From 35e97a78c7469b7dae34ea9280b52ab61f76b2b8 Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@altlinux.org>
Date: Sat, 2 Apr 2016 14:07:02 +0000
Subject: [PATCH] tests: add fchownat.test

* tests/fchownat.c: New file.
* tests/fchownat.test: New test.
* tests/.gitignore: Add fchownat.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add fchownat.test.
---
 tests/.gitignore    |  1 +
 tests/Makefile.am   |  2 ++
 tests/fchownat.c    | 78 +++++++++++++++++++++++++++++++++++++++++++++
 tests/fchownat.test |  6 ++++
 4 files changed, 87 insertions(+)
 create mode 100644 tests/fchownat.c
 create mode 100755 tests/fchownat.test

diff --git a/tests/.gitignore b/tests/.gitignore
index 43d3fb93..3d6d93e9 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -35,6 +35,7 @@ faccessat
 fanotify_mark
 fchmod
 fchmodat
+fchownat
 fcntl
 fcntl64
 fdatasync
diff --git a/tests/Makefile.am b/tests/Makefile.am
index ba5b3017..12afd496 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -86,6 +86,7 @@ check_PROGRAMS = \
 	fanotify_mark \
 	fchmod \
 	fchmodat \
+	fchownat \
 	fcntl \
 	fcntl64 \
 	fdatasync \
@@ -277,6 +278,7 @@ DECODER_TESTS = \
 	fanotify_mark.test \
 	fchmod.test \
 	fchmodat.test \
+	fchownat.test \
 	fcntl.test \
 	fcntl64.test \
 	fdatasync.test \
diff --git a/tests/fchownat.c b/tests/fchownat.c
new file mode 100644
index 00000000..b1d06f62
--- /dev/null
+++ b/tests/fchownat.c
@@ -0,0 +1,78 @@
+/*
+ * Check decoding of fchownat syscall.
+ *
+ * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 "tests.h"
+#include <sys/syscall.h>
+#include <fcntl.h>
+
+#if defined __NR_fchownat && defined AT_FDCWD && defined AT_SYMLINK_NOFOLLOW
+
+# include <errno.h>
+# include <stdio.h>
+# include <unistd.h>
+
+int
+main(void)
+{
+	static const char sample[] = "fchownat_sample";
+	uid_t uid = geteuid();
+	uid_t gid = getegid();
+
+	if (open(sample, O_RDONLY | O_CREAT, 0400) == -1)
+		perror_msg_and_fail("open");
+
+	if (syscall(__NR_fchownat, AT_FDCWD, sample, uid, gid, 0) == 0) {
+		printf("fchownat(AT_FDCWD, \"%s\", %d, %d, 0) = 0\n",
+		       sample, uid, gid);
+
+		if (unlink(sample))
+			perror_msg_and_fail("unlink");
+
+		if (syscall(__NR_fchownat, AT_FDCWD, sample,
+			    -1, -1L, AT_SYMLINK_NOFOLLOW) != -1)
+			perror_msg_and_fail("fchownat");
+
+		printf("fchownat(AT_FDCWD, \"%s\", -1, -1, AT_SYMLINK_NOFOLLOW)"
+		       " = -1 ENOENT (%m)\n", sample);
+	} else {
+		if (errno != ENOSYS)
+			perror_msg_and_fail("fchownat");
+		printf("fchownat(AT_FDCWD, \"%s\", %d, %d, 0)"
+		       " = -1 ENOSYS (%m)\n", sample, uid, gid);
+	}
+
+	puts("+++ exited with 0 +++");
+	return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("__NR_fchownat && AT_FDCWD && AT_SYMLINK_NOFOLLOW")
+
+#endif
diff --git a/tests/fchownat.test b/tests/fchownat.test
new file mode 100755
index 00000000..e5d0f285
--- /dev/null
+++ b/tests/fchownat.test
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Check decoding of fchownat syscall.
+
+. "${srcdir=.}/init.sh"
+run_strace_match_diff