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-rw-r--r--lib/kernel/doc/src/gen_tcp.xml28
1 files changed, 27 insertions, 1 deletions
diff --git a/lib/kernel/doc/src/gen_tcp.xml b/lib/kernel/doc/src/gen_tcp.xml
index e6104b0c76..24d63693fd 100644
--- a/lib/kernel/doc/src/gen_tcp.xml
+++ b/lib/kernel/doc/src/gen_tcp.xml
@@ -4,7 +4,7 @@
<erlref>
<header>
<copyright>
- <year>1997</year><year>2017</year>
+ <year>1997</year><year>2018</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -70,6 +70,32 @@ do_recv(Sock, Bs) ->
<name name="option"/>
</datatype>
<datatype>
+ <name name="pktoptions_value"/>
+ <desc>
+ <p>
+ If the platform implements the IPv4 option
+ <c>IP_PKTOPTIONS</c>, or the IPv6 option
+ <c>IPV6_PKTOPTIONS</c> or <c>IPV6_2292PKTOPTIONS</c> for the socket
+ this value is returned from
+ <seealso marker="inet#getopts/2"><c>inet:getopts/2</c></seealso>
+ when called with the option name
+ <seealso marker="#type-option_name"><c>pktoptions</c></seealso>.
+ </p>
+ <note>
+ <p>
+ This option appears to be VERY Linux specific,
+ and its existence in future Linux kernel versions
+ is also worrying since the option is part of RFC 2292
+ which is since long (2003) obsoleted by RFC 3542
+ that <em>explicitly</em> removes this possibility to get
+ packet information from a stream socket.
+ For comparision: it has existed in FreeBSD but is now removed,
+ at least since FreeBSD 10.
+ </p>
+ </note>
+ </desc>
+ </datatype>
+ <datatype>
<name name="option_name"/>
</datatype>
<datatype>