From a6754fe7d81a80d2e6ac99a6b608e6f2b5cda366 Mon Sep 17 00:00:00 2001
From: Dmitry Volyntsev <xeioex@nginx.com>
Date: Wed, 4 Oct 2023 15:00:02 -0700
Subject: [PATCH] XML: fixed exception handling.

This closes #675 issue on Github.
---
 external/njs_xml_module.c | 2 +-
 src/test/njs_unit_test.c  | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/external/njs_xml_module.c b/external/njs_xml_module.c
index 2b374501..ae440632 100644
--- a/external/njs_xml_module.c
+++ b/external/njs_xml_module.c
@@ -2000,7 +2000,7 @@ njs_xml_error(njs_vm_t *vm, njs_xml_doc_t *current, const char *fmt, ...)
                         err->int2);
     }
 
-    njs_vm_error(vm, "%s", p - errstr, errstr);
+    njs_vm_error(vm, "%*s", p - errstr, errstr);
 }
 
 
diff --git a/src/test/njs_unit_test.c b/src/test/njs_unit_test.c
index 1078f763..18541204 100644
--- a/src/test/njs_unit_test.c
+++ b/src/test/njs_unit_test.c
@@ -22034,6 +22034,10 @@ static njs_unit_test_t  njs_xml_test[] =
               " doc.root.$tags$.length]"),
       njs_str("FOO,BAR,0,2") },
 
+    { njs_str("const xml = require('xml');"
+              "let doc = xml.parse(`GARBAGE`)"),
+      njs_str("Error: failed to parse XML (libxml2: \"Start tag expected, '<' not found\" at 1:1)") },
+
     { njs_str("const xml = require('xml');"
               "let doc = xml.parse(`<r><a></a>TEXT</r>`);"
               "doc.r.$text"),
-- 
2.47.3