(ITS#7073) zero-length entries should be allowed

Full_Name: Howard Chu Version: 2.4 OS: Linux URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (76.94.188.8) Submitted by: hyc

entry_header() rejects "entries" that have zero attributes. As it turns out, overlays like pcache and translucent can create such entries in their normal operation. With back-bdb/hdb, such entries will work OK while slapd is running, because they're in the entry cache. But after a restart, such entries can't be read back from the DB because they're considered invalid by entry_header().

Already fixed in master, entry_header() now allows zero length entries.