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