17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * Copyright (C) 1993-2001 by Darren Reed.
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * See the IPFILTER.LICENCE file for details on licencing.
57c478bd9Sstevel@tonic-gate *
6*ab25eeb5Syz155240 * $Id: icmpcode.c,v 1.7.2.1 2004/12/09 19:41:20 darrenr Exp $
77c478bd9Sstevel@tonic-gate */
87c478bd9Sstevel@tonic-gate
97c478bd9Sstevel@tonic-gate #include <ctype.h>
107c478bd9Sstevel@tonic-gate
117c478bd9Sstevel@tonic-gate #include "ipf.h"
127c478bd9Sstevel@tonic-gate
137c478bd9Sstevel@tonic-gate #ifndef MIN
147c478bd9Sstevel@tonic-gate # define MIN(a,b) ((a) > (b) ? (b) : (a))
157c478bd9Sstevel@tonic-gate #endif
167c478bd9Sstevel@tonic-gate
177c478bd9Sstevel@tonic-gate
187c478bd9Sstevel@tonic-gate char *icmpcodes[MAX_ICMPCODE + 1] = {
197c478bd9Sstevel@tonic-gate "net-unr", "host-unr", "proto-unr", "port-unr", "needfrag", "srcfail",
207c478bd9Sstevel@tonic-gate "net-unk", "host-unk", "isolate", "net-prohib", "host-prohib",
217c478bd9Sstevel@tonic-gate "net-tos", "host-tos", "filter-prohib", "host-preced", "preced-cutoff",
227c478bd9Sstevel@tonic-gate NULL };
237c478bd9Sstevel@tonic-gate
247c478bd9Sstevel@tonic-gate /*
257c478bd9Sstevel@tonic-gate * Return the number for the associated ICMP unreachable code.
267c478bd9Sstevel@tonic-gate */
icmpcode(str)277c478bd9Sstevel@tonic-gate int icmpcode(str)
287c478bd9Sstevel@tonic-gate char *str;
297c478bd9Sstevel@tonic-gate {
307c478bd9Sstevel@tonic-gate char *s;
317c478bd9Sstevel@tonic-gate int i, len;
327c478bd9Sstevel@tonic-gate
337c478bd9Sstevel@tonic-gate if ((s = strrchr(str, ')')))
347c478bd9Sstevel@tonic-gate *s = '\0';
35*ab25eeb5Syz155240 if (ISDIGIT(*str)) {
367c478bd9Sstevel@tonic-gate if (!ratoi(str, &i, 0, 255))
377c478bd9Sstevel@tonic-gate return -1;
387c478bd9Sstevel@tonic-gate else
397c478bd9Sstevel@tonic-gate return i;
407c478bd9Sstevel@tonic-gate }
417c478bd9Sstevel@tonic-gate len = strlen(str);
427c478bd9Sstevel@tonic-gate for (i = 0; icmpcodes[i]; i++)
437c478bd9Sstevel@tonic-gate if (!strncasecmp(str, icmpcodes[i], MIN(len,
447c478bd9Sstevel@tonic-gate strlen(icmpcodes[i])) ))
457c478bd9Sstevel@tonic-gate return i;
467c478bd9Sstevel@tonic-gate return -1;
477c478bd9Sstevel@tonic-gate }
48