func (h *sha256) Write(p []byte) (n int, err error) {
l := len(p)
if l > 0 && C.SHA256_Update(&h.ctx, unsafe.Pointer(&p[0]), C.size_t(l)) == 0 {
panic("SHA256_Update failed")
}
return l, nil
}
func (self *SHA256Hash) Write(msg []byte) (n int, err error) {
size := C.size_t(len(msg))
if C.SHA256_Update(&self.sha, unsafe.Pointer(C.CString(string(msg))), size) != 1 {
panic("problem updating hash")
}
return len(msg), nil
}
func sum256(data []byte) []byte {
var hash = make([]byte, 65)
var sha256 C.SHA256_CTX
C.SHA256_Init(&sha256)
C.SHA256_Update(&sha256, unsafe.Pointer(&data[0]), C.size_t(len(data)))
C.SHA256_Final((*C.uchar)(&hash[0]), &sha256)
return hash[:64]
}
func (d *digest) Write(msg []byte) (n int, err error) {
mlen := len(msg)
size := C.size_t(mlen)
if d.is224 {
if C.SHA224_Update(&d.ctx, unsafe.Pointer(C.CString(string(msg))), size) != 1 {
return 0, sslerr.Error()
}
return mlen, nil
}
if C.SHA256_Update(&d.ctx, unsafe.Pointer(C.CString(string(msg))), size) != 1 {
return 0, sslerr.Error()
}
return mlen, nil
}