1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- G N A T . S O C K E T S . T H I N --
-- --
-- S p e c --
-- --
-- Copyright (C) 2001-2012, AdaCore --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This package provides a target dependent thin interface to the sockets
-- layer for use by the GNAT.Sockets package (g-socket.ads). This package
-- should not be directly with'ed by an applications program.
-- This version is for NT
with Interfaces.C.Strings;
with GNAT.Sockets.Thin_Common;
with System;
with System.CRTL;
package GNAT.Sockets.Thin is
use Thin_Common;
package C renames Interfaces.C;
use type System.CRTL.ssize_t;
function Socket_Errno return Integer;
-- Returns last socket error number
procedure Set_Socket_Errno (Errno : Integer);
-- Set last socket error number
function Socket_Error_Message (Errno : Integer) return C.Strings.chars_ptr;
-- Returns the error message string for the error number Errno. If Errno is
-- not known, returns "Unknown system error".
function Host_Errno return Integer;
pragma Import (C, Host_Errno, "__gnat_get_h_errno");
-- Returns last host error number
package Host_Error_Messages is
function Host_Error_Message
(H_Errno : Integer) return C.Strings.chars_ptr;
-- Returns the error message string for the host error number H_Errno.
-- If H_Errno is not known, returns "Unknown system error".
end Host_Error_Messages;
--------------------------------
-- Standard library functions --
--------------------------------
function C_Accept
(S : C.int;
Addr : System.Address;
Addrlen : not null access C.int) return C.int;
function C_Bind
(S : C.int;
Name : System.Address;
Namelen : C.int) return C.int;
function C_Close
(Fd : C.int) return C.int;
function C_Connect
(S : C.int;
Name : System.Address;
Namelen : C.int) return C.int;
function C_Gethostname
(Name : System.Address;
Namelen : C.int) return C.int;
function C_Getpeername
(S : C.int;
Name : System.Address;
Namelen : not null access C.int) return C.int;
function C_Getsockname
(S : C.int;
Name : System.Address;
Namelen : not null access C.int) return C.int;
function C_Getsockopt
(S : C.int;
Level : C.int;
Optname : C.int;
Optval : System.Address;
Optlen : not null access C.int) return C.int;
function Socket_Ioctl
(S : C.int;
Req : SOSC.IOCTL_Req_T;
Arg : access C.int) return C.int;
function C_Listen
(S : C.int;
Backlog : C.int) return C.int;
function C_Recv
(S : C.int;
Msg : System.Address;
Len : C.int;
Flags : C.int) return C.int;
function C_Recvfrom
(S : C.int;
Msg : System.Address;
Len : C.int;
Flags : C.int;
From : System.Address;
Fromlen : not null access C.int) return C.int;
function C_Recvmsg
(S : C.int;
Msg : System.Address;
Flags : C.int) return System.CRTL.ssize_t;
function C_Select
(Nfds : C.int;
Readfds : access Fd_Set;
Writefds : access Fd_Set;
Exceptfds : access Fd_Set;
Timeout : Timeval_Access) return C.int;
function C_Sendmsg
(S : C.int;
Msg : System.Address;
Flags : C.int) return System.CRTL.ssize_t;
function C_Sendto
(S : C.int;
Msg : System.Address;
Len : C.int;
Flags : C.int;
To : System.Address;
Tolen : C.int) return C.int;
function C_Setsockopt
(S : C.int;
Level : C.int;
Optname : C.int;
Optval : System.Address;
Optlen : C.int) return C.int;
function C_Shutdown
(S : C.int;
How : C.int) return C.int;
function C_Socket
(Domain : C.int;
Typ : C.int;
Protocol : C.int) return C.int;
function C_System
(Command : System.Address) return C.int;
function WSAStartup
(WS_Version : Interfaces.C.unsigned_short;
WSADataAddress : System.Address) return Interfaces.C.int;
-------------------------------------------------------
-- Signalling file descriptors for selector abortion --
-------------------------------------------------------
package Signalling_Fds is
function Create (Fds : not null access Fd_Pair) return C.int;
pragma Convention (C, Create);
-- Create a pair of connected descriptors suitable for use with C_Select
-- (used for signalling in Selector objects).
function Read (Rsig : C.int) return C.int;
pragma Convention (C, Read);
-- Read one byte of data from rsig, the read end of a pair of signalling
-- fds created by Create_Signalling_Fds.
function Write (Wsig : C.int) return C.int;
pragma Convention (C, Write);
-- Write one byte of data to wsig, the write end of a pair of signalling
-- fds created by Create_Signalling_Fds.
procedure Close (Sig : C.int);
pragma Convention (C, Close);
-- Close one end of a pair of signalling fds (ignoring any error)
end Signalling_Fds;
procedure WSACleanup;
procedure Initialize;
procedure Finalize;
private
pragma Import (Stdcall, C_Accept, "accept");
pragma Import (Stdcall, C_Bind, "bind");
pragma Import (Stdcall, C_Close, "closesocket");
pragma Import (Stdcall, C_Gethostname, "gethostname");
pragma Import (Stdcall, C_Getpeername, "getpeername");
pragma Import (Stdcall, C_Getsockname, "getsockname");
pragma Import (Stdcall, C_Getsockopt, "getsockopt");
pragma Import (Stdcall, C_Listen, "listen");
pragma Import (Stdcall, C_Recv, "recv");
pragma Import (Stdcall, C_Recvfrom, "recvfrom");
pragma Import (Stdcall, C_Sendto, "sendto");
pragma Import (Stdcall, C_Setsockopt, "setsockopt");
pragma Import (Stdcall, C_Shutdown, "shutdown");
pragma Import (Stdcall, C_Socket, "socket");
pragma Import (C, C_System, "_system");
pragma Import (Stdcall, Socket_Errno, "WSAGetLastError");
pragma Import (Stdcall, Set_Socket_Errno, "WSASetLastError");
pragma Import (Stdcall, WSAStartup, "WSAStartup");
pragma Import (Stdcall, WSACleanup, "WSACleanup");
end GNAT.Sockets.Thin;
|
