63 lines
1.5 KiB
Text
63 lines
1.5 KiB
Text
=pod
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=head1 NAME
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BIO_s_socket, BIO_new_socket - socket BIO
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=head1 SYNOPSIS
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#include <openssl/bio.h>
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BIO_METHOD *BIO_s_socket(void);
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long BIO_set_fd(BIO *b, int fd, long close_flag);
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long BIO_get_fd(BIO *b, int *c);
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BIO *BIO_new_socket(int sock, int close_flag);
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=head1 DESCRIPTION
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BIO_s_socket() returns the socket BIO method. This is a wrapper
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round the platform's socket routines.
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BIO_read() and BIO_write() read or write the underlying socket.
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BIO_puts() is supported but BIO_gets() is not.
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If the close flag is set then the socket is shut down and closed
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when the BIO is freed.
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BIO_set_fd() sets the socket of BIO B<b> to B<fd> and the close
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flag to B<close_flag>.
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BIO_get_fd() places the socket in B<c> if it is not NULL, it also
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returns the socket. If B<c> is not NULL it should be of type (int *).
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BIO_new_socket() returns a socket BIO using B<sock> and B<close_flag>.
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=head1 NOTES
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Socket BIOs also support any relevant functionality of file descriptor
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BIOs.
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The reason for having separate file descriptor and socket BIOs is that on some
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platforms sockets are not file descriptors and use distinct I/O routines,
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Windows is one such platform. Any code mixing the two will not work on
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all platforms.
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BIO_set_fd() and BIO_get_fd() are macros.
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=head1 RETURN VALUES
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BIO_s_socket() returns the socket BIO method.
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BIO_set_fd() always returns 1.
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BIO_get_fd() returns the socket or -1 if the BIO has not been
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initialized.
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BIO_new_socket() returns the newly allocated BIO or NULL is an error
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occurred.
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=head1 SEE ALSO
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TBA
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