From 1c444a75d1f67e5f5df98870cf8f15a86cc4b0a1 Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@altlinux.org>
Date: Mon, 18 Jul 2016 11:22:06 +0000
Subject: [PATCH] tests: check decoding of timeout argument of recvmmsg syscall

* tests/recvmmsg-timeout.c: New file.
* tests/recvmmsg-timeout.test: New test.
* tests/.gitignore: Add recvmmsg-timeout.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add recvmmsg-timeout.test.
---
 tests/.gitignore            |  1 +
 tests/Makefile.am           |  2 ++
 tests/recvmmsg-timeout.c    | 70 +++++++++++++++++++++++++++++++++++++
 tests/recvmmsg-timeout.test |  6 ++++
 4 files changed, 79 insertions(+)
 create mode 100644 tests/recvmmsg-timeout.c
 create mode 100755 tests/recvmmsg-timeout.test

diff --git a/tests/.gitignore b/tests/.gitignore
index 03309849..3cd1cfe8 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -186,6 +186,7 @@ readlinkat
 readv
 reboot
 recvfrom
+recvmmsg-timeout
 recvmsg
 remap_file_pages
 rename
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 3c873625..fe208f25 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -242,6 +242,7 @@ check_PROGRAMS = \
 	readv \
 	reboot \
 	recvfrom \
+	recvmmsg-timeout \
 	recvmsg \
 	remap_file_pages \
 	rename \
@@ -559,6 +560,7 @@ DECODER_TESTS = \
 	readv.test \
 	reboot.test \
 	recvfrom.test \
+	recvmmsg-timeout.test \
 	recvmsg.test \
 	remap_file_pages.test \
 	rename.test \
diff --git a/tests/recvmmsg-timeout.c b/tests/recvmmsg-timeout.c
new file mode 100644
index 00000000..4afd8a60
--- /dev/null
+++ b/tests/recvmmsg-timeout.c
@@ -0,0 +1,70 @@
+/*
+ * Check decoding of timeout argument of recvmmsg 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 <stdio.h>
+
+#include "msghdr.h"
+
+int
+main(void)
+{
+	int fds[2];
+	if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds))
+		perror_msg_and_skip("socketpair");
+
+	if (send(fds[1], "A", 1, 0) != 1)
+		perror_msg_and_skip("send");
+
+	char buf;
+	struct iovec iov = { .iov_base = &buf, .iov_len = sizeof(buf) };
+	struct mmsghdr mh = {
+		.msg_hdr = {
+			.msg_iov = &iov,
+			.msg_iovlen = 1
+		}
+	};
+	struct timespec t = { .tv_sec = 0, .tv_nsec = 12345678 };
+
+	int rc = recv_mmsg(-1, &mh, 1, 0, &t);
+	printf("recvmmsg(-1, %p, 1, 0, {0, 12345678})"
+	       " = %d %s (%m)\n", &mh, rc, errno2name());
+
+	rc = recv_mmsg(fds[0], &mh, 1, 0, &t);
+	if (rc < 0)
+		perror_msg_and_skip("recvmmsg");
+	printf("recvmmsg(%d, [{msg_hdr={msg_name=NULL, msg_namelen=0"
+	       ", msg_iov=[{iov_base=\"A\", iov_len=1}], msg_iovlen=1"
+	       ", msg_controllen=0, msg_flags=0}, msg_len=1}], 1, 0"
+	       ", {0, 12345678}) = %d (left {0, %d})\n",
+	       fds[0], rc, (int) t.tv_nsec);
+
+	puts("+++ exited with 0 +++");
+	return 0;
+}
diff --git a/tests/recvmmsg-timeout.test b/tests/recvmmsg-timeout.test
new file mode 100755
index 00000000..36a12221
--- /dev/null
+++ b/tests/recvmmsg-timeout.test
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Check decoding of timeout argument of recvmmsg syscall.
+
+. "${srcdir=.}/init.sh"
+run_strace_match_diff -a25 -e trace=recvmmsg
-- 
2.40.0