ngx_http_ssl_verify_callback   17 event/ngx_event_openssl.c static int ngx_http_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store);
ngx_http_ssl_verify_callback  227 event/ngx_event_openssl.c     SSL_CTX_set_verify(ssl->ctx, SSL_VERIFY_PEER, ngx_http_ssl_verify_callback);