dist/ipf/lib/kvatoname.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2002 by Darren Reed.
   5  *
   6  * See the IPFILTER.LICENCE file for details on licencing.
   7  *
   8  * Id: kvatoname.c,v 1.1.4.1 2006/06/16 17:21:05 darrenr Exp
   9  */
  10
  11 #include "ipf.h"
  12
  13 #include <fcntl.h>
  14 #include <sys/ioctl.h>
  15
  16 char *kvatoname(func, iocfunc)
  17 ipfunc_t func;
  18 ioctlfunc_t iocfunc;
  19 {
  20         static char funcname[40];
  21         ipfunc_resolve_t res;
  22         int fd;
  23
  24         res.ipfu_addr = func;
  25         res.ipfu_name[0] = '\0';
  26         fd = -1;
  27
  28         if ((opts & OPT_DONOTHING) == 0) {
  29                 fd = open(IPL_NAME, O_RDONLY);
  30                 if (fd == -1)
  31                         return NULL;
  32         }
  33         (void) (*iocfunc)(fd, SIOCFUNCL, &res);
  34         if (fd >= 0)
  35                 close(fd);
  36         strncpy(funcname, res.ipfu_name, sizeof(funcname));
  37         funcname[sizeof(funcname) - 1] = '\0';
  38         return funcname;
  39 }