64 lines
1.1 KiB
Markdown
64 lines
1.1 KiB
Markdown
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---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_ADDRESS_SCOPE
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_DEBUGFUNCTION (3)
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- CURLOPT_STDERR (3)
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---
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# NAME
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CURLOPT_ADDRESS_SCOPE - scope id for IPv6 addresses
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ADDRESS_SCOPE, long scope);
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~~~
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# DESCRIPTION
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Pass a long specifying the scope id value to use when connecting to IPv6 addresses.
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# DEFAULT
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0
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# PROTOCOLS
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All, when using IPv6
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# EXAMPLE
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~~~c
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#include <net/if.h> /* for if_nametoindex() */
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode ret;
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long my_scope_id;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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my_scope_id = if_nametoindex("eth0");
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curl_easy_setopt(curl, CURLOPT_ADDRESS_SCOPE, my_scope_id);
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ret = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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}
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~~~
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# AVAILABILITY
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Added in 7.19.0
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# RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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Returns CURLE_BAD_FUNCTION_ARGUMENT if set to a negative value.
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