Add test_option_safe_writes to tar tests

2 files changed, 78 insertions, 0 deletions

diff --git a/tar/test/CMakeLists.txt b/tar/test/CMakeLists.txt
index 459d9dcb..2cd573ac 100644
--- a/tar/test/CMakeLists.txt
+++ b/tar/test/CMakeLists.txt
@@ -59,6 +59,7 @@ IF(ENABLE_TAR AND ENABLE_TEST)
     test_option_q.c
     test_option_r.c
     test_option_s.c
+    test_option_safe_writes.c
     test_option_uid_uname.c
     test_option_uuencode.c
     test_option_xattrs.c
diff --git a/tar/test/test_option_safe_writes.c b/tar/test/test_option_safe_writes.c
new file mode 100644
index 00000000..8edf5c69
--- /dev/null
+++ b/tar/test/test_option_safe_writes.c
@@ -0,0 +1,77 @@
+/*-
+ * Copyright (c) 2020 Martin Matuska
+ * 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(S) ``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(S) 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.
+ */
+#include "test.h"
+__FBSDID("$FreeBSD$");
+
+DEFINE_TEST(test_option_safe_writes)
+{
+	/* Create files */
+	assertMakeDir("in", 0755);
+	assertEqualInt(0, chdir("in"));
+	assertMakeFile("f", 0644, "a");
+	assertMakeFile("fh", 0644, "b");
+	assertMakeFile("d", 0644, "c");
+	assertMakeFile("fs", 0644, "d");
+	assertMakeFile("ds", 0644, "e");
+	assertEqualInt(0, chdir(".."));
+
+	/* Tar files up */
+	assertEqualInt(0,
+	    systemf("%s -c -C in -f t.tar f fh d fs ds "
+	    ">pack.out 2>pack.err", testprog));
+
+        /* Verify that nothing went to stdout or stderr. */
+        assertEmptyFile("pack.err");
+        assertEmptyFile("pack.out");
+
+	/* Create various objects */
+	assertMakeDir("out", 0755);
+	assertEqualInt(0, chdir("out"));
+	assertMakeFile("f", 0644, "a");
+	assertMakeHardlink("fh", "f");
+	assertMakeDir("d", 0755);
+	if (canSymlink()) {
+		assertMakeSymlink("fs", "f", 0);
+		assertMakeSymlink("ds", "d", 1);
+	}
+	assertEqualInt(0, chdir(".."));
+
+	/* Extract created archive withe safe writes */
+	assertEqualInt(0,
+	    systemf("%s -x -C out --safe-writes -f t.tar "
+	    ">unpack.out 2>unpack.err", testprog));
+
+        /* Verify that nothing went to stdout or stderr. */
+        assertEmptyFile("unpack.err");
+        assertEmptyFile("unpack.out");
+
+	/* Verify that files were overwritten properly */
+	assertEqualInt(0, chdir("out"));
+	assertTextFileContents("a","f");
+	assertTextFileContents("b","fh");
+	assertTextFileContents("c","d");
+	assertTextFileContents("d","fs");
+	assertTextFileContents("e","ds");
+}