cmd: add remote arg

issue #2

src/tools/buffer.c

@@ -21,8 +21,8 @@ Buffer* buffer_create(size_t capacity) {
 void buffer_append(Buffer* buffer, const char* str) {
     LOG_DEBUG("Entering function %s", __func__);
     size_t len = strlen(str);
-    if (buffer->size + len >= buffer->capacity) {
-        buffer->capacity = buffer->size + len;
+    while (buffer->size + len >= buffer->capacity) {
+        buffer->capacity *= 2;
         buffer->data = (char*)cdo_realloc(buffer->data, buffer->capacity);
     }
     strcpy(buffer->data + buffer->size, str);