CURLOPT_IPRESOLVE - IP protocol version to use
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_IPRESOLVE, long resolve);
CURLOPT_IPRESOLVE(3) curl_easy_setopt options CURLOPT_IPRESOLVE(3) NAME CURLOPT_IPRESOLVE - IP protocol version to use SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_IPRESOLVE, long resolve); DESCRIPTION Allows an application to select what kind of IP addresses to use when establishing a connection or choosing one from the connection pool. This is interesting when using host names that resolve addresses using more than one version of IP. The allowed values are: CURL_IPRESOLVE_WHATEVER Default, can use addresses of all IP versions that your system allows. CURL_IPRESOLVE_V4 Uses only IPv4 addresses. CURL_IPRESOLVE_V6 Uses only IPv6 addresses. DEFAULT CURL_IPRESOLVE_WHATEVER PROTOCOLS All EXAMPLE CURL *curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin"); /* of all addresses example.com resolves to, only IPv6 ones are used */ curl_easy_setopt(curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V6); ret = curl_easy_perform(curl); curl_easy_cleanup(curl); } AVAILABILITY Always RETURN VALUE Returns CURLE_OK ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | web/curl | +---------------+------------------+ |Stability | Uncommitted | +---------------+------------------+ SEE ALSO CURLOPT_HTTP_VERSION(3), CURLOPT_SSLVERSION(3), NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://curl.se/down- load/curl-7.83.1.tar.bz2. Further information about this software can be found on the open source community website at http://curl.haxx.se/. libcurl 7.83.1 November 26, 2021 CURLOPT_IPRESOLVE(3)