X-Git-Url: http://git.tuebingen.mpg.de/?p=dss.git;a=blobdiff_plain;f=dss.c;h=3e626ab0113b1890277da115ea6c735dbdb690d7;hp=8547f24a55e6c218d76fe002f7c76baa6c81e958;hb=3e8d431fb78e95c0d595b6e7e37ff248c0fa4edd;hpb=25b4f1983a3804353f5fc879f93ecde978a90aaf

diff --git a/dss.c b/dss.c
index 8547f24..3e626ab 100644
--- a/dss.c
+++ b/dss.c
@@ -1055,9 +1055,15 @@ static int handle_sigchld(void)
 
 static int change_to_dest_dir(void)
 {
+	int ret;
 	const char *dd = OPT_STRING_VAL(DSS, DEST_DIR);
+
 	DSS_INFO_LOG(("changing cwd to %s\n", dd));
-	return dss_chdir(dd);
+	if (chdir(dd) >= 0)
+		return 1;
+	ret = -ERRNO_TO_DSS_ERROR(errno);
+	DSS_ERROR_LOG(("could not change cwd to %s\n", dd));
+	return ret;
 }
 
 static int check_config(const struct lls_command *cmd)
@@ -1341,6 +1347,7 @@ static void create_rsync_argv(char ***argv, int64_t *num)
 	char *logname;
 	int i = 0, j, N = OPT_GIVEN(DSS, RSYNC_OPTION);
 	struct snapshot_list sl;
+	static bool seeded;
 
 	dss_get_snapshot_list(&sl);
 	assert(!name_of_reference_snapshot);
@@ -1351,6 +1358,14 @@ static void create_rsync_argv(char ***argv, int64_t *num)
 	(*argv)[i++] = dss_strdup("rsync");
 	(*argv)[i++] = dss_strdup("-a");
 	(*argv)[i++] = dss_strdup("--delete");
+	if (!seeded) {
+		srandom((unsigned)time(NULL)); /* no need to be fancy here */
+		seeded = true;
+	}
+	if (1000 * (random() / (RAND_MAX + 1.0)) < OPT_UINT32_VAL(DSS, CHECKSUM)) {
+		DSS_NOTICE_LOG(("adding --checksum to rsync options\n"));
+		(*argv)[i++] = dss_strdup("--checksum");
+	}
 	for (j = 0; j < N; j++)
 		(*argv)[i++] = dss_strdup(lls_string_val(j,
 			OPT_RESULT(DSS, RSYNC_OPTION)));