root/sbin/ipf/libipf/kvatoname.c

/*
 * Copyright (C) 2012 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * $Id$
 */

#include "ipf.h"

#include <fcntl.h>
#include <sys/ioctl.h>

char *
kvatoname(ipfunc_t func, ioctlfunc_t iocfunc)
{
        static char funcname[40];
        ipfunc_resolve_t res;
        int fd;

        res.ipfu_addr = func;
        res.ipfu_name[0] = '\0';
        fd = -1;

        if ((opts & OPT_DONTOPEN) == 0) {
                fd = open(IPL_NAME, O_RDONLY);
                if (fd == -1)
                        return (NULL);
        }
        (void) (*iocfunc)(fd, SIOCFUNCL, &res);
        if (fd >= 0)
                close(fd);
        strncpy(funcname, res.ipfu_name, sizeof(funcname));
        funcname[sizeof(funcname) - 1] = '\0';
        return (funcname);
}