1 /* 2 3 Copyright 1993, 1994, 1998 The Open Group 4 5 Permission to use, copy, modify, distribute, and sell this software and its 6 documentation for any purpose is hereby granted without fee, provided that 7 the above copyright notice appear in all copies and that both that 8 copyright notice and this permission notice appear in supporting 9 documentation. 10 11 The above copyright notice and this permission notice shall be included 12 in all copies or substantial portions of the Software. 13 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 15 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 16 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 17 IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 OTHER DEALINGS IN THE SOFTWARE. 21 22 Except as contained in this notice, the name of The Open Group shall 23 not be used in advertising or otherwise to promote the sale, use or 24 other dealings in this Software without prior written authorization 25 from 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 127 128 struct _XtransConnFd { 129 struct _XtransConnFd *next; 130 int fd; 131 int do_close; 132 }; 133 134 #endif 135 136 struct _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 2 154 155 typedef 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; 283 284 285 typedef 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) 326 327 static 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) 343 344 static 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 357 static 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 382 static inline void _X_ATTRIBUTE_PRINTF(1, 0) 383 VErrorF(const char *f, va_list args) 384 { 385 vfprintf(stderr, f, args); 386 fflush(stderr); 387 } 388 389 static inline void _X_ATTRIBUTE_PRINTF(1, 2) 390 ErrorF(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 */ 400 401 static inline void _X_ATTRIBUTE_PRINTF(2, 3) 402 prmsg(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_ */ 431
Indexes created Sat Jul 04 00:25:45 UTC 2026