mh-changes.ms

早期freebsd实现

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.\" .EH ''Changes to MH 6.7'%'
.\" .OH ''Changes to MH 6.7'%'
.ds LH Changes to MH 6.8
.ds CH
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.TL
Changes to
.br
The RAND MH Message Handling System:
.br
UCI version MH 6.8
.AU
John L. Romine
.AI
Computing Support Group
Department of Information and Computer Science
University of California, Irvine
Irvine, CA  92717\-3425
[e-mail]
.AB
.PP
This document describes the changes to the
UCI version of the RAND MH system from MH 6.6
to this release of MH 6.8.
This document is meant to supplement,
not supersede,
the standard MH User's manual and MH Administrator's manual.
.PP
Comments concerning this documentation should be addressed to the
mailbox \fBBug\[e-mail]\fP, or \fBucbvax!ucivax!bug-mh\fP.
.AE
.SH
ACKNOWLEDGEMENTS
.LP
The \fIMH\fP system described herein is
based on the original RAND \fIMH\fP system.
It has been extensively developed (perhaps too much so) by Marshall T. Rose
and John L. Romine at the University of California, Irvine.
Einar A. Stefferud, Jerry N. Sweet,
and Terry P. Domae provided numerous suggestions
to improve the UCI version of \fIMH\fP.
.PP
Of course,
a large number of people have helped \fIMH\fP along.
The list of \*(lq\fIMH\fP immortals\*(rq is too long to list here.
For this release, numerous \fIMH\-Workers\fP sent in fixes and other
changes.  A handful of courageous \fIMH\-Workers\fP volunteered
to beta-test these changes; their help is particularly appreciated.
.KS
.SH
DISCLAIMER
.LP
The Regents of the University of California wish to make it known that:
.QP
Although each program has been tested by its contributor,
no warranty, express or implied,
is made by the contributor or the University of California,
as to the accuracy and functioning of the program
and related program material,
nor shall the fact of distribution constitute any such warranty,
and no responsibility is assumed by the contributor
or the University of California in connection herewith.
.KE
.KS
.SH
CONVENTIONS
.LP
In this document,
certain formatting conventions are adhered to:
.IP
The names of
\s-2UNIX\s+2
commands, such as \fIcomp\fP
are presented in \fIitalics\fP.
.IP
Arguments to programs, such as `msgs' and `\-nobell' are
delimited by single-quotes.
.IP
Text that should be typed exactly as-is, such as 
command lines (e.g., \*(lqfolder \-pack\*(rq),
are delimited by double-quotes.
.IP
\s-2UNIX\s+2
pathnames and envariables,
such as \fB/usr/uci\fP and \fB$SIGNATURE\fP,
are presented in \fBbold font\fP.
.KE
.ds LH Changes for MH 6.8.3
.bp
.SH 
CHANGES FOR MH 6.8.3
.LP
The MH 6.8.3 maintenance release contains few user-visible
changes.  Most of the changes are internal to the
multi-media display program \fImhn\fP to support
RFC 1521 (the new MIME standard).
This is the current version of MH as of December 1, 1993.
.SH 
Runtime Tailoring
.LP
When posting mail using the SMTP,
\fIpost\fP did not normally send the \fBHELO\fP command.  
This was because \fISendMail\fP would fail
if the host name given in the \fBHELO\fP command was the local host.
Later versions
of \fISendMail\fP will now complain if you omit the \fBHELO\fP
command.
.PP
As of MH 6.8.3a,
by default
\fIpost\fP will give the SMTP \fBHELO\fP command with
the local hostname.
If you specify a hostname with the \fBclientname:\fP option
in the \fImtstailor\fP file,
\fIpost\fP will give the \fBHELO\fP command with that name instead.
If the argument to the \fBclientname:\fP option is empty,
no \fBHELO\fP command is given.
See \fImh-tailor\fP\|(5) for more details.
.SH
User Interface Programs
.IP folder \w'msgchk'u+2n
The \fIfolder\fP command now has `\-create' and `\-nocreate'
options.  See \fIfolder\fP\|(1) for details.
.IP inc
A bug where `\-host' would not override the \fBpophost\fP
as set in the \fImtstailor\fP file has been fixed.
This bug was also fixed in \fImsgchk\fP.
.IP mhn
The \fImhn\fP command has several changes:
updates for conformance with RFC 1521,
addition of two caches: public and private,
addition of two caching policies: one for reading and one for writing,
support for storing multipart entities, and
a few bug fixes.  See \fImhn\fP\|(1) for complete details.
.SH
CHANGES FOR MH 6.8.2
.LP
The MH.6.8.2 patch release contains only
internal changes to support the BSD 4.4
and 386BSD versions of 
.SM
UNIX.
.NL
This version of \fIMH\fP 
was released August 25, 1993, but was not widely distributed.
.SH
CHANGES FOR MH 6.8.1
.LP
The MH.6.8.1 patch release is a maintenance
release.
This is the current released version of \fIMH\fP
as of August 20, 1993.
.PP
This release includes a small number
of bug fixes, a few minor enhancements, some changes
for the new MIME standard, and support for ESMTP (RFC 1425).
Support for BSD 4.4 and 386BSD is planned for the next
release.
.PP
Many other fixes which have already been received
are still being merged.
If you've sent an update for MH 6.8 to \[e-mail]\fP
and it isn't in this release,
it'll probably appear in the next release.
.SH
Fixes and Enhancements
.LP
Many minor documentation corrections were made.
There are also a few program changes:
.IP mhn \w'post'u+2n
The `\-cache\0policy', `\-\[no\]check', and `\-\[no\]pause'
switches have been added.   Some other minor changes have
been made to comply with the new MIME standard.
See \fImhn\fP\|(1) for complete details.
.IP post 
When posting mail with SendMail, \fIpost\fP will
not use the \fBONEX\fP command when it is posting 
a message with BCCs.
.IP scan
\fIscan\fP will now work with big width values.
.SH 
Format Strings
.LP
One new function has been added:
.IP "%(profile arg)" \w'XXprofileXargX'u+2n
This function looks up a component in the 
\fB\&.mh\(ruprofile\fR or \fBcontext\fP files
and returns the value of that component.
.SH
Configuration
.LP
Two new configuration options are present:
.IP GCOS_HACK \w'NORUSERPASS'u+2n
The so-called \*(lqgcos\*(rq field of the password file is 
used as a last resort
to find the user's full name (see \fImh-profile\fP\|(5) for details).
Enable this option
if your \fIpasswd\fP\|(5) man page notes that the `&'
character in the \*(lqgcos\*(rq field stands for the login name.
.IP NORUSERPASS
Tells \fIMH\fR that your system doesn't have the
\fIruserpass\fP\|(3) routine;
\fIMH\fR will include its own copy of this
routine in its library.
.ds LH Changes for MH 6.8
.bp
.ds CF December 14, 1992
.SH
CHANGES FOR MH 6.8
.LP
This is the current released version of \fIMH\fP
as of December 14, 1992.  This release includes a number
of bug fixes and internal changes to make the code more
portable.
Two new authentication methods are provided for the POP,
and support for SVR4 shared libraries is complete.
.PP
The major user-visible change in this release is the incorporation
of support for multi-media mail as specified by the
Multi-purpose Internet Mail Extensions (\fBMIME\fP)
RFC\ 1341.
This allows you to include things like audio,
graphics, and the like, in your mail messages.
A new command, \fImhn\fP, 
has been provided to support \fBMIME\fP and
a detailed man page is provided in \fImhn\fP\|(1).
.SH
Documentation
.LP
The documentation has some general improvements, and
the \fBREAD-ME\fP document has been re-organized
to help \fIMH\fP administrators find the appropriate
configuration options for their system.
The \fBMakefile\fPs in the \fBpapers/\fP hierarchy have
been changed to invoke \fITeX\fP as
\*(lqtex\*(rq (instead of \*(lqtex82\*(rq).
.LP
The following new man pages are also available:
.IP \fImhn\fP\|(1) \w'\fIpopauth\fP\|(8)'u+2n
\fImhn\fP helps the user process multi-media mail.
.IP \fImhparam\fP\|(1)
\fImhparam\fP lets the user extract information from 
the \fIMH\fP profile.
.IP \fIpopauth\fP\|(8)
the APOP database administration program (see below).
.IP \fIpopi\fP\|(1)
the POP initiator (see below).
.IP \fIslocal\fP\|(1)
fully documents \fIslocal\fP.  The \fImhook\fP(1) man page now
documents only the \fIMH\fP receive-mail hooks.
.SH
Internal Changes
.LP
The \fIMH\fP source code is in the process of being
cleaned up to make pedantic ANSI C compilers happy.
Occurrences of \*(lqNULL\*(rq have been replaced by
\*(lq0\*(rq where appropriate.
Extra tokens after \*(lq#else\*(rq and \*(lq#endif\*(rq
have been put inside comments (this is still in progress).
The code should now compile cleanly on many more systems,
specifically, more variants of SVR4.
.PP
The version of \fBtws/dtimep.c\fP which was included in 
MH 6.7.2 was incompatible with the \fIlex\fP library
on some systems, and has been removed.
.PP
A bug in the handling of blind lists inside alias
files has been fixed.
.KS
.SH
Post Office Protocol
.LP
There were three new options added to the POP.
.IP APOP \w'APOP'u+2n
This option indicates that the POP daemon will
support the non-standard \fBAPOP\fP command which
provides a challenge-based authentication system using
the \fBMD5\fP message digest algorithm.
.IP
This option also causes the
\fIpopauth\fP program to be installed, which
allows the administrator to manipulate the \fBAPOP\fP
authorization database.
.KE
.IP KPOP
Support for KERBEROS with POP.
This code builds
\fIpopd\fP, \fIinc\fP and \fImsgchk\fP to support only the 
\*(lqkpop\*(rq protocol.
This code is still expiremental, but is available for 
those sites wishing to test it.
.IP MPOP
This option indicates that the POP daemon will
support the non-standard
\fBXTND SCAN\fP command which provides performance
enhancements when using the POP over low-speed connections.
.IP
This option also causes an interactive POP
client program, \fIpopi\fP, to be compiled and installed.
A man page for the \fIpopi\fP program is also provided.
This option requires the configuration to
have \*(lqbboards: pop\*(rq.
.LP
The APOP and MPOP non-standard POP
facilities are documented in
\fIThe Internet Message\fR (ISBN 0\-13\-092941\-7),
a book by Marshall T. Rose.
For more details, see \fBsupport/pop/pop-more.txt\fR
and the \fIAdministrator's Guide\fP.
The APOP option peacefully co-exists with the standard POP,
KPOP completely replaces the standard POP, and
MPOP requires \*(lqbboards: pop\*(rq.
.SH
File Locking
.LP
The file locking code has been cleaned up to support
three kinds of kernel-level file locking.  As appropriate
for your system, include the
LOCKF, FCNTL or FLOCK option.  For more
details, see \fImh-tailor\fP\|(5).
.SH
.KS
Configuration Directives
.LP
A number of new configuration directives have been added
or changed.  The full details are given in the \fBREAD-ME\fP.
.IP cp: \w'MAILGROUP'u+2n
The command used to install new files if not \*(lqcp\*(rq.
.IP ln:
The command used to link files together in the source tree
if not \*(lqln\*(rq.
.IP mts:
Full support for ZMAILER has been added.
.IP popdir:
The directory where \fIpopd\fP will be installed if not \fB/usr/etc\fP.
.IP regtest:
Set to \*(lqon\*(rq to prevent the hostname and compile
date from being included in \fIMH\fP binaries.
.IP sharedlib:
You may now specify \*(lqsun4\*(rq or \*(lqsys5\*(rq 
(for SVR4) shared libraries.
.IP signal:
Specifies the base type of the function returned by \fIsignal\fP\|().
This was previously defined with \*(lqoptions TYPESIG\*(rq.
.KE
.LP
Several `-D' options to \fIcc\fP have been added or changed:
.IP APOP \w'MAILGROUP'u+2n
Authenticated POP (see above).
.IP AUX 
Support for A/UX systems.
.IP DBMPWD
The DBM option has been renamed DBMPWD.
.IP HESIOD
Support for the HESIOD name server.
.IP KPOP
KERBEROS POP (see above).
.IP LOCALE
Support for local characters sets; uses the \fIsetlocal\fP\|() function.
.IP MAILGROUP
Makes \fIinc\fP set-group-id.
You may need this option if your \fB/usr/spool/mail\fP
is not world-writeable.
.IP MIME
Multi-media mail.