Appendix D
CGI Commands
//Heres the decode part. There’s really only one way to do it. chr1 = (enc1 << 2) (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) (enc3 >> 2); chr3 = ((enc3 & 3) << 6) enc4;
o_buf[j++] = (char)chr1;
if (enc3 != 64) {
o_buf[j++] = (char)chr2;
}
if (enc4 != 64) {
o_buf[j++] = (char)chr3;
}
//now clean out the variables used chr1 = (char)0;
chr2 = (char)0; chr3 = (char)0;
enc1 = 0; enc2 = 0; enc3 = 0; enc4 = 0;
} while (i < strlen(i_buf)); //finish off the loop
//Now return the decoded values. return j;
}
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