Handle packets with no type byte by returning SSH_MSG_UNIMPLEMENTED.

[PuTTY.git] / unix / uxplink.c

diff --git a/unix/uxplink.c b/unix/uxplink.c
index 8351a6ea7280528acbe8660a0db18e66237823c0..b8c554894002033dcb0e5583fd0285b9223bf11c 100644 (file)
--- a/unix/uxplink.c
+++ b/unix/uxplink.c
@@ -25,7 +25,7 @@
 
 #define MAX_STDIN_BACKLOG 4096
 
-void *logctx;
+static void *logctx;
 
 static struct termios orig_termios;
 
@@ -690,6 +690,10 @@ int main(int argc, char **argv)
                }
            } else if (!strcmp(p, "-shareexists")) {
                 just_test_share_exists = TRUE;
+           } else if (!strcmp(p, "-fuzznet")) {
+               conf_set_int(conf, CONF_proxy_type, PROXY_FUZZ);
+               conf_set_str(conf, CONF_proxy_telnet_command,
+                            "%host");
            } else {
                fprintf(stderr, "plink: unknown option \"%s\"\n", p);
                errors = 1;
@@ -988,6 +992,11 @@ int main(int argc, char **argv)
        /* nodelay is only useful if stdin is a terminal device */
        int nodelay = conf_get_int(conf, CONF_tcp_nodelay) && isatty(0);
 
+       /* This is a good place for a fuzzer to fork us. */
+#ifdef __AFL_HAVE_MANUAL_CONTROL
+       __AFL_INIT();
+#endif
+
        error = back->init(NULL, &backhandle, conf,
                           conf_get_str(conf, CONF_host),
                           conf_get_int(conf, CONF_port),