tests: check decoding of futimesat syscall

* tests/futimesat.c: New file.
* tests/futimesat.test: New test.
* tests/.gitignore: Add futimesat.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add futimesat.test.

tests/.gitignore

@@ -61,6 +61,7 @@ fstatfs64
 fsync
 ftruncate
 ftruncate64
+futimesat
 getcwd
 getdents
 getdents64

tests/Makefile.am

@@ -115,6 +115,7 @@ check_PROGRAMS = \
 	fsync \
 	ftruncate \
 	ftruncate64 \
+	futimesat \
 	getcwd \
 	getdents \
 	getdents64 \
@@ -379,6 +380,7 @@ DECODER_TESTS = \
 	fsync.test \
 	ftruncate.test \
 	ftruncate64.test \
+	futimesat.test \
 	getcwd.test \
 	getdents.test \
 	getdents64.test \

tests/futimesat.c

@@ -0,0 +1,87 @@
+/*
+ * Check decoding of futimesat syscall.
+ *
+ * Copyright (c) 2015-2016 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>
+
+#ifdef __NR_futimesat
+
+# include <stdio.h>
+# include <sys/time.h>
+# include <unistd.h>
+
+#define CAST_NUM(n)						\
+	(sizeof(n) == sizeof(long) ?				\
+		(unsigned long long) (unsigned long) (n) :	\
+		(unsigned long long) (n))
+
+int
+main(void)
+{
+	struct timeval tv;
+	if (gettimeofday(&tv, NULL))
+		perror_msg_and_fail("gettimeofday");
+
+	static const char sample[] = "futimesat_sample";
+	unsigned long dirfd = (unsigned long) 0xdeadbeef00000000 | -100U;
+
+	long rc = syscall(__NR_futimesat, dirfd, sample, 0);
+	printf("futimesat(AT_FDCWD, \"%s\", NULL) = %ld %s (%m)\n",
+	       sample, rc, errno2name());
+
+	struct timeval *const ts = tail_alloc(sizeof(*ts) * 2);
+	(void) tail_alloc(1);
+	dirfd = (unsigned long) 0xdeadbeefffffffff;
+
+	rc = syscall(__NR_futimesat, dirfd, 0, ts + 1);
+	printf("futimesat(%d, NULL, %p) = %ld %s (%m)\n",
+	       (int) dirfd, ts + 1, rc, errno2name());
+
+	ts[0].tv_sec = tv.tv_sec;
+	ts[0].tv_usec = tv.tv_usec;
+	ts[1].tv_sec = tv.tv_sec - 1;
+	ts[1].tv_usec = tv.tv_usec + 123456;
+
+	(void) close(0);
+	rc = syscall(__NR_futimesat, 0, "", ts);
+	printf("futimesat(0, \"\", [{%llu, %llu}, {%llu, %llu}])"
+	       " = %ld %s (%m)\n",
+	       CAST_NUM(ts[0].tv_sec), CAST_NUM(ts[0].tv_usec),
+	       CAST_NUM(ts[1].tv_sec), CAST_NUM(ts[1].tv_usec),
+	       rc, errno2name());
+
+	puts("+++ exited with 0 +++");
+	return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("__NR_futimesat")
+
+#endif

tests/futimesat.test

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Check futimesat syscall decoding.
+
+. "${srcdir=.}/init.sh"
+run_strace_match_diff