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s4-dsdb: Improve memory handling in dsdb_schema_from_ldb_results() by adding a tmp_ctx

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This commit is contained in:
Andrew Bartlett 2012-08-14 16:05:53 +10:00
parent 1f7477349f
commit 0f2a87b547
1 changed files with 14 additions and 2 deletions
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16
source4/dsdb/schema/schema_init.c
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@ -843,9 +843,16 @@ int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
struct loadparm_context *lp_ctx = NULL;
int ret;
schema = dsdb_new_schema(mem_ctx);
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
if (!tmp_ctx) {
dsdb_oom(error_string, mem_ctx);
return ldb_operr(ldb);
}
schema = dsdb_new_schema(tmp_ctx);
if (!schema) {
dsdb_oom(error_string, mem_ctx);
talloc_free(tmp_ctx);
return ldb_operr(ldb);
}
@ -856,6 +863,7 @@ int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
*error_string = talloc_asprintf(mem_ctx,
"schema_fsmo_init: no prefixMap attribute found");
DEBUG(0,(__location__ ": %s\n", *error_string));
talloc_free(tmp_ctx);
return LDB_ERR_CONSTRAINT_VIOLATION;
}
info_val = ldb_msg_find_ldb_val(schema_res->msgs[0], "schemaInfo");
@ -866,6 +874,7 @@ int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
"schema_fsmo_init: dsdb_schema_info_blob_new() failed - %s",
win_errstr(status));
DEBUG(0,(__location__ ": %s\n", *error_string));
talloc_free(tmp_ctx);
return ldb_operr(ldb);
}
info_val = &info_val_default;
@ -877,11 +886,13 @@ int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
"schema_fsmo_init: failed to load oid mappings: %s",
win_errstr(status));
DEBUG(0,(__location__ ": %s\n", *error_string));
talloc_free(tmp_ctx);
return LDB_ERR_CONSTRAINT_VIOLATION;
}
ret = dsdb_load_ldb_results_into_schema(mem_ctx, ldb, schema, attrs_class_res, error_string);
if (ret != LDB_SUCCESS) {
talloc_free(tmp_ctx);
return ret;
}
@ -907,6 +918,7 @@ int dsdb_schema_from_ldb_results(TALLOC_CTX *mem_ctx, struct ldb_context *ldb,
(schema->fsmo.we_are_master?"yes":"no"),
(schema->fsmo.update_allowed?"yes":"no")));
*schema_out = schema;
*schema_out = talloc_steal(mem_ctx, schema);
talloc_free(tmp_ctx);
return LDB_SUCCESS;
}