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curl/docs/libcurl/opts/CURLOPT_ADDRESS_SCOPE.3
tmilburn c3e38a4250
CURLOPT_ADDRESS_SCOPE: fix range check and more
Commit 9081014 fixed most of the confusing issues between scope id and
scope however 844896d added bad limits checking assuming that the scope
is being set and not the scope id.

I have fixed the documentation so it all refers to scope ids.

In addition Curl_if2ip refered to the scope id as remote_scope_id which
is incorrect, so I renamed it to local_scope_id.

Adjusted-by: Daniel Stenberg

Closes #3655
Closes #3765
Fixes #3713
2019-04-13 11:18:55 +02:00

56 lines
2.0 KiB
Groff

.\" **************************************************************************
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.TH CURLOPT_ADDRESS_SCOPE 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
.SH NAME
CURLOPT_ADDRESS_SCOPE \- set scope id for IPv6 addresses
.SH SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ADDRESS_SCOPE, long scope);
.SH DESCRIPTION
Pass a long specifying the scope id value to use when connecting to IPv6 addresses.
.SH DEFAULT
0
.SH PROTOCOLS
All, when using IPv6
.SH EXAMPLE
.nf
CURL *curl = curl_easy_init();
if(curl) {
CURLcode ret;
long my_scope_id;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
my_scope_id = if_nametoindex("eth0");
curl_easy_setopt(curl, CURLOPT_ADDRESS_SCOPE, my_scope_id);
ret = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
.fi
.SH AVAILABILITY
Added in 7.19.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
Returns CURLE_BAD_FUNCTION_ARGUMENT if set to a negative value.
.SH "SEE ALSO"
.BR CURLOPT_STDERR "(3), " CURLOPT_DEBUGFUNCTION "(3), "