+				printf("ERROR: Invalid buffer size '%s'. Must be >= 1.\n",
+				printf("ERROR: Invalid port '%s'. Must be 1..65535.\n",
+				printf("ERROR: Invalid random size '%s'. Must be >= 1.\n",
+				printf("ERROR: Invalid rekey count '%s'. Must be 1..%d.\n",
WARNING: else is not generally useful after a break or return
WARNING: line length of 82 exceeds 80 columns
WARNING: line length of 87 exceeds 80 columns
WARNING: line length of 90 exceeds 80 columns
WARNING: line length of 91 exceeds 80 columns
WARNING: line length of 94 exceeds 80 columns