Function encodeB64

plugin/seq/iovtk.cpp:122–156

=========================== ===========================

//
// ===========================
int encodeB64(int n, unsigned char *inBytes, unsigned char *outBytes) {
  if (inBytes == NULL || outBytes == NULL || n <= 0) {
    return 0;
  }

  int m = n - (n % 3);
  int ii, jj;
  jj = 0;

  for (ii = 0; ii < m; ii += 3) {
    encodeB64_3Bytes(inBytes + ii, outBytes + jj);
    jj = jj + 4;
  }

  if (m != n) {
    unsigned char lastBytes[3] = {0, 0, 0};
    // give last (n-m) chars
    lastBytes[0] = inBytes[ii];
    if ((n - m) == 2) {
      lastBytes[1] = inBytes[ii + 1];
    }

    // encoding chars
    encodeB64_3Bytes(lastBytes, outBytes + jj);
    // definition of bytes which is not encoding
    outBytes[jj + 3] = '=';
    if ((n - m) == 1) {
      outBytes[jj + 2] = '=';
    }

    jj = jj + 4;
  }

  return jj;
}

int runEncodeB64(int n, unsigned char *inBytes, unsigned char *outBytes) {
  static int nbcached = 0;