1 /*
2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include "tests.h"
29 #include <asm/unistd.h>
30
31 #ifdef __NR_lseek
32
33 # include <stdio.h>
34 # include <unistd.h>
35
36 int
main(void)37 main(void)
38 {
39 const kernel_ulong_t offset = (kernel_ulong_t) 0xfacefeeddeadbeefULL;
40
41 if (sizeof(offset) > sizeof(long)) {
42 /*
43 * Cannot use syscall because it takes long arguments.
44 * Let's call lseek with hope it will invoke lseek syscall.
45 */
46 long long rc = lseek(-1, offset, SEEK_SET);
47 printf("lseek(-1, %lld, SEEK_SET) = %lld %s (%m)\n",
48 (long long) offset, rc, errno2name());
49 } else {
50 long rc = syscall(__NR_lseek, -1L, offset, SEEK_SET);
51 printf("lseek(-1, %ld, SEEK_SET) = %ld %s (%m)\n",
52 (long) offset, rc, errno2name());
53 }
54
55 puts("+++ exited with 0 +++");
56 return 0;
57 }
58
59 #else
60
61 SKIP_MAIN_UNDEFINED("__NR_lseek")
62
63 #endif
64