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      1 /*	$NetBSD: subr.c,v 1.18 2011/06/01 21:28:33 alnsn 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 1.18 2011/06/01 21:28:33 alnsn 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 'f':
     77 			fac = KTRFAC_EXEC_FD;
     78 			break;
     79 		case 'i':
     80 			fac = KTRFAC_GENIO;
     81 			break;
     82 		case 'n':
     83 			fac = KTRFAC_NAMEI;
     84 			break;
     85 		case 's':
     86 			fac = KTRFAC_PSIG;
     87 			break;
     88 		case 'u':
     89 			fac = KTRFAC_USER;
     90 			break;
     91 		case 'S':
     92 			fac = KTRFAC_MIB;
     93 			break;
     94 		case 'v':
     95 			fac = KTRFAC_EXEC_ENV;
     96 			break;
     97 		case 'w':
     98 			fac = KTRFAC_CSW;
     99 			break;
    100 		case '+':
    101 			if (!add) {
    102 				add = 1;
    103 				continue;
    104 			}
    105 			fac = DEF_POINTS;
    106 			break;
    107 		case '-':
    108 			add = 0;
    109 			continue;
    110 		default:
    111 			return (-1);
    112 		}
    113 		if (add)
    114 			facs |= fac;
    115 		else
    116 			facs &= ~fac;
    117 	}
    118 }
    119