]>
git.ipfire.org Git - thirdparty/systemd.git/blob - src/test/test-copy.c
2 This file is part of systemd
4 Copyright 2014 Ronny Chevalier
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include "alloc-util.h"
30 #include "path-util.h"
32 #include "string-util.h"
36 static void test_copy_file(void) {
37 _cleanup_free_
char *buf
= NULL
;
38 char fn
[] = "/tmp/test-copy_file.XXXXXX";
39 char fn_copy
[] = "/tmp/test-copy_file.XXXXXX";
43 log_info("%s", __func__
);
45 fd
= mkostemp_safe(fn
, O_RDWR
|O_CLOEXEC
);
49 fd
= mkostemp_safe(fn_copy
, O_RDWR
|O_CLOEXEC
);
53 assert_se(write_string_file(fn
, "foo bar bar bar foo", WRITE_STRING_FILE_CREATE
) == 0);
55 assert_se(copy_file(fn
, fn_copy
, 0, 0644, 0) == 0);
57 assert_se(read_full_file(fn_copy
, &buf
, &sz
) == 0);
58 assert_se(streq(buf
, "foo bar bar bar foo\n"));
65 static void test_copy_file_fd(void) {
66 char in_fn
[] = "/tmp/test-copy-file-fd-XXXXXX";
67 char out_fn
[] = "/tmp/test-copy-file-fd-XXXXXX";
68 _cleanup_close_
int in_fd
= -1, out_fd
= -1;
69 char text
[] = "boohoo\nfoo\n\tbar\n";
72 log_info("%s", __func__
);
74 in_fd
= mkostemp_safe(in_fn
, O_RDWR
);
75 assert_se(in_fd
>= 0);
76 out_fd
= mkostemp_safe(out_fn
, O_RDWR
);
77 assert_se(out_fd
>= 0);
79 assert_se(write_string_file(in_fn
, text
, WRITE_STRING_FILE_CREATE
) == 0);
80 assert_se(copy_file_fd("/a/file/which/does/not/exist/i/guess", out_fd
, true) < 0);
81 assert_se(copy_file_fd(in_fn
, out_fd
, true) >= 0);
82 assert_se(lseek(out_fd
, SEEK_SET
, 0) == 0);
84 assert_se(read(out_fd
, buf
, sizeof(buf
)) == sizeof(text
) - 1);
85 assert_se(streq(buf
, text
));
91 static void test_copy_tree(void) {
92 char original_dir
[] = "/tmp/test-copy_tree/";
93 char copy_dir
[] = "/tmp/test-copy_tree-copy/";
94 char **files
= STRV_MAKE("file", "dir1/file", "dir1/dir2/file", "dir1/dir2/dir3/dir4/dir5/file");
95 char **links
= STRV_MAKE("link", "file",
96 "link2", "dir1/file");
98 const char *unixsockp
;
101 log_info("%s", __func__
);
103 (void) rm_rf(copy_dir
, REMOVE_ROOT
|REMOVE_PHYSICAL
);
104 (void) rm_rf(original_dir
, REMOVE_ROOT
|REMOVE_PHYSICAL
);
106 STRV_FOREACH(p
, files
) {
107 char *f
= strjoina(original_dir
, *p
);
109 assert_se(mkdir_parents(f
, 0755) >= 0);
110 assert_se(write_string_file(f
, "file", WRITE_STRING_FILE_CREATE
) == 0);
113 STRV_FOREACH_PAIR(link
, p
, links
) {
114 char *f
= strjoina(original_dir
, *p
);
115 char *l
= strjoina(original_dir
, *link
);
117 assert_se(mkdir_parents(l
, 0755) >= 0);
118 assert_se(symlink(f
, l
) == 0);
121 unixsockp
= strjoina(original_dir
, "unixsock");
122 assert_se(mknod(unixsockp
, S_IFSOCK
|0644, 0) >= 0);
124 assert_se(copy_tree(original_dir
, copy_dir
, true) == 0);
126 STRV_FOREACH(p
, files
) {
127 _cleanup_free_
char *buf
= NULL
;
129 char *f
= strjoina(copy_dir
, *p
);
131 assert_se(access(f
, F_OK
) == 0);
132 assert_se(read_full_file(f
, &buf
, &sz
) == 0);
133 assert_se(streq(buf
, "file\n"));
136 STRV_FOREACH_PAIR(link
, p
, links
) {
137 _cleanup_free_
char *target
= NULL
;
138 char *f
= strjoina(original_dir
, *p
);
139 char *l
= strjoina(copy_dir
, *link
);
141 assert_se(readlink_and_canonicalize(l
, &target
) == 0);
142 assert_se(path_equal(f
, target
));
145 unixsockp
= strjoina(copy_dir
, "unixsock");
146 assert_se(stat(unixsockp
, &st
) >= 0);
147 assert_se(S_ISSOCK(st
.st_mode
));
149 assert_se(copy_tree(original_dir
, copy_dir
, false) < 0);
150 assert_se(copy_tree("/tmp/inexistent/foo/bar/fsdoi", copy_dir
, false) < 0);
152 (void) rm_rf(copy_dir
, REMOVE_ROOT
|REMOVE_PHYSICAL
);
153 (void) rm_rf(original_dir
, REMOVE_ROOT
|REMOVE_PHYSICAL
);
156 static void test_copy_bytes(void) {
157 _cleanup_close_pair_
int pipefd
[2] = {-1, -1};
158 _cleanup_close_
int infd
= -1;
160 char buf
[1024], buf2
[1024];
162 infd
= open("/usr/lib/os-release", O_RDONLY
|O_CLOEXEC
);
164 infd
= open("/etc/os-release", O_RDONLY
|O_CLOEXEC
);
165 assert_se(infd
>= 0);
167 assert_se(pipe2(pipefd
, O_CLOEXEC
) == 0);
169 r
= copy_bytes(infd
, pipefd
[1], (uint64_t) -1, false);
172 r
= read(pipefd
[0], buf
, sizeof(buf
));
175 assert_se(lseek(infd
, 0, SEEK_SET
) == 0);
176 r2
= read(infd
, buf2
, sizeof(buf2
));
179 assert_se(strneq(buf
, buf2
, r
));
181 /* test copy_bytes with invalid descriptors */
182 r
= copy_bytes(pipefd
[0], pipefd
[0], 1, false);
183 assert_se(r
== -EBADF
);
185 r
= copy_bytes(pipefd
[1], pipefd
[1], 1, false);
186 assert_se(r
== -EBADF
);
188 r
= copy_bytes(pipefd
[1], infd
, 1, false);
189 assert_se(r
== -EBADF
);
192 static void test_copy_bytes_regular_file(const char *src
, bool try_reflink
, uint64_t max_bytes
) {
193 char fn2
[] = "/tmp/test-copy-file-XXXXXX";
194 char fn3
[] = "/tmp/test-copy-file-XXXXXX";
195 _cleanup_close_
int fd
= -1, fd2
= -1, fd3
= -1;
197 struct stat buf
, buf2
, buf3
;
199 log_info("%s try_reflink=%s max_bytes=%" PRIu64
, __func__
, yes_no(try_reflink
), max_bytes
);
201 fd
= open(src
, O_RDONLY
| O_CLOEXEC
| O_NOCTTY
);
204 fd2
= mkostemp_safe(fn2
, O_RDWR
);
207 fd3
= mkostemp_safe(fn3
, O_WRONLY
);
210 r
= copy_bytes(fd
, fd2
, max_bytes
, try_reflink
);
211 if (max_bytes
== (uint64_t) -1)
214 assert_se(IN_SET(r
, 0, 1));
216 assert_se(lseek(fd2
, 0, SEEK_SET
) == 0);
218 r
= copy_bytes(fd2
, fd3
, max_bytes
, try_reflink
);
219 if (max_bytes
== (uint64_t) -1)
222 /* We cannot distinguish between the input being exactly max_bytes
223 * or longer than max_bytes (without trying to read one more byte,
224 * or calling stat, or FION_READ, etc, and we don't want to do any
225 * of that). So we expect "truncation" since we know that file we
226 * are copying is exactly max_bytes bytes. */
229 assert_se(fstat(fd
, &buf
) == 0);
230 assert_se(fstat(fd2
, &buf2
) == 0);
231 assert_se(fstat(fd3
, &buf3
) == 0);
233 assert_se((uint64_t) buf2
.st_size
== MIN((uint64_t) buf
.st_size
, max_bytes
));
234 assert_se(buf3
.st_size
== buf2
.st_size
);
240 int main(int argc
, char *argv
[]) {
245 test_copy_bytes_regular_file(argv
[0], false, (uint64_t) -1);
246 test_copy_bytes_regular_file(argv
[0], true, (uint64_t) -1);
247 test_copy_bytes_regular_file(argv
[0], false, 1000); /* smaller than copy buffer size */
248 test_copy_bytes_regular_file(argv
[0], true, 1000);
249 test_copy_bytes_regular_file(argv
[0], false, 32000); /* larger than copy buffer size */
250 test_copy_bytes_regular_file(argv
[0], true, 32000);