xref: /openbsd-src/usr.bin/ktrace/subr.c (revision 46035553bfdd96e63c94e32da0210227ec2e3cf1)
1 /*	$OpenBSD: subr.c,v 1.14 2018/04/26 12:42:51 guenther Exp $	*/
2 /*	$NetBSD: subr.c,v 1.6 1995/08/31 23:01:45 jtc Exp $	*/
3 
4 /*-
5  * Copyright (c) 1988, 1993
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #include <sys/param.h>	/* MAXCOMLEN */
34 #include <sys/time.h>
35 #include <sys/ktrace.h>
36 
37 #include "ktrace.h"
38 #include "extern.h"
39 
40 /*
41  * If you change the trace point letters, then update to match:
42  * ktrace/ktrace.1, ktrace/ltrace.1, kdump/kdump.1, and
43  * usage() in kdump/kdump.c
44  */
45 int
46 getpoints(const char *s, int defpoints)
47 {
48 	int facs = 0;
49 
50 	while (*s) {
51 		switch(*s) {
52 		case 'c':
53 			facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET;
54 			break;
55 		case 'i':
56 			facs |= KTRFAC_GENIO;
57 			break;
58 		case 'n':
59 			facs |= KTRFAC_NAMEI;
60 			break;
61 		case 'p':
62 			facs |= KTRFAC_PLEDGE;
63 			break;
64 		case 's':
65 			facs |= KTRFAC_PSIG;
66 			break;
67 		case 't':
68 			facs |= KTRFAC_STRUCT;
69 			break;
70 		case 'u':
71 			facs |= KTRFAC_USER;
72 			break;
73 		case 'x':
74 			facs |= KTRFAC_EXECARGS;
75 			break;
76 		case 'X':
77 			facs |= KTRFAC_EXECENV;
78 			break;
79 		case '+':
80 			facs |= defpoints;
81 			break;
82 		default:
83 			return (-1);
84 		}
85 		s++;
86 	}
87 	return (facs);
88 }
89