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BIO_s_socket(3)
NAME
  BIO_s_socket, BIO_new_socket - Socket BIO

SYNOPSIS
  #include <openssl/bio.h>

  BIO_METHOD *	  BIO_s_socket(
	  void );

  #define BIO_set_fd(b,fd,c)	  BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
  #define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)

  BIO *BIO_new_socket(
	  int sock,
	  int close_flag );

DESCRIPTION
  The BIO_s_socket() function returns the socket BIO method. This is a
  wrapper around the platform's socket routines.

  BIO_read() and BIO_write() 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_set_fd() sets the socket of BIO b to fd and the close flag to c.

  BIO_get_fd() places the socket in c if it is not NULL, it also returns the
  socket . If c is not NULL it should be of type (int *).

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

NOTES
  Socket BIOs also support any relevant functionality of file descriptor
  BIOs.

  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.

RETURN VALUES
  BIO_s_socket() returns the socket BIO method.

  BIO_set_fd() always returns 1.

  BIO_get_fd() returns the socket or -1 if the BIO has not been initialized.

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

SEE ALSO
  TBA

Index for Section 3

Alphabetical listing for B

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