Merge from vendor branch OPENSSL:
[dragonfly.git] / secure / lib / libssl / man / SSL_set_fd.3
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124.\" ========================================================================
125.\"
126.IX Title "SSL_set_fd 3"
127.TH SSL_set_fd 3 "2007-10-24" "0.9.8g" "OpenSSL"
128.\" For nroff, turn off justification. Always turn off hyphenation; it makes
129.\" way too many mistakes in technical documents.
130.if n .ad l
131.nh
132.SH "NAME"
133SSL_set_fd \- connect the SSL object with a file descriptor
134.SH "SYNOPSIS"
135.IX Header "SYNOPSIS"
136.Vb 1
137\& #include <openssl/ssl.h>
138\&
139\& int SSL_set_fd(SSL *ssl, int fd);
140\& int SSL_set_rfd(SSL *ssl, int fd);
141\& int SSL_set_wfd(SSL *ssl, int fd);
142.Ve
143.SH "DESCRIPTION"
144.IX Header "DESCRIPTION"
145\&\fISSL_set_fd()\fR sets the file descriptor \fBfd\fR as the input/output facility
146for the \s-1TLS/SSL\s0 (encrypted) side of \fBssl\fR. \fBfd\fR will typically be the
147socket file descriptor of a network connection.
148.PP
149When performing the operation, a \fBsocket \s-1BIO\s0\fR is automatically created to
150interface between the \fBssl\fR and \fBfd\fR. The \s-1BIO\s0 and hence the \s-1SSL\s0 engine
151inherit the behaviour of \fBfd\fR. If \fBfd\fR is non-blocking, the \fBssl\fR will
152also have non-blocking behaviour.
153.PP
154If there was already a \s-1BIO\s0 connected to \fBssl\fR, \fIBIO_free()\fR will be called
155(for both the reading and writing side, if different).
156.PP
157\&\fISSL_set_rfd()\fR and \fISSL_set_wfd()\fR perform the respective action, but only
158for the read channel or the write channel, which can be set independently.
159.SH "RETURN VALUES"
160.IX Header "RETURN VALUES"
161The following return values can occur:
162.IP "0" 4
163The operation failed. Check the error stack to find out why.
164.IP "1" 4
165.IX Item "1"
166The operation succeeded.
167.SH "SEE ALSO"
168.IX Header "SEE ALSO"
169\&\fISSL_get_fd\fR\|(3), \fISSL_set_bio\fR\|(3),
170\&\fISSL_connect\fR\|(3), \fISSL_accept\fR\|(3),
171\&\fISSL_shutdown\fR\|(3), \fIssl\fR\|(3) , \fIbio\fR\|(3)