Andrew Bonney / NetServicesMinHTTPMod

Copy of NetServicesMin with the HTTP Client library. Includes modification for HTTP servers which send the HTTP status line in its own packet.

services/http/util/base64.cpp@0:18dd877d2c77, 2011-05-26 (annotated)

Committer:
andrewbonney
Date:
Thu May 26 10:02:40 2011 +0000
Revision:
0:18dd877d2c77

        

        
Who changed what in which revision?

        

            
                
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/*





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Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)





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Permission is hereby granted, free of charge, to any person obtaining a copy





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of this software and associated documentation files (the "Software"), to deal





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in the Software without restriction, including without limitation the rights





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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell





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copies of the Software, and to permit persons to whom the Software is





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furnished to do so, subject to the following conditions:





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The above copyright notice and this permission notice shall be included in





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all copies or substantial portions of the Software.





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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR





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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,





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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE





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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER





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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,





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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN





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THE SOFTWARE.





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*/





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#include "base64.h"





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//Originaly from Rolf's iputil.c





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#ifdef __cplusplus





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extern "C" {





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#endif





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#include <string.h>





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unsigned int base64enc_len(const char* str) {





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  return (((strlen(str)-1)/3)+1)<<2;





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}





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void base64enc(const char *input, unsigned int length, char *output) {





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  static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";





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  unsigned int c, c1, c2, c3;





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  for(unsigned int i = 0, j = 0; i<length; i+=3,j+=4) {





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    c1 = ((((unsigned char)*((unsigned char *)&input[i]))));





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    c2 = (length>i+1)?((((unsigned char)*((unsigned char *)&input[i+1])))):0;





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    c3 = (length>i+2)?((((unsigned char)*((unsigned char *)&input[i+2])))):0;





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    c = ((c1 & 0xFC) >> 2);





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    output[j+0] = base64[c];





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    c = ((c1 & 0x03) << 4) | ((c2 & 0xF0) >> 4);





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    output[j+1] = base64[c];





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    c = ((c2 & 0x0F) << 2) | ((c3 & 0xC0) >> 6);





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    output[j+2] = (length>i+1)?base64[c]:'=';





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    c = (c3 & 0x3F);





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    output[j+3] = (length>i+2)?base64[c]:'=';





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  }





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  output[(((length-1)/3)+1)<<2] = '\0';





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}





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#ifdef __cplusplus





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}





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#endif





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