193194e2 |
1 | /* |
2 | * Copyright (c) 2003 Ben Harris |
3 | * All rights reserved. |
4 | * |
5 | * Permission is hereby granted, free of charge, to any person |
6 | * obtaining a copy of this software and associated documentation |
7 | * files (the "Software"), to deal in the Software without |
8 | * restriction, including without limitation the rights to use, |
9 | * copy, modify, merge, publish, distribute, sublicense, and/or |
10 | * sell copies of the Software, and to permit persons to whom the |
11 | * Software is furnished to do so, subject to the following |
12 | * conditions: |
13 | * |
14 | * The above copyright notice and this permission notice shall be |
15 | * included in all copies or substantial portions of the Software. |
16 | * |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
18 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
20 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR |
21 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF |
22 | * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
23 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
24 | * SOFTWARE. |
25 | */ |
26 | /* |
27 | * mtcpnet.c - MacTCP interface |
28 | */ |
29 | |
30 | #include <MacTypes.h> |
31 | #include <Devices.h> |
32 | #include <Endian.h> |
33 | #include <Folders.h> |
34 | #include <MacTCP.h> |
35 | #include <MixedMode.h> |
36 | #include <Resources.h> |
37 | |
38 | #include <assert.h> |
39 | |
d25f9823 |
40 | #define DEFINE_PLUG_METHOD_MACROS |
193194e2 |
41 | #include "putty.h" |
42 | #include "network.h" |
43 | #include "mac.h" |
44 | |
45 | /* |
46 | * The following structures are documented as being in |
47 | * <AddressXlation.h>, but that isn't shipped with Universal |
48 | * Interfaces, and it's easier to define them here than to require |
49 | * people to download yet another SDK. |
50 | */ |
51 | |
52 | static OSErr OpenResolver(char *); |
53 | static OSErr CloseResolver(void); |
54 | |
55 | enum { |
56 | OPENRESOLVER = 1, |
57 | CLOSERESOLVER, |
58 | STRTOADDR, |
59 | ADDRTOSTR, |
60 | ENUMCACHE, |
61 | ADDRTONAME, |
62 | HXINFO, |
63 | MXINFO |
64 | }; |
65 | |
66 | #define NUM_ALT_ADDRS 4 |
67 | |
68 | typedef struct hostInfo { |
69 | int rtnCode; |
70 | char cname[255]; |
71 | unsigned long addr[NUM_ALT_ADDRS]; |
72 | }; |
73 | |
74 | typedef CALLBACK_API(void, ResultProcPtr)(struct hostInfo *, char *); |
75 | typedef STACK_UPP_TYPE(ResultProcPtr) ResultUPP; |
76 | enum { uppResultProcInfo = kPascalStackBased |
77 | | STACK_ROUTINE_PARAMETER(1, SIZE_CODE(sizeof(struct hostInfo*))) |
78 | | STACK_ROUTINE_PARAMETER(2, SIZE_CODE(sizeof(char *))) |
79 | }; |
80 | #define NewResultUPP(userRoutine) \ |
81 | (ResultUPP)NewRoutineDescriptor((ProcPtr)(userRoutine), \ |
82 | uppResultProcInfo, \ |
83 | GetCurrentArchitecture()) |
84 | #define DisposeResultUPP(userUPP) DisposeRoutineDescriptor(userUPP) |
85 | |
86 | static OSErr StrToAddr(char *, struct hostInfo *, ResultUPP *, char *); |
87 | |
88 | typedef CALLBACK_API_C(OSErr, OpenResolverProcPtr)(UInt32, char *); |
89 | typedef STACK_UPP_TYPE(OpenResolverProcPtr) OpenResolverUPP; |
90 | enum { uppOpenResolverProcInfo = kCStackBased |
91 | | RESULT_SIZE(SIZE_CODE(sizeof(OSErr))) |
92 | | STACK_ROUTINE_PARAMETER(1, SIZE_CODE(sizeof(UInt32))) |
93 | | STACK_ROUTINE_PARAMETER(2, SIZE_CODE(sizeof(char*))) |
94 | }; |
95 | #define InvokeOpenResolverUPP(selector, fileName, userUPP) \ |
96 | CALL_TWO_PARAMETER_UPP((userUPP), uppOpenResolverProcInfo, \ |
97 | (selector), (fileName)) |
98 | |
99 | typedef CALLBACK_API_C(OSErr, CloseResolverProcPtr)(UInt32); |
100 | typedef STACK_UPP_TYPE(CloseResolverProcPtr) CloseResolverUPP; |
101 | enum { uppCloseResolverProcInfo = kCStackBased |
102 | | RESULT_SIZE(SIZE_CODE(sizeof(OSErr))) |
103 | | STACK_ROUTINE_PARAMETER(1, SIZE_CODE(sizeof(UInt32))) |
104 | }; |
105 | #define InvokeCloseResolverUPP(selector, userUPP) \ |
106 | CALL_ONE_PARAMETER_UPP((userUPP), uppCloseResolverProcInfo, (selector)) |
107 | |
108 | typedef CALLBACK_API_C(OSErr, StrToAddrProcPtr)(UInt32, char *, |
109 | struct hostInfo *, ResultUPP, |
110 | char *); |
111 | typedef STACK_UPP_TYPE(StrToAddrProcPtr) StrToAddrUPP; |
112 | enum { uppStrToAddrProcInfo = kCStackBased |
113 | | RESULT_SIZE(SIZE_CODE(sizeof(OSErr))) |
114 | | STACK_ROUTINE_PARAMETER(1, SIZE_CODE(sizeof(UInt32))) |
115 | | STACK_ROUTINE_PARAMETER(2, SIZE_CODE(sizeof(char *))) |
116 | | STACK_ROUTINE_PARAMETER(3, SIZE_CODE(sizeof(struct hostInfo *))) |
117 | | STACK_ROUTINE_PARAMETER(4, SIZE_CODE(sizeof(ResultUPP))) |
118 | | STACK_ROUTINE_PARAMETER(5, SIZE_CODE(sizeof(char *))) |
119 | }; |
120 | #define InvokeStrToAddrUPP(selector, hostName, hostInfoPtr, ResultProc, \ |
121 | userDataPtr, userUPP) \ |
122 | CALL_FIVE_PARAMETER_UPP((userUPP), uppStrToAddrProcInfo, (selector),\ |
123 | (hostName), (hostInfoPtr), (ResultProc), \ |
124 | (userDataPtr)) |
125 | #define StrToAddr(hostName, hostInfoPtr, ResultProc, userDataPtr) \ |
126 | InvokeStrToAddrUPP(STRTOADDR, hostName, hostInfoPtr, ResultProc, \ |
127 | userDataPtr, (StrToAddrUPP)*mactcp.dnr_handle) |
128 | |
129 | typedef CALLBACK_API_C(OSErr, AddrToStrProcPtr)(UInt32, unsigned long, char *); |
130 | typedef STACK_UPP_TYPE(AddrToStrProcPtr) AddrToStrUPP; |
131 | enum { uppAddrToStrProcInfo = kCStackBased |
132 | | RESULT_SIZE(SIZE_CODE(sizeof(OSErr))) |
133 | | STACK_ROUTINE_PARAMETER(1, SIZE_CODE(sizeof(unsigned long))) |
134 | | STACK_ROUTINE_PARAMETER(2, SIZE_CODE(sizeof(char *))) |
135 | }; |
136 | #define InvokeAddrToStrUPP(selector, addr, addrStr, userUPP) \ |
137 | CALL_THREE_PARAMETER_UPP((userUPP), uppAddrToStrProcInfo, (selector),\ |
138 | (addr), (addrStr)) |
139 | #define AddrToStr(addr, addrStr) \ |
140 | InvokeAddrToStrUPP(ADDRTOSTR, addr, addrStr, \ |
141 | (AddrToStrUPP)*mactcp.dnr_handle) |
142 | |
143 | /* End of AddressXlation.h bits */ |
144 | |
145 | struct Socket_tag { |
146 | struct socket_function_table *fn; |
147 | /* the above variable absolutely *must* be the first in this structure */ |
2beb0fb0 |
148 | StreamPtr s; |
149 | OSErr err; |
150 | Plug plug; |
151 | void *private_ptr; |
152 | bufchain output_data; |
153 | int connected; |
154 | int writable; |
155 | int frozen; /* this causes readability notifications to be ignored */ |
156 | int frozen_readable; /* this means we missed at least one readability |
157 | * notification while we were frozen */ |
158 | int localhost_only; /* for listening sockets */ |
159 | char oobdata[1]; |
160 | int sending_oob; |
161 | int oobpending; /* is there OOB data available to read? */ |
162 | int oobinline; |
163 | int pending_error; /* in case send() returns error */ |
164 | int listener; |
d25f9823 |
165 | struct Socket_tag *next; |
166 | struct Socket_tag **prev; |
193194e2 |
167 | }; |
168 | |
169 | /* |
170 | * We used to typedef struct Socket_tag *Socket. |
171 | * |
172 | * Since we have made the networking abstraction slightly more |
173 | * abstract, Socket no longer means a tcp socket (it could mean |
174 | * an ssl socket). So now we must use Actual_Socket when we know |
175 | * we are talking about a tcp socket. |
176 | */ |
177 | typedef struct Socket_tag *Actual_Socket; |
178 | |
179 | struct SockAddr_tag { |
180 | int resolved; |
181 | struct hostInfo hostinfo; |
182 | char hostname[512]; |
183 | }; |
184 | |
185 | /* Global variables */ |
186 | static struct { |
187 | Handle dnr_handle; |
188 | int initialised; |
189 | short refnum; |
5221f554 |
190 | ProcessSerialNumber self; |
d25f9823 |
191 | Actual_Socket socklist; |
193194e2 |
192 | } mactcp; |
193 | |
194 | static pascal void mactcp_lookupdone(struct hostInfo *hi, char *cookie); |
5221f554 |
195 | static pascal void mactcp_asr(StreamPtr, unsigned short, Ptr, unsigned short, |
196 | struct ICMPReport *); |
2beb0fb0 |
197 | static Plug mactcp_plug(Socket, Plug); |
198 | static void mactcp_flush(Socket); |
199 | static void mactcp_close(Socket); |
200 | static int mactcp_write(Socket, char *, int); |
201 | static int mactcp_write_oob(Socket, char *, int); |
202 | static void mactcp_set_private_ptr(Socket, void *); |
203 | static void *mactcp_get_private_ptr(Socket); |
204 | static char *mactcp_socket_error(Socket); |
205 | static void mactcp_set_frozen(Socket, int); |
193194e2 |
206 | |
d25f9823 |
207 | static void mactcp_recv(Actual_Socket s, size_t len); |
208 | |
193194e2 |
209 | /* |
210 | * Initialise MacTCP. |
211 | * This should be called once before any TCP connection is opened. |
212 | */ |
213 | |
214 | OSErr mactcp_init(void) |
215 | { |
216 | OSErr err; |
217 | |
218 | /* |
219 | * IM:Devices describes a convoluted way of finding a spare unit |
220 | * number to open a driver on before calling OpenDriver. Happily, |
2beb0fb0 |
221 | * the MacTCP INIT ensures that .IPP is already open (and hence |
222 | * has a valid unit number already) so we don't need to go through |
223 | * all that. (MacTCP Programmer's Guide p6) |
193194e2 |
224 | */ |
225 | err = OpenDriver("\p.IPP", &mactcp.refnum); |
226 | if (err != noErr) return err; |
227 | err = OpenResolver(NULL); |
228 | if (err != noErr) return err; |
229 | |
230 | mactcp.initialised = TRUE; |
231 | return noErr; |
232 | } |
233 | |
234 | void mactcp_shutdown(void) |
235 | { |
236 | |
237 | CloseResolver(); |
238 | mactcp.initialised = FALSE; |
239 | } |
240 | |
241 | static ResultUPP mactcp_lookupdone_upp; |
242 | |
243 | SockAddr sk_namelookup(char *host, char **canonicalname) |
244 | { |
245 | SockAddr ret = smalloc(sizeof(struct SockAddr_tag)); |
246 | OSErr err; |
247 | volatile int done = FALSE; |
248 | char *realhost; |
249 | |
250 | /* Clear the structure. */ |
251 | memset(ret, 0, sizeof(struct SockAddr_tag)); |
252 | if (mactcp_lookupdone_upp == NULL) |
253 | mactcp_lookupdone_upp = NewResultUPP(&mactcp_lookupdone); |
254 | err = StrToAddr(host, &ret->hostinfo, mactcp_lookupdone_upp, |
255 | (char *)&done); |
256 | /* |
257 | * PuTTY expects DNS lookups to be synchronous (see bug |
258 | * "async-dns"), so we pretend they are. |
259 | */ |
260 | if (err == cacheFault) |
261 | while (!done) |
262 | continue; |
263 | ret->resolved = TRUE; |
264 | |
265 | if (ret->hostinfo.rtnCode == noErr) |
266 | realhost = ret->hostinfo.cname; |
267 | else |
268 | realhost = ""; |
269 | *canonicalname = smalloc(1+strlen(realhost)); |
270 | strcpy(*canonicalname, realhost); |
271 | return ret; |
272 | } |
273 | |
274 | static pascal void mactcp_lookupdone(struct hostInfo *hi, char *cookie) |
275 | { |
276 | volatile int *donep = (int *)cookie; |
277 | |
278 | *donep = TRUE; |
279 | } |
280 | |
281 | SockAddr sk_nonamelookup(char *host) |
282 | { |
283 | SockAddr ret = smalloc(sizeof(struct SockAddr_tag)); |
284 | |
285 | ret->resolved = FALSE; |
286 | ret->hostinfo.rtnCode = noErr; |
287 | ret->hostname[0] = '\0'; |
288 | strncat(ret->hostname, host, lenof(ret->hostname) - 1); |
289 | return ret; |
290 | } |
291 | |
292 | void sk_getaddr(SockAddr addr, char *buf, int buflen) |
293 | { |
294 | char mybuf[16]; |
295 | OSErr err; |
296 | |
d25f9823 |
297 | if (addr->resolved) { |
298 | /* XXX only return first address */ |
299 | err = AddrToStr(addr->hostinfo.addr[0], mybuf); |
300 | buf[0] = '\0'; |
301 | if (err != noErr) |
302 | strncat(buf, mybuf, buflen - 1); |
303 | } else { |
304 | buf[0] = '\0'; |
305 | strncat(buf, addr->hostname, buflen - 1); |
306 | } |
193194e2 |
307 | } |
308 | |
309 | /* I think "local" here really means "loopback" */ |
310 | |
311 | int sk_hostname_is_local(char *name) |
312 | { |
313 | |
314 | return !strcmp(name, "localhost"); |
315 | } |
316 | |
317 | int sk_address_is_local(SockAddr addr) |
318 | { |
319 | int i; |
320 | |
321 | if (addr->resolved) |
322 | for (i = 0; i < NUM_ALT_ADDRS; i++) |
323 | if (addr->hostinfo.addr[i] & 0xff000000 == 0x7f000000) |
324 | return TRUE; |
325 | return FALSE; |
326 | } |
327 | |
328 | int sk_addrtype(SockAddr addr) |
329 | { |
330 | |
331 | if (addr->resolved) |
332 | return ADDRTYPE_IPV4; |
333 | return ADDRTYPE_NAME; |
334 | } |
335 | |
336 | void sk_addrcopy(SockAddr addr, char *buf) |
337 | { |
338 | |
339 | /* XXX only return first address */ |
340 | memcpy(buf, &addr->hostinfo.addr[0], 4); |
341 | } |
342 | |
343 | void sk_addr_free(SockAddr addr) |
344 | { |
345 | |
346 | sfree(addr); |
347 | } |
348 | |
2beb0fb0 |
349 | static Plug mactcp_plug(Socket sock, Plug p) |
350 | { |
351 | Actual_Socket s = (Actual_Socket) sock; |
352 | Plug ret = s->plug; |
353 | |
354 | if (p) |
355 | s->plug = p; |
356 | return ret; |
357 | } |
358 | |
359 | static void mactcp_flush(Socket s) |
360 | { |
361 | |
362 | fatalbox("sk_tcp_flush"); |
363 | } |
364 | |
0c4b7799 |
365 | Socket sk_register(void *sock, Plug plug) |
366 | { |
367 | |
368 | fatalbox("sk_register"); |
369 | } |
370 | |
5221f554 |
371 | static TCPNotifyUPP mactcp_asr_upp; |
372 | |
193194e2 |
373 | Socket sk_new(SockAddr addr, int port, int privport, int oobinline, |
374 | int nodelay, Plug plug) |
375 | { |
2beb0fb0 |
376 | static struct socket_function_table fn_table = { |
377 | mactcp_plug, |
378 | mactcp_close, |
379 | mactcp_write, |
380 | mactcp_write_oob, |
381 | mactcp_flush, |
382 | mactcp_set_private_ptr, |
383 | mactcp_get_private_ptr, |
384 | mactcp_set_frozen, |
385 | mactcp_socket_error |
386 | }; |
387 | TCPiopb pb; |
388 | UDPiopb upb; |
389 | Actual_Socket ret; |
390 | ip_addr dstaddr; |
391 | size_t buflen; |
392 | |
2beb0fb0 |
393 | /* |
394 | * Create Socket structure. |
395 | */ |
396 | ret = smalloc(sizeof(struct Socket_tag)); |
397 | ret->s = 0; |
398 | ret->fn = &fn_table; |
399 | ret->err = noErr; |
400 | ret->plug = plug; |
401 | bufchain_init(&ret->output_data); |
402 | ret->connected = 0; /* to start with */ |
403 | ret->writable = 0; /* to start with */ |
404 | ret->sending_oob = 0; |
405 | ret->frozen = 0; |
406 | ret->frozen_readable = 0; |
407 | ret->localhost_only = 0; /* unused, but best init anyway */ |
408 | ret->pending_error = 0; |
d25f9823 |
409 | ret->oobinline = oobinline; |
2beb0fb0 |
410 | ret->oobpending = FALSE; |
411 | ret->listener = 0; |
412 | |
413 | dstaddr = addr->hostinfo.addr[0]; /* XXX should try all of them */ |
414 | /* |
415 | * Create a TCP stream. |
416 | * |
417 | * MacTCP requires us to provide it with some buffer memory. Page |
418 | * 31 of the Programmer's Guide says it should be a minimum of |
419 | * 4*MTU+1024. Page 36 says a minimum of 4096 bytes. Assume |
420 | * they're both correct. |
421 | */ |
422 | assert(addr->resolved); |
423 | upb.ioCRefNum = mactcp.refnum; |
424 | upb.csCode = UDPMaxMTUSize; |
425 | upb.csParam.mtu.remoteHost = dstaddr; |
426 | upb.csParam.mtu.userDataPtr = NULL; |
427 | ret->err = PBControlSync((ParmBlkPtr)&upb); |
2beb0fb0 |
428 | if (ret->err != noErr) return (Socket)ret; |
2beb0fb0 |
429 | |
430 | buflen = upb.csParam.mtu.mtuSize * 4 + 1024; |
431 | if (buflen < 4096) buflen = 4096; |
5221f554 |
432 | if (mactcp_asr_upp == NULL) |
433 | mactcp_asr_upp = NewTCPNotifyUPP(&mactcp_asr); |
434 | GetCurrentProcess(&mactcp.self); |
2beb0fb0 |
435 | pb.ioCRefNum = mactcp.refnum; |
436 | pb.csCode = TCPCreate; |
437 | pb.csParam.create.rcvBuff = smalloc(buflen); |
438 | pb.csParam.create.rcvBuffLen = buflen; |
5221f554 |
439 | pb.csParam.create.notifyProc = mactcp_asr_upp; |
2beb0fb0 |
440 | pb.csParam.create.userDataPtr = (Ptr)ret; |
441 | ret->err = PBControlSync((ParmBlkPtr)&pb); |
442 | if (ret->err != noErr) return (Socket)ret; |
443 | ret->s = pb.tcpStream; |
2beb0fb0 |
444 | |
445 | /* |
446 | * Open the connection. |
447 | */ |
448 | pb.ioCRefNum = mactcp.refnum; |
449 | pb.csCode = TCPActiveOpen; |
450 | pb.tcpStream = ret->s; |
451 | pb.csParam.open.validityFlags = 0; |
452 | pb.csParam.open.remoteHost = dstaddr; |
453 | pb.csParam.open.remotePort = port; |
454 | pb.csParam.open.localPort = privport ? 1023 : 0; |
455 | pb.csParam.open.dontFrag = FALSE; |
456 | pb.csParam.open.timeToLive = 0; |
457 | pb.csParam.open.security = 0; |
458 | pb.csParam.open.optionCnt = 0; |
459 | pb.csParam.open.userDataPtr = (Ptr)ret; |
460 | while (1) { |
461 | ret->err = PBControlSync((ParmBlkPtr)&pb); |
462 | if (!privport || ret->err != duplicateSocket) |
463 | break; |
464 | pb.csParam.open.localPort--; |
465 | if (pb.csParam.open.localPort == 0) |
466 | break; |
467 | } |
468 | |
469 | if (ret->err != noErr) return (Socket)ret; |
470 | |
471 | ret->connected = TRUE; |
472 | ret->writable = TRUE; |
473 | |
d25f9823 |
474 | /* Add this to the list of all sockets */ |
475 | ret->next = mactcp.socklist; |
476 | ret->prev = &mactcp.socklist; |
0c4b7799 |
477 | ret->next->prev = &ret->next; |
d25f9823 |
478 | mactcp.socklist = ret; |
479 | |
2beb0fb0 |
480 | return (Socket)ret; |
481 | } |
482 | |
0c4b7799 |
483 | Socket sk_newlistener(char *srcaddr, int port, Plug plug, int local_host_only) |
484 | { |
485 | |
486 | fatalbox("sk_newlistener"); |
487 | } |
488 | |
2beb0fb0 |
489 | static void mactcp_close(Socket sock) |
490 | { |
491 | Actual_Socket s = (Actual_Socket)sock; |
492 | TCPiopb pb; |
493 | |
494 | /* |
495 | * TCPClose is equivalent to shutdown(fd, SHUT_WR), and hence |
496 | * leaves the Rx side open, while TCPAbort seems rather vicious, |
497 | * throwing away Tx data that haven't been ACKed yet. We do both |
498 | * in succession. |
499 | */ |
500 | pb.ioCRefNum = mactcp.refnum; |
501 | pb.csCode = TCPClose; |
502 | pb.tcpStream = s->s; |
503 | pb.csParam.close.validityFlags = 0; |
504 | pb.csParam.close.userDataPtr = (Ptr)s; |
505 | s->err = PBControlSync((ParmBlkPtr)&pb); |
506 | /* Not much we can do about an error anyway. */ |
507 | |
508 | pb.ioCRefNum = mactcp.refnum; |
509 | pb.csCode = TCPAbort; |
510 | pb.tcpStream = s->s; |
511 | pb.csParam.abort.userDataPtr = (Ptr)s; |
512 | s->err = PBControlSync((ParmBlkPtr)&pb); |
513 | /* Even less we can do about an error here. */ |
514 | |
515 | pb.ioCRefNum = mactcp.refnum; |
516 | pb.csCode = TCPRelease; |
517 | pb.tcpStream = s->s; |
518 | pb.csParam.create.userDataPtr = (Ptr)s; |
519 | s->err = PBControlSync((ParmBlkPtr)&pb); |
520 | if (s->err == noErr) |
521 | sfree(pb.csParam.create.rcvBuff); |
d25f9823 |
522 | |
523 | /* Unhitch from list of sockets */ |
524 | *s->prev = s->next; |
525 | if (s->next != NULL) |
526 | s->next->prev = s->prev; |
527 | |
2beb0fb0 |
528 | sfree(s); |
529 | } |
530 | |
531 | static int mactcp_write(Socket sock, char *buf, int len) |
532 | { |
533 | Actual_Socket s = (Actual_Socket) sock; |
534 | wdsEntry wds[2]; |
535 | TCPiopb pb; |
536 | |
2beb0fb0 |
537 | wds[0].length = len; |
538 | wds[0].ptr = buf; |
539 | wds[1].length = 0; |
540 | |
541 | pb.ioCRefNum = mactcp.refnum; |
542 | pb.csCode = TCPSend; |
543 | pb.tcpStream = s->s; |
544 | pb.csParam.send.validityFlags = 0; |
545 | pb.csParam.send.pushFlag = TRUE; /* XXX we want it to return. */ |
546 | pb.csParam.send.urgentFlag = 0; |
547 | pb.csParam.send.wdsPtr = (Ptr)wds; |
548 | pb.csParam.send.userDataPtr = (Ptr)s; |
549 | s->err = PBControlSync((ParmBlkPtr)&pb); |
550 | return 0; |
551 | } |
552 | |
553 | static int mactcp_write_oob(Socket sock, char *buf, int len) |
554 | { |
555 | |
556 | fatalbox("mactcp_write_oob"); |
557 | } |
558 | |
5221f554 |
559 | static pascal void mactcp_asr(StreamPtr str, unsigned short event, Ptr cookie, |
560 | unsigned short termin_reason, |
561 | struct ICMPReport *icmp) |
562 | { |
563 | |
564 | WakeUpProcess(&mactcp.self); |
565 | } |
566 | |
2beb0fb0 |
567 | /* |
d25f9823 |
568 | * Called from our event loop if there's work to do. |
569 | */ |
570 | void mactcp_poll(void) |
571 | { |
572 | Actual_Socket s; |
573 | TCPiopb pb; |
574 | |
575 | for (s = mactcp.socklist; s != NULL; s = s->next) { |
576 | /* XXX above can't handle sockets being deleted. */ |
577 | pb.ioCRefNum = mactcp.refnum; |
578 | pb.csCode = TCPStatus; |
579 | pb.tcpStream = s->s; |
580 | pb.csParam.status.userDataPtr = (Ptr)s; |
581 | s->err = PBControlSync((ParmBlkPtr)&pb); |
582 | if (s->err != noErr) |
583 | continue; |
584 | if (pb.csParam.status.amtUnreadData > 0) |
585 | mactcp_recv(s, pb.csParam.status.amtUnreadData); |
586 | /* Should check connectionState in case remote has closed */ |
587 | } |
588 | } |
589 | |
590 | static void mactcp_recv(Actual_Socket s, size_t len) |
591 | { |
592 | rdsEntry rds[2]; |
593 | TCPiopb pb; |
594 | |
595 | if (s->frozen) return; |
596 | |
597 | while (len > 0) { |
598 | pb.ioCRefNum = mactcp.refnum; |
599 | pb.csCode = TCPNoCopyRcv; |
600 | pb.tcpStream = s->s; |
601 | pb.csParam.receive.commandTimeoutValue = 0; |
602 | pb.csParam.receive.rdsPtr = (Ptr)rds; |
603 | pb.csParam.receive.rdsLength = lenof(rds) - 1; |
604 | pb.csParam.receive.userDataPtr = (Ptr)s; |
605 | s->err = PBControlSync((ParmBlkPtr)&pb); |
606 | if (s->err != noErr) |
607 | return; |
608 | plug_receive(s->plug, 0, rds[0].ptr, rds[0].length); |
609 | len -= rds[0].length; |
610 | pb.csCode = TCPRcvBfrReturn; |
611 | s->err = PBControlSync((ParmBlkPtr)&pb); |
612 | if (s->err != noErr) |
613 | return; |
614 | } |
615 | } |
616 | |
617 | /* |
2beb0fb0 |
618 | * Each socket abstraction contains a `void *' private field in |
619 | * which the client can keep state. |
620 | */ |
621 | static void mactcp_set_private_ptr(Socket sock, void *ptr) |
622 | { |
623 | Actual_Socket s = (Actual_Socket) sock; |
624 | s->private_ptr = ptr; |
625 | } |
193194e2 |
626 | |
2beb0fb0 |
627 | static void *mactcp_get_private_ptr(Socket sock) |
628 | { |
629 | Actual_Socket s = (Actual_Socket) sock; |
630 | return s->private_ptr; |
193194e2 |
631 | } |
632 | |
633 | /* |
634 | * Special error values are returned from sk_namelookup and sk_new |
635 | * if there's a problem. These functions extract an error message, |
636 | * or return NULL if there's no problem. |
637 | */ |
638 | char *sk_addr_error(SockAddr addr) |
639 | { |
640 | static char buf[64]; |
641 | |
642 | switch (addr->hostinfo.rtnCode) { |
643 | case noErr: |
644 | return NULL; |
645 | case nameSyntaxErr: |
646 | return "Name syntax error"; |
647 | case noNameServer: |
648 | return "No name server found"; |
649 | case authNameErr: |
650 | return "Domain name does not exist"; |
651 | case noAnsErr: |
652 | return "No answer from domain name server"; |
653 | case dnrErr: |
654 | return "Domain name server returned an error"; |
655 | case outOfMemory: |
656 | return "Out of memory"; |
657 | default: |
658 | sprintf(buf, "Unknown DNR error %d", addr->hostinfo.rtnCode); |
659 | return buf; |
660 | } |
661 | } |
662 | |
2beb0fb0 |
663 | static char *mactcp_socket_error(Socket sock) |
664 | { |
665 | static char buf[64]; |
666 | Actual_Socket s = (Actual_Socket) sock; |
667 | |
668 | switch (s->err) { |
669 | case noErr: |
670 | return NULL; |
671 | case insufficientResources: |
672 | return "Insufficient resources to open TCP stream"; |
673 | case duplicateSocket: |
674 | return "Duplicate socket"; |
675 | case openFailed: |
676 | return "Connection failed while opening"; |
677 | default: |
678 | sprintf(buf, "Unknown MacTCP error %d", s->err); |
679 | return buf; |
680 | } |
681 | } |
682 | |
683 | static void mactcp_set_frozen(Socket sock, int is_frozen) |
684 | { |
d25f9823 |
685 | Actual_Socket s = (Actual_Socket) sock; |
2beb0fb0 |
686 | |
d25f9823 |
687 | if (s->frozen == is_frozen) |
688 | return; |
689 | s->frozen = is_frozen; |
2beb0fb0 |
690 | } |
193194e2 |
691 | |
692 | /* |
693 | * Bits below here would usually be in dnr.c, shipped with the MacTCP |
694 | * SDK, but its convenient not to require that, and since we assume |
695 | * System 7 we can actually simplify things a lot. |
696 | */ |
697 | |
698 | static OSErr OpenResolver(char *hosts_file) |
699 | { |
700 | short vrefnum; |
701 | long dirid; |
702 | HParamBlockRec pb; |
703 | Str255 filename; |
704 | OSErr err; |
705 | int fd; |
706 | Handle dnr_handle; |
707 | |
708 | if (mactcp.dnr_handle != NULL) |
709 | return noErr; |
710 | |
711 | err = FindFolder(kOnSystemDisk, kControlPanelFolderType, FALSE, &vrefnum, |
712 | &dirid); |
713 | if (err != noErr) return err; |
714 | |
715 | /* |
716 | * Might be better to use PBCatSearch here, but it's not always |
717 | * available. |
718 | */ |
719 | pb.fileParam.ioCompletion = NULL; |
720 | pb.fileParam.ioNamePtr = filename; |
721 | pb.fileParam.ioVRefNum = vrefnum; |
722 | pb.fileParam.ioFDirIndex = 1; |
723 | pb.fileParam.ioDirID = dirid; |
724 | fd = -1; |
725 | |
2beb0fb0 |
726 | while (PBHGetFInfoSync(&pb) == noErr) { |
193194e2 |
727 | if (pb.fileParam.ioFlFndrInfo.fdType == 'cdev' && |
728 | pb.fileParam.ioFlFndrInfo.fdCreator == 'ztcp') { |
729 | fd = HOpenResFile(vrefnum, dirid, filename, fsRdPerm); |
730 | if (fd == -1) continue; |
731 | dnr_handle = Get1IndResource('dnrp', 1); |
732 | if (dnr_handle != NULL) |
733 | break; |
734 | CloseResFile(fd); |
735 | fd = -1; |
736 | } |
737 | pb.fileParam.ioDirID = dirid; |
738 | pb.fileParam.ioFDirIndex++; |
739 | } |
740 | if (fd == -1) |
741 | return fnfErr; |
742 | |
743 | DetachResource(dnr_handle); |
744 | CloseResFile(fd); |
745 | |
746 | MoveHHi(dnr_handle); |
747 | HLock(dnr_handle); |
748 | |
749 | err = InvokeOpenResolverUPP(OPENRESOLVER, hosts_file, |
750 | (OpenResolverUPP)*dnr_handle); |
751 | if (err != noErr) { |
752 | HUnlock(dnr_handle); |
753 | DisposeHandle(dnr_handle); |
754 | return err; |
755 | } |
756 | |
757 | mactcp.dnr_handle = dnr_handle; |
758 | return noErr; |
759 | } |
760 | |
761 | OSErr CloseResolver(void) |
762 | { |
763 | Handle dnr_handle = mactcp.dnr_handle; |
764 | OSErr err; |
765 | |
766 | if (mactcp.dnr_handle == NULL) |
767 | return notOpenErr; |
768 | |
769 | err = InvokeCloseResolverUPP(CLOSERESOLVER, |
770 | (CloseResolverUPP)*mactcp.dnr_handle); |
771 | if (err != noErr) |
772 | return err; |
773 | |
774 | mactcp.dnr_handle = NULL; |
775 | HUnlock(dnr_handle); |
776 | DisposeHandle(dnr_handle); |
777 | return noErr; |
778 | } |
779 | |
0c4b7799 |
780 | /* MacTCP doesn't have a services database. */ |
781 | int net_service_lookup(char *service) |
782 | { |
783 | |
784 | return 0; |
785 | } |
786 | |
787 | |
193194e2 |
788 | /* |
789 | * Local Variables: |
790 | * c-file-style: "simon" |
791 | * End: |
792 | */ |