1/*-
2 * Copyright (c) 1988, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#if 0
31#ifndef lint
32static char sccsid[] = "@(#)subr.c	8.1 (Berkeley) 6/6/93";
33#endif /* not lint */
34#endif
35
36#include <sys/cdefs.h>
37__FBSDID("$FreeBSD$");
38
39#include <sys/param.h>
40#include <sys/file.h>
41#include <sys/proc.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
50void timevaladd(struct timeval *, struct timeval *);
51void timevalsub(struct timeval *, struct timeval *);
52void timevalfix(struct timeval *);
53
54int
55getpoints(char *s)
56{
57	int facs = 0;
58
59	while (*s) {
60		switch(*s) {
61		case 'c':
62			facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET;
63			break;
64		case 'i':
65			facs |= KTRFAC_GENIO;
66			break;
67		case 'f':
68			facs |= KTRFAC_FAULT | KTRFAC_FAULTEND;
69			break;
70		case 'n':
71			facs |= KTRFAC_NAMEI;
72			break;
73		case 'p':
74			facs |= KTRFAC_CAPFAIL;
75			break;
76		case 's':
77			facs |= KTRFAC_PSIG;
78			break;
79		case 't':
80			facs |= KTRFAC_STRUCT;
81			break;
82		case 'u':
83			facs |= KTRFAC_USER;
84			break;
85		case 'w':
86			facs |= KTRFAC_CSW;
87			break;
88		case 'y':
89			facs |= KTRFAC_SYSCTL;
90			break;
91		case '+':
92			facs |= DEF_POINTS;
93			break;
94		default:
95			return (-1);
96		}
97		s++;
98	}
99	return (facs);
100}
101
102void
103timevaladd(struct timeval *t1, struct timeval *t2)
104{
105	t1->tv_sec += t2->tv_sec;
106	t1->tv_usec += t2->tv_usec;
107	timevalfix(t1);
108}
109
110void
111timevalsub(struct timeval *t1, struct timeval *t2)
112{
113	t1->tv_sec -= t2->tv_sec;
114	t1->tv_usec -= t2->tv_usec;
115	timevalfix(t1);
116}
117
118void
119timevalfix(struct timeval *t1)
120{
121	if (t1->tv_usec < 0) {
122		t1->tv_sec--;
123		t1->tv_usec += 1000000;
124	}
125	if (t1->tv_usec >= 1000000) {
126		t1->tv_sec++;
127		t1->tv_usec -= 1000000;
128	}
129}
130