SSL_pending 3 2005-04-23 0.9.9-dev OpenSSL

### NAME

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

### LIBRARY

libcrypto, -lcrypto

### SYNOPSIS

     #include

     int SSL_pending(const SSL *ssl);

### DESCRIPTION

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

### NOTES

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).

### RETURN VALUES

The number of bytes pending is returned.

### BUGS

SSL_pending() takes into account only bytes from the TLS/SSL record that is currently being processed (if any). If the SSL object's read_ahead 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.

### SEE ALSO

SSL_read(3), ssl(3)