1 /*
2 * Check decoding of fallocate syscall.
3 *
4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include "tests.h"
31
32 #include <asm/unistd.h>
33
34 #if defined(__NR_fallocate) && defined(HAVE_FALLOCATE) && HAVE_FALLOCATE
35
36 # include <errno.h>
37 # include <fcntl.h>
38 # include <stdio.h>
39
40 # include "xlat.h"
41 # include "xlat/falloc_flags.h"
42
43 int
main(void)44 main(void)
45 {
46 static const int bogus_fd = 0xbeefface;
47 static const int bogus_mode = 0xdeadca75;
48 static const off_t bogus_offset = (off_t) 0xbadc0dedda7a1057LLU;
49 static const off_t bogus_len = (off_t) 0xbadfaceca7b0d1e5LLU;
50
51 long rc = fallocate(bogus_fd, bogus_mode, bogus_offset, bogus_len);
52 /*
53 * Workaround a bug fixed by commit glibc-2.11-346-gde240a0.
54 */
55 if (rc > 0) {
56 errno = rc;
57 rc = -1;
58 }
59 const char *errstr = sprintrc(rc);
60
61 printf("fallocate(%d, ", bogus_fd);
62 printflags(falloc_flags, (unsigned) bogus_mode, "FALLOC_FL_???");
63 printf(", %lld, %lld) = %s\n",
64 (long long) bogus_offset, (long long) bogus_len, errstr);
65
66 puts("+++ exited with 0 +++");
67
68 return 0;
69 }
70
71 #else
72
73 SKIP_MAIN_UNDEFINED("__NR_fallocate && HAVE_FALLOCATE");
74
75 #endif
76