log.c

radius服务器

/*
 * log.c	Functions in the library call radlib_log() which
 *		sets a global error string "char *librad_errstr".
 *
 * Version:	$Id: log.c,v 1.7 2003/09/12 19:25:29 phampson Exp $
 *
 *   This library is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU Lesser General Public
 *   License as published by the Free Software Foundation; either
 *   version 2.1 of the License, or (at your option) any later version.
 *
 *   This library 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
 *   Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public
 *   License along with this library; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
 *
 * Copyright 2000  The FreeRADIUS server project
 */

static const char rcsid[] = "$Id: log.c,v 1.7 2003/09/12 19:25:29 phampson Exp $";

#include "autoconf.h"

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>

#include "libradius.h"

char librad_errstr[1024];

/*
 *  Do logging to a static buffer.  Note that we MIGHT be asked
 *  to write a previous log message to librad_errstr.
 *
 *  This also isn't multithreaded-safe, so it'll have to be changed
 *  in the future.
 */
void librad_log(const char *fmt, ...)
{
	va_list ap;
	char my_errstr[sizeof(librad_errstr)];

	va_start(ap, fmt);

#ifdef HAVE_VSNPRINTF
	vsnprintf(my_errstr, sizeof(my_errstr), fmt, ap);
#else
	vsprintf(my_errstr, fmt, ap);
	if (strlen(my_errstr) >= sizeof(my_errstr))
		/* What can we do .. */
		_exit(42);
#endif
	strcpy(librad_errstr, my_errstr);
	va_end(ap);
}

void librad_perror(const char *fmt, ...)
{
	va_list ap;

	va_start(ap, fmt);
	vfprintf(stderr, fmt, ap);
	if (strchr(fmt, ':') == NULL)
		fprintf(stderr, ": ");
	fprintf(stderr, "%s\n", librad_errstr);
}