2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
35 static char copyright[] =
36 "@(#) Copyright (c) 1988, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
42 static char sccsid[] = "@(#)ktrace.c 8.1 (Berkeley) 6/6/93";
44 static const char rcsid[] =
45 "$Id: ktrace.c,v 1.10 1997/03/29 04:30:16 imp Exp $";
48 #include <sys/param.h>
52 #include <sys/errno.h>
54 #include <sys/ktrace.h>
62 void no_ktrace __P((int));
63 void usage __P((void));
71 enum { NOTSET, CLEAR, CLEARALL } clear;
72 int append, ch, fd, inherit, ops, pid, pidset, trpoints;
78 append = ops = pidset = inherit = 0;
79 trpoints = DEF_POINTS;
80 tracefile = DEF_TRACEFILE;
81 while ((ch = getopt(argc,argv,"aCcdf:g:ip:t:")) != -1)
94 ops |= KTRFLAG_DESCEND;
111 trpoints = getpoints(optarg);
113 warnx("unknown facility in %s", optarg);
123 if (pidset && *argv || !pidset && !*argv)
127 trpoints |= KTRFAC_INHERIT;
129 (void)signal(SIGSYS, no_ktrace);
130 if (clear != NOTSET) {
131 if (clear == CLEARALL) {
132 ops = KTROP_CLEAR | KTRFLAG_DESCEND;
133 trpoints = ALL_POINTS;
136 ops |= pid ? KTROP_CLEAR : KTROP_CLEARFILE;
138 if (ktrace(tracefile, ops, trpoints, pid) < 0)
143 omask = umask(S_IRWXG|S_IRWXO);
145 if ((fd = open(tracefile, O_CREAT | O_WRONLY, DEFFILEMODE)) < 0)
147 if (fstat(fd, &sb) != 0 || sb.st_uid != getuid())
148 errx(1, "Refuse to append to %s not owned by you.",
151 if (unlink(tracefile) == -1 && errno != ENOENT)
152 err(1, "unlink %s", tracefile);
153 if ((fd = open(tracefile, O_CREAT | O_EXCL | O_WRONLY,
161 if (ktrace(tracefile, ops, trpoints, getpid()) < 0)
163 execvp(argv[0], &argv[0]);
164 err(1, "exec of '%s' failed", argv[0]);
166 else if (ktrace(tracefile, ops, trpoints, pid) < 0)
177 warnx("only one -g or -p flag is permitted.");
181 warnx("illegal process id.");
190 (void)fprintf(stderr, "%s\n%s\n",
191 "usage: ktrace [-aCcid] [-f trfile] [-g pgid] [-p pid] [-t [cnisuv]",
192 " ktrace [-aCcid] [-f trfile] [-t [cnisuw] command");
200 (void)fprintf(stderr,
201 "error:\tktrace() system call not supported in the running kernel\n\tre-compile kernel with 'options KTRACE'\n");