bool initwarning(const char *desc, int level, int type) {
if(initing < level) {
addchange(desc, type);
return true;
}
return false;
}
void readconf (void)
{
char *line;
size_t linel;
int linenum;
FILE *ifh;
char *p;
int n;
ifh = fopen (fname, "r");
if (!ifh)
complain (_("opening configuration file %s: %s"), fname, strerror (errno));
line = NULL;
linel = 0;
linenum = 1;
while (getdelim (&line, &linel, '\n', ifh) > 0)
{
struct change *ch = xmalloc (sizeof (struct change));
char pos[20];
sprintf (pos, _("line %d"), linenum);
if ((p = strchr (line, '#')) != NULL)
*p = '\0';
p = line;
while (isspace (*p))
++p;
if (*p == '\0')
continue;
n = strcspn (p, " \t");
if (n > IFNAMSIZ)
complain (_("interface name too long at line %d"), line);
memcpy (ch->ifname, p, n);
ch->ifname[n] = 0;
p += n;
p += strspn (p, " \t");
n = strspn (p, "0123456789ABCDEFabcdef:");
p[n] = 0;
addchange (p, ch, pos);
linenum++;
}
fclose (ifh);
}
int main (int ac, char **av)
{
FILE *ifh;
char *p;
int n;
int linenum;
char *line = NULL;
size_t linel = 0;
for (;;)
{
int c = getopt_long (ac, av, "c:s", lopt, NULL);
if (c == -1)
break;
switch (c)
{
default:
case '?':
usage ();
case 'c':
fname = optarg;
break;
case 's':
use_syslog = 1;
break;
}
}
if (use_syslog)
openlog ("nameif", 0, LOG_LOCAL0);
while (optind < ac)
{
struct change *ch = xmalloc (sizeof (struct change));
char pos[30];
if ((ac - optind) & 1)
usage ();
if (strlen (av[optind]) + 1 > IFNAMSIZ)
complain (_("interface name `%s' too long"), av[optind]);
strcpy (ch->ifname, av[optind]);
optind++;
sprintf (pos, _("argument %d"), optind);
addchange (av[optind], ch, pos);
optind++;
}
if (!clist || fname != default_conf)
readconf ();
ifh = fopen ("/proc/net/dev", "r");
if (!ifh)
complain (_("open of /proc/net/dev: %s"), strerror (errno));
linenum = 0;
while (getdelim (&line, &linel, '\n', ifh) > 0)
{
struct change *ch;
unsigned char mac[6];
if (linenum++ < 2)
continue;
p = line;
while (isspace (*p))
++p;
n = strcspn (p, ": \t");
p[n] = 0;
if (n > IFNAMSIZ - 1)
complain (_("interface name `%s' too long"), p);
if (getmac (p, mac) < 0)
continue;
ch = lookupmac (mac);
if (!ch)
continue;
*ch->pprev = ch->next;
if (strcmp (p, ch->ifname))
{
if (setname (p, ch->ifname) < 0)
complain (_("cannot change name of %s to %s: %s"), p, ch->ifname, strerror (errno));
}
free (ch);
}
fclose (ifh);
while (clist)
{
struct change *ch = clist;
clist = clist->next;
warning (_("interface '%s' not found"), ch->ifname);
free (ch);
}
if (use_syslog)
closelog ();
return 0;
}