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> |
2b0c045b |
11 | #include <assert.h> |
12dc4ec0 |
12 | #include <stdarg.h> |
13 | |
32874aea |
14 | #define PUTTY_DO_GLOBALS /* actually _define_ globals */ |
12dc4ec0 |
15 | #include "putty.h" |
a9422f39 |
16 | #include "storage.h" |
8df7a775 |
17 | #include "tree234.h" |
12dc4ec0 |
18 | |
5471d09a |
19 | #define MAX_STDIN_BACKLOG 4096 |
20 | |
32874aea |
21 | void fatalbox(char *p, ...) |
22 | { |
12dc4ec0 |
23 | va_list ap; |
49bad831 |
24 | fprintf(stderr, "FATAL ERROR: "); |
12dc4ec0 |
25 | va_start(ap, p); |
26 | vfprintf(stderr, p, ap); |
27 | va_end(ap); |
28 | fputc('\n', stderr); |
29 | WSACleanup(); |
93b581bd |
30 | cleanup_exit(1); |
12dc4ec0 |
31 | } |
32874aea |
32 | void connection_fatal(char *p, ...) |
33 | { |
8d5de777 |
34 | va_list ap; |
49bad831 |
35 | fprintf(stderr, "FATAL ERROR: "); |
8d5de777 |
36 | va_start(ap, p); |
37 | vfprintf(stderr, p, ap); |
38 | va_end(ap); |
39 | fputc('\n', stderr); |
40 | WSACleanup(); |
93b581bd |
41 | cleanup_exit(1); |
8d5de777 |
42 | } |
12dc4ec0 |
43 | |
d8426c54 |
44 | static char *password = NULL; |
45 | |
0965bee0 |
46 | HANDLE inhandle, outhandle, errhandle; |
6f34e365 |
47 | DWORD orig_console_mode; |
48 | |
8df7a775 |
49 | WSAEVENT netevent; |
50 | |
32874aea |
51 | int term_ldisc(int mode) |
52 | { |
53 | return FALSE; |
54 | } |
55 | void ldisc_update(int echo, int edit) |
56 | { |
0965bee0 |
57 | /* Update stdin read mode to reflect changes in line discipline. */ |
58 | DWORD mode; |
59 | |
60 | mode = ENABLE_PROCESSED_INPUT; |
61 | if (echo) |
32874aea |
62 | mode = mode | ENABLE_ECHO_INPUT; |
0965bee0 |
63 | else |
32874aea |
64 | mode = mode & ~ENABLE_ECHO_INPUT; |
0965bee0 |
65 | if (edit) |
32874aea |
66 | mode = mode | ENABLE_LINE_INPUT; |
0965bee0 |
67 | else |
32874aea |
68 | mode = mode & ~ENABLE_LINE_INPUT; |
0965bee0 |
69 | SetConsoleMode(inhandle, mode); |
70 | } |
71 | |
5471d09a |
72 | struct input_data { |
73 | DWORD len; |
74 | char buffer[4096]; |
75 | HANDLE event, eventback; |
76 | }; |
77 | |
32874aea |
78 | static DWORD WINAPI stdin_read_thread(void *param) |
79 | { |
80 | struct input_data *idata = (struct input_data *) param; |
12dc4ec0 |
81 | HANDLE inhandle; |
82 | |
83 | inhandle = GetStdHandle(STD_INPUT_HANDLE); |
84 | |
85 | while (ReadFile(inhandle, idata->buffer, sizeof(idata->buffer), |
32874aea |
86 | &idata->len, NULL) && idata->len > 0) { |
87 | SetEvent(idata->event); |
88 | WaitForSingleObject(idata->eventback, INFINITE); |
12dc4ec0 |
89 | } |
90 | |
91 | idata->len = 0; |
92 | SetEvent(idata->event); |
93 | |
94 | return 0; |
95 | } |
96 | |
5471d09a |
97 | struct output_data { |
98 | DWORD len, lenwritten; |
99 | int writeret; |
100 | char *buffer; |
101 | int is_stderr, done; |
102 | HANDLE event, eventback; |
103 | int busy; |
104 | }; |
105 | |
106 | static DWORD WINAPI stdout_write_thread(void *param) |
107 | { |
108 | struct output_data *odata = (struct output_data *) param; |
109 | HANDLE outhandle, errhandle; |
110 | |
111 | outhandle = GetStdHandle(STD_OUTPUT_HANDLE); |
112 | errhandle = GetStdHandle(STD_ERROR_HANDLE); |
113 | |
114 | while (1) { |
115 | WaitForSingleObject(odata->eventback, INFINITE); |
116 | if (odata->done) |
117 | break; |
118 | odata->writeret = |
119 | WriteFile(odata->is_stderr ? errhandle : outhandle, |
120 | odata->buffer, odata->len, &odata->lenwritten, NULL); |
121 | SetEvent(odata->event); |
122 | } |
123 | |
124 | return 0; |
125 | } |
126 | |
127 | bufchain stdout_data, stderr_data; |
128 | struct output_data odata, edata; |
129 | |
130 | void try_output(int is_stderr) |
131 | { |
132 | struct output_data *data = (is_stderr ? &edata : &odata); |
133 | void *senddata; |
134 | int sendlen; |
135 | |
136 | if (!data->busy) { |
137 | bufchain_prefix(is_stderr ? &stderr_data : &stdout_data, |
138 | &senddata, &sendlen); |
139 | data->buffer = senddata; |
140 | data->len = sendlen; |
141 | SetEvent(data->eventback); |
142 | data->busy = 1; |
143 | } |
144 | } |
145 | |
146 | int from_backend(int is_stderr, char *data, int len) |
147 | { |
5471d09a |
148 | HANDLE h = (is_stderr ? errhandle : outhandle); |
5471d09a |
149 | int osize, esize; |
150 | |
2b0c045b |
151 | assert(len > 0); |
152 | |
5471d09a |
153 | if (is_stderr) { |
154 | bufchain_add(&stderr_data, data, len); |
155 | try_output(1); |
156 | } else { |
157 | bufchain_add(&stdout_data, data, len); |
158 | try_output(0); |
159 | } |
160 | |
161 | osize = bufchain_size(&stdout_data); |
162 | esize = bufchain_size(&stderr_data); |
163 | |
164 | return osize + esize; |
165 | } |
166 | |
d8426c54 |
167 | /* |
168 | * Short description of parameters. |
169 | */ |
170 | static void usage(void) |
171 | { |
172 | printf("PuTTY Link: command-line connection utility\n"); |
173 | printf("%s\n", ver); |
174 | printf("Usage: plink [options] [user@]host [command]\n"); |
e672967c |
175 | printf(" (\"host\" can also be a PuTTY saved session name)\n"); |
d8426c54 |
176 | printf("Options:\n"); |
177 | printf(" -v show verbose messages\n"); |
178 | printf(" -ssh force use of ssh protocol\n"); |
179 | printf(" -P port connect to specified port\n"); |
180 | printf(" -pw passw login with specified password\n"); |
96621a84 |
181 | printf(" -m file read remote command(s) from file\n"); |
e7aabca4 |
182 | printf(" -L listen-port:host:port Forward local port to " |
183 | "remote address\n"); |
184 | printf(" -R listen-port:host:port Forward remote port to" |
185 | " local address\n"); |
d8426c54 |
186 | exit(1); |
187 | } |
188 | |
32874aea |
189 | char *do_select(SOCKET skt, int startup) |
190 | { |
8df7a775 |
191 | int events; |
192 | if (startup) { |
3ad9d396 |
193 | events = (FD_CONNECT | FD_READ | FD_WRITE | |
194 | FD_OOB | FD_CLOSE | FD_ACCEPT); |
8df7a775 |
195 | } else { |
196 | events = 0; |
197 | } |
32874aea |
198 | if (WSAEventSelect(skt, netevent, events) == SOCKET_ERROR) { |
199 | switch (WSAGetLastError()) { |
200 | case WSAENETDOWN: |
201 | return "Network is down"; |
202 | default: |
203 | return "WSAAsyncSelect(): unknown error"; |
204 | } |
8df7a775 |
205 | } |
206 | return NULL; |
207 | } |
208 | |
32874aea |
209 | int main(int argc, char **argv) |
210 | { |
12dc4ec0 |
211 | WSADATA wsadata; |
212 | WORD winsock_ver; |
5471d09a |
213 | WSAEVENT stdinevent, stdoutevent, stderrevent; |
214 | HANDLE handles[4]; |
215 | DWORD in_threadid, out_threadid, err_threadid; |
12dc4ec0 |
216 | struct input_data idata; |
5471d09a |
217 | int reading; |
12dc4ec0 |
218 | int sending; |
d8426c54 |
219 | int portnumber = -1; |
8df7a775 |
220 | SOCKET *sklist; |
221 | int skcount, sksize; |
222 | int connopen; |
d8d6c7e5 |
223 | int exitcode; |
e7aabca4 |
224 | char extra_portfwd[sizeof(cfg.portfwd)]; |
12dc4ec0 |
225 | |
ff2ae367 |
226 | ssh_get_line = console_get_line; |
67779be7 |
227 | |
32874aea |
228 | sklist = NULL; |
229 | skcount = sksize = 0; |
c9bdcd96 |
230 | /* |
231 | * Initialise port and protocol to sensible defaults. (These |
232 | * will be overridden by more or less anything.) |
233 | */ |
234 | default_protocol = PROT_SSH; |
235 | default_port = 22; |
8df7a775 |
236 | |
67779be7 |
237 | flags = FLAG_STDERR; |
12dc4ec0 |
238 | /* |
239 | * Process the command line. |
240 | */ |
a9422f39 |
241 | do_defaults(NULL, &cfg); |
e7a7383f |
242 | default_protocol = cfg.protocol; |
243 | default_port = cfg.port; |
8cb9c947 |
244 | { |
32874aea |
245 | /* |
246 | * Override the default protocol if PLINK_PROTOCOL is set. |
247 | */ |
248 | char *p = getenv("PLINK_PROTOCOL"); |
249 | int i; |
250 | if (p) { |
251 | for (i = 0; backends[i].backend != NULL; i++) { |
252 | if (!strcmp(backends[i].name, p)) { |
253 | default_protocol = cfg.protocol = backends[i].protocol; |
254 | default_port = cfg.port = |
255 | backends[i].backend->default_port; |
256 | break; |
257 | } |
258 | } |
259 | } |
8cb9c947 |
260 | } |
12dc4ec0 |
261 | while (--argc) { |
32874aea |
262 | char *p = *++argv; |
263 | if (*p == '-') { |
264 | if (!strcmp(p, "-ssh")) { |
12dc4ec0 |
265 | default_protocol = cfg.protocol = PROT_SSH; |
266 | default_port = cfg.port = 22; |
32874aea |
267 | } else if (!strcmp(p, "-telnet")) { |
9d33ebdd |
268 | default_protocol = cfg.protocol = PROT_TELNET; |
269 | default_port = cfg.port = 23; |
66a3d938 |
270 | } else if (!strcmp(p, "-rlogin")) { |
271 | default_protocol = cfg.protocol = PROT_RLOGIN; |
272 | default_port = cfg.port = 513; |
32874aea |
273 | } else if (!strcmp(p, "-raw")) { |
9d33ebdd |
274 | default_protocol = cfg.protocol = PROT_RAW; |
ff2ae367 |
275 | } else if (!strcmp(p, "-batch")) { |
276 | console_batch_mode = TRUE; |
67779be7 |
277 | } else if (!strcmp(p, "-v")) { |
32874aea |
278 | flags |= FLAG_VERBOSE; |
12dc4ec0 |
279 | } else if (!strcmp(p, "-log")) { |
32874aea |
280 | logfile = "putty.log"; |
281 | } else if (!strcmp(p, "-pw") && argc > 1) { |
ff2ae367 |
282 | --argc, console_password = *++argv; |
32874aea |
283 | } else if (!strcmp(p, "-l") && argc > 1) { |
284 | char *username; |
285 | --argc, username = *++argv; |
286 | strncpy(cfg.username, username, sizeof(cfg.username)); |
287 | cfg.username[sizeof(cfg.username) - 1] = '\0'; |
e7aabca4 |
288 | } else if ((!strcmp(p, "-L") || !strcmp(p, "-R")) && argc > 1) { |
41ff4658 |
289 | char *fwd, *ptr, *q; |
e7aabca4 |
290 | int i=0; |
291 | --argc, fwd = *++argv; |
292 | ptr = extra_portfwd; |
293 | /* if multiple forwards, find end of list */ |
294 | if (ptr[0]=='R' || ptr[0]=='L') { |
295 | for (i = 0; i < sizeof(extra_portfwd) - 2; i++) |
296 | if (ptr[i]=='\000' && ptr[i+1]=='\000') |
297 | break; |
298 | ptr = ptr + i + 1; /* point to next forward slot */ |
299 | } |
300 | ptr[0] = p[1]; /* insert a 'L' or 'R' at the start */ |
301 | strncpy(ptr+1, fwd, sizeof(extra_portfwd) - i); |
41ff4658 |
302 | q = strchr(ptr, ':'); |
303 | if (q) *q = '\t'; /* replace first : with \t */ |
e7aabca4 |
304 | ptr[strlen(ptr)+1] = '\000'; /* append two '\000' */ |
305 | extra_portfwd[sizeof(extra_portfwd) - 1] = '\0'; |
32874aea |
306 | } else if (!strcmp(p, "-m") && argc > 1) { |
307 | char *filename, *command; |
308 | int cmdlen, cmdsize; |
309 | FILE *fp; |
310 | int c, d; |
311 | |
312 | --argc, filename = *++argv; |
313 | |
314 | cmdlen = cmdsize = 0; |
315 | command = NULL; |
316 | fp = fopen(filename, "r"); |
317 | if (!fp) { |
318 | fprintf(stderr, "plink: unable to open command " |
319 | "file \"%s\"\n", filename); |
320 | return 1; |
321 | } |
322 | do { |
323 | c = fgetc(fp); |
324 | d = c; |
325 | if (c == EOF) |
326 | d = 0; |
327 | if (cmdlen >= cmdsize) { |
328 | cmdsize = cmdlen + 512; |
329 | command = srealloc(command, cmdsize); |
330 | } |
331 | command[cmdlen++] = d; |
332 | } while (c != EOF); |
333 | cfg.remote_cmd_ptr = command; |
fd5e5847 |
334 | cfg.remote_cmd_ptr2 = NULL; |
32874aea |
335 | cfg.nopty = TRUE; /* command => no terminal */ |
336 | } else if (!strcmp(p, "-P") && argc > 1) { |
337 | --argc, portnumber = atoi(*++argv); |
338 | } |
12dc4ec0 |
339 | } else if (*p) { |
32874aea |
340 | if (!*cfg.host) { |
341 | char *q = p; |
342 | /* |
343 | * If the hostname starts with "telnet:", set the |
344 | * protocol to Telnet and process the string as a |
345 | * Telnet URL. |
346 | */ |
347 | if (!strncmp(q, "telnet:", 7)) { |
348 | char c; |
349 | |
350 | q += 7; |
351 | if (q[0] == '/' && q[1] == '/') |
352 | q += 2; |
353 | cfg.protocol = PROT_TELNET; |
354 | p = q; |
355 | while (*p && *p != ':' && *p != '/') |
356 | p++; |
357 | c = *p; |
358 | if (*p) |
359 | *p++ = '\0'; |
360 | if (c == ':') |
361 | cfg.port = atoi(p); |
362 | else |
363 | cfg.port = -1; |
364 | strncpy(cfg.host, q, sizeof(cfg.host) - 1); |
365 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
366 | } else { |
367 | char *r; |
368 | /* |
369 | * Before we process the [user@]host string, we |
370 | * first check for the presence of a protocol |
371 | * prefix (a protocol name followed by ","). |
372 | */ |
373 | r = strchr(p, ','); |
374 | if (r) { |
375 | int i, j; |
376 | for (i = 0; backends[i].backend != NULL; i++) { |
377 | j = strlen(backends[i].name); |
378 | if (j == r - p && |
379 | !memcmp(backends[i].name, p, j)) { |
380 | default_protocol = cfg.protocol = |
381 | backends[i].protocol; |
382 | portnumber = |
383 | backends[i].backend->default_port; |
384 | p = r + 1; |
385 | break; |
386 | } |
387 | } |
388 | } |
389 | |
390 | /* |
391 | * Three cases. Either (a) there's a nonzero |
392 | * length string followed by an @, in which |
393 | * case that's user and the remainder is host. |
394 | * Or (b) there's only one string, not counting |
395 | * a potential initial @, and it exists in the |
396 | * saved-sessions database. Or (c) only one |
397 | * string and it _doesn't_ exist in the |
398 | * database. |
399 | */ |
400 | r = strrchr(p, '@'); |
401 | if (r == p) |
402 | p++, r = NULL; /* discount initial @ */ |
403 | if (r == NULL) { |
404 | /* |
405 | * One string. |
406 | */ |
407 | Config cfg2; |
408 | do_defaults(p, &cfg2); |
409 | if (cfg2.host[0] == '\0') { |
410 | /* No settings for this host; use defaults */ |
411 | strncpy(cfg.host, p, sizeof(cfg.host) - 1); |
412 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
413 | cfg.port = default_port; |
414 | } else { |
415 | cfg = cfg2; |
416 | cfg.remote_cmd_ptr = cfg.remote_cmd; |
417 | } |
418 | } else { |
419 | *r++ = '\0'; |
420 | strncpy(cfg.username, p, sizeof(cfg.username) - 1); |
421 | cfg.username[sizeof(cfg.username) - 1] = '\0'; |
422 | strncpy(cfg.host, r, sizeof(cfg.host) - 1); |
423 | cfg.host[sizeof(cfg.host) - 1] = '\0'; |
424 | cfg.port = default_port; |
425 | } |
426 | } |
427 | } else { |
385528da |
428 | char *command; |
429 | int cmdlen, cmdsize; |
430 | cmdlen = cmdsize = 0; |
431 | command = NULL; |
432 | |
433 | while (argc) { |
434 | while (*p) { |
435 | if (cmdlen >= cmdsize) { |
436 | cmdsize = cmdlen + 512; |
437 | command = srealloc(command, cmdsize); |
438 | } |
439 | command[cmdlen++]=*p++; |
440 | } |
441 | if (cmdlen >= cmdsize) { |
442 | cmdsize = cmdlen + 512; |
443 | command = srealloc(command, cmdsize); |
444 | } |
445 | command[cmdlen++]=' '; /* always add trailing space */ |
446 | if (--argc) p = *++argv; |
32874aea |
447 | } |
385528da |
448 | if (cmdlen) command[--cmdlen]='\0'; |
449 | /* change trailing blank to NUL */ |
450 | cfg.remote_cmd_ptr = command; |
451 | cfg.remote_cmd_ptr2 = NULL; |
32874aea |
452 | cfg.nopty = TRUE; /* command => no terminal */ |
385528da |
453 | |
32874aea |
454 | break; /* done with cmdline */ |
455 | } |
12dc4ec0 |
456 | } |
457 | } |
458 | |
d8426c54 |
459 | if (!*cfg.host) { |
32874aea |
460 | usage(); |
d8426c54 |
461 | } |
d8426c54 |
462 | |
449925a6 |
463 | /* |
464 | * Trim leading whitespace off the hostname if it's there. |
465 | */ |
466 | { |
467 | int space = strspn(cfg.host, " \t"); |
468 | memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space); |
469 | } |
470 | |
471 | /* See if host is of the form user@host */ |
472 | if (cfg.host[0] != '\0') { |
473 | char *atsign = strchr(cfg.host, '@'); |
474 | /* Make sure we're not overflowing the user field */ |
475 | if (atsign) { |
476 | if (atsign - cfg.host < sizeof cfg.username) { |
477 | strncpy(cfg.username, cfg.host, atsign - cfg.host); |
478 | cfg.username[atsign - cfg.host] = '\0'; |
479 | } |
480 | memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1)); |
481 | } |
482 | } |
483 | |
484 | /* |
485 | * Trim a colon suffix off the hostname if it's there. |
486 | */ |
487 | cfg.host[strcspn(cfg.host, ":")] = '\0'; |
488 | |
96621a84 |
489 | if (!*cfg.remote_cmd_ptr) |
32874aea |
490 | flags |= FLAG_INTERACTIVE; |
67779be7 |
491 | |
12dc4ec0 |
492 | /* |
493 | * Select protocol. This is farmed out into a table in a |
494 | * separate file to enable an ssh-free variant. |
495 | */ |
496 | { |
32874aea |
497 | int i; |
498 | back = NULL; |
499 | for (i = 0; backends[i].backend != NULL; i++) |
500 | if (backends[i].protocol == cfg.protocol) { |
501 | back = backends[i].backend; |
502 | break; |
503 | } |
504 | if (back == NULL) { |
505 | fprintf(stderr, |
506 | "Internal fault: Unsupported protocol found\n"); |
507 | return 1; |
508 | } |
12dc4ec0 |
509 | } |
510 | |
511 | /* |
e7aabca4 |
512 | * Add extra port forwardings (accumulated on command line) to |
513 | * cfg. |
514 | */ |
515 | { |
516 | int i; |
517 | char *p; |
518 | p = extra_portfwd; |
519 | i = 0; |
520 | while (cfg.portfwd[i]) |
521 | i += strlen(cfg.portfwd+i) + 1; |
522 | while (*p) { |
523 | if (strlen(p)+2 > sizeof(cfg.portfwd)-i) { |
524 | fprintf(stderr, "Internal fault: not enough space for all" |
525 | " port forwardings\n"); |
526 | break; |
527 | } |
528 | strncpy(cfg.portfwd+i, p, sizeof(cfg.portfwd)-i-1); |
529 | i += strlen(cfg.portfwd+i) + 1; |
530 | cfg.portfwd[i] = '\0'; |
531 | p += strlen(p)+1; |
532 | } |
533 | } |
534 | |
535 | /* |
8cb9c947 |
536 | * Select port. |
537 | */ |
538 | if (portnumber != -1) |
32874aea |
539 | cfg.port = portnumber; |
8cb9c947 |
540 | |
541 | /* |
12dc4ec0 |
542 | * Initialise WinSock. |
543 | */ |
544 | winsock_ver = MAKEWORD(2, 0); |
545 | if (WSAStartup(winsock_ver, &wsadata)) { |
546 | MessageBox(NULL, "Unable to initialise WinSock", "WinSock Error", |
547 | MB_OK | MB_ICONEXCLAMATION); |
548 | return 1; |
549 | } |
550 | if (LOBYTE(wsadata.wVersion) != 2 || HIBYTE(wsadata.wVersion) != 0) { |
551 | MessageBox(NULL, "WinSock version is incompatible with 2.0", |
552 | "WinSock Error", MB_OK | MB_ICONEXCLAMATION); |
553 | WSACleanup(); |
554 | return 1; |
555 | } |
8df7a775 |
556 | sk_init(); |
12dc4ec0 |
557 | |
558 | /* |
559 | * Start up the connection. |
560 | */ |
8df7a775 |
561 | netevent = CreateEvent(NULL, FALSE, FALSE, NULL); |
12dc4ec0 |
562 | { |
563 | char *error; |
564 | char *realhost; |
2184a5d9 |
565 | /* nodelay is only useful if stdin is a character device (console) */ |
566 | int nodelay = cfg.tcp_nodelay && |
567 | (GetFileType(GetStdHandle(STD_INPUT_HANDLE)) == FILE_TYPE_CHAR); |
12dc4ec0 |
568 | |
2184a5d9 |
569 | error = back->init(cfg.host, cfg.port, &realhost, nodelay); |
12dc4ec0 |
570 | if (error) { |
571 | fprintf(stderr, "Unable to open connection:\n%s", error); |
572 | return 1; |
573 | } |
6e1ebb76 |
574 | sfree(realhost); |
12dc4ec0 |
575 | } |
8df7a775 |
576 | connopen = 1; |
12dc4ec0 |
577 | |
12dc4ec0 |
578 | stdinevent = CreateEvent(NULL, FALSE, FALSE, NULL); |
5471d09a |
579 | stdoutevent = CreateEvent(NULL, FALSE, FALSE, NULL); |
580 | stderrevent = CreateEvent(NULL, FALSE, FALSE, NULL); |
12dc4ec0 |
581 | |
0965bee0 |
582 | inhandle = GetStdHandle(STD_INPUT_HANDLE); |
12dc4ec0 |
583 | outhandle = GetStdHandle(STD_OUTPUT_HANDLE); |
fe50e814 |
584 | errhandle = GetStdHandle(STD_ERROR_HANDLE); |
0965bee0 |
585 | GetConsoleMode(inhandle, &orig_console_mode); |
586 | SetConsoleMode(inhandle, ENABLE_PROCESSED_INPUT); |
12dc4ec0 |
587 | |
588 | /* |
12dc4ec0 |
589 | * Turn off ECHO and LINE input modes. We don't care if this |
590 | * call fails, because we know we aren't necessarily running in |
591 | * a console. |
592 | */ |
12dc4ec0 |
593 | handles[0] = netevent; |
594 | handles[1] = stdinevent; |
5471d09a |
595 | handles[2] = stdoutevent; |
596 | handles[3] = stderrevent; |
12dc4ec0 |
597 | sending = FALSE; |
5471d09a |
598 | |
599 | /* |
600 | * Create spare threads to write to stdout and stderr, so we |
601 | * can arrange asynchronous writes. |
602 | */ |
603 | odata.event = stdoutevent; |
604 | odata.eventback = CreateEvent(NULL, FALSE, FALSE, NULL); |
605 | odata.is_stderr = 0; |
606 | odata.busy = odata.done = 0; |
607 | if (!CreateThread(NULL, 0, stdout_write_thread, |
608 | &odata, 0, &out_threadid)) { |
609 | fprintf(stderr, "Unable to create output thread\n"); |
93b581bd |
610 | cleanup_exit(1); |
5471d09a |
611 | } |
612 | edata.event = stderrevent; |
613 | edata.eventback = CreateEvent(NULL, FALSE, FALSE, NULL); |
614 | edata.is_stderr = 1; |
615 | edata.busy = edata.done = 0; |
616 | if (!CreateThread(NULL, 0, stdout_write_thread, |
617 | &edata, 0, &err_threadid)) { |
618 | fprintf(stderr, "Unable to create error output thread\n"); |
93b581bd |
619 | cleanup_exit(1); |
5471d09a |
620 | } |
621 | |
12dc4ec0 |
622 | while (1) { |
32874aea |
623 | int n; |
624 | |
625 | if (!sending && back->sendok()) { |
626 | /* |
627 | * Create a separate thread to read from stdin. This is |
628 | * a total pain, but I can't find another way to do it: |
629 | * |
630 | * - an overlapped ReadFile or ReadFileEx just doesn't |
631 | * happen; we get failure from ReadFileEx, and |
632 | * ReadFile blocks despite being given an OVERLAPPED |
633 | * structure. Perhaps we can't do overlapped reads |
634 | * on consoles. WHY THE HELL NOT? |
635 | * |
636 | * - WaitForMultipleObjects(netevent, console) doesn't |
637 | * work, because it signals the console when |
638 | * _anything_ happens, including mouse motions and |
639 | * other things that don't cause data to be readable |
640 | * - so we're back to ReadFile blocking. |
641 | */ |
642 | idata.event = stdinevent; |
643 | idata.eventback = CreateEvent(NULL, FALSE, FALSE, NULL); |
644 | if (!CreateThread(NULL, 0, stdin_read_thread, |
5471d09a |
645 | &idata, 0, &in_threadid)) { |
646 | fprintf(stderr, "Unable to create input thread\n"); |
93b581bd |
647 | cleanup_exit(1); |
32874aea |
648 | } |
649 | sending = TRUE; |
650 | } |
651 | |
5471d09a |
652 | n = WaitForMultipleObjects(4, handles, FALSE, INFINITE); |
32874aea |
653 | if (n == 0) { |
654 | WSANETWORKEVENTS things; |
8df7a775 |
655 | SOCKET socket; |
d2371c81 |
656 | extern SOCKET first_socket(int *), next_socket(int *); |
8df7a775 |
657 | extern int select_result(WPARAM, LPARAM); |
32874aea |
658 | int i, socketstate; |
659 | |
660 | /* |
661 | * We must not call select_result() for any socket |
662 | * until we have finished enumerating within the tree. |
663 | * This is because select_result() may close the socket |
664 | * and modify the tree. |
665 | */ |
666 | /* Count the active sockets. */ |
667 | i = 0; |
668 | for (socket = first_socket(&socketstate); |
669 | socket != INVALID_SOCKET; |
670 | socket = next_socket(&socketstate)) i++; |
671 | |
672 | /* Expand the buffer if necessary. */ |
673 | if (i > sksize) { |
674 | sksize = i + 16; |
675 | sklist = srealloc(sklist, sksize * sizeof(*sklist)); |
676 | } |
677 | |
678 | /* Retrieve the sockets into sklist. */ |
679 | skcount = 0; |
680 | for (socket = first_socket(&socketstate); |
681 | socket != INVALID_SOCKET; |
d2371c81 |
682 | socket = next_socket(&socketstate)) { |
32874aea |
683 | sklist[skcount++] = socket; |
684 | } |
685 | |
686 | /* Now we're done enumerating; go through the list. */ |
687 | for (i = 0; i < skcount; i++) { |
688 | WPARAM wp; |
689 | socket = sklist[i]; |
690 | wp = (WPARAM) socket; |
ffb959c7 |
691 | if (!WSAEnumNetworkEvents(socket, NULL, &things)) { |
64cdd21b |
692 | static const struct { int bit, mask; } eventtypes[] = { |
693 | {FD_CONNECT_BIT, FD_CONNECT}, |
694 | {FD_READ_BIT, FD_READ}, |
695 | {FD_CLOSE_BIT, FD_CLOSE}, |
696 | {FD_OOB_BIT, FD_OOB}, |
697 | {FD_WRITE_BIT, FD_WRITE}, |
698 | {FD_ACCEPT_BIT, FD_ACCEPT}, |
699 | }; |
700 | int e; |
701 | |
32874aea |
702 | noise_ultralight(socket); |
703 | noise_ultralight(things.lNetworkEvents); |
d74d141c |
704 | |
64cdd21b |
705 | for (e = 0; e < lenof(eventtypes); e++) |
706 | if (things.lNetworkEvents & eventtypes[e].mask) { |
707 | LPARAM lp; |
708 | int err = things.iErrorCode[eventtypes[e].bit]; |
709 | lp = WSAMAKESELECTREPLY(eventtypes[e].mask, err); |
710 | connopen &= select_result(wp, lp); |
711 | } |
8df7a775 |
712 | } |
713 | } |
32874aea |
714 | } else if (n == 1) { |
5471d09a |
715 | reading = 0; |
32874aea |
716 | noise_ultralight(idata.len); |
42856df4 |
717 | if (connopen && back->socket() != NULL) { |
718 | if (idata.len > 0) { |
719 | back->send(idata.buffer, idata.len); |
720 | } else { |
721 | back->special(TS_EOF); |
722 | } |
32874aea |
723 | } |
5471d09a |
724 | } else if (n == 2) { |
725 | odata.busy = 0; |
726 | if (!odata.writeret) { |
727 | fprintf(stderr, "Unable to write to standard output\n"); |
93b581bd |
728 | cleanup_exit(0); |
5471d09a |
729 | } |
730 | bufchain_consume(&stdout_data, odata.lenwritten); |
731 | if (bufchain_size(&stdout_data) > 0) |
732 | try_output(0); |
42856df4 |
733 | if (connopen && back->socket() != NULL) { |
734 | back->unthrottle(bufchain_size(&stdout_data) + |
735 | bufchain_size(&stderr_data)); |
736 | } |
5471d09a |
737 | } else if (n == 3) { |
738 | edata.busy = 0; |
739 | if (!edata.writeret) { |
740 | fprintf(stderr, "Unable to write to standard output\n"); |
93b581bd |
741 | cleanup_exit(0); |
5471d09a |
742 | } |
743 | bufchain_consume(&stderr_data, edata.lenwritten); |
744 | if (bufchain_size(&stderr_data) > 0) |
745 | try_output(1); |
42856df4 |
746 | if (connopen && back->socket() != NULL) { |
747 | back->unthrottle(bufchain_size(&stdout_data) + |
748 | bufchain_size(&stderr_data)); |
749 | } |
5471d09a |
750 | } |
751 | if (!reading && back->sendbuffer() < MAX_STDIN_BACKLOG) { |
32874aea |
752 | SetEvent(idata.eventback); |
5471d09a |
753 | reading = 1; |
32874aea |
754 | } |
42856df4 |
755 | if ((!connopen || back->socket() == NULL) && |
756 | bufchain_size(&stdout_data) == 0 && |
757 | bufchain_size(&stderr_data) == 0) |
32874aea |
758 | break; /* we closed the connection */ |
12dc4ec0 |
759 | } |
760 | WSACleanup(); |
d8d6c7e5 |
761 | exitcode = back->exitcode(); |
762 | if (exitcode < 0) { |
763 | fprintf(stderr, "Remote process exit code unavailable\n"); |
764 | exitcode = 1; /* this is an error condition */ |
765 | } |
766 | return exitcode; |
12dc4ec0 |
767 | } |