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author | Stefan Metzmacher <metze@samba.org> | 2007-04-17 16:53:06 +0000 |
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committer | Gerald (Jerry) Carter <jerry@samba.org> | 2007-10-10 12:19:26 -0500 |
commit | 97079ab953a9021d67b3ec775d0321d1d4bd0e73 (patch) | |
tree | 0e2307443d46494606f08a01d0bdf06eaaae3876 /source3/lib/tdb/common | |
parent | f1a0e7dc75a917c719fd8417859a31b7d9722b1d (diff) | |
download | samba-97079ab953a9021d67b3ec775d0321d1d4bd0e73.tar.gz samba-97079ab953a9021d67b3ec775d0321d1d4bd0e73.tar.bz2 samba-97079ab953a9021d67b3ec775d0321d1d4bd0e73.zip |
r22315: move tdbback.c content into tdbbackup.c
and make the functions static.
also use libreplace headers in tdbbackup.c
metze
(This used to be commit 1ca12b1c9e7e8267fa13a40ebeb2bdcd199237de)
Diffstat (limited to 'source3/lib/tdb/common')
-rw-r--r-- | source3/lib/tdb/common/tdbback.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/source3/lib/tdb/common/tdbback.c b/source3/lib/tdb/common/tdbback.c deleted file mode 100644 index 28de85c29f..0000000000 --- a/source3/lib/tdb/common/tdbback.c +++ /dev/null @@ -1,227 +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 2 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, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#ifdef STANDALONE -#if HAVE_CONFIG_H -#include <config.h> -#endif - -#include <errno.h> -#include <stdlib.h> -#include <stdio.h> -#include <fcntl.h> -#include <unistd.h> -#include <string.h> -#include <fcntl.h> -#include <time.h> -#include <sys/mman.h> - -#include <sys/stat.h> -#include <sys/time.h> -#include <ctype.h> -#include <signal.h> - -#else -#include "includes.h" - -#ifdef malloc -#undef malloc -#endif - -#ifdef realloc -#undef realloc -#endif - -#ifdef calloc -#undef calloc -#endif - -#endif - -#include "tdb.h" - -static int failed; - -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)); - 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 -*/ -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; - } - - /* lock the old tdb */ - if (tdb_lockall(tdb) != 0) { - fprintf(stderr,"Failed to lock %s\n", old_name); - 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); - - /* 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, 0); - if (count2 != count1) { - fprintf(stderr,"failed to copy %s\n", old_name); - tdb_close(tdb_new); - unlink(tmp_name); - free(tmp_name); - return 1; - } - - /* make sure the new tdb has reached stable storage */ - fsync(tdb_fd(tdb_new)); - - /* close the new tdb and rename it to .bak */ - tdb_close(tdb_new); - unlink(new_name); - 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 -*/ -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; -} |