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s3: let netsamlogon_cache_init() use tdb_check()

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If the check fails we try to unlink the old file and
start with an empty cache.

metze
This commit is contained in:
Stefan Metzmacher
2009-12-04 16:34:08 +01:00
parent 6f6608c2aa
commit 8f19c08072
1 changed files with 42 additions and 4 deletions
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46
source3/libsmb/samlogon_cache.c
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@ -34,12 +34,50 @@ static TDB_CONTEXT *netsamlogon_tdb = NULL;
bool netsamlogon_cache_init(void)
{
if (!netsamlogon_tdb) {
netsamlogon_tdb = tdb_open_log(cache_path(NETSAMLOGON_TDB), 0,
TDB_DEFAULT, O_RDWR | O_CREAT, 0600);
bool first_try = true;
const char *path = NULL;
int ret;
struct tdb_context *tdb;
if (netsamlogon_tdb) {
return true;
}
return (netsamlogon_tdb != NULL);
path = cache_path(NETSAMLOGON_TDB);
again:
tdb = tdb_open_log(path, 0, TDB_DEFAULT,
O_RDWR | O_CREAT, 0600);
if (tdb == NULL) {
DEBUG(0,("tdb_open_log('%s') - failed\n", path));
goto clear;
}
ret = tdb_check(tdb, NULL, NULL);
if (ret != 0) {
tdb_close(tdb);
DEBUG(0,("tdb_check('%s') - failed\n", path));
goto clear;
}
netsamlogon_tdb = tdb;
return true;
clear:
if (!first_try) {
return false;
}
first_try = false;
DEBUG(0,("retry after CLEAR_IF_FIRST for '%s'\n", path));
tdb = tdb_open_log(path, 0, TDB_CLEAR_IF_FIRST,
O_RDWR | O_CREAT, 0600);
if (tdb) {
tdb_close(tdb);
goto again;
}
DEBUG(0,("tdb_open_log(%s) with CLEAR_IF_FIRST - failed\n", path));
return false;
}