printf("PuTTY Link: command-line connection utility\n");
printf("%s\n", ver);
printf("Usage: plink [options] [user@]host [command]\n");
+ 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");
} else if (n == 1) {
reading = 0;
noise_ultralight(idata.len);
- if (idata.len > 0) {
- back->send(idata.buffer, idata.len);
- } else {
- back->special(TS_EOF);
+ if (connopen && back->socket() != NULL) {
+ if (idata.len > 0) {
+ back->send(idata.buffer, idata.len);
+ } else {
+ back->special(TS_EOF);
+ }
}
} else if (n == 2) {
odata.busy = 0;
bufchain_consume(&stdout_data, odata.lenwritten);
if (bufchain_size(&stdout_data) > 0)
try_output(0);
- back->unthrottle(bufchain_size(&stdout_data) +
- bufchain_size(&stderr_data));
+ if (connopen && back->socket() != NULL) {
+ back->unthrottle(bufchain_size(&stdout_data) +
+ bufchain_size(&stderr_data));
+ }
} else if (n == 3) {
edata.busy = 0;
if (!edata.writeret) {
bufchain_consume(&stderr_data, edata.lenwritten);
if (bufchain_size(&stderr_data) > 0)
try_output(1);
- back->unthrottle(bufchain_size(&stdout_data) +
- bufchain_size(&stderr_data));
+ if (connopen && back->socket() != NULL) {
+ back->unthrottle(bufchain_size(&stdout_data) +
+ bufchain_size(&stderr_data));
+ }
}
if (!reading && back->sendbuffer() < MAX_STDIN_BACKLOG) {
SetEvent(idata.eventback);
reading = 1;
}
- if (!connopen || back->socket() == NULL)
+ if ((!connopen || back->socket() == NULL) &&
+ bufchain_size(&stdout_data) == 0 &&
+ bufchain_size(&stderr_data) == 0)
break; /* we closed the connection */
}
WSACleanup();