curl_url_get(3)

NAME
curl_url_get - extract a part from a URL

SYNOPSIS
#include <curl/curl.h>

CURLUcode curl_url_get(CURLU *url,
                       CURLUPart what,
                       char **part,
                       unsigned int flags)

DESCRIPTION
Given the url handle of an already parsed URL, this function lets the user extract individual pieces from it.

The what argument should be the particular part to extract (see list below) and part points to a 'char *' to get updated to point to a newly allocated string with the contents.

The flags argument is a bitmask with individual features.

The returned part pointer must be freed with curl_free(3) after use.

FLAGS
The flags argument is zero, one or more bits set in a bitmask.

CURLU_DEFAULT_PORT
    If the handle has no port stored, this option will make curl_url_get(3) return the default port for the used scheme.

CURLU_DEFAULT_SCHEME
    If the handle has no scheme stored, this option will make curl_url_get(3) return the default scheme instead of error.

CURLU_NO_DEFAULT_PORT
    Instructs curl_url_get(3) to not return a port number if it matches the default port for the scheme.

CURLU_URLDECODE
    Asks curl_url_get(3) to URL decode the contents before returning it. It will not attempt to decode the scheme, the port number or the full URL.

    The query component will also get plus-to-space conversion as a bonus when this bit is set.

    Note that this URL decoding is charset unaware and you will get a zero terminated string back with data that could be intended for a particular encoding.

    If there's any byte values lower than 32 in the decoded string, the get operation will return an error instead.

PARTS

CURLUPART_URL
    When asked to return the full URL, curl_url_get(3) will return a normalized and possibly cleaned up version of what was previously parsed.

CURLUPART_SCHEME
    Scheme cannot be URL decoded on get.

CURLUPART_USER

CURLUPART_PASSWORD

CURLUPART_OPTIONS

CURLUPART_HOST
    The host name. If it is an IPv6 numeric address, the zoneid will not be part of it but is provided separately in CURLUPART_ZONEID. IPv6 numerical addresses are returned within brackets ([]).

CURLUPART_ZONEID
    If the host name is a numeric IPv6 address, this field might also be set.

CURLUPART_PORT
    Port cannot be URL decoded on get.

CURLUPART_PATH

CURLUPART_QUERY
    The query part will also get pluses converted to space when asked to URL decode on get with the CURLU_URLDECODE bit.

CURLUPART_FRAGMENT

RETURN VALUE
Returns a CURLUcode error value, which is CURLUE_OK (0) if everything went fine.

If this function returns an error, no URL part is returned.

EXAMPLE
  CURLUcode rc;
  CURLU *url = curl_url();
  rc = curl_url_set(url, CURLUPART_URL, "https://example.com", 0);
  if(!rc) {
    char *scheme;
    rc = curl_url_get(url, CURLUPART_SCHEME, &scheme, 0);
    if(!rc) {
      printf("the scheme is %s\n", scheme);
      curl_free(scheme);
    }
    curl_url_cleanup(url);
  }

AVAILABILITY
Added in curl 7.62.0. CURLUPART_ZONEID was added in 7.65.0.

SEE ALSO
curl_url_cleanup(3), curl_url(3), curl_url_set(3), curl_url_dup(3), CURLOPT_CURLU(3),