You may be able to get some joy simply using the strings(1) command, for example in my sendmail conf dir the access text file looks like: 

[root@mail]# cat access
# Check the /usr/share/doc/sendmail/README.cf file for a description
# of the format of this file. (search for access_db in that file)

localhost.localdomain           RELAY
localhost                       RELAY
127.0.0.1                       RELAY
[snip]

[download]

And using strings(1) on the access.db dbm file ( file(1) *may* tell you the type BTW) gets me back: 

[root@mail]# file access.db
access.db: Berkeley DB (Hash, version 7, native byte-order)

[root@mail]# strings access.db
RELAY
localhost.localdomain
RELAY
127.0.0.1
RELAY
localhost
[snip]
[root@mail]#

[download]

You may just luck out and find the data dumps out in a format you can parse back into shape with a few lines of perl. If not good luck.

cheers

tachyon

In reply to Re: Unwinding an (unknown type) DBM by tachyon
in thread Unwinding an (unknown type) DBM by mendicantMatt

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