tests: Added test for ntfscat_i.

Test is based on file signature, it checks whether the extracted file
is the $MFT.

Signed-off-by: Matteo Cafasso <noxdafox@gmail.com>

Makefile.am

@@ -66,6 +66,7 @@ SUBDIRS += tests/luks
 SUBDIRS += tests/md
 SUBDIRS += tests/selinux
 SUBDIRS += tests/ntfsclone
+SUBDIRS += tests/ntfscat
 SUBDIRS += tests/btrfs
 SUBDIRS += tests/xfs
 SUBDIRS += tests/charsets

configure.ac

@@ -272,6 +272,7 @@ AC_CONFIG_FILES([Makefile
                  tests/nbd/Makefile
                  tests/network/Makefile
                  tests/ntfsclone/Makefile
+                 tests/ntfscat/Makefile
                  tests/parallel/Makefile
                  tests/protocol/Makefile
                  tests/qemu/Makefile

tests/ntfscat/Makefile.am

@@ -0,0 +1,26 @@
+# libguestfs
+# Copyright (C) 2016 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+include $(top_srcdir)/subdir-rules.mk
+
+TESTS = \
+	test-ntfscat.sh
+
+TESTS_ENVIRONMENT = $(top_builddir)/run --test
+
+EXTRA_DIST = \
+	$(TESTS)

tests/ntfscat/test-ntfscat.sh

@@ -0,0 +1,53 @@
+#!/bin/bash -
+# libguestfs
+# Copyright (C) 2016 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# Test the ntfscat-i command.
+
+set -e
+
+if [ -n "$SKIP_TEST_NTFSCAT_SH" ]; then
+    echo "$0: test skipped because environment variable is set."
+    exit 77
+fi
+
+rm -f test-mft.bin
+
+# Skip if ntfs-3g is not supported by the appliance.
+if ! guestfish add /dev/null : run : available "ntfs3g"; then
+    echo "$0: skipped because ntfs-3g is not supported by the appliance"
+    exit 77
+fi
+
+if [ ! -s ../../test-data/phony-guests/windows.img ]; then
+    echo "$0: skipped because windows.img is zero-sized"
+    exit 77
+fi
+
+# download Master File Table ($MFT).
+guestfish --ro -a ../../test-data/phony-guests/windows.img <<EOF
+run
+ntfscat-i /dev/sda2 0 test-mft.bin
+EOF
+
+# test extracted file is the Master File Table
+if [ `head -c 5 test-mft.bin` != "FILE0" ]; then
+    echo "$0: wrong file extracted."
+    exit 1
+fi
+
+rm -f test-mft.bin