Annotation of src/usr.bin/logname/logname.c, Revision 1.7
1.7 ! deraadt 1: /* $OpenBSD: logname.c,v 1.6 2003/06/10 22:20:47 deraadt Exp $ */
1.1 deraadt 2: /* $NetBSD: logname.c,v 1.6 1994/12/22 06:39:32 jtc Exp $ */
3:
4: /*-
5: * Copyright (c) 1991, 1993, 1994
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.5 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: #include <stdio.h>
34: #include <stdlib.h>
35: #include <locale.h>
36: #include <unistd.h>
37: #include <err.h>
38:
1.4 millert 39: void usage(void);
1.1 deraadt 40:
41: int
1.6 deraadt 42: main(int argc, char *argv[])
1.1 deraadt 43: {
44: int ch;
45: char *p;
46:
47: setlocale(LC_ALL, "");
48:
1.3 millert 49: while ((ch = getopt(argc, argv, "")) != -1)
1.1 deraadt 50: switch (ch) {
51: case '?':
52: default:
53: usage();
54: /* NOTREACHED */
55: }
56:
57: if (argc != optind) {
58: usage();
59: /* NOTREACHED */
60: }
61:
62: if ((p = getlogin()) == NULL)
63: err(1, NULL);
64: (void)printf("%s\n", p);
65: exit(0);
66: }
67:
68: void
1.6 deraadt 69: usage(void)
1.1 deraadt 70: {
71: (void)fprintf(stderr, "usage: logname\n");
72: exit(1);
73: }