/* $NetBSD: portname.c,v 1.2 2012/07/22 14:27:36 darrenr Exp $ */ /* * Copyright (C) 2012 by Darren Reed. * * See the IPFILTER.LICENCE file for details on licencing. * * Id: portname.c,v 1.1.1.2 2012/07/22 13:44:40 darrenr Exp $ */ #include "ipf.h" char *portname(pr, port) int pr, port; { static char buf[32]; struct protoent *p = NULL; struct servent *sv = NULL; struct servent *sv1 = NULL; if ((opts & OPT_NORESOLVE) == 0) { if (pr == -1) { if ((sv = getservbyport(htons(port), "tcp"))) { strncpy(buf, sv->s_name, sizeof(buf)-1); buf[sizeof(buf)-1] = '\0'; sv1 = getservbyport(htons(port), "udp"); sv = strncasecmp(buf, sv->s_name, strlen(buf)) ? NULL : sv1; } if (sv) return buf; } else if ((pr != -2) && (p = getprotobynumber(pr))) { if ((sv = getservbyport(htons(port), p->p_name))) { strncpy(buf, sv->s_name, sizeof(buf)-1); buf[sizeof(buf)-1] = '\0'; return buf; } } } (void) sprintf(buf, "%d", port); return buf; }