gmnisrv/include/url.h

#ifndef URLAPI_H
#define URLAPI_H
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 2018, 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.haxx.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.
 *
 ***************************************************************************/

/* the error codes for the URL API */
typedef enum {
  CURLUE_OK,
  CURLUE_BAD_HANDLE,          /* 1 */
  CURLUE_BAD_PARTPOINTER,     /* 2 */
  CURLUE_MALFORMED_INPUT,     /* 3 */
  CURLUE_BAD_PORT_NUMBER,     /* 4 */
  CURLUE_UNSUPPORTED_SCHEME,  /* 5 */
  CURLUE_URLDECODE,           /* 6 */
  CURLUE_OUT_OF_MEMORY,       /* 7 */
  CURLUE_USER_NOT_ALLOWED,    /* 8 */
  CURLUE_UNKNOWN_PART,        /* 9 */
  CURLUE_NO_SCHEME,           /* 10 */
  CURLUE_NO_USER,             /* 11 */
  CURLUE_NO_PASSWORD,         /* 12 */
  CURLUE_NO_OPTIONS,          /* 13 */
  CURLUE_NO_HOST,             /* 14 */
  CURLUE_NO_PORT,             /* 15 */
  CURLUE_NO_QUERY,            /* 16 */
  CURLUE_NO_FRAGMENT          /* 17 */
} CURLUcode;

typedef enum {
  CURLUPART_URL,
  CURLUPART_SCHEME,
  CURLUPART_USER,
  CURLUPART_PASSWORD,
  CURLUPART_OPTIONS,
  CURLUPART_HOST,
  CURLUPART_PORT,
  CURLUPART_PATH,
  CURLUPART_QUERY,
  CURLUPART_FRAGMENT
} CURLUPart;

#define CURLU_PATH_AS_IS (1<<4)         /* leave dot sequences */
#define CURLU_DISALLOW_USER (1<<5)      /* no user+password allowed */
#define CURLU_URLDECODE (1<<6)          /* URL decode on get */
#define CURLU_URLENCODE (1<<7)          /* URL encode on set */
#define CURLU_APPENDQUERY (1<<8)        /* append a form style part */

typedef struct Curl_URL CURLU;

/*
 * curl_url() creates a new CURLU handle and returns a pointer to it.
 * Must be freed with curl_url_cleanup().
 */
struct Curl_URL *curl_url(void);

/*
 * curl_url_cleanup() frees the CURLU handle and related resources used for
 * the URL parsing. It will not free strings previously returned with the URL
 * API.
 */
void curl_url_cleanup(struct Curl_URL *handle);

/*
 * curl_url_dup() duplicates a CURLU handle and returns a new copy. The new
 * handle must also be freed with curl_url_cleanup().
 */
struct Curl_URL *curl_url_dup(struct Curl_URL *in);

/*
 * curl_url_get() extracts a specific part of the URL from a CURLU
 * handle. Returns error code. The returned pointer MUST be freed with
 * free() afterwards.
 */
CURLUcode curl_url_get(struct Curl_URL *handle, CURLUPart what,
	char **part, unsigned int flags);

/*
 * curl_url_set() sets a specific part of the URL in a CURLU handle. Returns
 * error code. The passed in string will be copied. Passing a NULL instead of
 * a part string, clears that part.
 */
CURLUcode curl_url_set(struct Curl_URL *handle, CURLUPart what,
	const char *part, unsigned int flags);

#endif