Cisco WVC80N Guía de usuario descargar pdf (Pagina 42)

Appendix D

CGI Commands

Wireless-N Internet Home Monitoring Camera

Base-64 Encoder/Decoder Sample Codes

// Standard BASE64 table

// char keyStr[] = “ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=”;

// SerComm BASE64 table

char keyStr[] = “ACEGIKMOQSUWYBDFHJLNPRTVXZacegikmoqsuwybdfhjlnprtvxz0246813579=+/”;

//--------------------------------------------------------------------

// Description: Encrypt the input data with the base64

// Input:

// char i_buf[] - input buffer

// Output:

// char o_buf[] - output buffer

// Return:

// encrypted string length

//--------------------------------------------------------------------

int encode64(char i_buf[], char o_buf[])

{

char chr1 = (char)0;

char chr2 = (char)0;

char chr3 = (char)0;

//These are the 3 bytes to be encoded

int enc1 = 0;

int enc2 = 0;

int enc3 = 0;

int enc4 = 0; //These are the 4 encoded bytes

int i = 0, j = 0; //Position counter

do { //Set up the loop here

chr1 = i_buf[i++]; //Grab the first byte

if(i < strlen(i_buf))

chr2 = i_buf[i++]; //Grab the second byte

if(i < strlen(i_buf))

chr3 = i_buf[i++]; //Grab the third byte

//Here is the actual base64 encode part.

//There really is only one way to do it.

enc1 = chr1 >> 2;

enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);

enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);

enc4 = chr3 & 63;

if(chr2 == (char)0) {

enc3 = enc4 = 64;

}

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Cisco WVC80N Guía de usuario Pagina 42

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