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ctrace.c revision 1.1 
      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 static char sccsid[] = "@(#)ctrace.c	8.1 (Berkeley) 6/4/93";
     36 #endif /* not lint */
     37 
     38 #ifdef DEBUG
     39 #include <stdio.h>
     40 
     41 #if __STDC__
     42 #include <stdarg.h>
     43 #else
     44 #include <varargs.h>
     45 #endif
     46 
     47 #ifndef TFILE
     48 #define	TFILE	"__curses.out"
     49 #endif
     50 
     51 static FILE *tracefp;			/* Curses debugging file descriptor. */
     52 
     53 void
     54 #if __STDC__
     55 __CTRACE(const char *fmt, ...)
     56 #else
     57 __CTRACE(fmt, va_alist)
     58 	char *fmt;
     59 	va_dcl
     60 #endif
     61 {
     62 	va_list ap;
     63 #if __STDC__
     64 	va_start(ap, fmt);
     65 #else
     66 	va_start(ap);
     67 #endif
     68 	if (tracefp == NULL)
     69 		tracefp = fopen(TFILE, "w");
     70 	if (tracefp == NULL)
     71 		return;
     72 	(void)vfprintf(tracefp, fmt, ap);
     73 	va_end(ap);
     74 	(void)fflush(tracefp);
     75 }
     76 #endif
     77