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ctrace.c revision 1.3 
      1 /*-
      2  * Copyright (c) 1992, 1993
      3  *	The Regents of the University of California.  All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 /* from: static char sccsid[] = "@(#)ctrace.c	8.2 (Berkeley) 10/5/93"; */
     36 static char *rcsid = "$Id: ctrace.c,v 1.3 1994/01/24 08:36:43 cgd Exp $";
     37 #endif /* not lint */
     38 
     39 #ifdef DEBUG
     40 #include <stdio.h>
     41 
     42 #ifdef __STDC__
     43 #include <stdarg.h>
     44 #else
     45 #include <varargs.h>
     46 #endif
     47 
     48 #ifndef TFILE
     49 #define	TFILE	"__curses.out"
     50 #endif
     51 
     52 static FILE *tracefp;			/* Curses debugging file descriptor. */
     53 
     54 void
     55 #ifdef __STDC__
     56 __CTRACE(const char *fmt, ...)
     57 #else
     58 __CTRACE(fmt, va_alist)
     59 	char *fmt;
     60 	va_dcl
     61 #endif
     62 {
     63 	va_list ap;
     64 #ifdef __STDC__
     65 	va_start(ap, fmt);
     66 #else
     67 	va_start(ap);
     68 #endif
     69 	if (tracefp == NULL)
     70 		tracefp = fopen(TFILE, "w");
     71 	if (tracefp == NULL)
     72 		return;
     73 	(void)vfprintf(tracefp, fmt, ap);
     74 	va_end(ap);
     75 	(void)fflush(tracefp);
     76 }
     77 #endif
     78