1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
/*
* Copyright (c) 2016-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <asm/unistd.h>
#ifdef __NR_mknodat
# include <stdio.h>
# include <sys/stat.h>
# include <sys/sysmacros.h>
# include <unistd.h>
static const char sample[] = "mknodat_sample";
static const long int fd = (long int) 0xdeadbeefffffffffULL;
static long
call_mknodat(unsigned short mode, unsigned long dev)
{
unsigned long lmode = (unsigned long) 0xffffffffffff0000ULL | mode;
return syscall(__NR_mknodat, fd, sample, lmode, dev);
}
int
main(void)
{
unsigned long dev = (unsigned long) 0xdeadbeefbadc0dedULL;
long rc = call_mknodat(0, dev);
printf("mknodat(-1, \"%s\", 000) = %ld %s (%m)\n",
sample, rc, errno2name());
rc = call_mknodat(0xffff, dev);
printf("mknodat(-1, \"%s\", %#03ho) = %ld %s (%m)\n",
sample, (unsigned short) -1, rc, errno2name());
rc = call_mknodat(S_IFREG, 0);
printf("mknodat(-1, \"%s\", S_IFREG|000) = %ld %s (%m)\n",
sample, rc, errno2name());
rc = call_mknodat(S_IFDIR | 06, 0);
printf("mknodat(-1, \"%s\", S_IFDIR|006) = %ld %s (%m)\n",
sample, rc, errno2name());
rc = call_mknodat(S_IFLNK | 060, 0);
printf("mknodat(-1, \"%s\", S_IFLNK|060) = %ld %s (%m)\n",
sample, rc, errno2name());
rc = call_mknodat(S_IFIFO | 0600, 0);
printf("mknodat(-1, \"%s\", S_IFIFO|0600) = %ld %s (%m)\n",
sample, rc, errno2name());
dev = (unsigned long) 0xdeadbeef00000000ULL | makedev(1, 7);
rc = call_mknodat(S_IFCHR | 024, dev);
printf("mknodat(-1, \"%s\", S_IFCHR|024, makedev(0x1, 0x7)) = %ld %s (%m)\n",
sample, rc, errno2name());
const unsigned short mode = (0xffff & ~S_IFMT) | S_IFBLK;
dev = (unsigned long) 0xdeadbeefbadc0dedULL;
rc = call_mknodat(mode, dev);
printf("mknodat(-1, \"%s\", S_IFBLK|S_ISUID|S_ISGID|S_ISVTX|%#03ho"
", makedev(%#x, %#x)) = %ld %s (%m)\n",
sample, (short) (mode & ~(S_IFMT|S_ISUID|S_ISGID|S_ISVTX)),
major((unsigned) dev), minor((unsigned) dev),
rc, errno2name());
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_mknodat")
#endif
|
