| /* |
| * |
| * oFono - Open Source Telephony |
| * |
| * Copyright (C) 2009-2010 Nokia Corporation and/or its subsidiary(-ies). |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| #include <sys/ioctl.h> |
| #include <unistd.h> |
| #include <net/if.h> |
| #include <fcntl.h> |
| #include <glib.h> |
| |
| #pragma GCC diagnostic ignored "-Wpragmas" |
| #pragma GCC diagnostic ignored "-Waddress-of-packed-member" |
| |
| #include "phonet.h" |
| #include "socket.h" |
| |
| GIOChannel *g_isi_phonet_new(unsigned ifindex) |
| { |
| GIOChannel *channel; |
| struct sockaddr_pn addr = { |
| .spn_family = AF_PHONET, |
| }; |
| char buf[IF_NAMESIZE]; |
| |
| int fd = socket(PF_PHONET, SOCK_DGRAM, 0); |
| if (fd == -1) |
| return NULL; |
| |
| fcntl(fd, F_SETFD, FD_CLOEXEC); |
| /* Use blocking mode on purpose. */ |
| |
| if (ifindex == 0) |
| g_warning("Unspecified modem interface index"); |
| else if (if_indextoname(ifindex, buf) == NULL || |
| setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, buf, IF_NAMESIZE)) |
| goto error; |
| |
| if (bind(fd, (void *)&addr, sizeof(addr))) |
| goto error; |
| |
| channel = g_io_channel_unix_new(fd); |
| g_io_channel_set_close_on_unref(channel, TRUE); |
| g_io_channel_set_encoding(channel, NULL, NULL); |
| g_io_channel_set_buffered(channel, FALSE); |
| return channel; |
| |
| error: |
| close(fd); |
| return NULL; |
| } |
| |
| size_t g_isi_phonet_peek_length(GIOChannel *channel) |
| { |
| int len; |
| int fd = g_io_channel_unix_get_fd(channel); |
| |
| return ioctl(fd, FIONREAD, &len) ? 0 : len; |
| } |
| |
| ssize_t g_isi_phonet_read(GIOChannel *channel, void *restrict buf, size_t len, |
| struct sockaddr_pn *addr) |
| { |
| socklen_t addrlen = sizeof(struct sockaddr_pn); |
| ssize_t ret; |
| |
| ret = recvfrom(g_io_channel_unix_get_fd(channel), buf, len, |
| MSG_DONTWAIT, (void *)addr, &addrlen); |
| if (ret == -1) |
| return -1; |
| |
| return ret; |
| } |