some progress on dos vesa, but not quite

Common/str.h

@@ -24,12 +24,19 @@ typedef struct com_str {
   uint32_t len;
   uint32_t flags;
   char data[] __attribute__((aligned(COM_DEF_ALIGNMENT)));
-
 } com_str;
 
 /* NOTE: Have to be moved to static or global memory. */
 #define com_str_lit(p_l) {NULL, sizeof(p_l) - 1, COM_STR_NULL_TERMINATED, (p_l)}
 
+static inline void com_str_copy_to_mem(struct com_str *s, char *to,
+                                       bool withnull) {
+  for (int i = 0; i < s->len; ++i)
+    to[i] = s->data[i];
+  if (withnull)
+    to[s->len] = '\0';
+}
+
 static inline uint32_t com_str_ext_len(char const *s) {
   char const *p = s;
   for (; *p != 0; ++p) {