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/* $Id: plugin_seti.c,v 1.3 2004/06/17 06:23:43 reinelt Exp $
*
* plugin for seti@home status reporting
*
* Copyright 2004 Michael Reinelt <reinelt@eunet.at>
* Copyright 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
*
* based on the old seti client which is
* Copyright 2001 Axel Ehnert <axel@ehnert.net>
*
*
* This file is part of LCD4Linux.
*
* LCD4Linux is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* LCD4Linux is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* $Log: plugin_seti.c,v $
* Revision 1.3 2004/06/17 06:23:43 reinelt
*
* hash handling rewritten to solve performance issues
*
* Revision 1.2 2004/03/13 19:06:01 reinelt
* ChangeLog and Status update; small glitch in plugin_seti fixed.
*
* Revision 1.1 2004/03/13 06:49:20 reinelt
* seti@home plugin ported to NextGeneration
*
*/
/*
* exported functions:
*
* int plugin_init_seti (void)
* adds functions to access /seti/state.sah
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include "debug.h"
#include "plugin.h"
#include "hash.h"
#include "cfg.h"
#define SECTION "Plugin:Seti"
#define DIRKEY "Directory"
#define STATEFILE "state.sah"
static HASH SETI;
static int fatal = 0;
static int parse_seti (void)
{
static char fn[256] = "";
FILE *stream;
int age;
// if a fatal error occured, do nothing
if (fatal != 0) return -1;
// reread every 100 msec only
age=hash_age(&SETI, NULL);
if (age>0 && age<=100) return 0;
if (fn[0] == '\0') {
char *dir = cfg_get (SECTION, DIRKEY, NULL);
if (dir == NULL || *dir == '\0') {
error ("no '%s.%s' entry from %s\n", SECTION, DIRKEY, cfg_source());
fatal = 1;
return -1;
}
if (strlen(dir) > sizeof(fn)-sizeof(STATEFILE)-2) {
error ("entry '%s.%s' too long from %s!\n", SECTION, DIRKEY, cfg_source());
fatal = 1;
free (dir);
return -1;
}
strcpy (fn, dir);
if (fn[strlen(fn)-1]!='/')
strcat (fn, "/");
strcat (fn, STATEFILE);
free (dir);
}
stream = fopen(fn, "r");
if (stream == NULL) {
error ("fopen(%s) failed: %s", fn, strerror(errno));
return -1;
}
while (!feof(stream)) {
char buffer[256];
char *c, *key, *val;
fgets (buffer, sizeof(buffer), stream);
c=strchr(buffer, '=');
if (c==NULL) continue;
key=buffer; val=c+1;
// strip leading blanks from key
while (isspace(*key)) *key++='\0';
// strip trailing blanks from key
do *c='\0'; while (isspace(*--c));
// strip leading blanks from value
while (isspace(*val)) *val++='\0';
// strip trailing blanks from value
for (c=val; *c!='\0';c++);
while (isspace(*--c)) *c='\0';
// add entry to hash table
hash_put (&SETI, key, val);
}
fclose (stream);
return 0;
}
static void my_seti (RESULT *result, RESULT *arg1)
{
char *key, *val;
if (parse_seti()<0) {
SetResult(&result, R_STRING, "");
return;
}
key=R2S(arg1);
val=hash_get(&SETI, key, NULL);
if (val==NULL) val="";
SetResult(&result, R_STRING, val);
}
int plugin_init_seti (void)
{
hash_create(&SETI);
AddFunction ("seti", 1, my_seti);
return 0;
}
void plugin_exit_seti(void)
{
hash_destroy(&SETI);
}
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