xref: /freebsd/usr.sbin/boottrace/boottrace.c (revision 4e8d558c)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2022 NetApp, Inc.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #include <sys/types.h>
29 #include <sys/boottrace.h>
30 #include <sys/sysctl.h>
31 #include <sys/wait.h>
32 
33 #include <err.h>
34 #include <errno.h>
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <unistd.h>
39 
40 static void
41 usage(void)
42 {
43 	fprintf(stderr, "usage: boottrace utility [argument ...]\n");
44 	exit(1);
45 }
46 
47 int
48 main(int argc, char **argv)
49 {
50 	pid_t pid;
51 	int status;
52 
53 	if (argc < 2)
54 		usage();
55 	argv++;
56 
57 	BOOTTRACE("%s start", *argv);
58 	pid = fork();
59 	if (pid == -1) {
60 		exit(1);
61 	} else if (pid == 0) {
62 		execvp(*argv, argv);
63 		err(errno == ENOENT ? 127 : 126, "execvp %s", *argv);
64 	}
65 	waitpid(pid, &status, 0);
66 	if (!WIFEXITED(status))
67 		warnx("command terminated abnormally");
68 	BOOTTRACE("%s done", *argv);
69 
70 	return (WIFEXITED(status) ? WEXITSTATUS(status) : EXIT_FAILURE);
71 }
72