nes-proj/cpu/6502/lib/config.c

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/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* 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 Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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.
*
* This file is part of the Contiki operating system.
*
* Author: Oliver Schmidt <ol.sc@web.de>
*
*/
#include <stdlib.h>
#include <string.h>
#include "contiki-net.h"
#include "cfs/cfs.h"
#include "sys/log.h"
#include "lib/error.h"
#include "net/ethernet-drv.h"
/*-----------------------------------------------------------------------------------*/
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#if LOG_CONF_ENABLED
static char *
ipaddrtoa(uip_ipaddr_t *ipaddr, char *buffer)
{
char *ptr = buffer;
uint8_t i;
for(i = 0; i < 4; ++i) {
*ptr = '.';
utoa(ipaddr->u8[i], ++ptr, 10);
ptr += strlen(ptr);
}
return buffer + 1;
}
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#endif /* LOG_CONF_ENABLED */
/*-----------------------------------------------------------------------------------*/
struct ethernet_config *
config_read(char *filename)
{
static struct {
uip_ipaddr_t hostaddr;
uip_ipaddr_t netmask;
uip_ipaddr_t draddr;
uip_ipaddr_t resolvaddr;
struct ethernet_config ethernetcfg;
} config;
int file;
file = cfs_open(filename, CFS_READ);
if(file < 0) {
log_message(filename, ": File not found");
error_exit();
}
if(cfs_read(file, &config, sizeof(config)) < sizeof(config)
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- sizeof(config.ethernetcfg.name)) {
log_message(filename, ": No config file");
error_exit();
}
cfs_close(file);
log_message("IP Address: ", ipaddrtoa(&config.hostaddr, uip_buf));
log_message("Subnet Mask: ", ipaddrtoa(&config.netmask, uip_buf));
log_message("Def. Router: ", ipaddrtoa(&config.draddr, uip_buf));
log_message("DNS Server: ", ipaddrtoa(&config.resolvaddr, uip_buf));
#ifndef ETHERNET
log_message("Eth. Driver: ", config.ethernetcfg.name);
#else /* !ETHERNET */
#define _stringize(arg) #arg
#define stringize(arg) _stringize(arg)
log_message("Eth. Driver: ", stringize(ETHERNET));
#undef _stringize
#undef stringize
#endif /* !ETHERNET */
log_message("Driver Port: $", utoa(config.ethernetcfg.addr, uip_buf, 16));
uip_sethostaddr(&config.hostaddr);
uip_setnetmask(&config.netmask);
uip_setdraddr(&config.draddr);
#if WITH_DNS
uip_nameserver_update(&config.resolvaddr, UIP_NAMESERVER_INFINITE_LIFETIME);
#endif /* WITH_DNS */
return &config.ethernetcfg;
}
/*-----------------------------------------------------------------------------------*/