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      1 /*	$NetBSD: pgfs_debug.c,v 1.1 2011/10/12 01:05:00 yamt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c)2010,2011 YAMAMOTO Takashi,
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 /*
     30  * debug code
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 #ifndef lint
     35 __RCSID("$NetBSD: pgfs_debug.c,v 1.1 2011/10/12 01:05:00 yamt Exp $");
     36 #endif /* not lint */
     37 
     38 #include <sys/syslimits.h>	/* PATH_MAX */
     39 
     40 #include <stdarg.h>
     41 #include <stdio.h>
     42 
     43 #include "pgfs_debug.h"
     44 
     45 bool pgfs_dodprintf = false;
     46 
     47 void
     48 _dprintf(const char *func, const char *fmt, ...)
     49 {
     50 	char buf[PATH_MAX * 2];
     51 	va_list ap;
     52 
     53 	if (!pgfs_dodprintf) {
     54 		return;
     55 	}
     56 	va_start(ap, fmt);
     57 	vsnprintf(buf, sizeof(buf), fmt, ap);
     58 	va_end(ap);
     59 	fprintf(stderr, "%s: %s", func, buf);
     60 }
     61