ossl_do_blob_header
if (ossl_do_blob_header(&p, length, &magic, &bitlen, isdss, ispub) <= 0) {
if (ossl_do_blob_header(&p, 16, &magic, &bitlen, &isdss, ispub) <= 0)
if (ossl_do_blob_header(&p, sizeof(peekbuf), &magic, &bitlen,
int ossl_do_blob_header(const unsigned char **in, unsigned int length,
ok = ossl_do_blob_header(&p, 16, &magic, &bitlen, &isdss, &ispub) > 0;
ok = ossl_do_blob_header(&p, 16, &magic, &bitlen, &isdss, &ispub) > 0;