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authorSimo Sorce <ssorce@redhat.com>2009-02-25 16:43:57 -0500
committerSimo Sorce <ssorce@redhat.com>2009-02-26 09:13:32 -0500
commit77454c07ba109a3ea6af0da86ba954b28b1fd02f (patch)
tree5e5be00f9b77c42e697617acb9fd695f7c6a0e58 /tdb/tools/tdbbackup.c
parentc9f6d2795fde2f9bf80277d425df2b44bc860226 (diff)
downloadsssd-77454c07ba109a3ea6af0da86ba954b28b1fd02f.tar.gz
sssd-77454c07ba109a3ea6af0da86ba954b28b1fd02f.tar.xz
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Remove our copies of the samba libraries.
Packages are already available in debian unstable and will soon land in Fedora. See BUILD.TXT for details. We still keep libreplace as we still use its configure macros, until we find time to extract only waht we need and have our own macros.
Diffstat (limited to 'tdb/tools/tdbbackup.c')
-rw-r--r--tdb/tools/tdbbackup.c313
1 files changed, 0 insertions, 313 deletions
diff --git a/tdb/tools/tdbbackup.c b/tdb/tools/tdbbackup.c
deleted file mode 100644
index 83c0e1639..000000000
--- a/tdb/tools/tdbbackup.c
+++ /dev/null
@@ -1,313 +0,0 @@
-/*
- Unix SMB/CIFS implementation.
- low level tdb backup and restore utility
- Copyright (C) Andrew Tridgell 2002
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/*
-
- This program is meant for backup/restore of tdb databases. Typical usage would be:
- tdbbackup *.tdb
- when Samba shuts down cleanly, which will make a backup of all the local databases
- to *.bak files. Then on Samba startup you would use:
- tdbbackup -v *.tdb
- and this will check the databases for corruption and if corruption is detected then
- the backup will be restored.
-
- You may also like to do a backup on a regular basis while Samba is
- running, perhaps using cron.
-
- The reason this program is needed is to cope with power failures
- while Samba is running. A power failure could lead to database
- corruption and Samba will then not start correctly.
-
- Note that many of the databases in Samba are transient and thus
- don't need to be backed up, so you can optimise the above a little
- by only running the backup on the critical databases.
-
- */
-
-#include "replace.h"
-#include "system/locale.h"
-#include "system/time.h"
-#include "system/filesys.h"
-#include "system/wait.h"
-#include "tdb.h"
-
-#ifdef HAVE_GETOPT_H
-#include <getopt.h>
-#endif
-
-static int failed;
-
-static char *add_suffix(const char *name, const char *suffix)
-{
- char *ret;
- int len = strlen(name) + strlen(suffix) + 1;
- ret = (char *)malloc(len);
- if (!ret) {
- fprintf(stderr,"Out of memory!\n");
- exit(1);
- }
- snprintf(ret, len, "%s%s", name, suffix);
- return ret;
-}
-
-static int copy_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
-{
- TDB_CONTEXT *tdb_new = (TDB_CONTEXT *)state;
-
- if (tdb_store(tdb_new, key, dbuf, TDB_INSERT) != 0) {
- fprintf(stderr,"Failed to insert into %s\n", tdb_name(tdb_new));
- failed = 1;
- return 1;
- }
- return 0;
-}
-
-
-static int test_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
-{
- return 0;
-}
-
-/*
- carefully backup a tdb, validating the contents and
- only doing the backup if its OK
- this function is also used for restore
-*/
-static int backup_tdb(const char *old_name, const char *new_name, int hash_size)
-{
- TDB_CONTEXT *tdb;
- TDB_CONTEXT *tdb_new;
- char *tmp_name;
- struct stat st;
- int count1, count2;
-
- tmp_name = add_suffix(new_name, ".tmp");
-
- /* stat the old tdb to find its permissions */
- if (stat(old_name, &st) != 0) {
- perror(old_name);
- free(tmp_name);
- return 1;
- }
-
- /* open the old tdb */
- tdb = tdb_open(old_name, 0, 0, O_RDWR, 0);
- if (!tdb) {
- printf("Failed to open %s\n", old_name);
- free(tmp_name);
- return 1;
- }
-
- /* create the new tdb */
- unlink(tmp_name);
- tdb_new = tdb_open(tmp_name,
- hash_size ? hash_size : tdb_hash_size(tdb),
- TDB_DEFAULT, O_RDWR|O_CREAT|O_EXCL,
- st.st_mode & 0777);
- if (!tdb_new) {
- perror(tmp_name);
- free(tmp_name);
- return 1;
- }
-
- if (tdb_transaction_start(tdb) != 0) {
- printf("Failed to start transaction on old tdb\n");
- tdb_close(tdb);
- tdb_close(tdb_new);
- unlink(tmp_name);
- free(tmp_name);
- return 1;
- }
-
- if (tdb_transaction_start(tdb_new) != 0) {
- printf("Failed to start transaction on new tdb\n");
- tdb_close(tdb);
- tdb_close(tdb_new);
- unlink(tmp_name);
- free(tmp_name);
- return 1;
- }
-
- failed = 0;
-
- /* traverse and copy */
- count1 = tdb_traverse(tdb, copy_fn, (void *)tdb_new);
- if (count1 < 0 || failed) {
- fprintf(stderr,"failed to copy %s\n", old_name);
- tdb_close(tdb);
- tdb_close(tdb_new);
- unlink(tmp_name);
- free(tmp_name);
- return 1;
- }
-
- /* close the old tdb */
- tdb_close(tdb);
-
- if (tdb_transaction_commit(tdb_new) != 0) {
- fprintf(stderr, "Failed to commit new tdb\n");
- tdb_close(tdb_new);
- unlink(tmp_name);
- free(tmp_name);
- return 1;
- }
-
- /* close the new tdb and re-open read-only */
- tdb_close(tdb_new);
- tdb_new = tdb_open(tmp_name, 0, TDB_DEFAULT, O_RDONLY, 0);
- if (!tdb_new) {
- fprintf(stderr,"failed to reopen %s\n", tmp_name);
- unlink(tmp_name);
- perror(tmp_name);
- free(tmp_name);
- return 1;
- }
-
- /* traverse the new tdb to confirm */
- count2 = tdb_traverse(tdb_new, test_fn, NULL);
- if (count2 != count1) {
- fprintf(stderr,"failed to copy %s\n", old_name);
- tdb_close(tdb_new);
- unlink(tmp_name);
- free(tmp_name);
- return 1;
- }
-
- /* close the new tdb and rename it to .bak */
- tdb_close(tdb_new);
- if (rename(tmp_name, new_name) != 0) {
- perror(new_name);
- free(tmp_name);
- return 1;
- }
-
- free(tmp_name);
-
- return 0;
-}
-
-/*
- verify a tdb and if it is corrupt then restore from *.bak
-*/
-static int verify_tdb(const char *fname, const char *bak_name)
-{
- TDB_CONTEXT *tdb;
- int count = -1;
-
- /* open the tdb */
- tdb = tdb_open(fname, 0, 0, O_RDONLY, 0);
-
- /* traverse the tdb, then close it */
- if (tdb) {
- count = tdb_traverse(tdb, test_fn, NULL);
- tdb_close(tdb);
- }
-
- /* count is < 0 means an error */
- if (count < 0) {
- printf("restoring %s\n", fname);
- return backup_tdb(bak_name, fname, 0);
- }
-
- printf("%s : %d records\n", fname, count);
-
- return 0;
-}
-
-/*
- see if one file is newer than another
-*/
-static int file_newer(const char *fname1, const char *fname2)
-{
- struct stat st1, st2;
- if (stat(fname1, &st1) != 0) {
- return 0;
- }
- if (stat(fname2, &st2) != 0) {
- return 1;
- }
- return (st1.st_mtime > st2.st_mtime);
-}
-
-static void usage(void)
-{
- printf("Usage: tdbbackup [options] <fname...>\n\n");
- printf(" -h this help message\n");
- printf(" -s suffix set the backup suffix\n");
- printf(" -v verify mode (restore if corrupt)\n");
- printf(" -n hashsize set the new hash size for the backup\n");
-}
-
-
- int main(int argc, char *argv[])
-{
- int i;
- int ret = 0;
- int c;
- int verify = 0;
- int hashsize = 0;
- const char *suffix = ".bak";
-
- while ((c = getopt(argc, argv, "vhs:n:")) != -1) {
- switch (c) {
- case 'h':
- usage();
- exit(0);
- case 'v':
- verify = 1;
- break;
- case 's':
- suffix = optarg;
- break;
- case 'n':
- hashsize = atoi(optarg);
- break;
- }
- }
-
- argc -= optind;
- argv += optind;
-
- if (argc < 1) {
- usage();
- exit(1);
- }
-
- for (i=0; i<argc; i++) {
- const char *fname = argv[i];
- char *bak_name;
-
- bak_name = add_suffix(fname, suffix);
-
- if (verify) {
- if (verify_tdb(fname, bak_name) != 0) {
- ret = 1;
- }
- } else {
- if (file_newer(fname, bak_name) &&
- backup_tdb(fname, bak_name, hashsize) != 0) {
- ret = 1;
- }
- }
-
- free(bak_name);
- }
-
- return ret;
-}