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242 lines
6.0 KiB
C
242 lines
6.0 KiB
C
/*
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* Copyright (c) 2003, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the Contiki desktop OS.
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*
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* $Id: config.c,v 1.1 2006/06/17 22:41:25 adamdunkels Exp $
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*
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*/
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#include "program-handler.h"
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#include "contiki-net.h"
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#include "cfs/cfs.h"
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struct ptentry {
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char c;
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char * (* pfunc)(char *str);
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};
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/*-----------------------------------------------------------------------------------*/
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static char *
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parse(char *str, struct ptentry *t)
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{
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struct ptentry *p;
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/* Loop over the parse table entries in t in order to find one that
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matches the first character in str. */
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for(p = t; p->c != 0; ++p) {
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if(*str == p->c) {
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/* Skip rest of the characters up to the first space. */
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while(*str != ' ') {
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++str;
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}
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/* Skip all spaces.*/
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while(*str == ' ') {
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++str;
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}
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/* Call parse table entry function and return. */
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return p->pfunc(str);
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}
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}
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/* Did not find matching entry in parse table. We just call the
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default handler supplied by the caller and return. */
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return p->pfunc(str);
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}
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/*-----------------------------------------------------------------------------------*/
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static char *
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skipnewline(char *str)
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{
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/* Skip all characters until the newline. */
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while(*str != '\n') {
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++str;
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}
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/* Return a pointer to the first character after the newline. */
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return str + 1;
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}
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/*-----------------------------------------------------------------------------------*/
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static char *
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nullterminate(char *str)
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{
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char *nt;
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/* Nullterminate string. Start with finding newline character. */
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for(nt = str; *nt != '\r' &&
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*nt != '\n'; ++nt);
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/* Replace newline with a null char. */
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*nt = 0;
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/* Remove trailing spaces. */
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while(nt > str && *(nt - 1) == ' ') {
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*(nt - 1) = 0;
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--nt;
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}
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/* Return pointer to null char. */
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return nt;
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}
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/*-----------------------------------------------------------------------------------*/
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static char *
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loadfile(char *str)
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{
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char *nt;
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nt = nullterminate(str);
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/* Call loader function. */
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program_handler_load(str, NULL);
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return nt + 1;
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}
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/*-----------------------------------------------------------------------------------*/
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static char *
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screensaverconf(char *str)
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{
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char *nt;
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nt = nullterminate(str);
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program_handler_setscreensaver(str);
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return nt + 1;
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}
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/*-----------------------------------------------------------------------------------*/
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static u16_t addr[2];
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static char *
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ipaddrconf(char *str)
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{
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char *nt;
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nt = nullterminate(str);
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if(uiplib_ipaddrconv(str, (unsigned char *)addr)) {
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uip_sethostaddr(addr);
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}
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return nt + 1;
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}
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/*-----------------------------------------------------------------------------------*/
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static char *
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netmaskconf(char *str)
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{
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char *nt;
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nt = nullterminate(str);
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if(uiplib_ipaddrconv(str, (unsigned char *)addr)) {
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uip_setnetmask(addr);
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}
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return nt + 1;
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}
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/*-----------------------------------------------------------------------------------*/
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static char *
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drconf(char *str)
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{
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char *nt;
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nt = nullterminate(str);
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if(uiplib_ipaddrconv(str, (unsigned char *)addr)) {
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uip_setdraddr(addr);
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}
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return nt + 1;
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}
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/*-----------------------------------------------------------------------------------*/
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static char *
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dnsconf(char *str)
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{
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char *nt;
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nt = nullterminate(str);
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if(uiplib_ipaddrconv(str, (unsigned char *)addr)) {
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resolv_conf(addr);
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}
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return nt + 1;
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}
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/*-----------------------------------------------------------------------------------*/
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static struct ptentry configparsetab[] =
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{{'n', loadfile},
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{'t', loadfile},
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{'c', loadfile},
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{'s', screensaverconf},
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{'i', ipaddrconf},
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{'m', netmaskconf},
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{'r', drconf},
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{'d', dnsconf},
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{'#', skipnewline},
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/* Default action */
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{0, skipnewline}};
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static void
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configscript(void)
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{
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static char line[40], *lineptr;
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/* static struct c64_fs_file f;*/
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int f;
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if((f = cfs_open("config.cfg", 0)) == -1) {
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return;
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}
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line[0] = ' ';
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while(line[0] != '.' &&
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line[0] != 0) {
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lineptr = line;
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do {
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if(cfs_read(f, lineptr, 1) != 1) {
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cfs_close(f);
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return;
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}
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++lineptr;
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} while(*(lineptr - 1) != '\n' &&
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*(lineptr - 1) != '\r');
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*lineptr = 0;
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if(line[0] != '.' &&
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line[0] != 0) {
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parse(line, configparsetab);
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}
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}
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cfs_close(f);
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return;
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}
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/*-----------------------------------------------------------------------------------*/
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LOADER_INIT_FUNC(config_init, arg)
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{
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arg_free(arg);
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program_handler_setscreensaver(NULL);
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configscript();
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LOADER_UNLOAD();
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}
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/*-----------------------------------------------------------------------------------*/
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