/* $NetBSD: getproto.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: getproto.c,v 1.1.1.2 2012/07/22 13:44:38 darrenr Exp $ */ #include "ipf.h" #include int getproto(name) char *name; { struct protoent *p; char *s; for (s = name; *s != '\0'; s++) if (!ISDIGIT(*s)) break; if (*s == '\0') return atoi(name); #ifdef _AIX51 /* * For some bogus reason, "ip" is 252 in /etc/protocols on AIX 5 * The IANA has doubled up on the definition of 0 - it is now also * used for IPv6 hop-opts, so we can no longer rely on /etc/protocols * providing the correct name->number mapping */ #endif if (!strcasecmp(name, "ip")) return 0; p = getprotobyname(name); if (p != NULL) return p->p_proto; return -1; }