1 /* 2 * QEMU I/O channels utility APIs 3 * 4 * Copyright (c) 2016 Red Hat, Inc. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 * 19 */ 20 21 #include "qemu/osdep.h" 22 #include "io/channel-util.h" 23 #include "io/channel-file.h" 24 #include "io/channel-socket.h" 25 26 27 static bool fd_is_socket(int fd) 28 { 29 int optval; 30 socklen_t optlen; 31 optlen = sizeof(optval); 32 return qemu_getsockopt(fd, 33 SOL_SOCKET, 34 SO_TYPE, 35 (char *)&optval, 36 &optlen) == 0; 37 } 38 39 40 QIOChannel *qio_channel_new_fd(int fd, 41 Error **errp) 42 { 43 QIOChannel *ioc; 44 45 if (fd_is_socket(fd)) { 46 ioc = QIO_CHANNEL(qio_channel_socket_new_fd(fd, errp)); 47 } else { 48 ioc = QIO_CHANNEL(qio_channel_file_new_fd(fd)); 49 } 50 return ioc; 51 } 52