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BIO_s_socket(3)                     OpenSSL                    BIO_s_socket(3)

       BIO_s_socket, BIO_new_socket - socket BIO

       libcrypto, -lcrypto

        #include <openssl/bio.h>

        const BIO_METHOD *BIO_s_socket(void);

        BIO *BIO_new_socket(int sock, int close_flag);

       BIO_s_socket() returns the socket BIO method. This is a wrapper round
       the platform's socket routines.

       BIO_read_ex() and BIO_write_ex() read or write the underlying socket.
       BIO_puts() is supported but BIO_gets() is not.

       If the close flag is set then the socket is shut down and closed when
       the BIO is freed.

       BIO_new_socket() returns a socket BIO using sock and close_flag.

       Socket BIOs also support any relevant functionality of file descriptor

       The reason for having separate file descriptor and socket BIOs is that
       on some platforms sockets are not file descriptors and use distinct I/O
       routines, Windows is one such platform. Any code mixing the two will
       not work on all platforms.

       BIO_s_socket() returns the socket BIO method.

       BIO_new_socket() returns the newly allocated BIO or NULL is an error

       Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the OpenSSL license (the "License").  You may not use
       this file except in compliance with the License.  You can obtain a copy
       in the file LICENSE in the source distribution or at

1.1.1                             2018-09-17                   BIO_s_socket(3)