1 /*
2 * MSWSOCK specific functions
3 *
4 * Copyright (C) 2003 André Johansen
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22
23 #include <stdarg.h>
24
25 #include "windef.h"
26 #include "winbase.h"
27 #include "winsock2.h"
28 #include "mswsock.h"
29
30 #include "wine/debug.h"
31
32 WINE_DEFAULT_DEBUG_CHANNEL(mswsock);
33
34 static LPFN_ACCEPTEX acceptex_fn;
35 static LPFN_GETACCEPTEXSOCKADDRS acceptexsockaddrs_fn;
36 static LPFN_TRANSMITFILE transmitfile_fn;
37 static BOOL initialised;
38
39 /* Get pointers to the ws2_32 implementations.
40 * NOTE: This assumes that ws2_32 contains only one implementation
41 * of these functions, i.e. that you cannot get different functions
42 * back by passing another socket in. If that ever changes, we'll need
43 * to think about associating the functions with the socket and
44 * exposing that information to this dll somehow.
45 */
46 static void get_fn(SOCKET s, GUID* guid, FARPROC* fn)
47 {
48 FARPROC func;
49 DWORD len;
50 if (!WSAIoctl(s, SIO_GET_EXTENSION_FUNCTION_POINTER, guid, sizeof(*guid),
51 &func, sizeof(func), &len, NULL, NULL))
52 *fn = func;
53 }
54
55 static void get_fn_pointers(SOCKET s)
56 {
57 GUID acceptex_guid = WSAID_ACCEPTEX;
58 GUID acceptexsockaddrs_guid = WSAID_GETACCEPTEXSOCKADDRS;
59 GUID transmitfile_guid = WSAID_TRANSMITFILE;
60
61 get_fn(s, &acceptex_guid, (FARPROC*)&acceptex_fn);
62 get_fn(s, &acceptexsockaddrs_guid, (FARPROC*)&acceptexsockaddrs_fn);
63 get_fn(s, &transmitfile_guid, (FARPROC*)&transmitfile_fn);
64 initialised = TRUE;
65 }
66
67 /***********************************************************************
68 * AcceptEx (MSWSOCK.@)
69 *
70 * Accept a new connection, retrieving the connected addresses and initial data.
71 *
72 * listener [I] Listening socket
73 * acceptor [I] Socket to accept on
74 * dest [O] Destination for inital data
75 * dest_len [I] Size of dest in bytes
76 * local_addr_len [I] Number of bytes reserved in dest for local addrress
77 * rem_addr_len [I] Number of bytes reserved in dest for remote addrress
78 * received [O] Destination for number of bytes of initial data
79 * overlapped [I] For asynchronous execution
80 *
81 * RETURNS
82 * Success: TRUE
83 * Failure: FALSE. Use WSAGetLastError() for details of the error.
84 */
85 BOOL WINAPI AcceptEx(SOCKET listener, SOCKET acceptor, PVOID dest, DWORD dest_len,
86 DWORD local_addr_len, DWORD rem_addr_len, LPDWORD received,
87 LPOVERLAPPED overlapped)
88 {
89 if (!initialised)
90 get_fn_pointers(acceptor);
91
92 if (!acceptex_fn)
93 return FALSE;
94
95 return acceptex_fn(listener, acceptor, dest, dest_len, local_addr_len,
96 rem_addr_len, received, overlapped);
97 }
98
99 /***********************************************************************
100 * GetAcceptExSockaddrs (MSWSOCK.@)
101 *
102 * Get infomation about an accepted socket.
103 *
104 * data [O] Destination for the first block of data from AcceptEx()
105 * data_len [I] length of data in bytes
106 * local_len [I] Bytes reserved for local addrinfo
107 * rem_len [I] Bytes reserved for remote addrinfo
108 * local_addr [O] Destination for local sockaddr
109 * local_addr_len [I] Size of local_addr
110 * rem_addr [O] Destination for remote sockaddr
111 * rem_addr_len [I] Size of rem_addr
112 *
113 * RETURNS
114 * Nothing.
115 */
116 VOID WINAPI GetAcceptExSockaddrs(PVOID data, DWORD data_len, DWORD local_len, DWORD rem_len,
117 struct sockaddr **local_addr, LPINT local_addr_len,
118 struct sockaddr **rem_addr, LPINT rem_addr_len)
119 {
120 if (acceptexsockaddrs_fn)
121 acceptexsockaddrs_fn(data, data_len, local_len, rem_len,
122 local_addr, local_addr_len, rem_addr, rem_addr_len);
123 }
124
125
126 /***********************************************************************
127 * TransmitFile (MSWSOCK.@)
128 *
129 * Transmit a file over a socket.
130 *
131 * PARAMS
132 * s [I] Handle to a connected socket
133 * file [I] Opened file handle for file to send
134 * total_len [I] Total number of file bytes to send
135 * chunk_len [I] Chunk size to send file in (0=default)
136 * overlapped [I] For asynchronous operation
137 * buffers [I] Head/tail data, or NULL if none
138 * flags [I] TF_ Flags from mswsock.h
139 *
140 * RETURNS
141 * Success: TRUE
142 * Failure: FALSE. Use WSAGetLastError() for details of the error.
143 */
144 BOOL WINAPI TransmitFile(SOCKET s, HANDLE file, DWORD total_len,
145 DWORD chunk_len, LPOVERLAPPED overlapped,
146 LPTRANSMIT_FILE_BUFFERS buffers, DWORD flags)
147 {
148 if (!initialised)
149 get_fn_pointers(s);
150
151 if (!transmitfile_fn)
152 return FALSE;
153
154 return transmitfile_fn(s, file, total_len, chunk_len, overlapped, buffers, flags);
155 }
156
157 /***********************************************************************
158 * WSARecvEx (MSWSOCK.@)
159 */
160 INT WINAPI WSARecvEx(
161 SOCKET s, /* [in] Descriptor identifying a connected socket */
162 char *buf, /* [out] Buffer for the incoming data */
163 INT len, /* [in] Length of buf, in bytes */
164 INT *flags) /* [in/out] Indicator specifying whether the message is
165 fully or partially received for datagram sockets */
166 {
167 FIXME("not implemented\n");
168
169 return SOCKET_ERROR;
170 }
171
This page was automatically generated by the
LXR engine.
Visit the LXR main site for more
information.