.\" generated by cd2nroff 0.1 from CURLINFO_USED_PROXY.md .TH CURLINFO_USED_PROXY 3 "2025-02-08" libcurl .SH NAME CURLINFO_USED_PROXY \- whether the transfer used a proxy .SH SYNOPSIS .nf #include CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_USED_PROXY, long *authp); .fi .SH 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. .SH PROTOCOLS This functionality affects all supported protocols .SH EXAMPLE .nf 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); } } .fi .SH AVAILABILITY Added in curl 8.7.0 .SH RETURN VALUE \fIcurl_easy_getinfo(3)\fP returns a CURLcode indicating success or error. CURLE_OK (0) means everything was OK, non\-zero means an error occurred, see \fIlibcurl\-errors(3)\fP. .SH SEE ALSO .BR CURLOPT_NOPROXY (3), .BR CURLOPT_PROXY (3), .BR curl_easy_getinfo (3), .BR curl_easy_setopt (3)