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- .\" generated by cd2nroff 0.1 from CURLOPT_ADDRESS_SCOPE.md
- .TH CURLOPT_ADDRESS_SCOPE 3 "2025-01-17" libcurl
- .SH NAME
- CURLOPT_ADDRESS_SCOPE \- scope id for IPv6 addresses
- .SH SYNOPSIS
- .nf
- #include <curl/curl.h>
- CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ADDRESS_SCOPE, long scope);
- .fi
- .SH DESCRIPTION
- Pass a long specifying the scope id value to use when connecting to IPv6 addresses.
- .SH DEFAULT
- 0
- .SH PROTOCOLS
- This functionality affects all supported protocols
- .SH EXAMPLE
- .nf
- #include <net/if.h> /* for if_nametoindex() */
- int main(void)
- {
- 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 curl 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_DEBUGFUNCTION (3),
- .BR CURLOPT_STDERR (3)
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