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
32 static 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
50 void timevaladd(struct timeval *, struct timeval *);
51 void timevalsub(struct timeval *, struct timeval *);
52 void timevalfix(struct timeval *);
53
54 int
getpoints(char * s)55 getpoints(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
102 void
timevaladd(struct timeval * t1,struct timeval * t2)103 timevaladd(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
110 void
timevalsub(struct timeval * t1,struct timeval * t2)111 timevalsub(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
118 void
timevalfix(struct timeval * t1)119 timevalfix(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