if (tdb->flags & TDB_NOMMAP)
return;
- tdb->file->map_ptr = mmap(NULL, tdb->file->map_size, tdb->mmap_flags,
- MAP_SHARED, tdb->file->fd, 0);
+ /* size_t can be smaller than off_t. */
+ if ((size_t)tdb->file->map_size == tdb->file->map_size) {
+ tdb->file->map_ptr = mmap(NULL, tdb->file->map_size,
+ tdb->mmap_flags,
+ MAP_SHARED, tdb->file->fd, 0);
+ } else
+ tdb->file->map_ptr = MAP_FAILED;
/*
* NB. When mmap fails it returns MAP_FAILED *NOT* NULL !!!!
/* Endian conversion: we only ever deal with 8 byte quantities */
void *tdb_convert(const struct tdb_context *tdb, void *buf, tdb_len_t size)
{
+ assert(size % 8 == 0);
if (unlikely((tdb->flags & TDB_CONVERT)) && buf) {
uint64_t i, *p = (uint64_t *)buf;
for (i = 0; i < size / 8; i++)