1=pod
2
3=head1 NAME
4
5BIO_s_socket, BIO_new_socket - socket BIO
6
7=head1 SYNOPSIS
8
9 #include <openssl/bio.h>
10
11 BIO_METHOD *BIO_s_socket(void);
12
13 long BIO_set_fd(BIO *b, int fd, long close_flag);
14 long BIO_get_fd(BIO *b, int *c);
15
16 BIO *BIO_new_socket(int sock, int close_flag);
17
18=head1 DESCRIPTION
19
20BIO_s_socket() returns the socket BIO method. This is a wrapper
21round the platform's socket routines.
22
23BIO_read() and BIO_write() read or write the underlying socket.
24BIO_puts() is supported but BIO_gets() is not.
25
26If the close flag is set then the socket is shut down and closed
27when the BIO is freed.
28
29BIO_set_fd() sets the socket of BIO B<b> to B<fd> and the close
30flag to B<close_flag>.
31
32BIO_get_fd() places the socket in B<c> if it is not NULL, it also
33returns the socket. If B<c> is not NULL it should be of type (int *).
34
35BIO_new_socket() returns a socket BIO using B<sock> and B<close_flag>.
36
37=head1 NOTES
38
39Socket BIOs also support any relevant functionality of file descriptor
40BIOs.
41
42The reason for having separate file descriptor and socket BIOs is that on some
43platforms sockets are not file descriptors and use distinct I/O routines,
44Windows is one such platform. Any code mixing the two will not work on
45all platforms.
46
47BIO_set_fd() and BIO_get_fd() are macros.
48
49=head1 RETURN VALUES
50
51BIO_s_socket() returns the socket BIO method.
52
53BIO_set_fd() always returns 1.
54
55BIO_get_fd() returns the socket or -1 if the BIO has not been
56initialized.
57
58BIO_new_socket() returns the newly allocated BIO or NULL is an error
59occurred.
60
61=head1 SEE ALSO
62
63TBA
64