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 | |
bc06669b |
133 | int from_backend_eof(void *frontend_handle) |
134 | { |
135 | handle_write_eof(stdout_handle); |
136 | return FALSE; /* do not respond to incoming EOF with outgoing */ |
137 | } |
138 | |
edd0cb8a |
139 | int get_userpass_input(prompts_t *p, unsigned char *in, int inlen) |
140 | { |
141 | int ret; |
142 | ret = cmdline_get_passwd_input(p, in, inlen); |
143 | if (ret == -1) |
144 | ret = console_get_userpass_input(p, in, inlen); |
145 | return ret; |
146 | } |
147 | |
c44bf5bd |
148 | static DWORD main_thread_id; |
149 | |
150 | void agent_schedule_callback(void (*callback)(void *, void *, int), |
151 | void *callback_ctx, void *data, int len) |
152 | { |
153 | struct agent_callback *c = snew(struct agent_callback); |
154 | c->callback = callback; |
155 | c->callback_ctx = callback_ctx; |
156 | c->data = data; |
157 | c->len = len; |
158 | PostThreadMessage(main_thread_id, WM_AGENT_CALLBACK, 0, (LPARAM)c); |
159 | } |
160 | |
d8426c54 |
161 | /* |
162 | * Short description of parameters. |
163 | */ |
164 | static void usage(void) |
165 | { |
166 | printf("PuTTY Link: command-line connection utility\n"); |
167 | printf("%s\n", ver); |
168 | printf("Usage: plink [options] [user@]host [command]\n"); |
e672967c |
169 | printf(" (\"host\" can also be a PuTTY saved session name)\n"); |
d8426c54 |
170 | printf("Options:\n"); |
2285d016 |
171 | printf(" -V print version information and exit\n"); |
172 | printf(" -pgpfp print PGP key fingerprints and exit\n"); |
d8426c54 |
173 | printf(" -v show verbose messages\n"); |
e2a197cf |
174 | printf(" -load sessname Load settings from saved session\n"); |
f41f07bc |
175 | printf(" -ssh -telnet -rlogin -raw -serial\n"); |
afd4d0d2 |
176 | printf(" force use of a particular protocol\n"); |
d8426c54 |
177 | printf(" -P port connect to specified port\n"); |
e2a197cf |
178 | printf(" -l user connect with specified username\n"); |
e2a197cf |
179 | printf(" -batch disable all interactive prompts\n"); |
180 | printf("The following options only apply to SSH connections:\n"); |
181 | printf(" -pw passw login with specified password\n"); |
dbe6c525 |
182 | printf(" -D [listen-IP:]listen-port\n"); |
183 | printf(" Dynamic SOCKS-based port forwarding\n"); |
184 | printf(" -L [listen-IP:]listen-port:host:port\n"); |
185 | printf(" Forward local port to remote address\n"); |
186 | printf(" -R [listen-IP:]listen-port:host:port\n"); |
187 | printf(" Forward remote port to local address\n"); |
e2a197cf |
188 | printf(" -X -x enable / disable X11 forwarding\n"); |
189 | printf(" -A -a enable / disable agent forwarding\n"); |
190 | printf(" -t -T enable / disable pty allocation\n"); |
191 | printf(" -1 -2 force use of particular protocol version\n"); |
05581745 |
192 | printf(" -4 -6 force use of IPv4 or IPv6\n"); |
e2a197cf |
193 | printf(" -C enable compression\n"); |
194 | printf(" -i key private key file for authentication\n"); |
e5708bc7 |
195 | printf(" -noagent disable use of Pageant\n"); |
196 | printf(" -agent enable use of Pageant\n"); |
54018d95 |
197 | printf(" -m file read remote command(s) from file\n"); |
4d1cdf5d |
198 | printf(" -s remote command is an SSH subsystem (SSH-2 only)\n"); |
b72c366d |
199 | printf(" -N don't start a shell/command (SSH-2 only)\n"); |
23828b7e |
200 | printf(" -nc host:port\n"); |
201 | printf(" open tunnel in place of session (SSH-2 only)\n"); |
9621bbab |
202 | printf(" -sercfg configuration-string (e.g. 19200,8,n,1,X)\n"); |
203 | printf(" Specify the serial configuration (serial only)\n"); |
dc108ebc |
204 | exit(1); |
205 | } |
206 | |
207 | static void version(void) |
208 | { |
209 | printf("plink: %s\n", ver); |
d8426c54 |
210 | exit(1); |
211 | } |
212 | |
32874aea |
213 | char *do_select(SOCKET skt, int startup) |
214 | { |
8df7a775 |
215 | int events; |
216 | if (startup) { |
3ad9d396 |
217 | events = (FD_CONNECT | FD_READ | FD_WRITE | |
218 | FD_OOB | FD_CLOSE | FD_ACCEPT); |
8df7a775 |
219 | } else { |
220 | events = 0; |
221 | } |
7440fd44 |
222 | if (p_WSAEventSelect(skt, netevent, events) == SOCKET_ERROR) { |
223 | switch (p_WSAGetLastError()) { |
32874aea |
224 | case WSAENETDOWN: |
225 | return "Network is down"; |
226 | default: |
7440fd44 |
227 | return "WSAEventSelect(): unknown error"; |
32874aea |
228 | } |
8df7a775 |
229 | } |
230 | return NULL; |
231 | } |
232 | |
34292b1d |
233 | int stdin_gotdata(struct handle *h, void *data, int len) |
234 | { |
235 | if (len < 0) { |
236 | /* |
237 | * Special case: report read error. |
238 | */ |
21ae394f |
239 | char buf[4096]; |
240 | FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, -len, 0, |
241 | buf, lenof(buf), NULL); |
242 | buf[lenof(buf)-1] = '\0'; |
243 | if (buf[strlen(buf)-1] == '\n') |
244 | buf[strlen(buf)-1] = '\0'; |
245 | fprintf(stderr, "Unable to read from standard input: %s\n", buf); |
34292b1d |
246 | cleanup_exit(0); |
247 | } |
248 | noise_ultralight(len); |
6226c939 |
249 | if (connopen && back->connected(backhandle)) { |
34292b1d |
250 | if (len > 0) { |
251 | return back->send(backhandle, data, len); |
252 | } else { |
253 | back->special(backhandle, TS_EOF); |
254 | return 0; |
255 | } |
256 | } else |
257 | return 0; |
258 | } |
259 | |
260 | void stdouterr_sent(struct handle *h, int new_backlog) |
261 | { |
262 | if (new_backlog < 0) { |
263 | /* |
264 | * Special case: report write error. |
265 | */ |
21ae394f |
266 | char buf[4096]; |
267 | FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, -new_backlog, 0, |
268 | buf, lenof(buf), NULL); |
269 | buf[lenof(buf)-1] = '\0'; |
270 | if (buf[strlen(buf)-1] == '\n') |
271 | buf[strlen(buf)-1] = '\0'; |
272 | fprintf(stderr, "Unable to write to standard %s: %s\n", |
273 | (h == stdout_handle ? "output" : "error"), buf); |
34292b1d |
274 | cleanup_exit(0); |
275 | } |
6226c939 |
276 | if (connopen && back->connected(backhandle)) { |
34292b1d |
277 | back->unthrottle(backhandle, (handle_backlog(stdout_handle) + |
278 | handle_backlog(stderr_handle))); |
279 | } |
280 | } |
281 | |
32874aea |
282 | int main(int argc, char **argv) |
283 | { |
12dc4ec0 |
284 | int sending; |
d8426c54 |
285 | int portnumber = -1; |
8df7a775 |
286 | SOCKET *sklist; |
287 | int skcount, sksize; |
d8d6c7e5 |
288 | int exitcode; |
86256dc6 |
289 | int errors; |
f0f51e90 |
290 | int got_host = FALSE; |
4d1cdf5d |
291 | int use_subsystem = 0; |
d719927e |
292 | unsigned long now, next, then; |
12dc4ec0 |
293 | |
32874aea |
294 | sklist = NULL; |
295 | skcount = sksize = 0; |
c9bdcd96 |
296 | /* |
297 | * Initialise port and protocol to sensible defaults. (These |
298 | * will be overridden by more or less anything.) |
299 | */ |
300 | default_protocol = PROT_SSH; |
301 | default_port = 22; |
8df7a775 |
302 | |
67779be7 |
303 | flags = FLAG_STDERR; |
12dc4ec0 |
304 | /* |
305 | * Process the command line. |
306 | */ |
4a693cfc |
307 | conf = conf_new(); |
308 | do_defaults(NULL, conf); |
18e62ad8 |
309 | loaded_session = FALSE; |
4a693cfc |
310 | default_protocol = conf_get_int(conf, CONF_protocol); |
311 | default_port = conf_get_int(conf, CONF_port); |
86256dc6 |
312 | errors = 0; |
8cb9c947 |
313 | { |
32874aea |
314 | /* |
315 | * Override the default protocol if PLINK_PROTOCOL is set. |
316 | */ |
317 | char *p = getenv("PLINK_PROTOCOL"); |
32874aea |
318 | if (p) { |
9e164d82 |
319 | const Backend *b = backend_from_name(p); |
320 | if (b) { |
4a693cfc |
321 | default_protocol = b->protocol; |
322 | default_port = b->default_port; |
323 | conf_set_int(conf, CONF_protocol, default_protocol); |
324 | conf_set_int(conf, CONF_port, default_port); |
32874aea |
325 | } |
326 | } |
8cb9c947 |
327 | } |
12dc4ec0 |
328 | while (--argc) { |
32874aea |
329 | char *p = *++argv; |
330 | if (*p == '-') { |
5555d393 |
331 | int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL), |
4a693cfc |
332 | 1, conf); |
c0a81592 |
333 | if (ret == -2) { |
334 | fprintf(stderr, |
335 | "plink: option \"%s\" requires an argument\n", p); |
86256dc6 |
336 | errors = 1; |
c0a81592 |
337 | } else if (ret == 2) { |
338 | --argc, ++argv; |
339 | } else if (ret == 1) { |
340 | continue; |
ff2ae367 |
341 | } else if (!strcmp(p, "-batch")) { |
c0a81592 |
342 | console_batch_mode = 1; |
4d1cdf5d |
343 | } else if (!strcmp(p, "-s")) { |
4a693cfc |
344 | /* Save status to write to conf later. */ |
4d1cdf5d |
345 | use_subsystem = 1; |
bcb1823f |
346 | } else if (!strcmp(p, "-V") || !strcmp(p, "--version")) { |
dc108ebc |
347 | version(); |
bcb1823f |
348 | } else if (!strcmp(p, "--help")) { |
349 | usage(); |
2285d016 |
350 | } else if (!strcmp(p, "-pgpfp")) { |
351 | pgp_fingerprints(); |
352 | exit(1); |
86256dc6 |
353 | } else { |
354 | fprintf(stderr, "plink: unknown option \"%s\"\n", p); |
355 | errors = 1; |
32874aea |
356 | } |
12dc4ec0 |
357 | } else if (*p) { |
4a693cfc |
358 | if (!conf_launchable(conf) || !(got_host || loaded_session)) { |
32874aea |
359 | char *q = p; |
360 | /* |
361 | * If the hostname starts with "telnet:", set the |
362 | * protocol to Telnet and process the string as a |
363 | * Telnet URL. |
364 | */ |
365 | if (!strncmp(q, "telnet:", 7)) { |
366 | char c; |
367 | |
368 | q += 7; |
369 | if (q[0] == '/' && q[1] == '/') |
370 | q += 2; |
4a693cfc |
371 | conf_set_int(conf, CONF_protocol, PROT_TELNET); |
32874aea |
372 | p = q; |
373 | while (*p && *p != ':' && *p != '/') |
374 | p++; |
375 | c = *p; |
376 | if (*p) |
377 | *p++ = '\0'; |
378 | if (c == ':') |
4a693cfc |
379 | conf_set_int(conf, CONF_port, atoi(p)); |
32874aea |
380 | else |
4a693cfc |
381 | conf_set_int(conf, CONF_port, -1); |
382 | conf_set_str(conf, CONF_host, q); |
f0f51e90 |
383 | got_host = TRUE; |
32874aea |
384 | } else { |
3608528b |
385 | char *r, *user, *host; |
32874aea |
386 | /* |
387 | * Before we process the [user@]host string, we |
388 | * first check for the presence of a protocol |
389 | * prefix (a protocol name followed by ","). |
390 | */ |
391 | r = strchr(p, ','); |
392 | if (r) { |
9e164d82 |
393 | const Backend *b; |
394 | *r = '\0'; |
395 | b = backend_from_name(p); |
396 | if (b) { |
4a693cfc |
397 | default_protocol = b->protocol; |
398 | conf_set_int(conf, CONF_protocol, |
399 | default_protocol); |
9e164d82 |
400 | portnumber = b->default_port; |
32874aea |
401 | } |
9e164d82 |
402 | p = r + 1; |
32874aea |
403 | } |
404 | |
405 | /* |
3608528b |
406 | * A nonzero length string followed by an @ is treated |
407 | * as a username. (We discount an _initial_ @.) The |
408 | * rest of the string (or the whole string if no @) |
409 | * is treated as a session name and/or hostname. |
32874aea |
410 | */ |
411 | r = strrchr(p, '@'); |
412 | if (r == p) |
413 | p++, r = NULL; /* discount initial @ */ |
3608528b |
414 | if (r) { |
415 | *r++ = '\0'; |
416 | user = p, host = r; |
417 | } else { |
418 | user = NULL, host = p; |
419 | } |
420 | |
421 | /* |
422 | * Now attempt to load a saved session with the |
423 | * same name as the hostname. |
424 | */ |
425 | { |
4a693cfc |
426 | Conf *conf2 = conf_new(); |
427 | do_defaults(host, conf2); |
428 | if (loaded_session || !conf_launchable(conf2)) { |
32874aea |
429 | /* No settings for this host; use defaults */ |
18e62ad8 |
430 | /* (or session was already loaded with -load) */ |
4a693cfc |
431 | conf_set_str(conf, CONF_host, host); |
432 | conf_set_int(conf, CONF_port, default_port); |
f0f51e90 |
433 | got_host = TRUE; |
32874aea |
434 | } else { |
4a693cfc |
435 | conf_copy_into(conf, conf2); |
f0f51e90 |
436 | loaded_session = TRUE; |
32874aea |
437 | } |
4a693cfc |
438 | conf_free(conf2); |
3608528b |
439 | } |
440 | |
441 | if (user) { |
442 | /* Patch in specified username. */ |
4a693cfc |
443 | conf_set_str(conf, CONF_username, user); |
32874aea |
444 | } |
3608528b |
445 | |
32874aea |
446 | } |
447 | } else { |
385528da |
448 | char *command; |
449 | int cmdlen, cmdsize; |
450 | cmdlen = cmdsize = 0; |
451 | command = NULL; |
452 | |
453 | while (argc) { |
454 | while (*p) { |
455 | if (cmdlen >= cmdsize) { |
456 | cmdsize = cmdlen + 512; |
3d88e64d |
457 | command = sresize(command, cmdsize, char); |
385528da |
458 | } |
459 | command[cmdlen++]=*p++; |
460 | } |
461 | if (cmdlen >= cmdsize) { |
462 | cmdsize = cmdlen + 512; |
3d88e64d |
463 | command = sresize(command, cmdsize, char); |
385528da |
464 | } |
465 | command[cmdlen++]=' '; /* always add trailing space */ |
466 | if (--argc) p = *++argv; |
32874aea |
467 | } |
385528da |
468 | if (cmdlen) command[--cmdlen]='\0'; |
469 | /* change trailing blank to NUL */ |
4a693cfc |
470 | conf_set_str(conf, CONF_remote_cmd, command); |
471 | conf_set_str(conf, CONF_remote_cmd2, ""); |
472 | conf_set_int(conf, CONF_nopty, TRUE); /* command => no tty */ |
385528da |
473 | |
32874aea |
474 | break; /* done with cmdline */ |
475 | } |
12dc4ec0 |
476 | } |
477 | } |
478 | |
86256dc6 |
479 | if (errors) |
480 | return 1; |
481 | |
4a693cfc |
482 | if (!conf_launchable(conf) || !(got_host || loaded_session)) { |
32874aea |
483 | usage(); |
d8426c54 |
484 | } |
d8426c54 |
485 | |
449925a6 |
486 | /* |
4a693cfc |
487 | * Muck about with the hostname in various ways. |
449925a6 |
488 | */ |
489 | { |
4a693cfc |
490 | char *hostbuf = dupstr(conf_get_str(conf, CONF_host)); |
491 | char *host = hostbuf; |
492 | char *p, *q; |
493 | |
494 | /* |
495 | * Trim leading whitespace. |
496 | */ |
497 | host += strspn(host, " \t"); |
449925a6 |
498 | |
4a693cfc |
499 | /* |
500 | * See if host is of the form user@host, and separate out |
501 | * the username if so. |
502 | */ |
503 | if (host[0] != '\0') { |
504 | char *atsign = strrchr(host, '@'); |
505 | if (atsign) { |
506 | *atsign = '\0'; |
507 | conf_set_str(conf, CONF_username, host); |
508 | host = atsign + 1; |
449925a6 |
509 | } |
449925a6 |
510 | } |
4a693cfc |
511 | |
512 | /* |
513 | * Trim off a colon suffix if it's there. |
514 | */ |
515 | host[strcspn(host, ":")] = '\0'; |
516 | |
517 | /* |
518 | * Remove any remaining whitespace. |
519 | */ |
520 | p = hostbuf; |
521 | q = host; |
522 | while (*q) { |
523 | if (*q != ' ' && *q != '\t') |
524 | *p++ = *q; |
525 | q++; |
526 | } |
527 | *p = '\0'; |
528 | |
529 | conf_set_str(conf, CONF_host, hostbuf); |
530 | sfree(hostbuf); |
449925a6 |
531 | } |
532 | |
533 | /* |
c0a81592 |
534 | * Perform command-line overrides on session configuration. |
535 | */ |
4a693cfc |
536 | cmdline_run_saved(conf); |
c0a81592 |
537 | |
538 | /* |
4d1cdf5d |
539 | * Apply subsystem status. |
540 | */ |
541 | if (use_subsystem) |
4a693cfc |
542 | conf_set_int(conf, CONF_ssh_subsys, TRUE); |
cae0c023 |
543 | |
4a693cfc |
544 | if (!*conf_get_str(conf, CONF_remote_cmd) && |
545 | !*conf_get_str(conf, CONF_remote_cmd2) && |
546 | !*conf_get_str(conf, CONF_ssh_nc_host)) |
32874aea |
547 | flags |= FLAG_INTERACTIVE; |
67779be7 |
548 | |
12dc4ec0 |
549 | /* |
550 | * Select protocol. This is farmed out into a table in a |
551 | * separate file to enable an ssh-free variant. |
552 | */ |
4a693cfc |
553 | back = backend_from_proto(conf_get_int(conf, CONF_protocol)); |
9e164d82 |
554 | if (back == NULL) { |
555 | fprintf(stderr, |
556 | "Internal fault: Unsupported protocol found\n"); |
557 | return 1; |
12dc4ec0 |
558 | } |
559 | |
560 | /* |
8cb9c947 |
561 | * Select port. |
562 | */ |
563 | if (portnumber != -1) |
4a693cfc |
564 | conf_set_int(conf, CONF_port, portnumber); |
8cb9c947 |
565 | |
7440fd44 |
566 | sk_init(); |
567 | if (p_WSAEventSelect == NULL) { |
568 | fprintf(stderr, "Plink requires WinSock 2\n"); |
12dc4ec0 |
569 | return 1; |
570 | } |
571 | |
4a693cfc |
572 | logctx = log_init(NULL, conf); |
1626d169 |
573 | console_provide_logctx(logctx); |
574 | |
12dc4ec0 |
575 | /* |
576 | * Start up the connection. |
577 | */ |
8df7a775 |
578 | netevent = CreateEvent(NULL, FALSE, FALSE, NULL); |
12dc4ec0 |
579 | { |
cbe2d68f |
580 | const char *error; |
12dc4ec0 |
581 | char *realhost; |
2184a5d9 |
582 | /* nodelay is only useful if stdin is a character device (console) */ |
4a693cfc |
583 | int nodelay = conf_get_int(conf, CONF_tcp_nodelay) && |
2184a5d9 |
584 | (GetFileType(GetStdHandle(STD_INPUT_HANDLE)) == FILE_TYPE_CHAR); |
12dc4ec0 |
585 | |
4a693cfc |
586 | error = back->init(NULL, &backhandle, conf, |
587 | conf_get_str(conf, CONF_host), |
588 | conf_get_int(conf, CONF_port), |
589 | &realhost, nodelay, |
590 | conf_get_int(conf, CONF_tcp_keepalives)); |
12dc4ec0 |
591 | if (error) { |
592 | fprintf(stderr, "Unable to open connection:\n%s", error); |
593 | return 1; |
594 | } |
a8327734 |
595 | back->provide_logctx(backhandle, logctx); |
6e1ebb76 |
596 | sfree(realhost); |
12dc4ec0 |
597 | } |
8df7a775 |
598 | connopen = 1; |
12dc4ec0 |
599 | |
0965bee0 |
600 | inhandle = GetStdHandle(STD_INPUT_HANDLE); |
12dc4ec0 |
601 | outhandle = GetStdHandle(STD_OUTPUT_HANDLE); |
fe50e814 |
602 | errhandle = GetStdHandle(STD_ERROR_HANDLE); |
34292b1d |
603 | |
12dc4ec0 |
604 | /* |
12dc4ec0 |
605 | * Turn off ECHO and LINE input modes. We don't care if this |
606 | * call fails, because we know we aren't necessarily running in |
607 | * a console. |
608 | */ |
f8efb0d5 |
609 | GetConsoleMode(inhandle, &orig_console_mode); |
610 | SetConsoleMode(inhandle, ENABLE_PROCESSED_INPUT); |
611 | |
34292b1d |
612 | /* |
613 | * Pass the output handles to the handle-handling subsystem. |
614 | * (The input one we leave until we're through the |
615 | * authentication process.) |
616 | */ |
bdebd7e9 |
617 | stdout_handle = handle_output_new(outhandle, stdouterr_sent, NULL, 0); |
618 | stderr_handle = handle_output_new(errhandle, stdouterr_sent, NULL, 0); |
34292b1d |
619 | |
f8efb0d5 |
620 | main_thread_id = GetCurrentThreadId(); |
621 | |
12dc4ec0 |
622 | sending = FALSE; |
5471d09a |
623 | |
39934deb |
624 | now = GETTICKCOUNT(); |
625 | |
12dc4ec0 |
626 | while (1) { |
34292b1d |
627 | int nhandles; |
628 | HANDLE *handles; |
32874aea |
629 | int n; |
39934deb |
630 | DWORD ticks; |
32874aea |
631 | |
51470298 |
632 | if (!sending && back->sendok(backhandle)) { |
bdebd7e9 |
633 | stdin_handle = handle_input_new(inhandle, stdin_gotdata, NULL, |
634 | 0); |
32874aea |
635 | sending = TRUE; |
636 | } |
637 | |
39934deb |
638 | if (run_timers(now, &next)) { |
38bf0b12 |
639 | then = now; |
640 | now = GETTICKCOUNT(); |
641 | if (now - then > next - then) |
642 | ticks = 0; |
643 | else |
644 | ticks = next - now; |
39934deb |
645 | } else { |
646 | ticks = INFINITE; |
647 | } |
648 | |
34292b1d |
649 | handles = handle_get_events(&nhandles); |
650 | handles = sresize(handles, nhandles+1, HANDLE); |
651 | handles[nhandles] = netevent; |
652 | n = MsgWaitForMultipleObjects(nhandles+1, handles, FALSE, ticks, |
c44bf5bd |
653 | QS_POSTMESSAGE); |
34292b1d |
654 | if ((unsigned)(n - WAIT_OBJECT_0) < (unsigned)nhandles) { |
655 | handle_got_event(handles[n - WAIT_OBJECT_0]); |
656 | } else if (n == WAIT_OBJECT_0 + nhandles) { |
32874aea |
657 | WSANETWORKEVENTS things; |
8df7a775 |
658 | SOCKET socket; |
d2371c81 |
659 | extern SOCKET first_socket(int *), next_socket(int *); |
8df7a775 |
660 | extern int select_result(WPARAM, LPARAM); |
32874aea |
661 | int i, socketstate; |
662 | |
663 | /* |
664 | * We must not call select_result() for any socket |
665 | * until we have finished enumerating within the tree. |
666 | * This is because select_result() may close the socket |
667 | * and modify the tree. |
668 | */ |
669 | /* Count the active sockets. */ |
670 | i = 0; |
671 | for (socket = first_socket(&socketstate); |
672 | socket != INVALID_SOCKET; |
673 | socket = next_socket(&socketstate)) i++; |
674 | |
675 | /* Expand the buffer if necessary. */ |
676 | if (i > sksize) { |
677 | sksize = i + 16; |
3d88e64d |
678 | sklist = sresize(sklist, sksize, SOCKET); |
32874aea |
679 | } |
680 | |
681 | /* Retrieve the sockets into sklist. */ |
682 | skcount = 0; |
683 | for (socket = first_socket(&socketstate); |
684 | socket != INVALID_SOCKET; |
d2371c81 |
685 | socket = next_socket(&socketstate)) { |
32874aea |
686 | sklist[skcount++] = socket; |
687 | } |
688 | |
689 | /* Now we're done enumerating; go through the list. */ |
690 | for (i = 0; i < skcount; i++) { |
691 | WPARAM wp; |
692 | socket = sklist[i]; |
693 | wp = (WPARAM) socket; |
7440fd44 |
694 | if (!p_WSAEnumNetworkEvents(socket, NULL, &things)) { |
64cdd21b |
695 | static const struct { int bit, mask; } eventtypes[] = { |
696 | {FD_CONNECT_BIT, FD_CONNECT}, |
697 | {FD_READ_BIT, FD_READ}, |
698 | {FD_CLOSE_BIT, FD_CLOSE}, |
699 | {FD_OOB_BIT, FD_OOB}, |
700 | {FD_WRITE_BIT, FD_WRITE}, |
701 | {FD_ACCEPT_BIT, FD_ACCEPT}, |
702 | }; |
703 | int e; |
704 | |
32874aea |
705 | noise_ultralight(socket); |
706 | noise_ultralight(things.lNetworkEvents); |
d74d141c |
707 | |
64cdd21b |
708 | for (e = 0; e < lenof(eventtypes); e++) |
709 | if (things.lNetworkEvents & eventtypes[e].mask) { |
710 | LPARAM lp; |
711 | int err = things.iErrorCode[eventtypes[e].bit]; |
712 | lp = WSAMAKESELECTREPLY(eventtypes[e].mask, err); |
713 | connopen &= select_result(wp, lp); |
714 | } |
8df7a775 |
715 | } |
716 | } |
34292b1d |
717 | } else if (n == WAIT_OBJECT_0 + nhandles + 1) { |
c44bf5bd |
718 | MSG msg; |
719 | while (PeekMessage(&msg, INVALID_HANDLE_VALUE, |
720 | WM_AGENT_CALLBACK, WM_AGENT_CALLBACK, |
721 | PM_REMOVE)) { |
722 | struct agent_callback *c = (struct agent_callback *)msg.lParam; |
723 | c->callback(c->callback_ctx, c->data, c->len); |
724 | sfree(c); |
725 | } |
5471d09a |
726 | } |
39934deb |
727 | |
728 | if (n == WAIT_TIMEOUT) { |
729 | now = next; |
730 | } else { |
731 | now = GETTICKCOUNT(); |
732 | } |
733 | |
34292b1d |
734 | sfree(handles); |
735 | |
736 | if (sending) |
737 | handle_unthrottle(stdin_handle, back->sendbuffer(backhandle)); |
738 | |
6226c939 |
739 | if ((!connopen || !back->connected(backhandle)) && |
34292b1d |
740 | handle_backlog(stdout_handle) + handle_backlog(stderr_handle) == 0) |
32874aea |
741 | break; /* we closed the connection */ |
12dc4ec0 |
742 | } |
51470298 |
743 | exitcode = back->exitcode(backhandle); |
d8d6c7e5 |
744 | if (exitcode < 0) { |
745 | fprintf(stderr, "Remote process exit code unavailable\n"); |
746 | exitcode = 1; /* this is an error condition */ |
747 | } |
7440fd44 |
748 | cleanup_exit(exitcode); |
749 | return 0; /* placate compiler warning */ |
12dc4ec0 |
750 | } |