fix(runtime): the wasm host serves the luau blob's remaining wasi imports (#14320) 9ba30dbad9
* fix(runtime): the wasm host serves the Luau blob's environ and fd_close wasi imports

* fix(runtime): environ_sizes_get checks both output pointers before writing

Co-authored-by: Luigi Rosso <luigi-rosso@users.noreply.github.com>

.rive_head

diff --git a/.rive_head b/.rive_head
index 3efaad0..d8a5f5c 100644
--- a/.rive_head
+++ b/.rive_head
@@ -1 +1 @@
-4c824e6f05d23dfc0c9d22d7496c33a782ccc366
+9ba30dbad9fc35646bff0b61f6a7e47f87091ab6

src/wasm/wasm_scripting_vm.cpp

diff --git a/src/wasm/wasm_scripting_vm.cpp b/src/wasm/wasm_scripting_vm.cpp
index 6a7ceb3..7d920a1 100644
--- a/src/wasm/wasm_scripting_vm.cpp
+++ b/src/wasm/wasm_scripting_vm.cpp
@@ -1034,9 +1034,34 @@
     return 70; // WASI ESPIPE
 }
 
+// The blob's libc asks for the environment at start and closes its streams
+// at exit; there is no environment and the streams are the log.
+uint32_t environSizesGet(wasm_exec_env_t env, uint32_t* count, uint32_t* size)
+{
+    wasm_module_inst_t inst = wasm_runtime_get_module_inst(env);
+    if (!wasm_runtime_validate_native_addr(inst, count, 4) ||
+        !wasm_runtime_validate_native_addr(inst, size, 4))
+    {
+        return 21; // WASI EFAULT
+    }
+    *count = 0;
+    *size = 0;
+    return 0;
+}
+
+uint32_t environGet(wasm_exec_env_t env, uint32_t* environ, char* buffer)
+{
+    return 0;
+}
+
+uint32_t fdClose(wasm_exec_env_t env, uint32_t fd) { return 0; }
+
 NativeSymbol kWasiNatives[] = {
     {"fd_write", (void*)fdWrite, "(i*i*)i", nullptr},
     {"fd_seek", (void*)fdSeek, "(iiiii)i", nullptr},
+    {"environ_sizes_get", (void*)environSizesGet, "(**)i", nullptr},
+    {"environ_get", (void*)environGet, "(**)i", nullptr},
+    {"fd_close", (void*)fdClose, "(i)i", nullptr},
 };
 
 // --- rive_path/paint/renderer_v1: handle-backed render objects --------------