This library is stripped down version of NetServices library. HTTP server and client function is NOT supported.

Dependents:   imu-daq-eth

Committer:
idinor
Date:
Wed Jul 20 11:45:39 2011 +0000
Revision:
0:dcf3c92487ca

        

Who changed what in which revision?

UserRevisionLine numberNew contents of line
idinor 0:dcf3c92487ca 1
idinor 0:dcf3c92487ca 2 /*
idinor 0:dcf3c92487ca 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
idinor 0:dcf3c92487ca 4
idinor 0:dcf3c92487ca 5 Permission is hereby granted, free of charge, to any person obtaining a copy
idinor 0:dcf3c92487ca 6 of this software and associated documentation files (the "Software"), to deal
idinor 0:dcf3c92487ca 7 in the Software without restriction, including without limitation the rights
idinor 0:dcf3c92487ca 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
idinor 0:dcf3c92487ca 9 copies of the Software, and to permit persons to whom the Software is
idinor 0:dcf3c92487ca 10 furnished to do so, subject to the following conditions:
idinor 0:dcf3c92487ca 11
idinor 0:dcf3c92487ca 12 The above copyright notice and this permission notice shall be included in
idinor 0:dcf3c92487ca 13 all copies or substantial portions of the Software.
idinor 0:dcf3c92487ca 14
idinor 0:dcf3c92487ca 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
idinor 0:dcf3c92487ca 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
idinor 0:dcf3c92487ca 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
idinor 0:dcf3c92487ca 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
idinor 0:dcf3c92487ca 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
idinor 0:dcf3c92487ca 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
idinor 0:dcf3c92487ca 21 THE SOFTWARE.
idinor 0:dcf3c92487ca 22 */
idinor 0:dcf3c92487ca 23
idinor 0:dcf3c92487ca 24 #include "url.h"
idinor 0:dcf3c92487ca 25 #include <stdlib.h>
idinor 0:dcf3c92487ca 26 #include <ctype.h>
idinor 0:dcf3c92487ca 27
idinor 0:dcf3c92487ca 28 //From http://www.geekhideout.com/urlcode.shtml
idinor 0:dcf3c92487ca 29
idinor 0:dcf3c92487ca 30 char from_hex(char ch);
idinor 0:dcf3c92487ca 31 char to_hex(char code);
idinor 0:dcf3c92487ca 32
idinor 0:dcf3c92487ca 33 /* Converts a hex character to its integer value */
idinor 0:dcf3c92487ca 34 char from_hex(char ch) {
idinor 0:dcf3c92487ca 35 return isdigit(ch) ? ch - '0' : tolower(ch) - 'a' + 10;
idinor 0:dcf3c92487ca 36 }
idinor 0:dcf3c92487ca 37
idinor 0:dcf3c92487ca 38 /* Converts an integer value to its hex character*/
idinor 0:dcf3c92487ca 39 char to_hex(char code) {
idinor 0:dcf3c92487ca 40 static char hex[] = "0123456789abcdef";
idinor 0:dcf3c92487ca 41 return hex[code & 15];
idinor 0:dcf3c92487ca 42 }
idinor 0:dcf3c92487ca 43
idinor 0:dcf3c92487ca 44 /* Returns a url-encoded version of str */
idinor 0:dcf3c92487ca 45 /* IMPORTANT: be sure to free() the returned string after use */
idinor 0:dcf3c92487ca 46 char *url_encode(char *str) {
idinor 0:dcf3c92487ca 47 char *pstr = str, *buf = (char*)malloc(strlen(str) * 3 + 1), *pbuf = buf;
idinor 0:dcf3c92487ca 48 while (*pstr) {
idinor 0:dcf3c92487ca 49 if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
idinor 0:dcf3c92487ca 50 *pbuf++ = *pstr;
idinor 0:dcf3c92487ca 51 else if (*pstr == ' ')
idinor 0:dcf3c92487ca 52 *pbuf++ = '+';
idinor 0:dcf3c92487ca 53 else
idinor 0:dcf3c92487ca 54 *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15);
idinor 0:dcf3c92487ca 55 pstr++;
idinor 0:dcf3c92487ca 56 }
idinor 0:dcf3c92487ca 57 *pbuf = '\0';
idinor 0:dcf3c92487ca 58 return buf;
idinor 0:dcf3c92487ca 59 }
idinor 0:dcf3c92487ca 60
idinor 0:dcf3c92487ca 61 /* Returns a url-decoded version of str */
idinor 0:dcf3c92487ca 62 /* IMPORTANT: be sure to free() the returned string after use */
idinor 0:dcf3c92487ca 63 char *url_decode(char *str) {
idinor 0:dcf3c92487ca 64 char *pstr = str, *buf = (char*)malloc(strlen(str) + 1), *pbuf = buf;
idinor 0:dcf3c92487ca 65 while (*pstr) {
idinor 0:dcf3c92487ca 66 if (*pstr == '%') {
idinor 0:dcf3c92487ca 67 if (pstr[1] && pstr[2]) {
idinor 0:dcf3c92487ca 68 *pbuf++ = from_hex(pstr[1]) << 4 | from_hex(pstr[2]);
idinor 0:dcf3c92487ca 69 pstr += 2;
idinor 0:dcf3c92487ca 70 }
idinor 0:dcf3c92487ca 71 } else if (*pstr == '+') {
idinor 0:dcf3c92487ca 72 *pbuf++ = ' ';
idinor 0:dcf3c92487ca 73 } else {
idinor 0:dcf3c92487ca 74 *pbuf++ = *pstr;
idinor 0:dcf3c92487ca 75 }
idinor 0:dcf3c92487ca 76 pstr++;
idinor 0:dcf3c92487ca 77 }
idinor 0:dcf3c92487ca 78 *pbuf = '\0';
idinor 0:dcf3c92487ca 79 return buf;
idinor 0:dcf3c92487ca 80 }