PSCP now uses the modern SFTP protocol if it can, and falls back to

scp1 if it can't. Currently not very tested - I checked it in as
soon as it completed a successful recursive copy in both directions.
Also, one known bug: you can't specify a remote wildcard, because by
the nature of SFTP we'll need to implement the wildcard engine on
the client side. I do intend to do this (and use the same wildcard
engine in PSFTP as well) but I haven't got round to it yet.

[originally from svn r1208]

plink.c

@@ -471,6 +471,7 @@ int main(int argc, char **argv)
 		    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);