--- c: Copyright (C) Daniel Stenberg, , et al. SPDX-License-Identifier: curl Title: CURLINFO_USED_PROXY Section: 3 Source: libcurl See-also: - CURLOPT_NOPROXY (3) - CURLOPT_PROXY (3) - curl_easy_getinfo (3) - curl_easy_setopt (3) Protocol: - All --- # NAME CURLINFO_USED_PROXY - whether the transfer used a proxy # SYNOPSIS ~~~c #include CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_USED_PROXY, long *authp); ~~~ # DESCRIPTION Pass a pointer to a long. It gets set to zero set if no proxy was used in the previous transfer or a non-zero value if a proxy was used. # EXAMPLE ~~~c int main(int argc, char *argv[]) { CURL *curl = curl_easy_init(); if(curl) { CURLcode res; curl_easy_setopt(curl, CURLOPT_URL, argv[1]); curl_easy_setopt(curl, CURLOPT_PROXY, "http://127.0.0.1:80"); curl_easy_setopt(curl, CURLOPT_NOPROXY, "example.com"); res = curl_easy_perform(curl); if(!res) { /* extract the available proxy authentication types */ long used; res = curl_easy_getinfo(curl, CURLINFO_USED_PROXY, &used); if(!res) { printf("The proxy was %sused\n", used ? "": "NOT "); } } curl_easy_cleanup(curl); } } ~~~ # AVAILABILITY Added in 8.7.0 # RETURN VALUE Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.