sin1              856 core/ngx_cycle.c     struct sockaddr_in   *sin1, *sin2;
sin1              903 core/ngx_cycle.c         sin1 = (struct sockaddr_in *) sa1;
sin1              906 core/ngx_cycle.c         if (sin1->sin_port != sin2->sin_port) {
sin1              910 core/ngx_cycle.c         if (sin1->sin_addr.s_addr != sin2->sin_addr.s_addr) {