Function en64

src/base64.c:26–38

#define DECODE64(c)  ((c > 32 && c<127)? base64val[(int)c] : BAD)

unsigned char* en64 (const unsigned char *in, unsigned char *out, int inlen)
{
    for (; inlen > 0; inlen -= 3, in+=3)
    {
	
	*out++ = base64digits[in[0] >> 2];
	*out++ = base64digits[((in[0]&3)<<4) | ((inlen > 1)?(in[1]>>4):0)];
	*out++ = (inlen > 1)? base64digits[((in[1] << 2) & 0x3c) | ((inlen > 2)? (in[2] >> 6) : 0)]: '=';
	*out++ = (inlen > 2)? base64digits[in[2] & 0x3f] : '=';
    }
    *out = '\0';
    return out;
}

int de64 (const char *in, char *out, int maxlen)
{