Base64 encodes a chunk of data.
Performs an 'encode step', only encodes blocks of 3 characters to the output at a time, saves left-over state in state and save ( initialise to 0 on first invocation).
| inbuf |
input buffer |
| inlen |
input buffer length |
| outbuf |
output buffer |
| state |
holds the number of bits that are stored in |
| save |
leftover bits that have not yet been encoded |
|
the number of bytes encoded. |