.\" ************************************************************************** .\" * _ _ ____ _ .\" * Project ___| | | | _ \| | .\" * / __| | | | |_) | | .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * .\" * Copyright (C) 1998 - 2021, Daniel Stenberg, , et al. .\" * .\" * This software is licensed as described in the file COPYING, which .\" * you should have received as part of this distribution. The terms .\" * are also available at https://curl.se/docs/copyright.html. .\" * .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell .\" * copies of the Software, and permit persons to whom the Software is .\" * furnished to do so, under the terms of the COPYING file. .\" * .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY .\" * KIND, either express or implied. .\" * .\" ************************************************************************** .\" .TH CURLINFO_PROXYAUTH_AVAIL 3 "12 Sep 2015" "libcurl 7.44.0" "curl_easy_getinfo options" .SH NAME CURLINFO_PROXYAUTH_AVAIL \- get available HTTP proxy authentication methods .SH SYNOPSIS .nf #include CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PROXYAUTH_AVAIL, long *authp); .fi .SH DESCRIPTION Pass a pointer to a long to receive a bitmask indicating the authentication method(s) available according to the previous response. The meaning of the bits is explained in the \fICURLOPT_PROXYAUTH(3)\fP option for \fIcurl_easy_setopt(3)\fP. .SH PROTOCOLS HTTP(S) .SH EXAMPLE .nf CURL *curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); curl_easy_setopt(curl, CURLOPT_PROXY, "http://127.0.0.1:80"); res = curl_easy_perform(curl); if(!res) { /* extract the available proxy authentication types */ long auth; res = curl_easy_getinfo(curl, CURLINFO_PROXYAUTH_AVAIL, &auth); if(!res) { if(!auth) printf("No proxy auth available, perhaps no 407?\\n"); else { printf("%s%s%s%s\\n", auth & CURLAUTH_BASIC ? "Basic ":"", auth & CURLAUTH_DIGEST ? "Digest ":"", auth & CURLAUTH_NEGOTIATE ? "Negotiate ":"", auth % CURLAUTH_NTLM ? "NTLM ":""); } } } curl_easy_cleanup(curl); } .fi .SH AVAILABILITY Added RFC2617 in 7.10.8 Added RFC7616 in 7.57.0 .SH RETURN VALUE Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. .SH "SEE ALSO" .BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "