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SSL_PENDING(3) Library Functions Manual SSL_PENDING(3)

SSL_pendingobtain number of readable bytes buffered in an SSL object

#include <openssl/ssl.h>

SSL_pending(const SSL *ssl);

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

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

The number of bytes pending is returned.

ssl(3), SSL_read(3)

SSL_pending() takes into account only bytes from the TLS/SSL record that is currently being processed (if any). If the SSL object's flag is set, additional protocol bytes may have been read containing more TLS/SSL records; these are ignored by SSL_pending().

Up to OpenSSL 0.9.6, SSL_pending() does not check if the record type of pending data is application data.

December 2, 2014 OpenBSD-5.8