protocol: cleanup unused code

Author: tsl0922

src/protocol.c

@@ -258,14 +258,7 @@ int callback_tty(struct lws *wsi, enum lws_callback_reasons reason, void *user,
       switch (command) {
         case INPUT:
           if (server->readonly) break;
-
-          char *data = xmalloc(pss->len - 1);
-          memcpy(data, pss->buffer + 1, pss->len - 1);
-
-          uv_write_t *req = xmalloc(sizeof(uv_write_t));
-          req->data = data;
-
-          int err = pty_write(pss->process, pty_buf_init(data, pss->len - 1));
+          int err = pty_write(pss->process, pty_buf_init(pss->buffer + 1, pss->len - 1));
           if (err) {
             lwsl_err("uv_write: %s (%s)\n", uv_err_name(err), uv_strerror(err));
             return -1;

src/pty.c

@@ -136,7 +136,10 @@ void pty_resume(pty_process *process) {
 }
 
 int pty_write(pty_process *process, pty_buf_t *buf) {
-  if (process == NULL) return UV_ESRCH;
+  if (process == NULL) {
+    pty_buf_free(buf);
+    return UV_ESRCH;
+  }
   pty_io_t *io = process->io;
   uv_buf_t b = uv_buf_init(buf->base, buf->len);
   uv_write_t *req = xmalloc(sizeof(uv_write_t));