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conky/src/conf_cookie.c

82 lines
2.0 KiB
C

/* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
*
* Conky, a system monitor, based on torsmo
*
* Please see COPYING for details
*
* Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
* (see AUTHORS)
* All rights reserved.
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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, see <http://www.gnu.org/licenses/>.
*
* vim: ts=4 sw=4 noet ai cindent syntax=c
*
*/
#define _GNU_SOURCE
#include "config.h"
#include <stdio.h>
#include <sys/types.h>
#include "defconfig.h"
#if defined(HAVE_FOPENCOOKIE)
#define COOKIE_LEN_T size_t
#define COOKIE_RET_T ssize_t
#else
#define COOKIE_LEN_T int
#define COOKIE_RET_T int
#endif
static COOKIE_RET_T
conf_read(void *cookie, char *buf, COOKIE_LEN_T size)
{
static int col = 0, row = 0;
COOKIE_LEN_T i = 0;
const char *conf[] = defconfig;
(void)cookie;
while (i < size) {
if (!(conf[row])) /* end of rows */
break;
if (!(conf[row][col])) { /* end of line */
row++;
col = 0;
continue;
}
buf[i++] = conf[row][col++];
}
return i;
}
#if defined(HAVE_FOPENCOOKIE)
static cookie_io_functions_t conf_cookie = {
.read = &conf_read,
.write = NULL,
.seek = NULL,
.close = NULL,
};
FILE *conf_cookie_open(void)
{
return fopencookie(NULL, "r", conf_cookie);
}
#elif defined(HAVE_FUNOPEN)
FILE *conf_cookie_open(void)
{
return funopen(NULL, &conf_read, NULL, NULL, NULL);
}
#else
FILE *conf_cookie_open(void) { return NULL; }
#endif