| /* |
| * Copyright 2017 Hans Leidekker for CodeWeavers |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include <stdarg.h> |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "webservices.h" |
| |
| #include "wine/debug.h" |
| #include "wine/list.h" |
| #include "wine/unicode.h" |
| #include "webservices_private.h" |
| #include "sock.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(webservices); |
| |
| static BOOL winsock_loaded; |
| |
| static BOOL WINAPI winsock_startup( INIT_ONCE *once, void *param, void **ctx ) |
| { |
| int ret; |
| WSADATA data; |
| if (!(ret = WSAStartup( MAKEWORD(1,1), &data ))) winsock_loaded = TRUE; |
| else ERR( "WSAStartup failed: %d\n", ret ); |
| return TRUE; |
| } |
| |
| void winsock_init(void) |
| { |
| static INIT_ONCE once = INIT_ONCE_STATIC_INIT; |
| InitOnceExecuteOnce( &once, winsock_startup, NULL, NULL ); |
| } |
| |
| static const struct prop_desc listener_props[] = |
| { |
| { sizeof(ULONG), FALSE }, /* WS_LISTENER_PROPERTY_LISTEN_BACKLOG */ |
| { sizeof(WS_IP_VERSION), FALSE }, /* WS_LISTENER_PROPERTY_IP_VERSION */ |
| { sizeof(WS_LISTENER_STATE), TRUE }, /* WS_LISTENER_PROPERTY_STATE */ |
| { sizeof(WS_CALLBACK_MODEL), FALSE }, /* WS_LISTENER_PROPERTY_ASYNC_CALLBACK_MODEL */ |
| { sizeof(WS_CHANNEL_TYPE), TRUE }, /* WS_LISTENER_PROPERTY_CHANNEL_TYPE */ |
| { sizeof(WS_CHANNEL_BINDING), TRUE }, /* WS_LISTENER_PROPERTY_CHANNEL_BINDING */ |
| { sizeof(ULONG), FALSE }, /* WS_LISTENER_PROPERTY_CONNECT_TIMEOUT */ |
| { sizeof(BOOL), FALSE }, /* WS_LISTENER_PROPERTY_IS_MULTICAST */ |
| { 0, FALSE }, /* WS_LISTENER_PROPERTY_MULTICAST_INTERFACES */ |
| { sizeof(BOOL), FALSE }, /* WS_LISTENER_PROPERTY_MULTICAST_LOOPBACK */ |
| { sizeof(ULONG), FALSE }, /* WS_LISTENER_PROPERTY_CLOSE_TIMEOUT */ |
| { sizeof(ULONG), FALSE }, /* WS_LISTENER_PROPERTY_TO_HEADER_MATCHING_OPTIONS */ |
| { sizeof(ULONG), FALSE }, /* WS_LISTENER_PROPERTY_TRANSPORT_URL_MATCHING_OPTIONS */ |
| { sizeof(WS_CUSTOM_LISTENER_CALLBACKS), FALSE }, /* WS_LISTENER_PROPERTY_CUSTOM_LISTENER_CALLBACKS */ |
| { 0, FALSE }, /* WS_LISTENER_PROPERTY_CUSTOM_LISTENER_PARAMETERS */ |
| { sizeof(void *), TRUE }, /* WS_LISTENER_PROPERTY_CUSTOM_LISTENER_INSTANCE */ |
| { sizeof(WS_DISALLOWED_USER_AGENT_SUBSTRINGS), FALSE } /* WS_LISTENER_PROPERTY_DISALLOWED_USER_AGENT */ |
| }; |
| |
| struct listener |
| { |
| ULONG magic; |
| CRITICAL_SECTION cs; |
| WS_CHANNEL_TYPE type; |
| WS_CHANNEL_BINDING binding; |
| WS_LISTENER_STATE state; |
| HANDLE wait; |
| HANDLE cancel; |
| WS_CHANNEL *channel; |
| union |
| { |
| struct |
| { |
| SOCKET socket; |
| } tcp; |
| struct |
| { |
| SOCKET socket; |
| } udp; |
| } u; |
| ULONG prop_count; |
| struct prop prop[sizeof(listener_props)/sizeof(listener_props[0])]; |
| }; |
| |
| #define LISTENER_MAGIC (('L' << 24) | ('I' << 16) | ('S' << 8) | 'T') |
| |
| static struct listener *alloc_listener(void) |
| { |
| static const ULONG count = sizeof(listener_props)/sizeof(listener_props[0]); |
| struct listener *ret; |
| ULONG size = sizeof(*ret) + prop_size( listener_props, count ); |
| |
| if (!(ret = heap_alloc_zero( size ))) return NULL; |
| |
| ret->magic = LISTENER_MAGIC; |
| if (!(ret->wait = CreateEventW( NULL, FALSE, FALSE, NULL ))) |
| { |
| heap_free( ret ); |
| return NULL; |
| } |
| if (!(ret->cancel = CreateEventW( NULL, FALSE, FALSE, NULL ))) |
| { |
| CloseHandle( ret->wait ); |
| heap_free( ret ); |
| return NULL; |
| } |
| InitializeCriticalSection( &ret->cs ); |
| ret->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": listener.cs"); |
| |
| prop_init( listener_props, count, ret->prop, &ret[1] ); |
| ret->prop_count = count; |
| return ret; |
| } |
| |
| static void reset_listener( struct listener *listener ) |
| { |
| listener->state = WS_LISTENER_STATE_CREATED; |
| SetEvent( listener->cancel ); |
| listener->channel = NULL; |
| |
| switch (listener->binding) |
| { |
| case WS_TCP_CHANNEL_BINDING: |
| closesocket( listener->u.tcp.socket ); |
| listener->u.tcp.socket = -1; |
| break; |
| |
| case WS_UDP_CHANNEL_BINDING: |
| closesocket( listener->u.udp.socket ); |
| listener->u.udp.socket = -1; |
| break; |
| |
| default: break; |
| } |
| } |
| |
| static void free_listener( struct listener *listener ) |
| { |
| reset_listener( listener ); |
| |
| CloseHandle( listener->wait ); |
| CloseHandle( listener->cancel ); |
| |
| listener->cs.DebugInfo->Spare[0] = 0; |
| DeleteCriticalSection( &listener->cs ); |
| heap_free( listener ); |
| } |
| |
| static HRESULT create_listener( WS_CHANNEL_TYPE type, WS_CHANNEL_BINDING binding, |
| const WS_LISTENER_PROPERTY *properties, ULONG count, struct listener **ret ) |
| { |
| struct listener *listener; |
| HRESULT hr; |
| ULONG i; |
| |
| if (!(listener = alloc_listener())) return E_OUTOFMEMORY; |
| |
| for (i = 0; i < count; i++) |
| { |
| hr = prop_set( listener->prop, listener->prop_count, properties[i].id, properties[i].value, |
| properties[i].valueSize ); |
| if (hr != S_OK) |
| { |
| free_listener( listener ); |
| return hr; |
| } |
| } |
| |
| listener->type = type; |
| listener->binding = binding; |
| |
| switch (listener->binding) |
| { |
| case WS_TCP_CHANNEL_BINDING: |
| listener->u.tcp.socket = -1; |
| break; |
| |
| case WS_UDP_CHANNEL_BINDING: |
| listener->u.udp.socket = -1; |
| break; |
| |
| default: break; |
| } |
| |
| *ret = listener; |
| return S_OK; |
| } |
| |
| /************************************************************************** |
| * WsCreateListener [webservices.@] |
| */ |
| HRESULT WINAPI WsCreateListener( WS_CHANNEL_TYPE type, WS_CHANNEL_BINDING binding, |
| const WS_LISTENER_PROPERTY *properties, ULONG count, |
| const WS_SECURITY_DESCRIPTION *desc, WS_LISTENER **handle, |
| WS_ERROR *error ) |
| { |
| struct listener *listener; |
| HRESULT hr; |
| |
| TRACE( "%u %u %p %u %p %p %p\n", type, binding, properties, count, desc, handle, error ); |
| if (error) FIXME( "ignoring error parameter\n" ); |
| if (desc) FIXME( "ignoring security description\n" ); |
| |
| if (!handle) return E_INVALIDARG; |
| |
| if (type != WS_CHANNEL_TYPE_DUPLEX_SESSION && type != WS_CHANNEL_TYPE_DUPLEX) |
| { |
| FIXME( "channel type %u not implemented\n", type ); |
| return E_NOTIMPL; |
| } |
| if (binding != WS_TCP_CHANNEL_BINDING && binding != WS_UDP_CHANNEL_BINDING) |
| { |
| FIXME( "channel binding %u not implemented\n", binding ); |
| return E_NOTIMPL; |
| } |
| |
| if ((hr = create_listener( type, binding, properties, count, &listener )) != S_OK) return hr; |
| |
| TRACE( "created %p\n", listener ); |
| *handle = (WS_LISTENER *)listener; |
| return S_OK; |
| } |
| |
| /************************************************************************** |
| * WsFreeListener [webservices.@] |
| */ |
| void WINAPI WsFreeListener( WS_LISTENER *handle ) |
| { |
| struct listener *listener = (struct listener *)handle; |
| |
| TRACE( "%p\n", handle ); |
| |
| if (!listener) return; |
| |
| EnterCriticalSection( &listener->cs ); |
| |
| if (listener->magic != LISTENER_MAGIC) |
| { |
| LeaveCriticalSection( &listener->cs ); |
| return; |
| } |
| |
| listener->magic = 0; |
| |
| LeaveCriticalSection( &listener->cs ); |
| free_listener( listener ); |
| } |
| |
| HRESULT resolve_hostname( const WCHAR *host, USHORT port, struct sockaddr *addr, int *addr_len, int flags ) |
| { |
| static const WCHAR fmtW[] = {'%','u',0}; |
| WCHAR service[6]; |
| ADDRINFOW hints, *res, *info; |
| HRESULT hr = WS_E_ADDRESS_NOT_AVAILABLE; |
| |
| memset( &hints, 0, sizeof(hints) ); |
| hints.ai_flags = flags; |
| hints.ai_family = AF_INET; |
| |
| *addr_len = 0; |
| sprintfW( service, fmtW, port ); |
| if (GetAddrInfoW( host, service, &hints, &res )) return HRESULT_FROM_WIN32( WSAGetLastError() ); |
| |
| info = res; |
| while (info && info->ai_family != AF_INET) info = info->ai_next; |
| if (info) |
| { |
| memcpy( addr, info->ai_addr, info->ai_addrlen ); |
| *addr_len = info->ai_addrlen; |
| hr = S_OK; |
| } |
| |
| FreeAddrInfoW( res ); |
| return hr; |
| } |
| |
| HRESULT parse_url( const WS_STRING *str, WS_URL_SCHEME_TYPE *scheme, WCHAR **host, USHORT *port ) |
| { |
| WS_HEAP *heap; |
| WS_NETTCP_URL *url; |
| HRESULT hr; |
| |
| if ((hr = WsCreateHeap( 1 << 8, 0, NULL, 0, &heap, NULL )) != S_OK) return hr; |
| if ((hr = WsDecodeUrl( str, 0, heap, (WS_URL **)&url, NULL )) != S_OK) |
| { |
| WsFreeHeap( heap ); |
| return hr; |
| } |
| |
| if (url->host.length == 1 && (url->host.chars[0] == '+' || url->host.chars[0] == '*')) *host = NULL; |
| else |
| { |
| if (!(*host = heap_alloc( (url->host.length + 1) * sizeof(WCHAR) ))) |
| { |
| WsFreeHeap( heap ); |
| return E_OUTOFMEMORY; |
| } |
| memcpy( *host, url->host.chars, url->host.length * sizeof(WCHAR) ); |
| (*host)[url->host.length] = 0; |
| } |
| *scheme = url->url.scheme; |
| *port = url->port; |
| |
| WsFreeHeap( heap ); |
| return hr; |
| } |
| |
| static HRESULT open_listener_tcp( struct listener *listener, const WS_STRING *url ) |
| { |
| struct sockaddr_storage storage; |
| struct sockaddr *addr = (struct sockaddr *)&storage; |
| int addr_len, on = 1; |
| WS_URL_SCHEME_TYPE scheme; |
| WCHAR *host; |
| USHORT port; |
| HRESULT hr; |
| |
| if ((hr = parse_url( url, &scheme, &host, &port )) != S_OK) return hr; |
| if (scheme != WS_URL_NETTCP_SCHEME_TYPE) |
| { |
| heap_free( host ); |
| return WS_E_INVALID_ENDPOINT_URL; |
| } |
| |
| winsock_init(); |
| |
| hr = resolve_hostname( host, port, addr, &addr_len, AI_PASSIVE ); |
| heap_free( host ); |
| if (hr != S_OK) return hr; |
| |
| if ((listener->u.tcp.socket = socket( addr->sa_family, SOCK_STREAM, 0 )) == -1) |
| return HRESULT_FROM_WIN32( WSAGetLastError() ); |
| |
| if (setsockopt( listener->u.tcp.socket, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on) ) < 0) |
| { |
| closesocket( listener->u.tcp.socket ); |
| listener->u.tcp.socket = -1; |
| return HRESULT_FROM_WIN32( WSAGetLastError() ); |
| } |
| |
| if (bind( listener->u.tcp.socket, addr, addr_len ) < 0) |
| { |
| closesocket( listener->u.tcp.socket ); |
| listener->u.tcp.socket = -1; |
| return HRESULT_FROM_WIN32( WSAGetLastError() ); |
| } |
| |
| if (listen( listener->u.tcp.socket, 0 ) < 0) |
| { |
| closesocket( listener->u.tcp.socket ); |
| listener->u.tcp.socket = -1; |
| return HRESULT_FROM_WIN32( WSAGetLastError() ); |
| } |
| |
| listener->state = WS_LISTENER_STATE_OPEN; |
| return S_OK; |
| } |
| |
| static HRESULT open_listener_udp( struct listener *listener, const WS_STRING *url ) |
| { |
| struct sockaddr_storage storage; |
| struct sockaddr *addr = (struct sockaddr *)&storage; |
| int addr_len; |
| WS_URL_SCHEME_TYPE scheme; |
| WCHAR *host; |
| USHORT port; |
| HRESULT hr; |
| |
| if ((hr = parse_url( url, &scheme, &host, &port )) != S_OK) return hr; |
| if (scheme != WS_URL_SOAPUDP_SCHEME_TYPE) |
| { |
| heap_free( host ); |
| return WS_E_INVALID_ENDPOINT_URL; |
| } |
| |
| winsock_init(); |
| |
| hr = resolve_hostname( host, port, addr, &addr_len, AI_PASSIVE ); |
| heap_free( host ); |
| if (hr != S_OK) return hr; |
| |
| if ((listener->u.udp.socket = socket( addr->sa_family, SOCK_DGRAM, 0 )) == -1) |
| return HRESULT_FROM_WIN32( WSAGetLastError() ); |
| |
| if (bind( listener->u.udp.socket, addr, addr_len ) < 0) |
| { |
| closesocket( listener->u.udp.socket ); |
| listener->u.udp.socket = -1; |
| return HRESULT_FROM_WIN32( WSAGetLastError() ); |
| } |
| |
| listener->state = WS_LISTENER_STATE_OPEN; |
| return S_OK; |
| } |
| |
| static HRESULT open_listener( struct listener *listener, const WS_STRING *url ) |
| { |
| switch (listener->binding) |
| { |
| case WS_TCP_CHANNEL_BINDING: |
| return open_listener_tcp( listener, url ); |
| |
| case WS_UDP_CHANNEL_BINDING: |
| return open_listener_udp( listener, url ); |
| |
| default: |
| ERR( "unhandled binding %u\n", listener->binding ); |
| return E_NOTIMPL; |
| } |
| } |
| |
| /************************************************************************** |
| * WsOpenListener [webservices.@] |
| */ |
| HRESULT WINAPI WsOpenListener( WS_LISTENER *handle, WS_STRING *url, const WS_ASYNC_CONTEXT *ctx, WS_ERROR *error ) |
| { |
| struct listener *listener = (struct listener *)handle; |
| HRESULT hr; |
| |
| TRACE( "%p %s %p %p\n", handle, url ? debugstr_wn(url->chars, url->length) : "null", ctx, error ); |
| if (error) FIXME( "ignoring error parameter\n" ); |
| if (ctx) FIXME( "ignoring ctx parameter\n" ); |
| |
| if (!listener || !url) return E_INVALIDARG; |
| |
| EnterCriticalSection( &listener->cs ); |
| |
| if (listener->magic != LISTENER_MAGIC) |
| { |
| LeaveCriticalSection( &listener->cs ); |
| return E_INVALIDARG; |
| } |
| |
| if (listener->state != WS_LISTENER_STATE_CREATED) |
| { |
| LeaveCriticalSection( &listener->cs ); |
| return WS_E_INVALID_OPERATION; |
| } |
| |
| hr = open_listener( listener, url ); |
| |
| LeaveCriticalSection( &listener->cs ); |
| return hr; |
| } |
| |
| static void close_listener( struct listener *listener ) |
| { |
| reset_listener( listener ); |
| listener->state = WS_LISTENER_STATE_CLOSED; |
| } |
| |
| /************************************************************************** |
| * WsCloseListener [webservices.@] |
| */ |
| HRESULT WINAPI WsCloseListener( WS_LISTENER *handle, const WS_ASYNC_CONTEXT *ctx, WS_ERROR *error ) |
| { |
| struct listener *listener = (struct listener *)handle; |
| |
| TRACE( "%p %p %p\n", handle, ctx, error ); |
| if (error) FIXME( "ignoring error parameter\n" ); |
| if (ctx) FIXME( "ignoring ctx parameter\n" ); |
| |
| if (!listener) return E_INVALIDARG; |
| |
| EnterCriticalSection( &listener->cs ); |
| |
| if (listener->magic != LISTENER_MAGIC) |
| { |
| LeaveCriticalSection( &listener->cs ); |
| return E_INVALIDARG; |
| } |
| |
| close_listener( listener ); |
| |
| LeaveCriticalSection( &listener->cs ); |
| return S_OK; |
| } |
| |
| /************************************************************************** |
| * WsResetListener [webservices.@] |
| */ |
| HRESULT WINAPI WsResetListener( WS_LISTENER *handle, WS_ERROR *error ) |
| { |
| struct listener *listener = (struct listener *)handle; |
| |
| TRACE( "%p %p\n", handle, error ); |
| if (error) FIXME( "ignoring error parameter\n" ); |
| |
| if (!listener) return E_INVALIDARG; |
| |
| EnterCriticalSection( &listener->cs ); |
| |
| if (listener->magic != LISTENER_MAGIC) |
| { |
| LeaveCriticalSection( &listener->cs ); |
| return E_INVALIDARG; |
| } |
| |
| if (listener->state != WS_LISTENER_STATE_CREATED && listener->state != WS_LISTENER_STATE_CLOSED) |
| { |
| LeaveCriticalSection( &listener->cs ); |
| return WS_E_INVALID_OPERATION; |
| } |
| |
| reset_listener( listener ); |
| |
| LeaveCriticalSection( &listener->cs ); |
| return S_OK; |
| } |
| |
| /************************************************************************** |
| * WsGetListenerProperty [webservices.@] |
| */ |
| HRESULT WINAPI WsGetListenerProperty( WS_LISTENER *handle, WS_LISTENER_PROPERTY_ID id, void *buf, |
| ULONG size, WS_ERROR *error ) |
| { |
| struct listener *listener = (struct listener *)handle; |
| HRESULT hr = S_OK; |
| |
| TRACE( "%p %u %p %u %p\n", handle, id, buf, size, error ); |
| if (error) FIXME( "ignoring error parameter\n" ); |
| |
| if (!listener) return E_INVALIDARG; |
| |
| EnterCriticalSection( &listener->cs ); |
| |
| if (listener->magic != LISTENER_MAGIC) |
| { |
| LeaveCriticalSection( &listener->cs ); |
| return E_INVALIDARG; |
| } |
| |
| switch (id) |
| { |
| case WS_LISTENER_PROPERTY_STATE: |
| if (!buf || size != sizeof(listener->state)) hr = E_INVALIDARG; |
| else *(WS_LISTENER_STATE *)buf = listener->state; |
| break; |
| |
| case WS_LISTENER_PROPERTY_CHANNEL_TYPE: |
| if (!buf || size != sizeof(listener->type)) hr = E_INVALIDARG; |
| else *(WS_CHANNEL_TYPE *)buf = listener->type; |
| break; |
| |
| case WS_LISTENER_PROPERTY_CHANNEL_BINDING: |
| if (!buf || size != sizeof(listener->binding)) hr = E_INVALIDARG; |
| else *(WS_CHANNEL_BINDING *)buf = listener->binding; |
| break; |
| |
| default: |
| hr = prop_get( listener->prop, listener->prop_count, id, buf, size ); |
| } |
| |
| LeaveCriticalSection( &listener->cs ); |
| return hr; |
| } |
| |
| /************************************************************************** |
| * WsSetListenerProperty [webservices.@] |
| */ |
| HRESULT WINAPI WsSetListenerProperty( WS_LISTENER *handle, WS_LISTENER_PROPERTY_ID id, const void *value, |
| ULONG size, WS_ERROR *error ) |
| { |
| struct listener *listener = (struct listener *)handle; |
| HRESULT hr; |
| |
| TRACE( "%p %u %p %u\n", handle, id, value, size ); |
| if (error) FIXME( "ignoring error parameter\n" ); |
| |
| if (!listener) return E_INVALIDARG; |
| |
| EnterCriticalSection( &listener->cs ); |
| |
| if (listener->magic != LISTENER_MAGIC) |
| { |
| LeaveCriticalSection( &listener->cs ); |
| return E_INVALIDARG; |
| } |
| |
| hr = prop_set( listener->prop, listener->prop_count, id, value, size ); |
| |
| LeaveCriticalSection( &listener->cs ); |
| return hr; |
| } |
| |
| /************************************************************************** |
| * WsAcceptChannel [webservices.@] |
| */ |
| HRESULT WINAPI WsAcceptChannel( WS_LISTENER *handle, WS_CHANNEL *channel_handle, const WS_ASYNC_CONTEXT *ctx, |
| WS_ERROR *error ) |
| { |
| struct listener *listener = (struct listener *)handle; |
| HRESULT hr = E_NOTIMPL; |
| HANDLE wait, cancel; |
| |
| TRACE( "%p %p %p %p\n", handle, channel_handle, ctx, error ); |
| if (error) FIXME( "ignoring error parameter\n" ); |
| if (ctx) FIXME( "ignoring ctx parameter\n" ); |
| |
| if (!listener || !channel_handle) return E_INVALIDARG; |
| |
| EnterCriticalSection( &listener->cs ); |
| |
| if (listener->magic != LISTENER_MAGIC) |
| { |
| LeaveCriticalSection( &listener->cs ); |
| return E_INVALIDARG; |
| } |
| |
| if (listener->state != WS_LISTENER_STATE_OPEN || listener->channel) |
| { |
| LeaveCriticalSection( &listener->cs ); |
| return WS_E_INVALID_OPERATION; |
| } |
| |
| wait = listener->wait; |
| cancel = listener->cancel; |
| listener->channel = channel_handle; |
| |
| switch (listener->binding) |
| { |
| case WS_TCP_CHANNEL_BINDING: |
| { |
| SOCKET socket = listener->u.tcp.socket; |
| |
| LeaveCriticalSection( &listener->cs ); |
| return channel_accept_tcp( socket, wait, cancel, channel_handle ); |
| } |
| case WS_UDP_CHANNEL_BINDING: |
| { |
| SOCKET socket = listener->u.udp.socket; |
| |
| LeaveCriticalSection( &listener->cs ); |
| return channel_accept_udp( socket, wait, cancel, channel_handle ); |
| } |
| default: |
| FIXME( "listener binding %u not supported\n", listener->binding ); |
| break; |
| } |
| |
| LeaveCriticalSection( &listener->cs ); |
| return hr; |
| } |
