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/* $Id: plugin_seti.c 1136 2010-11-28 16:07:16Z mzuther $
* $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/plugin_seti.c $
*
* plugin for seti@home status reporting
*
* Copyright (C) 2004 Michael Reinelt <michael@reinelt.co.at>
* Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
*
* based on the old seti client which is
* Copyright (C) 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.
*
*/
/*
* 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 occurred, 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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