CURLINFO_HTTPAUTH_AVAIL - available HTTP authentication methods

NAME SYNOPSIS DESCRIPTION PROTOCOLS EXAMPLE AVAILABILITY RETURN VALUE SEE ALSO

NAME

CURLINFO_HTTPAUTH_AVAIL − available HTTP authentication methods

SYNOPSIS

#include <curl/curl.h>

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

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(3) option for curl_easy_setopt(3).

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 == CURLE_OK) {
/* extract the available authentication types */
long auth;
result = curl_easy_getinfo(curl, CURLINFO_HTTPAUTH_AVAIL, &auth);
if(result == CURLE_OK) {
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(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).