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/*
*
* Copyright 2015 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 <assert.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <string>
#include <vector>
#include "absl/flags/flag.h"
#include "absl/strings/str_cat.h"
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include "src/core/lib/gpr/string.h"
#include "src/core/lib/iomgr/socket_utils_posix.h"
#include "test/core/util/port.h"
#include "test/cpp/util/test_config.h"
ABSL_FLAG(std::vector<std::string>, extra_client_flags, {},
"Extra flags to pass to clients.");
ABSL_FLAG(std::vector<std::string>, extra_server_flags, {},
"Extra flags to pass to server.");
int test_client(const char* root, const char* host, int port) {
int status;
pid_t cli;
cli = fork();
if (cli == 0) {
std::vector<char*> args;
std::string command = absl::StrCat(root, "/interop_client");
args.push_back(const_cast<char*>(command.c_str()));
std::string port_arg = absl::StrCat("--server_port=", port);
args.push_back(const_cast<char*>(port_arg.c_str()));
auto extra_client_flags = absl::GetFlag(FLAGS_extra_client_flags);
for (size_t i = 0; i < extra_client_flags.size(); i++) {
args.push_back(const_cast<char*>(extra_client_flags[i].c_str()));
}
args.push_back(nullptr);
execv(args[0], args.data());
return 1;
}
/* wait for client */
gpr_log(GPR_INFO, "Waiting for client: %s", host);
if (waitpid(cli, &status, 0) == -1) return 2;
if (!WIFEXITED(status)) return 4;
if (WEXITSTATUS(status)) return WEXITSTATUS(status);
return 0;
}
int main(int argc, char** argv) {
grpc::testing::InitTest(&argc, &argv, true);
char* me = argv[0];
char* lslash = strrchr(me, '/');
char root[1024];
int port = grpc_pick_unused_port_or_die();
int status;
pid_t svr;
int ret;
int do_ipv6 = 1;
/* seed rng with pid, so we don't end up with the same random numbers as a
concurrently running test binary */
srand(getpid());
if (!grpc_ipv6_loopback_available()) {
gpr_log(GPR_INFO, "Can't bind to ::1. Skipping IPv6 tests.");
do_ipv6 = 0;
}
/* figure out where we are */
if (lslash) {
memcpy(root, me, lslash - me);
root[lslash - me] = 0;
} else {
strcpy(root, ".");
}
/* start the server */
svr = fork();
if (svr == 0) {
std::vector<char*> args;
std::string command = absl::StrCat(root, "/interop_server");
args.push_back(const_cast<char*>(command.c_str()));
std::string port_arg = absl::StrCat("--port=", port);
args.push_back(const_cast<char*>(port_arg.c_str()));
auto extra_server_flags = absl::GetFlag(FLAGS_extra_server_flags);
for (size_t i = 0; i < extra_server_flags.size(); i++) {
args.push_back(const_cast<char*>(extra_server_flags[i].c_str()));
}
args.push_back(nullptr);
execv(args[0], args.data());
return 1;
}
/* wait a little */
sleep(10);
/* start the clients */
ret = test_client(root, "127.0.0.1", port);
if (ret != 0) return ret;
ret = test_client(root, "::ffff:127.0.0.1", port);
if (ret != 0) return ret;
ret = test_client(root, "localhost", port);
if (ret != 0) return ret;
if (do_ipv6) {
ret = test_client(root, "::1", port);
if (ret != 0) return ret;
}
/* wait for server */
gpr_log(GPR_INFO, "Waiting for server");
kill(svr, SIGINT);
if (waitpid(svr, &status, 0) == -1) return 2;
if (!WIFEXITED(status)) return 4;
if (WEXITSTATUS(status)) return WEXITSTATUS(status);
return 0;
}
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