X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/0a5c871bd7a24567ffef4c5580a472715b71d394..ea410ba1d3b06ba6f60305c7d31369da134906dd:/lib/speaker.c diff --git a/lib/speaker.c b/lib/speaker.c deleted file mode 100644 index 65bb87d..0000000 --- a/lib/speaker.c +++ /dev/null @@ -1,108 +0,0 @@ -/* - * This file is part of DisOrder. - * Copyright (C) 2005 Richard Kettlewell - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - * USA - */ - -#include -#include "types.h" - -#include -#include -#include -#include - -#include "speaker.h" -#include "log.h" - -void speaker_send(int fd, const struct speaker_message *sm, int datafd) { - struct msghdr m; - struct iovec iov; - union { - struct cmsghdr cmsg; - char size[CMSG_SPACE(sizeof (int))]; - } u; - int ret; - - memset(&m, 0, sizeof m); - m.msg_iov = &iov; - m.msg_iovlen = 1; - iov.iov_base = (void *)sm; - iov.iov_len = sizeof *sm; - if(datafd != -1) { - m.msg_control = (void *)&u.cmsg; - m.msg_controllen = sizeof u; - memset(&u, 0, sizeof u); - u.cmsg.cmsg_len = CMSG_LEN(sizeof (int)); - u.cmsg.cmsg_level = SOL_SOCKET; - u.cmsg.cmsg_type = SCM_RIGHTS; - *(int *)CMSG_DATA(&u.cmsg) = datafd; - } - do { - ret = sendmsg(fd, &m, 0); - } while(ret < 0 && errno == EINTR); - if(ret < 0) - fatal(errno, "sendmsg"); -} - -int speaker_recv(int fd, struct speaker_message *sm, int *datafd) { - struct msghdr m; - struct iovec iov; - union { - struct cmsghdr cmsg; - char size[CMSG_SPACE(sizeof (int))]; - } u; - int ret; - - memset(&m, 0, sizeof m); - m.msg_iov = &iov; - m.msg_iovlen = 1; - iov.iov_base = (void *)sm; - iov.iov_len = sizeof *sm; - if(datafd) { - m.msg_control = (void *)&u.cmsg; - m.msg_controllen = sizeof u; - memset(&u, 0, sizeof u); - u.cmsg.cmsg_len = CMSG_LEN(sizeof (int)); - u.cmsg.cmsg_level = SOL_SOCKET; - u.cmsg.cmsg_type = SCM_RIGHTS; - *datafd = -1; - } - do { - ret = recvmsg(fd, &m, MSG_DONTWAIT); - } while(ret < 0 && errno == EINTR); - if(ret < 0) { - if(errno != EAGAIN) fatal(errno, "recvmsg"); - return -1; - } - if((size_t)m.msg_controllen >= CMSG_LEN(sizeof (int))) { - if(!datafd) - fatal(0, "got an unexpected file descriptor from recvmsg"); - else - *datafd = *(int *)CMSG_DATA(&u.cmsg); - } - return ret; -} - -/* -Local Variables: -c-basic-offset:2 -comment-column:40 -fill-column:79 -indent-tabs-mode:nil -End: -*/