Fixing #187 for string marshalling

Author: CoreyKaylor

src/LightningDB/LightningDB.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <Description>LightningDB</Description>
-    <VersionPrefix>0.19.0</VersionPrefix>
+    <VersionPrefix>0.19.1</VersionPrefix>
     <Authors>Ilya Lukyanov;Corey Kaylor</Authors>
     <TargetFrameworks>netstandard2.0;net9.0</TargetFrameworks>
     <LangVersion>13</LangVersion>

src/LightningDB/Native/Lmdb.cs

@@ -697,7 +697,7 @@ public static extern MDBResultCode mdb_env_open(nint env, byte[] path, Environme
         internal static MDBResultCode mdb_env_open(nint env, string path, EnvironmentOpenFlags flags,
             UnixAccessMode mode)
         {
-            var bytes = System.Text.Encoding.UTF8.GetBytes(path);
+            var bytes = System.Text.Encoding.UTF8.GetBytes(path + "\0");
             return mdb_env_open(env, bytes, flags, mode);
         }
 
@@ -949,7 +949,7 @@ internal static MDBResultCode mdb_env_open(nint env, string path, EnvironmentOpe
         /// <returns>A result code indicating success or failure</returns>
         public static MDBResultCode mdb_env_copy(nint env, string path)
         {
-            var bytes = System.Text.Encoding.UTF8.GetBytes(path);
+            var bytes = System.Text.Encoding.UTF8.GetBytes(path + "\0");
             return mdb_env_copy(env, bytes);
         }
 
@@ -991,7 +991,7 @@ public static MDBResultCode mdb_env_copy(nint env, string path)
         /// <returns>A result code indicating success or failure</returns>
         public static MDBResultCode mdb_env_copy2(nint env, string path, EnvironmentCopyFlags copyFlags)
         {
-            var bytes = System.Text.Encoding.UTF8.GetBytes(path);
+            var bytes = System.Text.Encoding.UTF8.GetBytes(path + "\0");
             return mdb_env_copy2(env, bytes, copyFlags);
         }