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

89 lines
3.3 KiB
C

/*
* 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>
*
* $Id: config.c,v 1.1 2007/11/27 21:42:02 oliverschmidt Exp $
*/
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include "contiki-net.h"
#include "lib/error.h"
#include "net/ethernet-drv.h"
/*-----------------------------------------------------------------------------------*/
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 = open(filename, O_RDONLY);
if(file < 0) {
fprintf(stderr, "%s: %s\n", filename, strerror(errno));
error_exit();
}
if(read(file, &config, sizeof(config)) < sizeof(config)
- sizeof(config.ethernetcfg.name)) {
fprintf(stderr, "%s: %s\n", filename, "No Config File");
error_exit();
}
close(file);
fprintf(stderr, "IP Address: %d.%d.%d.%d\n", uip_ipaddr_to_quad(&config.hostaddr));
fprintf(stderr, "Subnet Mask: %d.%d.%d.%d\n", uip_ipaddr_to_quad(&config.netmask));
fprintf(stderr, "Def. Router: %d.%d.%d.%d\n", uip_ipaddr_to_quad(&config.draddr));
fprintf(stderr, "DNS Server: %d.%d.%d.%d\n", uip_ipaddr_to_quad(&config.resolvaddr));
fprintf(stderr, "Eth. Driver: %s at $%X\n", config.ethernetcfg.name,
config.ethernetcfg.addr);
uip_sethostaddr(&config.hostaddr);
uip_setnetmask(&config.netmask);
uip_setdraddr(&config.draddr);
resolv_conf(&config.resolvaddr);
return &config.ethernetcfg;
}
/*-----------------------------------------------------------------------------------*/