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CURLINFO_HTTPAUTH_USED(3) Library Functions Manual CURLINFO_HTTPAUTH_USED(3) NAME CURLINFO_HTTPAUTH_USED - 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 authentication method that was used in the previous HTTP request. The meaning of the pos- sible bits is explained in the CURLOPT_HTTPAUTH(3) option for curl_easy_se- topt(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 result; 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"); result = curl_easy_perform(curl); if(result == CURLE_OK) { long auth; result = curl_easy_getinfo(curl, CURLINFO_HTTPAUTH_USED, &auth); if(result == CURLE_OK) { 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), CURLOPT_HTTPAUTH(3) libcurl 2026-06-11 CURLINFO_HTTPAUTH_USED(3)
NAME | SYNOPSIS | DESCRIPTION | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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