| /*** |
| 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 "alloc-util.h" |
| #include "copy.h" |
| #include "fd-util.h" |
| #include "fileio.h" |
| #include "fs-util.h" |
| #include "macro.h" |
| #include "mkdir.h" |
| #include "path-util.h" |
| #include "rm-rf.h" |
| #include "string-util.h" |
| #include "strv.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", WRITE_STRING_FILE_CREATE) == 0); |
| |
| assert_se(copy_file(fn, fn_copy, 0, 0644, 0) == 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, WRITE_STRING_FILE_CREATE) == 0); |
| assert_se(copy_file_fd("/a/file/which/does/not/exist/i/guess", out_fd, true) < 0); |
| assert_se(copy_file_fd(in_fn, out_fd, true) >= 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; |
| |
| (void) rm_rf(copy_dir, REMOVE_ROOT|REMOVE_PHYSICAL); |
| (void) rm_rf(original_dir, REMOVE_ROOT|REMOVE_PHYSICAL); |
| |
| STRV_FOREACH(p, files) { |
| char *f = strjoina(original_dir, *p); |
| |
| assert_se(mkdir_parents(f, 0755) >= 0); |
| assert_se(write_string_file(f, "file", WRITE_STRING_FILE_CREATE) == 0); |
| } |
| |
| STRV_FOREACH_PAIR(link, p, links) { |
| char *f = strjoina(original_dir, *p); |
| char *l = strjoina(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 = strjoina(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 = strjoina(original_dir, *p); |
| char *l = strjoina(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); |
| |
| (void) rm_rf(copy_dir, REMOVE_ROOT|REMOVE_PHYSICAL); |
| (void) rm_rf(original_dir, REMOVE_ROOT|REMOVE_PHYSICAL); |
| } |
| |
| static void test_copy_bytes(void) { |
| _cleanup_close_pair_ int pipefd[2] = {-1, -1}; |
| _cleanup_close_ int infd = -1; |
| int r, r2; |
| char buf[1024], buf2[1024]; |
| |
| infd = open("/usr/lib/os-release", O_RDONLY|O_CLOEXEC); |
| if (infd < 0) |
| infd = open("/etc/os-release", O_RDONLY|O_CLOEXEC); |
| assert_se(infd >= 0); |
| |
| assert_se(pipe2(pipefd, O_CLOEXEC) == 0); |
| |
| r = copy_bytes(infd, pipefd[1], (uint64_t) -1, false); |
| assert_se(r == 0); |
| |
| r = read(pipefd[0], buf, sizeof(buf)); |
| assert_se(r >= 0); |
| |
| assert_se(lseek(infd, 0, SEEK_SET) == 0); |
| r2 = read(infd, buf2, sizeof(buf2)); |
| assert_se(r == r2); |
| |
| assert_se(strneq(buf, buf2, r)); |
| |
| /* test copy_bytes with invalid descriptors */ |
| r = copy_bytes(pipefd[0], pipefd[0], 1, false); |
| assert_se(r == -EBADF); |
| |
| r = copy_bytes(pipefd[1], pipefd[1], 1, false); |
| assert_se(r == -EBADF); |
| |
| r = copy_bytes(pipefd[1], infd, 1, false); |
| assert_se(r == -EBADF); |
| } |
| |
| int main(int argc, char *argv[]) { |
| test_copy_file(); |
| test_copy_file_fd(); |
| test_copy_tree(); |
| test_copy_bytes(); |
| |
| return 0; |
| } |