pos->base = mmap(NULL, pos->packet_size / CHAR_BIT, pos->prot,
pos->flags, pos->fd, pos->mmap_offset);
if (pos->base == MAP_FAILED) {
pos->base = mmap(NULL, pos->packet_size / CHAR_BIT, pos->prot,
pos->flags, pos->fd, pos->mmap_offset);
if (pos->base == MAP_FAILED) {