3 * Copyright 2016 gRPC authors.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
19 #include <grpc/support/port_platform.h>
21 #include "src/core/lib/security/credentials/google_default/google_default_credentials.h"
23 #include <grpc/support/alloc.h>
24 #include <grpc/support/log.h>
25 #include <grpc/support/string_util.h>
27 #include "src/core/lib/gpr/env.h"
28 #include "src/core/lib/gpr/string.h"
30 char* grpc_get_well_known_google_credentials_file_path_impl(void) {
31 char* result = nullptr;
32 char* base = gpr_getenv(GRPC_GOOGLE_CREDENTIALS_PATH_ENV_VAR);
33 if (base == nullptr) {
34 gpr_log(GPR_ERROR, "Could not get " GRPC_GOOGLE_CREDENTIALS_PATH_ENV_VAR
35 " environment variable.");
38 gpr_asprintf(&result, "%s/%s", base, GRPC_GOOGLE_CREDENTIALS_PATH_SUFFIX);