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CURLINFO_HTTPAUTH_USED(3)  Library Functions Manual  CURLINFO_HTTPAUTH_USED(3)

NAME
       CURLINFO_HTTPAUTH_USED -	get used HTTP authentication method

SYNOPSIS
       #include	<curl/curl.h>

       CURLcode	curl_easy_getinfo(CURL *handle,	CURLINFO_HTTPAUTH_USED,	long *authp);

DESCRIPTION
       Pass  a pointer to a long to receive a bitmask indicating the authenti-
       cation method that was used in the previous HTTP	request.  The  meaning
       of the possible bits is explained in the	CURLOPT_HTTPAUTH(3) option for
       curl_easy_setopt(3).

       The returned value has zero or one bit set.

PROTOCOLS
       This functionality affects http only

EXAMPLE
       int main(void)
       {
	 CURL *curl = curl_easy_init();
	 if(curl) {
	   CURLcode res;
	   curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
	   curl_easy_setopt(curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC | CURLAUTH_DIGEST);
	   curl_easy_setopt(curl, CURLOPT_USERNAME, "shrek");
	   curl_easy_setopt(curl, CURLOPT_PASSWORD, "swamp");

	   res = curl_easy_perform(curl);

	   if(!res) {
	     long auth;
	     res = curl_easy_getinfo(curl, CURLINFO_HTTPAUTH_USED, &auth);
	     if(!res) {
	       if(!auth)
		 printf("No auth used\n");
	       else {
		 if(auth == CURLAUTH_DIGEST)
		   printf("Used	Digest authentication\n");
		 else
		   printf("Used	Basic authentication\n");
	       }
	     }
	   }
	   curl_easy_cleanup(curl);
	 }
       }

AVAILABILITY
       Added in	curl 8.12.0

RETURN VALUE
       curl_easy_getinfo(3) returns a CURLcode indicating success or error.

       CURLE_OK	(0) means everything was OK, non-zero means an error occurred,
       see libcurl-errors(3).

SEE ALSO
       CURLINFO_HTTPAUTH_AVAIL(3),	 CURLINFO_PROXYAUTH_USED(3),	  CUR-
       LOPT_HTTPAUTH(3)

libcurl				  2025-06-03	     CURLINFO_HTTPAUTH_USED(3)

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