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lwip-contrib-mac/ports/win32/test.c

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/*
* Copyright (c) 2001,2002 Florian Schulze.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the authors nor the names of the contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* test.c - This file is part of lwIP test
*
*/
/* C runtime includes */
#include <stdio.h>
#include <stdarg.h>
#include <time.h>
#include <string.h>
#include <conio.h>
/* lwIP core includes */
#include "lwip/opt.h"
#include "lwip/sys.h"
#include "lwip/timers.h"
#include "lwip/debug.h"
#include "lwip/stats.h"
#include "lwip/init.h"
#include "lwip/tcpip.h"
#include "lwip/netif.h"
#include "lwip/tcp.h"
#include "lwip/udp.h"
#include "lwip/dns.h"
#include "lwip/dhcp.h"
#include "lwip/autoip.h"
/* lwIP netif includes */
#include "netif/etharp.h"
/* applications includes */
#include "apps/httpserver_raw/httpd.h"
#include "apps/httpserver/httpserver-netconn.h"
#include "apps/netio/netio.h"
#include "apps/netbios/netbios.h"
#include "apps/ping/ping.h"
#include "apps/rtp/rtp.h"
#include "apps/sntp/sntp.h"
#include "apps/chargen/chargen.h"
#include "apps/shell/shell.h"
#include "apps/tcpecho/tcpecho.h"
#include "apps/udpecho/udpecho.h"
#include "apps/tcpecho_raw/echo.h"
#include "apps/socket_examples/socket_examples.h"
#if NO_SYS
/* ... then we need information about the timer intervals: */
#include "lwip/ip_frag.h"
#include "lwip/igmp.h"
#endif /* NO_SYS */
#if PPP_SUPPORT
/* PPP includes */
#include "../netif/ppp/ppp_impl.h"
#include "lwip/sio.h"
#include "netif/ppp_oe.h"
#endif /* PPP_SUPPORT */
/* include the port-dependent configuration */
#include "lwipcfg_msvc.h"
/** Define this to 1 to enable a PCAP interface as default interface. */
#ifndef USE_PCAPIF
#define USE_PCAPIF 1
#endif
/** Define this to 1 or 2 to support 1 or 2 SLIP interfaces. */
#ifndef USE_SLIPIF
#define USE_SLIPIF 0
#endif
/** Use an ethernet adapter? Default to enabled if PCAPIF or PPPoE are used. */
#ifndef USE_ETHERNET
#define USE_ETHERNET (USE_PCAPIF || PPPOE_SUPPORT)
#endif
/** Use an ethernet adapter for TCP/IP? By default only if PCAPIF is used. */
#ifndef USE_ETHERNET_TCPIP
#define USE_ETHERNET_TCPIP (USE_PCAPIF)
#endif
#if USE_ETHERNET
#include "pcapif.h"
#endif /* USE_ETHERNET */
#if USE_SLIPIF
#include <netif/slipif.h>
#endif /* USE_SLIPIF */
#ifndef USE_DHCP
#define USE_DHCP LWIP_DHCP
#endif
#ifndef USE_AUTOIP
#define USE_AUTOIP LWIP_AUTOIP
#endif
/* globales variables for netifs */
#if USE_ETHERNET
/* THE ethernet interface */
struct netif netif;
#if LWIP_DHCP
/* dhcp struct for the ethernet netif */
struct dhcp netif_dhcp;
#endif /* LWIP_DHCP */
#if LWIP_AUTOIP
/* autoip struct for the ethernet netif */
struct autoip netif_autoip;
#endif /* LWIP_AUTOIP */
#endif /* USE_ETHERNET */
#if PPP_SUPPORT
/* THE PPP descriptor */
int ppp_desc = -1;
u8_t sio_idx = 0;
sio_fd_t ppp_sio;
#endif /* PPP_SUPPORT */
#if USE_SLIPIF
struct netif slipif1;
#if USE_SLIPIF > 1
struct netif slipif2;
#endif /* USE_SLIPIF > 1 */
#endif /* USE_SLIPIF */
#if PPP_SUPPORT
void
pppLinkStatusCallback(void *ctx, int errCode, void *arg)
{
LWIP_UNUSED_ARG(ctx);
switch(errCode) {
case PPPERR_NONE: { /* No error. */
struct ppp_addrs *ppp_addrs = (struct ppp_addrs *)arg;
printf("pppLinkStatusCallback: PPPERR_NONE\n");
printf(" our_ipaddr=%s\n", ip_ntoa(&ppp_addrs->our_ipaddr));
printf(" his_ipaddr=%s\n", ip_ntoa(&ppp_addrs->his_ipaddr));
printf(" netmask =%s\n", ip_ntoa(&ppp_addrs->netmask));
printf(" dns1 =%s\n", ip_ntoa(&ppp_addrs->dns1));
printf(" dns2 =%s\n", ip_ntoa(&ppp_addrs->dns2));
break;
}
case PPPERR_PARAM: { /* Invalid parameter. */
printf("pppLinkStatusCallback: PPPERR_PARAM\n");
break;
}
case PPPERR_OPEN: { /* Unable to open PPP session. */
printf("pppLinkStatusCallback: PPPERR_OPEN\n");
break;
}
case PPPERR_DEVICE: { /* Invalid I/O device for PPP. */
printf("pppLinkStatusCallback: PPPERR_DEVICE\n");
break;
}
case PPPERR_ALLOC: { /* Unable to allocate resources. */
printf("pppLinkStatusCallback: PPPERR_ALLOC\n");
break;
}
case PPPERR_USER: { /* User interrupt. */
printf("pppLinkStatusCallback: PPPERR_USER\n");
break;
}
case PPPERR_CONNECT: { /* Connection lost. */
printf("pppLinkStatusCallback: PPPERR_CONNECT\n");
break;
}
case PPPERR_AUTHFAIL: { /* Failed authentication challenge. */
printf("pppLinkStatusCallback: PPPERR_AUTHFAIL\n");
break;
}
case PPPERR_PROTOCOL: { /* Failed to meet protocol. */
printf("pppLinkStatusCallback: PPPERR_PROTOCOL\n");
break;
}
default: {
printf("pppLinkStatusCallback: unknown errCode %d\n", errCode);
break;
}
}
}
#endif /* PPP_SUPPORT */
#if LWIP_NETIF_STATUS_CALLBACK
void status_callback(struct netif *netif)
{
if (netif_is_up(netif)) {
printf("status_callback==UP, local interface IP is %s\n", ip_ntoa(&netif->ip_addr));
} else {
printf("status_callback==DOWN\n");
}
}
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
void link_callback(struct netif *netif)
{
if (netif_is_link_up(netif)) {
printf("link_callback==UP\n");
#if USE_DHCP
if (netif->dhcp != NULL) {
dhcp_renew(netif);
}
#endif /* USE_DHCP */
} else {
printf("link_callback==DOWN\n");
}
}
#endif /* LWIP_NETIF_LINK_CALLBACK */
/* This function initializes all network interfaces */
static void
msvc_netif_init()
{
#if USE_ETHERNET
ip_addr_t ipaddr, netmask, gw;
#endif /* USE_ETHERNET */
#if USE_SLIPIF
u8_t num_slip1 = 0;
ip_addr_t ipaddr_slip1, netmask_slip1, gw_slip1;
#if USE_SLIPIF > 1
u8_t num_slip2 = 1;
ip_addr_t ipaddr_slip2, netmask_slip2, gw_slip2;
#endif /* USE_SLIPIF > 1 */
#endif /* USE_SLIPIF */
#if PPP_SUPPORT
const char *username = NULL, *password = NULL;
#ifdef PPP_USERNAME
username = PPP_USERNAME;
#endif
#ifdef PPP_PASSWORD
password = PPP_PASSWORD;
#endif
printf("pppInit\n");
pppInit();
pppSetAuth(PPPAUTHTYPE_ANY, username, password);
printf("pppOpen: COM%d\n", (int)sio_idx);
#if PPPOS_SUPPORT
ppp_sio = sio_open(sio_idx);
if (ppp_sio == NULL) {
printf("sio_open error\n");
} else {
ppp_desc = pppOpen(ppp_sio, pppLinkStatusCallback, NULL);
}
#endif /* PPPOS_SUPPORT */
#endif /* PPP_SUPPORT */
#if USE_ETHERNET
ip_addr_set_zero(&gw);
ip_addr_set_zero(&ipaddr);
ip_addr_set_zero(&netmask);
#if USE_ETHERNET_TCPIP
#if USE_DHCP
printf("Starting lwIP, local interface IP is dhcp-enabled\n");
#elif USE_AUTOIP
printf("Starting lwIP, local interface IP is autoip-enabled\n");
#else /* USE_DHCP */
LWIP_PORT_INIT_GW(&gw);
LWIP_PORT_INIT_IPADDR(&ipaddr);
LWIP_PORT_INIT_NETMASK(&netmask);
printf("Starting lwIP, local interface IP is %s\n", ip_ntoa(&ipaddr));
#endif /* USE_DHCP */
#endif /* USE_ETHERNET_TCPIP */
#if NO_SYS
#if LWIP_ARP
netif_set_default(netif_add(&netif, &ipaddr, &netmask, &gw, NULL, pcapif_init, ethernet_input));
#else /* LWIP_ARP */
netif_set_default(netif_add(&netif, &ipaddr, &netmask, &gw, NULL, pcapif_init, ip_input));
#endif /* LWIP_ARP */
#else /* NO_SYS */
netif_set_default(netif_add(&netif, &ipaddr, &netmask, &gw, NULL, pcapif_init, tcpip_input));
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&netif, 1);
printf("ip6 linklocal address: ");
ip6_addr_debug_print(0xFFFFFFFF & ~LWIP_DBG_HALT, &netif.ip6_addr[0]);
printf("\n");
#endif /* LWIP_IPV6 */
#endif /* NO_SYS */
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&netif, status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
netif_set_link_callback(&netif, link_callback);
#endif /* LWIP_NETIF_LINK_CALLBACK */
#if USE_ETHERNET_TCPIP
#if LWIP_AUTOIP
autoip_set_struct(&netif, &netif_autoip);
#endif /* LWIP_AUTOIP */
#if LWIP_DHCP
dhcp_set_struct(&netif, &netif_dhcp);
#endif /* LWIP_DHCP */
#if USE_DHCP
dhcp_start(&netif);
#elif USE_AUTOIP
autoip_start(&netif);
#else /* USE_DHCP */
netif_set_up(&netif);
#endif /* USE_DHCP */
#else /* USE_ETHERNET_TCPIP */
/* Use ethernet for PPPoE only */
netif.flags &= ~(NETIF_FLAG_ETHARP | NETIF_FLAG_IGMP); /* no ARP */
netif.flags |= NETIF_FLAG_ETHERNET; /* but pure ethernet */
#endif /* USE_ETHERNET_TCPIP */
#if PPP_SUPPORT && PPPOE_SUPPORT
/* start PPPoE after ethernet netif is added! */
ppp_desc = pppOverEthernetOpen(&netif, NULL, NULL, pppLinkStatusCallback, NULL);
#endif /* PPP_SUPPORT && PPPOE_SUPPORT */
#endif /* USE_ETHERNET */
#if USE_SLIPIF
LWIP_PORT_INIT_SLIP1_IPADDR(&ipaddr_slip1);
LWIP_PORT_INIT_SLIP1_GW(&gw_slip1);
LWIP_PORT_INIT_SLIP1_NETMASK(&netmask_slip1);
printf("Starting lwIP slipif, local interface IP is %s\n", ip_ntoa(&ipaddr_slip1));
#if SIO_USE_COMPORT
num_slip1++; /* COM ports cannot be 0-based */
#endif
netif_add(&slipif1, &ipaddr_slip1, &netmask_slip1, &gw_slip1, &num_slip1, slipif_init, ip_input);
#if !USE_ETHERNET
netif_set_default(&slipif1);
#endif /* !USE_ETHERNET */
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&slipif1, 1);
printf("SLIP ip6 linklocal address: ");
ip6_addr_debug_print(0xFFFFFFFF & ~LWIP_DBG_HALT, &slipif1.ip6_addr[0]);
printf("\n");
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&slipif1, status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
netif_set_link_callback(&slipif1, link_callback);
#endif /* LWIP_NETIF_LINK_CALLBACK */
netif_set_up(&slipif1);
#if USE_SLIPIF > 1
LWIP_PORT_INIT_SLIP2_IPADDR(&ipaddr_slip2);
LWIP_PORT_INIT_SLIP2_GW(&gw_slip2);
LWIP_PORT_INIT_SLIP2_NETMASK(&netmask_slip2);
printf("Starting lwIP SLIP if #2, local interface IP is %s\n", ip_ntoa(&ipaddr_slip2));
#if SIO_USE_COMPORT
num_slip2++; /* COM ports cannot be 0-based */
#endif
netif_add(&slipif2, &ipaddr_slip2, &netmask_slip2, &gw_slip2, &num_slip2, slipif_init, ip_input);
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&slipif1, 1);
printf("SLIP2 ip6 linklocal address: ");
ip6_addr_debug_print(0xFFFFFFFF & ~LWIP_DBG_HALT, &slipif2.ip6_addr[0]);
printf("\n");
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&slipif2, status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
netif_set_link_callback(&slipif2, link_callback);
#endif /* LWIP_NETIF_LINK_CALLBACK */
netif_set_up(&slipif2);
#endif /* USE_SLIPIF > 1*/
#endif /* USE_SLIPIF */
}
#if LWIP_DNS_APP && LWIP_DNS
void dns_found(const char *name, ip_addr_t *addr, void *arg)
{
LWIP_UNUSED_ARG(arg);
printf("%s: %s\n", name, addr ? ip_ntoa(addr) : "<not found>");
}
void dns_dorequest(void *arg)
{
char* dnsname = "3com.com";
ip_addr_t dnsresp;
LWIP_UNUSED_ARG(arg);
if (dns_gethostbyname(dnsname, &dnsresp, dns_found, 0) == ERR_OK) {
dns_found(dnsname, &dnsresp, 0);
}
}
#endif /* LWIP_DNS_APP && LWIP_DNS */
/* This function initializes applications */
static void
apps_init()
{
#if LWIP_DNS_APP && LWIP_DNS
/* wait until the netif is up (for dhcp, autoip or ppp) */
sys_timeout(5000, dns_dorequest, NULL);
#endif /* LWIP_DNS_APP && LWIP_DNS */
#if LWIP_CHARGEN_APP && LWIP_SOCKET
chargen_init();
#endif /* LWIP_CHARGEN_APP && LWIP_SOCKET */
#if LWIP_PING_APP && LWIP_RAW && LWIP_ICMP
ping_init();
#endif /* LWIP_PING_APP && LWIP_RAW && LWIP_ICMP */
#if LWIP_NETBIOS_APP && LWIP_UDP
netbios_init();
#endif /* LWIP_NETBIOS_APP && LWIP_UDP */
#if LWIP_HTTPD_APP && LWIP_TCP
#ifdef LWIP_HTTPD_APP_NETCONN
http_server_netconn_init();
#else /* LWIP_HTTPD_APP_NETCONN */
httpd_init();
#endif /* LWIP_HTTPD_APP_NETCONN */
#endif /* LWIP_HTTPD_APP && LWIP_TCP */
#if LWIP_NETIO_APP && LWIP_TCP
netio_init();
#endif /* LWIP_NETIO_APP && LWIP_TCP */
#if LWIP_RTP_APP && LWIP_SOCKET && LWIP_IGMP
rtp_init();
#endif /* LWIP_RTP_APP && LWIP_SOCKET && LWIP_IGMP */
#if LWIP_SNTP_APP && LWIP_SOCKET
sntp_init();
#endif /* LWIP_SNTP_APP && LWIP_SOCKET */
#if LWIP_SHELL_APP && LWIP_NETCONN
shell_init();
#endif /* LWIP_SHELL_APP && LWIP_NETCONN */
#if LWIP_TCPECHO_APP
#if LWIP_NETCONN && defined(LWIP_TCPECHO_APP_NETCONN)
tcpecho_init();
#else /* LWIP_NETCONN && defined(LWIP_TCPECHO_APP_NETCONN) */
echo_init();
#endif
#endif /* LWIP_TCPECHO_APP && LWIP_NETCONN */
#if LWIP_UDPECHO_APP && LWIP_NETCONN
udpecho_init();
#endif /* LWIP_UDPECHO_APP && LWIP_NETCONN */
#if LWIP_SOCKET_EXAMPLES_APP && LWIP_SOCKET
socket_examples_init();
#endif /* LWIP_SOCKET_EXAMPLES_APP && LWIP_SOCKET */
#ifdef LWIP_APP_INIT
LWIP_APP_INIT();
#endif
}
/* This function initializes this lwIP test. When NO_SYS=1, this is done in
* the main_loop context (there is no other one), when NO_SYS=0, this is done
* in the tcpip_thread context */
static void
test_init(void * arg)
{ /* remove compiler warning */
#if NO_SYS
LWIP_UNUSED_ARG(arg);
#else /* NO_SYS */
sys_sem_t *init_sem;
LWIP_ASSERT("arg != NULL", arg != NULL);
init_sem = (sys_sem_t*)arg;
#endif /* NO_SYS */
/* init randomizer again (seed per thread) */
srand(time(0));
/* init network interfaces */
msvc_netif_init();
/* init apps */
apps_init();
#if !NO_SYS
sys_sem_signal(init_sem);
#endif /* !NO_SYS */
}
#if PPP_SUPPORT
static void pppCloseCallback(void *arg)
{
int pd = (int)arg;
pppClose(pd);
}
#endif /* PPP_SUPPORT */
/* This is somewhat different to other ports: we have a main loop here:
* a dedicated task that waits for packets to arrive. This would normally be
* done from interrupt context with embedded hardware, but we don't get an
* interrupt in windows for that :-) */
void main_loop()
{
#if !NO_SYS
err_t err;
sys_sem_t init_sem;
#endif /* NO_SYS */
#if PPP_SUPPORT
#if !USE_ETHERNET
int count;
u8_t rxbuf[1024];
#endif
volatile int callClosePpp = 0;
#endif /* PPP_SUPPORT */
/* initialize lwIP stack, network interfaces and applications */
#if NO_SYS
lwip_init();
test_init(NULL);
#else /* NO_SYS */
err = sys_sem_new(&init_sem, 0);
tcpip_init(test_init, &init_sem);
/* we have to wait for initialization to finish before
* calling update_adapter()! */
sys_sem_wait(&init_sem);
sys_sem_free(&init_sem);
#endif /* NO_SYS */
/* MAIN LOOP for driver update (and timers if NO_SYS) */
while (!_kbhit()) {
#if NO_SYS
/* handle timers (already done in tcpip.c when NO_SYS=0) */
sys_check_timeouts();
#endif /* NO_SYS */
#if USE_ETHERNET
#if !PCAPIF_RX_USE_THREAD
/* check for packets and link status*/
pcapif_poll(&netif);
/* When pcapif_poll comes back, there are not packets, so sleep to
prevent 100% CPU load. Don't do this in an embedded system since it
increases latency! */
sys_msleep(1);
#else /* !PCAPIF_RX_USE_THREAD */
sys_msleep(50);
#endif /* !PCAPIF_RX_USE_THREAD */
#else /* USE_ETHERNET */
#if 0 /* set this to 1 if PPP_INPROC_OWNTHREAD==0 or not defined (see ppp.c) */
/* try to read characters from serial line and pass them to PPPoS */
count = sio_read(ppp_sio, (u8_t*)rxbuf, 1024);
if(count > 0) {
pppos_input(ppp_desc, rxbuf, count);
} else
#endif
{
/* nothing received, give other tasks a chance to run */
sys_msleep(1);
}
#endif /* USE_ETHERNET */
#if USE_SLIPIF
slipif_poll(&slipif1);
#if USE_SLIPIF > 1
slipif_poll(&slipif2);
#endif /* USE_SLIPIF > 1 */
#endif /* USE_SLIPIF */
#if ENABLE_LOOPBACK && !LWIP_NETIF_LOOPBACK_MULTITHREADING
/* check for loopback packets on all netifs */
netif_poll_all();
#endif /* ENABLE_LOOPBACK && !LWIP_NETIF_LOOPBACK_MULTITHREADING */
#if PPP_SUPPORT
{
int do_hup = 0;
if(do_hup) {
pppSigHUP(ppp_desc);
do_hup = 0;
}
}
if(callClosePpp && (ppp_desc >= 0)) {
/* make sure to disconnect PPP before stopping the program... */
callClosePpp = 0;
#if NO_SYS
pppClose(ppp_desc);
#else
tcpip_callback_with_block(pppCloseCallback, (void*)ppp_desc, 0);
#endif
ppp_desc = -1;
}
#endif /* PPP_SUPPORT */
}
#if PPP_SUPPORT
if(ppp_desc >= 0) {
u32_t started;
printf("Closing PPP connection...\n");
/* make sure to disconnect PPP before stopping the program... */
#if NO_SYS
pppClose(ppp_desc);
#else
tcpip_callback_with_block(pppCloseCallback, (void*)ppp_desc, 0);
#endif
ppp_desc = -1;
/* Wait for some time to let PPP finish... */
started = sys_now();
do
{
#if USE_ETHERNET && !PCAPIF_RX_USE_THREAD
pcapif_poll(&netif);
#else /* USE_ETHERNET && !PCAPIF_RX_USE_THREAD */
sys_msleep(50);
#endif /* USE_ETHERNET && !PCAPIF_RX_USE_THREAD */
/* @todo: need a better check here: only wait until PPP is down */
} while(sys_now() - started < 5000);
}
#endif /* PPP_SUPPORT */
#if USE_ETHERNET
/* release the pcap library... */
pcapif_shutdown(&netif);
#endif /* USE_ETHERNET */
}
#if PPP_SUPPORT && PPPOS_SUPPORT
int main(int argc, char **argv)
#else /* PPP_SUPPORT && PPPOS_SUPPORT */
int main(void)
#endif /* PPP_SUPPORT && PPPOS_SUPPORT */
{
#if PPP_SUPPORT && PPPOS_SUPPORT
if(argc > 1) {
sio_idx = (u8_t)atoi(argv[1]);
}
printf("Using serial port %d for PPP\n", sio_idx);
#endif /* PPP_SUPPORT && PPPOS_SUPPORT */
/* no stdio-buffering, please! */
setvbuf(stdout, NULL,_IONBF, 0);
main_loop();
return 0;
}
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