515   const uint8_t *alpn = NULL;  in quic_init_ssl()  local
526   alpn = (const uint8_t *)H3_ALPN_H3_29 H3_ALPN_H3;  in quic_init_ssl()
528   if(alpn)  in quic_init_ssl()
529     SSL_set_alpn_protos(ctx->ssl, alpn, (int)alpnlen);  in quic_init_ssl()
553   gnutls_datum_t alpn[2];  in quic_init_ssl()  local
591   alpn[0].data = (unsigned char *)H3_ALPN_H3_29 + 1;  in quic_init_ssl()
592   alpn[0].size = sizeof(H3_ALPN_H3_29) - 2;  in quic_init_ssl()
593   alpn[1].data = (unsigned char *)H3_ALPN_H3 + 1;  in quic_init_ssl()
594   alpn[1].size = sizeof(H3_ALPN_H3) - 2;  in quic_init_ssl()
597                             alpn, 2, GNUTLS_ALPN_MANDATORY);  in quic_init_ssl()
708   const uint8_t *alpn = NULL;  in quic_init_ssl()  local
721   alpn = (const uint8_t *)H3_ALPN_H3_29 H3_ALPN_H3;  in quic_init_ssl()
723   if(alpn)  in quic_init_ssl()
724     wolfSSL_set_alpn_protos(ctx->ssl, alpn, (int)alpnlen);  in quic_init_ssl()
2551       cf->conn->alpn = CURL_HTTP_VERSION_3;  in cf_ngtcp2_connect()