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- .\" generated by cd2nroff 0.1 from CURLINFO_HTTPAUTH_AVAIL.md
- .TH CURLINFO_HTTPAUTH_AVAIL 3 "2025-01-17" libcurl
- .SH NAME
- CURLINFO_HTTPAUTH_AVAIL \- get available HTTP authentication methods
- .SH SYNOPSIS
- .nf
- #include <curl/curl.h>
- CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_HTTPAUTH_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_HTTPAUTH(3)\fP option for \fIcurl_easy_setopt(3)\fP.
- .SH PROTOCOLS
- This functionality affects http only
- .SH EXAMPLE
- .nf
- int main(void)
- {
- CURL *curl = curl_easy_init();
- if(curl) {
- CURLcode res;
- curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
- res = curl_easy_perform(curl);
- if(!res) {
- /* extract the available authentication types */
- long auth;
- res = curl_easy_getinfo(curl, CURLINFO_HTTPAUTH_AVAIL, &auth);
- if(!res) {
- if(!auth)
- printf("No auth available, perhaps no 401?\\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 in curl 7.10.8
- .SH RETURN VALUE
- Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
- .SH SEE ALSO
- .BR CURLINFO_PROXYAUTH_AVAIL (3),
- .BR CURLOPT_HTTPAUTH (3),
- .BR curl_easy_getinfo (3),
- .BR curl_easy_setopt (3)
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