Usenet 1994 October/usenetsourcesnewsgroupsinfomagicoctober1994disk2.iso/unix/volume24/elm2.3patches/part02

Text File | 1991-03-05 | 31KB | 1,021 lines

Subject:  v24i026:  Elm mail system, release 2.3, patches, Part02/11
Newsgroups: comp.sources.unix
Approved: [e-mail]
X-Checksum-Snefru: 36676cb3 03f70437 d87989de 9eb22187

Submitted-by: Syd Weinstein <[e-mail]>
Posting-number: Volume 24, Issue 26
Archive-name: elm2.3patches/part02

Subject: elm 2.3 Patch #2
Summary: This is an official patch for elm 2.3 system.  Please apply it.
Priority: MEDIUM

More of the release cleanup, more to come still...

Update install to update test prompts for alias current message
From: Syd

Some wait system calls return with -1 and errno=4 (interrupted system call) when the
editor is invoked, suspended, and then resumed.  Loop until wait returns pid, or
returns -1 *if errno != EINTR*.  If wait returns -1 and errno = EINTR, we wait again.
Some flock()s refuse to exclusively lock a fd open for read-only access.
From: [e-mail] (Paul Close)

Use a close-on-exec pipe to diagnose exec() failures.
From: tct![e-mail] (Chip Salzenberg)

Allow use of submit with mmdf instead of sendmail stub
From: martin <[e-mail]>

Fix:    From rn, say "| patch -p -N -d DIR", where DIR is your elm source
    directory.  Outside of rn, say "cd DIR; patch -p -N <thisarticle".
    If you don't have the patch program, apply the following by hand,
    or get patch (version 2.0, latest patchlevel).

    After patching:
        sh Configure -d
        make
        make install

    If patch indicates that patchlevel is the wrong version, you may need
    to apply one or more previous patches, or the patch may already
    have been applied.  See the patchlevel.h file to find out what has or
    has not been applied.  In any event, don't continue with the patch.

    If you are missing previous patches they can be obtained from our:
    archive server.

    Syd Weinstein
    [e-mail]

    The patches are available from the dsinc archive server
    Send the following message to [e-mail] for
    a list of available patches:

    Subject: patch list
    send index elm

Index: hdrs/patchlevel.h
Prereq: 1
*** ../elm2.3/hdrs/patchlevel.h    Tue Jun  5 22:02:31 1990
--- hdrs/patchlevel.h    Sat Jun  9 21:18:04 1990
***************
*** 1 ****
! #define PATCHLEVEL 1
--- 1 ----
! #define PATCHLEVEL 2

Index: Instruct
*** ../elm2.3/Instruct    Sat Apr 28 22:40:44 1990
--- Instruct    Sat Jun  9 21:17:13 1990
***************
*** 1,7 ****
                  Instructions
                  ------------

!                 Last Update: $Date: 90/04/28 22:40:43 $


      This file contains instructions on how to create and install
--- 1,7 ----
                  Instructions
                  ------------

!                 Last Update: $Date: 90/06/09 21:17:05 $


      This file contains instructions on how to create and install
***************
*** 72,80 ****
      $ elm -f test/test.mail

  should read in EIGHT messages from various people.  While here, try to
! A)lias C)urrent message for each of the eight messages to confirm that
! the reply/address system is working okay.  Now Q)uit without having
! marked anything for deletion...answer the questions accordingly.

  If you get this far you're in wonderful shape!  In fact, you're done!

--- 72,81 ----
      $ elm -f test/test.mail

  should read in EIGHT messages from various people.  While here, try to
! A)lias, A)lias current message for each of the eight messages to
! confirm that the reply/address system is working okay.  Now Q)uit
! without having marked anything for deletion...answer the questions
! accordingly.

  If you get this far you're in wonderful shape!  In fact, you're done!

***************
*** 106,114 ****

  That's it!
  ----------
-
-     Author's address:    [e-mail]
-                 hplabs!taylor

    This document and the entire mail system is

--- 107,112 ----

Index: Configure
Prereq: 4.1.1.1
*** ../elm2.3/Configure    Tue Jun  5 22:02:33 1990
--- Configure    Sat Jun  9 23:25:30 1990
***************
*** 8,14 ****
  # and edit it to reflect your system.  Some packages may include samples
  # of config.h for certain machines, so you might look for one of those.)
  #
! # $Header: /files/home/users/syd/elm.rel/RCS/Configure,v 4.1.1.1 90/05/31 20:46:41 syd Exp $
  #
  # Yes, you may rip this off to use in other distribution packages.
  # (Note: this Configure script was generated automatically.  Rather than
--- 8,14 ----
  # and edit it to reflect your system.  Some packages may include samples
  # of config.h for certain machines, so you might look for one of those.)
  #
! # $Header: /files/home/users/syd/elm.rel/RCS/Configure,v 4.1.1.4 90/06/09 23:24:59 syd Exp $
  #
  # Yes, you may rip this off to use in other distribution packages.
  # (Note: this Configure script was generated automatically.  Rather than
***************
*** 110,115 ****
--- 110,116 ----
  sendmail=''
  shar=''
  smail=''
+ submit=''
  tbl=''
  troff=''
  nroff=''
***************
*** 257,263 ****
  attrlist="$attrlist i186 __m88k__ m88k DGUX __DGUX__"
  d_newshome="/usr/NeWS"
  defvoidused=7
! pth="/usr/ucb /bin /usr/bin /usr/local /usr/local/bin /usr/lbin /usr/plx /usr/5bin /vol/local/bin /etc /usr/lib /lib /usr/local/lib /sys5.3/bin /sys5.3/usr/bin /bsd4.3/bin /bsd4.3/usr/bin /bsd4.3/usr/ucb /usr/convex"

  : check for out bin directory
  if test ! -d ../bin; then
--- 258,264 ----
  attrlist="$attrlist i186 __m88k__ m88k DGUX __DGUX__"
  d_newshome="/usr/NeWS"
  defvoidused=7
! pth="/usr/ucb /bin /usr/bin /usr/local /usr/local/bin /usr/lbin /usr/plx /usr/5bin /vol/local/bin /etc /usr/lib /lib /usr/local/lib /sys5.3/bin /sys5.3/usr/bin /bsd4.3/bin /bsd4.3/usr/bin /bsd4.3/usr/ucb /usr/convex /usr/mmdf/bin"

  : check for out bin directory
  if test ! -d ../bin; then
***************
*** 526,531 ****
--- 527,533 ----
  sendmail
  shar
  smail
+ submit
  tar
  tbl
  test
***************
*** 2323,2332 ****
      fi
  fi

  : determine mail delivery agent for Elm to use
  case "$mailer" in
  '')
!     if $test -f "$sendmail"; then
      dflt="$sendmail"
      elif $test -f "$rmail"; then
      dflt="$rmail"
--- 2325,2360 ----
      fi
  fi

+ case "$d_mmdf" in
+ "$define") dflt=y;;
+ "$undef")  dflt=n;;
+ *)    if $test -f "$submit"; then
+         dflt=y
+     fi
+     ;;
+ esac
+ $cat <<EOM
+
+ Some systems run MMDF as their Mail Transport Agent.  MMDF uses
+ a different way of delimiting messages in the mailbox files.
+ Usually this is a series of four Control A's.  $package needs to know
+ if this system uses MMDF.
+
+ EOM
+ rp="Does this system use MMDF as its MTA? [$dflt]"
+ $echo $n "$rp $c"
+ . myread
+ case "$ans" in
+ y*) d_mmdf="$define";;
+ *)  d_mmdf="$undef";;
+ esac
+
  : determine mail delivery agent for Elm to use
  case "$mailer" in
  '')
!     if $test "$d_mmdf" = "$define" -a -f "$submit"; then
!     dflt="$submit"
!     elif $test -f "$sendmail"; then
      dflt="$sendmail"
      elif $test -f "$rmail"; then
      dflt="$rmail"
***************
*** 2367,2372 ****
--- 2395,2403 ----
  if $test "$mailer" != "$sendmail"; then
      sendmail=''
  fi
+ if $test "$mailer" != "$submit"; then
+     submit=''
+ fi

  : check for internet mailer
  case "$d_internet" in
***************
*** 2374,2379 ****
--- 2405,2412 ----
  "$undef")    dflt=n;;
  *)    if $test -f "$sendmail"; then
          dflt=y
+     elif $test -f "$submit"; then
+         dflt=y
      elif $test -f "$smail"; then
          dflt=y
      else
***************
*** 2421,2447 ****
  set mkdir d_mkdir
  eval $inlibc

- case "$d_mmdf" in
- "$define") dflt=y;;
- "$undef")  dflt=n;;
- *)    dflt=n;;
- esac
- $cat <<EOM
-
- Some systems run MMDF as their Mail Transport Agent.  MMDF uses
- a different way of delimiting messages in the mailbox files.
- Usually this is a series of four Control A's.  $package needs to know
- if this system uses MMDF.
-
- EOM
- rp="Does this system use MMDF as its MTA? [$dflt]"
- $echo $n "$rp $c"
- . myread
- case "$ans" in
- y*) d_mmdf="$define";;
- *)  d_mmdf="$undef";;
- esac
-
  : ask about newmail running in the background automatically
  case "$d_newauto" in
  "$define")    dflt=y;;
--- 2454,2459 ----
***************
*** 2510,2515 ****
--- 2522,2532 ----
      d_noaddfrom="$define"
      d_nocheckvalid="$define"
      d_usedomain="$undef"
+ elif $test -f "$submit"; then
+     echo "You're running submit with MMDF.  Setting noaddfrom, nocheckvalid, usedomain"
+     d_noaddfrom="$undef"
+     d_nocheckvalid="$define"
+     d_usedomain="$define"
  else
      case "$d_nocheckvalid" in
      "$define") dflt=n;;
***************
*** 2519,2525 ****

      $cat << EOM

! Since you're not running sendmail, should I check local user entered
  addresses against the valid mailboxes on this system?
  EOM

--- 2536,2542 ----

      $cat << EOM

! Since you're not running sendmail or submit, should I check local user entered
  addresses against the valid mailboxes on this system?
  EOM

***************
*** 3144,3149 ****
--- 3161,3169 ----
  elif $contains 'void.*signal' $$.tmp >/dev/null 2>&1 ; then
      echo "You have void (*signal())() instead of int."
      d_voidsig="$define"
+ elif $contains 'extern.*signal' $$.tmp >/dev/null 2>&1 ; then
+     echo "You have int (*signal())() instead of void."
+     d_voidsig="$undef"
  elif $test -n "$d_voidsig"; then
      echo $n "As you already told me, signal handlers return "
      if $test "$d_voidsig" = "$define"; then
***************
*** 3153,3159 ****
      fi
  else
      echo "I can't determine whether signal handlers return void or int..."
!     echo "I'm assuming they return void like ANSI and POSIX want"
      d_voidsig="$define"
  fi
  rm -f $$.tmp
--- 3173,3181 ----
      fi
  else
      echo "I can't determine whether signal handlers return void or int..."
!     echo "I'm assuming they return void like ANSI and POSIX want."
!     echo "If not, you will have to change d_voidsig from $define to $undef"
!     echo "in config.sh at the edit question at the end of Configure"
      d_voidsig="$define"
  fi
  rm -f $$.tmp
***************
*** 3788,3793 ****
--- 3810,3816 ----
  sendmail='$sendmail'
  shar='$shar'
  smail='$smail'
+ submit='$submit'
  tbl='$tbl'
  troff='$troff'
  nroff='$nroff'


Index: Patchlist
*** ../elm2.3/Patchlist    Sat Apr 28 22:40:57 1990
--- Patchlist    Sat Jun  9 23:00:32 1990
***************
*** 1,3 ****
! This file will contain the date and comment header from each
! official patch as issued.  Since this is the full new release,
! there are currently no patches.
--- 1,67 ----
!     Elm 2.3 Patch 2 - Release cleanup - Part II
!     Sat Jun  9 22:59:02 EDT 1990 (Creation date, not posting date)
! Update install to update test prompts for alias current message
! From: Syd
!
! Some wait system calls return with -1 and errno=4 (interrupted system call) when the
! editor is invoked, suspended, and then resumed.  Loop until wait returns pid, or
! returns -1 *if errno != EINTR*.  If wait returns -1 and errno = EINTR, we wait again.
! Some flock()s refuse to exclusively lock a fd open for read-only access.
! From: [e-mail] (Paul Close)
!
! Use a close-on-exec pipe to diagnose exec() failures.
! From: tct![e-mail] (Chip Salzenberg)
!
! Allow use of submit with mmdf instead of sendmail stub
! From: martin <[e-mail]>
!
!     Elm 2.3 Patch 1 - Release cleanup - Part I
!     Tue Jun  5 22:25:25 EDT 1990 (Creation date, not posting date)
! Fixed Metaconfig prototype for voidsig, the test was backwards
! (had a -z where a -n should have been)
! From: Syd
!
! The open system call in actions.c for EMERGENCY_MAILBOX and EMER_MBOX
! were tested with the inequality >= 0 exactly backwards.
! If the user's system mail box (/usr/spool/mail/user_id) is
! removed the attempt of filter to flock it fails.  If it does not exist then
! it should create it and then lock it.
! From: [e-mail] (John Franks)
!
! Allow nesting on () in comment in address
! From: Chip Rosenthal <[e-mail]>
!
! Fix boundary condition in add_name_to_list() where it fails to
! print error message.
! From: Chip Rosenthal <[e-mail]>
!
! Fixes the 'g' Group Reply command to send to the cc list also.
! A bad variable name caused it to be ignored.
! From: [e-mail] (Chip Rosenthal)
!
! Fixes when ALLOW_SUBSHELL #define'd and you are in the
! Message Header Edit Screen and the mail you just composed
! is not a reply THEN the subshell command is executed.
! From: [e-mail] (Alexios Zavras)
!
! Fixes where src/curses.c attempts to set the screen size via the ioctl
! TIOCGWINSIZ if it exsists. It should only use the row or col size as
! returned from the ioctl if they are not 0.
! From: [e-mail] (Keith Muller)
!
! alias command in ELM2.3 fails because of the wrong sized aliases.hash
! newalias did not truncate existing file (aliases.hash)
! From: Toshinori Maeno <[e-mail]>
!
! Fix htonl() double define problems
! From: Syd
!
! Fix aliases.hash.tmp being over 14 chars and causing rename problems
! on a 14 character limit system.
! From: Syd
!
! Fix now spurious error message for alias recursive expansion
! when alias lookup is on a string over 20 chars long.  If that
! long, its just not an alias, so just return.
! From: Syd
!


Index: doc/Ref.guide
Prereq: 4.1
*** ../elm2.3/doc/Ref.guide    Sat Apr 28 22:41:15 1990
--- doc/Ref.guide    Sat Jun  9 22:49:53 1990
***************
*** 1,4 ****
! .\" @(#)$Id: Ref.guide,v 4.1 90/04/28 22:41:08 syd Exp $
  .\"
  .\"  Reference guide to the Elm mail system.
  .\"  format with
--- 1,4 ----
! .\" @(#)$Id: Ref.guide,v 4.1.1.1 90/06/09 22:49:11 syd Exp $
  .\"
  .\"  Reference guide to the Elm mail system.
  .\"  format with
***************
*** 12,17 ****
--- 12,21 ----
  .\"  (C) Copyright 1988, 1989, 1990 Usenet Community Trust
  .\"
  .\"  $Log:    Ref.guide,v $
+ .\" Revision 4.1.1.1  90/06/09  22:49:11  syd
+ .\" Droped obsolete control Q command from list
+ .\" From: Joe Wasik
+ .\"
  .\" Revision 4.1  90/04/28  22:41:08  syd
  .\" checkin of Elm 2.3 as of Release PL0
  .\"
***************
*** 438,444 ****
  If on, this tells \f2elm\f1 that you have an HP terminal and enables
  the <NEXT>, <PREV>, <HOME> and <SHIFT-HOME> keys.  (The default is OFF.)

! .lp menus* 1.0i
  If turned off, this will inhibit the Menu display on all of the
  screen displays within the \f2elm\f1 program.  (Note that this is
  overridden by the similar `-m' command line option,
--- 442,448 ----
  If on, this tells \f2elm\f1 that you have an HP terminal and enables
  the <NEXT>, <PREV>, <HOME> and <SHIFT-HOME> keys.  (The default is OFF.)

! .lp menu* 1.0i
  If turned off, this will inhibit the Menu display on all of the
  screen displays within the \f2elm\f1 program.  (Note that this is
  overridden by the similar `-m' command line option,

Index: doc/Users.guide
Prereq: 4.1
*** ../elm2.3/doc/Users.guide    Sat Apr 28 22:41:20 1990
--- doc/Users.guide    Sat Jun  9 22:50:05 1990
***************
*** 1,4 ****
! .\" @(#)$Id: Users.guide,v 4.1 90/04/28 22:41:16 syd Exp $
  .\"
  .\"  Users guide to the ELM mail system.
  .\"  format with:
--- 1,4 ----
! .\" @(#)$Id: Users.guide,v 4.1.1.1 90/06/09 22:49:54 syd Exp $
  .\"
  .\"  Users guide to the ELM mail system.
  .\"  format with:
***************
*** 12,17 ****
--- 12,21 ----
  .\"  (C) Copyright 1988, 1989, 1990 Usenet Community Trust
  .\"
  .\"  $Log:    Users.guide,v $
+ .\" Revision 4.1.1.1  90/06/09  22:49:54  syd
+ .\" Droped obsolete control Q command from list
+ .\" From: Joe Wasik
+ .\"
  .\" Revision 4.1  90/04/28  22:41:16  syd
  .\" checkin of Elm 2.3 as of Release PL0
  .\"
***************
*** 506,513 ****
  Quit \(em maybe prompting for messages to delete, store, or keep.
  .lp \h'18p'Q 90p
  Quick quit \(em like quit but without prompting.
- .lp \h'18p'<control>-Q 90p
- Exit immediately \(em don't record as read, don't save...
  .lp \h'18p'r 90p
  Reply to the author of current message.
  .lp \h'18p's 90p
--- 510,515 ----

Index: hdrs/sysdefs.SH
Prereq: 4.1
*** ../elm2.3/hdrs/sysdefs.SH    Sat Apr 28 22:42:15 1990
--- hdrs/sysdefs.SH    Sat Jun  9 22:28:43 1990
***************
*** 12,20 ****
  esac
  echo "Extracting hdrs/sysdefs.h (with variable substitutions)"
  sed <<!GROK!THIS! >sysdefs.h -e 's!^#undef!/\*#undef!'
! /* $Id: sysdefs.SH,v 4.1 90/04/28 22:42:14 syd Exp $ */
  /*******************************************************************************
!  *  The Elm Mail System  -  $Revision: 4.1 $   $State: Exp $
   *
   *             Copyright (c) 1986, 1987 Dave Taylor
   *             Copyright (c) 1988, 1989, 1990 USENET Community Trust
--- 12,20 ----
  esac
  echo "Extracting hdrs/sysdefs.h (with variable substitutions)"
  sed <<!GROK!THIS! >sysdefs.h -e 's!^#undef!/\*#undef!'
! /* $Id: sysdefs.SH,v 4.1.1.1 90/06/09 22:28:42 syd Exp $ */
  /*******************************************************************************
!  *  The Elm Mail System  -  $Revision: 4.1.1.1 $   $State: Exp $
   *
   *             Copyright (c) 1986, 1987 Dave Taylor
   *             Copyright (c) 1988, 1989, 1990 USENET Community Trust
***************
*** 26,31 ****
--- 26,35 ----
   *
   *******************************************************************************
   * $Log:    sysdefs.SH,v $
+  * Revision 4.1.1.1  90/06/09  22:28:42  syd
+  * Allow use of submit with mmdf instead of sendmail stub
+  * From: martin <[e-mail]>
+  *
   * Revision 4.1  90/04/28  22:42:14  syd
   * checkin of Elm 2.3 as of Release PL0
   *
***************
*** 98,104 ****

  #define sendmail    "$sendmail"
  #define smflags        "-oi -oem"    /* ignore dots and mail back errors */
! #define smflagsv      "-oi -oem -v"   /* Verbose voyuer mode */
  #define mailer        "$mailer"

  #define mailx        "$mailx"
--- 102,110 ----

  #define sendmail    "$sendmail"
  #define smflags        "-oi -oem"    /* ignore dots and mail back errors */
! #define smflagsv          "-oi -oem -v"   /* Verbose voyuer mode */
! #define submitmail         "$submit"
! #define submitflags     "-mlrnxto,cc*"
  #define mailer        "$mailer"

  #define mailx        "$mailx"

Index: src/editmsg.c
Prereq: 4.1
*** ../elm2.3/src/editmsg.c    Sat Apr 28 22:42:49 1990
--- src/editmsg.c    Sat Jun  9 23:33:31 1990
***************
*** 1,8 ****

! static char rcsid[] = "@(#)$Id: editmsg.c,v 4.1 90/04/28 22:42:47 syd Exp $";

  /*******************************************************************************
!  *  The Elm Mail System  -  $Revision: 4.1 $   $State: Exp $
   *
   *             Copyright (c) 1986, 1987 Dave Taylor
   *             Copyright (c) 1988, 1989, 1990 USENET Community Trust
--- 1,8 ----

! static char rcsid[] = "@(#)$Id: editmsg.c,v 4.1.1.1 90/06/09 23:33:06 syd Exp $";

  /*******************************************************************************
!  *  The Elm Mail System  -  $Revision: 4.1.1.1 $   $State: Exp $
   *
   *             Copyright (c) 1986, 1987 Dave Taylor
   *             Copyright (c) 1988, 1989, 1990 USENET Community Trust
***************
*** 14,19 ****
--- 14,23 ----
   *
   *******************************************************************************
   * $Log:    editmsg.c,v $
+  * Revision 4.1.1.1  90/06/09  23:33:06  syd
+  * Only say cannot invoke on -1 error which is cannot do exec in system call
+  * From: Syd
+  *
   * Revision 4.1  90/04/28  22:42:47  syd
   * checkin of Elm 2.3 as of Release PL0
   *
***************
*** 76,82 ****
      if (cursor_control)
        transmit_functions(OFF);        /* function keys are local */

!     if ((stat = system_call(buffer, SH, TRUE, FALSE)) != 0) {
        dprint(1,(debugfile,
            "System call failed with stat %d (edit_the_message)\n",
            stat));
--- 80,86 ----
      if (cursor_control)
        transmit_functions(OFF);        /* function keys are local */

!     if ((stat = system_call(buffer, SH, TRUE, FALSE)) == -1) {
        dprint(1,(debugfile,
            "System call failed with stat %d (edit_the_message)\n",
            stat));

Index: src/leavembox.c
Prereq: 4.1
*** ../elm2.3/src/leavembox.c    Sat Apr 28 22:43:20 1990
--- src/leavembox.c    Sat Jun  9 21:53:32 1990
***************
*** 1,8 ****

! static char rcsid[] = "@(#)$Id: leavembox.c,v 4.1 90/04/28 22:43:18 syd Exp $";

  /*******************************************************************************
!  *  The Elm Mail System  -  $Revision: 4.1 $   $State: Exp $
   *
   *             Copyright (c) 1986, 1987 Dave Taylor
   *             Copyright (c) 1988, 1989, 1990 USENET Community Trust
--- 1,8 ----

! static char rcsid[] = "@(#)$Id: leavembox.c,v 4.1.1.1 90/06/09 21:33:23 syd Exp $";

  /*******************************************************************************
!  *  The Elm Mail System  -  $Revision: 4.1.1.1 $   $State: Exp $
   *
   *             Copyright (c) 1986, 1987 Dave Taylor
   *             Copyright (c) 1988, 1989, 1990 USENET Community Trust
***************
*** 14,19 ****
--- 14,26 ----
   *
   *******************************************************************************
   * $Log:    leavembox.c,v $
+  * Revision 4.1.1.1  90/06/09  21:33:23  syd
+  * Some wait system calls return with -1 and errno=4 (interrupted system call) when the
+  * editor is invoked, suspended, and then resumed.  Loop until wait returns pid, or
+  * returns -1 *if errno != EINTR*.  If wait returns -1 and errno = EINTR, we wait again.
+  * Some flock()s refuse to exclusively lock a fd open for read-only access.
+  * From: [e-mail] (Paul Close)
+  *
   * Revision 4.1  90/04/28  22:43:18  syd
   * checkin of Elm 2.3 as of Release PL0
   *
***************
*** 795,801 ****
        /* Now we also need to lock the file with flock(2) */

        /* Open mail file separately for locking */
!       if((flock_fd = open(cur_folder, O_RDONLY)) < 0) {
      dprint(1, (debugfile,
          "Error encountered attempting to reopen %s for lock\n", cur_folder));
      dprint(1, (debugfile, "** %s - %s **\n", error_name(errno),
--- 802,808 ----
        /* Now we also need to lock the file with flock(2) */

        /* Open mail file separately for locking */
!       if((flock_fd = open(cur_folder, O_RDWR)) < 0) {
      dprint(1, (debugfile,
          "Error encountered attempting to reopen %s for lock\n", cur_folder));
      dprint(1, (debugfile, "** %s - %s **\n", error_name(errno),

Index: src/mailmsg2.c
Prereq: 4.1
*** ../elm2.3/src/mailmsg2.c    Sat Apr 28 22:43:30 1990
--- src/mailmsg2.c    Sat Jun  9 23:20:28 1990
***************
*** 1,8 ****

! static char rcsid[] = "@(#)$Id: mailmsg2.c,v 4.1 90/04/28 22:43:28 syd Exp $";

  /*******************************************************************************
!  *  The Elm Mail System  -  $Revision: 4.1 $   $State: Exp $
   *
   *             Copyright (c) 1986, 1987 Dave Taylor
   *             Copyright (c) 1988, 1989, 1990 USENET Community Trust
--- 1,8 ----

! static char rcsid[] = "@(#)$Id: mailmsg2.c,v 4.1.1.2 90/06/09 23:20:24 syd Exp $";

  /*******************************************************************************
!  *  The Elm Mail System  -  $Revision: 4.1.1.2 $   $State: Exp $
   *
   *             Copyright (c) 1986, 1987 Dave Taylor
   *             Copyright (c) 1988, 1989, 1990 USENET Community Trust
***************
*** 14,19 ****
--- 14,26 ----
   *
   *******************************************************************************
   * $Log:    mailmsg2.c,v $
+  * Revision 4.1.1.2  90/06/09  23:20:24  syd
+  * fix typo
+  *
+  * Revision 4.1.1.1  90/06/09  22:28:39  syd
+  * Allow use of submit with mmdf instead of sendmail stub
+  * From: martin <[e-mail]>
+  *
   * Revision 4.1  90/04/28  22:43:28  syd
   * checkin of Elm 2.3 as of Release PL0
   *
***************
*** 339,347 ****
                               )
  #endif

!          strcpy(mailerflags, (sendmail_verbose ? smflagsv : smflags));
        else
!          mailerflags[0] ='\0';

        quote_args(very_long_buffer, strip_parens(strip_commas(expanded_to)));
        strcpy(expanded_to, very_long_buffer);
--- 346,356 ----
                               )
  #endif

!         strcpy(mailerflags, (sendmail_verbose ? smflagsv : smflags));
!       else if (strcmp(submitmail, mailer) == 0)
!         strcpy(mailerflags, submitflags);
        else
!         mailerflags[0] ='\0';

        quote_args(very_long_buffer, strip_parens(strip_commas(expanded_to)));
        strcpy(expanded_to, very_long_buffer);


Index: src/syscall.c
Prereq: 4.1
*** ../elm2.3/src/syscall.c    Sat Apr 28 22:44:19 1990
--- src/syscall.c    Sat Jun  9 22:00:14 1990
***************
*** 1,8 ****

! static char rcsid[] = "@(#)$Id: syscall.c,v 4.1 90/04/28 22:44:18 syd Exp $";

  /*******************************************************************************
!  *  The Elm Mail System  -  $Revision: 4.1 $   $State: Exp $
   *
   *             Copyright (c) 1986, 1987 Dave Taylor
   *             Copyright (c) 1988, 1989, 1990 USENET Community Trust
--- 1,8 ----

! static char rcsid[] = "@(#)$Id: syscall.c,v 4.1.1.2 90/06/09 22:00:13 syd Exp $";

  /*******************************************************************************
!  *  The Elm Mail System  -  $Revision: 4.1.1.2 $   $State: Exp $
   *
   *             Copyright (c) 1986, 1987 Dave Taylor
   *             Copyright (c) 1988, 1989, 1990 USENET Community Trust
***************
*** 14,19 ****
--- 14,30 ----
   *
   *******************************************************************************
   * $Log:    syscall.c,v $
+  * Revision 4.1.1.2  90/06/09  22:00:13  syd
+  * Use a close-on-exec pipe to diagnose exec() failures.
+  * From: tct![e-mail] (Chip Salzenberg)
+  *
+  * Revision 4.1.1.1  90/06/09  21:33:22  syd
+  * Some wait system calls return with -1 and errno=4 (interrupted system call) when the
+  * editor is invoked, suspended, and then resumed.  Loop until wait returns pid, or
+  * returns -1 *if errno != EINTR*.  If wait returns -1 and errno = EINTR, we wait again.
+  * Some flock()s refuse to exclusively lock a fd open for read-only access.
+  * From: [e-mail] (Paul Close)
+  *
   * Revision 4.1  90/04/28  22:44:18  syd
   * checkin of Elm 2.3 as of Release PL0
   *
***************
*** 28,33 ****
--- 39,45 ----
  #include "headers.h"

  #include <signal.h>
+ #include <errno.h>

  #ifdef BSD
  #  include <sys/wait.h>
***************
*** 111,117 ****
          a message being edited when a user connection is
          dropped is recovered by vi's expreserve program **/

!     int stat = 0, pid, w;
  #if defined(BSD) && !defined(WEXITSTATUS)
      union wait status;
  #else
--- 123,130 ----
          a message being edited when a user connection is
          dropped is recovered by vi's expreserve program **/

!     int pfd[2], stat, pid, w, iteration;
!     char *sh;
  #if defined(BSD) && !defined(WEXITSTATUS)
      union wait status;
  #else
***************
*** 128,175 ****
      register int (*oldstop)(), (*oldstart)();
  # endif
  #endif
!
!     dprint(2, (debugfile,
!         "System Call: %s\n\t%s\n", shell_type == SH? "/bin/sh" : shell,
!         string));

! #ifdef VFORK
!     if ((pid = vfork()) == 0)
! #else
!     if ((pid = fork()) == 0)
! #endif
!     {
!       setgid(groupid);    /* and group id            */
!       setuid(userid);    /* back to the normal user! */

!       if(allow_signals) {
!         /* program to exec should handle interrupt, accidental hangup, and stop signals */
!         (void)signal(SIGHUP, SIG_DFL);
!         if (allow_interrupt)
!           (void)signal(SIGINT, SIG_DFL);
!         else
!           (void)signal(SIGINT, SIG_IGN);
! #ifdef SIGTSTP
!         (void)signal(SIGTSTP, SIG_DFL);
!         (void)signal(SIGCONT, SIG_DFL);
! #endif
!       } else {
!         /* program to exec should ignore interrupt, accidental hangup, and stop signals */
!         (void)signal(SIGHUP, SIG_IGN);
!         (void)signal(SIGINT, SIG_IGN);
! #ifdef SIGTSTP
!         (void)signal(SIGTSTP, SIG_IGN);
!         (void)signal(SIGCONT, SIG_IGN);
! #endif
!       }

!       if (strlen(shell) > 0 && shell_type == USER_SHELL) {
!         execl(shell, argv_zero(shell), "-c", string, (char *) 0);
!       }
!       else
!         execl("/bin/sh", "sh", "-c", string, (char *) 0);
!       _exit(127);
      }

      istat = signal(SIGINT, SIG_IGN);
      qstat = signal(SIGQUIT, SIG_IGN);
--- 141,165 ----
      register int (*oldstop)(), (*oldstart)();
  # endif
  #endif
!     extern int errno;

!     sh = (shell_type == USER_SHELL) ? shell : "/bin/sh";
!     dprint(2, (debugfile, "System Call: %s\n\t%s\n", sh, string));

!     /*
!      * Note the neat trick with close-on-exec pipes.
!      * If the child's exec() succeeds, then the pipe read returns zero.
!      * Otherwise, it returns the zero byte written by the child
!      * after the exec() is attempted.  This is the cleanest way I know
!      * to discover whether an exec() failed.   --CHS
!      */

!     if (pipe(pfd) == -1) {
!       perror("pipe");
!       return -1;
      }
+     fcntl(pfd[0], F_SETFD, 1);
+     fcntl(pfd[1], F_SETFD, 1);

      istat = signal(SIGINT, SIG_IGN);
      qstat = signal(SIGQUIT, SIG_IGN);
***************
*** 178,204 ****
      oldstart = signal(SIGCONT, SIG_DFL);
  #endif

!     while ((w = wait(&status)) != pid && w != -1)
!         ;


!     if (w == pid) {
  #ifdef    WEXITSTATUS
!       stat = WEXITSTATUS(status);
  #else
  # ifdef    BSD
!       if (status.w_retcode != 0) stat = status.w_retcode;
  # else
!       stat = status;
  # endif
  #endif
!     }
!
!     (void)signal(SIGINT, istat);
!     (void)signal(SIGQUIT, qstat);
  #ifdef SIGTSTP
!     (void)signal(SIGTSTP, oldstop);
!     (void)signal(SIGCONT, oldstart);
  #endif

      return(stat);
--- 168,254 ----
      oldstart = signal(SIGCONT, SIG_DFL);
  #endif

!     stat = -1;        /* Assume failure. */

+     for (iteration = 0; iteration < 5; ++iteration) {
+       if (iteration > 0)
+         sleep(2);

! #ifdef VFORK
!       pid = vfork();
! #else
!       pid = fork();
! #endif
!
!       if (pid != -1)
!         break;
!     }
!
!     if (pid == -1) {
!       perror("fork");
!     }
!     else if (pid == 0) {
!       /*
!        * Set group and user back to their original values.
!        * Note that group must be set first.
!        */
!       setgid(groupid);
!       setuid(userid);
!
!       /*
!        * Program to exec may or may not be able to handle
!        * interrupt, quit, hangup and stop signals.
!        */
!       (void) signal(SIGHUP, allow_signals ? SIG_DFL : SIG_IGN);
!       (void) signal(SIGINT, (allow_signals && allow_interrupt)?SIG_DFL:SIG_IGN);
!       (void) signal(SIGQUIT, (allow_signals && allow_interrupt)?SIG_DFL:SIG_IGN);
! #ifdef SIGTSTP
!       (void) signal(SIGTSTP, allow_signals ? SIG_DFL : SIG_IGN);
!       (void) signal(SIGCONT, allow_signals ? SIG_DFL : SIG_IGN);
! #endif
!
!       /* Go for it. */
!       execl(sh, argv_zero(sh), "-c", string, (char *) 0);
!
!       /* If exec fails, we write a byte to the pipe before exiting. */
!       perror(sh);
!       write(pfd[1], "", 1);
!       _exit(127);
!     }
!     else {
!       int rd;
!       char ch;
!
!       /* Try to read a byte from the pipe. */
!       close(pfd[1]);
!       rd = read(pfd[0], &ch, 1);
!       close(pfd[0]);
!
!       while ((w = wait(&status)) != pid)
!           if (w == -1 && errno != EINTR)
!           break;
!
!       /* If we read a byte from the pipe, the exec failed. */
!       if (rd > 0)
!         stat = -1;
!       else if (w == pid) {
  #ifdef    WEXITSTATUS
!         stat = WEXITSTATUS(status);
  #else
  # ifdef    BSD
!         stat = status.w_retcode;
  # else
!         stat = status;
  # endif
  #endif
!       }
!       }
!
!     (void) signal(SIGINT, istat);
!     (void) signal(SIGQUIT, qstat);
  #ifdef SIGTSTP
!     (void) signal(SIGTSTP, oldstop);
!     (void) signal(SIGCONT, oldstart);
  #endif

      return(stat);

exit 0 # Just in case...