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/* Copyright (c) 1998-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1998.
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; 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, see <https://www.gnu.org/licenses/>. */
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>
#include <unistd.h>
#include "dbg_log.h"
#include "nscd.h"
/* if in debug mode and we have a debug file, we write the messages to it,
if in debug mode and no debug file, we write the messages to stderr,
else to syslog. */
static char *logfilename;
FILE *dbgout;
int debug_level;
void
set_logfile (const char *logfile)
{
logfilename = strdup (logfile);
}
int
init_logfile (void)
{
if (logfilename)
{
dbgout = fopen64 (logfilename, "a");
return dbgout == NULL ? 0 : 1;
}
return 1;
}
void
dbg_log (const char *fmt,...)
{
va_list ap;
char msg2[512];
va_start (ap, fmt);
vsnprintf (msg2, sizeof (msg2), fmt, ap);
if (debug_level > 0)
{
time_t t = time (NULL);
struct tm now;
localtime_r (&t, &now);
char buf[256];
strftime (buf, sizeof (buf), "%c", &now);
char msg[1024];
snprintf (msg, sizeof (msg), "%s - %d: %s%s", buf, getpid (), msg2,
msg2[strlen (msg2) - 1] == '\n' ? "" : "\n");
if (dbgout)
{
fputs (msg, dbgout);
fflush (dbgout);
}
else
fputs (msg, stderr);
}
else
syslog (LOG_NOTICE, "%d %s", getpid (), msg2);
va_end (ap);
}
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