12dc4ec0 |
1 | /* |
f4ff9455 |
2 | * PLink - a Windows command-line (stdin/stdout) variant of PuTTY. |
12dc4ec0 |
3 | */ |
4 | |
12dc4ec0 |
5 | #include <stdio.h> |
49bad831 |
6 | #include <stdlib.h> |
2b0c045b |
7 | #include <assert.h> |
12dc4ec0 |
8 | #include <stdarg.h> |
9 | |
32874aea |
10 | #define PUTTY_DO_GLOBALS /* actually _define_ globals */ |
12dc4ec0 |
11 | #include "putty.h" |
a9422f39 |
12 | #include "storage.h" |
8df7a775 |
13 | #include "tree234.h" |
12dc4ec0 |
14 | |
604fab0c |
15 | #define WM_AGENT_CALLBACK (WM_APP + 4) |
c44bf5bd |
16 | |
c44bf5bd |
17 | struct agent_callback { |
18 | void (*callback)(void *, void *, int); |
19 | void *callback_ctx; |
20 | void *data; |
21 | int len; |
22 | }; |
23 | |
32874aea |
24 | void fatalbox(char *p, ...) |
25 | { |
12dc4ec0 |
26 | va_list ap; |
49bad831 |
27 | fprintf(stderr, "FATAL ERROR: "); |
1709795f |
28 | va_start(ap, p); |
29 | vfprintf(stderr, p, ap); |
30 | va_end(ap); |
31 | fputc('\n', stderr); |
7bfc5fd0 |
32 | if (logctx) { |
33 | log_free(logctx); |
34 | logctx = NULL; |
35 | } |
1709795f |
36 | cleanup_exit(1); |
37 | } |
38 | void modalfatalbox(char *p, ...) |
39 | { |
40 | va_list ap; |
41 | fprintf(stderr, "FATAL ERROR: "); |
12dc4ec0 |
42 | va_start(ap, p); |
43 | vfprintf(stderr, p, ap); |
44 | va_end(ap); |
45 | fputc('\n', stderr); |
7bfc5fd0 |
46 | if (logctx) { |
47 | log_free(logctx); |
48 | logctx = NULL; |
49 | } |
93b581bd |
50 | cleanup_exit(1); |
12dc4ec0 |
51 | } |
a8327734 |
52 | void connection_fatal(void *frontend, char *p, ...) |
32874aea |
53 | { |
8d5de777 |
54 | va_list ap; |
49bad831 |
55 | fprintf(stderr, "FATAL ERROR: "); |
8d5de777 |
56 | va_start(ap, p); |
57 | vfprintf(stderr, p, ap); |
58 | va_end(ap); |
59 | fputc('\n', stderr); |
7bfc5fd0 |
60 | if (logctx) { |
61 | log_free(logctx); |
62 | logctx = NULL; |
63 | } |
93b581bd |
64 | cleanup_exit(1); |
8d5de777 |
65 | } |
c0a81592 |
66 | void cmdline_error(char *p, ...) |
67 | { |
68 | va_list ap; |
69 | fprintf(stderr, "plink: "); |
70 | va_start(ap, p); |
71 | vfprintf(stderr, p, ap); |
72 | va_end(ap); |
73 | fputc('\n', stderr); |
74 | exit(1); |
75 | } |
12dc4ec0 |
76 | |
0965bee0 |
77 | HANDLE inhandle, outhandle, errhandle; |
34292b1d |
78 | struct handle *stdin_handle, *stdout_handle, *stderr_handle; |
6f34e365 |
79 | DWORD orig_console_mode; |
34292b1d |
80 | int connopen; |
6f34e365 |
81 | |
8df7a775 |
82 | WSAEVENT netevent; |
83 | |
6b78788a |
84 | static Backend *back; |
85 | static void *backhandle; |
4a693cfc |
86 | static Conf *conf; |
6b78788a |
87 | |
887035a5 |
88 | int term_ldisc(Terminal *term, int mode) |
32874aea |
89 | { |
90 | return FALSE; |
91 | } |
b9d7bcad |
92 | void ldisc_update(void *frontend, int echo, int edit) |
32874aea |
93 | { |
0965bee0 |
94 | /* Update stdin read mode to reflect changes in line discipline. */ |
95 | DWORD mode; |
96 | |
97 | mode = ENABLE_PROCESSED_INPUT; |
98 | if (echo) |
32874aea |
99 | mode = mode | ENABLE_ECHO_INPUT; |
0965bee0 |
100 | else |
32874aea |
101 | mode = mode & ~ENABLE_ECHO_INPUT; |
0965bee0 |
102 | if (edit) |
32874aea |
103 | mode = mode | ENABLE_LINE_INPUT; |
0965bee0 |
104 | else |
32874aea |
105 | mode = mode & ~ENABLE_LINE_INPUT; |
0965bee0 |
106 | SetConsoleMode(inhandle, mode); |
107 | } |
108 | |
c6ccd5c2 |
109 | char *get_ttymode(void *frontend, const char *mode) { return NULL; } |
110 | |
9fab77dc |
111 | int from_backend(void *frontend_handle, int is_stderr, |
112 | const char *data, int len) |
5471d09a |
113 | { |
5471d09a |
114 | if (is_stderr) { |
34292b1d |
115 | handle_write(stderr_handle, data, len); |
5471d09a |
116 | } else { |
34292b1d |
117 | handle_write(stdout_handle, data, len); |
5471d09a |
118 | } |
119 | |
34292b1d |
120 | return handle_backlog(stdout_handle) + handle_backlog(stderr_handle); |
5471d09a |
121 | } |
122 | |
edd0cb8a |
123 | int from_backend_untrusted(void *frontend_handle, const char *data, int len) |
124 | { |
125 | /* |
126 | * No "untrusted" output should get here (the way the code is |
127 | * currently, it's all diverted by FLAG_STDERR). |
128 | */ |
129 | assert(!"Unexpected call to from_backend_untrusted()"); |
130 | return 0; /* not reached */ |
131 | } |
132 | |
133 | int get_userpass_input(prompts_t *p, unsigned char *in, int inlen) |
134 | { |
135 | int ret; |
136 | ret = cmdline_get_passwd_input(p, in, inlen); |
137 | if (ret == -1) |
138 | ret = console_get_userpass_input(p, in, inlen); |
139 | return ret; |
140 | } |
141 | |
c44bf5bd |
142 | static DWORD main_thread_id; |
143 | |
144 | void agent_schedule_callback(void (*callback)(void *, void *, int), |
145 | void *callback_ctx, void *data, int len) |
146 | { |
147 | struct agent_callback *c = snew(struct agent_callback); |
148 | c->callback = callback; |
149 | c->callback_ctx = callback_ctx; |
150 | c->data = data; |
151 | c->len = len; |
152 | PostThreadMessage(main_thread_id, WM_AGENT_CALLBACK, 0, (LPARAM)c); |
153 | } |
154 | |
d8426c54 |
155 | /* |
156 | * Short description of parameters. |
157 | */ |
158 | static void usage(void) |
159 | { |
160 | printf("PuTTY Link: command-line connection utility\n"); |
161 | printf("%s\n", ver); |
162 | printf("Usage: plink [options] [user@]host [command]\n"); |
e672967c |
163 | printf(" (\"host\" can also be a PuTTY saved session name)\n"); |
d8426c54 |
164 | printf("Options:\n"); |
2285d016 |
165 | printf(" -V print version information and exit\n"); |
166 | printf(" -pgpfp print PGP key fingerprints and exit\n"); |
d8426c54 |
167 | printf(" -v show verbose messages\n"); |
e2a197cf |
168 | printf(" -load sessname Load settings from saved session\n"); |
f41f07bc |
169 | printf(" -ssh -telnet -rlogin -raw -serial\n"); |
afd4d0d2 |
170 | printf(" force use of a particular protocol\n"); |
d8426c54 |
171 | printf(" -P port connect to specified port\n"); |
e2a197cf |
172 | printf(" -l user connect with specified username\n"); |
e2a197cf |
173 | printf(" -batch disable all interactive prompts\n"); |
174 | printf("The following options only apply to SSH connections:\n"); |
175 | printf(" -pw passw login with specified password\n"); |
dbe6c525 |
176 | printf(" -D [listen-IP:]listen-port\n"); |
177 | printf(" Dynamic SOCKS-based port forwarding\n"); |
178 | printf(" -L [listen-IP:]listen-port:host:port\n"); |
179 | printf(" Forward local port to remote address\n"); |
180 | printf(" -R [listen-IP:]listen-port:host:port\n"); |
181 | printf(" Forward remote port to local address\n"); |
e2a197cf |
182 | printf(" -X -x enable / disable X11 forwarding\n"); |
183 | printf(" -A -a enable / disable agent forwarding\n"); |
184 | printf(" -t -T enable / disable pty allocation\n"); |
185 | printf(" -1 -2 force use of particular protocol version\n"); |
05581745 |
186 | printf(" -4 -6 force use of IPv4 or IPv6\n"); |
e2a197cf |
187 | printf(" -C enable compression\n"); |
188 | printf(" -i key private key file for authentication\n"); |
e5708bc7 |
189 | printf(" -noagent disable use of Pageant\n"); |
190 | printf(" -agent enable use of Pageant\n"); |
54018d95 |
191 | printf(" -m file read remote command(s) from file\n"); |
4d1cdf5d |
192 | printf(" -s remote command is an SSH subsystem (SSH-2 only)\n"); |
b72c366d |
193 | printf(" -N don't start a shell/command (SSH-2 only)\n"); |
23828b7e |
194 | printf(" -nc host:port\n"); |
195 | printf(" open tunnel in place of session (SSH-2 only)\n"); |
9621bbab |
196 | printf(" -sercfg configuration-string (e.g. 19200,8,n,1,X)\n"); |
197 | printf(" Specify the serial configuration (serial only)\n"); |
dc108ebc |
198 | exit(1); |
199 | } |
200 | |
201 | static void version(void) |
202 | { |
203 | printf("plink: %s\n", ver); |
d8426c54 |
204 | exit(1); |
205 | } |
206 | |
32874aea |
207 | char *do_select(SOCKET skt, int startup) |
208 | { |
8df7a775 |
209 | int events; |
210 | if (startup) { |
3ad9d396 |
211 | events = (FD_CONNECT | FD_READ | FD_WRITE | |
212 | FD_OOB | FD_CLOSE | FD_ACCEPT); |
8df7a775 |
213 | } else { |
214 | events = 0; |
215 | } |
7440fd44 |
216 | if (p_WSAEventSelect(skt, netevent, events) == SOCKET_ERROR) { |
217 | switch (p_WSAGetLastError()) { |
32874aea |
218 | case WSAENETDOWN: |
219 | return "Network is down"; |
220 | default: |
7440fd44 |
221 | return "WSAEventSelect(): unknown error"; |
32874aea |
222 | } |
8df7a775 |
223 | } |
224 | return NULL; |
225 | } |
226 | |
34292b1d |
227 | int stdin_gotdata(struct handle *h, void *data, int len) |
228 | { |
229 | if (len < 0) { |
230 | /* |
231 | * Special case: report read error. |
232 | */ |
21ae394f |
233 | char buf[4096]; |
234 | FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, -len, 0, |
235 | buf, lenof(buf), NULL); |
236 | buf[lenof(buf)-1] = '\0'; |
237 | if (buf[strlen(buf)-1] == '\n') |
238 | buf[strlen(buf)-1] = '\0'; |
239 | fprintf(stderr, "Unable to read from standard input: %s\n", buf); |
34292b1d |
240 | cleanup_exit(0); |
241 | } |
242 | noise_ultralight(len); |
6226c939 |
243 | if (connopen && back->connected(backhandle)) { |
34292b1d |
244 | if (len > 0) { |
245 | return back->send(backhandle, data, len); |
246 | } else { |
247 | back->special(backhandle, TS_EOF); |
248 | return 0; |
249 | } |
250 | } else |
251 | return 0; |
252 | } |
253 | |
254 | void stdouterr_sent(struct handle *h, int new_backlog) |
255 | { |
256 | if (new_backlog < 0) { |
257 | /* |
258 | * Special case: report write error. |
259 | */ |
21ae394f |
260 | char buf[4096]; |
261 | FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, -new_backlog, 0, |
262 | buf, lenof(buf), NULL); |
263 | buf[lenof(buf)-1] = '\0'; |
264 | if (buf[strlen(buf)-1] == '\n') |
265 | buf[strlen(buf)-1] = '\0'; |
266 | fprintf(stderr, "Unable to write to standard %s: %s\n", |
267 | (h == stdout_handle ? "output" : "error"), buf); |
34292b1d |
268 | cleanup_exit(0); |
269 | } |
6226c939 |
270 | if (connopen && back->connected(backhandle)) { |
34292b1d |
271 | back->unthrottle(backhandle, (handle_backlog(stdout_handle) + |
272 | handle_backlog(stderr_handle))); |
273 | } |
274 | } |
275 | |
32874aea |
276 | int main(int argc, char **argv) |
277 | { |
12dc4ec0 |
278 | int sending; |
d8426c54 |
279 | int portnumber = -1; |
8df7a775 |
280 | SOCKET *sklist; |
281 | int skcount, sksize; |
d8d6c7e5 |
282 | int exitcode; |
86256dc6 |
283 | int errors; |
f0f51e90 |
284 | int got_host = FALSE; |
4d1cdf5d |
285 | int use_subsystem = 0; |
39934deb |
286 | long now, next; |
12dc4ec0 |
287 | |
32874aea |
288 | sklist = NULL; |
289 | skcount = sksize = 0; |
c9bdcd96 |
290 | /* |
291 | * Initialise port and protocol to sensible defaults. (These |
292 | * will be overridden by more or less anything.) |
293 | */ |
294 | default_protocol = PROT_SSH; |
295 | default_port = 22; |
8df7a775 |
296 | |
67779be7 |
297 | flags = FLAG_STDERR; |
12dc4ec0 |
298 | /* |
299 | * Process the command line. |
300 | */ |
4a693cfc |
301 | conf = conf_new(); |
302 | do_defaults(NULL, conf); |
18e62ad8 |
303 | loaded_session = FALSE; |
4a693cfc |
304 | default_protocol = conf_get_int(conf, CONF_protocol); |
305 | default_port = conf_get_int(conf, CONF_port); |
86256dc6 |
306 | errors = 0; |
8cb9c947 |
307 | { |
32874aea |
308 | /* |
309 | * Override the default protocol if PLINK_PROTOCOL is set. |
310 | */ |
311 | char *p = getenv("PLINK_PROTOCOL"); |
32874aea |
312 | if (p) { |
9e164d82 |
313 | const Backend *b = backend_from_name(p); |
314 | if (b) { |
4a693cfc |
315 | default_protocol = b->protocol; |
316 | default_port = b->default_port; |
317 | conf_set_int(conf, CONF_protocol, default_protocol); |
318 | conf_set_int(conf, CONF_port, default_port); |
32874aea |
319 | } |
320 | } |
8cb9c947 |
321 | } |
12dc4ec0 |
322 | while (--argc) { |
32874aea |
323 | char *p = *++argv; |
324 | if (*p == '-') { |
5555d393 |
325 | int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL), |
4a693cfc |
326 | 1, conf); |
c0a81592 |
327 | if (ret == -2) { |
328 | fprintf(stderr, |
329 | "plink: option \"%s\" requires an argument\n", p); |
86256dc6 |
330 | errors = 1; |
c0a81592 |
331 | } else if (ret == 2) { |
332 | --argc, ++argv; |
333 | } else if (ret == 1) { |
334 | continue; |
ff2ae367 |
335 | } else if (!strcmp(p, "-batch")) { |
c0a81592 |
336 | console_batch_mode = 1; |
4d1cdf5d |
337 | } else if (!strcmp(p, "-s")) { |
4a693cfc |
338 | /* Save status to write to conf later. */ |
4d1cdf5d |
339 | use_subsystem = 1; |
dc108ebc |
340 | } else if (!strcmp(p, "-V")) { |
341 | version(); |
2285d016 |
342 | } else if (!strcmp(p, "-pgpfp")) { |
343 | pgp_fingerprints(); |
344 | exit(1); |
86256dc6 |
345 | } else { |
346 | fprintf(stderr, "plink: unknown option \"%s\"\n", p); |
347 | errors = 1; |
32874aea |
348 | } |
12dc4ec0 |
349 | } else if (*p) { |
4a693cfc |
350 | if (!conf_launchable(conf) || !(got_host || loaded_session)) { |
32874aea |
351 | char *q = p; |
352 | /* |
353 | * If the hostname starts with "telnet:", set the |
354 | * protocol to Telnet and process the string as a |
355 | * Telnet URL. |
356 | */ |
357 | if (!strncmp(q, "telnet:", 7)) { |
358 | char c; |
359 | |
360 | q += 7; |
361 | if (q[0] == '/' && q[1] == '/') |
362 | q += 2; |
4a693cfc |
363 | conf_set_int(conf, CONF_protocol, PROT_TELNET); |
32874aea |
364 | p = q; |
365 | while (*p && *p != ':' && *p != '/') |
366 | p++; |
367 | c = *p; |
368 | if (*p) |
369 | *p++ = '\0'; |
370 | if (c == ':') |
4a693cfc |
371 | conf_set_int(conf, CONF_port, atoi(p)); |
32874aea |
372 | else |
4a693cfc |
373 | conf_set_int(conf, CONF_port, -1); |
374 | conf_set_str(conf, CONF_host, q); |
f0f51e90 |
375 | got_host = TRUE; |
32874aea |
376 | } else { |
3608528b |
377 | char *r, *user, *host; |
32874aea |
378 | /* |
379 | * Before we process the [user@]host string, we |
380 | * first check for the presence of a protocol |
381 | * prefix (a protocol name followed by ","). |
382 | */ |
383 | r = strchr(p, ','); |
384 | if (r) { |
9e164d82 |
385 | const Backend *b; |
386 | *r = '\0'; |
387 | b = backend_from_name(p); |
388 | if (b) { |
4a693cfc |
389 | default_protocol = b->protocol; |
390 | conf_set_int(conf, CONF_protocol, |
391 | default_protocol); |
9e164d82 |
392 | portnumber = b->default_port; |
32874aea |
393 | } |
9e164d82 |
394 | p = r + 1; |
32874aea |
395 | } |
396 | |
397 | /* |
3608528b |
398 | * A nonzero length string followed by an @ is treated |
399 | * as a username. (We discount an _initial_ @.) The |
400 | * rest of the string (or the whole string if no @) |
401 | * is treated as a session name and/or hostname. |
32874aea |
402 | */ |
403 | r = strrchr(p, '@'); |
404 | if (r == p) |
405 | p++, r = NULL; /* discount initial @ */ |
3608528b |
406 | if (r) { |
407 | *r++ = '\0'; |
408 | user = p, host = r; |
409 | } else { |
410 | user = NULL, host = p; |
411 | } |
412 | |
413 | /* |
414 | * Now attempt to load a saved session with the |
415 | * same name as the hostname. |
416 | */ |
417 | { |
4a693cfc |
418 | Conf *conf2 = conf_new(); |
419 | do_defaults(host, conf2); |
420 | if (loaded_session || !conf_launchable(conf2)) { |
32874aea |
421 | /* No settings for this host; use defaults */ |
18e62ad8 |
422 | /* (or session was already loaded with -load) */ |
4a693cfc |
423 | conf_set_str(conf, CONF_host, host); |
424 | conf_set_int(conf, CONF_port, default_port); |
f0f51e90 |
425 | got_host = TRUE; |
32874aea |
426 | } else { |
4a693cfc |
427 | conf_copy_into(conf, conf2); |
f0f51e90 |
428 | loaded_session = TRUE; |
32874aea |
429 | } |
4a693cfc |
430 | conf_free(conf2); |
3608528b |
431 | } |
432 | |
433 | if (user) { |
434 | /* Patch in specified username. */ |
4a693cfc |
435 | conf_set_str(conf, CONF_username, user); |
32874aea |
436 | } |
3608528b |
437 | |
32874aea |
438 | } |
439 | } else { |
385528da |
440 | char *command; |
441 | int cmdlen, cmdsize; |
442 | cmdlen = cmdsize = 0; |
443 | command = NULL; |
444 | |
445 | while (argc) { |
446 | while (*p) { |
447 | if (cmdlen >= cmdsize) { |
448 | cmdsize = cmdlen + 512; |
3d88e64d |
449 | command = sresize(command, cmdsize, char); |
385528da |
450 | } |
451 | command[cmdlen++]=*p++; |
452 | } |
453 | if (cmdlen >= cmdsize) { |
454 | cmdsize = cmdlen + 512; |
3d88e64d |
455 | command = sresize(command, cmdsize, char); |
385528da |
456 | } |
457 | command[cmdlen++]=' '; /* always add trailing space */ |
458 | if (--argc) p = *++argv; |
32874aea |
459 | } |
385528da |
460 | if (cmdlen) command[--cmdlen]='\0'; |
461 | /* change trailing blank to NUL */ |
4a693cfc |
462 | conf_set_str(conf, CONF_remote_cmd, command); |
463 | conf_set_str(conf, CONF_remote_cmd2, ""); |
464 | conf_set_int(conf, CONF_nopty, TRUE); /* command => no tty */ |
385528da |
465 | |
32874aea |
466 | break; /* done with cmdline */ |
467 | } |
12dc4ec0 |
468 | } |
469 | } |
470 | |
86256dc6 |
471 | if (errors) |
472 | return 1; |
473 | |
4a693cfc |
474 | if (!conf_launchable(conf) || !(got_host || loaded_session)) { |
32874aea |
475 | usage(); |
d8426c54 |
476 | } |
d8426c54 |
477 | |
449925a6 |
478 | /* |
4a693cfc |
479 | * Muck about with the hostname in various ways. |
449925a6 |
480 | */ |
481 | { |
4a693cfc |
482 | char *hostbuf = dupstr(conf_get_str(conf, CONF_host)); |
483 | char *host = hostbuf; |
484 | char *p, *q; |
485 | |
486 | /* |
487 | * Trim leading whitespace. |
488 | */ |
489 | host += strspn(host, " \t"); |
449925a6 |
490 | |
4a693cfc |
491 | /* |
492 | * See if host is of the form user@host, and separate out |
493 | * the username if so. |
494 | */ |
495 | if (host[0] != '\0') { |
496 | char *atsign = strrchr(host, '@'); |
497 | if (atsign) { |
498 | *atsign = '\0'; |
499 | conf_set_str(conf, CONF_username, host); |
500 | host = atsign + 1; |
449925a6 |
501 | } |
449925a6 |
502 | } |
4a693cfc |
503 | |
504 | /* |
505 | * Trim off a colon suffix if it's there. |
506 | */ |
507 | host[strcspn(host, ":")] = '\0'; |
508 | |
509 | /* |
510 | * Remove any remaining whitespace. |
511 | */ |
512 | p = hostbuf; |
513 | q = host; |
514 | while (*q) { |
515 | if (*q != ' ' && *q != '\t') |
516 | *p++ = *q; |
517 | q++; |
518 | } |
519 | *p = '\0'; |
520 | |
521 | conf_set_str(conf, CONF_host, hostbuf); |
522 | sfree(hostbuf); |
449925a6 |
523 | } |
524 | |
525 | /* |
c0a81592 |
526 | * Perform command-line overrides on session configuration. |
527 | */ |
4a693cfc |
528 | cmdline_run_saved(conf); |
c0a81592 |
529 | |
530 | /* |
4d1cdf5d |
531 | * Apply subsystem status. |
532 | */ |
533 | if (use_subsystem) |
4a693cfc |
534 | conf_set_int(conf, CONF_ssh_subsys, TRUE); |
cae0c023 |
535 | |
4a693cfc |
536 | if (!*conf_get_str(conf, CONF_remote_cmd) && |
537 | !*conf_get_str(conf, CONF_remote_cmd2) && |
538 | !*conf_get_str(conf, CONF_ssh_nc_host)) |
32874aea |
539 | flags |= FLAG_INTERACTIVE; |
67779be7 |
540 | |
12dc4ec0 |
541 | /* |
542 | * Select protocol. This is farmed out into a table in a |
543 | * separate file to enable an ssh-free variant. |
544 | */ |
4a693cfc |
545 | back = backend_from_proto(conf_get_int(conf, CONF_protocol)); |
9e164d82 |
546 | if (back == NULL) { |
547 | fprintf(stderr, |
548 | "Internal fault: Unsupported protocol found\n"); |
549 | return 1; |
12dc4ec0 |
550 | } |
551 | |
552 | /* |
8cb9c947 |
553 | * Select port. |
554 | */ |
555 | if (portnumber != -1) |
4a693cfc |
556 | conf_set_int(conf, CONF_port, portnumber); |
8cb9c947 |
557 | |
7440fd44 |
558 | sk_init(); |
559 | if (p_WSAEventSelect == NULL) { |
560 | fprintf(stderr, "Plink requires WinSock 2\n"); |
12dc4ec0 |
561 | return 1; |
562 | } |
563 | |
4a693cfc |
564 | logctx = log_init(NULL, conf); |
1626d169 |
565 | console_provide_logctx(logctx); |
566 | |
12dc4ec0 |
567 | /* |
568 | * Start up the connection. |
569 | */ |
8df7a775 |
570 | netevent = CreateEvent(NULL, FALSE, FALSE, NULL); |
12dc4ec0 |
571 | { |
cbe2d68f |
572 | const char *error; |
12dc4ec0 |
573 | char *realhost; |
2184a5d9 |
574 | /* nodelay is only useful if stdin is a character device (console) */ |
4a693cfc |
575 | int nodelay = conf_get_int(conf, CONF_tcp_nodelay) && |
2184a5d9 |
576 | (GetFileType(GetStdHandle(STD_INPUT_HANDLE)) == FILE_TYPE_CHAR); |
12dc4ec0 |
577 | |
4a693cfc |
578 | error = back->init(NULL, &backhandle, conf, |
579 | conf_get_str(conf, CONF_host), |
580 | conf_get_int(conf, CONF_port), |
581 | &realhost, nodelay, |
582 | conf_get_int(conf, CONF_tcp_keepalives)); |
12dc4ec0 |
583 | if (error) { |
584 | fprintf(stderr, "Unable to open connection:\n%s", error); |
585 | return 1; |
586 | } |
a8327734 |
587 | back->provide_logctx(backhandle, logctx); |
6e1ebb76 |
588 | sfree(realhost); |
12dc4ec0 |
589 | } |
8df7a775 |
590 | connopen = 1; |
12dc4ec0 |
591 | |
0965bee0 |
592 | inhandle = GetStdHandle(STD_INPUT_HANDLE); |
12dc4ec0 |
593 | outhandle = GetStdHandle(STD_OUTPUT_HANDLE); |
fe50e814 |
594 | errhandle = GetStdHandle(STD_ERROR_HANDLE); |
34292b1d |
595 | |
12dc4ec0 |
596 | /* |
12dc4ec0 |
597 | * Turn off ECHO and LINE input modes. We don't care if this |
598 | * call fails, because we know we aren't necessarily running in |
599 | * a console. |
600 | */ |
f8efb0d5 |
601 | GetConsoleMode(inhandle, &orig_console_mode); |
602 | SetConsoleMode(inhandle, ENABLE_PROCESSED_INPUT); |
603 | |
34292b1d |
604 | /* |
605 | * Pass the output handles to the handle-handling subsystem. |
606 | * (The input one we leave until we're through the |
607 | * authentication process.) |
608 | */ |
bdebd7e9 |
609 | stdout_handle = handle_output_new(outhandle, stdouterr_sent, NULL, 0); |
610 | stderr_handle = handle_output_new(errhandle, stdouterr_sent, NULL, 0); |
34292b1d |
611 | |
f8efb0d5 |
612 | main_thread_id = GetCurrentThreadId(); |
613 | |
12dc4ec0 |
614 | sending = FALSE; |
5471d09a |
615 | |
39934deb |
616 | now = GETTICKCOUNT(); |
617 | |
12dc4ec0 |
618 | while (1) { |
34292b1d |
619 | int nhandles; |
620 | HANDLE *handles; |
32874aea |
621 | int n; |
39934deb |
622 | DWORD ticks; |
32874aea |
623 | |
51470298 |
624 | if (!sending && back->sendok(backhandle)) { |
bdebd7e9 |
625 | stdin_handle = handle_input_new(inhandle, stdin_gotdata, NULL, |
626 | 0); |
32874aea |
627 | sending = TRUE; |
628 | } |
629 | |
39934deb |
630 | if (run_timers(now, &next)) { |
631 | ticks = next - GETTICKCOUNT(); |
632 | if (ticks < 0) ticks = 0; /* just in case */ |
633 | } else { |
634 | ticks = INFINITE; |
635 | } |
636 | |
34292b1d |
637 | handles = handle_get_events(&nhandles); |
638 | handles = sresize(handles, nhandles+1, HANDLE); |
639 | handles[nhandles] = netevent; |
640 | n = MsgWaitForMultipleObjects(nhandles+1, handles, FALSE, ticks, |
c44bf5bd |
641 | QS_POSTMESSAGE); |
34292b1d |
642 | if ((unsigned)(n - WAIT_OBJECT_0) < (unsigned)nhandles) { |
643 | handle_got_event(handles[n - WAIT_OBJECT_0]); |
644 | } else if (n == WAIT_OBJECT_0 + nhandles) { |
32874aea |
645 | WSANETWORKEVENTS things; |
8df7a775 |
646 | SOCKET socket; |
d2371c81 |
647 | extern SOCKET first_socket(int *), next_socket(int *); |
8df7a775 |
648 | extern int select_result(WPARAM, LPARAM); |
32874aea |
649 | int i, socketstate; |
650 | |
651 | /* |
652 | * We must not call select_result() for any socket |
653 | * until we have finished enumerating within the tree. |
654 | * This is because select_result() may close the socket |
655 | * and modify the tree. |
656 | */ |
657 | /* Count the active sockets. */ |
658 | i = 0; |
659 | for (socket = first_socket(&socketstate); |
660 | socket != INVALID_SOCKET; |
661 | socket = next_socket(&socketstate)) i++; |
662 | |
663 | /* Expand the buffer if necessary. */ |
664 | if (i > sksize) { |
665 | sksize = i + 16; |
3d88e64d |
666 | sklist = sresize(sklist, sksize, SOCKET); |
32874aea |
667 | } |
668 | |
669 | /* Retrieve the sockets into sklist. */ |
670 | skcount = 0; |
671 | for (socket = first_socket(&socketstate); |
672 | socket != INVALID_SOCKET; |
d2371c81 |
673 | socket = next_socket(&socketstate)) { |
32874aea |
674 | sklist[skcount++] = socket; |
675 | } |
676 | |
677 | /* Now we're done enumerating; go through the list. */ |
678 | for (i = 0; i < skcount; i++) { |
679 | WPARAM wp; |
680 | socket = sklist[i]; |
681 | wp = (WPARAM) socket; |
7440fd44 |
682 | if (!p_WSAEnumNetworkEvents(socket, NULL, &things)) { |
64cdd21b |
683 | static const struct { int bit, mask; } eventtypes[] = { |
684 | {FD_CONNECT_BIT, FD_CONNECT}, |
685 | {FD_READ_BIT, FD_READ}, |
686 | {FD_CLOSE_BIT, FD_CLOSE}, |
687 | {FD_OOB_BIT, FD_OOB}, |
688 | {FD_WRITE_BIT, FD_WRITE}, |
689 | {FD_ACCEPT_BIT, FD_ACCEPT}, |
690 | }; |
691 | int e; |
692 | |
32874aea |
693 | noise_ultralight(socket); |
694 | noise_ultralight(things.lNetworkEvents); |
d74d141c |
695 | |
64cdd21b |
696 | for (e = 0; e < lenof(eventtypes); e++) |
697 | if (things.lNetworkEvents & eventtypes[e].mask) { |
698 | LPARAM lp; |
699 | int err = things.iErrorCode[eventtypes[e].bit]; |
700 | lp = WSAMAKESELECTREPLY(eventtypes[e].mask, err); |
701 | connopen &= select_result(wp, lp); |
702 | } |
8df7a775 |
703 | } |
704 | } |
34292b1d |
705 | } else if (n == WAIT_OBJECT_0 + nhandles + 1) { |
c44bf5bd |
706 | MSG msg; |
707 | while (PeekMessage(&msg, INVALID_HANDLE_VALUE, |
708 | WM_AGENT_CALLBACK, WM_AGENT_CALLBACK, |
709 | PM_REMOVE)) { |
710 | struct agent_callback *c = (struct agent_callback *)msg.lParam; |
711 | c->callback(c->callback_ctx, c->data, c->len); |
712 | sfree(c); |
713 | } |
5471d09a |
714 | } |
39934deb |
715 | |
716 | if (n == WAIT_TIMEOUT) { |
717 | now = next; |
718 | } else { |
719 | now = GETTICKCOUNT(); |
720 | } |
721 | |
34292b1d |
722 | sfree(handles); |
723 | |
724 | if (sending) |
725 | handle_unthrottle(stdin_handle, back->sendbuffer(backhandle)); |
726 | |
6226c939 |
727 | if ((!connopen || !back->connected(backhandle)) && |
34292b1d |
728 | handle_backlog(stdout_handle) + handle_backlog(stderr_handle) == 0) |
32874aea |
729 | break; /* we closed the connection */ |
12dc4ec0 |
730 | } |
51470298 |
731 | exitcode = back->exitcode(backhandle); |
d8d6c7e5 |
732 | if (exitcode < 0) { |
733 | fprintf(stderr, "Remote process exit code unavailable\n"); |
734 | exitcode = 1; /* this is an error condition */ |
735 | } |
7440fd44 |
736 | cleanup_exit(exitcode); |
737 | return 0; /* placate compiler warning */ |
12dc4ec0 |
738 | } |