168651Skris=pod 268651Skris 368651Skris=head1 NAME 468651Skris 568651SkrisSSL_pending - obtain number of readable bytes buffered in an SSL object 668651Skris 768651Skris=head1 SYNOPSIS 868651Skris 968651Skris #include <openssl/ssl.h> 1068651Skris 11160814Ssimon int SSL_pending(const SSL *ssl); 1268651Skris 1368651Skris=head1 DESCRIPTION 1468651Skris 1568651SkrisSSL_pending() returns the number of bytes which are available inside 1668651SkrisB<ssl> for immediate read. 1768651Skris 1868651Skris=head1 NOTES 1968651Skris 2068651SkrisData are received in blocks from the peer. Therefore data can be buffered 2168651Skrisinside B<ssl> and are ready for immediate retrieval with 2268651SkrisL<SSL_read(3)|SSL_read(3)>. 2368651Skris 2468651Skris=head1 RETURN VALUES 2568651Skris 2668651SkrisThe number of bytes pending is returned. 2768651Skris 2872613Skris=head1 BUGS 2972613Skris 3072613SkrisSSL_pending() takes into account only bytes from the TLS/SSL record 3172613Skristhat is currently being processed (if any). If the B<SSL> object's 32280304SjkimI<read_ahead> flag is set (see 33280304SjkimL<SSL_CTX_set_read_ahead(3)|SSL_CTX_set_read_ahead(3)>), additional protocol 34280304Sjkimbytes may have been read containing more TLS/SSL records; these are ignored by 3572613SkrisSSL_pending(). 3672613Skris 3772613SkrisUp to OpenSSL 0.9.6, SSL_pending() does not check if the record type 3872613Skrisof pending data is application data. 3972613Skris 4072613Skris=head1 SEE ALSO 4172613Skris 42280304SjkimL<SSL_read(3)|SSL_read(3)>, 43280304SjkimL<SSL_CTX_set_read_ahead(3)|SSL_CTX_set_read_ahead(3)>, L<ssl(3)|ssl(3)> 4468651Skris 4568651Skris=cut 46