parseurl.c

/***************************************************************************
 * _ _ ____ _
 * Project ___| | | | _ \| |
 * / __| | | | |_) | |
 * | (__| |_| | _ <| |___
 * \___|\___/|_| \_\_____|
 *
 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution. The terms
 * are also available at https://curl.se/docs/copyright.html.
 *
 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
 * copies of the Software, and permit persons to whom the Software is
 * furnished to do so, under the terms of the COPYING file.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 * SPDX-License-Identifier: curl
 *
 ***************************************************************************/
/* <DESC>
 * Basic URL API use.
 * </DESC>
 */
#include <stdio.h>
#include <curl/curl.h>
 
#if !CURL_AT_LEAST_VERSION(7, 62, 0)
#error "this example requires curl 7.62.0 or later"
#endif
 
int main(void)
{
 CURLU *h;
 CURLUcode uc;
 char *host;
 char *path;
 
 h = curl_url(); /* get a handle to work with */
 if(!h)
 return 1;
 
 /* parse a full URL */
 uc = curl_url_set(h, CURLUPART_URL, "http://example.com/path/index.html", 0);
 if(uc)
 goto fail;
 
 /* extract hostname from the parsed URL */
 uc = curl_url_get(h, CURLUPART_HOST, &host, 0);
 if(!uc) {
 printf("Host name: %s\n", host);
 curl_free(host);
 }
 
 /* extract the path from the parsed URL */
 uc = curl_url_get(h, CURLUPART_PATH, &path, 0);
 if(!uc) {
 printf("Path: %s\n", path);
 curl_free(path);
 }
 
 /* redirect with a relative URL */
 uc = curl_url_set(h, CURLUPART_URL, "../another/second.html", 0);
 if(uc)
 goto fail;
 
 /* extract the new, updated path */
 uc = curl_url_get(h, CURLUPART_PATH, &path, 0);
 if(!uc) {
 printf("Path: %s\n", path);
 curl_free(path);
 }
 
fail:
 curl_url_cleanup(h); /* free URL handle */
 return 0;
}

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