static void emergency_walk(TDB_DATA key, TDB_DATA dbuf, void *keyname)
{
if (keyname) {
if (key.dsize != strlen(keyname))
return;
if (memcmp(key.dptr, keyname, key.dsize) != 0)
return;
}
traverse_fn(NULL, key, dbuf, NULL);
}
static void emergency_walk(TDB_DATA key, TDB_DATA dbuf, void *keyname)
{
traverse_fn(NULL, key, dbuf, keyname);
}
static int dump_lmdb(const char *fname, struct ldb_dn *dn, bool emergency)
{
int ret;
struct MDB_env *env = NULL;
struct MDB_txn *txn = NULL;
MDB_dbi dbi;
struct MDB_cursor *cursor = NULL;
struct MDB_val key;
struct MDB_val data;
ret = mdb_env_create(&env);
if (ret != 0) {
fprintf(stderr,
"Could not create MDB environment: (%d) %s\n",
ret,
mdb_strerror(ret));
goto close_env;
}
ret = mdb_env_open(env,
fname,
MDB_NOSUBDIR|MDB_NOTLS|MDB_RDONLY,
0600);
if (ret != 0) {
fprintf(stderr,
"Could not open environment for %s: (%d) %s\n",
fname,
ret,
mdb_strerror(ret));
goto close_env;
}
ret = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
if (ret != 0) {
fprintf(stderr,
"Could not start transaction: (%d) %s\n",
ret,
mdb_strerror(ret));
goto close_env;
}
ret = mdb_dbi_open(txn, NULL, 0, &dbi);
if (ret != 0) {
fprintf(stderr,
"Could not open database: (%d) %s\n",
ret,
mdb_strerror(ret));
goto close_txn;
}
ret = mdb_cursor_open(txn, dbi, &cursor);
if (ret != 0) {
fprintf(stderr,
"Could not open cursor: (%d) %s\n",
ret,
mdb_strerror(ret));
goto close_txn;
}
ret = mdb_cursor_get(cursor, &key, &data, MDB_FIRST);
if (ret != 0 && ret != MDB_NOTFOUND) {
fprintf(stderr,
"Could not find first record: (%d) %s\n",
ret,
mdb_strerror(ret));
goto close_cursor;
}
while (ret != MDB_NOTFOUND) {
struct TDB_DATA tkey = {
.dptr = key.mv_data,
.dsize = key.mv_size
};
struct TDB_DATA tdata = {
.dptr = data.mv_data,
.dsize = data.mv_size
};
traverse_fn(NULL, tkey, tdata, dn);
ret = mdb_cursor_get(cursor, &key, &data, MDB_NEXT);
if (ret != 0 && ret != MDB_NOTFOUND) {
fprintf(stderr,
"Could not read next record: (%d) %s\n",
ret,
mdb_strerror(ret));
goto close_cursor;
}
}
ret = 0;
close_cursor:
mdb_cursor_close(cursor);
close_txn:
mdb_txn_commit(txn);
close_env:
mdb_env_close(env);
if (ret != 0) {
return 1;
}
return 0;
}
#else
static int dump_lmdb(const char *fname, struct ldb_dn *dn, bool emergency)
{
/* not built with lmdb support */
return 1;
}
#endif /* #ifdef HAVE_LMDB */
static void usage( void)
{
printf( "Usage: ldbdump [options] <filename>\n\n");
printf( " -h this help message\n");
printf( " -d DN dumps DN only\n");
printf( " -e emergency dump, for corrupt databases\n");
printf( " -i include index and @BASEINFO records in dump\n");
printf( " -c validate contents of the records\n");
}
int main(int argc, char *argv[])
{
bool emergency = false;
int c, rc;
char *fname;
struct ldb_dn *dn = NULL;
ldb = ldb_init(NULL, NULL);
if (ldb == NULL) {
fprintf(stderr, "ldb: ldb_init failed()");
exit(1);
}
rc = ldb_modules_hook(ldb, LDB_MODULE_HOOK_CMDLINE_PRECONNECT);
if (rc != LDB_SUCCESS) {
fprintf(stderr, "ldb: failed to run preconnect hooks (needed to get Samba LDIF handlers): %s\n", ldb_strerror(rc));
exit(1);
}
if (argc < 2) {
printf("Usage: ldbdump <fname>\n");
exit(1);
}
while ((c = getopt( argc, argv, "hd:eic")) != -1) {
switch (c) {
case 'h':
usage();
exit( 0);
case 'd':
dn = ldb_dn_new(ldb, ldb, optarg);
if (!dn) {
fprintf(stderr, "ldb failed to parse %s as a DN\n", optarg);
exit(1);
}
break;
case 'e':
emergency = true;
break;
case 'i':
show_index = true;
break;
case 'c':
validate_contents = true;
break;
default:
usage();
exit( 1);
}
}
fname = argv[optind];
rc = dump_lmdb(fname, dn, emergency);
if (rc != 0) {
rc = dump_tdb(fname, dn, emergency);
if (rc != 0) {
fprintf(stderr, "Failed to open %s\n", fname);
return 1;
}
}
return 0;
}
