changes include:
* Check every fetch operation for success
* documented the fact that mailsync is not really fit for concurrent
mailbox access
* extended loging
* reengineering - clearer naming of variables (I hope)
- int msgno -> unsigned long msgno (as in c-client)
- functions and variables that return/contain only true/false
are now booleans
* do not copy deleted mails
* documented list mode
* list mode can display contents of mailboxes
* more docu
* reordered code to make it more coherent (IMHO)
* various functions (fetch_mail_ids, tdc_mail_open) had too many crucial
side effects which made the code very hard to follow. Untangled that.
* closing a stream before writing in it (c-client logic!) so that new
messages are not marked as seen. That means, that mutt users should be
happy(er?) now.
* more explicit and consistent error messages, more sensible debug output
* documented the code and renamed stuff so that it makes sense
* messages-ids are sanitized and saved in RFC822 format only.
* warnings about spaces in the message id are now optional, see the "-bd"
option
* fixed a bug that occured when files were copied over but could not be saved
for some reason
Mailsync is a way of synchronizing a collection of mailboxes. The algorithm is
a 3-way diff. Two mailboxes are simultaneously compared to a record of the
state of both mailboxes at last sync. New messages and message deletions are
propagated between the two mailboxes. If you're familiar with CVS, it's the
same principle, except there's no opportunity for conflicts.
XXX: could be buildlinked for imap-uw; will take a look later
Fixes pkg/16757 by MarkoSchuetz@web.de
