slapcat segfaults in certain backglue setups (ITS#2924)

[rhafer@suse.de]

Full_Name: Ralf Haferkamp
Version: 2.1.25, 2.2.4
OS: SUSE Linux 
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (212.95.106.42)


When I use an back-ldap database as a subordinate of some bdb- of ldbm-
Database. slapcat will segfault after the contents of the bdb/ldbm Database have
been dumped.
I was not able to produce a reasonable backtrace yet, but it seems to crash in
backglue.c inside the glue_tool_entry_first function when trying to call
be_entry_open
for back-ldap (which does for good reasons not provide the function).

Wouldn't it be good to completely ignore the subordinate stuff when operating
with the slaptools?