else if (*params[i] != &EG(uninitialized_zval)) {
+			(*params[i])->refcount++;
+			param = *params[i];
+		} else {
+			param = (zval *) emalloc(sizeof(zval));
+			*param = **(params[i]);
+			INIT_PZVAL(param);
+		}
 		zend_ptr_stack_push(&EG(argument_stack), param);
 	}
 
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