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65a4daeaf3
Two new events KTR_ARGS and KTR_ENV can be used to trace arguments of execve(2). Reviewed by: glebius Differential Revision: https://reviews.freebsd.org/D47127
129 lines
3.1 KiB
C
129 lines
3.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/file.h>
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#include <sys/proc.h>
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#include <sys/time.h>
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#include <sys/uio.h>
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#include <sys/ktrace.h>
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#include <stdio.h>
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#include "ktrace.h"
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void timevaladd(struct timeval *, struct timeval *);
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void timevalsub(struct timeval *, struct timeval *);
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void timevalfix(struct timeval *);
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int
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getpoints(char *s)
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{
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int facs = 0;
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while (*s) {
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switch(*s) {
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case 'c':
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facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET;
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break;
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case 'i':
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facs |= KTRFAC_GENIO;
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break;
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case 'f':
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facs |= KTRFAC_FAULT | KTRFAC_FAULTEND;
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break;
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case 'n':
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facs |= KTRFAC_NAMEI;
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break;
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case 'p':
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facs |= KTRFAC_CAPFAIL;
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break;
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case 's':
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facs |= KTRFAC_PSIG;
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break;
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case 't':
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facs |= KTRFAC_STRUCT;
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break;
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case 'u':
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facs |= KTRFAC_USER;
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break;
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case 'w':
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facs |= KTRFAC_CSW;
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break;
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case 'y':
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facs |= KTRFAC_SYSCTL;
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break;
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case 'a':
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facs |= KTRFAC_ARGS;
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break;
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case 'e':
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facs |= KTRFAC_ENVS;
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break;
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case '+':
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facs |= DEF_POINTS;
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break;
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default:
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return (-1);
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}
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s++;
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}
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return (facs);
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}
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void
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timevaladd(struct timeval *t1, struct timeval *t2)
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{
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t1->tv_sec += t2->tv_sec;
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t1->tv_usec += t2->tv_usec;
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timevalfix(t1);
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}
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void
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timevalsub(struct timeval *t1, struct timeval *t2)
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{
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t1->tv_sec -= t2->tv_sec;
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t1->tv_usec -= t2->tv_usec;
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timevalfix(t1);
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}
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void
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timevalfix(struct timeval *t1)
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{
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if (t1->tv_usec < 0) {
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t1->tv_sec--;
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t1->tv_usec += 1000000;
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}
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if (t1->tv_usec >= 1000000) {
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t1->tv_sec++;
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t1->tv_usec -= 1000000;
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}
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}
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