50 lines
1.1 KiB
Perl
50 lines
1.1 KiB
Perl
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#!perl
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# vim:ts=4:sw=4:expandtab
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#
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# Verifies that i3 does not leak any file descriptors in 'exec'.
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#
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use i3test;
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use POSIX qw(mkfifo);
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use File::Temp qw(:POSIX tempfile);
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my $i3 = i3(get_socket_path());
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my $tmp = tmpnam();
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mkfifo($tmp, 0600) or die "Could not create FIFO in $tmp";
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my ($outfh, $outname) = tempfile('/tmp/i3-ls-output.XXXXXX', UNLINK => 1);
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cmd qq|exec ls -l /proc/self/fd >$outname && echo done >$tmp|;
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open(my $fh, '<', $tmp);
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# Block on the FIFO, this will return exactly when the command is done.
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<$fh>;
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close($fh);
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unlink($tmp);
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# Get the ls /proc/self/fd output
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my $output;
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{
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local $/;
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$output = <$outfh>;
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}
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close($outfh);
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# Split lines, keep only those which are symlinks.
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my @lines = grep { /->/ } split("\n", $output);
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my %fds = map { /([0-9]+) -> (.+)$/; ($1, $2) } @lines;
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# Filter out 0, 1, 2 (stdin, stdout, stderr).
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delete $fds{0};
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delete $fds{1};
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delete $fds{2};
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# Filter out the fd which is caused by ls calling readdir().
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for my $fd (keys %fds) {
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delete $fds{$fd} if $fds{$fd} =~ m,^/proc/\d+/fd$,;
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}
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is(scalar keys %fds, 0, 'No file descriptors leaked');
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done_testing;
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