| =pod |
| |
| =head1 NAME |
| |
| BIO_s_socket, BIO_new_socket - socket BIO |
| |
| =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); |
| 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 |
| round 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<b> to B<fd> and the close |
| flag to B<close_flag>. |
| |
| BIO_get_fd() places the socket in B<c> if it is not NULL, it also |
| returns the socket. If B<c> is not NULL it should be of type (int *). |
| |
| BIO_new_socket() returns a socket BIO using B<sock> and B<close_flag>. |
| |
| =head1 NOTES |
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| Socket BIOs also support any relevant functionality of file descriptor |
| BIOs. |
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| 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. |
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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 |
| initialized. |
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| BIO_new_socket() returns the newly allocated BIO or NULL is an error |
| occurred. |
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| =head1 SEE ALSO |
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| TBA |