1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
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/param.h>
33#include <sys/file.h>
34#include <sys/proc.h>
35#include <sys/time.h>
36#include <sys/uio.h>
37#include <sys/ktrace.h>
38
39#include <stdio.h>
40
41#include "ktrace.h"
42
43void timevaladd(struct timeval *, struct timeval *);
44void timevalsub(struct timeval *, struct timeval *);
45void timevalfix(struct timeval *);
46
47int
48getpoints(char *s)
49{
50	int facs = 0;
51
52	while (*s) {
53		switch(*s) {
54		case 'c':
55			facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET;
56			break;
57		case 'i':
58			facs |= KTRFAC_GENIO;
59			break;
60		case 'f':
61			facs |= KTRFAC_FAULT | KTRFAC_FAULTEND;
62			break;
63		case 'n':
64			facs |= KTRFAC_NAMEI;
65			break;
66		case 'p':
67			facs |= KTRFAC_CAPFAIL;
68			break;
69		case 's':
70			facs |= KTRFAC_PSIG;
71			break;
72		case 't':
73			facs |= KTRFAC_STRUCT;
74			break;
75		case 'u':
76			facs |= KTRFAC_USER;
77			break;
78		case 'w':
79			facs |= KTRFAC_CSW;
80			break;
81		case 'y':
82			facs |= KTRFAC_SYSCTL;
83			break;
84		case '+':
85			facs |= DEF_POINTS;
86			break;
87		default:
88			return (-1);
89		}
90		s++;
91	}
92	return (facs);
93}
94
95void
96timevaladd(struct timeval *t1, struct timeval *t2)
97{
98	t1->tv_sec += t2->tv_sec;
99	t1->tv_usec += t2->tv_usec;
100	timevalfix(t1);
101}
102
103void
104timevalsub(struct timeval *t1, struct timeval *t2)
105{
106	t1->tv_sec -= t2->tv_sec;
107	t1->tv_usec -= t2->tv_usec;
108	timevalfix(t1);
109}
110
111void
112timevalfix(struct timeval *t1)
113{
114	if (t1->tv_usec < 0) {
115		t1->tv_sec--;
116		t1->tv_usec += 1000000;
117	}
118	if (t1->tv_usec >= 1000000) {
119		t1->tv_sec++;
120		t1->tv_usec -= 1000000;
121	}
122}
123