mirror of https://github.com/curl/curl.git synced 2026-04-13 00:31:41 +08:00

docs: add CURLOPT type change history, drop casts where present

Some CURLOPT constants defined in the curl public headers were initially
enums (= ints), or macros with bare numeric values. Recent curl releases
upgraded them to `long` constants, to make them pass correctly to
`curl_easy_setop()` by default, i.e. without requiring a `(long)` cast.

This patch drops such casts from the examples embedded in the docs. At
the same time it documents which curl release made them `long` types,
to keep them useful when working with previous libcurl versions.

Also:
- drop a `(long)` cast that was never necessary.
- CURLOPT_ALTSVC_CTRL.md: bump local copy of macros to long.
- test1119: make it ignore symbols ending with an underscore, to skip
  wildcard, e.g. `**CURLAUTH_***`.

Closes #18130

2025-08-02 00:05:33 +02:00

1.6 KiB

Raw Blame History

SPDX-License-Identifier

Title

Section

Source

Protocol

See-also

Added-in

curl

CURLOPT_GSSAPI_DELEGATION

libcurl

HTTP

CURLOPT_HTTPAUTH (3)

CURLOPT_PROXYAUTH (3)

7.22.0

NAME

CURLOPT_GSSAPI_DELEGATION - allowed GSS-API delegation

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_GSSAPI_DELEGATION, long level);

DESCRIPTION

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%

EXAMPLE

int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode ret;
    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);
    ret = curl_easy_perform(curl);
  }
}

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%

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).

1.6 KiB Raw Blame History