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ShaderPlayground / deps / xlibre / include / X11 / Xtrans / Xtransint.h
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1/*
2
3Copyright 1993, 1994, 1998 The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included
12in all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
17IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
18OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20OTHER DEALINGS IN THE SOFTWARE.
21
22Except as contained in this notice, the name of The Open Group shall
23not be used in advertising or otherwise to promote the sale, use or
24other dealings in this Software without prior written authorization
25from The Open Group.
26
27 * Copyright 1993, 1994 NCR Corporation - Dayton, Ohio, USA
28 *
29 * All Rights Reserved
30 *
31 * Permission to use, copy, modify, and distribute this software and its
32 * documentation for any purpose and without fee is hereby granted, provided
33 * that the above copyright notice appear in all copies and that both that
34 * copyright notice and this permission notice appear in supporting
35 * documentation, and that the name NCR not be used in advertising
36 * or publicity pertaining to distribution of the software without specific,
37 * written prior permission. NCR makes no representations about the
38 * suitability of this software for any purpose. It is provided "as is"
39 * without express or implied warranty.
40 *
41 * NCR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
42 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
43 * NO EVENT SHALL NCR BE LIABLE FOR ANY SPECIAL, INDIRECT OR
44 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
45 * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
46 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
47 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
48 */
49
50#ifndef _XTRANSINT_H_
51#define _XTRANSINT_H_
52
53/*
54 * XTRANSDEBUG will enable the PRMSG() macros used in the X Transport
55 * Interface code. Each use of the PRMSG macro has a level associated with
56 * it. XTRANSDEBUG is defined to be a level. If the invocation level is =<
57 * the value of XTRANSDEBUG, then the message will be printed out to stderr.
58 * Recommended levels are:
59 *
60 * XTRANSDEBUG=1 Error messages
61 * XTRANSDEBUG=2 API Function Tracing
62 * XTRANSDEBUG=3 All Function Tracing
63 * XTRANSDEBUG=4 printing of intermediate values
64 * XTRANSDEBUG=5 really detailed stuff
65#define XTRANSDEBUG 2
66 *
67 * Defining XTRANSDEBUGTIMESTAMP will cause printing timestamps with each
68 * message.
69 */
70
71#if !defined(XTRANSDEBUG) && defined(XTRANS_TRANSPORT_C)
72# define XTRANSDEBUG 1
73#endif
74
75#ifdef WIN32
76# define _WILLWINSOCK_
77#endif
78
79#include "Xtrans.h"
80
81#ifndef _X_UNUSED /* Defined in Xfuncproto.h in xproto >= 7.0.22 */
82# define _X_UNUSED /* */
83#endif
84
85#ifdef XTRANSDEBUG
86# include <stdio.h>
87#endif /* XTRANSDEBUG */
88
89#include <errno.h>
90
91#ifndef WIN32
92# include <sys/socket.h>
93# include <netinet/in.h>
94# include <arpa/inet.h>
95
96/*
97 * Moved the setting of NEED_UTSNAME to this header file from Xtrans.c,
98 * to avoid a race condition. JKJ (6/5/97)
99 */
100
101# if defined(_POSIX_SOURCE) || defined(SVR4) || defined(__SVR4)
102# ifndef NEED_UTSNAME
103# define NEED_UTSNAME
104# endif
105# include <sys/utsname.h>
106# endif
107
108# define ESET(val) errno = val
109# define EGET() errno
110
111#else /* WIN32 */
112
113# include <limits.h> /* for USHRT_MAX */
114
115# define ESET(val) WSASetLastError(val)
116# define EGET() WSAGetLastError()
117
118#endif /* WIN32 */
119
120#include <stddef.h>
121
122#ifdef X11_t
123#define X_TCP_PORT 6000
124#endif
125
126#if XTRANS_SEND_FDS
127
128struct _XtransConnFd {
129 struct _XtransConnFd *next;
130 int fd;
131 int do_close;
132};
133
134#endif
135
136struct _XtransConnInfo {
137 struct _Xtransport *transptr;
138 int index;
139 char *priv;
140 int flags;
141 int fd;
142 char *port;
143 int family;
144 char *addr;
145 int addrlen;
146 char *peeraddr;
147 int peeraddrlen;
148 struct _XtransConnFd *recv_fds;
149 struct _XtransConnFd *send_fds;
150};
151
152#define XTRANS_OPEN_COTS_CLIENT 1
153#define XTRANS_OPEN_COTS_SERVER 2
154
155typedef struct _Xtransport {
156 const char *TransName;
157 int flags;
158
159#ifdef TRANS_CLIENT
160
161 XtransConnInfo (*OpenCOTSClient)(
162 struct _Xtransport *, /* transport */
163 const char *, /* protocol */
164 const char *, /* host */
165 const char * /* port */
166 );
167
168#endif /* TRANS_CLIENT */
169
170#ifdef TRANS_SERVER
171 const char ** nolisten;
172 XtransConnInfo (*OpenCOTSServer)(
173 struct _Xtransport *, /* transport */
174 const char *, /* protocol */
175 const char *, /* host */
176 const char * /* port */
177 );
178
179#endif /* TRANS_SERVER */
180
181#ifdef TRANS_REOPEN
182
183 XtransConnInfo (*ReopenCOTSServer)(
184 struct _Xtransport *, /* transport */
185 int, /* fd */
186 const char * /* port */
187 );
188
189#endif /* TRANS_REOPEN */
190
191
192 int (*SetOption)(
193 XtransConnInfo, /* connection */
194 int, /* option */
195 int /* arg */
196 );
197
198#ifdef TRANS_SERVER
199/* Flags */
200# define ADDR_IN_USE_ALLOWED 1
201
202 int (*CreateListener)(
203 XtransConnInfo, /* connection */
204 const char *, /* port */
205 unsigned int /* flags */
206 );
207
208 int (*ResetListener)(
209 XtransConnInfo /* connection */
210 );
211
212 XtransConnInfo (*Accept)(
213 XtransConnInfo, /* connection */
214 int * /* status */
215 );
216
217#endif /* TRANS_SERVER */
218
219#ifdef TRANS_CLIENT
220
221 int (*Connect)(
222 XtransConnInfo, /* connection */
223 const char *, /* host */
224 const char * /* port */
225 );
226
227#endif /* TRANS_CLIENT */
228
229 int (*BytesReadable)(
230 XtransConnInfo, /* connection */
231 BytesReadable_t * /* pend */
232 );
233
234 int (*Read)(
235 XtransConnInfo, /* connection */
236 char *, /* buf */
237 int /* size */
238 );
239
240 int (*Write)(
241 XtransConnInfo, /* connection */
242 const char *, /* buf */
243 int /* size */
244 );
245
246 int (*Readv)(
247 XtransConnInfo, /* connection */
248 struct iovec *, /* buf */
249 int /* size */
250 );
251
252 int (*Writev)(
253 XtransConnInfo, /* connection */
254 struct iovec *, /* buf */
255 int /* size */
256 );
257
258#if XTRANS_SEND_FDS
259 int (*SendFd)(
260 XtransConnInfo, /* connection */
261 int, /* fd */
262 int /* do_close */
263 );
264
265 int (*RecvFd)(
266 XtransConnInfo /* connection */
267 );
268#endif
269
270 int (*Disconnect)(
271 XtransConnInfo /* connection */
272 );
273
274 int (*Close)(
275 XtransConnInfo /* connection */
276 );
277
278 int (*CloseForCloning)(
279 XtransConnInfo /* connection */
280 );
281
282} Xtransport;
283
284
285typedef struct _Xtransport_table {
286 Xtransport *transport;
287 int transport_id;
288} Xtransport_table;
289
290
291/*
292 * Flags for the flags member of Xtransport.
293 */
294
295#define TRANS_ALIAS (1<<0) /* record is an alias, don't create server */
296#define TRANS_LOCAL (1<<1) /* local transport */
297#define TRANS_DISABLED (1<<2) /* Don't open this one */
298#define TRANS_NOLISTEN (1<<3) /* Don't listen on this one */
299#define TRANS_NOUNLINK (1<<4) /* Don't unlink transport endpoints */
300#define TRANS_ABSTRACT (1<<5) /* This previously meant that abstract sockets should be used available. For security
301 * reasons, this is now a no-op on the client side, but it is still supported for servers.
302 */
303#define TRANS_NOXAUTH (1<<6) /* Don't verify authentication (because it's secure some other way at the OS layer) */
304#define TRANS_RECEIVED (1<<7) /* The fd for this has already been opened by someone else. */
305
306/* Flags to preserve when setting others */
307#define TRANS_KEEPFLAGS (TRANS_NOUNLINK|TRANS_ABSTRACT)
308
309#ifdef XTRANS_TRANSPORT_C /* only provide static function prototypes when
310 building the transport.c file that has them in */
311
312#ifdef __clang__
313/* Not all clients make use of all provided statics */
314#pragma clang diagnostic push
315#pragma clang diagnostic ignored "-Wunused-function"
316#endif
317
318/*
319 * readv() and writev() don't exist or don't work correctly on some
320 * systems, so they may be emulated.
321 */
322
323#ifdef WIN32
324
325#define READV(ciptr, iov, iovcnt) TRANS(ReadV)(ciptr, iov, iovcnt)
326
327static int TRANS(ReadV)(
328 XtransConnInfo, /* ciptr */
329 struct iovec *, /* iov */
330 int /* iovcnt */
331);
332
333#else
334
335#define READV(ciptr, iov, iovcnt) readv(ciptr->fd, iov, iovcnt)
336
337#endif /* WIN32 */
338
339
340#ifdef WIN32
341
342#define WRITEV(ciptr, iov, iovcnt) TRANS(WriteV)(ciptr, iov, iovcnt)
343
344static int TRANS(WriteV)(
345 XtransConnInfo, /* ciptr */
346 struct iovec *, /* iov */
347 int /* iovcnt */
348);
349
350#else
351
352#define WRITEV(ciptr, iov, iovcnt) writev(ciptr->fd, iov, iovcnt)
353
354#endif /* WIN32 */
355
356#ifdef TRANS_SERVER
357static int trans_mkdir (
358 const char *, /* path */
359 int /* mode */
360);
361#endif
362
363#ifdef __clang__
364#pragma clang diagnostic pop
365#endif
366
367/*
368 * Some XTRANSDEBUG stuff
369 */
370
371#ifdef XTRANSDEBUG
372#include <stdarg.h>
373
374/*
375 * The X server and the font server both provide ErrorF() & VErrorF(). For
376 * other software that uses xtrans, we provide our own simple
377 * versions.
378 */
379# if (defined(XSERV_t) || defined(TRANS_HAS_ERRORF)) && defined(TRANS_SERVER)
380# include "os.h"
381# else
382static inline void _X_ATTRIBUTE_PRINTF(1, 0)
383VErrorF(const char *f, va_list args)
384{
385 vfprintf(stderr, f, args);
386 fflush(stderr);
387}
388
389static inline void _X_ATTRIBUTE_PRINTF(1, 2)
390ErrorF(const char *f, ...)
391{
392 va_list args;
393
394 va_start(args, f);
395 VErrorF(f, args);
396 va_end(args);
397}
398# endif /* xserver */
399#endif /* XTRANSDEBUG */
400
401static inline void _X_ATTRIBUTE_PRINTF(2, 3)
402prmsg(int lvl, const char *f, ...)
403{
404#ifdef XTRANSDEBUG
405 va_list args;
406
407 va_start(args, f);
408 if (lvl <= XTRANSDEBUG) {
409 int saveerrno = errno;
410
411 ErrorF("%s", __xtransname);
412 VErrorF(f, args);
413
414# ifdef XTRANSDEBUGTIMESTAMP
415 {
416 struct timeval tp;
417 gettimeofday(&tp, 0);
418 ErrorF("timestamp (ms): %d\n",
419 tp.tv_sec * 1000 + tp.tv_usec / 1000);
420 }
421# endif
422 errno = saveerrno;
423 }
424 va_end(args);
425#endif /* XTRANSDEBUG */
426}
427
428#endif /* XTRANS_TRANSPORT_C */
429
430#endif /* _XTRANSINT_H_ */