usr/src/cmd/mail/Dout.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  23 /*        All Rights Reserved   */
  24
  25
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.    */
  27 /*
  28     NAME
  29         Dout - Print debug output
  30
  31     SYNOPSIS
  32         void Dout(char *subname, int level, char *msg, ...)
  33
  34     DESCRIPTION
  35         Dout prints debugging output if debugging is turned
  36         on (-x specified) and the level of this message is
  37         lower than the value of the global variable debug.
  38         The subroutine name is printed if it is not a null
  39         string.
  40 */
  41 #include "mail.h"
  42 #ifdef __STDC__
  43 # include <stdarg.h>
  44 #else
  45 # include <varargs.h>
  46 #endif
  47
  48 /* VARARGS3 PRINTFLIKE3 */
  49 void
  50 #ifdef __STDC__
  51 Dout(char *subname, int level, char *fmt, ...)
  52 #else
  53 # ifdef lint
  54 Dout(Xsubname, Xlevel, Xfmt, va_alist)
  55 char *Xsubname, *Xfmt;
  56 int Xlevel;
  57 va_dcl
  58 # else
  59 Dout(va_alist)
  60 va_dcl
  61 # endif
  62 #endif
  63 {
  64 #ifndef __STDC__
  65         char    *subname;
  66         int     level;
  67         char    *fmt;
  68 #endif
  69         va_list args;
  70
  71 #ifdef __STDC__
  72         va_start(args, fmt);
  73 #else
  74         va_start(args);
  75         subname = va_arg(args, char *);
  76         level = va_arg(args, int);
  77         fmt = va_arg(args, char *);
  78 #endif
  79
  80         if (debug > level) {
  81                 if (subname && *subname) {
  82                         fprintf(dbgfp,"%s(): ", subname);
  83                 }
  84                 vfprintf(dbgfp, fmt, args);
  85         }
  86         va_end(args);
  87 }