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Diffstat (limited to 'Zend/zend_exceptions.c')
-rw-r--r--Zend/zend_exceptions.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/Zend/zend_exceptions.c b/Zend/zend_exceptions.c
index 40248f7f5e..d1aa6fe9f1 100644
--- a/Zend/zend_exceptions.c
+++ b/Zend/zend_exceptions.c
@@ -36,7 +36,7 @@ ZEND_API void (*zend_throw_exception_hook)(zval *ex TSRMLS_DC);
void zend_exception_set_previous(zval *exception, zval *add_previous TSRMLS_DC)
{
- zval *previous;
+ zval *previous, *ancestor;
if (exception == add_previous || !add_previous || !exception) {
return;
@@ -45,6 +45,13 @@ void zend_exception_set_previous(zval *exception, zval *add_previous TSRMLS_DC)
zend_error(E_ERROR, "Cannot set non exception as previous exception");
return;
}
+ ancestor = zend_read_property(default_exception_ce, add_previous, "previous", sizeof("previous")-1, 1 TSRMLS_CC);
+ while (Z_TYPE_P(ancestor) == IS_OBJECT) {
+ if (Z_OBJ_HANDLE_P(ancestor) == Z_OBJ_HANDLE_P(exception)) {
+ return;
+ }
+ ancestor = zend_read_property(default_exception_ce, ancestor, "previous", sizeof("previous")-1, 1 TSRMLS_CC);
+ }
while (exception && exception != add_previous && Z_OBJ_HANDLE_P(exception) != Z_OBJ_HANDLE_P(add_previous)) {
previous = zend_read_property(default_exception_ce, exception, "previous", sizeof("previous")-1, 1 TSRMLS_CC);
if (Z_TYPE_P(previous) == IS_NULL) {