| /* |
| * |
| * Copyright 2017 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include "src/core/lib/iomgr/gethostname.h" |
| #include "src/core/lib/iomgr/port.h" |
| |
| #ifdef GRPC_POSIX_SYSCONF |
| |
| #include <unistd.h> |
| |
| #include <grpc/support/alloc.h> |
| |
| char* grpc_gethostname() { |
| size_t host_name_max = (size_t)sysconf(_SC_HOST_NAME_MAX); |
| char* hostname = (char*)gpr_malloc(host_name_max); |
| if (gethostname(hostname, host_name_max) != 0) { |
| gpr_free(hostname); |
| return nullptr; |
| } |
| return hostname; |
| } |
| |
| #endif // GRPC_POSIX_SYSCONF |