1 /*
2 * Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org>
3 * Copyright (c) 2014-2017 The strace developers.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "tests.h"
30
31 #if defined(HAVE_PREADV) && defined(HAVE_PWRITEV)
32
33 # include <fcntl.h>
34 # include <unistd.h>
35 # include <sys/uio.h>
36 # include <assert.h>
37
38 int
main(void)39 main(void)
40 {
41 const off_t offset = 0xdefaceddeadbeefLL;
42 char buf[4];
43 struct iovec iov = { buf, sizeof(buf) };
44
45 (void) close(0);
46 assert(open("/dev/zero", O_RDONLY) == 0);
47 assert(pread(0, buf, sizeof(buf), offset) == 4);
48 assert(preadv(0, &iov, 1, offset) == 4);
49 assert(!close(0));
50
51 assert(open("/dev/null", O_WRONLY) == 0);
52 assert(pwrite(0, buf, sizeof(buf), offset) == 4);
53 assert(pwritev(0, &iov, 1, offset) == 4);
54 assert(!close(0));
55
56 return 0;
57 }
58
59 #else
60
61 SKIP_MAIN_UNDEFINED("HAVE_PREADV && HAVE_PWRITEV")
62
63 #endif
64