12dc4ec0 |
1 | /* |
2 | * PLink - a command-line (stdin/stdout) variant of PuTTY. |
3 | */ |
4 | |
4d331a77 |
5 | #ifndef AUTO_WINSOCK |
12dc4ec0 |
6 | #include <winsock2.h> |
4d331a77 |
7 | #endif |
12dc4ec0 |
8 | #include <windows.h> |
9 | #include <stdio.h> |
10 | #include <stdarg.h> |
11 | |
12 | #define PUTTY_DO_GLOBALS /* actually _define_ globals */ |
13 | #include "putty.h" |
a9422f39 |
14 | #include "storage.h" |
8df7a775 |
15 | #include "tree234.h" |
12dc4ec0 |
16 | |
17 | void fatalbox (char *p, ...) { |
18 | va_list ap; |
19 | fprintf(stderr, "FATAL ERROR: ", p); |
20 | va_start(ap, p); |
21 | vfprintf(stderr, p, ap); |
22 | va_end(ap); |
23 | fputc('\n', stderr); |
24 | WSACleanup(); |
25 | exit(1); |
26 | } |
8d5de777 |
27 | void connection_fatal (char *p, ...) { |
28 | va_list ap; |
29 | fprintf(stderr, "FATAL ERROR: ", p); |
30 | va_start(ap, p); |
31 | vfprintf(stderr, p, ap); |
32 | va_end(ap); |
33 | fputc('\n', stderr); |
34 | WSACleanup(); |
35 | exit(1); |
36 | } |
12dc4ec0 |
37 | |
d8426c54 |
38 | static char *password = NULL; |
39 | |
a9422f39 |
40 | void logevent(char *string) { } |
41 | |
42 | void verify_ssh_host_key(char *host, int port, char *keytype, |
43 | char *keystr, char *fingerprint) { |
44 | int ret; |
fcbb94d3 |
45 | HANDLE hin; |
46 | DWORD savemode, i; |
a9422f39 |
47 | |
48 | static const char absentmsg[] = |
49 | "The server's host key is not cached in the registry. You\n" |
50 | "have no guarantee that the server is the computer you\n" |
51 | "think it is.\n" |
52 | "The server's key fingerprint is:\n" |
53 | "%s\n" |
54 | "If you trust this host, enter \"y\" to add the key to\n" |
55 | "PuTTY's cache and carry on connecting.\n" |
56 | "If you do not trust this host, enter \"n\" to abandon the\n" |
57 | "connection.\n" |
58 | "Continue connecting? (y/n) "; |
59 | |
60 | static const char wrongmsg[] = |
61 | "WARNING - POTENTIAL SECURITY BREACH!\n" |
62 | "The server's host key does not match the one PuTTY has\n" |
63 | "cached in the registry. This means that either the\n" |
64 | "server administrator has changed the host key, or you\n" |
65 | "have actually connected to another computer pretending\n" |
66 | "to be the server.\n" |
67 | "The new key fingerprint is:\n" |
68 | "%s\n" |
69 | "If you were expecting this change and trust the new key,\n" |
70 | "enter \"y\" to update PuTTY's cache and continue connecting.\n" |
71 | "If you want to carry on connecting but without updating\n" |
72 | "the cache, enter \"n\".\n" |
73 | "If you want to abandon the connection completely, press\n" |
74 | "Return to cancel. Pressing Return is the ONLY guaranteed\n" |
75 | "safe choice.\n" |
76 | "Update cached key? (y/n, Return cancels connection) "; |
77 | |
78 | static const char abandoned[] = "Connection abandoned.\n"; |
79 | |
80 | char line[32]; |
81 | |
82 | /* |
83 | * Verify the key against the registry. |
84 | */ |
85 | ret = verify_host_key(host, port, keytype, keystr); |
86 | |
87 | if (ret == 0) /* success - key matched OK */ |
88 | return; |
fcbb94d3 |
89 | |
90 | if (ret == 2) /* key was different */ |
a9422f39 |
91 | fprintf(stderr, wrongmsg, fingerprint); |
fcbb94d3 |
92 | if (ret == 1) /* key was absent */ |
93 | fprintf(stderr, absentmsg, fingerprint); |
94 | |
95 | hin = GetStdHandle(STD_INPUT_HANDLE); |
96 | GetConsoleMode(hin, &savemode); |
97 | SetConsoleMode(hin, (savemode | ENABLE_ECHO_INPUT | |
98 | ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT)); |
99 | ReadFile(hin, line, sizeof(line)-1, &i, NULL); |
100 | SetConsoleMode(hin, savemode); |
101 | |
102 | if (ret == 2) { /* key was different */ |
103 | if (line[0] != '\0' && line[0] != '\r' && line[0] != '\n') { |
a9422f39 |
104 | if (line[0] == 'y' || line[0] == 'Y') |
105 | store_host_key(host, port, keytype, keystr); |
106 | } else { |
107 | fprintf(stderr, abandoned); |
108 | exit(0); |
109 | } |
110 | } |
111 | if (ret == 1) { /* key was absent */ |
fcbb94d3 |
112 | if (line[0] == 'y' || line[0] == 'Y') |
a9422f39 |
113 | store_host_key(host, port, keytype, keystr); |
114 | else { |
115 | fprintf(stderr, abandoned); |
116 | exit(0); |
117 | } |
118 | } |
119 | } |
989b10e9 |
120 | |
fe50e814 |
121 | HANDLE outhandle, errhandle; |
6f34e365 |
122 | DWORD orig_console_mode; |
123 | |
8df7a775 |
124 | WSAEVENT netevent; |
125 | |
6f34e365 |
126 | void begin_session(void) { |
127 | if (!cfg.ldisc_term) |
128 | SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), ENABLE_PROCESSED_INPUT); |
129 | else |
130 | SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), orig_console_mode); |
131 | } |
12dc4ec0 |
132 | |
fe50e814 |
133 | void from_backend(int is_stderr, char *data, int len) { |
134 | int pos; |
12dc4ec0 |
135 | DWORD ret; |
fe50e814 |
136 | HANDLE h = (is_stderr ? errhandle : outhandle); |
137 | |
138 | pos = 0; |
139 | while (pos < len) { |
140 | if (!WriteFile(h, data+pos, len-pos, &ret, NULL)) |
12dc4ec0 |
141 | return; /* give up in panic */ |
fe50e814 |
142 | pos += ret; |
12dc4ec0 |
143 | } |
12dc4ec0 |
144 | } |
145 | |
146 | struct input_data { |
147 | DWORD len; |
148 | char buffer[4096]; |
8df7a775 |
149 | HANDLE event, eventback; |
12dc4ec0 |
150 | }; |
151 | |
67779be7 |
152 | static int get_password(const char *prompt, char *str, int maxlen) |
153 | { |
154 | HANDLE hin, hout; |
155 | DWORD savemode, i; |
156 | |
67779be7 |
157 | if (password) { |
158 | static int tried_once = 0; |
159 | |
160 | if (tried_once) { |
161 | return 0; |
162 | } else { |
163 | strncpy(str, password, maxlen); |
164 | str[maxlen-1] = '\0'; |
165 | tried_once = 1; |
166 | return 1; |
167 | } |
168 | } |
67779be7 |
169 | |
170 | hin = GetStdHandle(STD_INPUT_HANDLE); |
171 | hout = GetStdHandle(STD_OUTPUT_HANDLE); |
172 | if (hin == INVALID_HANDLE_VALUE || hout == INVALID_HANDLE_VALUE) { |
173 | fprintf(stderr, "Cannot get standard input/output handles"); |
174 | return 0; |
175 | } |
176 | |
177 | GetConsoleMode(hin, &savemode); |
178 | SetConsoleMode(hin, (savemode & (~ENABLE_ECHO_INPUT)) | |
179 | ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT); |
180 | |
181 | WriteFile(hout, prompt, strlen(prompt), &i, NULL); |
182 | ReadFile(hin, str, maxlen-1, &i, NULL); |
183 | |
184 | SetConsoleMode(hin, savemode); |
185 | |
186 | if ((int)i > maxlen) i = maxlen-1; else i = i - 2; |
187 | str[i] = '\0'; |
188 | |
189 | WriteFile(hout, "\r\n", 2, &i, NULL); |
190 | |
191 | return 1; |
192 | } |
193 | |
6d2d5e8d |
194 | static DWORD WINAPI stdin_read_thread(void *param) { |
12dc4ec0 |
195 | struct input_data *idata = (struct input_data *)param; |
196 | HANDLE inhandle; |
197 | |
198 | inhandle = GetStdHandle(STD_INPUT_HANDLE); |
199 | |
200 | while (ReadFile(inhandle, idata->buffer, sizeof(idata->buffer), |
8df7a775 |
201 | &idata->len, NULL) && idata->len > 0) { |
12dc4ec0 |
202 | SetEvent(idata->event); |
8df7a775 |
203 | WaitForSingleObject(idata->eventback, INFINITE); |
12dc4ec0 |
204 | } |
205 | |
206 | idata->len = 0; |
207 | SetEvent(idata->event); |
208 | |
209 | return 0; |
210 | } |
211 | |
d8426c54 |
212 | /* |
213 | * Short description of parameters. |
214 | */ |
215 | static void usage(void) |
216 | { |
217 | printf("PuTTY Link: command-line connection utility\n"); |
218 | printf("%s\n", ver); |
219 | printf("Usage: plink [options] [user@]host [command]\n"); |
220 | printf("Options:\n"); |
221 | printf(" -v show verbose messages\n"); |
222 | printf(" -ssh force use of ssh protocol\n"); |
223 | printf(" -P port connect to specified port\n"); |
224 | printf(" -pw passw login with specified password\n"); |
225 | exit(1); |
226 | } |
227 | |
8df7a775 |
228 | char *do_select(SOCKET skt, int startup) { |
229 | int events; |
230 | if (startup) { |
231 | events = FD_READ | FD_WRITE | FD_OOB | FD_CLOSE; |
232 | } else { |
233 | events = 0; |
234 | } |
235 | if (WSAEventSelect (skt, netevent, events) == SOCKET_ERROR) { |
236 | switch (WSAGetLastError()) { |
237 | case WSAENETDOWN: return "Network is down"; |
238 | default: return "WSAAsyncSelect(): unknown error"; |
239 | } |
240 | } |
241 | return NULL; |
242 | } |
243 | |
12dc4ec0 |
244 | int main(int argc, char **argv) { |
245 | WSADATA wsadata; |
246 | WORD winsock_ver; |
8df7a775 |
247 | WSAEVENT stdinevent; |
12dc4ec0 |
248 | HANDLE handles[2]; |
12dc4ec0 |
249 | DWORD threadid; |
250 | struct input_data idata; |
251 | int sending; |
d8426c54 |
252 | int portnumber = -1; |
8df7a775 |
253 | SOCKET *sklist; |
254 | int skcount, sksize; |
255 | int connopen; |
12dc4ec0 |
256 | |
67779be7 |
257 | ssh_get_password = get_password; |
258 | |
8df7a775 |
259 | sklist = NULL; skcount = sksize = 0; |
260 | |
67779be7 |
261 | flags = FLAG_STDERR; |
12dc4ec0 |
262 | /* |
263 | * Process the command line. |
264 | */ |
a9422f39 |
265 | do_defaults(NULL, &cfg); |
e7a7383f |
266 | default_protocol = cfg.protocol; |
267 | default_port = cfg.port; |
8cb9c947 |
268 | { |
269 | /* |
270 | * Override the default protocol if PLINK_PROTOCOL is set. |
271 | */ |
272 | char *p = getenv("PLINK_PROTOCOL"); |
273 | int i; |
274 | if (p) { |
275 | for (i = 0; backends[i].backend != NULL; i++) { |
276 | if (!strcmp(backends[i].name, p)) { |
277 | default_protocol = cfg.protocol = backends[i].protocol; |
278 | default_port = cfg.port = backends[i].backend->default_port; |
279 | break; |
280 | } |
281 | } |
282 | } |
283 | } |
12dc4ec0 |
284 | while (--argc) { |
285 | char *p = *++argv; |
286 | if (*p == '-') { |
287 | if (!strcmp(p, "-ssh")) { |
288 | default_protocol = cfg.protocol = PROT_SSH; |
289 | default_port = cfg.port = 22; |
9d33ebdd |
290 | } else if (!strcmp(p, "-telnet")) { |
291 | default_protocol = cfg.protocol = PROT_TELNET; |
292 | default_port = cfg.port = 23; |
293 | } else if (!strcmp(p, "-raw")) { |
294 | default_protocol = cfg.protocol = PROT_RAW; |
67779be7 |
295 | } else if (!strcmp(p, "-v")) { |
296 | flags |= FLAG_VERBOSE; |
12dc4ec0 |
297 | } else if (!strcmp(p, "-log")) { |
298 | logfile = "putty.log"; |
d8426c54 |
299 | } else if (!strcmp(p, "-pw") && argc > 1) { |
300 | --argc, password = *++argv; |
e7a7383f |
301 | } else if (!strcmp(p, "-l") && argc > 1) { |
302 | char *username; |
303 | --argc, username = *++argv; |
304 | strncpy(cfg.username, username, sizeof(cfg.username)); |
305 | cfg.username[sizeof(cfg.username)-1] = '\0'; |
d8426c54 |
306 | } else if (!strcmp(p, "-P") && argc > 1) { |
307 | --argc, portnumber = atoi(*++argv); |
308 | } |
12dc4ec0 |
309 | } else if (*p) { |
310 | if (!*cfg.host) { |
311 | char *q = p; |
312 | /* |
313 | * If the hostname starts with "telnet:", set the |
314 | * protocol to Telnet and process the string as a |
315 | * Telnet URL. |
316 | */ |
317 | if (!strncmp(q, "telnet:", 7)) { |
318 | char c; |
319 | |
320 | q += 7; |
321 | if (q[0] == '/' && q[1] == '/') |
322 | q += 2; |
323 | cfg.protocol = PROT_TELNET; |
324 | p = q; |
325 | while (*p && *p != ':' && *p != '/') p++; |
326 | c = *p; |
327 | if (*p) |
328 | *p++ = '\0'; |
329 | if (c == ':') |
330 | cfg.port = atoi(p); |
331 | else |
332 | cfg.port = -1; |
333 | strncpy (cfg.host, q, sizeof(cfg.host)-1); |
334 | cfg.host[sizeof(cfg.host)-1] = '\0'; |
335 | } else { |
9d33ebdd |
336 | char *r; |
337 | /* |
338 | * Before we process the [user@]host string, we |
339 | * first check for the presence of a protocol |
340 | * prefix (a protocol name followed by ","). |
341 | */ |
342 | r = strchr(p, ','); |
343 | if (r) { |
344 | int i, j; |
345 | for (i = 0; backends[i].backend != NULL; i++) { |
346 | j = strlen(backends[i].name); |
347 | if (j == r-p && |
348 | !memcmp(backends[i].name, p, j)) { |
349 | default_protocol = cfg.protocol = backends[i].protocol; |
350 | portnumber = backends[i].backend->default_port; |
351 | p = r+1; |
352 | break; |
353 | } |
354 | } |
355 | } |
356 | |
12dc4ec0 |
357 | /* |
358 | * Three cases. Either (a) there's a nonzero |
359 | * length string followed by an @, in which |
360 | * case that's user and the remainder is host. |
361 | * Or (b) there's only one string, not counting |
362 | * a potential initial @, and it exists in the |
363 | * saved-sessions database. Or (c) only one |
364 | * string and it _doesn't_ exist in the |
365 | * database. |
366 | */ |
9d33ebdd |
367 | r = strrchr(p, '@'); |
12dc4ec0 |
368 | if (r == p) p++, r = NULL; /* discount initial @ */ |
369 | if (r == NULL) { |
370 | /* |
371 | * One string. |
372 | */ |
a9422f39 |
373 | do_defaults (p, &cfg); |
12dc4ec0 |
374 | if (cfg.host[0] == '\0') { |
375 | /* No settings for this host; use defaults */ |
376 | strncpy(cfg.host, p, sizeof(cfg.host)-1); |
377 | cfg.host[sizeof(cfg.host)-1] = '\0'; |
378 | cfg.port = 22; |
379 | } |
380 | } else { |
381 | *r++ = '\0'; |
382 | strncpy(cfg.username, p, sizeof(cfg.username)-1); |
383 | cfg.username[sizeof(cfg.username)-1] = '\0'; |
384 | strncpy(cfg.host, r, sizeof(cfg.host)-1); |
385 | cfg.host[sizeof(cfg.host)-1] = '\0'; |
386 | cfg.port = 22; |
387 | } |
388 | } |
389 | } else { |
390 | int len = sizeof(cfg.remote_cmd) - 1; |
391 | char *cp = cfg.remote_cmd; |
392 | int len2; |
393 | |
394 | strncpy(cp, p, len); cp[len] = '\0'; |
395 | len2 = strlen(cp); len -= len2; cp += len2; |
396 | while (--argc) { |
397 | if (len > 0) |
398 | len--, *cp++ = ' '; |
399 | strncpy(cp, *++argv, len); cp[len] = '\0'; |
400 | len2 = strlen(cp); len -= len2; cp += len2; |
401 | } |
402 | cfg.nopty = TRUE; /* command => no terminal */ |
403 | cfg.ldisc_term = TRUE; /* use stdin like a line buffer */ |
404 | break; /* done with cmdline */ |
405 | } |
406 | } |
407 | } |
408 | |
d8426c54 |
409 | if (!*cfg.host) { |
410 | usage(); |
411 | } |
d8426c54 |
412 | |
67779be7 |
413 | if (!*cfg.remote_cmd) |
414 | flags |= FLAG_INTERACTIVE; |
415 | |
12dc4ec0 |
416 | /* |
417 | * Select protocol. This is farmed out into a table in a |
418 | * separate file to enable an ssh-free variant. |
419 | */ |
420 | { |
421 | int i; |
422 | back = NULL; |
423 | for (i = 0; backends[i].backend != NULL; i++) |
424 | if (backends[i].protocol == cfg.protocol) { |
425 | back = backends[i].backend; |
426 | break; |
427 | } |
428 | if (back == NULL) { |
429 | fprintf(stderr, "Internal fault: Unsupported protocol found\n"); |
430 | return 1; |
431 | } |
432 | } |
433 | |
434 | /* |
8cb9c947 |
435 | * Select port. |
436 | */ |
437 | if (portnumber != -1) |
438 | cfg.port = portnumber; |
439 | |
440 | /* |
12dc4ec0 |
441 | * Initialise WinSock. |
442 | */ |
443 | winsock_ver = MAKEWORD(2, 0); |
444 | if (WSAStartup(winsock_ver, &wsadata)) { |
445 | MessageBox(NULL, "Unable to initialise WinSock", "WinSock Error", |
446 | MB_OK | MB_ICONEXCLAMATION); |
447 | return 1; |
448 | } |
449 | if (LOBYTE(wsadata.wVersion) != 2 || HIBYTE(wsadata.wVersion) != 0) { |
450 | MessageBox(NULL, "WinSock version is incompatible with 2.0", |
451 | "WinSock Error", MB_OK | MB_ICONEXCLAMATION); |
452 | WSACleanup(); |
453 | return 1; |
454 | } |
8df7a775 |
455 | sk_init(); |
12dc4ec0 |
456 | |
457 | /* |
458 | * Start up the connection. |
459 | */ |
8df7a775 |
460 | netevent = CreateEvent(NULL, FALSE, FALSE, NULL); |
12dc4ec0 |
461 | { |
462 | char *error; |
463 | char *realhost; |
464 | |
8df7a775 |
465 | error = back->init (cfg.host, cfg.port, &realhost); |
12dc4ec0 |
466 | if (error) { |
467 | fprintf(stderr, "Unable to open connection:\n%s", error); |
468 | return 1; |
469 | } |
470 | } |
8df7a775 |
471 | connopen = 1; |
12dc4ec0 |
472 | |
12dc4ec0 |
473 | stdinevent = CreateEvent(NULL, FALSE, FALSE, NULL); |
474 | |
6f34e365 |
475 | GetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), &orig_console_mode); |
476 | SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), ENABLE_PROCESSED_INPUT); |
12dc4ec0 |
477 | outhandle = GetStdHandle(STD_OUTPUT_HANDLE); |
fe50e814 |
478 | errhandle = GetStdHandle(STD_ERROR_HANDLE); |
12dc4ec0 |
479 | |
480 | /* |
12dc4ec0 |
481 | * Turn off ECHO and LINE input modes. We don't care if this |
482 | * call fails, because we know we aren't necessarily running in |
483 | * a console. |
484 | */ |
12dc4ec0 |
485 | handles[0] = netevent; |
486 | handles[1] = stdinevent; |
487 | sending = FALSE; |
488 | while (1) { |
489 | int n; |
8cb9c947 |
490 | |
491 | if (!sending && back->sendok()) { |
492 | /* |
493 | * Create a separate thread to read from stdin. This is |
494 | * a total pain, but I can't find another way to do it: |
495 | * |
496 | * - an overlapped ReadFile or ReadFileEx just doesn't |
497 | * happen; we get failure from ReadFileEx, and |
498 | * ReadFile blocks despite being given an OVERLAPPED |
499 | * structure. Perhaps we can't do overlapped reads |
500 | * on consoles. WHY THE HELL NOT? |
501 | * |
502 | * - WaitForMultipleObjects(netevent, console) doesn't |
503 | * work, because it signals the console when |
504 | * _anything_ happens, including mouse motions and |
505 | * other things that don't cause data to be readable |
506 | * - so we're back to ReadFile blocking. |
507 | */ |
508 | idata.event = stdinevent; |
8df7a775 |
509 | idata.eventback = CreateEvent(NULL, FALSE, FALSE, NULL); |
8cb9c947 |
510 | if (!CreateThread(NULL, 0, stdin_read_thread, |
511 | &idata, 0, &threadid)) { |
512 | fprintf(stderr, "Unable to create second thread\n"); |
513 | exit(1); |
514 | } |
515 | sending = TRUE; |
516 | } |
517 | |
12dc4ec0 |
518 | n = WaitForMultipleObjects(2, handles, FALSE, INFINITE); |
519 | if (n == 0) { |
520 | WSANETWORKEVENTS things; |
8df7a775 |
521 | enum234 e; |
522 | SOCKET socket; |
523 | extern SOCKET first_socket(enum234 *), next_socket(enum234 *); |
524 | extern int select_result(WPARAM, LPARAM); |
525 | int i; |
526 | |
527 | /* |
528 | * We must not call select_result() for any socket |
529 | * until we have finished enumerating within the tree. |
530 | * This is because select_result() may close the socket |
531 | * and modify the tree. |
532 | */ |
533 | /* Count the active sockets. */ |
534 | i = 0; |
535 | for (socket = first_socket(&e); socket != INVALID_SOCKET; |
536 | socket = next_socket(&e)) |
537 | i++; |
538 | |
539 | /* Expand the buffer if necessary. */ |
540 | if (i > sksize) { |
541 | sksize = i+16; |
542 | sklist = srealloc(sklist, sksize * sizeof(*sklist)); |
543 | } |
544 | |
545 | /* Retrieve the sockets into sklist. */ |
546 | skcount = 0; |
547 | for (socket = first_socket(&e); socket != INVALID_SOCKET; |
548 | socket = next_socket(&e)) { |
549 | sklist[skcount++] = socket; |
12dc4ec0 |
550 | } |
8df7a775 |
551 | |
552 | /* Now we're done enumerating; go through the list. */ |
553 | for (i = 0; i < skcount; i++) { |
554 | WPARAM wp; |
555 | socket = sklist[i]; |
556 | wp = (WPARAM)socket; |
557 | if (!WSAEnumNetworkEvents(socket, netevent, &things)) { |
558 | if (things.lNetworkEvents & FD_READ) |
559 | connopen &= select_result(wp, (LPARAM)FD_READ); |
560 | if (things.lNetworkEvents & FD_CLOSE) |
561 | connopen &= select_result(wp, (LPARAM)FD_CLOSE); |
562 | if (things.lNetworkEvents & FD_OOB) |
563 | connopen &= select_result(wp, (LPARAM)FD_OOB); |
564 | if (things.lNetworkEvents & FD_WRITE) |
565 | connopen &= select_result(wp, (LPARAM)FD_WRITE); |
566 | } |
567 | } |
12dc4ec0 |
568 | } else if (n == 1) { |
569 | if (idata.len > 0) { |
570 | back->send(idata.buffer, idata.len); |
571 | } else { |
572 | back->special(TS_EOF); |
573 | } |
8df7a775 |
574 | SetEvent(idata.eventback); |
12dc4ec0 |
575 | } |
8df7a775 |
576 | if (!connopen || back->socket() == NULL) |
cf6e59d6 |
577 | break; /* we closed the connection */ |
12dc4ec0 |
578 | } |
579 | WSACleanup(); |
580 | return 0; |
581 | } |