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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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.
// Date: Mon. Jan 27 23:08:35 CST 2014
#include <sys/types.h> // socket
#include <sys/socket.h> // ^
#include <sys/un.h> // unix domain socket
#include "butil/fd_guard.h" // fd_guard
#include "butil/logging.h"
namespace butil {
int unix_socket_listen(const char* sockname, bool remove_previous_file) {
struct sockaddr_un addr;
addr.sun_family = AF_LOCAL;
snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", sockname);
fd_guard fd(socket(AF_LOCAL, SOCK_STREAM, 0));
if (fd < 0) {
PLOG(ERROR) << "Fail to create unix socket";
return -1;
}
if (remove_previous_file) {
remove(sockname);
}
if (bind(fd, (struct sockaddr*)&addr, sizeof(addr)) != 0) {
PLOG(ERROR) << "Fail to bind sockfd=" << fd << " as unix socket="
<< sockname;
return -1;
}
if (listen(fd, SOMAXCONN) != 0) {
PLOG(ERROR) << "Fail to listen to sockfd=" << fd;
return -1;
}
return fd.release();
}
int unix_socket_listen(const char* sockname) {
return unix_socket_listen(sockname, true);
}
int unix_socket_connect(const char* sockname) {
struct sockaddr_un addr;
addr.sun_family = AF_LOCAL;
snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", sockname);
fd_guard fd(socket(AF_LOCAL, SOCK_STREAM, 0));
if (fd < 0) {
PLOG(ERROR) << "Fail to create unix socket";
return -1;
}
if (connect(fd, (struct sockaddr*)&addr, sizeof(addr)) != 0) {
PLOG(ERROR) << "Fail to connect to unix socket=" << sockname
<< " via sockfd=" << fd;
return -1;
}
return fd.release();
}
} // namespace butil