PEM_read_bio_X509_REQ
LCRYPTO_USED(PEM_read_bio_X509_REQ);
LCRYPTO_ALIAS(PEM_read_bio_X509_REQ);
if ((req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL)) == NULL) {
req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);