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+.\" **************************************************************************
+.\" *                                  _   _ ____  _
+.\" *  Project                     ___| | | |  _ \| |
+.\" *                             / __| | | | |_) | |
+.\" *                            | (__| |_| |  _ <| |___
+.\" *                             \___|\___/|_| \_\_____|
+.\" *
+.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+.\" *
+.\" * This software is licensed as described in the file COPYING, which
+.\" * you should have received as part of this distribution. The terms
+.\" * are also available at https://curl.haxx.se/docs/copyright.html.
+.\" *
+.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+.\" * copies of the Software, and permit persons to whom the Software is
+.\" * furnished to do so, under the terms of the COPYING file.
+.\" *
+.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+.\" * KIND, either express or implied.
+.\" *
+.\" **************************************************************************
+.\"
+.TH CURLOPT_LOCALPORT 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
+.SH NAME
+CURLOPT_LOCALPORT \- set local port number to use for socket
+.SH SYNOPSIS
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_LOCALPORT, long port);
+.SH DESCRIPTION
+Pass a long. This sets the local port number of the socket used for the
+connection. This can be used in combination with \fICURLOPT_INTERFACE(3)\fP
+and you are recommended to use \fICURLOPT_LOCALPORTRANGE(3)\fP as well when
+this option is set. Valid port numbers are 1 - 65535.
+.SH DEFAULT
+0, disabled - use whatever the system thinks is fine
+.SH PROTOCOLS
+All
+.SH EXAMPLE
+.nf
+CURL *curl = curl_easy_init();
+if(curl) {
+  curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/foo.bin");
+  curl_easy_setopt(curl, CURLOPT_LOCALPORT, 49152L);
+  /* and try 20 more ports following that */
+  curl_easy_setopt(curl, CURLOPT_LOCALPORTRANGE, 20L);
+  ret = curl_easy_perform(curl);
+  curl_easy_cleanup(curl);
+}
+.fi
+.SH AVAILABILITY
+Added in 7.15.2
+.SH RETURN VALUE
+Returns CURLE_OK
+.SH "SEE ALSO"
+.BR CURLOPT_LOCALPORTRANGE "(3), " CURLOPT_INTERFACE "(3), "