Fix #231

platforms/app/main.c

@@ -263,7 +263,9 @@ M3Result repl_call  (const char* name, int argc, const char* argv[])
     if (!strcmp(name, "_start")) {
 #if defined(LINK_WASI)
         // Strip wasm file path
-        argv[0] = modname_from_fn(argv[0]);
+        if (argc > 0) {
+            argv[0] = modname_from_fn(argv[0]);
+        }
 
         m3_wasi_context_t* wasi_ctx = m3_GetWasiContext();
         wasi_ctx->argc = argc;

source/m3_api_libc.c

@@ -179,8 +179,11 @@ m3ApiRawFunction(m3_libc_printf)
 m3ApiRawFunction(m3_libc_clock_ms)
 {
     m3ApiReturnType (uint32_t)
-
+#ifdef CLOCKS_PER_SEC
     m3ApiReturn(clock() / (CLOCKS_PER_SEC/1000));
+#else
+    m3ApiReturn(clock());
+#endif
 }
 
 static

source/m3_api_wasi.c

@@ -359,6 +359,12 @@ m3ApiRawFunction(m3_wasi_generic_fd_fdstat_get)
 #endif // APE
 
     fdstat->fs_rights_base = (uint64_t)-1; // all rights
+
+    // Make descriptors 0,1,2 look like a TTY
+    if (fd <= 2) {
+        fdstat->fs_rights_base &= ~(__WASI_RIGHTS_FD_SEEK | __WASI_RIGHTS_FD_TELL);
+    }
+
     fdstat->fs_rights_inheriting = (uint64_t)-1; // all rights
     m3ApiReturn(__WASI_ERRNO_SUCCESS);
 #endif