sandboxed-api/sandboxed_api/sandbox2/testcases/hostname.cc

45 lines
1.2 KiB
C++
Raw Normal View History

// Copyright 2019 Google LLC. All Rights Reserved.
//
// 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.
// A binary to test network namespace hostname.
// Usage: ./hostname <expected hostname>
// Success only if the hostname is as expected.
#include <unistd.h>
#include <cerrno>
#include <cstdio>
#include <cstdlib>
#include <cstring>
int main(int argc, char** argv) {
if (argc < 2) {
printf("argc < 2\n");
return EXIT_FAILURE;
}
char hostname[1024];
if (gethostname(hostname, sizeof(hostname)) == -1) {
printf("gethostname: error %d\n", errno);
return EXIT_FAILURE;
}
if (strcmp(hostname, argv[1]) != 0) {
printf("gethostname: got %s, want %s\n", hostname, argv[1]);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}