// Copyright (c) 2014 Baidu, Inc. // // 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. // Author: Jiang,Rujie(jiangrujie@baidu.com) // 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