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.TH CURLOPT_SOCKS5_AUTH 3 "27 April 2017" "libcurl 7.55.0" "curl_easy_setopt options"
.SH NAME
CURLOPT_SOCKS5_AUTH \- set allowed methods for SOCKS5 proxy authentication
.SH SYNOPSIS
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SOCKS5_AUTH, long bitmask);
.SH DESCRIPTION
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 \fICURLAUTH_BASIC\fP, which allows username/password
authentication, \fICURLAUTH_GSSAPI\fP, which allows GSS-API authentication, and
\fICURLAUTH_NONE\fP, which allows no authentication.  Set the actual user name
and password with the \fICURLOPT_PROXYUSERPWD(3)\fP option.
.SH DEFAULT
CURLAUTH_BASIC|CURLAUTH_GSSAPI
.SH PROTOCOLS
All
.SH EXAMPLE
.nf
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);
}
.fi
.SH AVAILABILITY
Added in 7.55.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
CURLE_NOT_BUILT_IN if the bitmask contains unsupported flags.
.SH "SEE ALSO"
.BR CURLOPT_PROXY "(3), " CURLOPT_PROXYTYPE "(3)"