- if (index >= lbx->nfiles) {
- lbx_errno = LBX_ERANGE;
- return NULL;
- }
-
- base = lbx->offsets[index];
- *len = lbx->offsets[index+1] - lbx->offsets[index];
-
- if (lbx->mem)
- return lbx->mem + base;
-
- if (fstat(fileno(lbx->f), &statbuf) == -1) {
- lbx_errno = -errno;
- return NULL;
- }
-
- mapping = mmap(NULL, statbuf.st_size, PROT_READ, 0, fileno(lbx->f), 0);
- if (mapping == MAP_FAILED) {
- lbx_errno = -errno;
- return NULL;
- }
-
- lbx->mem = mapping;
- lbx->memsize = statbuf.st_size;
- return mapping + base;
-}
-
-void lbx_close(struct lbx_state *lbx)
-{
- if (!lbx) return;