| 1 |
/* |
| 2 |
* Copyright (c) 2020 joshua stein <jcs@jcs.org> |
| 3 |
* Copyright (c) 1990-1992 by the University of Illinois Board of Trustees |
| 4 |
* |
| 5 |
* Permission to use, copy, modify, and distribute this software for any |
| 6 |
* purpose with or without fee is hereby granted, provided that the above |
| 7 |
* copyright notice and this permission notice appear in all copies. |
| 8 |
* |
| 9 |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 10 |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 11 |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 12 |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 13 |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 14 |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 15 |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 16 |
*/ |
| 17 |
|
| 18 |
#include <stdio.h> |
| 19 |
#include <string.h> |
| 20 |
#include "tcp.h" |
| 21 |
|
| 22 |
#define RCV_BUFFER_SIZE 1024 |
| 23 |
#define TCP_BUFFER_SIZE 8192 |
| 24 |
#define OPEN_TIMEOUT 60 |
| 25 |
|
| 26 |
/* define to enable SOCKS5 code */ |
| 27 |
#undef SOCKS |
| 28 |
|
| 29 |
short gIPPDriverRefNum; |
| 30 |
|
| 31 |
OSErr |
| 32 |
_TCPInit(void) |
| 33 |
{ |
| 34 |
ParamBlockRec pb; |
| 35 |
OSErr osErr; |
| 36 |
|
| 37 |
memset(&pb, 0, sizeof(pb)); |
| 38 |
|
| 39 |
gIPPDriverRefNum = -1; |
| 40 |
|
| 41 |
pb.ioParam.ioCompletion = 0; |
| 42 |
pb.ioParam.ioNamePtr = "\p.IPP"; |
| 43 |
pb.ioParam.ioPermssn = fsCurPerm; |
| 44 |
|
| 45 |
osErr = PBOpen(&pb, false); |
| 46 |
if (noErr == osErr) |
| 47 |
gIPPDriverRefNum = pb.ioParam.ioRefNum; |
| 48 |
|
| 49 |
return osErr; |
| 50 |
} |
| 51 |
|
| 52 |
OSErr |
| 53 |
_TCPGetOurIP(ip_addr *ip, long *netMask) |
| 54 |
{ |
| 55 |
OSErr osErr; |
| 56 |
GetAddrParamBlock pb; |
| 57 |
|
| 58 |
memset(&pb, 0, sizeof(pb)); |
| 59 |
|
| 60 |
pb.csCode = ipctlGetAddr; |
| 61 |
pb.ioCRefNum = gIPPDriverRefNum; |
| 62 |
pb.ioResult = 1; |
| 63 |
|
| 64 |
osErr = PBControl((ParmBlkPtr)&pb, true); |
| 65 |
while (pb.ioResult > 0) |
| 66 |
; |
| 67 |
|
| 68 |
if (pb.ioResult != noErr) |
| 69 |
return pb.ioResult; |
| 70 |
|
| 71 |
if (ip != NULL) |
| 72 |
*ip = pb.ourAddress; |
| 73 |
if (netMask != NULL) |
| 74 |
*netMask = pb.ourNetMask; |
| 75 |
|
| 76 |
return osErr; |
| 77 |
} |
| 78 |
|
| 79 |
OSErr |
| 80 |
_TCPCreate(TCPiopb *pb, StreamPtr *stream, Ptr rcvBufPtr, long rcvBufLen, |
| 81 |
TCPNotifyProc aNotifyProc, Ptr userDataPtr, |
| 82 |
TCPIOCompletionProc ioCompletion, Boolean async) |
| 83 |
{ |
| 84 |
OSErr osErr; |
| 85 |
|
| 86 |
memset(pb, 0, sizeof(*pb)); |
| 87 |
|
| 88 |
pb->csCode = TCPCreate; |
| 89 |
pb->ioCompletion = ioCompletion; |
| 90 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 91 |
pb->ioResult = 1; |
| 92 |
|
| 93 |
pb->csParam.create.rcvBuff = rcvBufPtr; |
| 94 |
pb->csParam.create.rcvBuffLen = rcvBufLen; |
| 95 |
pb->csParam.create.notifyProc = aNotifyProc; |
| 96 |
pb->csParam.create.userDataPtr = userDataPtr; |
| 97 |
|
| 98 |
osErr = PBControl((ParmBlkPtr)pb, async); |
| 99 |
if (!async && (noErr == osErr)) { |
| 100 |
*stream = pb->tcpStream; |
| 101 |
} |
| 102 |
|
| 103 |
return osErr; |
| 104 |
} |
| 105 |
|
| 106 |
/* listen for an incoming connection */ |
| 107 |
OSErr |
| 108 |
_TCPPassiveOpen(TCPiopb *pb, StreamPtr stream, ip_addr *remoteIP, |
| 109 |
tcp_port *remotePort, ip_addr *localIP, tcp_port *localPort, |
| 110 |
Ptr userData, TCPIOCompletionProc ioCompletion, Boolean async) |
| 111 |
{ |
| 112 |
OSErr osErr; |
| 113 |
|
| 114 |
memset(pb, 0, sizeof(*pb)); |
| 115 |
|
| 116 |
pb->csCode = TCPPassiveOpen; |
| 117 |
pb->ioCompletion = ioCompletion; |
| 118 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 119 |
pb->tcpStream = stream; |
| 120 |
pb->ioResult = 1; |
| 121 |
|
| 122 |
pb->csParam.open.ulpTimeoutAction = 1; /* abort half-open connection */ |
| 123 |
pb->csParam.open.ulpTimeoutValue = 5; /* after 5 seconds */ |
| 124 |
pb->csParam.open.validityFlags = 0xC0; |
| 125 |
pb->csParam.open.commandTimeoutValue = 0; |
| 126 |
pb->csParam.open.remoteHost = 0; |
| 127 |
pb->csParam.open.remotePort = 0; |
| 128 |
pb->csParam.open.localHost = 0; |
| 129 |
pb->csParam.open.localPort = *localPort; |
| 130 |
pb->csParam.open.tosFlags = 0x1; /* low delay */ |
| 131 |
pb->csParam.open.precedence = 0; |
| 132 |
pb->csParam.open.dontFrag = 0; |
| 133 |
pb->csParam.open.timeToLive = 0; |
| 134 |
pb->csParam.open.security = 0; |
| 135 |
pb->csParam.open.optionCnt = 0; |
| 136 |
pb->csParam.open.userDataPtr = userData; |
| 137 |
|
| 138 |
osErr = PBControl((ParmBlkPtr) pb, async); |
| 139 |
if (!async && (osErr == noErr)) { |
| 140 |
if (remoteIP) |
| 141 |
*remoteIP = pb->csParam.open.remoteHost; |
| 142 |
if (remotePort) |
| 143 |
*remotePort = pb->csParam.open.remotePort; |
| 144 |
if (localIP) |
| 145 |
*localIP = pb->csParam.open.localHost; |
| 146 |
*localPort = pb->csParam.open.localPort; |
| 147 |
} |
| 148 |
|
| 149 |
return osErr; |
| 150 |
} |
| 151 |
|
| 152 |
/* make an outgoing connection */ |
| 153 |
OSErr |
| 154 |
_TCPActiveOpen(TCPiopb *pb, StreamPtr stream, ip_addr remoteIP, |
| 155 |
tcp_port remotePort, ip_addr *localIP, tcp_port *localPort, |
| 156 |
Ptr userData, TCPIOCompletionProc ioCompletion, Boolean async) |
| 157 |
{ |
| 158 |
OSErr osErr; |
| 159 |
short index; |
| 160 |
|
| 161 |
memset(pb, 0, sizeof(*pb)); |
| 162 |
|
| 163 |
pb->csCode = TCPActiveOpen; |
| 164 |
pb->ioCompletion = ioCompletion; |
| 165 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 166 |
pb->tcpStream = stream; |
| 167 |
pb->ioResult = 1; |
| 168 |
|
| 169 |
pb->csParam.open.ulpTimeoutValue = 30; |
| 170 |
pb->csParam.open.ulpTimeoutAction = 1; |
| 171 |
pb->csParam.open.validityFlags = 0xC0; |
| 172 |
#if 0 |
| 173 |
/* not available with this csCode */ |
| 174 |
pb->csParam.open.commandTimeoutValue = 30; |
| 175 |
#endif |
| 176 |
pb->csParam.open.remoteHost = remoteIP; |
| 177 |
pb->csParam.open.remotePort = remotePort; |
| 178 |
pb->csParam.open.localHost = 0; |
| 179 |
pb->csParam.open.localPort = *localPort; |
| 180 |
pb->csParam.open.tosFlags = 0; |
| 181 |
pb->csParam.open.precedence = 0; |
| 182 |
pb->csParam.open.dontFrag = 0; |
| 183 |
pb->csParam.open.timeToLive = 0; |
| 184 |
pb->csParam.open.security = 0; |
| 185 |
pb->csParam.open.optionCnt = 0; |
| 186 |
for (index = 0; index < sizeof(pb->csParam.open.options); ++index) |
| 187 |
pb->csParam.open.options[index] = 0; |
| 188 |
pb->csParam.open.userDataPtr = userData; |
| 189 |
|
| 190 |
osErr = PBControl((ParmBlkPtr) pb, async); |
| 191 |
if (!async && (noErr == osErr)) { |
| 192 |
*localIP = pb->csParam.open.localHost; |
| 193 |
*localPort = pb->csParam.open.localPort; |
| 194 |
} |
| 195 |
|
| 196 |
return osErr; |
| 197 |
} |
| 198 |
|
| 199 |
OSErr |
| 200 |
_TCPSend(TCPiopb *pb, StreamPtr stream, wdsEntry *wdsPtr, Ptr userData, |
| 201 |
TCPIOCompletionProc ioCompletion, Boolean async) |
| 202 |
{ |
| 203 |
memset(pb, 0, sizeof(*pb)); |
| 204 |
|
| 205 |
pb->csCode = TCPSend; |
| 206 |
pb->ioCompletion = ioCompletion; |
| 207 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 208 |
pb->tcpStream = stream; |
| 209 |
pb->ioResult = 1; |
| 210 |
|
| 211 |
pb->csParam.send.ulpTimeoutValue = 30; |
| 212 |
pb->csParam.send.ulpTimeoutAction = 1; |
| 213 |
pb->csParam.send.validityFlags = 0xC0; |
| 214 |
pb->csParam.send.pushFlag = 1; /* XXX */ |
| 215 |
pb->csParam.send.urgentFlag = 0; |
| 216 |
pb->csParam.send.wdsPtr = (Ptr)wdsPtr; |
| 217 |
pb->csParam.send.sendFree = 0; |
| 218 |
pb->csParam.send.sendLength = 0; |
| 219 |
pb->csParam.send.userDataPtr = userData; |
| 220 |
|
| 221 |
return PBControl((ParmBlkPtr)pb, async); |
| 222 |
} |
| 223 |
|
| 224 |
OSErr |
| 225 |
_TCPNoCopyRcv(TCPiopb *pb, StreamPtr stream, Ptr rdsPtr, |
| 226 |
unsigned short rdsLength, Ptr userData, TCPIOCompletionProc ioCompletion, |
| 227 |
Boolean async) |
| 228 |
{ |
| 229 |
memset(pb, 0, sizeof(*pb)); |
| 230 |
|
| 231 |
pb->csCode = TCPNoCopyRcv; |
| 232 |
pb->ioCompletion = ioCompletion; |
| 233 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 234 |
pb->tcpStream = stream; |
| 235 |
pb->ioResult = 1; |
| 236 |
|
| 237 |
pb->csParam.receive.commandTimeoutValue = 30; |
| 238 |
pb->csParam.receive.urgentFlag = 0; |
| 239 |
pb->csParam.receive.markFlag = 0; |
| 240 |
pb->csParam.receive.rdsPtr = rdsPtr; |
| 241 |
pb->csParam.receive.rdsLength = rdsLength; |
| 242 |
pb->csParam.receive.userDataPtr = userData; |
| 243 |
|
| 244 |
return PBControl((ParmBlkPtr)pb, async); |
| 245 |
} |
| 246 |
|
| 247 |
OSErr |
| 248 |
_TCPRcv(TCPiopb *pb, StreamPtr stream, Ptr rcvBufPtr, |
| 249 |
unsigned short *rcvBufLen, Ptr userData, TCPIOCompletionProc ioCompletion, |
| 250 |
Boolean async) |
| 251 |
{ |
| 252 |
OSErr osErr; |
| 253 |
|
| 254 |
memset(pb, 0, sizeof(*pb)); |
| 255 |
|
| 256 |
pb->csCode = TCPRcv; |
| 257 |
pb->ioCompletion = ioCompletion; |
| 258 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 259 |
pb->tcpStream = stream; |
| 260 |
pb->ioResult = 1; |
| 261 |
|
| 262 |
pb->csParam.receive.commandTimeoutValue = 30; |
| 263 |
pb->csParam.receive.urgentFlag = 0; |
| 264 |
pb->csParam.receive.markFlag = 0; |
| 265 |
pb->csParam.receive.rcvBuff = rcvBufPtr; |
| 266 |
pb->csParam.receive.rcvBuffLen = *rcvBufLen; |
| 267 |
pb->csParam.receive.userDataPtr = userData; |
| 268 |
|
| 269 |
osErr = PBControl((ParmBlkPtr)pb, async); |
| 270 |
if (!async) |
| 271 |
*rcvBufLen = pb->csParam.receive.rcvBuffLen; |
| 272 |
|
| 273 |
return osErr; |
| 274 |
} |
| 275 |
|
| 276 |
OSErr |
| 277 |
_TCPBfrReturn(TCPiopb *pb, StreamPtr stream, Ptr rdsPtr, Ptr userData, |
| 278 |
TCPIOCompletionProc ioCompletion, Boolean async) |
| 279 |
{ |
| 280 |
memset(pb, 0, sizeof(*pb)); |
| 281 |
|
| 282 |
pb->csCode = TCPRcvBfrReturn; |
| 283 |
pb->ioCompletion = ioCompletion; |
| 284 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 285 |
pb->tcpStream = stream; |
| 286 |
pb->ioResult = 1; |
| 287 |
|
| 288 |
pb->csParam.receive.rdsPtr = rdsPtr; |
| 289 |
pb->csParam.receive.userDataPtr = userData; |
| 290 |
|
| 291 |
return PBControl((ParmBlkPtr)pb, async); |
| 292 |
} |
| 293 |
|
| 294 |
OSErr |
| 295 |
_TCPClose(TCPiopb *pb, StreamPtr stream, Ptr userData, |
| 296 |
TCPIOCompletionProc ioCompletion, Boolean async) |
| 297 |
{ |
| 298 |
memset(pb, 0, sizeof(*pb)); |
| 299 |
|
| 300 |
pb->csCode = TCPClose; |
| 301 |
pb->ioCompletion = ioCompletion; |
| 302 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 303 |
pb->tcpStream = stream; |
| 304 |
pb->ioResult = 1; |
| 305 |
|
| 306 |
pb->csParam.close.ulpTimeoutValue = 30; |
| 307 |
pb->csParam.close.ulpTimeoutAction = 1; |
| 308 |
pb->csParam.close.validityFlags = 0xC0; |
| 309 |
pb->csParam.close.userDataPtr = userData; |
| 310 |
|
| 311 |
return PBControl((ParmBlkPtr)pb, async); |
| 312 |
} |
| 313 |
|
| 314 |
OSErr |
| 315 |
_TCPAbort(TCPiopb *pb, StreamPtr stream, Ptr userData, |
| 316 |
TCPIOCompletionProc ioCompletion, Boolean async) |
| 317 |
{ |
| 318 |
memset(pb, 0, sizeof(*pb)); |
| 319 |
|
| 320 |
pb->csCode = TCPAbort; |
| 321 |
pb->ioCompletion = ioCompletion; |
| 322 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 323 |
pb->tcpStream = stream; |
| 324 |
pb->ioResult = 1; |
| 325 |
|
| 326 |
pb->csParam.abort.userDataPtr = userData; |
| 327 |
|
| 328 |
return PBControl((ParmBlkPtr)pb, async); |
| 329 |
} |
| 330 |
|
| 331 |
OSErr |
| 332 |
_TCPStatus(TCPiopb *pb, StreamPtr stream, struct TCPStatusPB *status, |
| 333 |
Ptr userData, TCPIOCompletionProc ioCompletion, Boolean async) |
| 334 |
{ |
| 335 |
OSErr osErr; |
| 336 |
|
| 337 |
memset(pb, 0, sizeof(*pb)); |
| 338 |
|
| 339 |
pb->csCode = TCPStatus; |
| 340 |
pb->ioCompletion = ioCompletion; |
| 341 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 342 |
pb->tcpStream = stream; |
| 343 |
pb->csParam.status.userDataPtr = userData; |
| 344 |
pb->ioResult = 1; |
| 345 |
|
| 346 |
osErr = PBControl((ParmBlkPtr)pb, async); |
| 347 |
if (!async && (noErr == osErr)) { |
| 348 |
*status = pb->csParam.status; |
| 349 |
} |
| 350 |
|
| 351 |
return osErr; |
| 352 |
} |
| 353 |
|
| 354 |
OSErr |
| 355 |
_TCPRelease(TCPiopb *pb, StreamPtr stream, Ptr userData, |
| 356 |
TCPIOCompletionProc ioCompletion, Boolean async) |
| 357 |
{ |
| 358 |
OSErr osErr; |
| 359 |
|
| 360 |
memset(pb, 0, sizeof(*pb)); |
| 361 |
|
| 362 |
pb->csCode = TCPRelease; |
| 363 |
pb->ioCompletion = ioCompletion; |
| 364 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 365 |
pb->tcpStream = stream; |
| 366 |
pb->ioResult = 1; |
| 367 |
|
| 368 |
pb->csParam.status.userDataPtr = userData; |
| 369 |
|
| 370 |
osErr = PBControl((ParmBlkPtr)pb, async); |
| 371 |
|
| 372 |
return osErr; |
| 373 |
} |
| 374 |
|
| 375 |
OSErr |
| 376 |
_UDPMaxMTUSize(UDPiopb *pb, short *mtu) |
| 377 |
{ |
| 378 |
OSErr osErr; |
| 379 |
|
| 380 |
memset(pb, 0, sizeof(*pb)); |
| 381 |
|
| 382 |
pb->csCode = UDPMaxMTUSize; |
| 383 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 384 |
pb->ioResult = 1; |
| 385 |
|
| 386 |
pb->csParam.mtu.remoteHost = (ip_addr)0; |
| 387 |
|
| 388 |
osErr = PBControl((ParmBlkPtr)pb, false); |
| 389 |
|
| 390 |
if (osErr == noErr) |
| 391 |
*mtu = pb->csParam.mtu.mtuSize; |
| 392 |
|
| 393 |
return osErr; |
| 394 |
} |
| 395 |
|
| 396 |
OSErr |
| 397 |
_UDPCreate(UDPiopb *pb, StreamPtr *stream, Ptr rcvBufPtr, long rcvBufLen, |
| 398 |
UDPNotifyProc aNotifyProc, Ptr userDataPtr, |
| 399 |
UDPIOCompletionProc ioCompletion, Boolean async) |
| 400 |
{ |
| 401 |
OSErr osErr; |
| 402 |
|
| 403 |
memset(pb, 0, sizeof(*pb)); |
| 404 |
|
| 405 |
pb->csCode = UDPCreate; |
| 406 |
pb->ioCompletion = ioCompletion; |
| 407 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 408 |
pb->ioResult = 1; |
| 409 |
|
| 410 |
pb->csParam.create.rcvBuff = rcvBufPtr; |
| 411 |
pb->csParam.create.rcvBuffLen = rcvBufLen; |
| 412 |
pb->csParam.create.notifyProc = aNotifyProc; |
| 413 |
pb->csParam.create.userDataPtr = userDataPtr; |
| 414 |
|
| 415 |
osErr = PBControl((ParmBlkPtr)pb, async); |
| 416 |
if (!async && (noErr == osErr)) { |
| 417 |
*stream = pb->udpStream; |
| 418 |
} |
| 419 |
|
| 420 |
return osErr; |
| 421 |
} |
| 422 |
|
| 423 |
OSErr |
| 424 |
_UDPSend(UDPiopb *pb, StreamPtr stream, wdsEntry *wdsPtr, ip_addr remoteIP, |
| 425 |
udp_port remotePort, Ptr userData, UDPIOCompletionProc ioCompletion, |
| 426 |
Boolean async) |
| 427 |
{ |
| 428 |
memset(pb, 0, sizeof(*pb)); |
| 429 |
|
| 430 |
pb->csCode = UDPWrite; |
| 431 |
pb->ioCompletion = ioCompletion; |
| 432 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 433 |
pb->udpStream = stream; |
| 434 |
pb->ioResult = 1; |
| 435 |
|
| 436 |
pb->csParam.send.remoteHost = remoteIP; |
| 437 |
pb->csParam.send.remotePort = remotePort; |
| 438 |
pb->csParam.send.wdsPtr = (Ptr)wdsPtr; |
| 439 |
pb->csParam.send.checkSum = 0; |
| 440 |
pb->csParam.send.sendLength = 0; |
| 441 |
pb->csParam.send.userDataPtr = userData; |
| 442 |
|
| 443 |
return PBControl((ParmBlkPtr)pb, async); |
| 444 |
} |
| 445 |
|
| 446 |
OSErr |
| 447 |
_UDPRelease(UDPiopb *pb, StreamPtr stream, Ptr userData, |
| 448 |
UDPIOCompletionProc ioCompletion, Boolean async) |
| 449 |
{ |
| 450 |
OSErr osErr; |
| 451 |
|
| 452 |
memset(pb, 0, sizeof(*pb)); |
| 453 |
|
| 454 |
pb->csCode = UDPRelease; |
| 455 |
pb->ioCompletion = ioCompletion; |
| 456 |
pb->ioCRefNum = gIPPDriverRefNum; |
| 457 |
pb->udpStream = stream; |
| 458 |
pb->ioResult = 1; |
| 459 |
|
| 460 |
//pb->csParam.status.userDataPtr = userData; |
| 461 |
|
| 462 |
osErr = PBControl((ParmBlkPtr)pb, async); |
| 463 |
|
| 464 |
return osErr; |
| 465 |
} |
| 466 |
|
| 467 |
|
| 468 |
/* convenience functions */ |
| 469 |
|
| 470 |
pascal void |
| 471 |
StrToAddrMarkDone(struct hostInfo *hi, char *data) |
| 472 |
{ |
| 473 |
volatile int *done = (int *)data; |
| 474 |
*done = 1; |
| 475 |
} |
| 476 |
|
| 477 |
unsigned long |
| 478 |
ip2long(char *ip) |
| 479 |
{ |
| 480 |
unsigned long address = 0; |
| 481 |
short dotcount = 0, i; |
| 482 |
unsigned short b = 0; |
| 483 |
|
| 484 |
for (i = 0; ip[i] != 0; i++) { |
| 485 |
if (ip[i] == '.') { |
| 486 |
if (++dotcount > 3) |
| 487 |
return (0); |
| 488 |
address <<= 8; |
| 489 |
address |= b; |
| 490 |
b = 0; |
| 491 |
} else if (ip[i] >= '0' && ip[i] <= '9') { |
| 492 |
b *= 10; |
| 493 |
b += (ip[i] - '0'); |
| 494 |
if (b > 255) |
| 495 |
return (0); |
| 496 |
} else |
| 497 |
return (0); |
| 498 |
} |
| 499 |
|
| 500 |
if (dotcount != 3) |
| 501 |
return (0); |
| 502 |
address <<= 8; |
| 503 |
address |= b; |
| 504 |
return address; |
| 505 |
} |
| 506 |
|
| 507 |
void |
| 508 |
long2ip(unsigned long num, char *ip) |
| 509 |
{ |
| 510 |
unsigned char *tmp = (unsigned char *)# |
| 511 |
sprintf(ip, "%d.%d.%d.%d", tmp[0], tmp[1], tmp[2], tmp[3]); |
| 512 |
} |
| 513 |
|
| 514 |
#ifdef SOCKS |
| 515 |
#define SOCKS_VERSION_SOCKS5 0x5 |
| 516 |
#define SOCKS_METHOD_AUTH_NONE 0x0 |
| 517 |
#define SOCKS_REQUEST_CONNECT 0x1 |
| 518 |
#define SOCKS_REQUEST_ATYP_DOMAINNAME 0x3 |
| 519 |
#define SOCKS_REPLY_SUCCESS 0x0 |
| 520 |
|
| 521 |
OSErr |
| 522 |
SOCKS5TCPActiveOpen(TCPiopb *pb, StreamPtr stream, ip_addr socks_ip, |
| 523 |
tcp_port socks_port, char *remote_host, tcp_port remote_port, |
| 524 |
ip_addr *local_ip, tcp_port *local_port, Ptr user_data, |
| 525 |
TCPIOCompletionProc io_completion, Boolean async) |
| 526 |
{ |
| 527 |
OSErr err; |
| 528 |
TCPStatusPB status_pb; |
| 529 |
wdsEntry wds[2]; |
| 530 |
char data[255] = { 0 }; |
| 531 |
unsigned short len, remote_host_len; |
| 532 |
|
| 533 |
remote_host_len = strlen(remote_host); |
| 534 |
if (remote_host_len + 7 > sizeof(data)) |
| 535 |
return -1; |
| 536 |
|
| 537 |
err = _TCPActiveOpen(pb, stream, socks_ip, socks_port, local_ip, |
| 538 |
local_port, user_data, io_completion, async); |
| 539 |
if (err != noErr) |
| 540 |
return err; |
| 541 |
|
| 542 |
data[0] = SOCKS_VERSION_SOCKS5; |
| 543 |
data[1] = 1; /* nmethods */ |
| 544 |
data[2] = SOCKS_METHOD_AUTH_NONE; |
| 545 |
|
| 546 |
memset(&wds, 0, sizeof(wds)); |
| 547 |
wds[0].ptr = (Ptr)&data; |
| 548 |
wds[0].length = 3; |
| 549 |
|
| 550 |
err = _TCPSend(pb, stream, wds, nil, nil, false); |
| 551 |
if (err) |
| 552 |
goto fail; |
| 553 |
|
| 554 |
for (;;) { |
| 555 |
err = _TCPStatus(pb, stream, &status_pb, nil, nil, false); |
| 556 |
if (err != noErr) |
| 557 |
goto fail; |
| 558 |
|
| 559 |
if (status_pb.amtUnreadData >= 2) |
| 560 |
break; |
| 561 |
} |
| 562 |
|
| 563 |
len = 2; |
| 564 |
err = _TCPRcv(pb, stream, (Ptr)&data, &len, nil, nil, false); |
| 565 |
if (err != noErr) |
| 566 |
goto fail; |
| 567 |
|
| 568 |
if (data[0] != SOCKS_VERSION_SOCKS5 || data[1] != SOCKS_METHOD_AUTH_NONE) |
| 569 |
goto fail; |
| 570 |
|
| 571 |
len = 0; |
| 572 |
data[len++] = SOCKS_VERSION_SOCKS5; |
| 573 |
data[len++] = SOCKS_REQUEST_CONNECT; |
| 574 |
data[len++] = 0; /* reserved */ |
| 575 |
data[len++] = SOCKS_REQUEST_ATYP_DOMAINNAME; |
| 576 |
data[len++] = remote_host_len; |
| 577 |
memcpy(data + len, remote_host, remote_host_len); |
| 578 |
len += remote_host_len; |
| 579 |
data[len++] = (remote_port >> 8); |
| 580 |
data[len++] = (remote_port & 0xff); |
| 581 |
|
| 582 |
memset(&wds, 0, sizeof(wds)); |
| 583 |
wds[0].ptr = (Ptr)&data; |
| 584 |
wds[0].length = len; |
| 585 |
|
| 586 |
err = _TCPSend(pb, stream, wds, nil, nil, false); |
| 587 |
if (err) |
| 588 |
goto fail; |
| 589 |
|
| 590 |
for (;;) { |
| 591 |
err = _TCPStatus(pb, stream, &status_pb, nil, nil, false); |
| 592 |
if (err != noErr) |
| 593 |
goto fail; |
| 594 |
|
| 595 |
if (status_pb.amtUnreadData >= 7) |
| 596 |
break; |
| 597 |
} |
| 598 |
|
| 599 |
len = status_pb.amtUnreadData; |
| 600 |
if (len > sizeof(data)) |
| 601 |
len = sizeof(data); |
| 602 |
err = _TCPRcv(pb, stream, (Ptr)&data, &len, nil, nil, false); |
| 603 |
if (err != noErr) |
| 604 |
goto fail; |
| 605 |
|
| 606 |
if (data[0] != SOCKS_VERSION_SOCKS5 || data[1] != SOCKS_REPLY_SUCCESS) |
| 607 |
goto fail; |
| 608 |
|
| 609 |
return noErr; |
| 610 |
|
| 611 |
fail: |
| 612 |
_TCPClose(pb, stream, nil, nil, false); |
| 613 |
return err; |
| 614 |
} |
| 615 |
#endif /* SOCKS */ |