X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/33191679e1a86ba6d9c38a74d0795d00c300f2c5..2760b518e27e06891ec71afd0167fe6f5608f5db:/test/runtest

diff --git a/test/runtest b/test/runtest
index d70b98c64..1243725c5 100755
--- a/test/runtest
+++ b/test/runtest
@@ -1,6 +1,6 @@
-#! /usr/bin/perl -w
-
-# $Cambridge: exim/test/runtest,v 1.37 2010/06/14 20:30:12 jetmore Exp $
+#! /usr/bin/env perl
+# We use env, because in some environments of our build farm
+# the Perl 5.010 interpreter is only reachable via $PATH
 
 ###############################################################################
 # This is the controlling script for the "new" test suite for Exim. It should #
@@ -15,34 +15,62 @@
 # Placed in the Exim CVS: 06 February 2006                                    #
 ###############################################################################
 
-require Cwd;
+#use strict;
+use 5.010;
+use feature 'state';	# included in 5.010
+use warnings;
+
 use Errno;
 use FileHandle;
 use Socket;
+use Time::Local;
+use Cwd;
+use File::Basename;
+use FindBin qw'$RealBin';
 
+use lib "$RealBin/lib";
+use Exim::Runtest;
 
-# Start by initializing some global variables
+use if $ENV{DEBUG} && $ENV{DEBUG} =~ /\bruntest\b/ => ('Smart::Comments' => '####');
 
-$testversion = "4.72 (02-Jun-10)";
 
-$cf = "bin/cf -exact";
-$cr = "\r";
-$debug = 0;
-$force_update = 0;
-$more = "less -XF";
-$optargs = "";
-$save_output = 0;
-$server_opts = "";
-
-$have_ipv4 = 1;
-$have_ipv6 = 1;
-$have_largefiles = 0;
+# Start by initializing some global variables
 
-$test_start = 1;
-$test_end = $test_top = 8999;
-$test_special_top = 9999;
-@test_list = ();
-@test_dirs = ();
+chomp(my $testversion = `git describe --always --dirty 2>&1` || '<unknown>');
+
+# 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
+my $gnutls_dh_bits_normal = 2236;
+
+my $cf = 'bin/cf -exact';
+my $cr = "\r";
+my $debug = 0;
+my $flavour = do {
+  my $f = Exim::Runtest::flavour();
+  (grep { $f eq $_ } Exim::Runtest::flavours()) ? $f : 'FOO';
+};
+my $force_continue = 0;
+my $force_update = 0;
+my $log_failed_filename = 'failed-summary.log';
+my $more = 'less -XF';
+my $optargs = '';
+my $save_output = 0;
+my $server_opts = '';
+my $valgrind = 0;
+
+my $have_ipv4 = 1;
+my $have_ipv6 = 1;
+my $have_largefiles = 0;
+
+my $test_start = 1;
+my $test_end = $test_top = 8999;
+my $test_special_top = 9999;
+my @test_list = ();
+my @test_dirs = ();
 
 
 # Networks to use for DNS tests. We need to choose some networks that will
@@ -55,19 +83,32 @@ $test_special_top = 9999;
 # are defined, so it is trivially possible to change them should that ever
 # become necessary.
 
-$parm_ipv4_test_net = "224";
-$parm_ipv6_test_net = "ff00";
+my $parm_ipv4_test_net = 224;
+my $parm_ipv6_test_net = 'ff00';
 
 # Port numbers are currently hard-wired
 
-$parm_port_n = 1223;         # Nothing listening on this port
-$parm_port_s = 1224;         # Used for the "server" command
-$parm_port_d = 1225;         # Used for the Exim daemon
-$parm_port_d2 = 1226;        # Additional for daemon
-$parm_port_d3 = 1227;        # Additional for daemon
-$parm_port_d4 = 1228;        # Additional for daemon
+my $parm_port_n = 1223;         # Nothing listening on this port
+my $parm_port_s = 1224;         # Used for the "server" command
+my $parm_port_d = 1225;         # Used for the Exim daemon
+my $parm_port_d2 = 1226;        # Additional for daemon
+my $parm_port_d3 = 1227;        # Additional for daemon
+my $parm_port_d4 = 1228;        # Additional for daemon
+my $dynamic_socket;          # allocated later for PORT_DYNAMIC
 
+# Find a suiteable group name for test (currently only 0001
+# uses a group name. A numeric group id would do
+my $parm_mailgroup = Exim::Runtest::mailgroup('mail');
 
+# Manually set locale
+$ENV{LC_ALL} = 'C';
+
+# In some environments USER does not exist, but we need it for some test(s)
+$ENV{USER} = getpwuid($>) if not exists $ENV{USER};
+
+my ($parm_configure_owner, $parm_configure_group);
+my ($parm_ipv4, $parm_ipv6);
+my $parm_hostname;
 
 ###############################################################################
 ###############################################################################
@@ -117,9 +158,17 @@ s?\bPORT_S\b?$parm_port_s?g;
 s?\bTESTNUM\b?$_[0]?g;
 s?(\b|_)V4NET([\._])?$1$parm_ipv4_test_net$2?g;
 s?\bV6NET:?$parm_ipv6_test_net:?g;
+s?\bPORT_DYNAMIC\b?$dynamic_socket->sockport()?eg;
+s?\bMAILGROUP\b?$parm_mailgroup?g;
 }
 
 
+##################################################
+#     Any state to be preserved across tests     #
+##################################################
+
+my $TEST_STATE = {};
+
 
 ##################################################
 #        Subroutine to tidy up and exit          #
@@ -142,6 +191,13 @@ 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 -INT $pid");
+  }
+
 if (opendir(DIR, "spool"))
   {
   my(@spools) = sort readdir(DIR);
@@ -153,7 +209,7 @@ if (opendir(DIR, "spool"))
     chomp($pid = <PID>);
     close(PID);
     print "Tidyup: killing daemon pid=$pid\n";
-    system("sudo rm -f spool/$spool; sudo kill -SIGINT $pid");
+    system("sudo rm -f spool/$spool; sudo kill -INT $pid");
     }
   }
 else
@@ -167,7 +223,10 @@ close(T);
 system("sudo /bin/rm -rf ./spool test-* ./dnszones/*")
   if ($rc == 0 && !$save_output);
 
-system("sudo /bin/rm -rf ./eximdir/*");
+system("sudo /bin/rm -rf ./eximdir/*")
+  if (!$save_output);
+
+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";
 }
@@ -198,14 +257,26 @@ 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);
 }
 
 
@@ -275,9 +346,12 @@ return @yield;
 
 sub munge {
 my($file) = $_[0];
+my($extra) = $_[1];
 my($yield) = 0;
 my(@saved) = ();
 
+local $_;
+
 open(IN, "$file") || tests_exit(-1, "Failed to open $file: $!");
 
 my($is_log) = $file =~ /log/;
@@ -297,8 +371,16 @@ $spid = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
 # that are specific to certain file types, though there are also some of those
 # inline too.
 
-while(<IN>)
+LINE: 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 \*\*\*/;
 
@@ -308,11 +390,15 @@ while(<IN>)
   # 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;
 
   # Replace the Exim version number (may appear in various places)
-  s/Exim \d+\.\d+[\w-]*/Exim x.yz/i;
+  # patchexim should have fixed this for us
+  #s/(Exim) \d+\.\d+[\w_-]*/$1 x.yz/i;
 
   # Replace Exim message ids by a unique series
   s/((?:[^\W_]{6}-){2}[^\W_]{2})
@@ -354,18 +440,16 @@ while(<IN>)
   # 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+/;
 
   # Random local part in callout cache testing
   s/myhost.test.ex-\d+-testing/myhost.test.ex-dddddddd-testing/;
+  s/the.local.host.name-\d+-testing/the.local.host.name-dddddddd-testing/;
 
   # File descriptor numbers may vary
   s/^writing data block fd=\d+/writing data block fd=dddd/;
-  s/running as transport filter: write=\d+ read=\d+/running as transport filter: write=dddd read=dddd/;
+  s/(running as transport filter:) fd_write=\d+ fd_read=\d+/$1 fd_write=dddd fd_read=dddd/;
 
 
   # ======== Dumpdb output ========
@@ -375,7 +459,7 @@ while(<IN>)
   if (/^($date)\s+($date)\s+($date)(\s+\*)?\s*$/)
     {
     my($date1,$date2,$date3,$expired) = ($1,$2,$3,$4);
-    $expired = "" if !defined $expired;
+    $expired = '' if !defined $expired;
     my($increment) = date_seconds($date3) - date_seconds($date2);
 
     # We used to use globally unique replacement values, but timing
@@ -434,12 +518,78 @@ while(<IN>)
   s/\d\d-[A-Z][a-z]{2}-\d{4}\s\d\d:\d\d:\d\d/07-Mar-2000 12:21:52/g;
 
   # Time on queue tolerance
-  s/QT=1s/QT=0s/;
+  s/(QT|D)=1s/$1=0s/;
 
   # Eximstats heading
   s/Exim\sstatistics\sfrom\s\d{4}-\d\d-\d\d\s\d\d:\d\d:\d\d\sto\s
     \d{4}-\d\d-\d\d\s\d\d:\d\d:\d\d/Exim statistics from <time> to <time>/x;
 
+  # Treat ECONNRESET the same as ECONNREFUSED.  At least some systems give
+  # us the former on a new connection.
+  s/(could not connect to .*: Connection) reset by peer$/$1 refused/;
+
+  # ======== 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:AES128-GCM-SHA256:128
+  #   TLSv1:AES256-SHA:256
+  #   TLSv1.1: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\.[12]:/$1TLSv1:/xg;
+  s/\bAES128-GCM-SHA256:128\b/AES256-SHA:256/g;
+  s/\bAES128-GCM-SHA256\b/AES256-SHA/g;
+  s/\bAES256-GCM-SHA384\b/AES256-SHA/g;
+  s/\bDHE-RSA-AES256-SHA\b/AES256-SHA/g;
+
+  # LibreSSL
+  # TLSv1:ECDHE-RSA-CHACHA20-POLY1305:256
+  s/\bECDHE-RSA-CHACHA20-POLY1305\b/AES256-SHA/g;
+
+  # GnuTLS have seen:
+  #   TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256
+  #   TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128
+  #   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:
+  #   ECDHE-RSA-AES256-SHA
+  #   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]:((EC)?DHE_)?RSA_AES_(256|128)_(CBC|GCM)_SHA(1|256|384):(256|128)/TLS1.x:xxxxRSA_AES_256_CBC_SHAnnn:256/g;
+  s/\b(ECDHE-RSA-AES256-SHA|DHE-RSA-AES256-SHA256)\b/AES256-SHA/g;
+
+  # GnuTLS library error message changes
+  s/No certificate was found/The peer did not send any certificate/g;
+#(dodgy test?)  s/\(certificate verification failed\): invalid/\(gnutls_handshake\): The peer did not send any certificate./g;
+  s/\(gnutls_priority_set\): No or insufficient priorities were set/\(gnutls_handshake\): Could not negotiate a supported cipher suite/g;
+
+  # (this new one is a generic channel-read error, but the testsuite
+  # only hits it in one place)
+  s/TLS error on connection \(gnutls_handshake\): Error in the pull function\./a TLS session is required but an attempt to start TLS failed/g;
+
+  # (replace old with new, hoping that old only happens in one situation)
+  s/TLS error on connection to \d{1,3}(.\d{1,3}){3} \[\d{1,3}(.\d{1,3}){3}\] \(gnutls_handshake\): A TLS packet with unexpected length was received./a TLS session is required for ip4.ip4.ip4.ip4 [ip4.ip4.ip4.ip4], but an attempt to start TLS failed/g;
+  s/TLS error on connection from \[127.0.0.1\] \(recv\): A TLS packet with unexpected length was received./TLS error on connection from [127.0.0.1] (recv): The TLS connection was non-properly terminated./g;
+
+  # signature algorithm names
+  s/RSA-SHA1/RSA-SHA/;
+
 
   # ======== Caller's login, uid, gid, home, gecos ========
 
@@ -453,7 +603,7 @@ while(<IN>)
   s/\buid=$parm_caller_uid\b/uid=CALLER_UID/g;
   s/\bgid=$parm_caller_gid\b/gid=CALLER_GID/g;
 
-  s/\bname=$parm_caller_gecos\b/name=CALLER_GECOS/g;
+  s/\bname="?$parm_caller_gecos"?/name=CALLER_GECOS/g;
 
   # When looking at spool files with -Mvh, we will find not only the caller
   # login, but also the uid and gid. It seems that $) in some Perls gives all
@@ -529,6 +679,9 @@ while(<IN>)
   s/waiting for children of \d+/waiting for children of pppp/;
   s/waiting for (\S+) \(\d+\)/waiting for $1 (pppp)/;
 
+  # The spool header file name varies with PID
+  s%^(Writing spool header file: .*/hdr).[0-9]{1,5}%$1.pppp%;
+
   # ======== Port numbers ========
   # Incoming port numbers may vary, but not in daemon startup line.
 
@@ -545,6 +698,10 @@ while(<IN>)
   # Port in host address in spool file output from -Mvh
   s/^-host_address (.*)\.\d+/-host_address $1.9999/;
 
+  if ($dynamic_socket and $dynamic_socket->opened and my $port = $dynamic_socket->sockport) {
+    s/^Connecting to 127\.0\.0\.1 port \K$port/<dynamic port>/;
+  }
+
 
   # ======== Local IP addresses ========
   # The amount of space between "host" and the address in verification output
@@ -560,9 +717,9 @@ while(<IN>)
   s/host\s\Q$parm_ipv4\E\s\[\Q$parm_ipv4\E\]/host ipv4.ipv4.ipv4.ipv4 [ipv4.ipv4.ipv4.ipv4]/;
   s/host\s\Q$parm_ipv6\E\s\[\Q$parm_ipv6\E\]/host ip6:ip6:ip6:ip6:ip6:ip6:ip6:ip6 [ip6:ip6:ip6:ip6:ip6:ip6:ip6:ip6]/;
   s/\b\Q$parm_ipv4\E\b/ip4.ip4.ip4.ip4/g;
-  s/\b\Q$parm_ipv6\E\b/ip6:ip6:ip6:ip6:ip6:ip6:ip6:ip6/g;
+  s/(^|\W)\K\Q$parm_ipv6\E/ip6:ip6:ip6:ip6:ip6:ip6:ip6:ip6/g;
   s/\b\Q$parm_ipv4r\E\b/ip4-reverse/g;
-  s/\b\Q$parm_ipv6r\E\b/ip6-reverse/g;
+  s/(^|\W)\K\Q$parm_ipv6r\E/ip6-reverse/g;
   s/^(\s+host\s\S+\s+\[\S+\]) +$/$1 /;
 
 
@@ -590,10 +747,20 @@ while(<IN>)
   # ======== Other error numbers ========
   s/errno=\d+/errno=dd/g;
 
+  # ======== System Error Messages ======
+  # depending on the underlaying file system the error message seems to differ
+  s/(?: is not a regular file)|(?: has too many links \(\d+\))/ not a regular file or too many links/;
 
   # ======== Output from ls ========
   # Different operating systems use different spacing on long output
-  s/ +/ /g if /^[-rwd]{10} /;
+  #s/ +/ /g if /^[-rwd]{10} /;
+  # (Bug 1226) SUSv3 allows a trailing printable char for modified access method control.
+  # 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.
+  if (s/^([-d](?:[-r][-w][-SsTtx]){3})[.+@]?( +|$)/$1$2/) {
+    s/ +/ /g;
+  }
 
 
   # ======== Message sizes =========
@@ -611,8 +778,8 @@ while(<IN>)
   s/this message = \d+\b/this message = sss/;
   s/Size of headers = \d+/Size of headers = sss/;
   s/sum=(?!0)\d+/sum=dddd/;
-  s/(?<=sum=dddd )count=(?!0)\d+\b/count=dd/;
-  s/(?<=sum=0 )count=(?!0)\d+\b/count=dd/;
+  s/(?<=sum=dddd )count=\d+\b/count=dd/;
+  s/(?<=sum=0 )count=\d+\b/count=dd/;
   s/,S is \d+\b/,S is ddddd/;
   s/\+0100,\d+;/+0100,ddd;/;
   s/\(\d+ bytes written\)/(ddd bytes written)/;
@@ -637,8 +804,8 @@ while(<IN>)
   # numbers, or handle specific bad conditions in different ways, leading to
   # different wording in the error messages, so we cannot compare them.
 
-  s/(TLS error on connection (?:from|to) .*? \(SSL_\w+\): error:)(.*)/$1 <<detail omitted>>/;
-
+  s/(TLS error on connection (?:from .* )?\(SSL_\w+\): error:)(.*)/$1 <<detail omitted>>/;
+  next if /SSL verify error: depth=0 error=certificate not trusted/;
 
   # ======== Maildir things ========
   # timestamp output in maildir processing
@@ -682,6 +849,16 @@ while(<IN>)
   s/^\d\d\d(?=[PFS*])/ddd/;
 
 
+  # ========= Exim lookups ==================
+  # Lookups have a char which depends on the number of lookup types compiled in,
+  # in stderr output.  Replace with a "0".  Recognising this while avoiding
+  # other output is fragile; perhaps the debug output should be revised instead.
+  s%(?<!sqlite)(?<!lsearch\*@)(?<!lsearch\*)(?<!lsearch)[0-?]TESTSUITE/aux-fixed/%0TESTSUITE/aux-fixed/%g;
+
+  # ==========================================================
+  # MIME boundaries in RFC3461 DSN messages
+  s/\d{8,10}-eximdsn-\d+/NNNNNNNNNN-eximdsn-MMMMMMMMMM/;
+
   # ==========================================================
   # Some munging is specific to the specific file types
 
@@ -710,6 +887,16 @@ while(<IN>)
         next;
         }
       }
+
+    # openssl version variances
+    next if /^SSL info: unknown state/;
+    next if /^SSL info: SSLv2\/v3 write client hello A/;
+    next if /^SSL info: SSLv3 read server key exchange A/;
+    next if /SSL verify error: depth=0 error=certificate not trusted/;
+    s/SSL3_READ_BYTES/ssl3_read_bytes/i;
+
+    # gnutls version variances
+    next if /^Error in the pull function./;
     }
 
   # ======== stderr ========
@@ -727,7 +914,7 @@ while(<IN>)
     # IP address lookups use gethostbyname() when IPv6 is not supported,
     # and gethostbyname2() or getipnodebyname() when it is.
 
-    s/\bgethostbyname2?|\bgetipnodebyname/get[host|ipnode]byname[2]/;
+    s/\b(gethostbyname2?|\bgetipnodebyname)(\(af=inet\))?/get[host|ipnode]byname[2]/;
 
     # drop gnutls version strings
     next if /GnuTLS compile-time version: \d+[\.\d]+$/;
@@ -737,6 +924,47 @@ while(<IN>)
     next if /OpenSSL compile-time version: OpenSSL \d+[\.\da-z]+/;
     next if /OpenSSL runtime version: OpenSSL \d+[\.\da-z]+/;
 
+    # drop lookups
+    next if /^Lookups \(built-in\):/;
+    next if /^Loading lookup modules from/;
+    next if /^Loaded \d+ lookup modules/;
+    next if /^Total \d+ lookups/;
+
+    # drop compiler information
+    next if /^Compiler:/;
+
+    # and the ugly bit
+    # different libraries will have different numbers (possibly 0) of follow-up
+    # lines, indenting with more data
+    if (/^Library version:/) {
+      while (1) {
+	$_ = <IN>;
+	next if /^\s/;
+	goto RESET_AFTER_EXTRA_LINE_READ;
+      }
+    }
+
+    # drop other build-time controls emitted for debugging
+    next if /^WHITELIST_D_MACROS:/;
+    next if /^TRUSTED_CONFIG_LIST:/;
+
+    # As of Exim 4.74, we log when a setgid fails; because we invoke Exim
+    # with -be, privileges will have been dropped, so this will always
+    # be the case
+    next if /^changing group to \d+ failed: (Operation not permitted|Not owner)/;
+
+    # 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/;
+
     # We have to omit the localhost ::1 address so that all is well in
     # the IPv4-only case.
 
@@ -764,7 +992,7 @@ while(<IN>)
     # are unset, because tls ain't always there.
 
     next if /in\s(?:tls_advertise_hosts\?|hosts_require_tls\?)
-                \sno\s\(option\sunset\)/x;
+                \sno\s\((option\sunset|end\sof\slist)\)/x;
 
     # Skip auxiliary group lists because they will vary.
 
@@ -809,6 +1037,53 @@ while(<IN>)
       while (<IN>) { last if !/^\s/; }
       }
 
+    # remote port numbers vary
+    s/(Connection request from 127.0.0.1 port) \d{1,5}/$1 sssss/;
+
+    # Skip hosts_require_dane checks when the options
+    # are unset, because dane ain't always there.
+
+    next if /in\shosts_require_dane\?\sno\s\(option\sunset\)/x;
+
+    # SUPPORT_PROXY
+    next if /host in hosts_proxy\?/;
+
+    # Experimental_International
+    next if / in smtputf8_advertise_hosts\? no \(option unset\)/;
+
+    # Environment cleaning
+    next if /\w+ in keep_environment\? (yes|no)/;
+
+    # Sizes vary with test hostname
+    s/^cmd buf flush \d+ bytes$/cmd buf flush ddd bytes/;
+
+    # Spool filesystem free space changes on different systems.
+    s/^((?:spool|log) directory space =) -?\d+K (inodes =)\s*-?\d+/$1 nnnnnK $2 nnnnn/;
+
+    # Non-TLS builds have different expansions for received_header_text
+    if (s/(with \$received_protocol)\}\} \$\{if def:tls_cipher \{\(\$tls_cipher\)\n$/$1/)
+      {
+      $_ .= <IN>;
+      s/\s+\}\}(?=\(Exim )/\}\} /;
+      }
+    if (/^  condition: def:tls_cipher$/)
+      {
+      <IN>; <IN>; <IN>; <IN>; <IN>; <IN>;
+      <IN>; <IN>; <IN>; <IN>; <IN>; next;
+      }
+
+    # Not all platforms build with DKIM enabled
+    next if /^PDKIM >> Body data for hash, canonicalized/;
+
+    # Not all platforms support TCP Fast Open, and the compile omits the check
+    if (s/\S+ in hosts_try_fastopen\? no \(option unset\)\n$//)
+      {
+      $_ .= <IN>;
+      s/ \.\.\. >>> / ... /;
+      }
+
+    next if /^(ppppp )?setsockopt FASTOPEN: Protocol not available$/;
+
     # When Exim is checking the size of directories for maildir, it uses
     # the check_dir_size() function to scan directories. Of course, the order
     # of the files that are obtained using readdir() varies from system to
@@ -844,13 +1119,24 @@ while(<IN>)
                 /^log selectors =/ ||
                 /^cwd=/ ||
                 /^Fixed never_users:/ ||
+		/^Configure owner:/ ||
                 /^Size of off_t:/
                 );
+
+
       }
 
     next;
     }
 
+  # ======== log ========
+
+  elsif ($is_log)
+    {
+    # Berkeley DB version differences
+    next if / Berkeley DB error: /;
+    }
+
   # ======== All files other than stderr ========
 
   print MUNGED;
@@ -869,16 +1155,54 @@ return $yield;
 
 # Arguments: [0] the prompt string
 #            [1] if there is a U in the prompt and $force_update is true
-# Returns:   nothing (it sets $_)
+#            [2] if there is a C in the prompt and $force_continue is true
+# Returns:   returns the answer
+
+sub interact {
+  my ($prompt, $have_u, $have_c) = @_;
 
-sub interact{
-print $_[0];
-if ($_[1]) { $_ = "u"; print "... update forced\n"; }
-  else { $_ = <T>; }
+  print $prompt;
+
+  if ($have_u) {
+    print "... update forced\n";
+    return 'u';
+  }
+
+  if ($have_c) {
+    print "... continue forced\n";
+    return 'c';
+  }
+
+  return lc <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, $testno, $detail) = @_;
+
+  open(my $fh, '>>', $logfile) or return;
+
+  print $fh "Test $testno "
+        . (defined $detail ? "$detail " : '')
+        . "failed\n";
+}
+
+
 
 ##################################################
 #    Subroutine to compare one output file       #
@@ -893,19 +1217,26 @@ 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 were updated (=> re-compare)
+#             1 comparison failed; files may have been updated (=> re-compare)
 #
 # 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.
 
-if (! -e $sf)
+# we check if there is a flavour specific file, but we remember
+# the original file name as "generic"
+$sf_generic = $sf;
+$sf_flavour = "$sf_generic.$flavour";
+$sf_current = -e $sf_flavour ? $sf_flavour : $sf_generic;
+
+if (! -e $sf_current)
   {
   return 0 if (! -s $rf && (! defined $rsf || ! -s $rsf));
 
@@ -915,9 +1246,9 @@ if (! -e $sf)
 
   for (;;)
     {
-    print "Continue, Show, or Quit? [Q] ";
-    $_ = <T>;
-    tests_exit(1) if /^q?$/i;
+    $_ = interact('Continue, Show, or Quit? [Q] ', undef, $force_continue);
+    tests_exit(1) if /^q?$/;
+    log_failure($log_failed_filename, $testno, $rf) if (/^c$/ && $force_continue);
     return 0 if /^c$/i;
     last if (/^s$/);
     }
@@ -936,23 +1267,28 @@ if (! -e $sf)
   print "\n";
   for (;;)
     {
-    interact("Continue, Update & retry, Quit? [Q] ", $force_update);
-    tests_exit(1) if /^q?$/i;
+    $_ = interact('Continue, Update & retry, Quit? [Q] ', $force_update, $force_continue);
+    tests_exit(1) if /^q?$/;
+    log_failure($log_failed_filename, $testno, $rsf) if (/^c$/ && $force_continue);
     return 0 if /^c$/i;
     last if (/^u$/i);
     }
   }
 
+#### $_
+
 # Control reaches here if either (a) there is a saved file ($sf), or (b) there
 # was a request to create a saved file. First, create the munged file from any
 # data that does exist.
 
-open(MUNGED, ">$mf") || tests_exit(-1, "Failed to open $mf: $!");
-my($truncated) = munge($rf) if -e $rf;
+open(MUNGED, '>', $mf) || tests_exit(-1, "Failed to open $mf: $!");
+my($truncated) = munge($rf, $extra) if -e $rf;
+
+# Append the raw server log, if it is non-empty
 if (defined $rsf && -e $rsf)
   {
   print MUNGED "\n******** SERVER ********\n";
-  $truncated |= munge($rsf);
+  $truncated |= munge($rsf, $extra);
   }
 close(MUNGED);
 
@@ -970,7 +1306,7 @@ close(MUNGED);
 # a result of parallel deliveries. We load the munged file and sort sequences
 # of delivery lines.
 
-if (-e $sf)
+if (-e $sf_current)
   {
   # Deal with truncated text items
 
@@ -978,10 +1314,10 @@ if (-e $sf)
     {
     my(@munged, @saved, $i, $j, $k);
 
-    open(MUNGED, "$mf") || tests_exit(-1, "Failed to open $mf: $!");
+    open(MUNGED, $mf) || tests_exit(-1, "Failed to open $mf: $!");
     @munged = <MUNGED>;
     close(MUNGED);
-    open(SAVED, "$sf") || tests_exit(-1, "Failed to open $sf: $!");
+    open(SAVED, $sf_current) || tests_exit(-1, "Failed to open $sf_current: $!");
     @saved = <SAVED>;
     close(SAVED);
 
@@ -1003,7 +1339,7 @@ if (-e $sf)
         }
       }
 
-    open(MUNGED, ">$mf") || tests_exit(-1, "Failed to open $mf: $!");
+    open(MUNGED, '>', $mf) || tests_exit(-1, "Failed to open $mf: $!");
     for ($i = 0; $i < @munged; $i++)
       { print MUNGED $munged[$i]; }
     close(MUNGED);
@@ -1015,7 +1351,7 @@ if (-e $sf)
     {
     my(@munged, $i, $j);
 
-    open(MUNGED, "$mf") || tests_exit(-1, "Failed to open $mf: $!");
+    open(MUNGED, $mf) || tests_exit(-1, "Failed to open $mf: $!");
     @munged = <MUNGED>;
     close(MUNGED);
 
@@ -1043,76 +1379,175 @@ if (-e $sf)
 
   # Do the comparison
 
-  return 0 if (system("$cf '$mf' '$sf' >test-cf") == 0);
+  return 0 if (system("$cf '$mf' '$sf_current' >test-cf") == 0);
 
   # Handle comparison failure
 
-  print "** Comparison of $mf with $sf failed";
+  print "** Comparison of $mf with $sf_current failed";
   system("$more test-cf");
 
   print "\n";
   for (;;)
     {
-    interact("Continue, Update & retry, Quit? [Q] ", $force_update);
-    tests_exit(1) if /^q?$/i;
+    $_ = interact('Continue, Retry, Update current'
+	. ($sf_current ne $sf_flavour  ? "/Save for flavour '$flavour'" : '')
+	. ' & retry, Quit? [Q] ', $force_update, $force_continue);
+    tests_exit(1) if /^q?$/;
+    log_failure($log_failed_filename, $testno, $sf_current) if (/^c$/i && $force_continue);
     return 0 if /^c$/i;
-    last if (/^u$/i);
+    return 1 if /^r$/i;
+    last if (/^[us]$/i);
     }
   }
 
 # Update or delete the saved file, and give the appropriate return code.
 
 if (-s $mf)
-  { tests_exit(-1, "Failed to cp $mf $sf") if system("cp '$mf' '$sf'") != 0; }
+  {
+	my $sf = /^u/i ? $sf_current : $sf_flavour;
+		tests_exit(-1, "Failed to cp $mf $sf") if system("cp '$mf' '$sf'") != 0;
+  }
 else
-  { tests_exit(-1, "Failed to unlink $sf") if !unlink($sf); }
+  {
+	# if we deal with a flavour file, we can't delete it, because next time the generic
+	# file would be used again
+	if ($sf_current eq $sf_flavour) {
+		open(FOO, ">$sf_current");
+		close(FOO);
+	}
+	else {
+		tests_exit(-1, "Failed to unlink $sf_current") if !unlink($sf_current);
+	}
+  }
 
 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.
+# Triggered by a scriptfile line "munge <name>"
+##################################################
+$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/' },
+
+    'optional_events' =>
+    { 'stdout' => '/event_action =/' },
+
+    'optional_ocsp' =>
+    { 'stderr' => '/127.0.0.1 in hosts_requ(ire|est)_ocsp/' },
+
+    'optional_cert_hostnames' =>
+    { 'stderr' => '/in tls_verify_cert_hostnames\? no/' },
+
+    'loopback' =>
+    { 'stdout' => 's/[[](127\.0\.0\.1|::1)]/[IP_LOOPBACK_ADDR]/' },
+
+    'scanfile_size' =>
+    { 'stdout' => 's/(Content-length:) \d\d\d/$1 ddd/' },
+
+    'delay_1500' =>
+    { 'stderr' => 's/(1[5-9]|23\d)\d\d msec/ssss msec/' },
+
+    'tls_anycipher' =>
+    { 'mainlog' => 's/ X=TLS\S+ / X=TLS_proto_and_cipher /' },
+
+    'debug_pid' =>
+    { 'stderr' => 's/(^\s{0,4}|(?<=Process )|(?<=child ))\d{1,5}/ppppp/g' },
+
+    'optional_dsn_info' =>
+    { 'mail' => '/^(X-(Remote-MTA-(smtp-greeting|helo-response)|Exim-Diagnostic|(body|message)-linecount):|Remote-MTA: X-ip;)/'
+    },
+
+    'optional_config' =>
+    { 'stdout' => '/^(
+                  dkim_(canon|domain|private_key|selector|sign_headers|strict)
+                  |gnutls_require_(kx|mac|protocols)
+                  |hosts_(requ(est|ire)|try)_(dane|ocsp)
+                  |hosts_(avoid|nopass|require|verify_avoid)_tls
+                  |socks_proxy
+                  |tls_[^ ]*
+                  )($|[ ]=)/x' },
+
+    'sys_bindir' =>
+    { 'mainlog' => 's%/(usr/)?bin/%SYSBINDIR/%' },
+
+    'sync_check_data' =>
+    { 'mainlog'   => 's/^(.* SMTP protocol synchronization error .* next input=.{8}).*$/$1<suppressed>/',
+      'rejectlog' => 's/^(.* SMTP protocol synchronization error .* next input=.{8}).*$/$1<suppressed>/'},
+
+    'debuglog_stdout' =>
+    { 'stdout' => 's/^\d\d:\d\d:\d\d\s+\d+ //;
+                  s/Process \d+ is ready for new message/Process pppp is ready for new message/'
+    },
+
+    'timeout_errno' =>		# actual errno differs Solaris vs. Linux
+    { 'mainlog' => 's/(host deferral .* errno) <\d+> /$1 <EEE> /' },
+  };
+
+
 ##################################################
 #    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 single custom munge to run.
 # Returns:   0 if the output compared equal
-#            1 if files were updated and the test must be re-run
+#            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 (!$stderr_skip)
@@ -1120,7 +1555,8 @@ if (!$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.
@@ -1159,7 +1595,8 @@ 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"};
     }
 
@@ -1172,15 +1609,16 @@ if (! $message_skip)
 
     for (;;)
       {
-      interact("Continue, Update & retry, or Quit? [Q] ", $force_update);
-      tests_exit(1) if /^q?$/i;
-      last if /^c$/i;
+      $_ = interact('Continue, Update & retry, or Quit? [Q] ', $force_update, $force_continue);
+      tests_exit(1) if /^q?$/;
+      log_failure($log_failed_filename, $testno, "missing email") if (/^c$/ && $force_continue);
+      last if /^c$/;
 
       # For update, we not only have to unlink the file, but we must also
       # remove it from the @oldmails vector, as otherwise it will still be
       # checked for when we re-run the test.
 
-      if (/^u$/i)
+      if (/^u$/)
         {
         foreach $key (keys %expected_mails)
           {
@@ -1229,7 +1667,8 @@ 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"};
       }
     }
@@ -1254,10 +1693,11 @@ if (! $msglog_skip)
 
     for (;;)
       {
-      interact("Continue, Update, or Quit? [Q] ", $force_update);
-      tests_exit(1) if /^q?$/i;
-      last if /^c$/i;
-      if (/^u$/i)
+      $_ = interact('Continue, Update, or Quit? [Q] ', $force_update, $force_continue);
+      tests_exit(1) if /^q?$/;
+      log_failure($log_failed_filename, $testno, "missing msglog") if (/^c$/ && $force_continue);
+      last if /^c$/;
+      if (/^u$/)
         {
         foreach $key (keys %expected_msglogs)
           {
@@ -1314,19 +1754,26 @@ system("$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;
 
+our %ENV = map { $_ => $ENV{$_} } grep { /^(?:USER|SHELL|PATH|TERM|EXIM_TEST_.*)$/ } keys %ENV;
+
 if (/^(\d+)\s*$/)                # Handle unusual return code
   {
   my($r) = $_[2];
@@ -1396,26 +1843,57 @@ if (/^dump\s+(\S+)/)
   my(@temp);
   print ">> ./eximdir/exim_dumpdb $parm_cwd/spool $which\n" if $debug;
   open(IN, "./eximdir/exim_dumpdb $parm_cwd/spool $which |");
-  @temp = <IN>;
-  close(IN);
-  if ($which eq "callout")
+  open(OUT, ">>test-stdout");
+  print OUT "+++++++++++++++++++++++++++\n";
+
+  if ($which eq "retry")
     {
+    $/ = "\n  ";
+    @temp = <IN>;
+    $/ = "\n";
+
     @temp = sort {
-                 my($aa) = substr $a, 21;
-                 my($bb) = substr $b, 21;
-                 return $aa cmp $bb;
+                   my($aa) = split(' ', $a);
+                   my($bb) = split(' ', $b);
+                   return $aa cmp $bb;
                  } @temp;
+
+    foreach $item (@temp)
+      {
+      $item =~ s/^\s*(.*)\n(.*)\n?\s*$/$1\n$2/m;
+      print OUT "  $item\n";
+      }
     }
-  open(OUT, ">>test-stdout");
-  print OUT "+++++++++++++++++++++++++++\n";
-  print OUT @temp;
+  else
+    {
+    @temp = <IN>;
+    if ($which eq "callout")
+      {
+      @temp = sort {
+                   my($aa) = substr $a, 21;
+                   my($bb) = substr $b, 21;
+                   return $aa cmp $bb;
+                   } @temp;
+      }
+    print OUT @temp;
+    }
+
+  close(IN);
   close(OUT);
   return 1;
   }
 
 
-# The "echo" command is a way of writing comments to the screen.
+# verbose comments start with ###
+if (/^###\s/) {
+  for my $file (qw(test-stdout test-stderr test-stderr-server test-stdout-server)) {
+    open my $fh, '>>', $file or die "Can't open >>$file: $!\n";
+    say {$fh} $_;
+  }
+  return 0;
+}
 
+# The "echo" command is a way of writing comments to the screen.
 if (/^echo\s+(.*)$/)
   {
   print "$1\n";
@@ -1482,9 +1960,10 @@ 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;
   }
 
@@ -1495,11 +1974,27 @@ 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 -INT $pid");
+      wait;
+      }
+    } else {
+    $pid = `cat $parm_cwd/spool/exim-daemon.*`;
+    if ($pid)
+      {
+      run_system("sudo /bin/kill -INT $pid");
+      close DAEMONCMD;                                   # Waits for process
+      }
+    }
+    run_system("sudo /bin/rm -f spool/exim-daemon.*");
+  return (1, $return_extra);
   }
 
 
@@ -1514,6 +2009,18 @@ 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.
 
@@ -1540,7 +2047,7 @@ if (/^sleep\s+(.*)$/)
 # Various Unix management commands are recognized
 
 if (/^(ln|ls|du|mkdir|mkfifo|touch|cp|cat)\s/ ||
-    /^sudo (rmdir|rm|chown|chmod)\s/)
+    /^sudo\s(rmdir|rm|mv|chown|chmod)\s/)
   {
   run_system("$_ >>test-stdout 2>>test-stderr");
   return 1;
@@ -1561,10 +2068,12 @@ if (/^(ln|ls|du|mkdir|mkfifo|touch|cp|cat)\s/ ||
 # command, triggered by $server_pid being non-zero. The server sends its output
 # to a different file. The variable $server_opts, if not empty, contains
 # options to disable IPv4 or IPv6 if necessary.
+# This works because "server" swallows its stdin before waiting for a connection.
 
 if (/^server\s+(.*)$/)
   {
-  $cmd = "./bin/server $server_opts $1 >>test-stdout-server";
+  $pidfile = "$parm_cwd/aux-var/server-daemon.pid";
+  $cmd = "./bin/server $server_opts -oP $pidfile $1 >>test-stdout-server";
   print ">> $cmd\n" if ($debug);
   $server_pid = open SERVERCMD, "|$cmd" || tests_exit(-1, "Failed to run $cmd");
   SERVERCMD->autoflush(1);
@@ -1578,10 +2087,9 @@ if (/^server\s+(.*)$/)
   print SERVERCMD "++++\n"; # Send end to server; can't send EOF yet
                             # because close() waits for the process.
 
-  # This gives the server time to get started; otherwise the next
+  # Interlock the server startup; otherwise the next
   # process may not find it there when it expects it.
-
-  select(undef, undef, undef, 0.5);
+  while (! stat("$pidfile") ) { select(undef, undef, undef, 0.3); }
   return 3;
   }
 
@@ -1622,7 +2130,7 @@ if (/^(cat)?write\s+(\S+)(?:\s+(.*))?\s*$/)
     while (scalar @sizes > 0)
       {
       ($count,$len,$leadin) = (shift @sizes) =~ /(\d+)x(\d+)(?:=(.*))?/;
-      $leadin = "" if !defined $leadin;
+      $leadin = '' if !defined $leadin;
       $leadin =~ s/_/ /g;
       $len -= length($leadin) + 1;
       while ($count-- > 0)
@@ -1678,12 +2186,12 @@ if (/^client/ || /^(sudo\s+)?perl\b/)
 # not drop privilege when -C and -D options are present. To run the exim
 # command as root, we use sudo.
 
-elsif (/^([A-Z_]+=\S+\s+)?(\d+)?\s*(sudo\s+)?exim(_\S+)?\s+(.*)$/)
+elsif (/^((?i:[A-Z\d_]+=\S+\s+)+)?(\d+)?\s*(sudo(?:\s+-u\s+(\w+))?\s+)?exim(_\S+)?\s+(.*)$/)
   {
-  $args = $5;
-  my($envset) = (defined $1)? $1      : "";
-  my($sudo)   = (defined $3)? "sudo " : "";
-  my($special)= (defined $4)? $4      : "";
+  $args = $6;
+  my($envset) = (defined $1)? $1      : '';
+  my($sudo)   = (defined $3)? "sudo " . (defined $4 ? "-u $4 ":'')  : '';
+  my($special)= (defined $5)? $5      : '';
   $wait_time  = (defined $2)? $2      : 0;
 
   # Return 2 rather than 1 afterwards
@@ -1725,8 +2233,12 @@ elsif (/^([A-Z_]+=\S+\s+)?(\d+)?\s*(sudo\s+)?exim(_\S+)?\s+(.*)$/)
 
     # Done backwards just in case there are more than 9
 
-    my($i);
-    for ($i = @msglist; $i > 0; $i--) { $args =~ s/\$msg$i/$msglist[$i-1]/g; }
+    for (my $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")
+        unless $force_continue;
+      }
     }
 
   # If -d is specified in $optargs, remove it from $args; i.e. let
@@ -1734,11 +2246,13 @@ elsif (/^([A-Z_]+=\S+\s+)?(\d+)?\s*(sudo\s+)?exim(_\S+)?\s+(.*)$/)
 
   $args =~ s/(?:^|\s)-d\S*// if $optargs =~ /(?:^|\s)-d/;
 
-  $cmd = "$envset$sudo$parm_cwd/eximdir/exim$special$optargs " .
+  my $opt_valgrind = $valgrind ? "valgrind --leak-check=yes --suppressions=$parm_cwd/aux-fixed/valgrind.supp " : '';
+
+  $cmd = "$envset$sudo$opt_valgrind" .
+         "$parm_cwd/eximdir/exim$special$optargs " .
          "-DEXIM_PATH=$parm_cwd/eximdir/exim$special " .
          "-C $parm_cwd/test-config $args " .
          ">>test-stdout 2>>test-stderr";
-
   # If the command is starting an Exim daemon, we run it in the same
   # way as the "server" command above, that is, we don't want to wait
   # for the process to finish. That happens when "killdaemon" is obeyed later
@@ -1752,6 +2266,7 @@ elsif (/^([A-Z_]+=\S+\s+)?(\d+)?\s*(sudo\s+)?exim(_\S+)?\s+(.*)$/)
 
   if ($cmd =~ /\s-DSERVER=server\s/ && $cmd !~ /\s-DNOTDAEMON\s/)
     {
+    $pidfile = "$parm_cwd/spool/exim-daemon.pid";
     if ($debug) { printf ">> daemon: $cmd\n"; }
     run_system("sudo mkdir spool/log 2>/dev/null");
     run_system("sudo chown $parm_eximuser:$parm_eximgroup spool/log");
@@ -1762,16 +2277,91 @@ elsif (/^([A-Z_]+=\S+\s+)?(\d+)?\s*(sudo\s+)?exim(_\S+)?\s+(.*)$/)
     # file is written to the spool directory, in case the Exim binary was
     # built with PID_FILE_PATH pointing somewhere else.
 
-    $cmd =~ s!\s-bd\s! -bdf -oP $parm_cwd/spool/exim-daemon.pid !;
+    if ($cmd =~ /\s-oP\s/)
+      {
+      ($pidfile = $cmd) =~ s/^.*-oP ([^ ]+).*$/$1/;
+      $cmd =~ s!\s-bd\s! -bdf !;
+      }
+    else
+      {
+      $pidfile = "$parm_cwd/spool/exim-daemon.pid";
+      $cmd =~ s!\s-bd\s! -bdf -oP $pidfile !;
+      }
     print ">> |${cmd}-server\n" if ($debug);
     open DAEMONCMD, "|${cmd}-server" || tests_exit(-1, "Failed to run $cmd");
     DAEMONCMD->autoflush(1);
     while (<SCRIPT>) { $lineno++; last if /^\*{4}\s*$/; }   # Ignore any input
-    select(undef, undef, undef, 0.3);             # Let the daemon get going
+
+    # Interlock with daemon startup
+    while (! stat("$pidfile") ) { select(undef, undef, undef, 0.3); }
     return 3;                                     # Don't wait
     }
+  elsif ($cmd =~ /\s-DSERVER=wait:(\d+)\s/)
+    {
+
+    # The port and the $dynamic_socket was already allocated while parsing the
+    # script file, where -DSERVER=wait:PORT_DYNAMIC was encountered.
+
+    my $listen_port = $1;
+    if ($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 $pid = fork();
+    if (not defined $pid) { die "** fork failed: $!\n" }
+    if (not $pid) {
+      close(STDIN);
+      open(STDIN, '<&', $dynamic_socket) or die "** dup sock to stdin failed: $!\n";
+      close($dynamic_socket);
+      print "[$$]>> ${cmd}-server\n" if ($debug);
+      exec "exec ${cmd}-server";
+      die "Can't exec ${cmd}-server: $!\n";
+    }
+    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
+    }
   }
 
+# The "background" command is run but not waited-for, like exim -DSERVER=server.
+# One script line is read and fork-exec'd.  The PID is stored for a later
+# killdaemon.
+
+elsif (/^background$/)
+  {
+  my $line;
+#  $pidfile = "$parm_cwd/aux-var/server-daemon.pid";
+
+  $_ = <SCRIPT>; $lineno++;
+  chomp;
+  $line = $_;
+  if ($debug) { printf ">> daemon: $line >>test-stdout 2>>test-stderr\n"; }
+
+  my $pid = fork();
+  if (not defined $pid) { die "** fork failed: $!\n" }
+  if (not $pid) {
+    print "[$$]>> ${line}\n" if ($debug);
+    close(STDIN);
+    open(STDIN, "<", "test-stdout");
+    close(STDOUT);
+    open(STDOUT, ">>", "test-stdout");
+    close(STDERR);
+    open(STDERR, ">>", "test-stderr-server");
+    exec "exec ${line}";
+    exit(1);
+  }
+
+#  open(my $fh, ">", $pidfile) ||
+#      tests_exit(-1, "Failed to open $pidfile: $!");
+#  printf($fh, "%d\n", $pid);
+#  close($fh);
+
+  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
+  }
+
+
 
 # Unknown command
 
@@ -1784,7 +2374,7 @@ else { tests_exit(-1, "Command unrecognized in line $lineno: $_"); }
 # -DSERVER=server add "-server" to the command, where it will adjoin the name
 # for the stderr file. See comment above about the use of -DSERVER.
 
-$stderrsuffix = ($cmd =~ /\s-DSERVER=server\s/)? "-server" : "";
+$stderrsuffix = ($cmd =~ /\s-DSERVER=server\s/)? "-server" : '';
 print ">> |${cmd}${stderrsuffix}\n" if ($debug);
 open CMD, "|${cmd}${stderrsuffix}" || tests_exit(1, "Failed to run $cmd");
 
@@ -1822,7 +2412,7 @@ return $yield;            # Ran command and waited
 ###############################################################################
 ###############################################################################
 
-# Here beginneth the Main Program ...
+# Here begins the Main Program ...
 
 ###############################################################################
 ###############################################################################
@@ -1831,12 +2421,28 @@ return $yield;            # Ran command and waited
 autoflush STDOUT 1;
 print "Exim tester $testversion\n";
 
+# extend the PATH with .../sbin
+# we map all (.../bin) to (.../sbin:.../bin)
+$ENV{PATH} = do {
+  my %seen = map { $_, 1 } split /:/, $ENV{PATH};
+  join ':' => map { m{(.*)/bin$}
+                ? ( $seen{"$1/sbin"} ? () : ("$1/sbin"), $_)
+                : ($_) }
+      split /:/, $ENV{PATH};
+};
+
+##################################################
+#      Some tests check created file modes       #
+##################################################
+
+umask 022;
+
 
 ##################################################
 #       Check for the "less" command             #
 ##################################################
 
-$more = "more" if system("which less >/dev/null 2>&1") != 0;
+$more = 'more' if system('which less >/dev/null 2>&1') != 0;
 
 
 
@@ -1845,7 +2451,7 @@ $more = "more" if system("which less >/dev/null 2>&1") != 0;
 ##################################################
 
 print "You need to have sudo access to root to run these tests. Checking ...\n";
-if (system("sudo date >/dev/null") != 0)
+if (system('sudo true >/dev/null') != 0)
   {
   die "** Test for sudo failed: testing abandoned.\n";
   }
@@ -1861,10 +2467,11 @@ else
 ##################################################
 
 # If the first character of the first argument is '/', the argument is taken
-# as the path to the binary.
+# as the path to the binary. If the first argument does not start with a
+# '/' but exists in the file system, it's assumed to be the Exim binary.
 
-$parm_exim = (@ARGV > 0 && $ARGV[0] =~ ?^/?)? shift @ARGV : "";
-print "Exim binary is $parm_exim\n" if $parm_exim ne "";
+($parm_exim, @ARGV) = Exim::Runtest::exim_binary(@ARGV);
+print "Exim binary is $parm_exim\n" if $parm_exim ne '';
 
 
 
@@ -1879,14 +2486,19 @@ print "Exim binary is $parm_exim\n" if $parm_exim ne "";
 while (@ARGV > 0 && $ARGV[0] =~ /^-/)
   {
   my($arg) = shift @ARGV;
-  if ($optargs eq "")
+  if ($optargs eq '')
     {
     if ($arg eq "-DEBUG")  { $debug = 1; $cr = "\n"; next; }
     if ($arg eq "-DIFF")   { $cf = "diff -u"; next; }
+    if ($arg eq "-CONTINUE"){$force_continue = 1;
+                             $more = "cat";
+                             next; }
     if ($arg eq "-UPDATE") { $force_update = 1; next; }
     if ($arg eq "-NOIPV4") { $have_ipv4 = 0; next; }
     if ($arg eq "-NOIPV6") { $have_ipv6 = 0; next; }
     if ($arg eq "-KEEP")   { $save_output = 1; next; }
+    if ($arg eq "-VALGRIND")   { $valgrind = 1; next; }
+    if ($arg =~ /^-FLAVOU?R$/) { $flavour = shift; next; }
     }
   $optargs .= " $arg";
   }
@@ -1925,58 +2537,9 @@ $parm_cwd = Cwd::getcwd();
 # takes precedence; otherwise exim-snapshot takes precedence over any numbered
 # releases.
 
-if ($parm_exim eq "")
-  {
-  my($use_srcdir) = "";
-
-  opendir DIR, ".." || die "** Failed to opendir \"..\": $!\n";
-  while ($f = readdir(DIR))
-    {
-    my($srcdir);
-
-    # Try this directory if it is "exim4" or if it is exim-snapshot or exim-n.m
-    # possibly followed by -RCx where n.m is greater than any previously tried
-    # directory. Thus, we should choose the highest version of Exim that has
-    # been compiled.
-
-    if ($f eq "exim4" || $f eq "exim-snapshot")
-      { $srcdir = $f; }
-    else
-      { $srcdir = $f
-        if ($f =~ /^exim-\d+\.\d+(-RC\d+)?$/ && $f gt $use_srcdir); }
-
-    # Look for a build directory with a binary in it. If we find a binary,
-    # accept this source directory.
-
-    if ($srcdir)
-      {
-      opendir SRCDIR, "../$srcdir" ||
-        die "** Failed to opendir \"$cwd/../$srcdir\": $!\n";
-      while ($f = readdir(SRCDIR))
-        {
-        if ($f =~ /^build-/ && -e "../$srcdir/$f/exim")
-          {
-          $use_srcdir = $srcdir;
-          $parm_exim = "$cwd/../$srcdir/$f/exim";
-          $parm_exim =~ s'/[^/]+/\.\./'/';
-          last;
-          }
-        }
-      closedir(SRCDIR);
-      }
-
-    # If we have found "exim4" or "exim-snapshot", that takes precedence.
-    # Otherwise, continue to see if there's a later version.
-
-    last if $use_srcdir eq "exim4" || $use_srcdir eq "exim-snapshot";
-    }
-  closedir(DIR);
-  print "Exim binary found in $parm_exim\n" if $parm_exim ne "";
-  }
-
 # If $parm_exim is still empty, ask the caller
 
-if ($parm_exim eq "")
+if ($parm_exim eq '')
   {
   print "** Did not find an Exim binary to test\n";
   for ($i = 0; $i < 5; $i++)
@@ -1994,7 +2557,7 @@ if ($parm_exim eq "")
       print "** $trybin does not exist\n";
       }
     }
-  die "** Too many tries\n" if $parm_exim eq "";
+  die "** Too many tries\n" if $parm_exim eq '';
   }
 
 
@@ -2003,13 +2566,45 @@ if ($parm_exim eq "")
 #          Find what is in the binary            #
 ##################################################
 
-open(EXIMINFO, "$parm_exim -C $parm_cwd/confs/0000 -DDIR=$parm_cwd " .
-               "-bP exim_user exim_group|") ||
+# deal with TRUSTED_CONFIG_LIST restrictions
+unlink("$parm_cwd/test-config") if -e "$parm_cwd/test-config";
+open (IN, "$parm_cwd/confs/0000") ||
+  tests_exit(-1, "Couldn't open $parm_cwd/confs/0000: $!\n");
+open (OUT, ">test-config") ||
+  tests_exit(-1, "Couldn't open test-config: $!\n");
+while (<IN>) { print OUT; }
+close(IN);
+close(OUT);
+
+print("Probing with config file: $parm_cwd/test-config\n");
+open(EXIMINFO, "$parm_exim -d -C $parm_cwd/test-config -DDIR=$parm_cwd " .
+               "-bP exim_user exim_group 2>&1|") ||
   die "** Cannot run $parm_exim: $!\n";
 while(<EXIMINFO>)
   {
+  if (my ($version) = /^Exim version (\S+)/) {
+    my $git = `git describe --dirty=-XX --match 'exim-4*'`;
+    if (defined $git and $? == 0) {
+      chomp $git;
+      $version =~ s/^\d+\K\./_/;
+      $git =~ s/^exim-//i;
+      $git =~ s/.*-\Kg([[:xdigit:]]+(?:-XX)?)/$1/;
+      print <<___
+
+*** Version mismatch
+*** Exim binary: $version
+*** Git        : $git
+
+___
+        if not $version eq $git;
+    }
+  }
   $parm_eximuser = $1 if /^exim_user = (.*)$/;
   $parm_eximgroup = $1 if /^exim_group = (.*)$/;
+  $parm_trusted_config_list = $1 if /^TRUSTED_CONFIG_LIST:.*?"(.*?)"$/;
+  ($parm_configure_owner, $parm_configure_group) = ($1, $2)
+	if /^Configure owner:\s*(\d+):(\d+)/;
+  print if /wrong owner/;
   }
 close(EXIMINFO);
 
@@ -2018,6 +2613,14 @@ if (defined $parm_eximuser)
   if ($parm_eximuser =~ /^\d+$/) { $parm_exim_uid = $parm_eximuser; }
     else { $parm_exim_uid = getpwnam($parm_eximuser); }
   }
+else
+  {
+  print "Unable to extract exim_user from binary.\n";
+  print "Check if Exim refused to run; if so, consider:\n";
+  print "  TRUSTED_CONFIG_LIST ALT_CONFIG_PREFIX WHITELIST_D_MACROS\n";
+  print "If debug permission denied, are you in the exim group?\n";
+  die "Failing to get information from binary.\n";
+  }
 
 if (defined $parm_eximgroup)
   {
@@ -2025,7 +2628,43 @@ if (defined $parm_eximgroup)
     else { $parm_exim_gid = getgrnam($parm_eximgroup); }
   }
 
-open(EXIMINFO, "$parm_exim -bV -C $parm_cwd/confs/0000 -DDIR=$parm_cwd |") ||
+# check the permissions on the TRUSTED_CONFIG_LIST
+if (defined $parm_trusted_config_list)
+  {
+  die "TRUSTED_CONFIG_LIST: $parm_trusted_config_list: $!\n"
+    if not -f $parm_trusted_config_list;
+
+  die "TRUSTED_CONFIG_LIST $parm_trusted_config_list must not be world writable!\n"
+    if 02 & (stat _)[2];
+
+  die sprintf "TRUSTED_CONFIG_LIST: $parm_trusted_config_list %d is group writable, but not owned by group '%s' or '%s'.\n",
+  (stat _)[1],
+    scalar(getgrgid 0), scalar(getgrgid $>)
+    if (020 & (stat _)[2]) and not ((stat _)[5] == $> or (stat _)[5] == 0);
+
+  die sprintf "TRUSTED_CONFIG_LIST: $parm_trusted_config_list is not owned by user '%s' or '%s'.\n",
+  scalar(getpwuid 0), scalar(getpwuid $>)
+     if (not (-o _ or (stat _)[4] == 0));
+
+  open(TCL, $parm_trusted_config_list) or die "Can't open $parm_trusted_config_list: $!\n";
+  my $test_config = getcwd() . '/test-config';
+  die "Can't find '$test_config' in TRUSTED_CONFIG_LIST $parm_trusted_config_list."
+  if not grep { /^$test_config$/ } <TCL>;
+  }
+else
+  {
+  die "Unable to check the TRUSTED_CONFIG_LIST, seems to be empty?\n";
+  }
+
+die "CONFIGURE_OWNER ($parm_configure_owner) does not match the user invoking $0 ($>)\n"
+	if $parm_configure_owner != $>;
+
+die "CONFIGURE_GROUP ($parm_configure_group) does not match the group invoking $0 ($))\n"
+	if 0020 & (stat "$parm_cwd/test-config")[2]
+	and $parm_configure_group != $);
+
+
+open(EXIMINFO, "$parm_exim -d-all+transport -bV -C $parm_cwd/test-config -DDIR=$parm_cwd |") ||
   die "** Cannot run $parm_exim: $!\n";
 
 print "-" x 78, "\n";
@@ -2034,7 +2673,7 @@ while (<EXIMINFO>)
   {
   my(@temp);
 
-  if (/^Exim version/) { print; }
+  if (/^(Exim|Library) version/) { print; }
 
   elsif (/^Size of off_t: (\d+)/)
     {
@@ -2092,7 +2731,7 @@ while (<EXIMINFO>)
       if ($k =~ "/")
         {
         @temp = split /\//, $k;
-        $parm_transports{"$temp[0]"} = " ";
+        $parm_transports{$temp[0]} = " ";
         for ($i = 1; $i < @temp; $i++)
           { $parm_transports{"$temp[0]/$temp[$i]"} = " "; }
         }
@@ -2102,6 +2741,7 @@ while (<EXIMINFO>)
 close(EXIMINFO);
 print "-" x 78, "\n";
 
+unlink("$parm_cwd/test-config");
 
 ##################################################
 #    Check for SpamAssassin and ClamAV           #
@@ -2110,8 +2750,10 @@ print "-" x 78, "\n";
 # These are crude tests. If they aren't good enough, we'll have to improve
 # them, for example by actually passing a message through spamc or clamscan.
 
-if (defined $parm_support{'Content_Scanning'})
+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";
@@ -2128,23 +2770,23 @@ 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/|
@@ -2159,7 +2801,7 @@ if (defined $parm_support{'Content_Scanning'})
       }
     else
       {
-      $parm_running{'SpamAssassin'} = ' ';
+      $parm_running{SpamAssassin} = ' ';
       print "  SpamAssassin (spamd) seems to be running\n";
       }
     }
@@ -2178,11 +2820,11 @@ if (defined $parm_support{'Content_Scanning'})
     print "The clamscan command works";
 
     $test_prefix = $ENV{EXIM_TEST_PREFIX};
-    $test_prefix = "" if !defined $test_prefix;
+    $test_prefix = '' if !defined $test_prefix;
 
     foreach $f ("$test_prefix/etc/clamd.conf",
                 "$test_prefix/usr/local/etc/clamd.conf",
-                "$test_prefix/etc/clamav/clamd.conf", "")
+                "$test_prefix/etc/clamav/clamd.conf", '')
       {
       if (-e $f)
         {
@@ -2193,7 +2835,7 @@ if (defined $parm_support{'Content_Scanning'})
 
     # Read the ClamAV configuration file and find the socket interface.
 
-    if ($clamconf ne "")
+    if ($clamconf ne '')
       {
       my $socket_domain;
       open(IN, "$clamconf") || die "\n** Unable to open $clamconf: $!\n";
@@ -2255,18 +2897,18 @@ 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";
@@ -2280,7 +2922,7 @@ if (defined $parm_support{'Content_Scanning'})
           }
         else
           {
-          $parm_running{'ClamAV'} = ' ';
+          $parm_running{ClamAV} = ' ';
           print "  ClamAV seems to be running\n";
           }
         }
@@ -2300,6 +2942,22 @@ if (defined $parm_support{'Content_Scanning'})
   }
 
 
+##################################################
+#       Check for redis                          #
+##################################################
+if (defined $parm_lookups{redis})
+  {
+  if (system("redis-server -v 2>/dev/null >/dev/null") == 0)
+    {
+    print "The redis-server command works\n";
+    $parm_running{redis} = ' ';
+    }
+  else
+    {
+    print "The redis-server command failed: assume Redis not installed\n";
+    }
+  }
+
 ##################################################
 #         Test for the basic requirements        #
 ##################################################
@@ -2307,21 +2965,21 @@ if (defined $parm_support{'Content_Scanning'})
 # This test suite assumes that Exim has been built with at least the "usual"
 # set of routers, transports, and lookups. Ensure that this is so.
 
-$missing = "";
+$missing = '';
 
-$missing .= "     Lookup: lsearch\n" if (!defined $parm_lookups{'lsearch'});
+$missing .= "     Lookup: lsearch\n" if (!defined $parm_lookups{lsearch});
 
-$missing .= "     Router: accept\n" if (!defined $parm_routers{'accept'});
-$missing .= "     Router: dnslookup\n" if (!defined $parm_routers{'dnslookup'});
-$missing .= "     Router: manualroute\n" if (!defined $parm_routers{'manualroute'});
-$missing .= "     Router: redirect\n" if (!defined $parm_routers{'redirect'});
+$missing .= "     Router: accept\n" if (!defined $parm_routers{accept});
+$missing .= "     Router: dnslookup\n" if (!defined $parm_routers{dnslookup});
+$missing .= "     Router: manualroute\n" if (!defined $parm_routers{manualroute});
+$missing .= "     Router: redirect\n" if (!defined $parm_routers{redirect});
 
-$missing .= "     Transport: appendfile\n" if (!defined $parm_transports{'appendfile'});
-$missing .= "     Transport: autoreply\n" if (!defined $parm_transports{'autoreply'});
-$missing .= "     Transport: pipe\n" if (!defined $parm_transports{'pipe'});
-$missing .= "     Transport: smtp\n" if (!defined $parm_transports{'smtp'});
+$missing .= "     Transport: appendfile\n" if (!defined $parm_transports{appendfile});
+$missing .= "     Transport: autoreply\n" if (!defined $parm_transports{autoreply});
+$missing .= "     Transport: pipe\n" if (!defined $parm_transports{pipe});
+$missing .= "     Transport: smtp\n" if (!defined $parm_transports{smtp});
 
-if ($missing ne "")
+if ($missing ne '')
   {
   print "\n";
   print "** Many features can be included or excluded from Exim binaries.\n";
@@ -2343,8 +3001,8 @@ if ($missing ne "")
 for $prog ("cf", "checkaccess", "client", "client-ssl", "client-gnutls",
            "fakens", "iefbr14", "server")
   {
-  next if ($prog eq "client-ssl" && !defined $parm_support{'OpenSSL'});
-  next if ($prog eq "client-gnutls" && !defined $parm_support{'GnuTLS'});
+  next if ($prog eq "client-ssl" && !defined $parm_support{OpenSSL});
+  next if ($prog eq "client-gnutls" && !defined $parm_support{GnuTLS});
   if (!-e "bin/$prog")
     {
     print "\n";
@@ -2358,9 +3016,9 @@ for $prog ("cf", "checkaccess", "client", "client-ssl", "client-gnutls",
 # have that functionality compiled, we needn't bother.
 
 $dlfunc_deleted = 0;
-if (defined $parm_support{'Expand_dlfunc'} && !-e "bin/loaded")
+if (defined $parm_support{Expand_dlfunc} && !-e 'bin/loaded')
   {
-  delete $parm_support{'Expand_dlfunc'};
+  delete $parm_support{Expand_dlfunc};
   $dlfunc_deleted = 1;
   }
 
@@ -2380,9 +3038,15 @@ $pwcomm = $pwcomm;
 
 $parm_caller_group = getgrgid($parm_caller_gid);
 
-print "Program caller is $parm_caller, whose group is $parm_caller_group\n";
+print "Program caller is $parm_caller ($parm_caller_uid), whose group is $parm_caller_group ($parm_caller_gid)\n";
 print "Home directory is $parm_caller_home\n";
 
+unless (defined $parm_eximgroup)
+  {
+  print "Unable to derive \$parm_eximgroup.\n";
+  die "** ABANDONING.\n";
+  }
+
 print "You need to be in the Exim group to run these tests. Checking ...";
 
 if (`groups` =~ /\b\Q$parm_eximgroup\E\b/)
@@ -2398,39 +3062,26 @@ else
 # Find this host's IP addresses - there may be many, of course, but we keep
 # one of each type (IPv4 and IPv6).
 
-$parm_ipv4 = "";
-$parm_ipv6 = "";
-
-$local_ipv4 = "";
-$local_ipv6 = "";
-
-open(IFCONFIG, "ifconfig -a|") || die "** Cannot run \"ifconfig\": $!\n";
-while (($parm_ipv4 eq "" || $parm_ipv6 eq "") && ($_ = <IFCONFIG>))
+open(IFCONFIG, '-|', (grep { -x "$_/ip" } split /:/, $ENV{PATH}) ? 'ip address' : 'ifconfig -a')
+  or die "** Cannot run 'ip address' or 'ifconfig -a'\n";
+while (not ($parm_ipv4 and $parm_ipv6) and defined($_ = <IFCONFIG>))
   {
-  my($ip);
-  if ($parm_ipv4 eq "" &&
-      $_ =~ /^\s*inet(?:\saddr)?:?\s?(\d+\.\d+\.\d+\.\d+)\s/i)
+  if (not $parm_ipv4 and /^\s*inet(?:\saddr)?:?\s?(\d+\.\d+\.\d+\.\d+)(?:\/\d+)?\s/i)
     {
-    $ip = $1;
-    next if ($ip eq "127.0.0.1");
-    $parm_ipv4 = $ip;
+    next if $1 =~ /^(?:127|10)\./;
+    $parm_ipv4 = $1;
     }
 
-  if ($parm_ipv6 eq "" &&
-      $_ =~ /^\s*inet6(?:\saddr)?:?\s?([abcdef\d:]+)/i)
+  if (not $parm_ipv6 and /^\s*inet6(?:\saddr)?:?\s?([abcdef\d:]+)(?:\/\d+)/i)
     {
-    $ip = $1;
-    next if ($ip eq "::1" || $ip =~ /^fe80/i);
-    $parm_ipv6 = $ip;
+    next if $1 eq '::1' or $1 =~ /^fe80/i;
+    $parm_ipv6 = $1;
     }
   }
 close(IFCONFIG);
 
 # Use private IP addresses if there are no public ones.
 
-$parm_ipv4 = $local_ipv4 if ($parm_ipv4 eq "");
-$parm_ipv6 = $local_ipv6 if ($parm_ipv6 eq "");
-
 # If either type of IP address is missing, we need to set the value to
 # something other than empty, because that wrecks the substitutions. The value
 # is reflected, so use a meaningful string. Set appropriate options for the
@@ -2439,7 +3090,7 @@ $parm_ipv6 = $local_ipv6 if ($parm_ipv6 eq "");
 # of IPV4 or IPv6 can be simulated by command options, which force $have_ipv4
 # and $have_ipv6 false.
 
-if ($parm_ipv4 eq "")
+if (not $parm_ipv4)
   {
   $have_ipv4 = 0;
   $parm_ipv4 = "<no IPv4 address found>";
@@ -2452,23 +3103,23 @@ elsif ($have_ipv4 == 0)
   }
 else
   {
-  $parm_running{"IPv4"} = " ";
+  $parm_running{IPv4} = " ";
   }
 
-if ($parm_ipv6 eq "")
+if (not $parm_ipv6)
   {
   $have_ipv6 = 0;
   $parm_ipv6 = "<no IPv6 address found>";
   $server_opts .= " -noipv6";
-  delete($parm_support{"IPv6"});
+  delete($parm_support{IPv6});
   }
 elsif ($have_ipv6 == 0)
   {
   $parm_ipv6 = "<IPv6 testing disabled>";
   $server_opts .= " -noipv6";
-  delete($parm_support{"IPv6"});
+  delete($parm_support{IPv6});
   }
-elsif (!defined $parm_support{'IPv6'})
+elsif (!defined $parm_support{IPv6})
   {
   $have_ipv6 = 0;
   $parm_ipv6 = "<no IPv6 support in Exim binary>";
@@ -2476,7 +3127,7 @@ elsif (!defined $parm_support{'IPv6'})
   }
 else
   {
-  $parm_running{"IPv6"} = " ";
+  $parm_running{IPv6} = " ";
   }
 
 print "IPv4 address is $parm_ipv4\n";
@@ -2484,7 +3135,7 @@ print "IPv6 address is $parm_ipv6\n";
 
 # For munging test output, we need the reversed IP addresses.
 
-$parm_ipv4r = ($parm_ipv4 !~ /^\d/)? "" :
+$parm_ipv4r = ($parm_ipv4 !~ /^\d/)? '' :
   join(".", reverse(split /\./, $parm_ipv4));
 
 $parm_ipv6r = $parm_ipv6;             # Appropriate if not in use
@@ -2503,8 +3154,16 @@ if ($parm_ipv6 =~ /^[\da-f]/)
 # Find the host name, fully qualified.
 
 chomp($temp = `hostname`);
-$parm_hostname = (gethostbyname($temp))[0];
-$parm_hostname = "no.host.name.found" if $parm_hostname eq "";
+die "'hostname' didn't return anything\n" unless defined $temp and length $temp;
+if ($temp =~ /\./)
+  {
+  $parm_hostname = $temp;
+  }
+else
+  {
+  $parm_hostname = (gethostbyname($temp))[0];
+  $parm_hostname = "no.host.name.found" unless defined $parm_hostname and length $parm_hostname;
+  }
 print "Hostname is $parm_hostname\n";
 
 if ($parm_hostname !~ /\./)
@@ -2512,9 +3171,11 @@ if ($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'};
 
 
 ##################################################
@@ -2557,8 +3218,8 @@ die "** Unable to make patched exim: $!\n"
 # tests_exit(), so that suitable cleaning up can be done when required.
 # Arrange to catch interrupting signals, to assist with this.
 
-$SIG{'INT'} = \&inthandler;
-$SIG{'PIPE'} = \&pipehandler;
+$SIG{INT} = \&inthandler;
+$SIG{PIPE} = \&pipehandler;
 
 # For some tests, we need another copy of the binary that is setuid exim rather
 # than root.
@@ -2576,13 +3237,13 @@ 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'} &&
+if (defined $parm_lookups{dbm} &&
     system("cp $parm_exim_dir/exim_dbmbuild eximdir") != 0)
   {
-  delete $parm_lookups{'dbm'};
+  delete $parm_lookups{dbm};
   $dbm_build_deleted = 1;
   }
 
@@ -2626,6 +3287,11 @@ if ($parm_caller_uid eq $parm_exim_uid) {
   tests_exit(-1, "Exim user ($parm_eximuser,$parm_exim_uid) cannot be "
                 ."the same as caller ($parm_caller,$parm_caller_uid)");
 }
+if ($parm_caller_gid eq $parm_exim_gid) {
+  tests_exit(-1, "Exim group ($parm_eximgroup,$parm_exim_gid) cannot be "
+                ."the same as caller's ($parm_caller) group as it confuses "
+                ."results analysis");
+}
 
 print "The Exim user needs access to the test suite directory. Checking ...";
 
@@ -2661,7 +3327,7 @@ else
 # because the current binary does not support the right facilities, and also
 # those that are outside the numerical range selected.
 
-print "\nTest range is $test_start to $test_end\n";
+print "\nTest range is $test_start to $test_end (flavour $flavour)\n";
 print "Omitting \${dlfunc expansion tests (loadable module not present)\n"
   if $dlfunc_deleted;
 print "Omitting dbm tests (unable to copy exim_dbmbuild)\n"
@@ -2767,7 +3433,7 @@ for ($i = 0; $i < @test_dirs; $i++)
 
   foreach $test (@testlist)
     {
-    next if $test !~ /^\d{4}$/;
+    next if $test !~ /^\d{4}(?:\.\d+)?$/;
     next if $test < $test_start || $test > $test_end;
     push @test_list, "$testdir/$test";
     }
@@ -2835,6 +3501,10 @@ 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        #
@@ -2874,9 +3544,20 @@ 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) =  "";
+  my($sep) =  '';
 
   $" = ".";
   open(OUT, ">$parm_cwd/dnszones/db.ip6.@nibbles") ||
@@ -2925,32 +3606,39 @@ closedir(DIR);
 # contains ****. We open input from the terminal so that we can read responses
 # to prompts.
 
-open(T, "/dev/tty") || tests_exit(-1, "Failed to open /dev/tty: $!");
+if (not $force_continue) {
+  # runtest needs to interact if we're not in continue
+  # mode. It does so by communicate to /dev/tty
+  open(T, "/dev/tty") or tests_exit(-1, "Failed to open /dev/tty: $!");
+}
+
 
 print "\nPress RETURN to run the tests: ";
-$_ = <T>;
+$_ = $force_continue ? "c" : <T>;
 print "\n";
 
-$lasttestdir = "";
+$lasttestdir = '';
 
 foreach $test (@test_list)
   {
   local($lineno) = 0;
   local($commandno) = 0;
   local($subtestno) = 0;
-  local($testno) = substr($test, -4);
+  (local $testno = $test) =~ s|.*/||;
   local($sortlog) = 0;
 
   my($gnutls) = 0;
   my($docheck) = 1;
   my($thistestdir) = substr($test, 0, -5);
 
+  $dynamic_socket->close() if $dynamic_socket;
+
   if ($lasttestdir ne $thistestdir)
     {
     $gnutls = 0;
     if (-s "scripts/$thistestdir/REQUIRES")
       {
-      my($indent) = "";
+      my($indent) = '';
       print "\n>>> The following tests require: ";
       open(IN, "scripts/$thistestdir/REQUIRES") ||
         tests_exit(-1, "Failed to open scripts/$thistestdir/REQUIRES: $1");
@@ -2994,6 +3682,7 @@ foreach $test (@test_list)
   $stdout_skip = 0;
   $rmfiltertest = 0;
   $is_ipv6test = 0;
+  $TEST_STATE->{munge} = '';
 
   # Remove the associative arrays used to hold checked mail files and msglogs
 
@@ -3001,9 +3690,21 @@ foreach $test (@test_list)
   undef %expected_msglogs;
 
   # Open the test's script
-
   open(SCRIPT, "scripts/$test") ||
     tests_exit(-1, "Failed to open \"scripts/$test\": $!");
+  # Run through the script once to set variables which should be global
+  while (<SCRIPT>)
+    {
+    if (/^no_message_check/) { $message_skip = 1; next; }
+    if (/^no_msglog_check/)  { $msglog_skip = 1; next; }
+    if (/^no_stderr_check/)  { $stderr_skip = 1; next; }
+    if (/^no_stdout_check/)  { $stdout_skip = 1; next; }
+    if (/^rmfiltertest/)     { $rmfiltertest = 1; next; }
+    if (/^sortlog/)          { $sortlog = 1; next; }
+    if (/\bPORT_DYNAMIC\b/)  { $dynamic_socket = Exim::Runtest::dynamic_socket(); next; }
+    }
+  # Reset to beginning of file for per test interpreting/processing
+  seek(SCRIPT, 0, 0);
 
   # The first line in the script must be a comment that is used to identify
   # the set of tests as a whole.
@@ -3026,6 +3727,8 @@ foreach $test (@test_list)
     while (<SCRIPT>)
       {
       $lineno++;
+      # Could remove these variable settings because they are already
+      # set above, but doesn't hurt to leave them here.
       if (/^no_message_check/) { $message_skip = 1; next; }
       if (/^no_msglog_check/)  { $msglog_skip = 1; next; }
       if (/^no_stderr_check/)  { $stderr_skip = 1; next; }
@@ -3066,7 +3769,7 @@ foreach $test (@test_list)
 
       if (/^need_move_frozen_messages/)
         {
-        next if defined $parm_support{"move_frozen_messages"};
+        next if defined $parm_support{move_frozen_messages};
         print ">>> move frozen message support is needed for test $testno, " .
           "but is not\n>>> available: skipping\n";
         $docheck = 0;      # don't check output
@@ -3074,22 +3777,45 @@ foreach $test (@test_list)
         last;
         }
 
-      last unless /^(#|\s*$)/;
+      last unless /^(?:#(?!##\s)|\s*$)/;
       }
     last if !defined $_;  # Hit EOF
 
     my($subtest_startline) = $lineno;
 
-    # Now run the command. The function returns 0 if exim was run and waited
-    # for, 1 if any other command was run and waited for, and 2 if a command
+    # Now run the command. The function returns 0 for an inline command,
+    # 1 if a non-exim command was run and waited for, 2 if an exim
+    # command was run and waited for, and 3 if a command
     # was run and not waited for (usually a daemon or server startup).
 
-    my($commandname) = "";
+    my($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;
+    $0 = "[runtest $testno]";
+
+    if ($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
 
@@ -3118,10 +3844,20 @@ foreach $test (@test_list)
 
       for (;;)
         {
-        print "\nshow stdErr, show stdOut, Continue (without file comparison), or Quit? [Q] ";
-        $_ = <T>;
+        print "\nshow stdErr, show stdOut, Retry, Continue (without file comparison), or Quit? [Q] ";
+        $_ = $force_continue ? "c" : <T>;
         tests_exit(1) if /^q?$/i;
-        last if /^c$/i;
+        log_failure($log_failed_filename, $testno, "exit code unexpected") if (/^c$/i && $force_continue);
+        if ($force_continue)
+          {
+          print "\nstderr tail:\n";
+          print "===================\n";
+          system("tail -20 test-stderr");
+          print "===================\n";
+          print "... continue forced\n";
+          }
+
+        last if /^[rc]$/i;
         if (/^e$/i)
           {
           system("$more test-stderr");
@@ -3132,6 +3868,7 @@ foreach $test (@test_list)
           }
         }
 
+      $retry = 1 if /^r$/i;
       $docheck = 0;
       }
 
@@ -3154,10 +3891,12 @@ foreach $test (@test_list)
 
         for (;;)
           {
-          print "\nShow server stdout, Continue, or Quit? [Q] ";
-          $_ = <T>;
+          print "\nShow server stdout, Retry, Continue, or Quit? [Q] ";
+          $_ = $force_continue ? "c" : <T>;
           tests_exit(1) if /^q?$/i;
-          last if /^c$/i;
+          log_failure($log_failed_filename, $testno, "exit code unexpected") if (/^c$/i && $force_continue);
+          print "... continue forced\n" if $force_continue;
+          last if /^[rc]$/i;
 
           if (/^s$/i)
             {
@@ -3167,6 +3906,7 @@ foreach $test (@test_list)
             close(S);
             }
           }
+        $retry = 1 if /^r$/i;
         }
       }
     }
@@ -3175,11 +3915,19 @@ foreach $test (@test_list)
 
   # The script has finished. Check the all the output that was generated. The
   # function returns 0 if all is well, 1 if we should rerun the test (the files
+  # 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;
@@ -3200,4 +3948,3 @@ tests_exit(-1, "No runnable tests selected") if @test_list == 0;
 tests_exit(0);
 
 # End of runtest script
-