X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/2dc40d89a2b1dbde4a318ca9ef77cbcdce600e9c..be7a578175c0e43d8b7b28d9bf5475f512d5918b:/test/runtest

diff --git a/test/runtest b/test/runtest
index c199539a5..0514c05f5 100755
--- a/test/runtest
+++ b/test/runtest
@@ -13,20 +13,32 @@
 # Placed in the Exim CVS: 06 February 2006                                    #
 ###############################################################################
 
+#use strict;
 require Cwd;
 use Errno;
 use FileHandle;
 use Socket;
+use Time::Local;
 
 
 # Start by initializing some global variables
 
-$testversion = "4.72 (02-Jun-10)";
+$testversion = "4.80 (08-May-12)";
+
+# This gets embedded in the D-H params filename, and the value comes
+# from asking GnuTLS for "normal", but there appears to be no way to
+# use certtool/... to ask what that value currently is.  *sigh*
+# We also clamp it because of NSS interop, see addition of tls_dh_max_bits.
+# This value is correct as of GnuTLS 2.12.18 as clamped by tls_dh_max_bits.
+# normal = 2432   tls_dh_max_bits = 2236
+$gnutls_dh_bits_normal = 2236;
 
 $cf = "bin/cf -exact";
 $cr = "\r";
 $debug = 0;
+$force_continue = 0;
 $force_update = 0;
+$log_failed_filename = "failed-summary.log";
 $more = "less -XF";
 $optargs = "";
 $save_output = 0;
@@ -65,6 +77,9 @@ $parm_port_d2 = 1226;        # Additional for daemon
 $parm_port_d3 = 1227;        # Additional for daemon
 $parm_port_d4 = 1228;        # Additional for daemon
 
+# Manually set locale
+$ENV{'LC_ALL'} = 'C';
+
 
 
 ###############################################################################
@@ -118,6 +133,12 @@ s?\bV6NET:?$parm_ipv6_test_net:?g;
 }
 
 
+##################################################
+#     Any state to be preserved across tests     #
+##################################################
+
+my $TEST_STATE = {};
+
 
 ##################################################
 #        Subroutine to tidy up and exit          #
@@ -140,6 +161,13 @@ my($spool);
 # than SIGTERM to stop it outputting "Terminated" to the terminal when not in
 # the background.
 
+if (exists $TEST_STATE->{exim_pid})
+  {
+  $pid = $TEST_STATE->{exim_pid};
+  print "Tidyup: killing wait-mode daemon pid=$pid\n";
+  system("sudo kill -SIGINT $pid");
+  }
+
 if (opendir(DIR, "spool"))
   {
   my(@spools) = sort readdir(DIR);
@@ -166,6 +194,8 @@ system("sudo /bin/rm -rf ./spool test-* ./dnszones/*")
   if ($rc == 0 && !$save_output);
 
 system("sudo /bin/rm -rf ./eximdir/*");
+
+print "\nYou were in test $test at the end there.\n\n" if defined $test;
 exit $rc if ($rc >= 0);
 die "** runtest error: $_[1]\n";
 }
@@ -196,14 +226,26 @@ return $newid;
 }
 
 
-# This is used while munging the output from exim_dumpdb. We cheat by assuming
-# that the  date always the same, and just return the number of seconds since
-# midnight.
+# This is used while munging the output from exim_dumpdb.
+# May go wrong across DST changes.
 
 sub date_seconds {
 my($day,$month,$year,$hour,$min,$sec) =
   $_[0] =~ /^(\d\d)-(\w\w\w)-(\d{4})\s(\d\d):(\d\d):(\d\d)/;
-return $hour * 60 * 60 + $min * 60 + $sec;
+my($mon);
+if   ($month =~ /Jan/) {$mon = 0;}
+elsif($month =~ /Feb/) {$mon = 1;}
+elsif($month =~ /Mar/) {$mon = 2;}
+elsif($month =~ /Apr/) {$mon = 3;}
+elsif($month =~ /May/) {$mon = 4;}
+elsif($month =~ /Jun/) {$mon = 5;}
+elsif($month =~ /Jul/) {$mon = 6;}
+elsif($month =~ /Aug/) {$mon = 7;}
+elsif($month =~ /Sep/) {$mon = 8;}
+elsif($month =~ /Oct/) {$mon = 9;}
+elsif($month =~ /Nov/) {$mon = 10;}
+elsif($month =~ /Dec/) {$mon = 11;}
+return timelocal($sec,$min,$hour,$day,$mon,$year);
 }
 
 
@@ -273,6 +315,7 @@ return @yield;
 
 sub munge {
 my($file) = $_[0];
+my($extra) = $_[1];
 my($yield) = 0;
 my(@saved) = ();
 
@@ -298,6 +341,13 @@ $spid = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
 while(<IN>)
   {
 RESET_AFTER_EXTRA_LINE_READ:
+  # Custom munges
+  if ($extra)
+    {
+    next if $extra =~ m%^/%  &&  eval $extra;
+    eval $extra if $extra =~ m/^s/;
+    }
+
   # Check for "*** truncated ***"
   $yield = 1 if /\*\*\* truncated \*\*\*/;
 
@@ -307,6 +357,9 @@ RESET_AFTER_EXTRA_LINE_READ:
   # But convert "name=the.local.host address=127.0.0.1" to use "localhost"
   s/name=the\.local\.host address=127\.0\.0\.1/name=localhost address=127.0.0.1/g;
 
+  # The name of the shell may vary
+  s/\s\Q$parm_shell\E\b/ ENV_SHELL/;
+
   # Replace the path to the testsuite directory
   s?\Q$parm_cwd\E?TESTSUITE?g;
 
@@ -354,9 +407,6 @@ RESET_AFTER_EXTRA_LINE_READ:
   # The message for a non-listening FIFO varies
   s/:[^:]+: while opening named pipe/: Error: while opening named pipe/;
 
-  # The name of the shell may vary
-  s/\s\Q$parm_shell\E\b/ SHELL/;
-
   # Debugging output of lists of hosts may have different sort keys
   s/sort=\S+/sort=xx/ if /^\S+ (?:\d+\.){3}\d+ mx=\S+ sort=\S+/;
 
@@ -441,6 +491,42 @@ RESET_AFTER_EXTRA_LINE_READ:
     \d{4}-\d\d-\d\d\s\d\d:\d\d:\d\d/Exim statistics from <time> to <time>/x;
 
 
+  # ======== TLS certificate algorithms ========
+  # Test machines might have various different TLS library versions supporting
+  # different protocols; can't rely upon TLS 1.2's AES256-GCM-SHA384, so we
+  # treat the standard algorithms the same.
+  # So far, have seen:
+  #   TLSv1:AES256-SHA:256
+  #   TLSv1.2:AES256-GCM-SHA384:256
+  #   TLSv1.2:DHE-RSA-AES256-SHA:256
+  #   TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128
+  # We also need to handle the ciphersuite without the TLS part present, for
+  # client-ssl's output.  We also see some older forced ciphersuites, but
+  # negotiating TLS 1.2 instead of 1.0.
+  # Mail headers (...), log-lines X=..., client-ssl output ...
+  # (and \b doesn't match between ' ' and '(' )
+
+  s/( (?: (?:\b|\s) [\(=] ) | \s )TLSv1\.2:/$1TLSv1:/xg;
+  s/\bAES256-GCM-SHA384\b/AES256-SHA/g;
+  s/\bDHE-RSA-AES256-SHA\b/AES256-SHA/g;
+
+  # GnuTLS have seen:
+  #   TLS1.2:RSA_AES_256_CBC_SHA1:256 (canonical)
+  #   TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128
+  #
+  #   X=TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256
+  #   X=TLS1.2:RSA_AES_256_CBC_SHA1:256
+  #   X=TLS1.1:RSA_AES_256_CBC_SHA1:256
+  #   X=TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256
+  # and as stand-alone cipher:
+  #   DHE-RSA-AES256-SHA256
+  #   DHE-RSA-AES256-SHA
+  # picking latter as canonical simply because regex easier that way.
+  s/\bDHE_RSA_AES_128_CBC_SHA1:128/RSA_AES_256_CBC_SHA1:256/g;
+  s/TLS1.[012]:(DHE_)?RSA_AES_256_CBC_SHA(1|256):256/TLS1.x:xxxxRSA_AES_256_CBC_SHAnnn:256/g;
+  s/\bDHE-RSA-AES256-SHA256\b/DHE-RSA-AES256-SHA/g;
+
+
   # ======== Caller's login, uid, gid, home, gecos ========
 
   s/\Q$parm_caller_home\E/CALLER_HOME/g;   # NOTE: these must be done
@@ -598,7 +684,9 @@ RESET_AFTER_EXTRA_LINE_READ:
   # Handle only the Gnu and MacOS space, dot, plus and at-sign.  A full [[:graph:]]
   # unfortunately matches a non-ls linefull of dashes.
   # Allow the case where we've already picked out the file protection bits.
-  s/^([-d](?:[-r][-w][-SsTtx]){3})[.+@]?( +|$)/\1 /;
+  if (s/^([-d](?:[-r][-w][-SsTtx]){3})[.+@]?( +|$)/$1$2/) {
+    s/ +/ /g;
+  }
 
 
   # ======== Message sizes =========
@@ -644,7 +732,6 @@ RESET_AFTER_EXTRA_LINE_READ:
 
   s/(TLS error on connection (?:from|to) .*? \(SSL_\w+\): error:)(.*)/$1 <<detail omitted>>/;
 
-
   # ======== Maildir things ========
   # timestamp output in maildir processing
   s/(timestamp=|\(timestamp_only\): )\d+/$1ddddddd/g;
@@ -777,6 +864,15 @@ RESET_AFTER_EXTRA_LINE_READ:
     # be the case
     next if /^changing group to \d+ failed: Operation not permitted/;
 
+    # We might not keep this check; rather than change all the tests, just
+    # ignore it as long as it succeeds; then we only need to change the
+    # TLS tests where tls_require_ciphers has been set.
+    if (m{^changed uid/gid: calling tls_validate_require_cipher}) {
+      my $discard = <IN>;
+      next;
+    }
+    next if /^tls_validate_require_cipher child \d+ ended: status=0x0/;
+
     # We invoke Exim with -D, so we hit this new messag as of Exim 4.73:
     next if /^macros_trusted overridden to true by whitelisting/;
 
@@ -912,16 +1008,43 @@ return $yield;
 
 # Arguments: [0] the prompt string
 #            [1] if there is a U in the prompt and $force_update is true
+#            [2] if there is a C in the prompt and $force_continue is true
 # Returns:   nothing (it sets $_)
 
 sub interact{
 print $_[0];
 if ($_[1]) { $_ = "u"; print "... update forced\n"; }
+  elsif ($_[2]) { $_ = "c"; print "... continue forced\n"; }
   else { $_ = <T>; }
 }
 
 
 
+##################################################
+#    Subroutine to log in force_continue mode    #
+##################################################
+
+# In force_continue mode, we just want a terse output to a statically
+# named logfile.  If multiple files in same batch (stdout, stderr, etc)
+# all have mismatches, it will log multiple times.
+#
+# Arguments: [0] the logfile to append to
+#            [1] the testno that failed
+# Returns:   nothing
+
+
+
+sub log_failure {
+  my $logfile = shift();
+  my $testno  = shift();
+  my $detail  = shift() || '';
+  if ( open(my $fh, ">>", $logfile) ) {
+    print $fh "Test $testno $detail failed\n";
+    close $fh;
+  }
+}
+
+
 
 ##################################################
 #    Subroutine to compare one output file       #
@@ -936,6 +1059,7 @@ if ($_[1]) { $_ = "u"; print "... update forced\n"; }
 #             [2] where to put the munged copy
 #             [3] the name of the saved file
 #             [4] TRUE if this is a log file whose deliveries must be sorted
+#             [5] optionally, a custom munge command
 #
 # Returns:    0 comparison succeeded or differences to be ignored
 #             1 comparison failed; files may have been updated (=> re-compare)
@@ -943,7 +1067,7 @@ if ($_[1]) { $_ = "u"; print "... update forced\n"; }
 # Does not return if the user replies "Q" to a prompt.
 
 sub check_file{
-my($rf,$rsf,$mf,$sf,$sortfile) = @_;
+my($rf,$rsf,$mf,$sf,$sortfile,$extra) = @_;
 
 # If there is no saved file, the raw files must either not exist, or be
 # empty. The test ! -s is TRUE if the file does not exist or is empty.
@@ -961,6 +1085,7 @@ if (! -e $sf)
     print "Continue, Show, or Quit? [Q] ";
     $_ = <T>;
     tests_exit(1) if /^q?$/i;
+    log_failure($log_failed_filename, $testno, $rf) if (/^c$/i && $force_continue);
     return 0 if /^c$/i;
     last if (/^s$/);
     }
@@ -979,8 +1104,9 @@ if (! -e $sf)
   print "\n";
   for (;;)
     {
-    interact("Continue, Update & retry, Quit? [Q] ", $force_update);
+    interact("Continue, Update & retry, Quit? [Q] ", $force_update, $force_continue);
     tests_exit(1) if /^q?$/i;
+    log_failure($log_failed_filename, $testno, $rsf) if (/^c$/i && $force_continue);
     return 0 if /^c$/i;
     last if (/^u$/i);
     }
@@ -991,11 +1117,11 @@ if (! -e $sf)
 # data that does exist.
 
 open(MUNGED, ">$mf") || tests_exit(-1, "Failed to open $mf: $!");
-my($truncated) = munge($rf) if -e $rf;
+my($truncated) = munge($rf, $extra) if -e $rf;
 if (defined $rsf && -e $rsf)
   {
   print MUNGED "\n******** SERVER ********\n";
-  $truncated |= munge($rsf);
+  $truncated |= munge($rsf, $extra);
   }
 close(MUNGED);
 
@@ -1096,8 +1222,9 @@ if (-e $sf)
   print "\n";
   for (;;)
     {
-    interact("Continue, Retry, Update & retry, Quit? [Q] ", $force_update);
+    interact("Continue, Retry, Update & retry, Quit? [Q] ", $force_update, $force_continue);
     tests_exit(1) if /^q?$/i;
+    log_failure($log_failed_filename, $testno, $sf) if (/^c$/i && $force_continue);
     return 0 if /^c$/i;
     return 1 if /^r$/i;
     last if (/^u$/i);
@@ -1116,47 +1243,76 @@ return 1;
 
 
 
+##################################################
+# Custom munges
+# keyed by name of munge; value is a ref to a hash
+# which is keyed by file, value a string to look for.
+# Usable files are:
+#  paniclog, rejectlog, mainlog, stdout, stderr, msglog, mail
+# Search strings starting with 's' do substitutions;
+# with '/' do line-skips.
+##################################################
+$munges =
+  { 'dnssec' =>
+    { 'stderr' => '/^Reverse DNS security status: unverified\n/', },
+
+    'gnutls_unexpected' =>
+    { 'mainlog' => '/\(recv\): A TLS packet with unexpected length was received./', },
+
+    'gnutls_handshake' =>
+    { 'mainlog' => 's/\(gnutls_handshake\): Error in the push function/\(gnutls_handshake\): A TLS packet with unexpected length was received/', },
+
+  };
+
+
 ##################################################
 #    Subroutine to check the output of a test    #
 ##################################################
 
 # This function is called when the series of subtests is complete. It makes
-# use of check() file, whose arguments are:
+# use of check_file(), whose arguments are:
 #
 #  [0] the name of the main raw output file
 #  [1] the name of the server raw output file or undef
 #  [2] where to put the munged copy
 #  [3] the name of the saved file
 #  [4] TRUE if this is a log file whose deliveries must be sorted
+#  [5] an optional custom munge command
 #
-# Arguments: none
+# Arguments: Optionally, name of a custom munge to run.
 # Returns:   0 if the output compared equal
 #            1 if re-run needed (files may have been updated)
 
 sub check_output{
+my($mungename) = $_[0];
 my($yield) = 0;
+my($munge) = $munges->{$mungename} if defined $mungename;
 
 $yield = 1 if check_file("spool/log/paniclog",
                        "spool/log/serverpaniclog",
                        "test-paniclog-munged",
-                       "paniclog/$testno", 0);
+                       "paniclog/$testno", 0,
+		       $munge->{'paniclog'});
 
 $yield = 1 if check_file("spool/log/rejectlog",
                        "spool/log/serverrejectlog",
                        "test-rejectlog-munged",
-                       "rejectlog/$testno", 0);
+                       "rejectlog/$testno", 0,
+		       $munge->{'rejectlog'});
 
 $yield = 1 if check_file("spool/log/mainlog",
                        "spool/log/servermainlog",
                        "test-mainlog-munged",
-                       "log/$testno", $sortlog);
+                       "log/$testno", $sortlog,
+		       $munge->{'mainlog'});
 
 if (!$stdout_skip)
   {
   $yield = 1 if check_file("test-stdout",
                        "test-stdout-server",
                        "test-stdout-munged",
-                       "stdout/$testno", 0);
+                       "stdout/$testno", 0,
+		       $munge->{'stdout'});
   }
 
 if (!$stderr_skip)
@@ -1164,7 +1320,8 @@ if (!$stderr_skip)
   $yield = 1 if check_file("test-stderr",
                        "test-stderr-server",
                        "test-stderr-munged",
-                       "stderr/$testno", 0);
+                       "stderr/$testno", 0,
+		       $munge->{'stderr'});
   }
 
 # Compare any delivered messages, unless this test is skipped.
@@ -1203,7 +1360,8 @@ if (! $message_skip)
 
     print ">> COMPARE $mail mail/$testno.$saved_mail\n" if $debug;
     $yield = 1 if check_file($mail, undef, "test-mail-munged",
-      "mail/$testno.$saved_mail", 0);
+      "mail/$testno.$saved_mail", 0,
+      $munge->{'mail'});
     delete $expected_mails{"mail/$testno.$saved_mail"};
     }
 
@@ -1216,8 +1374,9 @@ if (! $message_skip)
 
     for (;;)
       {
-      interact("Continue, Update & retry, or Quit? [Q] ", $force_update);
+      interact("Continue, Update & retry, or Quit? [Q] ", $force_update, $force_continue);
       tests_exit(1) if /^q?$/i;
+      log_failure($log_failed_filename, $testno, "missing email") if (/^c$/i && $force_continue);
       last if /^c$/i;
 
       # For update, we not only have to unlink the file, but we must also
@@ -1273,7 +1432,8 @@ if (! $msglog_skip)
         s/((?:[^\W_]{6}-){2}[^\W_]{2})
           /new_value($1, "10Hm%s-0005vi-00", \$next_msgid)/egx;
       $yield = 1 if check_file("spool/msglog/$msglog", undef,
-        "test-msglog-munged", "msglog/$testno.$munged_msglog", 0);
+        "test-msglog-munged", "msglog/$testno.$munged_msglog", 0,
+        $munge->{'msglog'});
       delete $expected_msglogs{"$testno.$munged_msglog"};
       }
     }
@@ -1298,8 +1458,9 @@ if (! $msglog_skip)
 
     for (;;)
       {
-      interact("Continue, Update, or Quit? [Q] ", $force_update);
+      interact("Continue, Update, or Quit? [Q] ", $force_update, $force_continue);
       tests_exit(1) if /^q?$/i;
+      log_failure($log_failed_filename, $testno, "missing msglog") if (/^c$/i && $force_continue);
       last if /^c$/i;
       if (/^u$/i)
         {
@@ -1358,17 +1519,22 @@ system("$cmd");
 #            reference to the subtest number, holding previous value
 #            reference to the expected return code value
 #            reference to where to put the command name (for messages)
+#            auxilliary information returned from a previous run
 #
 # Returns:   0 the commmand was executed inline, no subprocess was run
 #            1 a non-exim command was run and waited for
 #            2 an exim command was run and waited for
 #            3 a command was run and not waited for (daemon, server, exim_lock)
 #            4 EOF was encountered after an initial return code line
+# Optionally alse a second parameter, a hash-ref, with auxilliary information:
+#            exim_pid: pid of a run process
+#            munge: name of a post-script results munger
 
 sub run_command{
 my($testno) = $_[0];
 my($subtestref) = $_[1];
 my($commandnameref) = $_[3];
+my($aux_info) = $_[4];
 my($yield) = 1;
 
 if (/^(\d+)\s*$/)                # Handle unusual return code
@@ -1526,9 +1692,10 @@ if (/^eximstats\s+(.*)/)
 
 if (/^gnutls/)
   {
-  run_system "sudo cp -p aux-fixed/gnutls-params spool/gnutls-params;" .
-         "sudo chown $parm_eximuser:$parm_eximgroup spool/gnutls-params;" .
-         "sudo chmod 0400 spool/gnutls-params";
+  my $gen_fn = "spool/gnutls-params-$gnutls_dh_bits_normal";
+  run_system "sudo cp -p aux-fixed/gnutls-params $gen_fn;" .
+         "sudo chown $parm_eximuser:$parm_eximgroup $gen_fn;" .
+         "sudo chmod 0400 $gen_fn";
   return 1;
   }
 
@@ -1539,11 +1706,27 @@ if (/^gnutls/)
 
 if (/^killdaemon/)
   {
-  $pid = `cat $parm_cwd/spool/exim-daemon.*`;
-  run_system("sudo /bin/kill -SIGINT $pid");
-  close DAEMONCMD;                                   # Waits for process
-  run_system("sudo /bin/rm -f spool/exim-daemon.*");
-  return 1;
+  my $return_extra = {};
+  if (exists $aux_info->{exim_pid})
+    {
+    $pid = $aux_info->{exim_pid};
+    $return_extra->{exim_pid} = undef;
+    print ">> killdaemon: recovered pid $pid\n" if $debug;
+    if ($pid)
+      {
+      run_system("sudo /bin/kill -SIGINT $pid");
+      wait;
+      }
+    } else {
+    $pid = `cat $parm_cwd/spool/exim-daemon.*`;
+    if ($pid)
+      {
+      run_system("sudo /bin/kill -SIGINT $pid");
+      close DAEMONCMD;                                   # Waits for process
+      }
+    }
+    run_system("sudo /bin/rm -f spool/exim-daemon.*");
+  return (1, $return_extra);
   }
 
 
@@ -1558,6 +1741,18 @@ elsif (/^millisleep\s+(.*)$/)
   }
 
 
+# The "munge" command selects one of a hardwired set of test-result modifications
+# to be made before result compares are run agains the golden set.  This lets
+# us account for test-system dependent things which only affect a few, but known,
+# test-cases.
+# Currently only the last munge takes effect.
+
+if (/^munge\s+(.*)$/)
+  {
+  return (0, { munge => $1 });
+  }
+
+
 # The "sleep" command does just that. For sleeps longer than 1 second we
 # tell the user what's going on.
 
@@ -1771,6 +1966,10 @@ elsif (/^([A-Z_]+=\S+\s+)?(\d+)?\s*(sudo\s+)?exim(_\S+)?\s+(.*)$/)
 
     my($i);
     for ($i = @msglist; $i > 0; $i--) { $args =~ s/\$msg$i/$msglist[$i-1]/g; }
+    if ( $args =~ /\$msg\d/ )
+      {
+      tests_exit(-1, "Not enough messages in spool, for test $testno line $lineno\n");
+      }
     }
 
   # If -d is specified in $optargs, remove it from $args; i.e. let
@@ -1814,6 +2013,38 @@ elsif (/^([A-Z_]+=\S+\s+)?(\d+)?\s*(sudo\s+)?exim(_\S+)?\s+(.*)$/)
     select(undef, undef, undef, 0.3);             # Let the daemon get going
     return 3;                                     # Don't wait
     }
+  elsif ($cmd =~ /\s-DSERVER=wait:(\d+)\s/)
+    {
+    my $listen_port = $1;
+    my $waitmode_sock = new FileHandle;
+    if ($debug) { printf ">> wait-mode daemon: $cmd\n"; }
+    run_system("sudo mkdir spool/log 2>/dev/null");
+    run_system("sudo chown $parm_eximuser:$parm_eximgroup spool/log");
+
+    my ($s_ip,$s_port) = ('127.0.0.1', $listen_port);
+    my $sin = sockaddr_in($s_port, inet_aton($s_ip))
+        or die "** Failed packing $s_ip:$s_port\n";
+    socket($waitmode_sock, PF_INET, SOCK_STREAM, getprotobyname('tcp'))
+        or die "** Unable to open socket $s_ip:$s_port: $!\n";
+    setsockopt($waitmode_sock, SOL_SOCKET, SO_REUSEADDR, 1)
+        or die "** Unable to setsockopt(SO_REUSEADDR): $!\n";
+    bind($waitmode_sock, $sin)
+        or die "** Unable to bind socket ($s_port): $!\n";
+    listen($waitmode_sock, 5);
+    my $pid = fork();
+    if (not defined $pid) { die "** fork failed: $!\n" }
+    if (not $pid) {
+      close(STDIN);
+      open(STDIN, "<&", $waitmode_sock) or die "** dup sock to stdin failed: $!\n";
+      close($waitmode_sock);
+      print "[$$]>> ${cmd}-server\n" if ($debug);
+      exec "exec ${cmd}-server";
+      exit(1);
+    }
+    while (<SCRIPT>) { $lineno++; last if /^\*{4}\s*$/; }   # Ignore any input
+    select(undef, undef, undef, 0.3);             # Let the daemon get going
+    return (3, { exim_pid => $pid });             # Don't wait
+    }
   }
 
 
@@ -1914,7 +2145,7 @@ else
 # If the first character of the first argument is '/', the argument is taken
 # as the path to the binary.
 
-$parm_exim = (@ARGV > 0 && $ARGV[0] =~ ?^/?)? shift @ARGV : "";
+$parm_exim = (@ARGV > 0 && $ARGV[0] =~ m?^/?)? shift @ARGV : "";
 print "Exim binary is $parm_exim\n" if $parm_exim ne "";
 
 
@@ -1934,6 +2165,7 @@ while (@ARGV > 0 && $ARGV[0] =~ /^-/)
     {
     if ($arg eq "-DEBUG")  { $debug = 1; $cr = "\n"; next; }
     if ($arg eq "-DIFF")   { $cf = "diff -u"; next; }
+    if ($arg eq "-CONTINUE"){$force_continue = 1; next; }
     if ($arg eq "-UPDATE") { $force_update = 1; next; }
     if ($arg eq "-NOIPV4") { $have_ipv4 = 0; next; }
     if ($arg eq "-NOIPV6") { $have_ipv6 = 0; next; }
@@ -2177,6 +2409,8 @@ unlink("$parm_cwd/test-config");
 
 if (defined $parm_support{'Content_Scanning'})
   {
+  my $sock = new FileHandle;
+
   if (system("spamc -h 2>/dev/null >/dev/null") == 0)
     {
     print "The spamc command works:\n";
@@ -2193,23 +2427,23 @@ if (defined $parm_support{'Content_Scanning'})
       {
       my $sin = sockaddr_in($sport, inet_aton($sint))
           or die "** Failed packing $sint:$sport\n";
-      socket(SOCK, PF_INET, SOCK_STREAM, getprotobyname('tcp'))
+      socket($sock, PF_INET, SOCK_STREAM, getprotobyname('tcp'))
           or die "** Unable to open socket $sint:$sport\n";
 
       local $SIG{ALRM} =
           sub { die "** Timeout while connecting to socket $sint:$sport\n"; };
       alarm(5);
-      connect(SOCK, $sin)
+      connect($sock, $sin)
           or die "** Unable to connect to socket $sint:$sport\n";
       alarm(0);
 
-      select((select(SOCK), $| = 1)[0]);
-      print SOCK "bad command\r\n";
+      select((select($sock), $| = 1)[0]);
+      print $sock "bad command\r\n";
 
       $SIG{ALRM} =
           sub { die "** Timeout while reading from socket $sint:$sport\n"; };
       alarm(10);
-      my $res = <SOCK>;
+      my $res = <$sock>;
       alarm(0);
 
       $res =~ m|^SPAMD/|
@@ -2320,18 +2554,18 @@ if (defined $parm_support{'Content_Scanning'})
             {
             die "** Unknown socket domain '$socket_domain' (should not happen)\n";
             }
-          socket(SOCK, $socket_domain, SOCK_STREAM, 0) or die "** Unable to open socket '$parm_clamsocket'\n";
+          socket($sock, $socket_domain, SOCK_STREAM, 0) or die "** Unable to open socket '$parm_clamsocket'\n";
           local $SIG{ALRM} = sub { die "** Timeout while connecting to socket '$parm_clamsocket'\n"; };
           alarm(5);
-          connect(SOCK, $socket) or die "** Unable to connect to socket '$parm_clamsocket'\n";
+          connect($sock, $socket) or die "** Unable to connect to socket '$parm_clamsocket'\n";
           alarm(0);
 
-          my $ofh = select SOCK; $| = 1; select $ofh;
-          print SOCK "PING\n";
+          my $ofh = select $sock; $| = 1; select $ofh;
+          print $sock "PING\n";
 
           $SIG{ALRM} = sub { die "** Timeout while reading from socket '$parm_clamsocket'\n"; };
           alarm(10);
-          my $res = <SOCK>;
+          my $res = <$sock>;
           alarm(0);
 
           $res =~ /PONG/ or die "** Did not get PONG from socket '$parm_clamsocket'. It said: $res\n";
@@ -2583,9 +2817,11 @@ if ($parm_hostname !~ /\./)
   print "\n*** Host name is not fully qualified: this may cause problems ***\n\n";
   }
 
-# Find the user's shell
+if ($parm_hostname =~ /[[:upper:]]/)
+  {
+  print "\n*** Host name has upper case characters: this may cause problems ***\n\n";
+  }
 
-$parm_shell = $ENV{'SHELL'};
 
 
 ##################################################
@@ -2647,7 +2883,7 @@ system("sudo cp eximdir/exim eximdir/exim_exim;" .
 # Certain of the tests make use of some of Exim's utilities. We do not need
 # to be root to copy these.
 
-($parm_exim_dir) = $parm_exim =~ ?^(.*)/exim?;
+($parm_exim_dir) = $parm_exim =~ m?^(.*)/exim?;
 
 $dbm_build_deleted = 0;
 if (defined $parm_lookups{'dbm'} &&
@@ -2906,6 +3142,10 @@ foreach $basedir ("aux-var", "dnszones")
     }
   }
 
+# Set a user's shell, distinguishable from /bin/sh
+
+symlink("/bin/sh","aux-var/sh");
+$ENV{'SHELL'} = $parm_shell = $parm_cwd . "/aux-var/sh";
 
 ##################################################
 #     Create fake DNS zones for this host        #
@@ -2945,7 +3185,18 @@ if ($have_ipv4 && $parm_ipv4 ne "127.0.0.1")
 
 if ($have_ipv6 && $parm_ipv6 ne "::1")
   {
-  my(@components) = split /:/, $parm_ipv6;
+  my($exp_v6) = $parm_ipv6;
+  $exp_v6 =~ s/[^:]//g;
+  if ( $parm_ipv6 =~ /^([^:].+)::$/ ) {
+    $exp_v6 = $1 . ':0' x (9-length($exp_v6));
+  } elsif ( $parm_ipv6 =~ /^(.+)::(.+)$/ ) {
+    $exp_v6 = $1 . ':0' x (8-length($exp_v6)) . ':' . $2;
+  } elsif ( $parm_ipv6 =~ /^::(.+[^:])$/ ) {
+    $exp_v6 = '0:' x (9-length($exp_v6)) . $1;
+  } else {
+    $exp_v6 = $parm_ipv6;
+  }
+  my(@components) = split /:/, $exp_v6;
   my(@nibbles) = reverse (split /\s*/, shift @components);
   my($sep) =  "";
 
@@ -3157,10 +3408,30 @@ foreach $test (@test_list)
 
     my($commandname) = "";
     my($expectrc) = 0;
-    my($rc) = run_command($testno, \$subtestno, \$expectrc, \$commandname);
+    my($rc, $run_extra) = run_command($testno, \$subtestno, \$expectrc, \$commandname, $TEST_STATE);
     my($cmdrc) = $?;
 
-    print ">> rc=$rc cmdrc=$cmdrc\n" if $debug;
+    if ($debug) {
+      print ">> rc=$rc cmdrc=$cmdrc\n";
+      if (defined $run_extra) {
+        foreach my $k (keys %$run_extra) {
+          my $v = defined $run_extra->{$k} ? qq!"$run_extra->{$k}"! : '<undef>';
+          print ">>   $k -> $v\n";
+        }
+      }
+    }
+    $run_extra = {} unless defined $run_extra;
+    foreach my $k (keys %$run_extra) {
+      if (exists $TEST_STATE->{$k}) {
+        my $nv = defined $run_extra->{$k} ? qq!"$run_extra->{$k}"! : 'removed';
+        print ">> override of $k; was $TEST_STATE->{$k}, now $nv\n" if $debug;
+      }
+      if (defined $run_extra->{$k}) {
+        $TEST_STATE->{$k} = $run_extra->{$k};
+      } elsif (exists $TEST_STATE->{$k}) {
+        delete $TEST_STATE->{$k};
+      }
+    }
 
     # Hit EOF after an initial return code number
 
@@ -3189,10 +3460,11 @@ foreach $test (@test_list)
 
       for (;;)
         {
-        print "\nshow stdErr, show stdOut, Continue (without file comparison), or Quit? [Q] ";
+        print "\nshow stdErr, show stdOut, Retry, Continue (without file comparison), or Quit? [Q] ";
         $_ = <T>;
         tests_exit(1) if /^q?$/i;
-        last if /^c$/i;
+        log_failure($log_failed_filename, $testno, "exit code unexpected") if (/^c$/i && $force_continue);
+        last if /^[rc]$/i;
         if (/^e$/i)
           {
           system("$more test-stderr");
@@ -3203,6 +3475,7 @@ foreach $test (@test_list)
           }
         }
 
+      $retry = 1 if /^r$/i;
       $docheck = 0;
       }
 
@@ -3225,10 +3498,11 @@ foreach $test (@test_list)
 
         for (;;)
           {
-          print "\nShow server stdout, Continue, or Quit? [Q] ";
+          print "\nShow server stdout, Retry, Continue, or Quit? [Q] ";
           $_ = <T>;
           tests_exit(1) if /^q?$/i;
-          last if /^c$/i;
+          log_failure($log_failed_filename, $testno, "exit code unexpected") if (/^c$/i && $force_continue);
+          last if /^[rc]$/i;
 
           if (/^s$/i)
             {
@@ -3238,6 +3512,7 @@ foreach $test (@test_list)
             close(S);
             }
           }
+        $retry = 1 if /^r$/i;
         }
       }
     }
@@ -3248,9 +3523,16 @@ foreach $test (@test_list)
   # function returns 0 if all is well, 1 if we should rerun the test (the files
   # have been updated). It does not return if the user responds Q to a prompt.
 
+  if ($retry)
+    {
+    $retry = '0';
+    print (("#" x 79) . "\n");
+    redo;
+    }
+
   if ($docheck)
     {
-    if (check_output() != 0)
+    if (check_output($TEST_STATE->{munge}) != 0)
       {
       print (("#" x 79) . "\n");
       redo;
@@ -3271,4 +3553,4 @@ tests_exit(-1, "No runnable tests selected") if @test_list == 0;
 tests_exit(0);
 
 # End of runtest script
-# vim: set sw=2 :
+# vim: set sw=2 et :