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authorjmmv <jmmv@FreeBSD.org>2014-04-27 01:15:10 +0000
committerjmmv <jmmv@FreeBSD.org>2014-04-27 01:15:10 +0000
commit1e4589b921fdaa1b1d2fc6b6ed016f1e0a01cb8f (patch)
tree94c86cf13dedabad5bdc68f6f227b843a5161343 /sbin/mdconfig
parent5b12da65bf9d40526ac9ca480d639bad3cd39cf6 (diff)
downloadFreeBSD-src-1e4589b921fdaa1b1d2fc6b6ed016f1e0a01cb8f.zip
FreeBSD-src-1e4589b921fdaa1b1d2fc6b6ed016f1e0a01cb8f.tar.gz
MFC various moves of tools/regressions/ tests to the new infrastructure.
- r263220 Migrate tools/regression/sbin/ to the new tests layout. - r263222 Add Makefile missed in r263220. - r263226 Migrate tools/regression/{usr.bin/lastcomm,usr.sbin}/ to the new tests layout. - r263227 Migrate most of tools/regression/usr.bin/ to the new tests layout. - r263345 Expand tabs that sneaked in into spaces. - r263346 Migrate tools/regression/usr.bin/make/ to the new tests layout. - r263348 Add Makefiles missed in r263346. - r263351 Migrate tools/regression/usr.bin/pkill/ to the new tests layout. - r263388 Mark multi_test as requiring /usr/share/dict/words. - r263814 Fix path to the run.pl script to let these tests run. - r264742 Prevent building tests when bootstrapping make. This is 'make tinderbox' clean.
Diffstat (limited to 'sbin/mdconfig')
-rw-r--r--sbin/mdconfig/Makefile6
-rw-r--r--sbin/mdconfig/tests/Makefile13
-rw-r--r--sbin/mdconfig/tests/legacy_test.sh47
-rw-r--r--sbin/mdconfig/tests/mdconfig.test231
-rw-r--r--sbin/mdconfig/tests/run.pl329
5 files changed, 626 insertions, 0 deletions
diff --git a/sbin/mdconfig/Makefile b/sbin/mdconfig/Makefile
index be8b1b5..4b9b940 100644
--- a/sbin/mdconfig/Makefile
+++ b/sbin/mdconfig/Makefile
@@ -1,9 +1,15 @@
# $FreeBSD$
+.include <bsd.own.mk>
+
PROG= mdconfig
MAN= mdconfig.8
DPADD= ${LIBUTIL} ${LIBGEOM} ${LIBBSDXML} ${LIBSBUF}
LDADD= -lutil -lgeom -lbsdxml -lsbuf
+.if ${MK_TESTS} != "no"
+SUBDIR+= tests
+.endif
+
.include <bsd.prog.mk>
diff --git a/sbin/mdconfig/tests/Makefile b/sbin/mdconfig/tests/Makefile
new file mode 100644
index 0000000..17284bb
--- /dev/null
+++ b/sbin/mdconfig/tests/Makefile
@@ -0,0 +1,13 @@
+# $FreeBSD$
+
+TESTSDIR= ${TESTSBASE}/sbin/mdconfig
+
+TAP_TESTS_SH= legacy_test
+TAP_TESTS_SH_SED_legacy_test= 's,__PERL__,${TAP_PERL_INTERPRETER},g'
+TEST_METADATA.legacy_test+= required_programs="${TAP_PERL_INTERPRETER}"
+
+FILESDIR= ${TESTSDIR}
+FILES= mdconfig.test
+FILES+= run.pl
+
+.include <bsd.test.mk>
diff --git a/sbin/mdconfig/tests/legacy_test.sh b/sbin/mdconfig/tests/legacy_test.sh
new file mode 100644
index 0000000..728224d
--- /dev/null
+++ b/sbin/mdconfig/tests/legacy_test.sh
@@ -0,0 +1,47 @@
+#!/bin/sh
+#
+# Copyright (c) 2012 Edward Tomasz Napierała <trasz@FreeBSD.org>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+#
+
+# This is a wrapper script to run mdconfig.test.
+
+echo "1..1"
+
+if [ `whoami` != "root" ]; then
+ echo "ok 1 # skip You need to be root to run this test."
+ exit 0
+fi
+
+TESTDIR=$(dirname $(realpath $0))
+
+__PERL__ -w -U $TESTDIR/run.pl $TESTDIR/mdconfig.test > /dev/null
+
+if [ $? -eq 0 ]; then
+ echo "ok 1"
+else
+ echo "not ok 1"
+fi
diff --git a/sbin/mdconfig/tests/mdconfig.test b/sbin/mdconfig/tests/mdconfig.test
new file mode 100644
index 0000000..65d3670
--- /dev/null
+++ b/sbin/mdconfig/tests/mdconfig.test
@@ -0,0 +1,231 @@
+# Copyright (c) 2012 Edward Tomasz Napierała <trasz@FreeBSD.org>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+#
+
+# This is a test for mdconfig(8) functionality. Run it as root:
+#
+# /usr/src/tools/regression/mdconfig/run /usr/src/tools/regression/mdconfig/mdconfig.test
+#
+# WARNING: Creates files in unsafe way.
+
+$ whoami
+> root
+$ umask 022
+$ truncate -s 1gb xxx
+
+$ mdconfig -l
+
+$ mdconfig -af xxx
+> md0
+
+# This awk thing is to strip the file path.
+$ mdconfig -lv | awk '{ print $1, $2, $3 }'
+> md0 vnode 1024M
+
+$ diskinfo -v /dev/md0 | expand
+> /dev/md0
+> 512 # sectorsize
+> 1073741824 # mediasize in bytes (1.0G)
+> 2097152 # mediasize in sectors
+> 0 # stripesize
+> 0 # stripeoffset
+>
+
+$ mdconfig -du 0
+
+# Check different valid syntax variations: implicit -a.
+
+$ mdconfig xxx
+> md0
+
+$ mdconfig -lv | awk '{ print $1, $2, $3 }'
+> md0 vnode 1024M
+
+$ diskinfo -v /dev/md0 | expand
+> /dev/md0
+> 512 # sectorsize
+> 1073741824 # mediasize in bytes (1.0G)
+> 2097152 # mediasize in sectors
+> 0 # stripesize
+> 0 # stripeoffset
+>
+
+$ mdconfig -du 0
+
+# Explicit -t vnode.
+
+$ mdconfig -a -t vnode -f xxx
+> md0
+
+$ mdconfig -lv | awk '{ print $1, $2, $3 }'
+> md0 vnode 1024M
+
+$ diskinfo -v /dev/md0 | expand
+> /dev/md0
+> 512 # sectorsize
+> 1073741824 # mediasize in bytes (1.0G)
+> 2097152 # mediasize in sectors
+> 0 # stripesize
+> 0 # stripeoffset
+>
+
+$ mdconfig -du 0
+
+# Size for vnodes - smaller than the actual file.
+
+$ mdconfig -a -t vnode -f xxx -s 128m
+> md0
+
+$ mdconfig -lv | awk '{ print $1, $2, $3 }'
+> md0 vnode 128M
+
+$ diskinfo -v /dev/md0 | expand
+> /dev/md0
+> 512 # sectorsize
+> 134217728 # mediasize in bytes (128M)
+> 262144 # mediasize in sectors
+> 0 # stripesize
+> 0 # stripeoffset
+>
+
+$ mdconfig -du 0
+
+# Size for vnodes - larger than the actual file.
+
+$ mdconfig -a -t vnode -f xxx -s 128g
+> md0
+
+$ mdconfig -lv | awk '{ print $1, $2, $3 }'
+> md0 vnode 128G
+
+$ diskinfo -v /dev/md0 | expand
+> /dev/md0
+> 512 # sectorsize
+> 137438953472 # mediasize in bytes (128G)
+> 268435456 # mediasize in sectors
+> 0 # stripesize
+> 0 # stripeoffset
+>
+
+$ mdconfig -du 0
+
+# Sector size for vnodes.
+
+$ mdconfig -a -t vnode -f xxx -S 2048
+> md0
+
+$ mdconfig -lv | awk '{ print $1, $2, $3 }'
+> md0 vnode 1024M
+
+$ diskinfo -v /dev/md0 | expand
+> /dev/md0
+> 2048 # sectorsize
+> 1073741824 # mediasize in bytes (1.0G)
+> 524288 # mediasize in sectors
+> 0 # stripesize
+> 0 # stripeoffset
+>
+
+$ mdconfig -du 0
+
+# Malloc type.
+
+$ mdconfig -a -t malloc -s 1g
+> md0
+
+$ mdconfig -lv | awk '{ print $1, $2, $3 }'
+> md0 malloc 1024M
+
+$ diskinfo -v /dev/md0 | expand
+> /dev/md0
+> 512 # sectorsize
+> 1073741824 # mediasize in bytes (1.0G)
+> 2097152 # mediasize in sectors
+> 0 # stripesize
+> 0 # stripeoffset
+>
+
+$ mdconfig -du 0
+
+# Swap type.
+
+$ mdconfig -a -t swap -s 1g
+> md0
+
+$ mdconfig -lv | awk '{ print $1, $2, $3 }'
+> md0 swap 1024M
+
+$ diskinfo -v /dev/md0 | expand
+> /dev/md0
+> 512 # sectorsize
+> 1073741824 # mediasize in bytes (1.0G)
+> 2097152 # mediasize in sectors
+> 0 # stripesize
+> 0 # stripeoffset
+>
+
+$ mdconfig -du 0
+
+# Attaching with a specific unit number.
+
+$ mdconfig -as 1g -u 42
+
+$ mdconfig -lv | awk '{ print $1, $2, $3 }'
+> md42 swap 1024M
+
+$ diskinfo -v /dev/md42 | expand
+> /dev/md42
+> 512 # sectorsize
+> 1073741824 # mediasize in bytes (1.0G)
+> 2097152 # mediasize in sectors
+> 0 # stripesize
+> 0 # stripeoffset
+>
+
+$ mdconfig -du 42
+
+# Querying.
+
+$ mdconfig -as 1g
+> md0
+$ mdconfig -as 2g -u 42
+
+$ mdconfig -lv | awk '{ print $1, $2, $3 }'
+> md0 swap 1024M
+> md42 swap 2048M
+
+$ mdconfig -lvu 0 | awk '{ print $1, $2, $3 }'
+> md0 swap 1024M
+
+$ mdconfig -lvu 42 | awk '{ print $1, $2, $3 }'
+> md42 swap 2048M
+
+$ mdconfig -lvu 24 | awk '{ print $1, $2, $3 }'
+
+$ mdconfig -du 42
+$ mdconfig -du 0
+
+$ rm xxx
diff --git a/sbin/mdconfig/tests/run.pl b/sbin/mdconfig/tests/run.pl
new file mode 100644
index 0000000..383f47e
--- /dev/null
+++ b/sbin/mdconfig/tests/run.pl
@@ -0,0 +1,329 @@
+#!/usr/bin/perl -w -U
+
+# Copyright (c) 2007, 2008 Andreas Gruenbacher.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions, and the following disclaimer,
+# without modification, immediately at the beginning of the file.
+# 2. The name of the author may not be used to endorse or promote products
+# derived from this software without specific prior written permission.
+#
+# Alternatively, this software may be distributed under the terms of the
+# GNU Public License ("GPL").
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+#
+
+#
+# Possible improvements:
+#
+# - distinguish stdout and stderr output
+# - add environment variable like assignments
+# - run up to a specific line
+# - resume at a specific line
+#
+
+use strict;
+use FileHandle;
+use Getopt::Std;
+use POSIX qw(isatty setuid getcwd);
+use vars qw($opt_l $opt_v);
+
+no warnings qw(taint);
+
+$opt_l = ~0; # a really huge number
+getopts('l:v');
+
+my ($OK, $FAILED) = ("ok", "failed");
+if (isatty(fileno(STDOUT))) {
+ $OK = "\033[32m" . $OK . "\033[m";
+ $FAILED = "\033[31m\033[1m" . $FAILED . "\033[m";
+}
+
+sub exec_test($$);
+sub process_test($$$$);
+
+my ($prog, $in, $out) = ([], [], []);
+my $prog_line = 0;
+my ($tests, $failed) = (0,0);
+my $lineno;
+my $width = ($ENV{COLUMNS} || 80) >> 1;
+
+for (;;) {
+ my $line = <>; $lineno++;
+ if (defined $line) {
+ # Substitute %VAR and %{VAR} with environment variables.
+ $line =~ s[%(\w+)][$ENV{$1}]eg;
+ $line =~ s[%{(\w+)}][$ENV{$1}]eg;
+ }
+ if (defined $line) {
+ if ($line =~ s/^\s*< ?//) {
+ push @$in, $line;
+ } elsif ($line =~ s/^\s*> ?//) {
+ push @$out, $line;
+ } else {
+ process_test($prog, $prog_line, $in, $out);
+ last if $prog_line >= $opt_l;
+
+ $prog = [];
+ $prog_line = 0;
+ }
+ if ($line =~ s/^\s*\$ ?//) {
+ $prog = [ map { s/\\(.)/$1/g; $_ } split /(?<!\\)\s+/, $line ];
+ $prog_line = $lineno;
+ $in = [];
+ $out = [];
+ }
+ } else {
+ process_test($prog, $prog_line, $in, $out);
+ last;
+ }
+}
+
+my $status = sprintf("%d commands (%d passed, %d failed)",
+ $tests, $tests-$failed, $failed);
+if (isatty(fileno(STDOUT))) {
+ if ($failed) {
+ $status = "\033[31m\033[1m" . $status . "\033[m";
+ } else {
+ $status = "\033[32m" . $status . "\033[m";
+ }
+}
+print $status, "\n";
+exit $failed ? 1 : 0;
+
+
+sub process_test($$$$) {
+ my ($prog, $prog_line, $in, $out) = @_;
+
+ return unless @$prog;
+
+ my $p = [ @$prog ];
+ print "[$prog_line] \$ ", join(' ',
+ map { s/\s/\\$&/g; $_ } @$p), " -- ";
+ my $result = exec_test($prog, $in);
+ my @good = ();
+ my $nmax = (@$out > @$result) ? @$out : @$result;
+ for (my $n=0; $n < $nmax; $n++) {
+ my $use_re;
+ if (defined $out->[$n] && $out->[$n] =~ /^~ /) {
+ $use_re = 1;
+ $out->[$n] =~ s/^~ //g;
+ }
+
+ if (!defined($out->[$n]) || !defined($result->[$n]) ||
+ (!$use_re && $result->[$n] ne $out->[$n]) ||
+ ( $use_re && $result->[$n] !~ /^$out->[$n]/)) {
+ push @good, ($use_re ? '!~' : '!=');
+ }
+ else {
+ push @good, ($use_re ? '=~' : '==');
+ }
+ }
+ my $good = !(grep /!/, @good);
+ $tests++;
+ $failed++ unless $good;
+ print $good ? $OK : $FAILED, "\n";
+ if (!$good || $opt_v) {
+ for (my $n=0; $n < $nmax; $n++) {
+ my $l = defined($out->[$n]) ? $out->[$n] : "~";
+ chomp $l;
+ my $r = defined($result->[$n]) ? $result->[$n] : "~";
+ chomp $r;
+ print sprintf("%-" . ($width-3) . "s %s %s\n",
+ $r, $good[$n], $l);
+ }
+ }
+}
+
+
+sub su($) {
+ my ($user) = @_;
+
+ $user ||= "root";
+
+ my ($login, $pass, $uid, $gid) = getpwnam($user)
+ or return [ "su: user $user does not exist\n" ];
+ my @groups = ();
+ my $fh = new FileHandle("/etc/group")
+ or return [ "opening /etc/group: $!\n" ];
+ while (<$fh>) {
+ chomp;
+ my ($group, $passwd, $gid, $users) = split /:/;
+ foreach my $u (split /,/, $users) {
+ push @groups, $gid
+ if ($user eq $u);
+ }
+ }
+ $fh->close;
+
+ my $groups = join(" ", ($gid, $gid, @groups));
+ #print STDERR "[[$groups]]\n";
+ $! = 0; # reset errno
+ $> = 0;
+ $( = $gid;
+ $) = $groups;
+ if ($!) {
+ return [ "su: $!\n" ];
+ }
+ if ($uid != 0) {
+ $> = $uid;
+ #$< = $uid;
+ if ($!) {
+ return [ "su: $prog->[1]: $!\n" ];
+ }
+ }
+ #print STDERR "[($>,$<)($(,$))]";
+ return [];
+}
+
+
+sub sg($) {
+ my ($group) = @_;
+
+ my $gid = getgrnam($group)
+ or return [ "sg: group $group does not exist\n" ];
+ my %groups = map { $_ eq $gid ? () : ($_ => 1) } (split /\s/, $));
+
+ #print STDERR "<<", join("/", keys %groups), ">>\n";
+ my $groups = join(" ", ($gid, $gid, keys %groups));
+ #print STDERR "[[$groups]]\n";
+ $! = 0; # reset errno
+ if ($> != 0) {
+ my $uid = $>;
+ $> = 0;
+ $( = $gid;
+ $) = $groups;
+ $> = $uid;
+ } else {
+ $( = $gid;
+ $) = $groups;
+ }
+ if ($!) {
+ return [ "sg: $!\n" ];
+ }
+ print STDERR "[($>,$<)($(,$))]";
+ return [];
+}
+
+
+sub exec_test($$) {
+ my ($prog, $in) = @_;
+ local (*IN, *IN_DUP, *IN2, *OUT_DUP, *OUT, *OUT2);
+ my $needs_shell = (join('', @$prog) =~ /[][|<>"'`\$\*\?]/);
+
+ if ($prog->[0] eq "umask") {
+ umask oct $prog->[1];
+ return [];
+ } elsif ($prog->[0] eq "cd") {
+ if (!chdir $prog->[1]) {
+ return [ "chdir: $prog->[1]: $!\n" ];
+ }
+ $ENV{PWD} = getcwd;
+ return [];
+ } elsif ($prog->[0] eq "su") {
+ return su($prog->[1]);
+ } elsif ($prog->[0] eq "sg") {
+ return sg($prog->[1]);
+ } elsif ($prog->[0] eq "export") {
+ my ($name, $value) = split /=/, $prog->[1];
+ # FIXME: need to evaluate $value, so that things like this will work:
+ # export dir=$PWD/dir
+ $ENV{$name} = $value;
+ return [];
+ } elsif ($prog->[0] eq "unset") {
+ delete $ENV{$prog->[1]};
+ return [];
+ }
+
+ pipe *IN2, *OUT
+ or die "Can't create pipe for reading: $!";
+ open *IN_DUP, "<&STDIN"
+ or *IN_DUP = undef;
+ open *STDIN, "<&IN2"
+ or die "Can't duplicate pipe for reading: $!";
+ close *IN2;
+
+ open *OUT_DUP, ">&STDOUT"
+ or die "Can't duplicate STDOUT: $!";
+ pipe *IN, *OUT2
+ or die "Can't create pipe for writing: $!";
+ open *STDOUT, ">&OUT2"
+ or die "Can't duplicate pipe for writing: $!";
+ close *OUT2;
+
+ *STDOUT->autoflush();
+ *OUT->autoflush();
+
+ $SIG{CHLD} = 'IGNORE';
+
+ if (fork()) {
+ # Server
+ if (*IN_DUP) {
+ open *STDIN, "<&IN_DUP"
+ or die "Can't duplicate STDIN: $!";
+ close *IN_DUP
+ or die "Can't close STDIN duplicate: $!";
+ }
+ open *STDOUT, ">&OUT_DUP"
+ or die "Can't duplicate STDOUT: $!";
+ close *OUT_DUP
+ or die "Can't close STDOUT duplicate: $!";
+
+ foreach my $line (@$in) {
+ #print "> $line";
+ print OUT $line;
+ }
+ close *OUT
+ or die "Can't close pipe for writing: $!";
+
+ my $result = [];
+ while (<IN>) {
+ #print "< $_";
+ if ($needs_shell) {
+ s#^/bin/sh: line \d+: ##;
+ }
+ push @$result, $_;
+ }
+ return $result;
+ } else {
+ # Client
+ $< = $>;
+ close IN
+ or die "Can't close read end for input pipe: $!";
+ close OUT
+ or die "Can't close write end for output pipe: $!";
+ close OUT_DUP
+ or die "Can't close STDOUT duplicate: $!";
+ local *ERR_DUP;
+ open ERR_DUP, ">&STDERR"
+ or die "Can't duplicate STDERR: $!";
+ open STDERR, ">&STDOUT"
+ or die "Can't join STDOUT and STDERR: $!";
+
+ if ($needs_shell) {
+ exec ('/bin/sh', '-c', join(" ", @$prog));
+ } else {
+ exec @$prog;
+ }
+ print STDERR $prog->[0], ": $!\n";
+ exit;
+ }
+}
+
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