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> |
49bad831 |
10 | #include <stdlib.h> |
12dc4ec0 |
11 | #include <stdarg.h> |
12 | |
32874aea |
13 | #define PUTTY_DO_GLOBALS /* actually _define_ globals */ |
12dc4ec0 |
14 | #include "putty.h" |
a9422f39 |
15 | #include "storage.h" |
8df7a775 |
16 | #include "tree234.h" |
12dc4ec0 |
17 | |
32874aea |
18 | void fatalbox(char *p, ...) |
19 | { |
12dc4ec0 |
20 | va_list ap; |
49bad831 |
21 | fprintf(stderr, "FATAL ERROR: "); |
12dc4ec0 |
22 | va_start(ap, p); |
23 | vfprintf(stderr, p, ap); |
24 | va_end(ap); |
25 | fputc('\n', stderr); |
26 | WSACleanup(); |
27 | exit(1); |
28 | } |
32874aea |
29 | void connection_fatal(char *p, ...) |
30 | { |
8d5de777 |
31 | va_list ap; |
49bad831 |
32 | fprintf(stderr, "FATAL ERROR: "); |
8d5de777 |
33 | va_start(ap, p); |
34 | vfprintf(stderr, p, ap); |
35 | va_end(ap); |
36 | fputc('\n', stderr); |
37 | WSACleanup(); |
38 | exit(1); |
39 | } |
12dc4ec0 |
40 | |
d8426c54 |
41 | static char *password = NULL; |
42 | |
32874aea |
43 | void logevent(char *string) |
44 | { |
45 | } |
a9422f39 |
46 | |
47 | void verify_ssh_host_key(char *host, int port, char *keytype, |
32874aea |
48 | char *keystr, char *fingerprint) |
49 | { |
a9422f39 |
50 | int ret; |
fcbb94d3 |
51 | HANDLE hin; |
52 | DWORD savemode, i; |
a9422f39 |
53 | |
54 | static const char absentmsg[] = |
32874aea |
55 | "The server's host key is not cached in the registry. You\n" |
56 | "have no guarantee that the server is the computer you\n" |
57 | "think it is.\n" |
58 | "The server's key fingerprint is:\n" |
59 | "%s\n" |
60 | "If you trust this host, enter \"y\" to add the key to\n" |
61 | "PuTTY's cache and carry on connecting.\n" |
62 | "If you do not trust this host, enter \"n\" to abandon the\n" |
63 | "connection.\n" "Continue connecting? (y/n) "; |
a9422f39 |
64 | |
65 | static const char wrongmsg[] = |
32874aea |
66 | "WARNING - POTENTIAL SECURITY BREACH!\n" |
67 | "The server's host key does not match the one PuTTY has\n" |
68 | "cached in the registry. This means that either the\n" |
69 | "server administrator has changed the host key, or you\n" |
70 | "have actually connected to another computer pretending\n" |
71 | "to be the server.\n" |
72 | "The new key fingerprint is:\n" |
73 | "%s\n" |
74 | "If you were expecting this change and trust the new key,\n" |
75 | "enter \"y\" to update PuTTY's cache and continue connecting.\n" |
76 | "If you want to carry on connecting but without updating\n" |
77 | "the cache, enter \"n\".\n" |
78 | "If you want to abandon the connection completely, press\n" |
79 | "Return to cancel. Pressing Return is the ONLY guaranteed\n" |
80 | "safe choice.\n" |
81 | "Update cached key? (y/n, Return cancels connection) "; |
a9422f39 |
82 | |
83 | static const char abandoned[] = "Connection abandoned.\n"; |
84 | |
85 | char line[32]; |
86 | |
87 | /* |
88 | * Verify the key against the registry. |
89 | */ |
90 | ret = verify_host_key(host, port, keytype, keystr); |
91 | |
32874aea |
92 | if (ret == 0) /* success - key matched OK */ |
93 | return; |
fcbb94d3 |
94 | |
b4453f49 |
95 | if (ret == 2) { /* key was different */ |
32874aea |
96 | fprintf(stderr, wrongmsg, fingerprint); |
b4453f49 |
97 | fflush(stderr); |
98 | } |
99 | if (ret == 1) { /* key was absent */ |
32874aea |
100 | fprintf(stderr, absentmsg, fingerprint); |
b4453f49 |
101 | fflush(stderr); |
102 | } |
fcbb94d3 |
103 | |
104 | hin = GetStdHandle(STD_INPUT_HANDLE); |
105 | GetConsoleMode(hin, &savemode); |
106 | SetConsoleMode(hin, (savemode | ENABLE_ECHO_INPUT | |
32874aea |
107 | ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT)); |
108 | ReadFile(hin, line, sizeof(line) - 1, &i, NULL); |
fcbb94d3 |
109 | SetConsoleMode(hin, savemode); |
110 | |
32874aea |
111 | if (ret == 2) { /* key was different */ |
112 | if (line[0] != '\0' && line[0] != '\r' && line[0] != '\n') { |
113 | if (line[0] == 'y' || line[0] == 'Y') |
114 | store_host_key(host, port, keytype, keystr); |
115 | } else { |
116 | fprintf(stderr, abandoned); |
117 | exit(0); |
118 | } |
a9422f39 |
119 | } |
32874aea |
120 | if (ret == 1) { /* key was absent */ |
121 | if (line[0] == 'y' || line[0] == 'Y') |
122 | store_host_key(host, port, keytype, keystr); |
123 | else { |
124 | fprintf(stderr, abandoned); |
125 | exit(0); |
126 | } |
a9422f39 |
127 | } |
128 | } |
989b10e9 |
129 | |
0965bee0 |
130 | HANDLE inhandle, outhandle, errhandle; |
6f34e365 |
131 | DWORD orig_console_mode; |
132 | |
8df7a775 |
133 | WSAEVENT netevent; |
134 | |
32874aea |
135 | void from_backend(int is_stderr, char *data, int len) |
136 | { |
fe50e814 |
137 | int pos; |
12dc4ec0 |
138 | DWORD ret; |
fe50e814 |
139 | HANDLE h = (is_stderr ? errhandle : outhandle); |
140 | |
141 | pos = 0; |
142 | while (pos < len) { |
32874aea |
143 | if (!WriteFile(h, data + pos, len - pos, &ret, NULL)) |
144 | return; /* give up in panic */ |
145 | pos += ret; |
12dc4ec0 |
146 | } |
12dc4ec0 |
147 | } |
148 | |
32874aea |
149 | int term_ldisc(int mode) |
150 | { |
151 | return FALSE; |
152 | } |
153 | void ldisc_update(int echo, int edit) |
154 | { |
0965bee0 |
155 | /* Update stdin read mode to reflect changes in line discipline. */ |
156 | DWORD mode; |
157 | |
158 | mode = ENABLE_PROCESSED_INPUT; |
159 | if (echo) |
32874aea |
160 | mode = mode | ENABLE_ECHO_INPUT; |
0965bee0 |
161 | else |
32874aea |
162 | mode = mode & ~ENABLE_ECHO_INPUT; |
0965bee0 |
163 | if (edit) |
32874aea |
164 | mode = mode | ENABLE_LINE_INPUT; |
0965bee0 |
165 | else |
32874aea |
166 | mode = mode & ~ENABLE_LINE_INPUT; |
0965bee0 |
167 | SetConsoleMode(inhandle, mode); |
168 | } |
169 | |
12dc4ec0 |
170 | struct input_data { |
171 | DWORD len; |
172 | char buffer[4096]; |
8df7a775 |
173 | HANDLE event, eventback; |
12dc4ec0 |
174 | }; |
175 | |
fa17a66e |
176 | static int get_line(const char *prompt, char *str, int maxlen, int is_pw) |
67779be7 |
177 | { |
178 | HANDLE hin, hout; |
fa17a66e |
179 | DWORD savemode, newmode, i; |
67779be7 |
180 | |
fa17a66e |
181 | if (is_pw && password) { |
32874aea |
182 | static int tried_once = 0; |
183 | |
184 | if (tried_once) { |
185 | return 0; |
186 | } else { |
187 | strncpy(str, password, maxlen); |
188 | str[maxlen - 1] = '\0'; |
189 | tried_once = 1; |
190 | return 1; |
191 | } |
67779be7 |
192 | } |
67779be7 |
193 | |
194 | hin = GetStdHandle(STD_INPUT_HANDLE); |
195 | hout = GetStdHandle(STD_OUTPUT_HANDLE); |
196 | if (hin == INVALID_HANDLE_VALUE || hout == INVALID_HANDLE_VALUE) { |
32874aea |
197 | fprintf(stderr, "Cannot get standard input/output handles"); |
198 | return 0; |
67779be7 |
199 | } |
200 | |
201 | GetConsoleMode(hin, &savemode); |
fa17a66e |
202 | newmode = savemode | ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT; |
203 | if (is_pw) |
32874aea |
204 | newmode &= ~ENABLE_ECHO_INPUT; |
fa17a66e |
205 | else |
32874aea |
206 | newmode |= ENABLE_ECHO_INPUT; |
fa17a66e |
207 | SetConsoleMode(hin, newmode); |
67779be7 |
208 | |
209 | WriteFile(hout, prompt, strlen(prompt), &i, NULL); |
32874aea |
210 | ReadFile(hin, str, maxlen - 1, &i, NULL); |
67779be7 |
211 | |
212 | SetConsoleMode(hin, savemode); |
213 | |
32874aea |
214 | if ((int) i > maxlen) |
215 | i = maxlen - 1; |
216 | else |
217 | i = i - 2; |
67779be7 |
218 | str[i] = '\0'; |
219 | |
fa17a66e |
220 | if (is_pw) |
32874aea |
221 | WriteFile(hout, "\r\n", 2, &i, NULL); |
67779be7 |
222 | |
223 | return 1; |
224 | } |
225 | |
32874aea |
226 | static DWORD WINAPI stdin_read_thread(void *param) |
227 | { |
228 | struct input_data *idata = (struct input_data *) param; |
12dc4ec0 |
229 | HANDLE inhandle; |
230 | |
231 | inhandle = GetStdHandle(STD_INPUT_HANDLE); |
232 | |
233 | while (ReadFile(inhandle, idata->buffer, sizeof(idata->buffer), |
32874aea |
234 | &idata->len, NULL) && idata->len > 0) { |
235 | SetEvent(idata->event); |
236 | WaitForSingleObject(idata->eventback, INFINITE); |
12dc4ec0 |
237 | } |
238 | |
239 | idata->len = 0; |
240 | SetEvent(idata->event); |
241 | |
242 | return 0; |
243 | } |
244 | |
d8426c54 |
245 | /* |
246 | * Short description of parameters. |
247 | */ |
248 | static void usage(void) |
249 | { |
250 | printf("PuTTY Link: command-line connection utility\n"); |
251 | printf("%s\n", ver); |
252 | printf("Usage: plink [options] [user@]host [command]\n"); |
253 | printf("Options:\n"); |
254 | printf(" -v show verbose messages\n"); |
255 | printf(" -ssh force use of ssh protocol\n"); |
256 | printf(" -P port connect to specified port\n"); |
257 | printf(" -pw passw login with specified password\n"); |
96621a84 |
258 | printf(" -m file read remote command(s) from file\n"); |
d8426c54 |
259 | exit(1); |
260 | } |
261 | |
32874aea |
262 | char *do_select(SOCKET skt, int startup) |
263 | { |
8df7a775 |
264 | int events; |
265 | if (startup) { |
266 | events = FD_READ | FD_WRITE | FD_OOB | FD_CLOSE; |
267 | } else { |
268 | events = 0; |
269 | } |
32874aea |
270 | if (WSAEventSelect(skt, netevent, events) == SOCKET_ERROR) { |
271 | switch (WSAGetLastError()) { |
272 | case WSAENETDOWN: |
273 | return "Network is down"; |
274 | default: |
275 | return "WSAAsyncSelect(): unknown error"; |
276 | } |
8df7a775 |
277 | } |
278 | return NULL; |
279 | } |
280 | |
32874aea |
281 | int main(int argc, char **argv) |
282 | { |
12dc4ec0 |
283 | WSADATA wsadata; |
284 | WORD winsock_ver; |
8df7a775 |
285 | WSAEVENT stdinevent; |
12dc4ec0 |
286 | HANDLE handles[2]; |
12dc4ec0 |
287 | DWORD threadid; |
288 | struct input_data idata; |
289 | int sending; |
d8426c54 |
290 | int portnumber = -1; |
8df7a775 |
291 | SOCKET *sklist; |
292 | int skcount, sksize; |
293 | int connopen; |
12dc4ec0 |
294 | |
fa17a66e |
295 | ssh_get_line = get_line; |
67779be7 |
296 | |
32874aea |
297 | sklist = NULL; |
298 | skcount = sksize = 0; |
8df7a775 |
299 | |
67779be7 |
300 | flags = FLAG_STDERR; |
12dc4ec0 |
301 | /* |
302 | * Process the command line. |
303 | */ |
a9422f39 |
304 | do_defaults(NULL, &cfg); |
e7a7383f |
305 | default_protocol = cfg.protocol; |
306 | default_port = cfg.port; |
8cb9c947 |
307 | { |
32874aea |
308 | /* |
309 | * Override the default protocol if PLINK_PROTOCOL is set. |
310 | */ |
311 | char *p = getenv("PLINK_PROTOCOL"); |
312 | int i; |
313 | if (p) { |
314 | for (i = 0; backends[i].backend != NULL; i++) { |
315 | if (!strcmp(backends[i].name, p)) { |
316 | default_protocol = cfg.protocol = backends[i].protocol; |
317 | default_port = cfg.port = |
318 | backends[i].backend->default_port; |
319 | break; |
320 | } |
321 | } |
322 | } |
8cb9c947 |
323 | } |
12dc4ec0 |
324 | while (--argc) { |
32874aea |
325 | char *p = *++argv; |
326 | if (*p == '-') { |
327 | if (!strcmp(p, "-ssh")) { |
12dc4ec0 |
328 | default_protocol = cfg.protocol = PROT_SSH; |
329 | default_port = cfg.port = 22; |
32874aea |
330 | } else if (!strcmp(p, "-telnet")) { |
9d33ebdd |
331 | default_protocol = cfg.protocol = PROT_TELNET; |
332 | default_port = cfg.port = 23; |
32874aea |
333 | } else if (!strcmp(p, "-raw")) { |
9d33ebdd |
334 | default_protocol = cfg.protocol = PROT_RAW; |
67779be7 |
335 | } else if (!strcmp(p, "-v")) { |
32874aea |
336 | flags |= FLAG_VERBOSE; |
12dc4ec0 |
337 | } else if (!strcmp(p, "-log")) { |
32874aea |
338 | logfile = "putty.log"; |
339 | } else if (!strcmp(p, "-pw") && argc > 1) { |
340 | --argc, password = *++argv; |
341 | } else if (!strcmp(p, "-l") && argc > 1) { |
342 | char *username; |
343 | --argc, username = *++argv; |
344 | strncpy(cfg.username, username, sizeof(cfg.username)); |
345 | cfg.username[sizeof(cfg.username) - 1] = '\0'; |
346 | } else if (!strcmp(p, "-m") && argc > 1) { |
347 | char *filename, *command; |
348 | int cmdlen, cmdsize; |
349 | FILE *fp; |
350 | int c, d; |
351 | |
352 | --argc, filename = *++argv; |
353 | |
354 | cmdlen = cmdsize = 0; |
355 | command = NULL; |
356 | fp = fopen(filename, "r"); |
357 | if (!fp) { |
358 | fprintf(stderr, "plink: unable to open command " |
359 | "file \"%s\"\n", filename); |
360 | return 1; |
361 | } |
362 | do { |
363 | c = fgetc(fp); |
364 | d = c; |
365 | if (c == EOF) |
366 | d = 0; |
367 | if (cmdlen >= cmdsize) { |
368 | cmdsize = cmdlen + 512; |
369 | command = srealloc(command, cmdsize); |
370 | } |
371 | command[cmdlen++] = d; |
372 | } while (c != EOF); |
373 | cfg.remote_cmd_ptr = command; |
374 | cfg.nopty = TRUE; /* command => no terminal */ |
375 | } else if (!strcmp(p, "-P") && argc > 1) { |
376 | --argc, portnumber = atoi(*++argv); |
377 | } |
12dc4ec0 |
378 | } else if (*p) { |
32874aea |
379 | if (!*cfg.host) { |
380 | char *q = p; |
381 | /* |
382 | * If the hostname starts with "telnet:", set the |
383 | * protocol to Telnet and process the string as a |
384 | * Telnet URL. |
385 | */ |
386 | if (!strncmp(q, "telnet:", 7)) { |
387 | char c; |
388 | |
389 | q += 7; |
390 | if (q[0] == '/' && q[1] == '/') |
391 | q += 2; |
392 | cfg.protocol = PROT_TELNET; |
393 | p = q; |
394 | while (*p && *p != ':' && *p != '/') |
395 | p++; |
396 | c = *p; |
397 | if (*p) |
398 | *p++ = '\0'; |
399 | if (c == ':') |
400 | cfg.port = atoi(p); |
401 | else |
402 | cfg.port = -1; |
403 | strncpy(cfg.host, q, sizeof(cfg.host) - 1); |
404 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
405 | } else { |
406 | char *r; |
407 | /* |
408 | * Before we process the [user@]host string, we |
409 | * first check for the presence of a protocol |
410 | * prefix (a protocol name followed by ","). |
411 | */ |
412 | r = strchr(p, ','); |
413 | if (r) { |
414 | int i, j; |
415 | for (i = 0; backends[i].backend != NULL; i++) { |
416 | j = strlen(backends[i].name); |
417 | if (j == r - p && |
418 | !memcmp(backends[i].name, p, j)) { |
419 | default_protocol = cfg.protocol = |
420 | backends[i].protocol; |
421 | portnumber = |
422 | backends[i].backend->default_port; |
423 | p = r + 1; |
424 | break; |
425 | } |
426 | } |
427 | } |
428 | |
429 | /* |
430 | * Three cases. Either (a) there's a nonzero |
431 | * length string followed by an @, in which |
432 | * case that's user and the remainder is host. |
433 | * Or (b) there's only one string, not counting |
434 | * a potential initial @, and it exists in the |
435 | * saved-sessions database. Or (c) only one |
436 | * string and it _doesn't_ exist in the |
437 | * database. |
438 | */ |
439 | r = strrchr(p, '@'); |
440 | if (r == p) |
441 | p++, r = NULL; /* discount initial @ */ |
442 | if (r == NULL) { |
443 | /* |
444 | * One string. |
445 | */ |
446 | Config cfg2; |
447 | do_defaults(p, &cfg2); |
448 | if (cfg2.host[0] == '\0') { |
449 | /* No settings for this host; use defaults */ |
450 | strncpy(cfg.host, p, sizeof(cfg.host) - 1); |
451 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
452 | cfg.port = default_port; |
453 | } else { |
454 | cfg = cfg2; |
455 | cfg.remote_cmd_ptr = cfg.remote_cmd; |
456 | } |
457 | } else { |
458 | *r++ = '\0'; |
459 | strncpy(cfg.username, p, sizeof(cfg.username) - 1); |
460 | cfg.username[sizeof(cfg.username) - 1] = '\0'; |
461 | strncpy(cfg.host, r, sizeof(cfg.host) - 1); |
462 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
463 | cfg.port = default_port; |
464 | } |
465 | } |
466 | } else { |
467 | int len = sizeof(cfg.remote_cmd) - 1; |
468 | char *cp = cfg.remote_cmd; |
469 | int len2; |
470 | |
471 | strncpy(cp, p, len); |
472 | cp[len] = '\0'; |
473 | len2 = strlen(cp); |
474 | len -= len2; |
475 | cp += len2; |
476 | while (--argc) { |
477 | if (len > 0) |
478 | len--, *cp++ = ' '; |
479 | strncpy(cp, *++argv, len); |
480 | cp[len] = '\0'; |
481 | len2 = strlen(cp); |
482 | len -= len2; |
483 | cp += len2; |
484 | } |
485 | cfg.nopty = TRUE; /* command => no terminal */ |
486 | break; /* done with cmdline */ |
487 | } |
12dc4ec0 |
488 | } |
489 | } |
490 | |
d8426c54 |
491 | if (!*cfg.host) { |
32874aea |
492 | usage(); |
d8426c54 |
493 | } |
d8426c54 |
494 | |
96621a84 |
495 | if (!*cfg.remote_cmd_ptr) |
32874aea |
496 | flags |= FLAG_INTERACTIVE; |
67779be7 |
497 | |
12dc4ec0 |
498 | /* |
499 | * Select protocol. This is farmed out into a table in a |
500 | * separate file to enable an ssh-free variant. |
501 | */ |
502 | { |
32874aea |
503 | int i; |
504 | back = NULL; |
505 | for (i = 0; backends[i].backend != NULL; i++) |
506 | if (backends[i].protocol == cfg.protocol) { |
507 | back = backends[i].backend; |
508 | break; |
509 | } |
510 | if (back == NULL) { |
511 | fprintf(stderr, |
512 | "Internal fault: Unsupported protocol found\n"); |
513 | return 1; |
514 | } |
12dc4ec0 |
515 | } |
516 | |
517 | /* |
8cb9c947 |
518 | * Select port. |
519 | */ |
520 | if (portnumber != -1) |
32874aea |
521 | cfg.port = portnumber; |
8cb9c947 |
522 | |
523 | /* |
12dc4ec0 |
524 | * Initialise WinSock. |
525 | */ |
526 | winsock_ver = MAKEWORD(2, 0); |
527 | if (WSAStartup(winsock_ver, &wsadata)) { |
528 | MessageBox(NULL, "Unable to initialise WinSock", "WinSock Error", |
529 | MB_OK | MB_ICONEXCLAMATION); |
530 | return 1; |
531 | } |
532 | if (LOBYTE(wsadata.wVersion) != 2 || HIBYTE(wsadata.wVersion) != 0) { |
533 | MessageBox(NULL, "WinSock version is incompatible with 2.0", |
534 | "WinSock Error", MB_OK | MB_ICONEXCLAMATION); |
535 | WSACleanup(); |
536 | return 1; |
537 | } |
8df7a775 |
538 | sk_init(); |
12dc4ec0 |
539 | |
540 | /* |
541 | * Start up the connection. |
542 | */ |
8df7a775 |
543 | netevent = CreateEvent(NULL, FALSE, FALSE, NULL); |
12dc4ec0 |
544 | { |
545 | char *error; |
546 | char *realhost; |
547 | |
32874aea |
548 | error = back->init(cfg.host, cfg.port, &realhost); |
12dc4ec0 |
549 | if (error) { |
550 | fprintf(stderr, "Unable to open connection:\n%s", error); |
551 | return 1; |
552 | } |
553 | } |
8df7a775 |
554 | connopen = 1; |
12dc4ec0 |
555 | |
12dc4ec0 |
556 | stdinevent = CreateEvent(NULL, FALSE, FALSE, NULL); |
557 | |
0965bee0 |
558 | inhandle = GetStdHandle(STD_INPUT_HANDLE); |
12dc4ec0 |
559 | outhandle = GetStdHandle(STD_OUTPUT_HANDLE); |
fe50e814 |
560 | errhandle = GetStdHandle(STD_ERROR_HANDLE); |
0965bee0 |
561 | GetConsoleMode(inhandle, &orig_console_mode); |
562 | SetConsoleMode(inhandle, ENABLE_PROCESSED_INPUT); |
12dc4ec0 |
563 | |
564 | /* |
12dc4ec0 |
565 | * Turn off ECHO and LINE input modes. We don't care if this |
566 | * call fails, because we know we aren't necessarily running in |
567 | * a console. |
568 | */ |
12dc4ec0 |
569 | handles[0] = netevent; |
570 | handles[1] = stdinevent; |
571 | sending = FALSE; |
572 | while (1) { |
32874aea |
573 | int n; |
574 | |
575 | if (!sending && back->sendok()) { |
576 | /* |
577 | * Create a separate thread to read from stdin. This is |
578 | * a total pain, but I can't find another way to do it: |
579 | * |
580 | * - an overlapped ReadFile or ReadFileEx just doesn't |
581 | * happen; we get failure from ReadFileEx, and |
582 | * ReadFile blocks despite being given an OVERLAPPED |
583 | * structure. Perhaps we can't do overlapped reads |
584 | * on consoles. WHY THE HELL NOT? |
585 | * |
586 | * - WaitForMultipleObjects(netevent, console) doesn't |
587 | * work, because it signals the console when |
588 | * _anything_ happens, including mouse motions and |
589 | * other things that don't cause data to be readable |
590 | * - so we're back to ReadFile blocking. |
591 | */ |
592 | idata.event = stdinevent; |
593 | idata.eventback = CreateEvent(NULL, FALSE, FALSE, NULL); |
594 | if (!CreateThread(NULL, 0, stdin_read_thread, |
595 | &idata, 0, &threadid)) { |
596 | fprintf(stderr, "Unable to create second thread\n"); |
597 | exit(1); |
598 | } |
599 | sending = TRUE; |
600 | } |
601 | |
602 | n = WaitForMultipleObjects(2, handles, FALSE, INFINITE); |
603 | if (n == 0) { |
604 | WSANETWORKEVENTS things; |
8df7a775 |
605 | SOCKET socket; |
d2371c81 |
606 | extern SOCKET first_socket(int *), next_socket(int *); |
8df7a775 |
607 | extern int select_result(WPARAM, LPARAM); |
32874aea |
608 | int i, socketstate; |
609 | |
610 | /* |
611 | * We must not call select_result() for any socket |
612 | * until we have finished enumerating within the tree. |
613 | * This is because select_result() may close the socket |
614 | * and modify the tree. |
615 | */ |
616 | /* Count the active sockets. */ |
617 | i = 0; |
618 | for (socket = first_socket(&socketstate); |
619 | socket != INVALID_SOCKET; |
620 | socket = next_socket(&socketstate)) i++; |
621 | |
622 | /* Expand the buffer if necessary. */ |
623 | if (i > sksize) { |
624 | sksize = i + 16; |
625 | sklist = srealloc(sklist, sksize * sizeof(*sklist)); |
626 | } |
627 | |
628 | /* Retrieve the sockets into sklist. */ |
629 | skcount = 0; |
630 | for (socket = first_socket(&socketstate); |
631 | socket != INVALID_SOCKET; |
d2371c81 |
632 | socket = next_socket(&socketstate)) { |
32874aea |
633 | sklist[skcount++] = socket; |
634 | } |
635 | |
636 | /* Now we're done enumerating; go through the list. */ |
637 | for (i = 0; i < skcount; i++) { |
638 | WPARAM wp; |
639 | socket = sklist[i]; |
640 | wp = (WPARAM) socket; |
ffb959c7 |
641 | if (!WSAEnumNetworkEvents(socket, NULL, &things)) { |
32874aea |
642 | noise_ultralight(socket); |
643 | noise_ultralight(things.lNetworkEvents); |
8df7a775 |
644 | if (things.lNetworkEvents & FD_READ) |
32874aea |
645 | connopen &= select_result(wp, (LPARAM) FD_READ); |
8df7a775 |
646 | if (things.lNetworkEvents & FD_CLOSE) |
32874aea |
647 | connopen &= select_result(wp, (LPARAM) FD_CLOSE); |
8df7a775 |
648 | if (things.lNetworkEvents & FD_OOB) |
32874aea |
649 | connopen &= select_result(wp, (LPARAM) FD_OOB); |
8df7a775 |
650 | if (things.lNetworkEvents & FD_WRITE) |
32874aea |
651 | connopen &= select_result(wp, (LPARAM) FD_WRITE); |
8df7a775 |
652 | } |
653 | } |
32874aea |
654 | } else if (n == 1) { |
655 | noise_ultralight(idata.len); |
656 | if (idata.len > 0) { |
657 | back->send(idata.buffer, idata.len); |
658 | } else { |
659 | back->special(TS_EOF); |
660 | } |
661 | SetEvent(idata.eventback); |
662 | } |
663 | if (!connopen || back->socket() == NULL) |
664 | break; /* we closed the connection */ |
12dc4ec0 |
665 | } |
666 | WSACleanup(); |
667 | return 0; |
668 | } |