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
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "data-fd-util.h"
#include "fd-util.h"
#include "memory-util.h"
#include "process-util.h"
#include "tests.h"
#include "random-util.h"
static void test_acquire_data_fd_one(unsigned flags) {
char wbuffer[196*1024 - 7];
char rbuffer[sizeof(wbuffer)];
int fd;
fd = acquire_data_fd_full("foo", 3, flags);
assert_se(fd >= 0);
zero(rbuffer);
assert_se(read(fd, rbuffer, sizeof(rbuffer)) == 3);
ASSERT_STREQ(rbuffer, "foo");
fd = safe_close(fd);
fd = acquire_data_fd_full("", SIZE_MAX, flags);
assert_se(fd >= 0);
zero(rbuffer);
assert_se(read(fd, rbuffer, sizeof(rbuffer)) == 0);
ASSERT_STREQ(rbuffer, "");
fd = safe_close(fd);
random_bytes(wbuffer, sizeof(wbuffer));
fd = acquire_data_fd_full(wbuffer, sizeof(wbuffer), flags);
assert_se(fd >= 0);
zero(rbuffer);
assert_se(read(fd, rbuffer, sizeof(rbuffer)) == sizeof(rbuffer));
assert_se(memcmp(rbuffer, wbuffer, sizeof(rbuffer)) == 0);
fd = safe_close(fd);
}
TEST(acquire_data_fd) {
test_acquire_data_fd_one(0);
test_acquire_data_fd_one(ACQUIRE_NO_DEV_NULL);
test_acquire_data_fd_one(ACQUIRE_NO_MEMFD);
test_acquire_data_fd_one(ACQUIRE_NO_DEV_NULL|ACQUIRE_NO_MEMFD);
test_acquire_data_fd_one(ACQUIRE_NO_PIPE);
test_acquire_data_fd_one(ACQUIRE_NO_DEV_NULL|ACQUIRE_NO_PIPE);
test_acquire_data_fd_one(ACQUIRE_NO_MEMFD|ACQUIRE_NO_PIPE);
test_acquire_data_fd_one(ACQUIRE_NO_DEV_NULL|ACQUIRE_NO_MEMFD|ACQUIRE_NO_PIPE);
test_acquire_data_fd_one(ACQUIRE_NO_DEV_NULL|ACQUIRE_NO_MEMFD|ACQUIRE_NO_PIPE|ACQUIRE_NO_TMPFILE);
}
static void assert_equal_fd(int fd1, int fd2) {
for (;;) {
uint8_t a[4096], b[4096];
ssize_t x, y;
x = read(fd1, a, sizeof(a));
assert_se(x >= 0);
y = read(fd2, b, sizeof(b));
assert_se(y >= 0);
assert_se(x == y);
if (x == 0)
break;
assert_se(memcmp(a, b, x) == 0);
}
}
TEST(copy_data_fd) {
_cleanup_close_ int fd1 = -EBADF, fd2 = -EBADF;
_cleanup_close_pair_ int sfd[2] = EBADF_PAIR;
_cleanup_(sigkill_waitp) pid_t pid = -1;
int r;
fd1 = open("/etc/fstab", O_RDONLY|O_CLOEXEC);
if (fd1 >= 0) {
fd2 = copy_data_fd(fd1);
assert_se(fd2 >= 0);
assert_se(lseek(fd1, 0, SEEK_SET) == 0);
assert_equal_fd(fd1, fd2);
}
fd1 = safe_close(fd1);
fd2 = safe_close(fd2);
fd1 = acquire_data_fd("hallo");
assert_se(fd1 >= 0);
fd2 = copy_data_fd(fd1);
assert_se(fd2 >= 0);
safe_close(fd1);
fd1 = acquire_data_fd("hallo");
assert_se(fd1 >= 0);
assert_equal_fd(fd1, fd2);
fd1 = safe_close(fd1);
fd2 = safe_close(fd2);
assert_se(socketpair(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, sfd) >= 0);
r = safe_fork("(sd-pipe)", FORK_RESET_SIGNALS|FORK_DEATHSIG_SIGTERM|FORK_LOG, &pid);
assert_se(r >= 0);
if (r == 0) {
/* child */
sfd[0] = safe_close(sfd[0]);
for (uint64_t i = 0; i < 1536*1024 / sizeof(uint64_t); i++)
assert_se(write(sfd[1], &i, sizeof(i)) == sizeof(i));
sfd[1] = safe_close(sfd[1]);
_exit(EXIT_SUCCESS);
}
sfd[1] = safe_close(sfd[1]);
fd2 = copy_data_fd(sfd[0]);
assert_se(fd2 >= 0);
uint64_t j;
for (uint64_t i = 0; i < 1536*1024 / sizeof(uint64_t); i++) {
assert_se(read(fd2, &j, sizeof(j)) == sizeof(j));
assert_se(i == j);
}
assert_se(read(fd2, &j, sizeof(j)) == 0);
}
DEFINE_TEST_MAIN(LOG_DEBUG);
|
