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Update DTLSv1_listen documentation

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Make it clear that if we are unable to get hold of the peer address then
*peer is cleared and the family set to AF_UNSPEC.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
This commit is contained in:
Matt Caswell 2016-02-05 20:17:10 +00:00
parent ce0865d8dc
commit a9052bed9e
1 changed files with 5 additions and 3 deletions
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8
doc/ssl/DTLSv1_listen.pod
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@ -44,9 +44,11 @@ When a ClientHello is received that contains a cookie that has been verified,
then DTLSv1_listen() will return with the B<ssl> parameter updated into a state
where the handshake can be continued by a call to (for example) SSL_accept().
Additionally the B<BIO_ADDR> pointed to by B<peer> will be filled in with
details of the peer that sent the ClientHello. Typically user code is expected
to "connect" the underlying socket to the peer and continue the handshake in a
connected state.
details of the peer that sent the ClientHello. If the underlying BIO is unable
to obtain the B<BIO_ADDR> of the peer (for example because the BIO does not
support this), then B<*peer> will be cleared and the family set to AF_UNSPEC.
Typically user code is expected to "connect" the underlying socket to the peer
and continue the handshake in a connected state.
Prior to calling DTLSv1_listen() user code must ensure that cookie generation
and verification callbacks have been set up using