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/*
* Copyright (C) 2014 Neverball authors
*
* NEVERBALL 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 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include "log.h"
#include "common.h"
#include "version.h"
#include "fs.h"
static char log_header[MAXSTR];
static fs_file log_fp;
/*---------------------------------------------------------------------------*/
void log_printf(const char *fmt, ...)
{
char *str;
int len;
va_list ap;
va_start(ap, fmt);
len = 1 + vsnprintf(NULL, 0, fmt, ap);
va_end(ap);
if ((str = malloc(len)))
{
va_start(ap, fmt);
vsnprintf(str, len, fmt, ap);
va_end(ap);
fputs(str, stderr);
if (log_fp)
{
/* These are printfs to get us CRLF conversion. */
if (log_header[0])
{
fs_printf(log_fp, "%s\n", log_header);
log_header[0] = 0;
}
fs_printf(log_fp, "%s", str);
fs_flush(log_fp);
}
free(str);
}
}
/*---------------------------------------------------------------------------*/
void log_init(const char *name, const char *path)
{
if (!log_fp)
{
if ((log_fp = fs_open_append(path)))
{
/* Printed on first message. */
sprintf(log_header, "%s - %s %s",
date_to_str(time(NULL)),
name, VERSION);
}
else
{
fprintf(stderr, "Failure to open %s\n", path);
}
}
}
void log_quit(void)
{
if (log_fp)
{
fs_close(log_fp);
log_fp = NULL;
log_header[0] = 0;
}
}
/*---------------------------------------------------------------------------*/
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