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s4-dsdb: added dsdb_module_dn_by_guid()

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This finds a DN given a GUID, searching below the current module in
the module stack.

Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Andrew Tridgell 2009-12-16 10:27:32 +11:00
parent 32995e84a2
commit 951592687a
1 changed files with 41 additions and 0 deletions
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41
source4/dsdb/samdb/ldb_modules/util.c
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@ -205,3 +205,44 @@ int dsdb_module_search(struct ldb_module *module,
return ret;
}
/*
find a DN given a GUID. This searches across all partitions
*/
int dsdb_module_dn_by_guid(struct ldb_module *module, TALLOC_CTX *mem_ctx,
const struct GUID *guid, struct ldb_dn **dn)
{
struct ldb_result *res;
const char *attrs[] = { NULL };
char *expression;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
int ret;
expression = talloc_asprintf(tmp_ctx, "objectGUID=%s", GUID_string(tmp_ctx, guid));
if (!expression) {
ldb_module_oom(module);
return LDB_ERR_OPERATIONS_ERROR;
}
ret = dsdb_module_search(module, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
attrs, DSDB_SEARCH_SHOW_DELETED | DSDB_SEARCH_SEARCH_ALL_PARTITIONS,
expression);
if (ret != LDB_SUCCESS) {
talloc_free(tmp_ctx);
return ret;
}
if (ret->count == 0) {
talloc_free(tmp_ctx);
return LDB_ERR_NO_SUCH_OBJECT;
}
if (res->count != 1) {
ldb_asprintf_errstring(ldb_module_get_ctx(module), "More than one object found matching %s\n",
expression);
talloc_free(tmp_ctx);
return LDB_ERR_OPERATIONS_ERROR;
}
*dn = talloc_steal(mem_ctx, res->msgs[0].dn);
talloc_free(tmp_ctx);
return LDB_SUCCESS;
}