1 files changed, 39 insertions, 0 deletions
diff --git a/engine_api.c b/engine_api.c
new file mode 100644
index 0000000..05cfe15
--- /dev/null
+++ b/engine_api.c
@@ -0,0 +1,39 @@
+#include "engine_api.h"
+
+#include "engine_hooks.h"  // for ddtrace_backup_error_handling
+
+int ddtrace_call_sandboxed_function(const char *name, size_t name_len, zval **retval, int argc,
+                                    zval **argv[] TSRMLS_DC) {
+    zval *fname;
+    MAKE_STD_ZVAL(fname);
+    ZVAL_STRINGL(fname, name, name_len, 1);
+    zend_fcall_info fci;
+    zend_fcall_info_cache fcc;
+
+    // Play it safe if an exception has not been handled yet
+    if (EG(exception)) {
+        return FAILURE;
+    }
+
+    ddtrace_error_handling eh;
+    ddtrace_backup_error_handling(&eh, EH_SUPPRESS TSRMLS_CC);
+
+    int result = zend_fcall_info_init(fname, IS_CALLABLE_CHECK_SILENT, &fci, &fcc, NULL, NULL TSRMLS_CC);
+    if (result == SUCCESS) {
+        fci.retval_ptr_ptr = retval;
+        fci.params = argv;
+        fci.no_separation = 0;  // allow for by-ref args
+        fci.param_count = argc;
+        result = zend_call_function(&fci, &fcc TSRMLS_CC);
+    }
+
+    ddtrace_restore_error_handling(&eh TSRMLS_CC);
+
+    if (EG(exception)) {
+        zend_clear_exception(TSRMLS_C);
+    }
+
+    zval_dtor(fname);
+    efree(fname);
+    return result;
+}