#include <unistd.h>
+#include "alloc-util.h"
#include "copy.h"
-#include "path-util.h"
+#include "fd-util.h"
#include "fileio.h"
+#include "fs-util.h"
+#include "log.h"
+#include "macro.h"
#include "mkdir.h"
+#include "path-util.h"
+#include "rm-rf.h"
+#include "string-util.h"
#include "strv.h"
-#include "macro.h"
+#include "user-util.h"
#include "util.h"
+#if 0 /// UNNEEDED by elogind
static void test_copy_file(void) {
_cleanup_free_ char *buf = NULL;
char fn[] = "/tmp/test-copy_file.XXXXXX";
size_t sz = 0;
int fd;
- fd = mkostemp_safe(fn, O_RDWR|O_CLOEXEC);
+ log_info("%s", __func__);
+
+ fd = mkostemp_safe(fn);
assert_se(fd >= 0);
close(fd);
- fd = mkostemp_safe(fn_copy, O_RDWR|O_CLOEXEC);
+ fd = mkostemp_safe(fn_copy);
assert_se(fd >= 0);
close(fd);
- assert_se(write_string_file(fn, "foo bar bar bar foo") == 0);
+ 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);
+ assert_se(copy_file(fn, fn_copy, 0, 0644, 0, COPY_REFLINK) == 0);
assert_se(read_full_file(fn_copy, &buf, &sz) == 0);
assert_se(streq(buf, "foo bar bar bar foo\n"));
char text[] = "boohoo\nfoo\n\tbar\n";
char buf[64] = {0};
- in_fd = mkostemp_safe(in_fn, O_RDWR);
+ log_info("%s", __func__);
+
+ in_fd = mkostemp_safe(in_fn);
assert_se(in_fd >= 0);
- out_fd = mkostemp_safe(out_fn, O_RDWR);
+ out_fd = mkostemp_safe(out_fn);
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(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, COPY_REFLINK) < 0);
+ assert_se(copy_file_fd(in_fn, out_fd, COPY_REFLINK) >= 0);
assert_se(lseek(out_fd, SEEK_SET, 0) == 0);
assert_se(read(out_fd, buf, sizeof(buf)) == sizeof(text) - 1);
char **links = STRV_MAKE("link", "file",
"link2", "dir1/file");
char **p, **link;
+ const char *unixsockp;
+ struct stat st;
+
+ log_info("%s", __func__);
- rm_rf_dangerous(copy_dir, false, true, false);
- rm_rf_dangerous(original_dir, false, true, false);
+ (void) rm_rf(copy_dir, REMOVE_ROOT|REMOVE_PHYSICAL);
+ (void) rm_rf(original_dir, REMOVE_ROOT|REMOVE_PHYSICAL);
STRV_FOREACH(p, files) {
- char *f = strappenda(original_dir, *p);
+ _cleanup_free_ char *f;
+
+ assert_se((f = strappend(original_dir, *p)));
assert_se(mkdir_parents(f, 0755) >= 0);
- assert_se(write_string_file(f, "file") == 0);
+ assert_se(write_string_file(f, "file", WRITE_STRING_FILE_CREATE) == 0);
}
STRV_FOREACH_PAIR(link, p, links) {
- char *f = strappenda(original_dir, *p);
- char *l = strappenda(original_dir, *link);
+ _cleanup_free_ char *f, *l;
+
+ assert_se((f = strappend(original_dir, *p)));
+ assert_se((l = strappend(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);
+ unixsockp = strjoina(original_dir, "unixsock");
+ assert_se(mknod(unixsockp, S_IFSOCK|0644, 0) >= 0);
+
+ assert_se(copy_tree(original_dir, copy_dir, UID_INVALID, GID_INVALID, COPY_REFLINK|COPY_MERGE) == 0);
STRV_FOREACH(p, files) {
- _cleanup_free_ char *buf = NULL;
+ _cleanup_free_ char *buf = NULL, *f;
size_t sz = 0;
- char *f = strappenda(copy_dir, *p);
+
+ assert_se((f = strappend(copy_dir, *p)));
assert_se(access(f, F_OK) == 0);
assert_se(read_full_file(f, &buf, &sz) == 0);
}
STRV_FOREACH_PAIR(link, p, links) {
- _cleanup_free_ char *target = NULL;
- char *f = strappenda(original_dir, *p);
- char *l = strappenda(copy_dir, *link);
+ _cleanup_free_ char *target = NULL, *f, *l;
+
+ assert_se((f = strjoin(original_dir, *p)));
+ assert_se((l = strjoin(copy_dir, *link)));
- assert_se(readlink_and_canonicalize(l, &target) == 0);
+ assert_se(readlink_and_canonicalize(l, NULL, &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);
+ unixsockp = strjoina(copy_dir, "unixsock");
+ assert_se(stat(unixsockp, &st) >= 0);
+ assert_se(S_ISSOCK(st.st_mode));
+
+ assert_se(copy_tree(original_dir, copy_dir, UID_INVALID, GID_INVALID, COPY_REFLINK) < 0);
+ assert_se(copy_tree("/tmp/inexistent/foo/bar/fsdoi", copy_dir, UID_INVALID, GID_INVALID, COPY_REFLINK) < 0);
+
+ (void) rm_rf(copy_dir, REMOVE_ROOT|REMOVE_PHYSICAL);
+ (void) rm_rf(original_dir, REMOVE_ROOT|REMOVE_PHYSICAL);
+}
+#endif // 0
+
+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, 0);
+ 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, 0);
+ assert_se(r == -EBADF);
+
+ r = copy_bytes(pipefd[1], pipefd[1], 1, 0);
+ assert_se(r == -EBADF);
+
+ r = copy_bytes(pipefd[1], infd, 1, 0);
+ assert_se(r == -EBADF);
+}
+
+static void test_copy_bytes_regular_file(const char *src, bool try_reflink, uint64_t max_bytes) {
+ char fn2[] = "/tmp/test-copy-file-XXXXXX";
+ char fn3[] = "/tmp/test-copy-file-XXXXXX";
+ _cleanup_close_ int fd = -1, fd2 = -1, fd3 = -1;
+ int r;
+ struct stat buf, buf2, buf3;
+
+ log_info("%s try_reflink=%s max_bytes=%" PRIu64, __func__, yes_no(try_reflink), max_bytes);
+
+ fd = open(src, O_RDONLY | O_CLOEXEC | O_NOCTTY);
+ assert_se(fd >= 0);
+
+ fd2 = mkostemp_safe(fn2);
+ assert_se(fd2 >= 0);
+
+ fd3 = mkostemp_safe(fn3);
+ assert_se(fd3 >= 0);
+
+ r = copy_bytes(fd, fd2, max_bytes, try_reflink ? COPY_REFLINK : 0);
+ if (max_bytes == (uint64_t) -1)
+ assert_se(r == 0);
+ else
+ assert_se(IN_SET(r, 0, 1));
+
+ assert_se(lseek(fd2, 0, SEEK_SET) == 0);
+
+ r = copy_bytes(fd2, fd3, max_bytes, try_reflink ? COPY_REFLINK : 0);
+ if (max_bytes == (uint64_t) -1)
+ assert_se(r == 0);
+ else
+ /* We cannot distinguish between the input being exactly max_bytes
+ * or longer than max_bytes (without trying to read one more byte,
+ * or calling stat, or FION_READ, etc, and we don't want to do any
+ * of that). So we expect "truncation" since we know that file we
+ * are copying is exactly max_bytes bytes. */
+ assert_se(r == 1);
+
+ assert_se(fstat(fd, &buf) == 0);
+ assert_se(fstat(fd2, &buf2) == 0);
+ assert_se(fstat(fd3, &buf3) == 0);
+
+ assert_se((uint64_t) buf2.st_size == MIN((uint64_t) buf.st_size, max_bytes));
+ assert_se(buf3.st_size == buf2.st_size);
- rm_rf_dangerous(copy_dir, false, true, false);
- rm_rf_dangerous(original_dir, false, true, false);
+ unlink(fn2);
+ unlink(fn3);
}
int main(int argc, char *argv[]) {
+#if 0 /// UNNEEDED by elogind
test_copy_file();
test_copy_file_fd();
test_copy_tree();
+#endif // 0
+ test_copy_bytes();
+ test_copy_bytes_regular_file(argv[0], false, (uint64_t) -1);
+ test_copy_bytes_regular_file(argv[0], true, (uint64_t) -1);
+ test_copy_bytes_regular_file(argv[0], false, 1000); /* smaller than copy buffer size */
+ test_copy_bytes_regular_file(argv[0], true, 1000);
+ test_copy_bytes_regular_file(argv[0], false, 32000); /* larger than copy buffer size */
+ test_copy_bytes_regular_file(argv[0], true, 32000);
return 0;
}