2 * PLink - a command-line (stdin/stdout) variant of PuTTY.
10 #define PUTTY_DO_GLOBALS /* actually _define_ globals */
13 void fatalbox (char *p, ...) {
15 fprintf(stderr, "FATAL ERROR: ", p);
17 vfprintf(stderr, p, ap);
32 while (reap < inbuf_head) {
33 if (!WriteFile(outhandle, inbuf+reap, inbuf_head-reap, &ret, NULL))
34 return; /* give up in panic */
46 int WINAPI stdin_read_thread(void *param) {
47 struct input_data *idata = (struct input_data *)param;
50 inhandle = GetStdHandle(STD_INPUT_HANDLE);
52 while (ReadFile(inhandle, idata->buffer, sizeof(idata->buffer),
54 SetEvent(idata->event);
58 SetEvent(idata->event);
63 int main(int argc, char **argv) {
66 WSAEVENT netevent, stdinevent;
70 struct input_data idata;
73 flags = FLAG_CONNECTION;
75 * Process the command line.
77 default_protocol = DEFAULT_PROTOCOL;
78 default_port = DEFAULT_PORT;
83 if (!strcmp(p, "-ssh")) {
84 default_protocol = cfg.protocol = PROT_SSH;
85 default_port = cfg.port = 22;
86 } else if (!strcmp(p, "-log")) {
87 logfile = "putty.log";
93 * If the hostname starts with "telnet:", set the
94 * protocol to Telnet and process the string as a
97 if (!strncmp(q, "telnet:", 7)) {
101 if (q[0] == '/' && q[1] == '/')
103 cfg.protocol = PROT_TELNET;
105 while (*p && *p != ':' && *p != '/') p++;
113 strncpy (cfg.host, q, sizeof(cfg.host)-1);
114 cfg.host[sizeof(cfg.host)-1] = '\0';
117 * Three cases. Either (a) there's a nonzero
118 * length string followed by an @, in which
119 * case that's user and the remainder is host.
120 * Or (b) there's only one string, not counting
121 * a potential initial @, and it exists in the
122 * saved-sessions database. Or (c) only one
123 * string and it _doesn't_ exist in the
126 char *r = strrchr(p, '@');
127 if (r == p) p++, r = NULL; /* discount initial @ */
133 if (cfg.host[0] == '\0') {
134 /* No settings for this host; use defaults */
135 strncpy(cfg.host, p, sizeof(cfg.host)-1);
136 cfg.host[sizeof(cfg.host)-1] = '\0';
141 strncpy(cfg.username, p, sizeof(cfg.username)-1);
142 cfg.username[sizeof(cfg.username)-1] = '\0';
143 strncpy(cfg.host, r, sizeof(cfg.host)-1);
144 cfg.host[sizeof(cfg.host)-1] = '\0';
149 int len = sizeof(cfg.remote_cmd) - 1;
150 char *cp = cfg.remote_cmd;
153 strncpy(cp, p, len); cp[len] = '\0';
154 len2 = strlen(cp); len -= len2; cp += len2;
158 strncpy(cp, *++argv, len); cp[len] = '\0';
159 len2 = strlen(cp); len -= len2; cp += len2;
161 cfg.nopty = TRUE; /* command => no terminal */
162 cfg.ldisc_term = TRUE; /* use stdin like a line buffer */
163 break; /* done with cmdline */
169 * Select protocol. This is farmed out into a table in a
170 * separate file to enable an ssh-free variant.
175 for (i = 0; backends[i].backend != NULL; i++)
176 if (backends[i].protocol == cfg.protocol) {
177 back = backends[i].backend;
181 fprintf(stderr, "Internal fault: Unsupported protocol found\n");
187 * Initialise WinSock.
189 winsock_ver = MAKEWORD(2, 0);
190 if (WSAStartup(winsock_ver, &wsadata)) {
191 MessageBox(NULL, "Unable to initialise WinSock", "WinSock Error",
192 MB_OK | MB_ICONEXCLAMATION);
195 if (LOBYTE(wsadata.wVersion) != 2 || HIBYTE(wsadata.wVersion) != 0) {
196 MessageBox(NULL, "WinSock version is incompatible with 2.0",
197 "WinSock Error", MB_OK | MB_ICONEXCLAMATION);
203 * Start up the connection.
209 error = back->init (NULL, cfg.host, cfg.port, &realhost);
211 fprintf(stderr, "Unable to open connection:\n%s", error);
216 netevent = CreateEvent(NULL, FALSE, FALSE, NULL);
217 stdinevent = CreateEvent(NULL, FALSE, FALSE, NULL);
220 SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), ENABLE_PROCESSED_INPUT);
221 outhandle = GetStdHandle(STD_OUTPUT_HANDLE);
224 * Now we must send the back end oodles of stuff.
226 socket = back->socket();
228 * Turn off ECHO and LINE input modes. We don't care if this
229 * call fails, because we know we aren't necessarily running in
232 WSAEventSelect(socket, netevent, FD_READ | FD_CLOSE);
233 handles[0] = netevent;
234 handles[1] = stdinevent;
238 n = WaitForMultipleObjects(2, handles, FALSE, INFINITE);
240 WSANETWORKEVENTS things;
241 if (!WSAEnumNetworkEvents(socket, netevent, &things)) {
242 if (things.lNetworkEvents & FD_READ)
243 back->msg(0, FD_READ);
244 if (things.lNetworkEvents & FD_CLOSE) {
245 back->msg(0, FD_CLOSE);
250 if (!sending && back->sendok()) {
252 * Create a separate thread to read from stdin.
253 * This is a total pain, but I can't find another
256 * - an overlapped ReadFile or ReadFileEx just
257 * doesn't happen; we get failure from
258 * ReadFileEx, and ReadFile blocks despite being
259 * given an OVERLAPPED structure. Perhaps we
260 * can't do overlapped reads on consoles. WHY
263 * - WaitForMultipleObjects(netevent, console)
264 * doesn't work, because it signals the console
265 * when _anything_ happens, including mouse
266 * motions and other things that don't cause
267 * data to be readable - so we're back to
270 idata.event = stdinevent;
271 if (!CreateThread(NULL, 0, stdin_read_thread,
272 &idata, 0, &threadid)) {
273 fprintf(stderr, "Unable to create second thread\n");
280 back->send(idata.buffer, idata.len);
282 back->special(TS_EOF);