Home | History | Annotate | Line # | Download | only in ktrace
subr.c revision 1.11 
      1 /*	$NetBSD: subr.c,v 1.11 2003/08/07 11:14:14 agc 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 1.11 2003/08/07 11:14:14 agc Exp $");
     38 #endif
     39 #endif /* not lint */
     40 
     41 #include <sys/param.h>
     42 #include <sys/file.h>
     43 #include <sys/user.h>
     44 #include <sys/proc.h>
     45 #include <sys/time.h>
     46 #include <sys/ktrace.h>
     47 
     48 #include <stdio.h>
     49 
     50 #include "ktrace.h"
     51 
     52 int
     53 getpoints(int facs, char *s)
     54 {
     55 	int fac;
     56 	int add = 1;
     57 
     58 	/* Make -t-x equivalent to -t+-x since that is rather more useful */
     59 	if (*s == '-' && (facs & ALL_POINTS) == 0)
     60 		facs |= DEF_POINTS;
     61 
     62 	for (;;) {
     63 		switch (*s++) {
     64 		case 0:
     65 			return facs;
     66 		case 'A':
     67 			fac = ALL_POINTS;
     68 			break;
     69 		case 'a':
     70 			fac = KTRFAC_EXEC_ARG;
     71 			break;
     72 		case 'c':
     73 			fac = KTRFAC_SYSCALL | KTRFAC_SYSRET;
     74 			break;
     75 		case 'e':
     76 			fac = KTRFAC_EMUL;
     77 			break;
     78 		case 'i':
     79 			fac = KTRFAC_GENIO;
     80 			break;
     81 		case 'n':
     82 			fac = KTRFAC_NAMEI;
     83 			break;
     84 		case 'm':
     85 			fac = KTRFAC_MMSG;
     86 			break;
     87 		case 's':
     88 			fac = KTRFAC_PSIG;
     89 			break;
     90 		case 'u':
     91 			fac = KTRFAC_USER;
     92 			break;
     93 		case 'v':
     94 			fac = KTRFAC_EXEC_ENV;
     95 			break;
     96 		case 'w':
     97 			fac = KTRFAC_CSW;
     98 			break;
     99 		case '+':
    100 			if (!add) {
    101 				add = 1;
    102 				continue;
    103 			}
    104 			fac = DEF_POINTS;
    105 			break;
    106 		case '-':
    107 			add = 0;
    108 			continue;
    109 		default:
    110 			return (-1);
    111 		}
    112 		if (add)
    113 			facs |= fac;
    114 		else
    115 			facs &= ~fac;
    116 	}
    117 }
    118