c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Title: CURLOPT_SOCKS5_GSSAPI_NEC Section: 3 Source: libcurl See-also:
CURLOPT_SOCKS5_GSSAPI_NEC - SOCKS proxy GSSAPI negotiation protection
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SOCKS5_GSSAPI_NEC, long nec);
Pass a long set to 1 to enable or 0 to disable. As part of the GSSAPI negotiation a protection mode is negotiated. The RFC 1961 says in section 4.3/4.4 it should be protected, but the NEC reference implementation does not. If enabled, this option allows the unprotected exchange of the protection mode negotiation.
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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_PROXY, "socks5://proxy");
curl_easy_setopt(curl, CURLOPT_SOCKS5_GSSAPI_NEC, 1L);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
Added in 7.19.4
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.