Add validate function and test

lib/runtime-c-api/src/lib.rs

@@ -85,6 +85,17 @@ pub struct wasmer_limits_t {
     pub max: uint32_t,
 }
 
+#[allow(clippy::cast_ptr_alignment)]
+#[no_mangle]
+pub unsafe extern "C" fn wasmer_validate(wasm_bytes: *mut uint8_t, wasm_bytes_len: uint32_t) -> bool {
+    if wasm_bytes.is_null() {
+        return false;
+    }
+    let bytes: &[u8] =
+        unsafe { ::std::slice::from_raw_parts_mut(wasm_bytes, wasm_bytes_len as usize) };
+    wasmer_runtime_core::validate(bytes)
+}
+
 #[no_mangle]
 pub extern "C" fn wasmer_import_object_new() -> *mut wasmer_import_object_t {
     Box::into_raw(Box::new(ImportObject::new())) as *mut wasmer_import_object_t

lib/runtime-c-api/tests/.gitignore

@@ -12,4 +12,5 @@ _deps
 test-instantiate
 test-import-function
 test-memory
+test-validate
 rust-build

lib/runtime-c-api/tests/CMakeLists.txt

@@ -4,6 +4,7 @@ project (WasmerCApiTests)
 add_executable(test-instantiate test-instantiate.c)
 add_executable(test-import-function test-import-function.c)
 add_executable(test-memory test-memory.c)
+add_executable(test-validate test-validate.c)
 
 find_library(
         WASMER_LIB NAMES libwasmer_runtime_c_api.dylib libwasmer_runtime_c_api.so libwasmer_runtime_c_api.dll
@@ -20,9 +21,12 @@ target_link_libraries(test-import-function
                 general ${WASMER_LIB})
 target_link_libraries(test-memory
         general ${WASMER_LIB})
+target_link_libraries(test-validate
+        general ${WASMER_LIB})
 
 enable_testing()
 add_test(test-instantiate test-instantiate)
 add_test(test-import-function test-import-function)
 add_test(test-memory test-memory)
+add_test(test-validate test-validate)
 

lib/runtime-c-api/tests/test-validate.c

@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include "../wasmer.h"
+#include <assert.h>
+#include <stdint.h>
+
+int main()
+{
+    // Read the wasm file bytes
+    FILE *file = fopen("sum.wasm", "r");
+    fseek(file, 0, SEEK_END);
+    long len = ftell(file);
+    uint8_t *bytes = malloc(len);
+    fseek(file, 0, SEEK_SET);
+    fread(bytes, 1, len, file);
+    fclose(file);
+
+    bool result = wasmer_validate(bytes, len);
+    printf("Result: %d", result);
+    assert(result);
+
+    return 0;
+}

lib/runtime-c-api/wasmer.h

@@ -87,3 +87,5 @@ void wasmer_memory_destroy(wasmer_memory_t *memory);
 uint32_t wasmer_memory_length(wasmer_memory_t *memory);
 
 wasmer_memory_result_t wasmer_memory_new(wasmer_memory_t **memory, wasmer_limits_t limits);
+
+bool wasmer_validate(uint8_t *wasm_bytes, uint32_t wasm_bytes_len);

lib/runtime-c-api/wasmer.hh

@@ -88,4 +88,6 @@ uint32_t wasmer_memory_length(wasmer_memory_t *memory);
 
 wasmer_memory_result_t wasmer_memory_new(wasmer_memory_t **memory, wasmer_limits_t limits);
 
+bool wasmer_validate(uint8_t *wasm_bytes, uint32_t wasm_bytes_len);
+
 } // extern "C"