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 * 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. 32 */ 33 34 #ifndef lint 35 #if 0 36 static char sccsid[] = "@(#)subr.c 8.1 (Berkeley) 6/6/93"; 37 #endif 38 static const char rcsid[] = 39 "$FreeBSD: src/usr.bin/ktrace/subr.c,v 1.6 1999/08/28 01:02:34 peter Exp $"; 40 #endif /* not lint */ 41 42 #include <sys/param.h> 43 #include <sys/file.h> 44 #include <sys/user.h> 45 #include <sys/proc.h> 46 #include <sys/time.h> 47 #include <sys/ktrace.h> 48 49 #include <stdio.h> 50 51 #include "ktrace.h" 52 53 getpoints(s) 54 char *s; 55 { 56 int facs = 0; 57 58 while (*s) { 59 switch(*s) { 60 case 'c': 61 facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET; 62 break; 63 case 'n': 64 facs |= KTRFAC_NAMEI; 65 break; 66 case 'i': 67 facs |= KTRFAC_GENIO; 68 break; 69 case 's': 70 facs |= KTRFAC_PSIG; 71 break; 72 case 'u': 73 facs |= KTRFAC_USER; 74 break; 75 case 'w': 76 facs |= KTRFAC_CSW; 77 break; 78 case '+': 79 facs |= DEF_POINTS; 80 break; 81 default: 82 return (-1); 83 } 84 s++; 85 } 86 return (facs); 87 } 88 89 timevaladd(t1, t2) 90 struct timeval *t1, *t2; 91 { 92 t1->tv_sec += t2->tv_sec; 93 t1->tv_usec += t2->tv_usec; 94 timevalfix(t1); 95 } 96 97 timevalsub(t1, t2) 98 struct timeval *t1, *t2; 99 { 100 t1->tv_sec -= t2->tv_sec; 101 t1->tv_usec -= t2->tv_usec; 102 timevalfix(t1); 103 } 104 105 timevalfix(t1) 106 struct timeval *t1; 107 { 108 if (t1->tv_usec < 0) { 109 t1->tv_sec--; 110 t1->tv_usec += 1000000; 111 } 112 if (t1->tv_usec >= 1000000) { 113 t1->tv_sec++; 114 t1->tv_usec -= 1000000; 115 } 116 } 117