180 lines
5.6 KiB
Groff
180 lines
5.6 KiB
Groff
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.\" ========================================================================
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.\"
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.IX Title "SSL_SET_FD 3"
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.TH SSL_SET_FD 3 "2020-03-02" "3.0.0-dev" "OpenSSL"
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.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.\" way too many mistakes in technical documents.
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.if n .ad l
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.nh
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.SH "NAME"
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SSL_set_fd, SSL_set_rfd, SSL_set_wfd \- connect the SSL object with a file descriptor
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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.Vb 1
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\& #include <openssl/ssl.h>
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\&
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\& int SSL_set_fd(SSL *ssl, int fd);
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\& int SSL_set_rfd(SSL *ssl, int fd);
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\& int SSL_set_wfd(SSL *ssl, int fd);
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.Ve
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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\&\fISSL_set_fd()\fR sets the file descriptor \fBfd\fR as the input/output facility
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for the \s-1TLS/SSL\s0 (encrypted) side of \fBssl\fR. \fBfd\fR will typically be the
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socket file descriptor of a network connection.
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.PP
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When performing the operation, a \fBsocket \s-1BIO\s0\fR is automatically created to
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interface between the \fBssl\fR and \fBfd\fR. The \s-1BIO\s0 and hence the \s-1SSL\s0 engine
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inherit the behaviour of \fBfd\fR. If \fBfd\fR is non-blocking, the \fBssl\fR will
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also have non-blocking behaviour.
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.PP
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If there was already a \s-1BIO\s0 connected to \fBssl\fR, \fIBIO_free()\fR will be called
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(for both the reading and writing side, if different).
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.PP
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\&\fISSL_set_rfd()\fR and \fISSL_set_wfd()\fR perform the respective action, but only
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for the read channel or the write channel, which can be set independently.
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.SH "RETURN VALUES"
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.IX Header "RETURN VALUES"
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The following return values can occur:
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.IP "0" 4
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The operation failed. Check the error stack to find out why.
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.IP "1" 4
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.IX Item "1"
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The operation succeeded.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\fISSL_get_fd\fR\|(3), \fISSL_set_bio\fR\|(3),
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\&\fISSL_connect\fR\|(3), \fISSL_accept\fR\|(3),
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\&\fISSL_shutdown\fR\|(3), \fIssl\fR\|(7) , \fIbio\fR\|(7)
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.SH "COPYRIGHT"
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.IX Header "COPYRIGHT"
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Copyright 2000\-2016 The OpenSSL Project Authors. All Rights Reserved.
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.PP
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Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file \s-1LICENSE\s0 in the source distribution or at
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<https://www.openssl.org/source/license.html>.
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