* PLink - a command-line (stdin/stdout) variant of PuTTY.
*/
-#ifndef AUTO_WINSOCK
-#include <winsock2.h>
-#endif
-#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
+#include <assert.h>
#include <stdarg.h>
#define PUTTY_DO_GLOBALS /* actually _define_ globals */
#include "storage.h"
#include "tree234.h"
+#define WM_AGENT_CALLBACK (WM_XUSER + 4)
+
#define MAX_STDIN_BACKLOG 4096
+struct agent_callback {
+ void (*callback)(void *, void *, int);
+ void *callback_ctx;
+ void *data;
+ int len;
+};
+
void fatalbox(char *p, ...)
{
va_list ap;
vfprintf(stderr, p, ap);
va_end(ap);
fputc('\n', stderr);
- WSACleanup();
- exit(1);
+ cleanup_exit(1);
+}
+void modalfatalbox(char *p, ...)
+{
+ va_list ap;
+ fprintf(stderr, "FATAL ERROR: ");
+ va_start(ap, p);
+ vfprintf(stderr, p, ap);
+ va_end(ap);
+ fputc('\n', stderr);
+ cleanup_exit(1);
}
-void connection_fatal(char *p, ...)
+void connection_fatal(void *frontend, char *p, ...)
{
va_list ap;
fprintf(stderr, "FATAL ERROR: ");
vfprintf(stderr, p, ap);
va_end(ap);
fputc('\n', stderr);
- WSACleanup();
+ cleanup_exit(1);
+}
+void cmdline_error(char *p, ...)
+{
+ va_list ap;
+ fprintf(stderr, "plink: ");
+ va_start(ap, p);
+ vfprintf(stderr, p, ap);
+ va_end(ap);
+ fputc('\n', stderr);
exit(1);
}
-static char *password = NULL;
-
HANDLE inhandle, outhandle, errhandle;
DWORD orig_console_mode;
WSAEVENT netevent;
-int term_ldisc(int mode)
+static Backend *back;
+static void *backhandle;
+static Config cfg;
+
+int term_ldisc(Terminal *term, int mode)
{
return FALSE;
}
-void ldisc_update(int echo, int edit)
+void ldisc_update(void *frontend, int echo, int edit)
{
/* Update stdin read mode to reflect changes in line discipline. */
DWORD mode;
}
}
-int from_backend(int is_stderr, char *data, int len)
+int from_backend(void *frontend_handle, int is_stderr,
+ const char *data, int len)
{
- HANDLE h = (is_stderr ? errhandle : outhandle);
int osize, esize;
if (is_stderr) {
return osize + esize;
}
+static DWORD main_thread_id;
+
+void agent_schedule_callback(void (*callback)(void *, void *, int),
+ void *callback_ctx, void *data, int len)
+{
+ struct agent_callback *c = snew(struct agent_callback);
+ c->callback = callback;
+ c->callback_ctx = callback_ctx;
+ c->data = data;
+ c->len = len;
+ PostThreadMessage(main_thread_id, WM_AGENT_CALLBACK, 0, (LPARAM)c);
+}
+
/*
* Short description of parameters.
*/
printf(" (\"host\" can also be a PuTTY saved session name)\n");
printf("Options:\n");
printf(" -v show verbose messages\n");
- printf(" -ssh force use of ssh protocol\n");
+ printf(" -load sessname Load settings from saved session\n");
+ printf(" -ssh -telnet -rlogin -raw\n");
+ printf(" force use of a particular protocol (default SSH)\n");
printf(" -P port connect to specified port\n");
- printf(" -pw passw login with specified password\n");
+ printf(" -l user connect with specified username\n");
printf(" -m file read remote command(s) from file\n");
+ printf(" -batch disable all interactive prompts\n");
+ printf("The following options only apply to SSH connections:\n");
+ printf(" -pw passw login with specified password\n");
+ printf(" -D listen-port Dynamic SOCKS-based port forwarding\n");
printf(" -L listen-port:host:port Forward local port to "
"remote address\n");
printf(" -R listen-port:host:port Forward remote port to"
" local address\n");
+ printf(" -X -x enable / disable X11 forwarding\n");
+ printf(" -A -a enable / disable agent forwarding\n");
+ printf(" -t -T enable / disable pty allocation\n");
+ printf(" -1 -2 force use of particular protocol version\n");
+ printf(" -C enable compression\n");
+ printf(" -i key private key file for authentication\n");
+ printf(" -s remote command is an SSH subsystem (SSH-2 only)\n");
exit(1);
}
} else {
events = 0;
}
- if (WSAEventSelect(skt, netevent, events) == SOCKET_ERROR) {
- switch (WSAGetLastError()) {
+ if (p_WSAEventSelect(skt, netevent, events) == SOCKET_ERROR) {
+ switch (p_WSAGetLastError()) {
case WSAENETDOWN:
return "Network is down";
default:
- return "WSAAsyncSelect(): unknown error";
+ return "WSAEventSelect(): unknown error";
}
}
return NULL;
int main(int argc, char **argv)
{
- WSADATA wsadata;
- WORD winsock_ver;
WSAEVENT stdinevent, stdoutevent, stderrevent;
HANDLE handles[4];
DWORD in_threadid, out_threadid, err_threadid;
int skcount, sksize;
int connopen;
int exitcode;
- char extra_portfwd[sizeof(cfg.portfwd)];
+ int errors;
+ int use_subsystem = 0;
ssh_get_line = console_get_line;
do_defaults(NULL, &cfg);
default_protocol = cfg.protocol;
default_port = cfg.port;
+ errors = 0;
{
/*
* Override the default protocol if PLINK_PROTOCOL is set.
while (--argc) {
char *p = *++argv;
if (*p == '-') {
- if (!strcmp(p, "-ssh")) {
- default_protocol = cfg.protocol = PROT_SSH;
- default_port = cfg.port = 22;
- } else if (!strcmp(p, "-telnet")) {
- default_protocol = cfg.protocol = PROT_TELNET;
- default_port = cfg.port = 23;
- } else if (!strcmp(p, "-rlogin")) {
- default_protocol = cfg.protocol = PROT_RLOGIN;
- default_port = cfg.port = 513;
- } else if (!strcmp(p, "-raw")) {
- default_protocol = cfg.protocol = PROT_RAW;
+ int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL),
+ 1, &cfg);
+ if (ret == -2) {
+ fprintf(stderr,
+ "plink: option \"%s\" requires an argument\n", p);
+ errors = 1;
+ } else if (ret == 2) {
+ --argc, ++argv;
+ } else if (ret == 1) {
+ continue;
} else if (!strcmp(p, "-batch")) {
- console_batch_mode = TRUE;
- } else if (!strcmp(p, "-v")) {
- flags |= FLAG_VERBOSE;
- } else if (!strcmp(p, "-log")) {
- logfile = "putty.log";
- } else if (!strcmp(p, "-pw") && argc > 1) {
- --argc, console_password = *++argv;
- } else if (!strcmp(p, "-l") && argc > 1) {
- char *username;
- --argc, username = *++argv;
- strncpy(cfg.username, username, sizeof(cfg.username));
- cfg.username[sizeof(cfg.username) - 1] = '\0';
- } else if ((!strcmp(p, "-L") || !strcmp(p, "-R")) && argc > 1) {
- char *fwd, *ptr, *q;
- int i=0;
- --argc, fwd = *++argv;
- ptr = extra_portfwd;
- /* if multiple forwards, find end of list */
- if (ptr[0]=='R' || ptr[0]=='L') {
- for (i = 0; i < sizeof(extra_portfwd) - 2; i++)
- if (ptr[i]=='\000' && ptr[i+1]=='\000')
- break;
- ptr = ptr + i + 1; /* point to next forward slot */
- }
- ptr[0] = p[1]; /* insert a 'L' or 'R' at the start */
- strncpy(ptr+1, fwd, sizeof(extra_portfwd) - i);
- q = strchr(ptr, ':');
- if (q) *q = '\t'; /* replace first : with \t */
- ptr[strlen(ptr)+1] = '\000'; /* append two '\000' */
- extra_portfwd[sizeof(extra_portfwd) - 1] = '\0';
- } else if (!strcmp(p, "-m") && argc > 1) {
- char *filename, *command;
- int cmdlen, cmdsize;
- FILE *fp;
- int c, d;
-
- --argc, filename = *++argv;
-
- cmdlen = cmdsize = 0;
- command = NULL;
- fp = fopen(filename, "r");
- if (!fp) {
- fprintf(stderr, "plink: unable to open command "
- "file \"%s\"\n", filename);
- return 1;
- }
- do {
- c = fgetc(fp);
- d = c;
- if (c == EOF)
- d = 0;
- if (cmdlen >= cmdsize) {
- cmdsize = cmdlen + 512;
- command = srealloc(command, cmdsize);
- }
- command[cmdlen++] = d;
- } while (c != EOF);
- cfg.remote_cmd_ptr = command;
- cfg.remote_cmd_ptr2 = NULL;
- cfg.nopty = TRUE; /* command => no terminal */
- } else if (!strcmp(p, "-P") && argc > 1) {
- --argc, portnumber = atoi(*++argv);
+ console_batch_mode = 1;
+ } else if (!strcmp(p, "-s")) {
+ /* Save status to write to cfg later. */
+ use_subsystem = 1;
+ } else {
+ fprintf(stderr, "plink: unknown option \"%s\"\n", p);
+ errors = 1;
}
} else if (*p) {
if (!*cfg.host) {
}
}
} else {
- int len = sizeof(cfg.remote_cmd) - 1;
- char *cp = cfg.remote_cmd;
- int len2;
-
- strncpy(cp, p, len);
- cp[len] = '\0';
- len2 = strlen(cp);
- len -= len2;
- cp += len2;
- while (--argc) {
- if (len > 0)
- len--, *cp++ = ' ';
- strncpy(cp, *++argv, len);
- cp[len] = '\0';
- len2 = strlen(cp);
- len -= len2;
- cp += len2;
+ char *command;
+ int cmdlen, cmdsize;
+ cmdlen = cmdsize = 0;
+ command = NULL;
+
+ while (argc) {
+ while (*p) {
+ if (cmdlen >= cmdsize) {
+ cmdsize = cmdlen + 512;
+ command = sresize(command, cmdsize, char);
+ }
+ command[cmdlen++]=*p++;
+ }
+ if (cmdlen >= cmdsize) {
+ cmdsize = cmdlen + 512;
+ command = sresize(command, cmdsize, char);
+ }
+ command[cmdlen++]=' '; /* always add trailing space */
+ if (--argc) p = *++argv;
}
+ if (cmdlen) command[--cmdlen]='\0';
+ /* change trailing blank to NUL */
+ cfg.remote_cmd_ptr = command;
+ cfg.remote_cmd_ptr2 = NULL;
cfg.nopty = TRUE; /* command => no terminal */
+
break; /* done with cmdline */
}
}
}
+ if (errors)
+ return 1;
+
if (!*cfg.host) {
usage();
}
}
/*
+ * Perform command-line overrides on session configuration.
+ */
+ cmdline_run_saved(&cfg);
+
+ /*
+ * Apply subsystem status.
+ */
+ if (use_subsystem)
+ cfg.ssh_subsys = TRUE;
+
+ /*
* Trim a colon suffix off the hostname if it's there.
*/
cfg.host[strcspn(cfg.host, ":")] = '\0';
+ /*
+ * Remove any remaining whitespace from the hostname.
+ */
+ {
+ int p1 = 0, p2 = 0;
+ while (cfg.host[p2] != '\0') {
+ if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') {
+ cfg.host[p1] = cfg.host[p2];
+ p1++;
+ }
+ p2++;
+ }
+ cfg.host[p1] = '\0';
+ }
+
if (!*cfg.remote_cmd_ptr)
flags |= FLAG_INTERACTIVE;
}
/*
- * Add extra port forwardings (accumulated on command line) to
- * cfg.
- */
- {
- int i;
- char *p;
- p = extra_portfwd;
- i = 0;
- while (cfg.portfwd[i])
- i += strlen(cfg.portfwd+i) + 1;
- while (*p) {
- if (strlen(p)+2 > sizeof(cfg.portfwd)-i) {
- fprintf(stderr, "Internal fault: not enough space for all"
- " port forwardings\n");
- break;
- }
- strncpy(cfg.portfwd+i, p, sizeof(cfg.portfwd)-i-1);
- i += strlen(cfg.portfwd+i) + 1;
- cfg.portfwd[i] = '\0';
- p += strlen(p)+1;
- }
- }
-
- /*
* Select port.
*/
if (portnumber != -1)
cfg.port = portnumber;
- /*
- * Initialise WinSock.
- */
- winsock_ver = MAKEWORD(2, 0);
- if (WSAStartup(winsock_ver, &wsadata)) {
- MessageBox(NULL, "Unable to initialise WinSock", "WinSock Error",
- MB_OK | MB_ICONEXCLAMATION);
- return 1;
- }
- if (LOBYTE(wsadata.wVersion) != 2 || HIBYTE(wsadata.wVersion) != 0) {
- MessageBox(NULL, "WinSock version is incompatible with 2.0",
- "WinSock Error", MB_OK | MB_ICONEXCLAMATION);
- WSACleanup();
+ sk_init();
+ if (p_WSAEventSelect == NULL) {
+ fprintf(stderr, "Plink requires WinSock 2\n");
return 1;
}
- sk_init();
/*
* Start up the connection.
*/
netevent = CreateEvent(NULL, FALSE, FALSE, NULL);
{
- char *error;
+ const char *error;
char *realhost;
/* nodelay is only useful if stdin is a character device (console) */
int nodelay = cfg.tcp_nodelay &&
(GetFileType(GetStdHandle(STD_INPUT_HANDLE)) == FILE_TYPE_CHAR);
- error = back->init(cfg.host, cfg.port, &realhost, nodelay);
+ error = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port,
+ &realhost, nodelay);
if (error) {
fprintf(stderr, "Unable to open connection:\n%s", error);
return 1;
}
+ logctx = log_init(NULL, &cfg);
+ back->provide_logctx(backhandle, logctx);
+ console_provide_logctx(logctx);
sfree(realhost);
}
connopen = 1;
GetConsoleMode(inhandle, &orig_console_mode);
SetConsoleMode(inhandle, ENABLE_PROCESSED_INPUT);
+ main_thread_id = GetCurrentThreadId();
+
/*
* Turn off ECHO and LINE input modes. We don't care if this
* call fails, because we know we aren't necessarily running in
if (!CreateThread(NULL, 0, stdout_write_thread,
&odata, 0, &out_threadid)) {
fprintf(stderr, "Unable to create output thread\n");
- exit(1);
+ cleanup_exit(1);
}
edata.event = stderrevent;
edata.eventback = CreateEvent(NULL, FALSE, FALSE, NULL);
if (!CreateThread(NULL, 0, stdout_write_thread,
&edata, 0, &err_threadid)) {
fprintf(stderr, "Unable to create error output thread\n");
- exit(1);
+ cleanup_exit(1);
}
while (1) {
int n;
- if (!sending && back->sendok()) {
+ if (!sending && back->sendok(backhandle)) {
/*
* Create a separate thread to read from stdin. This is
* a total pain, but I can't find another way to do it:
if (!CreateThread(NULL, 0, stdin_read_thread,
&idata, 0, &in_threadid)) {
fprintf(stderr, "Unable to create input thread\n");
- exit(1);
+ cleanup_exit(1);
}
sending = TRUE;
}
- n = WaitForMultipleObjects(4, handles, FALSE, INFINITE);
+ n = MsgWaitForMultipleObjects(4, handles, FALSE, INFINITE,
+ QS_POSTMESSAGE);
if (n == 0) {
WSANETWORKEVENTS things;
SOCKET socket;
/* Expand the buffer if necessary. */
if (i > sksize) {
sksize = i + 16;
- sklist = srealloc(sklist, sksize * sizeof(*sklist));
+ sklist = sresize(sklist, sksize, SOCKET);
}
/* Retrieve the sockets into sklist. */
WPARAM wp;
socket = sklist[i];
wp = (WPARAM) socket;
- if (!WSAEnumNetworkEvents(socket, NULL, &things)) {
+ if (!p_WSAEnumNetworkEvents(socket, NULL, &things)) {
static const struct { int bit, mask; } eventtypes[] = {
{FD_CONNECT_BIT, FD_CONNECT},
{FD_READ_BIT, FD_READ},
} else if (n == 1) {
reading = 0;
noise_ultralight(idata.len);
- if (connopen && back->socket() != NULL) {
+ if (connopen && back->socket(backhandle) != NULL) {
if (idata.len > 0) {
- back->send(idata.buffer, idata.len);
+ back->send(backhandle, idata.buffer, idata.len);
} else {
- back->special(TS_EOF);
+ back->special(backhandle, TS_EOF);
}
}
} else if (n == 2) {
odata.busy = 0;
if (!odata.writeret) {
fprintf(stderr, "Unable to write to standard output\n");
- exit(0);
+ cleanup_exit(0);
}
bufchain_consume(&stdout_data, odata.lenwritten);
if (bufchain_size(&stdout_data) > 0)
try_output(0);
- if (connopen && back->socket() != NULL) {
- back->unthrottle(bufchain_size(&stdout_data) +
+ if (connopen && back->socket(backhandle) != NULL) {
+ back->unthrottle(backhandle, bufchain_size(&stdout_data) +
bufchain_size(&stderr_data));
}
} else if (n == 3) {
edata.busy = 0;
if (!edata.writeret) {
fprintf(stderr, "Unable to write to standard output\n");
- exit(0);
+ cleanup_exit(0);
}
bufchain_consume(&stderr_data, edata.lenwritten);
if (bufchain_size(&stderr_data) > 0)
try_output(1);
- if (connopen && back->socket() != NULL) {
- back->unthrottle(bufchain_size(&stdout_data) +
+ if (connopen && back->socket(backhandle) != NULL) {
+ back->unthrottle(backhandle, bufchain_size(&stdout_data) +
bufchain_size(&stderr_data));
}
+ } else if (n == 4) {
+ MSG msg;
+ while (PeekMessage(&msg, INVALID_HANDLE_VALUE,
+ WM_AGENT_CALLBACK, WM_AGENT_CALLBACK,
+ PM_REMOVE)) {
+ struct agent_callback *c = (struct agent_callback *)msg.lParam;
+ c->callback(c->callback_ctx, c->data, c->len);
+ sfree(c);
+ }
}
- if (!reading && back->sendbuffer() < MAX_STDIN_BACKLOG) {
+ if (!reading && back->sendbuffer(backhandle) < MAX_STDIN_BACKLOG) {
SetEvent(idata.eventback);
reading = 1;
}
- if ((!connopen || back->socket() == NULL) &&
+ if ((!connopen || back->socket(backhandle) == NULL) &&
bufchain_size(&stdout_data) == 0 &&
bufchain_size(&stderr_data) == 0)
break; /* we closed the connection */
}
- WSACleanup();
- exitcode = back->exitcode();
+ exitcode = back->exitcode(backhandle);
if (exitcode < 0) {
fprintf(stderr, "Remote process exit code unavailable\n");
exitcode = 1; /* this is an error condition */
}
- return exitcode;
+ cleanup_exit(exitcode);
+ return 0; /* placate compiler warning */
}
projects / u / mdw / putty / blobdiff