Add plumbing for SetEnv workaround

src/asherah.cc

@@ -38,6 +38,7 @@ class Asherah : public Napi::Addon<Asherah> {
                            &Asherah::SetSafetyPaddingOverhead),
             InstanceMethod("get_setup_status", &Asherah::GetSetupStatus),
             InstanceMethod("set_log_hook", &Asherah::SetLogHook),
+            InstanceMethod("setenv", &Asherah::SetEnv),
         });
   }
 
@@ -409,6 +410,22 @@ class Asherah : public Napi::Addon<Asherah> {
     }
   }
 
+  void SetEnv(const Napi::CallbackInfo &info) {
+    Napi::Env env = info.Env();
+    Napi::HandleScope scope(env);
+    try {
+      NapiUtils::RequireParameterCount(info, 1);
+      CobhanBufferNapi env_json(env, info[0]);
+      ::SetEnv(env_json);
+    } catch (Napi::Error &e) {
+      e.ThrowAsJavaScriptException();
+      return;
+    } catch (const std::exception &e) {
+      Napi::Error::New(env, e.what()).ThrowAsJavaScriptException();
+      return;
+    }
+  }
+
   void SetMaxStackAllocItemSize(const Napi::CallbackInfo &info) {
     Napi::Env env = info.Env();
     Napi::HandleScope scope(env);

src/asherah.d.ts

@@ -60,3 +60,4 @@ export declare function set_max_stack_alloc_item_size(max_item_size: number): vo
 export declare function set_safety_padding_overhead(safety_padding_overhead: number): void;
 export declare function set_log_hook(logHook: LogHookCallback): void;
 export declare function get_setup_status(): boolean;
+export declare function setenv(environment: string): void;

test/asherah.ts

@@ -14,7 +14,8 @@ import {
     shutdown_async,
     get_setup_status,
     set_max_stack_alloc_item_size,
-    set_log_hook
+    set_log_hook,
+    setenv
 } from '../dist/asherah'
 
 import { assert } from 'chai';
@@ -92,6 +93,11 @@ export async function asherah_setup_static_memory_async(verbose = false, session
     }
 }
 
+export async function asherah_set_env(): Promise<void> {
+    const myString = '{"VAR": "VAL"}';
+    setenv(myString);
+}
+
 export function asherah_shutdown(): void {
     shutdown();
 }