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authorEmilia Kasper <emilia@openssl.org>2014-12-04 15:00:11 +0100
committerEmilia Kasper <emilia@openssl.org>2014-12-05 18:31:21 +0100
commit376e2ca3e3525290619602dc6013c97c9653c037 (patch)
tree86374b2fee2a0e6e75525bf00cc800a4eed464c1 /doc/ssl
parent740580c2b2b86c2ffdc4a2d36850248c6091d6a0 (diff)
Clarify the return values for SSL_get_shared_curve.
Reviewed-by: Matt Caswell <matt@openssl.org>
Diffstat (limited to 'doc/ssl')
-rw-r--r--doc/ssl/SSL_CTX_set1_curves.pod19
1 files changed, 12 insertions, 7 deletions
diff --git a/doc/ssl/SSL_CTX_set1_curves.pod b/doc/ssl/SSL_CTX_set1_curves.pod
index 0c9be25156..18d0c9ac39 100644
--- a/doc/ssl/SSL_CTX_set1_curves.pod
+++ b/doc/ssl/SSL_CTX_set1_curves.pod
@@ -45,11 +45,12 @@ B<curves> array is in the form of a set of curve NIDs in preference
order. It can return zero if the client did not send a supported curves
extension.
-SSL_get1_shared_curve() returns shared curve B<n> for B<ssl>. If B<n> is
--1 then the total number of shared curves is returned, which may be
-zero. Other than for diagnostic purposes, most applications will only
-be interested in the first shared curve so B<n> is normally set to zero.
-If the value B<n> is out of range zero is returned.
+SSL_get_shared_curve() returns shared curve B<n> for a server-side
+SSL B<ssl>. If B<n> is -1 then the total number of shared curves is
+returned, which may be zero. Other than for diagnostic purposes,
+most applications will only be interested in the first shared curve
+so B<n> is normally set to zero. If the value B<n> is out of range,
+NID_undef is returned.
SSL_CTX_set_ecdh_auto() and SSL_set_ecdh_auto() set automatic curve
selection for server B<ctx> or B<ssl> to B<onoff>. If B<onoff> is 1 then
@@ -84,8 +85,12 @@ return 1 for success and 0 for failure.
SSL_get1_curves() returns the number of curves, which may be zero.
-SSL_get1_shared_curve() returns the NID of shared curve B<n> of zero if there
-is no shared curve B<n> or the number of shared curves if B<n> is -1.
+SSL_get_shared_curve() returns the NID of shared curve B<n> or NID_undef if there
+is no shared curve B<n>; or the total number of shared curves if B<n>
+is -1.
+
+When called on a client B<ssl>, SSL_get_shared_curve() has no meaning and
+returns -1.
=head1 SEE ALSO