added a useful tool for dumping a ctdb

(This used to be ctdb commit 671ed94011e21396571a3f4a5191b9a83911c952)

1 files changed, 112 insertions, 0 deletions

diff --git a/ctdb/tools/ctdb_dump.c b/ctdb/tools/ctdb_dump.c
new file mode 100644
index 00000000000..419151c84d8
--- /dev/null
+++ b/ctdb/tools/ctdb_dump.c
@@ -0,0 +1,112 @@
+/* 
+   ctdb status tool
+
+   Copyright (C) Andrew Tridgell  2007
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include "includes.h"
+#include "lib/events/events.h"
+#include "system/filesys.h"
+#include "popt.h"
+#include "cmdline.h"
+#include "../include/ctdb_private.h"
+#include "db_wrap.h"
+
+
+/*
+  show usage message
+ */
+static void usage(void)
+{
+	printf("Usage: ctdb_dump <path>\n");
+	exit(1);
+}
+
+static int traverse_fn(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data, void *p)
+{
+	struct id {
+		dev_t dev;
+		ino_t inode;
+	} *id;
+	struct ctdb_ltdb_header *h = (struct ctdb_ltdb_header *)data.dptr;
+	char *keystr;
+	id = (struct id *)key.dptr;
+	if (key.dsize == sizeof(*id)) {
+		keystr = talloc_asprintf(NULL, "%llu:%llu", 
+					 (uint64_t)id->dev, (uint64_t)id->inode);
+	} else {
+		keystr = hex_encode(NULL, key.dptr, key.dsize);
+	}
+	printf("  rec %s dmaster=%u\n", keystr, h->dmaster);
+	talloc_free(keystr);
+	return 0;
+}
+
+/*
+  main program
+*/
+int main(int argc, const char *argv[])
+{
+	struct poptOption popt_options[] = {
+		POPT_AUTOHELP
+		POPT_CTDB_CMDLINE
+		POPT_TABLEEND
+	};
+	int opt;
+	const char **extra_argv;
+	int i, extra_argc = 0;
+	poptContext pc;
+	struct tdb_wrap *db;
+
+	pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
+
+	while ((opt = poptGetNextOpt(pc)) != -1) {
+		switch (opt) {
+		default:
+			fprintf(stderr, "Invalid option %s: %s\n", 
+				poptBadOption(pc, 0), poptStrerror(opt));
+			exit(1);
+		}
+	}
+
+	/* setup the remaining options for the main program to use */
+	extra_argv = poptGetArgs(pc);
+	if (extra_argv) {
+		extra_argv++;
+		while (extra_argv[extra_argc]) extra_argc++;
+	}
+
+	if (extra_argc < 1) {
+		usage();
+	}
+
+	for (i=0;i<extra_argc;i++) {
+		db = tdb_wrap_open(NULL, extra_argv[i], 0, TDB_DEFAULT, O_RDONLY, 0);
+		if (db == NULL) {
+			printf("Failed to open %s - %s\n", 
+			       extra_argv[i], strerror(errno));
+			exit(1);
+		}
+
+		printf("db %s\n", extra_argv[i]);
+		tdb_traverse(db->tdb, traverse_fn, NULL);
+		
+		talloc_free(db);
+	}
+
+	return 0;
+}