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Diffstat (limited to 'docs/libcurl/opts/GNURLOPT_LOCALPORTRANGE.3')
| -rw-r--r-- | docs/libcurl/opts/GNURLOPT_LOCALPORTRANGE.3 | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/docs/libcurl/opts/GNURLOPT_LOCALPORTRANGE.3 b/docs/libcurl/opts/GNURLOPT_LOCALPORTRANGE.3 new file mode 100644 index 000000000..4d3b98ff0 --- /dev/null +++ b/docs/libcurl/opts/GNURLOPT_LOCALPORTRANGE.3 @@ -0,0 +1,60 @@ +.\" ************************************************************************** +.\" * _ _ ____ _ +.\" * 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 GNURLOPT_LOCALPORTRANGE 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options" +.SH NAME +CURLOPT_LOCALPORTRANGE \- number of additional local ports to try +.SH SYNOPSIS +#include <gnurl/curl.h> + +CURLcode curl_easy_setopt(CURL *handle, CURLOPT_LOCALPORTRANGE, + long range); +.SH DESCRIPTION +Pass a long. The \fIrange\fP argument is the number of attempts libcurl will +make to find a working local port number. It starts with the given +\fICURLOPT_LOCALPORT(3)\fP and adds one to the number for each retry. Setting +this option to 1 or below will make libcurl do only one try for the exact port +number. Port numbers by nature are scarce resources that will be busy at times +so setting this value to something too low might cause unnecessary connection +setup failures. +.SH DEFAULT +1 +.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 if the option is supported, and CURLE_UNKNOWN_OPTION if not. +.SH "SEE ALSO" +.BR CURLOPT_LOCALPORT "(3), " CURLOPT_INTERFACE "(3), " |