X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=dss.c;h=24d77eb79dbd2ab0862b2b7012b73babde542c93;hb=07ab37b55e1bf4ad7ef65fd25db84fa2a5f50f56;hp=c6c48f51889fc1c5c7e7a1e44c550a262886f8a7;hpb=04a4e5db8eeb1744d668353366bf5e98491550d5;p=dss.git

diff --git a/dss.c b/dss.c
index c6c48f5..24d77eb 100644
--- a/dss.c
+++ b/dss.c
@@ -300,6 +300,7 @@ static int send_signal(int sig)
 		dss_msg("%d\n", (int)pid);
 		return 0;
 	}
+	DSS_NOTICE_LOG(("sending signal %d to pid %d\n", sig, (int)pid));
 	ret = kill(pid, sig);
 	if (ret < 0)
 		return -ERRNO_TO_DSS_ERROR(errno);
@@ -520,7 +521,7 @@ static struct snapshot *find_orphaned_snapshot(struct snapshot_list *sl)
 	struct snapshot *s;
 	int i;
 
-	DSS_DEBUG_LOG(("looking for orphaned snapshots\n"));
+	DSS_DEBUG_LOG(("looking for old incomplete snapshots\n"));
 	FOR_EACH_SNAPSHOT(s, i, sl) {
 		if (snapshot_is_being_created(s))
 			continue;
@@ -734,6 +735,7 @@ static int try_to_free_disk_space(void)
 	if (!low_disk_space)
 		goto out;
 	DSS_WARNING_LOG(("disk space low and nothing obvious to remove\n"));
+	why = "oldest";
 	victim = find_oldest_removable_snapshot(&sl);
 	if (victim)
 		goto remove;
@@ -1058,17 +1060,36 @@ static int handle_sigchld(void)
 	return -E_BUG;
 }
 
+/* also checks if . is a mountpoint, if --mountpoint was given */
 static int change_to_dest_dir(void)
 {
 	int ret;
 	const char *dd = OPT_STRING_VAL(DSS, DEST_DIR);
+	struct stat dot, dotdot;
 
 	DSS_INFO_LOG(("changing cwd to %s\n", 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;
+	if (chdir(dd) < 0) {
+		ret = -ERRNO_TO_DSS_ERROR(errno);
+		DSS_ERROR_LOG(("could not change cwd to %s\n", dd));
+		return ret;
+	}
+	if (!OPT_GIVEN(DSS, MOUNTPOINT))
+		return 0;
+	if (stat(".", &dot) < 0) {
+		ret = -ERRNO_TO_DSS_ERROR(errno);
+		DSS_ERROR_LOG(("could not stat .\n"));
+		return ret;
+	}
+	if (stat("..", &dotdot) < 0) {
+		ret = -ERRNO_TO_DSS_ERROR(errno);
+		DSS_ERROR_LOG(("could not stat ..\n"));
+		return ret;
+	}
+	if (dot.st_dev == dotdot.st_dev && dot.st_ino != dotdot.st_ino) {
+		DSS_ERROR_LOG(("mountpoint check failed for %s\n", dd));
+		return -E_MOUNTPOINT;
+	}
+	return 1;
 }
 
 static int check_config(void)
@@ -1688,19 +1709,30 @@ static int com_ls(void)
 	int i;
 	struct snapshot_list sl;
 	struct snapshot *s;
+	int64_t now = get_current_time();
 
 	dss_get_snapshot_list(&sl);
 	FOR_EACH_SNAPSHOT(s, i, &sl) {
-		int64_t d = 0;
+		int64_t d;
 		if (s->flags & SS_COMPLETE)
 			d = (s->completion_time - s->creation_time) / 60;
-		dss_msg("%u\t%s\t%3" PRId64 ":%02" PRId64 "\n", s->interval, s->name, d/60, d%60);
+		else
+			d = (now - s->creation_time) / 60;
+		dss_msg("%u\t%s\t%3" PRId64 ":%02" PRId64 "\n", s->interval,
+			s->name, d / 60, d % 60);
 	}
 	free_snapshot_list(&sl);
 	return 1;
 }
 EXPORT_CMD_HANDLER(ls);
 
+static int com_configtest(void)
+{
+	printf("Syntax Ok\n");
+	return 0;
+}
+EXPORT_CMD_HANDLER(configtest);
+
 static int setup_signal_handling(void)
 {
 	int ret;
@@ -1742,7 +1774,7 @@ static void show_subcommand_summary(void)
 	for (i = 1; (cmd = lls_cmd(i, dss_suite)); i++) {
 		const char *name = lls_command_name(cmd);
 		const char *purpose = lls_purpose(cmd);
-		printf("%-10s%s\n", name, purpose);
+		printf("%-11s%s\n", name, purpose);
 	}
 	exit(EXIT_SUCCESS);
 }