1 files changed, 64 insertions, 0 deletions
diff --git a/src/test/test-fiemap.c b/src/test/test-fiemap.c
new file mode 100644
index 0000000..380638b
--- /dev/null
+++ b/src/test/test-fiemap.c
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <fcntl.h>
+#include <inttypes.h>
+#include <linux/fiemap.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "errno-util.h"
+#include "fd-util.h"
+#include "log.h"
+#include "hibernate-util.h"
+#include "tests.h"
+
+static int test_fiemap_one(const char *path) {
+        _cleanup_free_ struct fiemap *fiemap = NULL;
+        _cleanup_close_ int fd = -EBADF;
+        int r;
+
+        log_info("/* %s */", __func__);
+
+        fd = open(path, O_RDONLY | O_CLOEXEC | O_NONBLOCK);
+        if (fd < 0)
+                return log_error_errno(errno, "failed to open %s: %m", path);
+        r = read_fiemap(fd, &fiemap);
+        if (r == -EOPNOTSUPP)
+                exit(log_tests_skipped("Not supported"));
+        if (r < 0)
+                return log_error_errno(r, "Unable to read extent map for '%s': %m", path);
+        log_info("extent map information for %s:", path);
+        log_info("\t start: %" PRIu64, (uint64_t) fiemap->fm_start);
+        log_info("\t length: %" PRIu64, (uint64_t) fiemap->fm_length);
+        log_info("\t flags: %" PRIu32, fiemap->fm_flags);
+        log_info("\t number of mapped extents: %" PRIu32, fiemap->fm_mapped_extents);
+        log_info("\t extent count: %" PRIu32, fiemap->fm_extent_count);
+        if (fiemap->fm_extent_count > 0)
+                log_info("\t first extent location: %" PRIu64,
+                         (uint64_t) (fiemap->fm_extents[0].fe_physical / page_size()));
+
+        return 0;
+}
+
+TEST_RET(fiemap) {
+        int r = 0;
+
+        assert_se(test_fiemap_one(saved_argv[0]) == 0);
+        for (int i = 1; i < saved_argc; i++) {
+                int k = test_fiemap_one(saved_argv[i]);
+                if (r == 0)
+                        r = k;
+        }
+
+        return r;
+}
+
+static int intro(void) {
+        if (getuid() != 0)
+                log_warning("This program is unlikely to work for unprivileged users");
+
+        return EXIT_SUCCESS;
+}
+
+DEFINE_TEST_MAIN_WITH_INTRO(LOG_DEBUG, intro);