Lorcan Smith / Mbed 2 deprecated Enet_SPI

SNMP agent attached to SPI slave

Dependencies:   mbed

services/http/util/base64.cpp@0:2a53a4c3238c, 2012-08-13 (annotated)

Committer:
lorcansmith
Date:
Mon Aug 13 15:07:40 2012 +0000
Revision:
0:2a53a4c3238c
v1.1 release includes ioAlarm traps

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lorcansmith 0:2a53a4c3238c 1
lorcansmith 0:2a53a4c3238c 2 /*
lorcansmith 0:2a53a4c3238c 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
lorcansmith 0:2a53a4c3238c 4
lorcansmith 0:2a53a4c3238c 5 Permission is hereby granted, free of charge, to any person obtaining a copy
lorcansmith 0:2a53a4c3238c 6 of this software and associated documentation files (the "Software"), to deal
lorcansmith 0:2a53a4c3238c 7 in the Software without restriction, including without limitation the rights
lorcansmith 0:2a53a4c3238c 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
lorcansmith 0:2a53a4c3238c 9 copies of the Software, and to permit persons to whom the Software is
lorcansmith 0:2a53a4c3238c 10 furnished to do so, subject to the following conditions:
lorcansmith 0:2a53a4c3238c 11
lorcansmith 0:2a53a4c3238c 12 The above copyright notice and this permission notice shall be included in
lorcansmith 0:2a53a4c3238c 13 all copies or substantial portions of the Software.
lorcansmith 0:2a53a4c3238c 14
lorcansmith 0:2a53a4c3238c 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
lorcansmith 0:2a53a4c3238c 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
lorcansmith 0:2a53a4c3238c 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
lorcansmith 0:2a53a4c3238c 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
lorcansmith 0:2a53a4c3238c 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
lorcansmith 0:2a53a4c3238c 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
lorcansmith 0:2a53a4c3238c 21 THE SOFTWARE.
lorcansmith 0:2a53a4c3238c 22 */
lorcansmith 0:2a53a4c3238c 23
lorcansmith 0:2a53a4c3238c 24 #include "base64.h"
lorcansmith 0:2a53a4c3238c 25 //Originaly from Rolf's iputil.c
lorcansmith 0:2a53a4c3238c 26
lorcansmith 0:2a53a4c3238c 27 #ifdef __cplusplus
lorcansmith 0:2a53a4c3238c 28 extern "C" {
lorcansmith 0:2a53a4c3238c 29 #endif
lorcansmith 0:2a53a4c3238c 30
lorcansmith 0:2a53a4c3238c 31 #include <string.h>
lorcansmith 0:2a53a4c3238c 32
lorcansmith 0:2a53a4c3238c 33 unsigned int base64enc_len(const char *str) {
lorcansmith 0:2a53a4c3238c 34 return (((strlen(str)-1)/3)+1)<<2;
lorcansmith 0:2a53a4c3238c 35 }
lorcansmith 0:2a53a4c3238c 36
lorcansmith 0:2a53a4c3238c 37 void base64enc(const char *input, unsigned int length, char *output) {
lorcansmith 0:2a53a4c3238c 38 static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
lorcansmith 0:2a53a4c3238c 39 unsigned int c, c1, c2, c3;
lorcansmith 0:2a53a4c3238c 40 for(unsigned int i = 0, j = 0; i<length; i+=3,j+=4) {
lorcansmith 0:2a53a4c3238c 41 c1 = ((((unsigned char)*((unsigned char *)&input[i]))));
lorcansmith 0:2a53a4c3238c 42 c2 = (length>i+1)?((((unsigned char)*((unsigned char *)&input[i+1])))):0;
lorcansmith 0:2a53a4c3238c 43 c3 = (length>i+2)?((((unsigned char)*((unsigned char *)&input[i+2])))):0;
lorcansmith 0:2a53a4c3238c 44
lorcansmith 0:2a53a4c3238c 45 c = ((c1 & 0xFC) >> 2);
lorcansmith 0:2a53a4c3238c 46 output[j+0] = base64[c];
lorcansmith 0:2a53a4c3238c 47 c = ((c1 & 0x03) << 4) | ((c2 & 0xF0) >> 4);
lorcansmith 0:2a53a4c3238c 48 output[j+1] = base64[c];
lorcansmith 0:2a53a4c3238c 49 c = ((c2 & 0x0F) << 2) | ((c3 & 0xC0) >> 6);
lorcansmith 0:2a53a4c3238c 50 output[j+2] = (length>i+1)?base64[c]:'=';
lorcansmith 0:2a53a4c3238c 51 c = (c3 & 0x3F);
lorcansmith 0:2a53a4c3238c 52 output[j+3] = (length>i+2)?base64[c]:'=';
lorcansmith 0:2a53a4c3238c 53 }
lorcansmith 0:2a53a4c3238c 54 output[(((length-1)/3)+1)<<2] = '\0';
lorcansmith 0:2a53a4c3238c 55 }
lorcansmith 0:2a53a4c3238c 56
lorcansmith 0:2a53a4c3238c 57 #ifdef __cplusplus
lorcansmith 0:2a53a4c3238c 58 }
lorcansmith 0:2a53a4c3238c 59 #endif
lorcansmith 0:2a53a4c3238c 60