xref: /openbsd-src/usr.bin/ktrace/subr.c (revision 5a38ef86d0b61900239c7913d24a05e7b88a58f0)
1 /*	$OpenBSD: subr.c,v 1.15 2021/09/01 15:54:40 deraadt 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/signal.h>
36 #include <sys/ktrace.h>
37 
38 #include "ktrace.h"
39 #include "extern.h"
40 
41 /*
42  * If you change the trace point letters, then update to match:
43  * ktrace/ktrace.1, ktrace/ltrace.1, kdump/kdump.1, and
44  * usage() in kdump/kdump.c
45  */
46 int
47 getpoints(const char *s, int defpoints)
48 {
49 	int facs = 0;
50 
51 	while (*s) {
52 		switch(*s) {
53 		case 'c':
54 			facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET;
55 			break;
56 		case 'i':
57 			facs |= KTRFAC_GENIO;
58 			break;
59 		case 'n':
60 			facs |= KTRFAC_NAMEI;
61 			break;
62 		case 'p':
63 			facs |= KTRFAC_PLEDGE;
64 			break;
65 		case 's':
66 			facs |= KTRFAC_PSIG;
67 			break;
68 		case 't':
69 			facs |= KTRFAC_STRUCT;
70 			break;
71 		case 'u':
72 			facs |= KTRFAC_USER;
73 			break;
74 		case 'x':
75 			facs |= KTRFAC_EXECARGS;
76 			break;
77 		case 'X':
78 			facs |= KTRFAC_EXECENV;
79 			break;
80 		case '+':
81 			facs |= defpoints;
82 			break;
83 		default:
84 			return (-1);
85 		}
86 		s++;
87 	}
88 	return (facs);
89 }
90