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 DWORD orig_console_mode
;
39 void begin_session(void) {
41 SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE
), ENABLE_PROCESSED_INPUT
);
43 SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE
), orig_console_mode
);
51 while (reap
< inbuf_head
) {
52 if (!WriteFile(outhandle
, inbuf
+reap
, inbuf_head
-reap
, &ret
, NULL
))
53 return; /* give up in panic */
65 static int get_password(const char *prompt
, char *str
, int maxlen
)
70 #if 0 /* this allows specifying a password some other way */
72 static int tried_once
= 0;
77 strncpy(str
, password
, maxlen
);
85 hin
= GetStdHandle(STD_INPUT_HANDLE
);
86 hout
= GetStdHandle(STD_OUTPUT_HANDLE
);
87 if (hin
== INVALID_HANDLE_VALUE
|| hout
== INVALID_HANDLE_VALUE
) {
88 fprintf(stderr
, "Cannot get standard input/output handles");
92 GetConsoleMode(hin
, &savemode
);
93 SetConsoleMode(hin
, (savemode
& (~ENABLE_ECHO_INPUT
)) |
94 ENABLE_PROCESSED_INPUT
| ENABLE_LINE_INPUT
);
96 WriteFile(hout
, prompt
, strlen(prompt
), &i
, NULL
);
97 ReadFile(hin
, str
, maxlen
-1, &i
, NULL
);
99 SetConsoleMode(hin
, savemode
);
101 if ((int)i
> maxlen
) i
= maxlen
-1; else i
= i
- 2;
104 WriteFile(hout
, "\r\n", 2, &i
, NULL
);
109 int WINAPI
stdin_read_thread(void *param
) {
110 struct input_data
*idata
= (struct input_data
*)param
;
113 inhandle
= GetStdHandle(STD_INPUT_HANDLE
);
115 while (ReadFile(inhandle
, idata
->buffer
, sizeof(idata
->buffer
),
116 &idata
->len
, NULL
)) {
117 SetEvent(idata
->event
);
121 SetEvent(idata
->event
);
126 int main(int argc
, char **argv
) {
129 WSAEVENT netevent
, stdinevent
;
133 struct input_data idata
;
136 ssh_get_password
= get_password
;
140 * Process the command line.
142 default_protocol
= DEFAULT_PROTOCOL
;
143 default_port
= DEFAULT_PORT
;
148 if (!strcmp(p
, "-ssh")) {
149 default_protocol
= cfg
.protocol
= PROT_SSH
;
150 default_port
= cfg
.port
= 22;
151 } else if (!strcmp(p
, "-v")) {
152 flags
|= FLAG_VERBOSE
;
153 } else if (!strcmp(p
, "-log")) {
154 logfile
= "putty.log";
160 * If the hostname starts with "telnet:", set the
161 * protocol to Telnet and process the string as a
164 if (!strncmp(q
, "telnet:", 7)) {
168 if (q
[0] == '/' && q
[1] == '/')
170 cfg
.protocol
= PROT_TELNET
;
172 while (*p
&& *p
!= ':' && *p
!= '/') p
++;
180 strncpy (cfg
.host
, q
, sizeof(cfg
.host
)-1);
181 cfg
.host
[sizeof(cfg
.host
)-1] = '\0';
184 * Three cases. Either (a) there's a nonzero
185 * length string followed by an @, in which
186 * case that's user and the remainder is host.
187 * Or (b) there's only one string, not counting
188 * a potential initial @, and it exists in the
189 * saved-sessions database. Or (c) only one
190 * string and it _doesn't_ exist in the
193 char *r
= strrchr(p
, '@');
194 if (r
== p
) p
++, r
= NULL
; /* discount initial @ */
200 if (cfg
.host
[0] == '\0') {
201 /* No settings for this host; use defaults */
202 strncpy(cfg
.host
, p
, sizeof(cfg
.host
)-1);
203 cfg
.host
[sizeof(cfg
.host
)-1] = '\0';
208 strncpy(cfg
.username
, p
, sizeof(cfg
.username
)-1);
209 cfg
.username
[sizeof(cfg
.username
)-1] = '\0';
210 strncpy(cfg
.host
, r
, sizeof(cfg
.host
)-1);
211 cfg
.host
[sizeof(cfg
.host
)-1] = '\0';
216 int len
= sizeof(cfg
.remote_cmd
) - 1;
217 char *cp
= cfg
.remote_cmd
;
220 strncpy(cp
, p
, len
); cp
[len
] = '\0';
221 len2
= strlen(cp
); len
-= len2
; cp
+= len2
;
225 strncpy(cp
, *++argv
, len
); cp
[len
] = '\0';
226 len2
= strlen(cp
); len
-= len2
; cp
+= len2
;
228 cfg
.nopty
= TRUE
; /* command => no terminal */
229 cfg
.ldisc_term
= TRUE
; /* use stdin like a line buffer */
230 break; /* done with cmdline */
235 if (!*cfg
.remote_cmd
)
236 flags
|= FLAG_INTERACTIVE
;
239 * Select protocol. This is farmed out into a table in a
240 * separate file to enable an ssh-free variant.
245 for (i
= 0; backends
[i
].backend
!= NULL
; i
++)
246 if (backends
[i
].protocol
== cfg
.protocol
) {
247 back
= backends
[i
].backend
;
251 fprintf(stderr
, "Internal fault: Unsupported protocol found\n");
257 * Initialise WinSock.
259 winsock_ver
= MAKEWORD(2, 0);
260 if (WSAStartup(winsock_ver
, &wsadata
)) {
261 MessageBox(NULL
, "Unable to initialise WinSock", "WinSock Error",
262 MB_OK
| MB_ICONEXCLAMATION
);
265 if (LOBYTE(wsadata
.wVersion
) != 2 || HIBYTE(wsadata
.wVersion
) != 0) {
266 MessageBox(NULL
, "WinSock version is incompatible with 2.0",
267 "WinSock Error", MB_OK
| MB_ICONEXCLAMATION
);
273 * Start up the connection.
279 error
= back
->init (NULL
, cfg
.host
, cfg
.port
, &realhost
);
281 fprintf(stderr
, "Unable to open connection:\n%s", error
);
286 netevent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
287 stdinevent
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
289 GetConsoleMode(GetStdHandle(STD_INPUT_HANDLE
), &orig_console_mode
);
290 SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE
), ENABLE_PROCESSED_INPUT
);
291 outhandle
= GetStdHandle(STD_OUTPUT_HANDLE
);
294 * Now we must send the back end oodles of stuff.
296 socket
= back
->socket();
298 * Turn off ECHO and LINE input modes. We don't care if this
299 * call fails, because we know we aren't necessarily running in
302 WSAEventSelect(socket
, netevent
, FD_READ
| FD_CLOSE
);
303 handles
[0] = netevent
;
304 handles
[1] = stdinevent
;
308 n
= WaitForMultipleObjects(2, handles
, FALSE
, INFINITE
);
310 WSANETWORKEVENTS things
;
311 if (!WSAEnumNetworkEvents(socket
, netevent
, &things
)) {
312 if (things
.lNetworkEvents
& FD_READ
)
313 back
->msg(0, FD_READ
);
314 if (things
.lNetworkEvents
& FD_CLOSE
) {
315 back
->msg(0, FD_CLOSE
);
320 if (!sending
&& back
->sendok()) {
322 * Create a separate thread to read from stdin.
323 * This is a total pain, but I can't find another
326 * - an overlapped ReadFile or ReadFileEx just
327 * doesn't happen; we get failure from
328 * ReadFileEx, and ReadFile blocks despite being
329 * given an OVERLAPPED structure. Perhaps we
330 * can't do overlapped reads on consoles. WHY
333 * - WaitForMultipleObjects(netevent, console)
334 * doesn't work, because it signals the console
335 * when _anything_ happens, including mouse
336 * motions and other things that don't cause
337 * data to be readable - so we're back to
340 idata
.event
= stdinevent
;
341 if (!CreateThread(NULL
, 0, stdin_read_thread
,
342 &idata
, 0, &threadid
)) {
343 fprintf(stderr
, "Unable to create second thread\n");
350 back
->send(idata
.buffer
, idata
.len
);
352 back
->special(TS_EOF
);