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Title "BIO_s_socket 3"
way too many mistakes in technical documents.
\fBBIO_read_ex() and BIO_write_ex() read or write the underlying socket. \fBBIO_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.
\fBBIO_new_socket() returns a socket BIO using sock and close_flag.
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.
\fBBIO_new_socket() returns the newly allocated BIO or NULL is an error occurred.
Licensed under the Apache License 2.0 (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 <https://www.openssl.org/source/license.html>.