a2i_ASN1_INTEGER
if (!a2i_ASN1_INTEGER(in, ai, buf, 1024)) {
if (!a2i_ASN1_INTEGER(in, serial, buf, sizeof(buf))) {
int rv = a2i_ASN1_INTEGER(bp, bs, buf, size);
int a2i_ASN1_INTEGER(BIO *bp, ASN1_INTEGER *bs, char *buf, int size);