DOKK / manpages / debian 11 / libcurl4-doc / CURLOPT_SOCKS5_AUTH.3.en
CURLOPT_SOCKS5_AUTH(3) curl_easy_setopt options CURLOPT_SOCKS5_AUTH(3)

CURLOPT_SOCKS5_AUTH - set allowed methods for SOCKS5 proxy authentication

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SOCKS5_AUTH, long bitmask);

Pass a long as parameter, which is set to a bitmask, to tell libcurl which authentication method(s) are allowed for SOCKS5 proxy authentication. The only supported flags are CURLAUTH_BASIC, which allows username/password authentication, CURLAUTH_GSSAPI, which allows GSS-API authentication, and CURLAUTH_NONE, which allows no authentication. Set the actual user name and password with the CURLOPT_PROXYUSERPWD(3) option.

CURLAUTH_BASIC|CURLAUTH_GSSAPI

All

CURL *curl = curl_easy_init();
if(curl) {

curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* request to use a SOCKS5 proxy */
curl_easy_setopt(curl, CURLOPT_PROXY, "socks5://user:pass@myproxy.com");
/* enable username/password authentication only */
curl_easy_setopt(curl, CURLOPT_SOCKS5_AUTH, CURLAUTH_BASIC);
/* Perform the request */
curl_easy_perform(curl); }

Added in 7.55.0

Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_NOT_BUILT_IN if the bitmask contains unsupported flags.

CURLOPT_PROXY(3), CURLOPT_PROXYTYPE(3)

November 4, 2020 libcurl 7.74.0