ktrace.c (c115df18cd0d5b01a18af0c608bc8b519b62273b) ktrace.c (9bedbe6c7dcc2578c7c8f1327d0005adf50258f8)
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

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37 The Regents of the University of California. All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41#if 0
42static char sccsid[] = "@(#)ktrace.c 8.1 (Berkeley) 6/6/93";
43#endif
44static const char rcsid[] =
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

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37 The Regents of the University of California. All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41#if 0
42static char sccsid[] = "@(#)ktrace.c 8.1 (Berkeley) 6/6/93";
43#endif
44static const char rcsid[] =
45 "$Id$";
45 "$Id: ktrace.c,v 1.8 1997/02/22 19:55:27 peter Exp $";
46#endif /* not lint */
47
48#include <sys/param.h>
49#include <sys/stat.h>
50#include <sys/file.h>
51#include <sys/time.h>
52#include <sys/errno.h>
53#include <sys/uio.h>

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67 char **argv;
68{
69 extern int optind;
70 extern char *optarg;
71 enum { NOTSET, CLEAR, CLEARALL } clear;
72 int append, ch, fd, inherit, ops, pid, pidset, trpoints;
73 char *tracefile;
74 mode_t omask;
46#endif /* not lint */
47
48#include <sys/param.h>
49#include <sys/stat.h>
50#include <sys/file.h>
51#include <sys/time.h>
52#include <sys/errno.h>
53#include <sys/uio.h>

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67 char **argv;
68{
69 extern int optind;
70 extern char *optarg;
71 enum { NOTSET, CLEAR, CLEARALL } clear;
72 int append, ch, fd, inherit, ops, pid, pidset, trpoints;
73 char *tracefile;
74 mode_t omask;
75 struct stat sb;
75
76 clear = NOTSET;
77 append = ops = pidset = inherit = 0;
78 trpoints = DEF_POINTS;
79 tracefile = DEF_TRACEFILE;
80 while ((ch = getopt(argc,argv,"aCcdf:g:ip:t:")) != EOF)
81 switch((char)ch) {
82 case 'a':

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135 ops |= pid ? KTROP_CLEAR : KTROP_CLEARFILE;
136
137 if (ktrace(tracefile, ops, trpoints, pid) < 0)
138 err(1, tracefile);
139 exit(0);
140 }
141
142 omask = umask(S_IRWXG|S_IRWXO);
76
77 clear = NOTSET;
78 append = ops = pidset = inherit = 0;
79 trpoints = DEF_POINTS;
80 tracefile = DEF_TRACEFILE;
81 while ((ch = getopt(argc,argv,"aCcdf:g:ip:t:")) != EOF)
82 switch((char)ch) {
83 case 'a':

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136 ops |= pid ? KTROP_CLEAR : KTROP_CLEARFILE;
137
138 if (ktrace(tracefile, ops, trpoints, pid) < 0)
139 err(1, tracefile);
140 exit(0);
141 }
142
143 omask = umask(S_IRWXG|S_IRWXO);
143 if ((fd = open(tracefile, O_CREAT | O_WRONLY | (append ? 0 : O_TRUNC),
144 DEFFILEMODE)) < 0)
145 err(1, tracefile);
144 if (append) {
145 if ((fd = open(tracefile, O_CREAT | O_WRONLY, DEFFILEMODE)) < 0)
146 err(1, tracefile);
147 if (fstat(fd, &sb) != 0 || sb.st_uid != getuid())
148 errx(1, "Refuse to append to %s not owned by you.",
149 tracefile);
150 } else {
151 if (unlink(tracefile) == -1 && errno != ENOENT)
152 err(1, "unlink %s", tracefile);
153 if ((fd = open(tracefile, O_CREAT | O_EXCL | O_WRONLY,
154 DEFFILEMODE)) < 0)
155 err(1, tracefile);
156 }
146 (void)umask(omask);
147 (void)close(fd);
148
149 if (*argv) {
150 if (ktrace(tracefile, ops, trpoints, getpid()) < 0)
151 err(1, tracefile);
152 execvp(argv[0], &argv[0]);
153 err(1, "exec of '%s' failed", argv[0]);

--- 38 unchanged lines hidden --- 		157 (void)umask(omask);
158 (void)close(fd);
159
160 if (*argv) {
161 if (ktrace(tracefile, ops, trpoints, getpid()) < 0)
162 err(1, tracefile);
163 execvp(argv[0], &argv[0]);
164 err(1, "exec of '%s' failed", argv[0]);

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