c-client mail_parameters() functions

The following parameters are in the IMAP-3.6 toolkit:

GET_DRIVERS
 (DRIVER *) list of all lunk mail drivers

GET_GETS / SET_GETS
 (mailgets_t) if non-zero, has routine to get a string from a stream; zero to
	read entirely into fs_get() buffer.  See mm_gets().

GET_CACHE / SET_CACHE
 (mailcache_t) c-client cache management routine.  See mm_cache().

GET_USERNAME / SET_USERNAME
 (char *) user name

GET_HOMEDIR / SET_HOMEDIR
 (char *) home directory

GET_LOCALHOST / SET_LOCALHOST
 (char *) local host name

GET_SYSINBOX / SET_SYSINBOX
 (char *) system inbox (/usr/spool/mail/????????)

GET_OPENTIMEOUT / SET_OPENTIMEOUT
 (long) number of seconds before open timeout.  Mac only.

GET_READTIMEOUT / SET_READTIMEOUT
 (long) number of seconds before read timeout.  Not in Waterloo or TOPS-20.

GET_WRITETIMEOUT / SET_WRITETIMEOUT
 (long) number of seconds before write timeout.  Not in Waterloo or TOPS-20.

GET_CLOSETIMEOUT / SET_CLOSETIMEOUT
 (long) number of seconds before close timeout.  Mac only.

GET_TIMEOUT / SET_TIMEOUT
 (tcptimeout_t) routine to be called on a TCP timeout

GET_MAXLOGINTRIALS / SET_MAXLOGINTRIALS
 (long) number of failed login attempts permitted before punting (this is in
	the client; servers may have their own limit)

GET_LOOKAHEAD / SET_LOOKAHEAD
 (long) number of envelopes/UIDs to do an advance lookahead prefetch in
	mail_fetchstructure(), mail_uid().

GET_IMAPPORT / SET_IMAPPORT
 (long) IMAP TCP contact port

GET_PREFETCH / SET_PREFETCH
 (long) non-zero if SEARCH should prefetch envelopes of matching messages

GET_LOGINFULLNAME / SET_LOGINFULLNAME
 (long) non-zero if mm_login should be given the full mailbox name instead of
	just the host name

GET_CLOSEONERROR / SET_CLOSEONERROR
 (long) non-zero if SELECT or EXAMINE failure should close the stream
	(otherwise it is left half-open so it can be used on a retry)

GET_POP3PORT / SET_POP3PORT
 (long) POP3 TCP contact port

GET_MBXPROTECTION / SET_MBXPROTECTION
 (long) default protection of new mailbox files

GET_LOCKPROTECTION / SET_LOCKPROTECTION
 (long) default protection of new lock files

GET_FROMWIDGET / SET_FROMWIDGET
 (long) non-zero if ">" to be inserted in front of all "From " lines, zero to
	to use smart algorithm

GET_NEWSACTIVE / SET_NEWSACTIVE
 (char *) news active file name

GET_NEWSSPOOL / SET_NEWSSPOOL
 (char *) news spool directory

GET_NEWSRC / SET_NEWSRC
 (char *) news state file name

GET_EXTENSION / SET_EXTENSION
 (char *) file extension for mail on DOS

GET_DISABLEFCNTLLOCK / SET_DISABLEFCNTLLOCK
 (long) non-zero if flock() disabled (SVR4 only)

GET_LOCKEACCESERROR / SET_LOCKEACCESERROR
 (long) non-zero if EACCES error on lock file reports an error


The following parameters are new in the IMAP-4 toolkit:

ENABLE_DRIVER / DISABLE_DRIVER
 (DRIVER *) driver to enable or disable

GET_KERBEROS_V4 / SET_KERBEROS_V4
 (auth_t) routine to do Kerberos authentication

GET_GSSAPI / SET_GSSAPI
 (auth_t) routine to do GSSAPI authentication

GET_SKEY / SET_SKEY
 (auth_t) routine to do S/Key authentication

GET_DIRPROTECTION / SET_DIRPROTECTION
 (long) default new directory protection

GET_LISTMAXLEVEL / SET_LISTMAXLEVEL
 (long) maximum level of LIST directory recursion with * wildcard

GET_NNTPPORT / SET_NNTPPORT
 (long) NNTP TCP contact port