return _lbx_fextract(lbx, base, len, of);
}
-void *lbx_mmap(struct lbx_state *lbx, size_t index, size_t *len)
-{
- unsigned char *mapping;
- struct stat statbuf;
- size_t base;
-
- 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;
-}
-
int lbx_close(struct lbx_state *lbx)
{
int rc = 0;
if (!lbx)
return 0;
- if (lbx->f) {
+ if (lbx->f)
rc = fclose(lbx->f);
- if (lbx->mem) {
- munmap(lbx->mem, lbx->memsize);
- }
- }
free(lbx);
return rc;