2 * PLink - a command-line (stdin/stdout) variant of PuTTY.
12 #define PUTTY_DO_GLOBALS /* actually _define_ globals */
15 void fatalbox (char *p, ...) {
17 fprintf(stderr, "FATAL ERROR: ", p);
19 vfprintf(stderr, p, ap);
25 void connection_fatal (char *p, ...) {
27 fprintf(stderr, "FATAL ERROR: ", p);
29 vfprintf(stderr, p, ap);
37 * Stubs for linking with other modules.
39 void write_clip (void *data, int len) { }
40 void term_deselect(void) { }
43 DWORD orig_console_mode;
45 void begin_session(void) {
47 SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), ENABLE_PROCESSED_INPUT);
49 SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), orig_console_mode);
57 while (reap < inbuf_head) {
58 if (!WriteFile(outhandle, inbuf+reap, inbuf_head-reap, &ret, NULL))
59 return; /* give up in panic */
71 static int get_password(const char *prompt, char *str, int maxlen)
76 #if 0 /* this allows specifying a password some other way */
78 static int tried_once = 0;
83 strncpy(str, password, maxlen);
91 hin = GetStdHandle(STD_INPUT_HANDLE);
92 hout = GetStdHandle(STD_OUTPUT_HANDLE);
93 if (hin == INVALID_HANDLE_VALUE || hout == INVALID_HANDLE_VALUE) {
94 fprintf(stderr, "Cannot get standard input/output handles");
98 GetConsoleMode(hin, &savemode);
99 SetConsoleMode(hin, (savemode & (~ENABLE_ECHO_INPUT)) |
100 ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT);
102 WriteFile(hout, prompt, strlen(prompt), &i, NULL);
103 ReadFile(hin, str, maxlen-1, &i, NULL);
105 SetConsoleMode(hin, savemode);
107 if ((int)i > maxlen) i = maxlen-1; else i = i - 2;
110 WriteFile(hout, "\r\n", 2, &i, NULL);
115 int WINAPI stdin_read_thread(void *param) {
116 struct input_data *idata = (struct input_data *)param;
119 inhandle = GetStdHandle(STD_INPUT_HANDLE);
121 while (ReadFile(inhandle, idata->buffer, sizeof(idata->buffer),
122 &idata->len, NULL)) {
123 SetEvent(idata->event);
127 SetEvent(idata->event);
132 int main(int argc, char **argv) {
135 WSAEVENT netevent, stdinevent;
139 struct input_data idata;
142 ssh_get_password = get_password;
146 * Process the command line.
148 default_protocol = DEFAULT_PROTOCOL;
149 default_port = DEFAULT_PORT;
154 if (!strcmp(p, "-ssh")) {
155 default_protocol = cfg.protocol = PROT_SSH;
156 default_port = cfg.port = 22;
157 } else if (!strcmp(p, "-v")) {
158 flags |= FLAG_VERBOSE;
159 } else if (!strcmp(p, "-log")) {
160 logfile = "putty.log";
166 * If the hostname starts with "telnet:", set the
167 * protocol to Telnet and process the string as a
170 if (!strncmp(q, "telnet:", 7)) {
174 if (q[0] == '/' && q[1] == '/')
176 cfg.protocol = PROT_TELNET;
178 while (*p && *p != ':' && *p != '/') p++;
186 strncpy (cfg.host, q, sizeof(cfg.host)-1);
187 cfg.host[sizeof(cfg.host)-1] = '\0';
190 * Three cases. Either (a) there's a nonzero
191 * length string followed by an @, in which
192 * case that's user and the remainder is host.
193 * Or (b) there's only one string, not counting
194 * a potential initial @, and it exists in the
195 * saved-sessions database. Or (c) only one
196 * string and it _doesn't_ exist in the
199 char *r = strrchr(p, '@');
200 if (r == p) p++, r = NULL; /* discount initial @ */
206 if (cfg.host[0] == '\0') {
207 /* No settings for this host; use defaults */
208 strncpy(cfg.host, p, sizeof(cfg.host)-1);
209 cfg.host[sizeof(cfg.host)-1] = '\0';
214 strncpy(cfg.username, p, sizeof(cfg.username)-1);
215 cfg.username[sizeof(cfg.username)-1] = '\0';
216 strncpy(cfg.host, r, sizeof(cfg.host)-1);
217 cfg.host[sizeof(cfg.host)-1] = '\0';
222 int len = sizeof(cfg.remote_cmd) - 1;
223 char *cp = cfg.remote_cmd;
226 strncpy(cp, p, len); cp[len] = '\0';
227 len2 = strlen(cp); len -= len2; cp += len2;
231 strncpy(cp, *++argv, len); cp[len] = '\0';
232 len2 = strlen(cp); len -= len2; cp += len2;
234 cfg.nopty = TRUE; /* command => no terminal */
235 cfg.ldisc_term = TRUE; /* use stdin like a line buffer */
236 break; /* done with cmdline */
241 if (!*cfg.remote_cmd)
242 flags |= FLAG_INTERACTIVE;
245 * Select protocol. This is farmed out into a table in a
246 * separate file to enable an ssh-free variant.
251 for (i = 0; backends[i].backend != NULL; i++)
252 if (backends[i].protocol == cfg.protocol) {
253 back = backends[i].backend;
257 fprintf(stderr, "Internal fault: Unsupported protocol found\n");
263 * Initialise WinSock.
265 winsock_ver = MAKEWORD(2, 0);
266 if (WSAStartup(winsock_ver, &wsadata)) {
267 MessageBox(NULL, "Unable to initialise WinSock", "WinSock Error",
268 MB_OK | MB_ICONEXCLAMATION);
271 if (LOBYTE(wsadata.wVersion) != 2 || HIBYTE(wsadata.wVersion) != 0) {
272 MessageBox(NULL, "WinSock version is incompatible with 2.0",
273 "WinSock Error", MB_OK | MB_ICONEXCLAMATION);
279 * Start up the connection.
285 error = back->init (NULL, cfg.host, cfg.port, &realhost);
287 fprintf(stderr, "Unable to open connection:\n%s", error);
292 netevent = CreateEvent(NULL, FALSE, FALSE, NULL);
293 stdinevent = CreateEvent(NULL, FALSE, FALSE, NULL);
295 GetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), &orig_console_mode);
296 SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), ENABLE_PROCESSED_INPUT);
297 outhandle = GetStdHandle(STD_OUTPUT_HANDLE);
300 * Now we must send the back end oodles of stuff.
302 socket = back->socket();
304 * Turn off ECHO and LINE input modes. We don't care if this
305 * call fails, because we know we aren't necessarily running in
308 WSAEventSelect(socket, netevent, FD_READ | FD_CLOSE);
309 handles[0] = netevent;
310 handles[1] = stdinevent;
314 n = WaitForMultipleObjects(2, handles, FALSE, INFINITE);
316 WSANETWORKEVENTS things;
317 if (!WSAEnumNetworkEvents(socket, netevent, &things)) {
318 if (things.lNetworkEvents & FD_READ)
319 back->msg(0, FD_READ);
320 if (things.lNetworkEvents & FD_CLOSE) {
321 back->msg(0, FD_CLOSE);
326 if (!sending && back->sendok()) {
328 * Create a separate thread to read from stdin.
329 * This is a total pain, but I can't find another
332 * - an overlapped ReadFile or ReadFileEx just
333 * doesn't happen; we get failure from
334 * ReadFileEx, and ReadFile blocks despite being
335 * given an OVERLAPPED structure. Perhaps we
336 * can't do overlapped reads on consoles. WHY
339 * - WaitForMultipleObjects(netevent, console)
340 * doesn't work, because it signals the console
341 * when _anything_ happens, including mouse
342 * motions and other things that don't cause
343 * data to be readable - so we're back to
346 idata.event = stdinevent;
347 if (!CreateThread(NULL, 0, stdin_read_thread,
348 &idata, 0, &threadid)) {
349 fprintf(stderr, "Unable to create second thread\n");
356 back->send(idata.buffer, idata.len);
358 back->special(TS_EOF);