From 682ffb59d5a9ffade60d23f8f7d6a8883645976d Mon Sep 17 00:00:00 2001
From: Ramana Kumar <ramana@member.fsf.org>
Date: Mon, 10 Oct 2022 23:28:29 +0100
Subject: [PATCH] Bring DllImport types and ckzg.c into alignment

---
 min-bindings/csharp/ckzg.c   |  7 ++++++-
 min-bindings/csharp/tests.cs | 12 ++++++------
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/min-bindings/csharp/ckzg.c b/min-bindings/csharp/ckzg.c
index a71a8d9..29d7e66 100644
--- a/min-bindings/csharp/ckzg.c
+++ b/min-bindings/csharp/ckzg.c
@@ -100,7 +100,12 @@ BLSFieldElement* evaluate_polynomial_wrap(const PolynomialEvalForm* p, const BLS
   return out;
 }
 
-void free_trusted_setup_wrap(KZGSettings* s) {
+void free_trusted_setup_wrap(KZGSettings *s) {
   free_trusted_setup(s);
   free(s);
 }
+
+void free_polynomial_wrap(PolynomialEvalForm *p) {
+  free_polynomial(p);
+  free(p);
+}
diff --git a/min-bindings/csharp/tests.cs b/min-bindings/csharp/tests.cs
index 3601b5b..ec7542a 100644
--- a/min-bindings/csharp/tests.cs
+++ b/min-bindings/csharp/tests.cs
@@ -7,19 +7,19 @@ using System.Runtime.InteropServices;
 class ckzg
 {
     [DllImport("ckzg.dll", EntryPoint = "bytes_to_bls_field_wrap")] // free result with free()
-    public static extern byte[] bytes_to_bls_field(byte[] bytes);
+    public static extern IntPtr bytes_to_bls_field(byte[] bytes);
 
     [DllImport("ckzg.dll", EntryPoint = "compute_powers_wrap")] // free result with free()
-    public static extern byte[] compute_powers(byte[] r, UInt64 n);
+    public static extern IntPtr compute_powers(IntPtr r, UInt64 n);
 
     [DllImport("ckzg.dll", EntryPoint = "vector_lincomb_wrap")] // free result with free_polynomial()
-    public static extern byte[] vector_lincomb(byte[] vectors, byte[] scalars, UInt64 num_vectors, UInt64 vector_len);
+    public static extern IntPtr vector_lincomb(byte[] vectors, IntPtr scalars, UInt64 num_vectors, UInt64 vector_len);
 
     [DllImport("ckzg.dll", EntryPoint = "g1_lincomb_wrap")] // free result with free()
-    public static extern byte[] g1_lincomb(byte[] points, byte[] scalars, UInt64 num_points);
+    public static extern IntPtr g1_lincomb(byte[] points, IntPtr scalars, UInt64 num_points);
 
     [DllImport("ckzg.dll", EntryPoint = "verify_kzg_proof_wrap")]
-    public static extern bool verify_kzg_proof(byte[] c, byte[] x, byte[] y, byte[] p, IntPtr ts);
+    public static extern int verify_kzg_proof(IntPtr c, IntPtr x, IntPtr y, byte[] p, IntPtr ts);
 
     [DllImport("ckzg.dll", EntryPoint = "evaluate_polynomial_wrap")] // free result with free()
     public static extern IntPtr evaluate_polynomial_in_evaluation_form(IntPtr p, IntPtr z, IntPtr ts);
@@ -30,7 +30,7 @@ class ckzg
     [DllImport("ckzg.dll", EntryPoint = "free_trusted_setup_wrap")]
     public static extern void free_trusted_setup(IntPtr ts);
 
-    [DllImport("ckzg.dll", EntryPoint = "free_polynomial")]
+    [DllImport("ckzg.dll", EntryPoint = "free_polynomial_wrap")]
     public static extern void free_polynomial(IntPtr p);
 
     [DllImport("ckzg.dll", EntryPoint = "free")]