+/*-
+ * Copyright (c) 1988 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1988 The Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)ktrace.c 5.2 (Berkeley) 3/5/91";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/file.h>
+#include <sys/time.h>
+#include <sys/errno.h>
+#include <sys/uio.h>
+#include <sys/ktrace.h>
+#include <stdio.h>
+#include "ktrace.h"
+
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ extern int optind;
+ extern char *optarg;
+ enum { NOTSET, CLEAR, CLEARALL } clear;
+ int append, ch, fd, inherit, ops, pid, pidset, trpoints;
+ char *tracefile;
+
+ clear = NOTSET;
+ append = ops = pidset = 0;
+ trpoints = ALL_POINTS;
+ tracefile = DEF_TRACEFILE;
+ while ((ch = getopt(argc,argv,"aCcdf:g:ip:t:")) != EOF)
+ switch((char)ch) {
+ case 'a':
+ append = 1;
+ break;
+ case 'C':
+ clear = CLEARALL;
+ pidset = 1;
+ break;
+ case 'c':
+ clear = CLEAR;
+ break;
+ case 'd':
+ ops |= KTRFLAG_DESCEND;
+ break;
+ case 'f':
+ tracefile = optarg;
+ break;
+ case 'g':
+ pid = -rpid(optarg);
+ pidset = 1;
+ break;
+ case 'i':
+ inherit = 1;
+ break;
+ case 'p':
+ pid = rpid(optarg);
+ pidset = 1;
+ break;
+ case 't':
+ trpoints = getpoints(optarg);
+ if (trpoints < 0) {
+ (void)fprintf(stderr,
+ "ktrace: unknown facility in %s\n", optarg);
+ usage();
+ }
+ break;
+ default:
+ usage();
+ }
+ argv += optind;
+ argc -= optind;
+
+ if (pidset && *argv || !pidset && !*argv)
+ usage();
+
+ if (inherit)
+ trpoints |= KTRFAC_INHERIT;
+
+ if (clear != NOTSET) {
+ if (clear == CLEARALL) {
+ ops = KTROP_CLEAR | KTRFLAG_DESCEND;
+ pid = 1;
+ } else
+ ops |= pid ? KTROP_CLEAR : KTROP_CLEARFILE;
+
+ if (ktrace(tracefile, ops, trpoints, pid) < 0)
+ error(tracefile);
+ exit(0);
+ }
+
+ if ((fd = open(tracefile, O_CREAT | O_WRONLY | (append ? 0 : O_TRUNC),
+ DEFFILEMODE)) < 0)
+ error(tracefile);
+ (void)close(fd);
+
+ if (*argv) {
+ if (ktrace(tracefile, ops, trpoints, getpid()) < 0)
+ error();
+ execvp(argv[0], &argv[0]);
+ error(argv[0]);
+ exit(1);
+ }
+ else if (ktrace(tracefile, ops, trpoints, pid) < 0)
+ error(tracefile);
+ exit(0);
+}
+
+rpid(p)
+ char *p;
+{
+ static int first;
+
+ if (first++) {
+ (void)fprintf(stderr,
+ "ktrace: only one -g or -p flag is permitted.\n");
+ usage();
+ }
+ if (!*p) {
+ (void)fprintf(stderr, "ktrace: illegal process id.\n");
+ usage();
+ }
+ return(atoi(p));
+}
+
+error(name)
+ char *name;
+{
+ (void)fprintf(stderr, "ktrace: %s: %s.\n", name, strerror(errno));
+ exit(1);
+}
+
+usage()
+{
+ (void)fprintf(stderr,
+"usage:\tktrace [-aCcid] [-f trfile] [-g pgid] [-p pid] [-t [acgn]\n\tktrace [-aCcid] [-f trfile] [-t [acgn] command\n");
+ exit(1);
+}
projects / unix-history / commitdiff