curl / libcurl / API / curl_easy_getinfo / CURLINFO_HTTPAUTH_AVAIL

CURLINFO_HTTPAUTH_AVAIL explained

Name

CURLINFO_HTTPAUTH_AVAIL - available HTTP authentication methods

Synopsis

 #include <curl/curl.h>   CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_HTTPAUTH_AVAIL, long *authp);

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 CURLOPT_HTTPAUTH option for curl_easy_setopt.

Protocols

This functionality affects http only

Example

 int main(void) {   CURL *curl = curl_easy_init();   if(curl) {   CURLcode result;   curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");     result = curl_easy_perform(curl);     if(!result) {   /* extract the available authentication types */   long auth;   result = curl_easy_getinfo(curl, CURLINFO_HTTPAUTH_AVAIL, &auth);   if(!result) {   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);   } }

Availability

Added in curl 7.10.8

Return value

curl_easy_getinfo returns a CURLcode indicating success or error.

CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors.