From 6f35be91c9e86e463bca7df6eadf05412c7b732c Mon Sep 17 00:00:00 2001
From: David Kalnischkies <david@kalnischkies.de>
Date: Thu, 9 Jun 2016 21:06:48 +0200
Subject: don't leak an FD in lz4 (de)compression

Seen first in #826783, but as this buglog also shows leaked uncompressed
files as well we don't close it just yet.
---
 test/interactive-helper/makefile        |  6 +++++
 test/interactive-helper/test_fileutl.cc | 43 +++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 test/interactive-helper/test_fileutl.cc

(limited to 'test/interactive-helper')

diff --git a/test/interactive-helper/makefile b/test/interactive-helper/makefile
index 4633b78ce..096767c41 100644
--- a/test/interactive-helper/makefile
+++ b/test/interactive-helper/makefile
@@ -33,6 +33,12 @@ LIB_MAKES = apt-pkg/makefile
 SOURCE = test_udevcdrom.cc
 include $(PROGRAM_H)
 
+PROGRAM=test_fileutl
+SLIBS = -lapt-pkg
+LIB_MAKES = apt-pkg/makefile
+SOURCE = test_fileutl.cc
+include $(PROGRAM_H)
+
 # Program for checking rpm versions
 #PROGRAM=rpmver
 #SLIBS = -lapt-pkg -lrpm
diff --git a/test/interactive-helper/test_fileutl.cc b/test/interactive-helper/test_fileutl.cc
new file mode 100644
index 000000000..e660c2981
--- /dev/null
+++ b/test/interactive-helper/test_fileutl.cc
@@ -0,0 +1,43 @@
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/error.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <fcntl.h>
+
+#include <iostream>
+#include <string>
+
+static void callsystem(std::string const &call)
+{
+   auto ret = system(call.c_str());
+   if (WIFEXITED(ret) == false || WEXITSTATUS(ret) != 0)
+      _error->Error("Calling %s failed!", call.c_str());
+}
+
+int main(int, char ** argv)
+{
+	auto const pid = getpid();
+	std::string ls;
+	strprintf(ls, "ls -l /proc/%d/fd", pid);
+	callsystem(ls);
+	FileFd t;
+	t.Open(argv[1], FileFd::ReadOnly, FileFd::Extension);
+	callsystem(ls);
+	char buf[1024];
+	unsigned long long act;
+	while (t.Read(buf, sizeof(buf), &act))
+		if (act == 0)
+			break;
+	callsystem(ls);
+	t.Seek(5);
+	callsystem(ls);
+	t.Close();
+	callsystem(ls);
+	auto const ret = _error->PendingError();
+	_error->DumpErrors();
+	return ret;
+}
-- 
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