1SSL_pending(3)                      OpenSSL                     SSL_pending(3)
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NAME

6       SSL_pending - obtain number of readable bytes buffered in an SSL object
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SYNOPSIS

9        #include <openssl/ssl.h>
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11        int SSL_pending(const SSL *ssl);
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DESCRIPTION

14       SSL_pending() returns the number of bytes which are available inside
15       ssl for immediate read.
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NOTES

18       Data are received in blocks from the peer. Therefore data can be
19       buffered inside ssl and are ready for immediate retrieval with
20       SSL_read(3).
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RETURN VALUES

23       The number of bytes pending is returned.
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BUGS

26       SSL_pending() takes into account only bytes from the TLS/SSL record
27       that is currently being processed (if any).  If the SSL object's
28       read_ahead flag is set (see SSL_CTX_set_read_ahead(3)), additional
29       protocol bytes may have been read containing more TLS/SSL records;
30       these are ignored by SSL_pending().
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32       Up to OpenSSL 0.9.6, SSL_pending() does not check if the record type of
33       pending data is application data.
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SEE ALSO

36       SSL_read(3), SSL_CTX_set_read_ahead(3), ssl(3)
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401.0.2o                            2018-03-27                    SSL_pending(3)