Function splitbuf_grow

src/env.c:289–297

Expand SS so that it has at least one more argv slot and at least one more string byte. */

/* Expand SS so that it has at least one more argv slot and at least
   one more string byte.  */
static void
splitbuf_grow (struct splitbuf *ss)
{
  idx_t old_half_alloc = ss->half_alloc;
  idx_t string_bytes = (intptr_t) ss->argv[ss->argc];
  ss->argv = xpalloc (ss->argv, &ss->half_alloc, 1,
                      MIN (INT_MAX, IDX_MAX), 2 * sizeof *ss->argv);
  memmove (ss->argv + ss->half_alloc, ss->argv + old_half_alloc, string_bytes);
}

/* In SS, append C to the last string.  */
static void