diff --git a/binding/exported-functions.txt b/binding/exported-functions.txt
index 0caaf32..deff335 100644
--- a/binding/exported-functions.txt
+++ b/binding/exported-functions.txt
@@ -1,5 +1,6 @@
 _free
 _malloc
+_xmlCleanupInputCallbacks
 _xmlCtxtReadFile
 _xmlCtxtReadMemory
 _xmlCtxtSetErrorHandler
@@ -14,6 +15,7 @@ _xmlNewDocComment
 _xmlNewDocText
 _xmlNewParserCtxt
 _xmlNodeGetContent
+_xmlRegisterInputCallbacks
 _xmlRelaxNGFree
 _xmlRelaxNGFreeParserCtxt
 _xmlRelaxNGFreeValidCtxt
diff --git a/src/libxml2.mts b/src/libxml2.mts
index 2eee271..268592e 100644
--- a/src/libxml2.mts
+++ b/src/libxml2.mts
@@ -1,3 +1,5 @@
+import { assert } from 'console';
+import { openSync, readSync, closeSync } from 'fs';
 import type {
     CString,
     Pointer,
@@ -293,6 +295,33 @@ export class XmlErrorStruct {
     static col = getValueFunc(40, 'i32');
 }
 
+const matchFunc = (filename: CString) => { console.log(`match called for ${filename}`); return 1; };
+const openFunc = (filename: CString) => {
+    console.log(`Opening ${filename}`);
+    return openSync(moveUtf8ToString(filename), 'r');
+};
+const readFunc = (ctx: Pointer, buf: Pointer, len: number) => {
+    console.log(`reading from ${ctx} with ${buf}`);
+    return readSync(ctx, buf as unknown as Uint8Array, 0, len, null);
+};
+const closeFunc = (ctx: Pointer) => {
+    console.log(`closing ${ctx}`);
+    closeSync(ctx);
+    return 0;
+};
+
+function registerInputCallbacks(): void {
+    console.log('Registering callbacks');
+    const regResult = libxml2._xmlRegisterInputCallbacks(
+        matchFunc,
+        openFunc,
+        readFunc,
+        closeFunc,
+    );
+    assert(regResult !== -1, 'registerInputCallbacks failed');
+    console.log(`Registered callbacks ${regResult}`);
+}
+
 export const xmlCtxtSetErrorHandler = libxml2._xmlCtxtSetErrorHandler;
 export const xmlDocGetRootElement = libxml2._xmlDocGetRootElement;
 export const xmlFreeDoc = libxml2._xmlFreeDoc;
@@ -325,3 +354,6 @@ export const xmlXPathFreeContext = libxml2._xmlXPathFreeContext;
 export const xmlXPathFreeObject = libxml2._xmlXPathFreeObject;
 export const xmlXPathNewContext = libxml2._xmlXPathNewContext;
 export const xmlXPathSetContextNode = libxml2._xmlXPathSetContextNode;
+
+registerInputCallbacks();
+registerInputCallbacks();
diff --git a/src/libxml2raw.d.ts b/src/libxml2raw.d.ts
index 3a934f2..8e6b879 100644
--- a/src/libxml2raw.d.ts
+++ b/src/libxml2raw.d.ts
@@ -25,6 +25,7 @@ export class LibXml2 {
     _free(memblock: Pointer): void;
     _malloc(size: number): Pointer;
 
+    _xmlCleanupInputCallbacks(): void;
     _xmlCtxtReadFile(
         ctxt: XmlParserCtxtPtr,
         filename: CString,
@@ -53,6 +54,12 @@ export class LibXml2 {
     _xmlNewDoc(): XmlDocPtr;
     _xmlNewParserCtxt(): XmlParserCtxtPtr;
     _xmlNodeGetContent(node: XmlNodePtr): CString;
+    _xmlRegisterInputCallbacks(
+        xmlInputMatchCallback: (filename: CString) => number,
+        xmlInputOpenCallback: (filename: CString) => Pointer,
+        xmlInputReadCallback: (ctx: Pointer, buffer: Pointer, length: number) => number,
+        xmlInputCloseCallback: (ctx: Pointer) => number,
+    ): number;
     _xmlRelaxNGFree(schema: XmlRelaxNGPtr): void;
     _xmlRelaxNGFreeParserCtxt(ctxt: XmlRelaxNGParserCtxtPtr): void;
     _xmlRelaxNGFreeValidCtxt(ctxt: XmlRelaxNGValidCtxtPtr): void;