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/*
* Copyright (C) 2010 Jens Georg <mail@jensge.org>
*
* Author: Jens Georg <mail@jensge.org>
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
*/
#include <config.h>
#ifdef __APPLE__
#define __APPLE_USE_RFC_3542
#endif
#include "gssdp-error.h"
#include "gssdp-socket-functions.h"
#include "gssdp-pktinfo-message.h"
#include <errno.h>
#include <string.h>
#include <glib.h>
#ifdef G_OS_WIN32
#include <winsock2.h>
#include <ws2tcpip.h>
typedef int socklen_t;
#else
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#endif
#include "gssdp-pktinfo6-message.h"
static char*
gssdp_socket_error_message (int error) {
#ifdef G_OS_WIN32
return g_win32_error_message (error);
#else
return g_strdup (g_strerror (error));
#endif
}
static int
gssdp_socket_errno (void) {
#ifdef G_OS_WIN32
return WSAGetLastError ();
#else
return errno;
#endif
}
static gboolean
gssdp_socket_option_set (GSocket *socket,
int level,
int option,
const void *optval,
socklen_t optlen,
GError **error) {
int res;
res = setsockopt (g_socket_get_fd (socket),
level,
option,
optval,
optlen);
if (res == -1) {
char *message;
int error_code;
error_code = gssdp_socket_errno ();
message = gssdp_socket_error_message (error_code);
g_set_error_literal (error,
GSSDP_ERROR,
GSSDP_ERROR_FAILED,
message);
g_free (message);
}
return res != -1;
}
gboolean
gssdp_socket_mcast_interface_set (GSocket *socket,
GInetAddress *iface_address,
gint index,
GError **error) {
const guint8 *address;
gsize native_size;
if (g_inet_address_get_family (iface_address) == G_SOCKET_FAMILY_IPV6) {
return gssdp_socket_option_set (socket,
IPPROTO_IPV6,
IPV6_MULTICAST_IF,
(char *)&index,
sizeof (index),
error);
} else {
address = g_inet_address_to_bytes (iface_address);
native_size = g_inet_address_get_native_size (iface_address);
return gssdp_socket_option_set (socket,
IPPROTO_IP,
IP_MULTICAST_IF,
(char *) address,
native_size,
error);
}
}
#define __GSSDP_UNUSED(x) (void)(x)
gboolean
gssdp_socket_reuse_address (GSocket *socket,
gboolean enable,
GError **error) {
#if defined(G_OS_WIN32) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
return gssdp_socket_option_set (socket,
SOL_SOCKET,
#if defined(__OpenBSD__) || defined (__NetBSD__) || defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
SO_REUSEPORT,
#else
SO_REUSEADDR,
#endif
(char *) &enable,
sizeof (enable),
error);
#else
__GSSDP_UNUSED(socket);
__GSSDP_UNUSED(enable);
__GSSDP_UNUSED(error);
#endif
return TRUE;
}
gboolean
gssdp_socket_enable_info (GSocket *socket,
GSocketFamily family,
gboolean enable,
GError **error)
{
#ifdef HAVE_PKTINFO
/* Register the type so g_socket_control_message_deserialize() will
* find it */
g_type_ensure (GSSDP_TYPE_PKTINFO_MESSAGE);
g_type_ensure (GSSDP_TYPE_PKTINFO6_MESSAGE);
if (family == G_SOCKET_FAMILY_IPV6) {
return gssdp_socket_option_set (socket,
IPPROTO_IPV6,
IPV6_RECVPKTINFO,
(char *)&enable,
sizeof (enable),
error);
} else if (family == G_SOCKET_FAMILY_IPV4) {
return gssdp_socket_option_set (socket,
IPPROTO_IP,
IP_PKTINFO,
(char *) &enable,
sizeof (enable),
error);
} else {
g_warning ("Invalid socket family: %d", family);
return FALSE;
}
#else
__GSSDP_UNUSED (socket);
__GSSDP_UNUSED (enable);
__GSSDP_UNUSED (error);
return TRUE;
#endif
}
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