URL validation

Hi,

when using curl's URL functions, is it possible to validate the URL?

In the documentation of curl_url_set() it says:

"CURLUPART_URL
... The string must point to a correctly formatted "RFC 3986+" URL or be
a NULL pointer."

What exactly does "RFC 3986+" mean? And what happens if the URL string
is not a correct "RFC 3986+" URL?

Consider the following test program:

--------------------------------------------------
#include <stdio.h>
#include <curl/curl.h>

static
void
validate_url(CURLU *url_handle, const char *url)
{
     int rc = curl_url_set(url_handle, CURLUPART_URL, url, 0);

     printf("URL '%s': rc %d\n", url, rc);
}

int
main(void)
{
     CURLU *url_handle = curl_url();

     /* Valid URL: */
     validate_url(url_handle,
                 "https://curl.haxx.se/libcurl/c/curl_url_set.html");

     /* Invalid because of '<' and '>': */
     validate_url(url_handle, "https://curl.haxx.se/<invalid>");

     /* Invalid percent-escaped sequence: */
     validate_url(url_handle, "https://curl.haxx.se/%XY");

     curl_url_cleanup(url_handle);

     return 0;
}
-----------------------------------------------------

While the first URL is valid, I consider the second and third one
invalid. But curl_url_set() returns CURLUE_OK for them. Is this expected?

--
Stephan
-------------------------------------------------------------------
Unsubscribe: https://cool.haxx.se/list/listinfo/curl-library
Etiquette:   https://curl.haxx.se/mail/etiquette.html