usr.bin/ktrace/subr.c

   1 /*      $NetBSD: subr.c,v 1.15 2006/09/23 22:01:04 manu Exp $   */
   2
   3 /*-
   4  * Copyright (c) 1988, 1993
   5  *      The Regents of the University of California.  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  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 #if 0
  35 static char sccsid[] = "@(#)subr.c      8.2 (Berkeley) 4/28/95";
  36 #else
  37 __RCSID("$NetBSD: subr.c,v 1.15 2006/09/23 22:01:04 manu Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <sys/param.h>
  42 #include <sys/time.h>
  43 #include <sys/uio.h>
  44 #include <sys/ktrace.h>
  45
  46 #include <stdio.h>
  47
  48 #include "ktrace.h"
  49
  50 int
  51 getpoints(int facs, char *s)
  52 {
  53         int fac;
  54         int add = 1;
  55
  56         /* Make -t-x equivalent to -t+-x since that is rather more useful */
  57         if (*s == '-' && (facs & ALL_POINTS) == 0)
  58                 facs |= DEF_POINTS;
  59
  60         for (;;) {
  61                 switch (*s++) {
  62                 case 0:
  63                         return facs;
  64                 case 'A':
  65                         fac = ALL_POINTS;
  66                         break;
  67                 case 'a':
  68                         fac = KTRFAC_EXEC_ARG;
  69                         break;
  70                 case 'c':
  71                         fac = KTRFAC_SYSCALL | KTRFAC_SYSRET;
  72                         break;
  73                 case 'e':
  74                         fac = KTRFAC_EMUL;
  75                         break;
  76                 case 'i':
  77                         fac = KTRFAC_GENIO;
  78                         break;
  79                 case 'n':
  80                         fac = KTRFAC_NAMEI;
  81                         break;
  82                 case 'm':
  83                         fac = KTRFAC_MMSG;
  84                         break;
  85                 case 'l':
  86                         fac = KTRFAC_MOOL;
  87                         break;
  88                 case 's':
  89                         fac = KTRFAC_PSIG;
  90                         break;
  91                 case 'u':
  92                         fac = KTRFAC_USER;
  93                         break;
  94                 case 'S':
  95                         fac = KTRFAC_MIB;
  96                         break;
  97                 case 'v':
  98                         fac = KTRFAC_EXEC_ENV;
  99                         break;
 100                 case 'w':
 101                         fac = KTRFAC_CSW;
 102                         break;
 103                 case '+':
 104                         if (!add) {
 105                                 add = 1;
 106                                 continue;
 107                         }
 108                         fac = DEF_POINTS;
 109                         break;
 110                 case '-':
 111                         add = 0;
 112                         continue;
 113                 default:
 114                         return (-1);
 115                 }
 116                 if (add)
 117                         facs |= fac;
 118                 else
 119                         facs &= ~fac;
 120         }
 121 }