.\" generated by cd2nroff 0.1 from CURLOPT_SOCKS5_AUTH.md .TH CURLOPT_SOCKS5_AUTH 3 "March 22 2024" libcurl .SH NAME CURLOPT_SOCKS5_AUTH \- methods for SOCKS5 proxy authentication .SH SYNOPSIS .nf #include CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SOCKS5_AUTH, long bitmask); .fi .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 int main(void) { 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, (long)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), .BR CURLOPT_PROXYTYPE (3)