From 94e9f7e95e3898bbe8695422fc9df6cb5a1264e3 Mon Sep 17 00:00:00 2001
From: Hans Nilsson <hans@erlang.org>
Date: Tue, 19 Jun 2018 16:56:27 +0200
Subject: ftp: Disallow 'packet_size' for low-level options

---
 lib/inets/doc/src/ftp.xml | 2 +-
 lib/inets/src/ftp/ftp.erl | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

(limited to 'lib/inets')

diff --git a/lib/inets/doc/src/ftp.xml b/lib/inets/doc/src/ftp.xml
index 126f415e81..feea7b978a 100644
--- a/lib/inets/doc/src/ftp.xml
+++ b/lib/inets/doc/src/ftp.xml
@@ -553,7 +553,7 @@
 	<v>port() = integer() > 0 (default is 21)</v>
 	<v>mode() = active | passive (default is passive)</v>
 	<v>tls_options() = [<seealso marker="ssl:ssl#type-ssloption">ssl:ssloption()</seealso>]</v>
-	<v>sock_opts() = [<seealso marker="kernel:gen_tcp#type-option">gen_tcp:option()</seealso> except for ipv6_v6only, active, packet, mode and header</v>
+	<v>sock_opts() = [<seealso marker="kernel:gen_tcp#type-option">gen_tcp:option()</seealso> except for ipv6_v6only, active, packet, mode, packet_size and header</v>
 	<v>timeout() = integer() > 0 (default is 60000 milliseconds)</v>
 	<v>dtimeout() = integer() > 0 | infinity (default is infinity)</v>
 	<v>pogress() = ignore | {module(), function(), initial_data()} (default is ignore)</v>
diff --git a/lib/inets/src/ftp/ftp.erl b/lib/inets/src/ftp/ftp.erl
index 7509339eec..ffcccdefea 100644
--- a/lib/inets/src/ftp/ftp.erl
+++ b/lib/inets/src/ftp/ftp.erl
@@ -1073,6 +1073,7 @@ valid_socket_option({mode,_}        ) -> false;
 valid_socket_option(binary          ) -> false;
 valid_socket_option(list            ) -> false;
 valid_socket_option({header,_}      ) -> false;
+valid_socket_option({packet_size,_} ) -> false;
 valid_socket_option(_) -> true.
 
 
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