xref: /openbsd-src/usr.bin/arch/arch.c (revision d13be5d47e4149db2549a9828e244d59dbc43f15)
1 /*
2  * Copyright (c) 1994 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
3  * 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
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  *
14  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
15  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
16  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
17  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
21  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
22  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
23  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #include <sys/param.h>
27 
28 #include <err.h>
29 #include <locale.h>
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <unistd.h>
34 
35 static void usage(void);
36 
37 static int machine;
38 
39 int
40 main(int argc, char *argv[])
41 {
42 	extern char *__progname;
43 	int short_form = 0, c;
44 	char *arch, *opts;
45 
46 	setlocale(LC_ALL, "");
47 
48 	machine = strcmp(__progname, "machine") == 0;
49 	if (machine) {
50 		arch = MACHINE;
51 		opts = "a";
52 		short_form++;
53 	} else {
54 		arch = MACHINE_ARCH;
55 		opts = "ks";
56 	}
57 	while ((c = getopt(argc, argv, opts)) != -1)
58 		switch (c) {
59 		case 'a':
60 			arch = MACHINE_ARCH;
61 			break;
62 		case 'k':
63 			arch = MACHINE;
64 			break;
65 		case 's':
66 			short_form++;
67 			break;
68 		default:
69 			usage();
70 			/* NOTREACHED */
71 		}
72 	if (optind != argc) {
73 		usage();
74 		/* NOTREACHED */
75 	}
76 	if (!short_form) {
77 		fputs("OpenBSD", stdout);
78 		fputc('.', stdout);
79 	}
80 	fputs(arch, stdout);
81 	fputc('\n', stdout);
82 	exit(0);
83 }
84 
85 static void
86 usage(void)
87 {
88 	if (machine)
89 		fprintf(stderr, "usage: machine [-a]\n");
90 	else
91 		fprintf(stderr, "usage: arch [-ks]\n");
92 	exit(1);
93 }
94