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
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
|
/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file os_abstraction.h Network stuff has many things that needs to be
* included and/or implemented by default.
* All those things are in this file.
*/
#ifndef NETWORK_CORE_OS_ABSTRACTION_H
#define NETWORK_CORE_OS_ABSTRACTION_H
/* Include standard stuff per OS */
#ifdef ENABLE_NETWORK
/* Windows stuff */
#if defined(_WIN32)
#include <errno.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <windows.h>
#define GET_LAST_ERROR() WSAGetLastError()
#undef EWOULDBLOCK
#define EWOULDBLOCK WSAEWOULDBLOCK
/* Windows has some different names for some types */
typedef unsigned long in_addr_t;
#if !(defined(__MINGW32__) || defined(__CYGWIN__))
/* Windows has some different names for some types */
typedef SSIZE_T ssize_t;
typedef int socklen_t;
# define IPPROTO_IPV6 41
#else
#include "../../os/windows/win32.h"
#include "../../core/alloc_func.hpp"
#define AI_ADDRCONFIG 0x00000400 /* Resolution only if global address configured */
#define IPV6_V6ONLY 27
static inline int OTTDgetnameinfo(const struct sockaddr *sa, socklen_t salen, char *host, DWORD hostlen, char *serv, DWORD servlen, int flags)
{
static int (WINAPI *getnameinfo)(const struct sockaddr *, socklen_t, char *, DWORD, char *, DWORD, int) = NULL;
static bool first_time = true;
if (first_time) {
LoadLibraryList((Function*)&getnameinfo, "ws2_32.dll\0getnameinfo\0\0");
first_time = false;
}
if (getnameinfo != NULL) return getnameinfo(sa, salen, host, hostlen, serv, servlen, flags);
strncpy(host, inet_ntoa(((const struct sockaddr_in *)sa)->sin_addr), hostlen);
return 0;
}
#define getnameinfo OTTDgetnameinfo
static inline int OTTDgetaddrinfo(const char *nodename, const char *servname, const struct addrinfo *hints, struct addrinfo **res)
{
static int (WINAPI *getaddrinfo)(const char *, const char *, const struct addrinfo *, struct addrinfo **) = NULL;
static bool first_time = true;
if (first_time) {
LoadLibraryList((Function*)&getaddrinfo, "ws2_32.dll\0getaddrinfo\0\0");
first_time = false;
}
if (getaddrinfo != NULL) return getaddrinfo(nodename, servname, hints, res);
*res = NULL;
in_addr_t ip = inet_addr(nodename);
if (ip == INADDR_NONE) {
struct hostent *he = gethostbyname(nodename);
if (he == NULL) return EAI_NONAME;
ip = (*(struct in_addr *)he->h_addr).s_addr;
}
struct sockaddr_in *sin = CallocT<struct sockaddr_in>(1);
sin->sin_family = AF_INET;
sin->sin_port = htons(strtoul(servname, NULL, 10));
sin->sin_addr.s_addr = ip;
struct addrinfo *ai = CallocT<struct addrinfo>(1);
ai->ai_family = PF_INET;
ai->ai_addr = (struct sockaddr*)sin;
ai->ai_addrlen = sizeof(*sin);
ai->ai_socktype = hints->ai_socktype;
*res = ai;
return 0;
}
#define getaddrinfo OTTDgetaddrinfo
static inline void OTTDfreeaddrinfo(struct addrinfo *ai)
{
static int (WINAPI *freeaddrinfo)(struct addrinfo *) = NULL;
static bool first_time = true;
if (ai == NULL) return;
if (first_time) {
LoadLibraryList((Function*)&freeaddrinfo, "ws2_32.dll\0freeaddrinfo\0\0");
first_time = false;
}
if (freeaddrinfo != NULL) {
freeaddrinfo(ai);
return;
}
do {
struct addrinfo *next = ai->ai_next;
free(ai->ai_addr);
free(ai);
ai = next;
} while (ai != NULL);
}
#define freeaddrinfo OTTDfreeaddrinfo
#endif /* __MINGW32__ && __CYGWIN__ */
#endif /* _WIN32 */
/* UNIX stuff */
#if defined(UNIX) && !defined(__OS2__)
# if defined(OPENBSD) || defined(__NetBSD__)
# define AI_ADDRCONFIG 0
# endif
# define SOCKET int
# define INVALID_SOCKET -1
# if !defined(__MORPHOS__) && !defined(__AMIGA__)
# define ioctlsocket ioctl
# if !defined(BEOS_NET_SERVER)
# define closesocket close
# endif
# define GET_LAST_ERROR() (errno)
# endif
/* Need this for FIONREAD on solaris */
# define BSD_COMP
/* Includes needed for UNIX-like systems */
# include <unistd.h>
# include <sys/ioctl.h>
# if defined(__BEOS__) && defined(BEOS_NET_SERVER)
# include <be/net/socket.h>
# include <be/kernel/OS.h> /* snooze() */
# include <be/net/netdb.h>
typedef unsigned long in_addr_t;
# define INADDR_NONE INADDR_BROADCAST
# else
# include <sys/socket.h>
# include <netinet/in.h>
# include <netinet/tcp.h>
# include <arpa/inet.h>
# include <net/if.h>
/* According to glibc/NEWS, <ifaddrs.h> appeared in glibc-2.3. */
# if !defined(__sgi__) && !defined(SUNOS) && !defined(__MORPHOS__) && !defined(__BEOS__) && !defined(__HAIKU__) && !defined(__INNOTEK_LIBC__) \
&& !(defined(__GLIBC__) && (__GLIBC__ <= 2) && (__GLIBC_MINOR__ <= 2)) && !defined(__dietlibc__) && !defined(HPUX)
/* If for any reason ifaddrs.h does not exist on your system, comment out
* the following two lines and an alternative way will be used to fetch
* the list of IPs from the system. */
# include <ifaddrs.h>
# define HAVE_GETIFADDRS
# endif
# if !defined(INADDR_NONE)
# define INADDR_NONE 0xffffffff
# endif
# if defined(__BEOS__) && !defined(BEOS_NET_SERVER)
/* needed on Zeta */
# include <sys/sockio.h>
# endif
# endif /* BEOS_NET_SERVER */
# if !defined(__BEOS__) && defined(__GLIBC__) && (__GLIBC__ <= 2) && (__GLIBC_MINOR__ <= 1)
typedef uint32_t in_addr_t;
# endif
# include <errno.h>
# include <sys/time.h>
# include <netdb.h>
#endif /* UNIX */
#ifdef __BEOS__
typedef int socklen_t;
#endif
#ifdef __HAIKU__
#define IPV6_V6ONLY 27
#endif
/* OS/2 stuff */
#if defined(__OS2__)
# define SOCKET int
# define INVALID_SOCKET -1
# define ioctlsocket ioctl
# define closesocket close
# define GET_LAST_ERROR() (sock_errno())
/* Includes needed for OS/2 systems */
# include <types.h>
# include <unistd.h>
# include <sys/ioctl.h>
# include <sys/socket.h>
# include <netinet/in.h>
# include <netinet/tcp.h>
# include <arpa/inet.h>
# include <net/if.h>
# include <errno.h>
# include <sys/time.h>
# include <netdb.h>
# include <nerrno.h>
# define INADDR_NONE 0xffffffff
# include "../../3rdparty/os2/getaddrinfo.h"
# include "../../3rdparty/os2/getnameinfo.h"
#define IPV6_V6ONLY 27
/*
* IPv6 address
*/
struct in6_addr {
union {
uint8_t __u6_addr8[16];
uint16_t __u6_addr16[8];
uint32_t __u6_addr32[4];
} __u6_addr; /* 128-bit IP6 address */
};
#define s6_addr __u6_addr.__u6_addr8
struct sockaddr_in6 {
uint8_t sin6_len; /* length of this struct */
sa_family_t sin6_family; /* AF_INET6 */
in_port_t sin6_port; /* Transport layer port # */
uint32_t sin6_flowinfo; /* IP6 flow information */
struct in6_addr sin6_addr; /* IP6 address */
uint32_t sin6_scope_id; /* scope zone index */
};
typedef int socklen_t;
#if !defined(__INNOTEK_LIBC__)
typedef unsigned long in_addr_t;
#endif /* __INNOTEK_LIBC__ */
#endif /* OS/2 */
/* MorphOS and Amiga stuff */
#if defined(__MORPHOS__) || defined(__AMIGA__)
# include <exec/types.h>
# include <proto/exec.h> /* required for Open/CloseLibrary() */
/* MorphOS defines his network functions with UBYTE arrays while we
* use char arrays. This gives tons of unneeded warnings */
# define UBYTE char
# if defined(__MORPHOS__)
# include <sys/filio.h> /* FIO* defines */
# include <sys/sockio.h> /* SIO* defines */
# include <netinet/in.h>
# else /* __AMIGA__ */
# include <proto/socket.h>
# endif
/* Make the names compatible */
# define closesocket(s) CloseSocket(s)
# define GET_LAST_ERROR() Errno()
# define ioctlsocket(s, request, status) IoctlSocket((LONG)s, (ULONG)request, (char*)status)
# define ioctl ioctlsocket
typedef unsigned int in_addr_t;
typedef long socklen_t;
extern struct Library *SocketBase;
# ifdef __AMIGA__
/* for usleep() implementation */
extern struct Device *TimerBase;
extern struct MsgPort *TimerPort;
extern struct timerequest *TimerRequest;
# endif
#endif /* __MORPHOS__ || __AMIGA__ */
/**
* Try to set the socket into non-blocking mode.
* @param d The socket to set the non-blocking more for.
* @return True if setting the non-blocking mode succeeded, otherwise false.
*/
static inline bool SetNonBlocking(SOCKET d)
{
#ifdef _WIN32
u_long nonblocking = 1;
#else
int nonblocking = 1;
#endif
#if (defined(__BEOS__) && defined(BEOS_NET_SERVER))
return setsockopt(d, SOL_SOCKET, SO_NONBLOCK, &nonblocking, sizeof(nonblocking)) == 0;
#else
return ioctlsocket(d, FIONBIO, &nonblocking) == 0;
#endif
}
/**
* Try to set the socket to not delay sending.
* @param d The socket to disable the delaying for.
* @return True if disabling the delaying succeeded, otherwise false.
*/
static inline bool SetNoDelay(SOCKET d)
{
/* XXX should this be done at all? */
#if !defined(BEOS_NET_SERVER) /* not implemented on BeOS net_server */
int b = 1;
/* The (const char*) cast is needed for windows */
return setsockopt(d, IPPROTO_TCP, TCP_NODELAY, (const char*)&b, sizeof(b)) == 0;
#else
return true;
#endif
}
/* Make sure these structures have the size we expect them to be */
assert_compile(sizeof(in_addr) == 4); ///< IPv4 addresses should be 4 bytes.
assert_compile(sizeof(in6_addr) == 16); ///< IPv6 addresses should be 16 bytes.
#endif /* ENABLE_NETWORK */
#endif /* NETWORK_CORE_OS_ABSTRACTION_H */
|