Mercurial > illumos > onarm
view usr/src/cmd/ipf/lib/common/tcpflags.c @ 0:c9caec207d52 b86
Initial porting based on b86
author | Koji Uno <koji.uno@sun.com> |
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date | Tue, 02 Jun 2009 18:56:50 +0900 |
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/* * Copyright (C) 1993-2001 by Darren Reed. * * See the IPFILTER.LICENCE file for details on licencing. * * $Id: tcpflags.c,v 1.3 2002/11/02 07:18:01 darrenr Exp $ */ #include "ipf.h" /* * ECN is a new addition to TCP - RFC 2481 */ #ifndef TH_ECN # define TH_ECN 0x40 #endif #ifndef TH_CWR # define TH_CWR 0x80 #endif extern char flagset[]; extern u_char flags[]; u_char tcpflags(flgs) char *flgs; { u_char tcpf = 0; char *s, *t; for (s = flgs; *s; s++) { if (*s == 'W') tcpf |= TH_CWR; else { if (!(t = strchr(flagset, *s))) { return 0; } tcpf |= flags[t - flagset]; } } return tcpf; }