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/*
*
* 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>
#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;
}
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