* Copyright (c) 1988 The Regents of the University of California.
* All rights reserved.
*
- * Redistribution and use in source and binary forms are permitted provided
- * that: (1) source distributions retain this entire copyright notice and
- * comment, and (2) distributions including binaries display the following
- * acknowledgement: ``This product includes software developed by the
- * University of California, Berkeley and its contributors'' in the
- * documentation or other materials provided with the distribution and in
- * all advertising materials mentioning features or use of this software.
- * 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * 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
#endif /* not lint */
#ifndef lint
-static char sccsid[] = "@(#)ktrace.c 1.5 (Berkeley) 6/29/90";
+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"
-#define USAGE \
- "usage: ktrace [-acid] [-f trfile] [-t trpoints] [-p pid] [-g pgid]\n\
- trops: c = syscalls, n = namei, g = generic-i/o, a = everything\n\
- ktrace -C (clear everthing)\n"
-
-
-char *tracefile = DEF_TRACEFILE;
-int append, clear, descend, inherit;
-
main(argc, argv)
- char *argv[];
+ int argc;
+ char **argv;
{
extern int optind;
extern char *optarg;
- int trpoints = ALL_POINTS;
- int ops = 0;
- int pid = 0;
- int ch;
+ enum { NOTSET, CLEAR, CLEARALL } clear;
+ int append, ch, fd, inherit, ops, pid, pidset, trpoints;
+ char *tracefile;
- while ((ch = getopt(argc,argv,"Cacdp:g:if:t:")) != EOF)
+ 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 = 2;
+ clear = CLEARALL;
+ pidset = 1;
break;
case 'c':
- clear = 1;
+ clear = CLEAR;
break;
case 'd':
ops |= KTRFLAG_DESCEND;
break;
- case 't':
- trpoints = getpoints(optarg);
- if (trpoints < 0) {
- fprintf(stderr,
- "ktrace: unknown facility in %s\n",
- optarg);
- exit(1);
- }
- break;
- case 'p':
- pid = atoi(optarg);
+ case 'f':
+ tracefile = optarg;
break;
case 'g':
- pid = -atoi(optarg);
+ pid = -rpid(optarg);
+ pidset = 1;
break;
case 'i':
- inherit++;
+ inherit = 1;
break;
- case 'f':
- tracefile = optarg;
+ case 'p':
+ pid = rpid(optarg);
+ pidset = 1;
break;
- case 'a':
- append++;
+ case 't':
+ trpoints = getpoints(optarg);
+ if (trpoints < 0) {
+ (void)fprintf(stderr,
+ "ktrace: unknown facility in %s\n", optarg);
+ usage();
+ }
break;
default:
- fprintf(stderr,"usage: \n",*argv);
- exit(-1);
+ usage();
}
- argv += optind, argc -= optind;
+ argv += optind;
+ argc -= optind;
+ if (pidset && *argv || !pidset && !*argv)
+ usage();
+
if (inherit)
trpoints |= KTRFAC_INHERIT;
- if (clear) { /* untrace something */
- if (clear == 2) { /* -C */
+
+ if (clear != NOTSET) {
+ if (clear == CLEARALL) {
ops = KTROP_CLEAR | KTRFLAG_DESCEND;
pid = 1;
- } else {
+ } else
ops |= pid ? KTROP_CLEAR : KTROP_CLEARFILE;
- }
- if (ktrace(tracefile, ops, trpoints, pid) < 0) {
- perror("ktrace");
- exit(1);
- }
+
+ if (ktrace(tracefile, ops, trpoints, pid) < 0)
+ error(tracefile);
exit(0);
}
- if (pid == 0 && !*argv) { /* nothing to trace */
- fprintf(stderr, USAGE);
- exit(1);
- }
-
- close(open(tracefile, O_WRONLY | O_CREAT, 0666));
- if (!append)
- close(open(tracefile, O_WRONLY | O_TRUNC));
- if (!*argv) {
- if (ktrace(tracefile, ops, trpoints, pid) < 0) {
- perror("ktrace");
- exit(1);
- }
- } else {
- pid = getpid();
- if (ktrace(tracefile, ops, trpoints, pid) < 0) {
- perror("ktrace");
- exit(1);
- }
+ 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]);
- perror("ktrace: exec failed");
+ 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);
+}