changes

早期freebsd实现

          divide      Divides the current numeric value by  its  argu-
                      ment.   This  could  be useful for building _s_c_a_n
                      format strings which print large  message  sizes
                      in "Kb" or "Mb".

          friendly    If the address  field  cannot  be  parsed,  this
                      function  will  return  the  text of the address
                      header, instead of a null string.

          szone       A flag indicating whether the timezone  was  ex-
                      plicit in the date string.

          _P_R_O_G_R_A_M _C_H_A_N_G_E_S

          In addition to the general changes mentioned above, many
          programs have specific new features added, either by new
          switches or by expanded functionality.  Each command's
          manual page gives complete information about its new
          options.  Here is a short summary.

          _U_s_e_r _I_n_t_e_r_f_a_c_e _P_r_o_g_r_a_m_s

          anno      Accepts a `-nodate' switch which inhibits the date



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          Changes for MH 6.7.0                                      18


                    annotation, leaving only the body annotation.

          folder    When invoked with the `-pack' switch and the new
                    `-verbose' switch, _f_o_l_d_e_r will give information
                    about the actions taken to renumber the folder.

                    On most systems, _f_o_l_d_e_r can now create any
                    non-existing parent folders of a new sub-folder.

          forw      When making digests, _f_o_r_w will put the issue and
                    volume numbers in addition to the digest list
                    name, in the digest trailer.

          inc       Detects NFS write failures, and will not zero your
                    maildrop in that event.

          msh       Supports a variant of the new _s_o_r_t_m.

          prompter  Considers a period on a line by itself to signify
                    end-of-file when the `-doteof' switch is speci-
                    fied.

          repl      The `-[no]format' switches have not been used
                    since _M_H 5 and have been deleted. _r_e_p_l will now
                    find filter files in the _M_H library area.

          scan      With the `-file msgbox' switch, _s_c_a_n can list a
                    _p_a_c_k_f'd-format file directly (without using _m_s_h).

                    Lists messages in reverse order with the
                    `-reverse' switch.  This should be considered a
                    bug.

          sortm     Now has the options: `-textfield field', `-notext-
                    field', `-limit days', and `-nolimit'.

                    With these options, _s_o_r_t_m can be instructed to
                    sort a folder based on the contents of an arbi-
                    trary header such as "subject".

                    _s_o_r_t_m minimizes renaming messages, and will no
                    longer arbitrarily pack folders; for this
                    behavior, use "folder -pack".

          whatnow   Deletes the draft by renaming it with leading
                    comma, instead of unlinking it.

          _M_H _S_u_p_p_o_r_t _P_r_o_g_r_a_m_s

          The following support programs also have changes or enhance-
          ments:

          mhl     Will now accept a format string  on  any  component,
                  not just on addresses and dates.



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          Changes for MH 6.7.0                                      19


          popd    Will use _s_h_a_d_o_w passwords if compiled with the SHA-
                  DOW option.  It can now also read UUCP-style mail-
                  drops directly.

          rcvtty  If given no arguments, _r_c_v_t_t_y will produce a scan
                  listing as specified by a format string or file; a
                  default format string is used if one is not speci-
                  fied.

                  Before the listing is written to the users terminal,
                  the terminal's bell is rung and a newline is output.
                  The `-nobell' and the `-nonewline' options inhibit
                  these functions.

                  _r_c_v_t_t_y will obey terminal write notification set by
                  _m_e_s_g.  With the `-biff' switch, _r_c_v_t_t_y will also
                  obey the mail notification status set by _b_i_f_f.

                  On BSD43 systems, as with _w_r_i_t_e, _r_c_v_t_t_y will be
                  installed set-group-id to the group "tty".

          slocal  Understands UUCP-style "From " lines and will write
                  output files using this format if appropriate.
                  Before invoking a delivery program, _s_l_o_c_a_l will
                  strip such lines unless compiled with the RPATHS
                  option, in which case it will will convert such
                  lines into "Return-Path:" headers.

                  _s_l_o_c_a_l has a new result code "N", for use in .mail-
                  delivery files.  With this result code, _s_l_o_c_a_l will
                  perform the action only if the message has not been
                  delivered and the previous action succeeded.  This
                  allows for performing an action only if multiple
                  conditions are true.

          _D_O_C_U_M_E_N_T_A_T_I_O_N

          Several of the older _M_H papers have been difficult to format
          because they depended on an older version of PhDTeX which
          was not supplied.  These papers have been updated, and some
          TeX library files are supplied in papers/doclib/, so that
          these papers may be generated on any system with TeX.

               Many of the manual pages have been revised to include
          documentation of new command options, and some have been
          expanded to give more detail.  All are now slightly refor-
          matted at installation time to make them more compatible
          with programs like _m_a_k_e_w_h_a_t_i_s.


          _M_H _A_D_M_I_N_I_S_T_R_A_T_I_O_N

          This section describes changes in configuring, compiling and
          installing _M_H 6.7 and should not be of interest to casual _M_H



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          Changes for MH 6.7.0                                      20


          users.  The READ-ME file has been considerably revised and
          expanded to give more detail about the configuration and
          compilation options which have been included in this
          release.  Some compilation options have been removed, and
          many new options have been added.

               All _M_H Makefiles have been updated to work around some
          incompatibilities introduced in newer versions of _m_a_k_e.  _M_H
          programs will no longer be installed with the sticky-bit
          turned on.

               Reading this section not a substitute for carefully
          reading the READ-ME file before attempting to compile _M_H


          _B_u_g _F_i_x_e_s

          Some bugs were fixed which in general were not user-visible:

          address parser  Fixed to allow use of the "AT"  domain,  and
                          some minor bugs were fixed pertaining to ad-
                          dress groups.

          date parser     Improved to accept  more  forms  of  illegal
                          dates.  Military timezones were removed.

          dynamic memory  Many problems with corruption of the dynamic
                          memory pool have been fixed.

          locking         Will open files for write, if  necessary  to
                          enable locking.

          nil pointers    All reported nil pointer problems have  been
                          fixed.

          replcomps       The "In-Reply-To:" header had  quotes  added
                          around the date field to comply with RFC822.

          _W_h_i_t_e _P_a_g_e_s

          If _M_H is compiled with the WP option, _s_e_n_d recognizes an
          address between "<<" and ">>" characters such as:

                  To: << rose -org psi >>

          to be a name meaningful to a whitepages service.  In order
          to expand the name, _s_e_n_d must be invoked interactively
          (i.e., not from _p_u_s_h).  For each name, _s_e_n_d will invoke a
          command called _f_r_e_d in a special mode asking to expand the
          name.

               To get a copy of the white pages service, contact
          [e-mail].




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          Changes for MH 6.7.0                                      21


          _C_o_n_f_i_g_u_r_a_t_i_o_n _O_p_t_i_o_n_s

          Some configuration options have been added or changed:

          cc          To specify an alternate C compiler.

          ccoptions   Defaults to `-O'.

          bboards     May now be defined as "on", "off", "pop", or
                      "nntp".

          bbdelivery  Determines whether the bboard delivery agent and
                      library files should be installed.

          lex         To specify an alternate version of _l_e_x.

          mailgroup   If defined, _i_n_c will be made set-group-id to
                      this group.

          sharedlib   For SUN40 systems; if "on", makes libmh.a into a
                      shared library.

          slibdir     The directory where the above shared library
                      should be installed.

          sprintf     Set this to "int" if that's what your
                      _s_p_r_i_n_t_f (3) library routine returns.

          _C_o_m_p_i_l_a_t_i_o_n _O_p_t_i_o_n_s

          For different configurations, several `-D' options to _c_c
          have been added or changed:

          BERK        This disables the address and date parsing rou-
                      tines.  If you want to do much with
                      _m_h-_f_o_r_m_a_t (5), don't enable this.

          BSD43       Will make _r_c_v_t_t_y set-group-id to the group
                      "tty".

          DBM         For sites with a dbm-style password file (such
                      as with Yellow Pages), _M_H will not read the
                      entire passwd file into a cache.  At one site
                      that runs YP on a large passwd file, using this
                      showed a 6:1 performance improvement.

          NETWORK     This option has been deleted.  See SOCKETS.

          NOIOCTLH    Tells _M_H not to include the file sys/ioctl.h.
                      Use this if this file is not present on your
                      system.

          NTOHLSWAP   On systems with TCP/IP networking, _m_s_h will try
                      to use the ntohl() macro from the file



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          Changes for MH 6.7.0                                      22


                      netinet/in.h to byte-swap the binary map files
                      it writes.

          SENDMAILBUG Some versions of _s_e_n_d_m_a_i_l return a 451 (failure)
                      reply code when they don't mean to indicate
                      failure.  This option considers that code to be
                      equivalent to 250 (OK).

          SHADOW      Causes _p_o_p_d to read the file /etc/shadow for
                      encrypted passwords instead of /etc/passwd.  Use
                      this if you have a shadow password file (such as
                      on newer versions of SYSTEM 5).

          SOCKETS     Enable this if you are on a non-BSD system with
                      a socket interface for TCP/IP networking compa-
                      tible with 4.2BSD UNIX.

          SUN40       Use on Suns running Sun OS 4.0 and later.

          SYS5        This option has been updated to refer to SYS5 R3
                      and later systems.

          SYS5DIR     Use this if your system uses "struct dirent"
                      instead of "struct direct".  This should be true
                      for systems based on SYS5 R3 and later.

          TYPESIG     Defines the base type for the _s_i_g_n_a_l system
                      call.  This defaults to "int", but should be
                      defined as "void" if appropriate for your sys-
                      tem.

          WP          Enables support for the White Pages service.

          _I_n_s_t_a_l_l_a_t_i_o_n

          _M_H will now explicitly set the protection mode on every file
          it installs.

               Previously any existing file installed by _M_H would be
          backed up into the source tree, and then overwritten.  Now,
          a few system-dependent files will not be overwritten, and
          your changes will have to be merged in by hand.  See the
          READ-ME file for more details.














                                 April 12, 1990