usr/src/cmd/ipf/lib/common/optname.c

   1 /*
   2  * Copyright (C) 1993-2001 by Darren Reed.
   3  *
   4  * See the IPFILTER.LICENCE file for details on licencing.
   5  *
   6  * $Id: optname.c,v 1.3 2001/06/09 17:09:24 darrenr Exp $
   7  */
   8
   9 #include "ipf.h"
  10
  11
  12 u_32_t optname(cp, sp, linenum)
  13 char ***cp;
  14 u_short *sp;
  15 int linenum;
  16 {
  17         struct ipopt_names *io, *so;
  18         u_long msk = 0;
  19         u_short smsk = 0;
  20         char *s;
  21         int sec = 0;
  22
  23         for (s = strtok(**cp, ","); s; s = strtok(NULL, ",")) {
  24                 for (io = ionames; io->on_name; io++)
  25                         if (!strcasecmp(s, io->on_name)) {
  26                                 msk |= io->on_bit;
  27                                 break;
  28                         }
  29                 if (!io->on_name) {
  30                         fprintf(stderr, "%d: unknown IP option name %s\n",
  31                                 linenum, s);
  32                         return 0;
  33                 }
  34                 if (!strcasecmp(s, "sec-class"))
  35                         sec = 1;
  36         }
  37
  38         if (sec && !*(*cp + 1)) {
  39                 fprintf(stderr, "%d: missing security level after sec-class\n",
  40                         linenum);
  41                 return 0;
  42         }
  43
  44         if (sec) {
  45                 (*cp)++;
  46                 for (s = strtok(**cp, ","); s; s = strtok(NULL, ",")) {
  47                         for (so = secclass; so->on_name; so++)
  48                                 if (!strcasecmp(s, so->on_name)) {
  49                                         smsk |= so->on_bit;
  50                                         break;
  51                                 }
  52                         if (!so->on_name) {
  53                                 fprintf(stderr,
  54                                         "%d: no such security level: %s\n",
  55                                         linenum, s);
  56                                 return 0;
  57                         }
  58                 }
  59                 if (smsk)
  60                         *sp = smsk;
  61         }
  62         return msk;
  63 }