BSD 4_3_Net_2 release
[unix-history] / usr / src / usr.bin / ktrace / ktrace / subr.c
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1/*-
2 * Copyright (c) 1988 The Regents of the University of California.
3 * All rights reserved.
4 *
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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 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
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32 */
33
34#ifndef lint
af359dea 35static char sccsid[] = "@(#)subr.c 5.1 (Berkeley) 1/17/91";
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36#endif /* not lint */
37
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38#include <sys/param.h>
39#include <sys/file.h>
40#include <sys/user.h>
41#include <sys/proc.h>
1c15e888 42#include <sys/time.h>
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43#include <sys/ktrace.h>
44#include <stdio.h>
45#include "ktrace.h"
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46
47getpoints(s)
48 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 'n':
58 facs |= KTRFAC_NAMEI;
59 break;
60 case 'i':
61 facs |= KTRFAC_GENIO;
62 break;
63 case 's':
64 facs |= KTRFAC_PSIG;
65 break;
66 default:
67 return (-1);
68 }
69 s++;
70 }
71 return (facs);
72}
73
74timevaladd(t1, t2)
75 struct timeval *t1, *t2;
76{
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77 t1->tv_sec += t2->tv_sec;
78 t1->tv_usec += t2->tv_usec;
79 timevalfix(t1);
80}
81
82timevalsub(t1, t2)
83 struct timeval *t1, *t2;
84{
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85 t1->tv_sec -= t2->tv_sec;
86 t1->tv_usec -= t2->tv_usec;
87 timevalfix(t1);
88}
89
90timevalfix(t1)
91 struct timeval *t1;
92{
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93 if (t1->tv_usec < 0) {
94 t1->tv_sec--;
95 t1->tv_usec += 1000000;
96 }
97 if (t1->tv_usec >= 1000000) {
98 t1->tv_sec++;
99 t1->tv_usec -= 1000000;
100 }
101}