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Diffstat (limited to 'lib/tdb2/test/run-tdb1-seqnum-wrap.c')
-rw-r--r--lib/tdb2/test/run-tdb1-seqnum-wrap.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/lib/tdb2/test/run-tdb1-seqnum-wrap.c b/lib/tdb2/test/run-tdb1-seqnum-wrap.c
new file mode 100644
index 0000000000..c3eb278e1a
--- /dev/null
+++ b/lib/tdb2/test/run-tdb1-seqnum-wrap.c
@@ -0,0 +1,39 @@
+#include "tdb2-source.h"
+#include <ccan/tap/tap.h>
+#include <stdlib.h>
+#include <err.h>
+#include "logging.h"
+
+int main(int argc, char *argv[])
+{
+ struct tdb_context *tdb;
+ unsigned int i;
+ struct tdb1_header hdr;
+ struct tdb_data key = { (unsigned char *)&hdr, sizeof(hdr) };
+ struct tdb_data data = { (unsigned char *)&hdr, sizeof(hdr) };
+ int flags[] = { TDB_DEFAULT, TDB_NOMMAP,
+ TDB_CONVERT, TDB_NOMMAP|TDB_CONVERT };
+
+ plan_tests(sizeof(flags) / sizeof(flags[0]) * 7);
+ for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+ tdb = tdb_open("run-tdb1-seqnum-wrap.tdb1",
+ flags[i]|TDB_VERSION1|TDB_SEQNUM,
+ O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+ ok1(tdb);
+ if (!tdb)
+ break;
+ ok1(pread(tdb->file->fd, &hdr, sizeof(hdr), 0) == sizeof(hdr));
+ hdr.sequence_number = 0xFFFFFFFF;
+ ok1(pwrite(tdb->file->fd, &hdr, sizeof(hdr), 0) == sizeof(hdr));
+
+ /* Must not be negative: that would mean an error! */
+ ok1(tdb_get_seqnum(tdb) == 0xFFFFFFFF);
+
+ ok1(tdb_store(tdb, key, data, TDB_INSERT) == TDB_SUCCESS);
+ ok1(tdb_get_seqnum(tdb) == 0);
+ tdb_close(tdb);
+ ok1(tap_log_messages == 0);
+ }
+
+ return exit_status();
+}