VALUE netif_get_hwaddr(VALUE self)
{
VALUE ifname = rb_iv_get(self, "@ifname");
char buf[128];
getifhwaddr(StringValuePtr(ifname), buf, sizeof(buf));
return rb_str_new2(buf);
}
int
main(int argc, char **argv)
{
char *ifname = NULL;
u_int8_t *sysname = NULL, *srvname = NULL;
char ifnambuf[IFNAMSIZ];
struct ether_addr ea;
int bpffd, smode = 0, c;
struct passwd *pw;
if ((pw = getpwnam("_ppp")) == NULL)
err(EX_CONFIG, "getpwnam(\"_ppp\")");
while ((c = getopt(argc, argv, "svi:n:p:")) != -1) {
switch (c) {
case 'i':
if (ifname != NULL) {
usage();
return (EX_USAGE);
}
ifname = optarg;
break;
case 'n':
if (srvname != NULL) {
usage();
return (EX_USAGE);
}
srvname = (u_int8_t *)optarg;
break;
case 'p':
if (sysname != NULL) {
usage();
return (EX_USAGE);
}
sysname = (u_int8_t *)optarg;
break;
case 's':
if (smode) {
usage();
return (EX_USAGE);
}
smode = 1;
break;
case 'v':
option_verbose++;
break;
default:
usage();
return (EX_USAGE);
}
}
argc -= optind;
if (argc != 0) {
usage();
return (EX_USAGE);
}
if (getifhwaddr(ifname, ifnambuf, &ea) < 0)
return (EX_IOERR);
bpffd = setupfilter(ifnambuf, &ea, smode);
if (bpffd < 0)
return (EX_IOERR);
drop_privs(pw, smode);
signal_init();
if (smode)
server_mode(bpffd, sysname, srvname, &ea);
else
client_mode(bpffd, sysname, srvname, &ea);
return (0);
}
