#include<stdio.h>
#include<string.h>
#include <stdio.h>
#include <string.h>

/* ---- Base64 Encoding/Decoding Table --- */
char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";



/* encodeblock - encode 3 8-bit binary bytes as 4 '6-bit' characters */
void encodeblock( unsigned char in[], char b64str[], int len ) {
    unsigned char out[5];
    out[0] = b64[ in[0] >> 2 ];
    out[1] = b64[ ((in[0] & 0x03) << 4) | ((in[1] & 0xf0) >> 4) ];
    out[2] = (unsigned char) (len > 1 ? b64[ ((in[1] & 0x0f) << 2) |
             ((in[2] & 0xc0) >> 6) ] : '=');
    out[3] = (unsigned char) (len > 2 ? b64[ in[2] & 0x3f ] : '=');
    out[4] = '\0';
    strncat(b64str, out, sizeof(out));
}

/* encode - base64 encode a stream, adding padding if needed */
void b64_encode(char *clrstr, char *b64dst) {
  unsigned char in[3];
  int i, len = 0;
  int j = 0;

  b64dst[0] = '\0';
  while(clrstr[j]) {
    len = 0;
    for(i=0; i<3; i++) {
     in[i] = (unsigned char) clrstr[j];
     if(clrstr[j]) {
        len++; j++;
      }
      else in[i] = 0;
    }
    if( len ) {
      encodeblock( in, b64dst, len );
    }
  }
}






int main(int argc, char *argv[])
{

	char u[3] = "-u";
	char p[3] = "-p";

	if(strcmp(argv[1],u)!=0 || strcmp(argv[3],p)!=0)
		printf("Oops! Something is wrong... \nExample: ./Tema1 -u [username] -p [password]\n");

	else
		printf("Username: %s \nPassword: %s\n",argv[2],argv[4]);


	char mysrc[] = " ";
	strcpy(mysrc,argv[4]);
	char myb64[1024] = "";
	char mydst[1024] = "";
	b64_encode(mysrc, myb64);
  	printf("The string\n[%s]\nencodes into base64 as:\n[%s]\n", mysrc, myb64);
  	printf("\n");





return 0;

}