Manpages - CURLINFO_PROXY_ERROR.3

CURLINFO_PROXY_ERROR - get the detailed (SOCKS) proxy error

  #include <curl/curl.h>

  typedef enum {
    CURLPX_OK,
    CURLPX_BAD_ADDRESS_TYPE,
    CURLPX_BAD_VERSION,
    CURLPX_CLOSED,
    CURLPX_GSSAPI,
    CURLPX_GSSAPI_PERMSG,
    CURLPX_GSSAPI_PROTECTION,
    CURLPX_IDENTD,
    CURLPX_IDENTD_DIFFER,
    CURLPX_LONG_HOSTNAME,
    CURLPX_LONG_PASSWD,
    CURLPX_LONG_USER,
    CURLPX_NO_AUTH,
    CURLPX_RECV_ADDRESS,
    CURLPX_RECV_AUTH,
    CURLPX_RECV_CONNECT,
    CURLPX_RECV_REQACK,
    CURLPX_REPLY_ADDRESS_TYPE_NOT_SUPPORTED,
    CURLPX_REPLY_COMMAND_NOT_SUPPORTED,
    CURLPX_REPLY_CONNECTION_REFUSED,
    CURLPX_REPLY_GENERAL_SERVER_FAILURE,
    CURLPX_REPLY_HOST_UNREACHABLE,
    CURLPX_REPLY_NETWORK_UNREACHABLE,
    CURLPX_REPLY_NOT_ALLOWED,
    CURLPX_REPLY_TTL_EXPIRED,
    CURLPX_REPLY_UNASSIGNED,
    CURLPX_REQUEST_FAILED,
    CURLPX_RESOLVE_HOST,
    CURLPX_SEND_AUTH,
    CURLPX_SEND_CONNECT,
    CURLPX_SEND_REQUEST,
    CURLPX_UNKNOWN_FAIL,
    CURLPX_UNKNOWN_MODE,
    CURLPX_USER_REJECTED,
    CURLPX_LAST /* never use */
  } CURLproxycode;

  CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PROXY_ERROR, long *detail);

Pass a pointer to a long to receive a detailed error code when the most recent transfer returned a CURLE_PROXY error.

The return value will match the CURLproxycode set.

The returned value will be zero (equal to CURLPX_OK) if no such response code was available.

All that can be done over SOCKS

  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://127.0.0.1");
    res = curl_easy_perform(curl);
    if(res == CURLE_PROXY) {
      long proxycode;
      res = curl_easy_getinfo(curl, CURLINFO_PROXY_ERROR, &proxycode);
      if(!res && proxycode)
        printf("The detailed proxy error: %ld\n", proxycode);
    }
    curl_easy_cleanup(curl);
  }

Added in 7.73.0

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

*CURLINFO_RESPONSE_CODE*(3), *libcurl-errors*(3), *curl_easy_getinfo*(3), *curl_easy_setopt*(3),