136 lines
2.9 KiB
Perl
Executable File
136 lines
2.9 KiB
Perl
Executable File
#!./perl
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# $RCSfile: pipe.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:31 $
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BEGIN {
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chdir 't' if -d 't';
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@INC = '../lib';
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require Config; import Config;
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unless ($Config{'d_fork'}) {
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print "1..0\n";
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exit 0;
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}
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}
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$| = 1;
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print "1..12\n";
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open(PIPE, "|-") || (exec 'tr', 'YX', 'ko');
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print PIPE "Xk 1\n";
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print PIPE "oY 2\n";
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close PIPE;
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if (open(PIPE, "-|")) {
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while(<PIPE>) {
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s/^not //;
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print;
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}
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close PIPE; # avoid zombies which disrupt test 12
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}
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else {
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print STDOUT "not ok 3\n";
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exec 'echo', 'not ok 4';
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}
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pipe(READER,WRITER) || die "Can't open pipe";
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if ($pid = fork) {
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close WRITER;
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while(<READER>) {
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s/^not //;
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y/A-Z/a-z/;
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print;
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}
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close READER; # avoid zombies which disrupt test 12
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}
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else {
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die "Couldn't fork" unless defined $pid;
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close READER;
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print WRITER "not ok 5\n";
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open(STDOUT,">&WRITER") || die "Can't dup WRITER to STDOUT";
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close WRITER;
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exec 'echo', 'not ok 6';
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}
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pipe(READER,WRITER) || die "Can't open pipe";
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close READER;
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$SIG{'PIPE'} = 'broken_pipe';
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sub broken_pipe {
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$SIG{'PIPE'} = 'IGNORE'; # loop preventer
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print "ok 7\n";
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}
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print WRITER "not ok 7\n";
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close WRITER;
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sleep 1;
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print "ok 8\n";
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# VMS doesn't like spawning subprocesses that are still connected to
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# STDOUT. Someone should modify tests #9 to #12 to work with VMS.
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if ($^O eq 'VMS') {
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print "ok 9\n";
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print "ok 10\n";
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print "ok 11\n";
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print "ok 12\n";
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exit;
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}
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if ($Config{d_sfio} || $^O eq machten || $^O eq beos) {
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# Sfio doesn't report failure when closing a broken pipe
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# that has pending output. Go figure. MachTen doesn't either,
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# but won't write to broken pipes, so nothing's pending at close.
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# BeOS will not write to broken pipes, either.
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print "ok 9\n";
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}
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else {
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local $SIG{PIPE} = 'IGNORE';
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open NIL, '|true' or die "open failed: $!";
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sleep 2;
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print NIL 'foo' or die "print failed: $!";
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if (close NIL) {
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print "not ok 9\n";
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}
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else {
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print "ok 9\n";
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}
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}
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# check that errno gets forced to 0 if the piped program exited non-zero
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open NIL, '|exit 23;' or die "fork failed: $!";
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$! = 1;
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if (close NIL) {
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print "not ok 10\n# successful close\n";
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}
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elsif ($! != 0) {
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print "not ok 10\n# errno $!\n";
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}
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elsif ($? == 0) {
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print "not ok 10\n# status 0\n";
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}
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else {
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print "ok 10\n";
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}
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# check that status for the correct process is collected
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wait; # Collect from $pid
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my $zombie = fork or exit 37;
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my $pipe = open *FH, "sleep 2;exit 13|" or die "Open: $!\n";
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$SIG{ALRM} = sub { return };
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alarm(1);
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my $close = close FH;
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if ($? == 13*256 && ! length $close && ! $!) {
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print "ok 11\n";
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} else {
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print "not ok 11\n# close $close\$?=$? \$!=", $!+0, ":$!\n";
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};
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my $wait = wait;
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if ($? == 37*256 && $wait == $zombie && ! $!) {
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print "ok 12\n";
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} else {
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print "not ok 12\n# pid=$wait first=$pid pipe=$pipe zombie=$zombie me=$$ \$?=$? \$!=", $!+0, ":$!\n";
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}
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