uclient-utils.h

   1 /*
   2  * uclient - ustream based protocol client library
   3  *
   4  * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18 #ifndef __UCLIENT_UTILS_H
  19 #define __UCLIENT_UTILS_H
  20
  21 #include <stdbool.h>
  22
  23 struct http_digest_data {
  24         const char *uri;
  25         const char *method;
  26
  27         const char *auth_hash; /* H(A1) */
  28         const char *qop;
  29         const char *nc;
  30         const char *nonce;
  31         const char *cnonce;
  32 };
  33
  34 static inline int base64_len(int len)
  35 {
  36         return ((len + 2) / 3) * 4;
  37 }
  38
  39 void base64_encode(const void *inbuf, unsigned int len, void *out);
  40 void bin_to_hex(char *dest, const void *buf, int len);
  41
  42 int uclient_urldecode(const char *in, char *out, bool decode_plus);
  43
  44 void http_digest_calculate_auth_hash(char *dest, const char *user, const char *realm, const char *password);
  45 void http_digest_calculate_response(char *dest, const struct http_digest_data *data);
  46
  47 #endif