X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/09bdfcbbd49c10c9e5ecf8998968ad1fc724065b..a9c623cacbef2958f2282e5b66314b5e9cee9b62:/unix/uxplink.c

diff --git a/unix/uxplink.c b/unix/uxplink.c
index d069e045..16919337 100644
--- a/unix/uxplink.c
+++ b/unix/uxplink.c
@@ -170,8 +170,6 @@ int from_backend(void *frontend_handle, int is_stderr,
 {
     int osize, esize;
 
-    assert(len > 0);
-
     if (is_stderr) {
 	bufchain_add(&stderr_data, data, len);
 	try_output(1);
@@ -220,11 +218,12 @@ static void usage(void)
     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("  -D [listen-IP:]listen-port\n");
+    printf("            Dynamic SOCKS-based port forwarding\n");
+    printf("  -L [listen-IP:]listen-port:host:port\n");
+    printf("            Forward local port to remote address\n");
+    printf("  -R [listen-IP:]listen-port:host:port\n");
+    printf("            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");