static void
con3270_update_string(struct con3270 *cp, struct string *s, int nr)
{
- if (s->len >= cp->view.cols - 5)
+ if (s->len < 4) {
+ /* This indicates a bug, but printing a warning would
+ * cause a deadlock. */
+ return;
+ }
+ if (s->string[s->len - 4] != TO_RA)
return;
raw3270_buffer_address(cp->view.dev, s->string + s->len - 3,
cp->view.cols * (nr + 1));
cp->cline->len + 4 : cp->view.cols;
s = con3270_alloc_string(cp, size);
memcpy(s->string, cp->cline->string, cp->cline->len);
- if (s->len < cp->view.cols - 5) {
+ if (cp->cline->len < cp->view.cols - 5) {
s->string[s->len - 4] = TO_RA;
s->string[s->len - 1] = 0;
} else {