#define http_etag_digest(d, l) _http_etag_digest((d), (l))
static inline char *_http_etag_digest(const unsigned char *digest, int len)
{
#define http_etag_digest(d, l) _http_etag_digest((d), (l))
static inline char *_http_etag_digest(const unsigned char *digest, int len)
{