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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
/* Tests of mkfifoat and mknodat.
Copyright (C) 2009-2022 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Eric Blake <ebb9@byu.net>, 2009. */
#include <config.h>
#include <sys/stat.h>
#include "signature.h"
SIGNATURE_CHECK (mkfifoat, int, (int, char const *, mode_t));
SIGNATURE_CHECK (mknodat, int, (int, char const *, mode_t, dev_t));
#include <fcntl.h>
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ignore-value.h"
#include "macros.h"
#define BASE "test-mkfifoat.t"
#include "test-mkfifo.h"
typedef int (*test_func) (int, char const *, mode_t);
static int dfd = AT_FDCWD;
/* Wrapper to test mknodat like mkfifoat. */
static int
test_mknodat (int fd, char const *name, mode_t mode)
{
/* This is the only portable use of mknodat, per POSIX. */
return mknodat (fd, name, mode | S_IFIFO, 0);
}
/* Wrapper to test mkfifoat like mkfifo. */
static int
do_mkfifoat (char const *name, mode_t mode)
{
return mkfifoat (dfd, name, mode);
}
/* Wrapper to test mknodat like mkfifo. */
static int
do_mknodat (char const *name, mode_t mode)
{
return mknodat (dfd, name, mode | S_IFIFO, 0);
}
int
main (void)
{
int i;
test_func funcs[2] = { mkfifoat, test_mknodat };
int result;
/* Remove any leftovers from a previous partial run. */
ignore_value (system ("rm -rf " BASE "*"));
/* Basic tests. */
result = test_mkfifo (do_mkfifoat, true);
ASSERT (test_mkfifo (do_mknodat, false) == result);
dfd = open (".", O_RDONLY);
ASSERT (0 <= dfd);
ASSERT (test_mkfifo (do_mkfifoat, false) == result);
ASSERT (test_mkfifo (do_mknodat, false) == result);
/* Test directory-relative handling of both functions. */
for (i = 0; i < 2; i++)
{
struct stat st;
test_func func = funcs[i];
/* Test behaviour for invalid file descriptors. */
{
errno = 0;
ASSERT (func (-1, "foo", 0600) == -1);
ASSERT (errno == EBADF
|| errno == ENOSYS /* seen on mingw */
);
}
{
close (99);
errno = 0;
ASSERT (func (99, "foo", 0600) == -1);
ASSERT (errno == EBADF
|| errno == ENOSYS /* seen on mingw */
);
}
/* Create fifo while cwd is '.', then stat it from '..'. */
if (func (AT_FDCWD, BASE "fifo", 0600) != 0)
ASSERT (errno == ENOSYS); /* seen on native Windows */
else
{
errno = 0;
ASSERT (func (dfd, BASE "fifo", 0600) == -1);
ASSERT (errno == EEXIST);
ASSERT (chdir ("..") == 0);
errno = 0;
ASSERT (fstatat (AT_FDCWD, BASE "fifo", &st, 0) == -1);
ASSERT (errno == ENOENT);
memset (&st, 0, sizeof st);
ASSERT (fstatat (dfd, BASE "fifo", &st, 0) == 0);
ASSERT (S_ISFIFO (st.st_mode));
ASSERT (unlinkat (dfd, BASE "fifo", 0) == 0);
}
/* Create fifo while cwd is '..', then stat it from '.'. */
if (func (dfd, BASE "fifo", 0600) != 0)
ASSERT (errno == ENOSYS); /* seen on native Windows */
else
{
ASSERT (fchdir (dfd) == 0);
errno = 0;
ASSERT (func (AT_FDCWD, BASE "fifo", 0600) == -1);
ASSERT (errno == EEXIST);
memset (&st, 0, sizeof st);
ASSERT (fstatat (AT_FDCWD, BASE "fifo", &st, AT_SYMLINK_NOFOLLOW)
== 0);
ASSERT (S_ISFIFO (st.st_mode));
memset (&st, 0, sizeof st);
ASSERT (fstatat (dfd, BASE "fifo", &st, AT_SYMLINK_NOFOLLOW) == 0);
ASSERT (S_ISFIFO (st.st_mode));
ASSERT (unlink (BASE "fifo") == 0);
}
}
ASSERT (close (dfd) == 0);
return 0;
}
|
