test-copy.c revision cda134ab1eac84f874aacf8e885a07112a7fd5ce
/***
This file is part of systemd
Copyright 2014 Ronny Chevalier
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <unistd.h>
#include "copy.h"
#include "path-util.h"
#include "fileio.h"
#include "mkdir.h"
#include "strv.h"
#include "macro.h"
#include "util.h"
static void test_copy_file(void) {
_cleanup_free_ char *buf = NULL;
char fn[] = "/tmp/test-copy_file.XXXXXX";
char fn_copy[] = "/tmp/test-copy_file.XXXXXX";
size_t sz = 0;
int fd;
fd = mkostemp_safe(fn, O_RDWR|O_CLOEXEC);
assert_se(fd >= 0);
close(fd);
fd = mkostemp_safe(fn_copy, O_RDWR|O_CLOEXEC);
assert_se(fd >= 0);
close(fd);
assert_se(write_string_file(fn, "foo bar bar bar foo") == 0);
assert_se(copy_file(fn, fn_copy, 0, 0644) == 0);
assert_se(read_full_file(fn_copy, &buf, &sz) == 0);
assert_se(streq(buf, "foo bar bar bar foo\n"));
assert_se(sz == 20);
unlink(fn);
unlink(fn_copy);
}
static void test_copy_file_fd(void) {
char in_fn[] = "/tmp/test-copy-file-fd-XXXXXX";
char out_fn[] = "/tmp/test-copy-file-fd-XXXXXX";
_cleanup_close_ int in_fd = -1, out_fd = -1;
char text[] = "boohoo\nfoo\n\tbar\n";
char buf[64] = {0};
in_fd = mkostemp_safe(in_fn, O_RDWR);
assert_se(in_fd >= 0);
out_fd = mkostemp_safe(out_fn, O_RDWR);
assert_se(out_fd >= 0);
assert_se(write_string_file(in_fn, text) == 0);
assert_se(copy_file_fd("/a/file/which/does/not/exist/i/guess", out_fd) < 0);
assert_se(copy_file_fd(in_fn, out_fd) >= 0);
assert_se(lseek(out_fd, SEEK_SET, 0) == 0);
assert_se(read(out_fd, buf, sizeof(buf)) == sizeof(text) - 1);
assert_se(streq(buf, text));
unlink(in_fn);
unlink(out_fn);
}
static void test_copy_tree(void) {
char original_dir[] = "/tmp/test-copy_tree/";
char copy_dir[] = "/tmp/test-copy_tree-copy/";
char **files = STRV_MAKE("file", "dir1/file", "dir1/dir2/file", "dir1/dir2/dir3/dir4/dir5/file");
char **links = STRV_MAKE("link", "file",
"link2", "dir1/file");
char **p, **link;
rm_rf_dangerous(copy_dir, false, true, false);
rm_rf_dangerous(original_dir, false, true, false);
STRV_FOREACH(p, files) {
char *f = strappenda(original_dir, *p);
assert_se(mkdir_parents(f, 0755) >= 0);
assert_se(write_string_file(f, "file") == 0);
}
STRV_FOREACH_PAIR(link, p, links) {
char *f = strappenda(original_dir, *p);
char *l = strappenda(original_dir, *link);
assert_se(mkdir_parents(l, 0755) >= 0);
assert_se(symlink(f, l) == 0);
}
assert_se(copy_tree(original_dir, copy_dir, true) == 0);
STRV_FOREACH(p, files) {
_cleanup_free_ char *buf = NULL;
size_t sz = 0;
char *f = strappenda(copy_dir, *p);
assert_se(access(f, F_OK) == 0);
assert_se(read_full_file(f, &buf, &sz) == 0);
assert_se(streq(buf, "file\n"));
}
STRV_FOREACH_PAIR(link, p, links) {
_cleanup_free_ char *target = NULL;
char *f = strappenda(original_dir, *p);
char *l = strappenda(copy_dir, *link);
assert_se(readlink_and_canonicalize(l, &target) == 0);
assert_se(path_equal(f, target));
}
assert_se(copy_tree(original_dir, copy_dir, false) < 0);
assert_se(copy_tree("/tmp/inexistent/foo/bar/fsdoi", copy_dir, false) < 0);
rm_rf_dangerous(copy_dir, false, true, false);
rm_rf_dangerous(original_dir, false, true, false);
}
int main(int argc, char *argv[]) {
test_copy_file();
test_copy_file_fd();
test_copy_tree();
return 0;
}