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/*
* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
* log.c: Logger functions.
*
* Copyright (C) 2002 by the past and present ircd coders, and others.
*
* 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 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.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* $Id$
*/
#include "stdinc.h"
#include "log.h"
#include "irc_string.h"
#include "ircd.h"
#include "conf.h"
#include "s_misc.h"
static struct {
char path[PATH_MAX + 1];
size_t size;
FILE *file;
} log_type_table[LOG_TYPE_LAST];
int
log_add_file(enum log_type type, size_t size, const char *path)
{
if (log_type_table[type].file)
fclose(log_type_table[type].file);
strlcpy(log_type_table[type].path, path, sizeof(log_type_table[type].path));
log_type_table[type].size = size;
return (log_type_table[type].file = fopen(path, "a")) != NULL;
}
void
log_close_all(void)
{
unsigned int type = 0;
while (++type < LOG_TYPE_LAST)
{
if (log_type_table[type].file == NULL)
continue;
fclose(log_type_table[type].file);
log_type_table[type].file = NULL;
}
}
static int
log_exceed_size(unsigned int type)
{
struct stat sb;
if (!log_type_table[type].size)
return 0;
if (stat(log_type_table[type].path, &sb) < 0)
return -1;
return (size_t)sb.st_size > log_type_table[type].size;
}
static void
log_write(enum log_type type, const char *message)
{
char buf[IRCD_BUFSIZE];
strftime(buf, sizeof(buf), "[%FT%H:%M:%S%z]", localtime(&CurrentTime));
fprintf(log_type_table[type].file, "%s %s\n", buf, message);
fflush(log_type_table[type].file);
}
void
ilog(enum log_type type, const char *fmt, ...)
{
char buf[LOG_BUFSIZE];
va_list args;
if (!log_type_table[type].file || !ConfigLoggingEntry.use_logging)
return;
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
log_write(type, buf);
if (log_exceed_size(type) <= 0)
return;
snprintf(buf, sizeof(buf), "Rotating logfile %s",
log_type_table[type].path);
log_write(type, buf);
fclose(log_type_table[type].file);
log_type_table[type].file = NULL;
snprintf(buf, sizeof(buf), "%s.old", log_type_table[type].path);
unlink(buf);
rename(log_type_table[type].path, buf);
log_add_file(type, log_type_table[type].size, log_type_table[type].path);
}
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