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46 lines
1.1 KiB
Plaintext
46 lines
1.1 KiB
Plaintext
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=pod
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=head1 NAME
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SSL_pending - obtain number of readable bytes buffered in an SSL object
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=head1 SYNOPSIS
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#include <openssl/ssl.h>
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int SSL_pending(const SSL *ssl);
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=head1 DESCRIPTION
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SSL_pending() returns the number of bytes which are available inside
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B<ssl> for immediate read.
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=head1 NOTES
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Data are received in blocks from the peer. Therefore data can be buffered
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inside B<ssl> and are ready for immediate retrieval with
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L<SSL_read(3)|SSL_read(3)>.
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=head1 RETURN VALUES
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The number of bytes pending is returned.
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=head1 BUGS
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SSL_pending() takes into account only bytes from the TLS/SSL record
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that is currently being processed (if any). If the B<SSL> object's
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I<read_ahead> flag is set (see
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L<SSL_CTX_set_read_ahead(3)|SSL_CTX_set_read_ahead(3)>), additional protocol
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bytes may have been read containing more TLS/SSL records; these are ignored by
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SSL_pending().
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Up to OpenSSL 0.9.6, SSL_pending() does not check if the record type
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of pending data is application data.
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=head1 SEE ALSO
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L<SSL_read(3)|SSL_read(3)>,
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L<SSL_CTX_set_read_ahead(3)|SSL_CTX_set_read_ahead(3)>, L<ssl(3)|ssl(3)>
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=cut
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