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| author | Nikos Mavrogiannopoulos <nmav@redhat.com> | 2017-07-14 11:30:51 +0200 |
|---|---|---|
| committer | Nikos Mavrogiannopoulos <nmav@gnutls.org> | 2017-08-11 08:18:07 +0200 |
| commit | 0b572406fa500a57c3e0a4abb74ef6ff0dca91fd (patch) | |
| tree | 307ffe8ae694a91daee01101f9ae2a58c8e1f816 /doc | |
| parent | 720b255c3691458bf7836f424add0c3886f5b0dd (diff) | |
| download | gnutls-0b572406fa500a57c3e0a4abb74ef6ff0dca91fd.tar.gz | |
extensions: simplified requirements from send callback
The callback no longer needs to return the number of sent data;
they are now calculated by the caller.
Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/cha-internals.texi | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/cha-internals.texi b/doc/cha-internals.texi index d368054712..532057d51a 100644 --- a/doc/cha-internals.texi +++ b/doc/cha-internals.texi @@ -246,7 +246,13 @@ The @funcintref{_foobar_recv_params} function is responsible for parsing incoming extension data (both in the client and server). The @funcintref{_foobar_send_params} function is responsible for -sending extension data (both in the client and server). +sending extension data (both in the client and server). It should +append data to provided buffer and return a positive (or zero) number on +success or a negative error code. Previous to 3.6.0 versions of GnuTLS required +that function to return the number of bytes that were written. If zero +is returned and no bytes are appended the extension will not be sent. +If a zero byte extension is to be sent this function must return +@code{GNUTLS_E_INT_RET_0}. If you receive length fields that don't match, return @code{GNUTLS_E_@-UNEXPECTED_@-PACKET_@-LENGTH}. If you receive invalid |