CURLOPT_GSSAPI_DELEGATION(3)

CURLOPT_GSSAPI_DELEGATION3

Allowed gss-api delegation

Usage

#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_GSSAPI_DELEGATION, long level);

Overview

Set the long parameter level to CURLGSSAPI_DELEGATION_FLAG to allow unconditional GSSAPI credential delegation. The delegation is disabled by default since 7.21.7. Set the parameter to CURLGSSAPI_DELEGATION_POLICY_FLAG to delegate only if the OK-AS-DELEGATE flag is set in the service ticket in case this feature is supported by the GSS-API implementation and the definition of GSS_C_DELEG_POLICY_FLAG was available at compile-time.

Default

CURLGSSAPI_DELEGATION_NONE

Protocols

This functionality affects http only

Examples

int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode result;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
    /* delegate if okayed by policy */
    curl_easy_setopt(curl, CURLOPT_GSSAPI_DELEGATION,
                     CURLGSSAPI_DELEGATION_POLICY_FLAG);
    result = curl_easy_perform(curl);
  }
}

Return value

curl_easy_setopt(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).

Releases

7 releases since Debian 8 (Jessie); the text changed 6 times.

  1. 8
  2. 9
  3. 10
  4. 11
  5. 12
  6. 13
  7. Arch

History

CURLGSSAPI_DELEGATION_* macros became long types in 8.16.0, prior to this version a long cast was necessary when passed to curl_easy_setopt(3).

Availability

Added in curl 7.22.0

From curl 8.23.0-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.