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
43 void timevaladd(struct timeval *, struct timeval *);
44 void timevalsub(struct timeval *, struct timeval *);
45 void timevalfix(struct timeval *);
46
47 int
getpoints(char * s)48 getpoints(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
95 void
timevaladd(struct timeval * t1,struct timeval * t2)96 timevaladd(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
103 void
timevalsub(struct timeval * t1,struct timeval * t2)104 timevalsub(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
111 void
timevalfix(struct timeval * t1)112 timevalfix(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