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authorCameron Katri <me@cameronkatri.com>2021-05-09 14:20:58 -0400
committerCameron Katri <me@cameronkatri.com>2021-05-09 14:20:58 -0400
commit5fd83771641d15c418f747bd343ba6738d3875f7 (patch)
tree5abf0f78f680d9837dbd93d4d4c3933bb7509599 /shell_cmds/logname/logname.c
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Diffstat (limited to 'shell_cmds/logname/logname.c')
-rw-r--r--shell_cmds/logname/logname.c92
1 files changed, 92 insertions, 0 deletions
diff --git a/shell_cmds/logname/logname.c b/shell_cmds/logname/logname.c
new file mode 100644
index 0000000..ed63ffe
--- /dev/null
+++ b/shell_cmds/logname/logname.c
@@ -0,0 +1,92 @@
+/* $NetBSD: logname.c,v 1.7 1997/10/19 04:20:06 lukem Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1991, 1993, 1994\n\
+ The Regents of the University of California. All rights reserved.\n");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)logname.c 8.2 (Berkeley) 4/3/94";
+#endif
+__RCSID("$NetBSD: logname.c,v 1.7 1997/10/19 04:20:06 lukem Exp $");
+#endif /* not lint */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <locale.h>
+#include <unistd.h>
+#include <err.h>
+
+int main __P((int, char **));
+void usage __P((void));
+
+int
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ int ch;
+ char *p;
+
+ setlocale(LC_ALL, "");
+
+ while ((ch = getopt(argc, argv, "")) != -1)
+ switch (ch) {
+ case '?':
+ default:
+ usage();
+ /* NOTREACHED */
+ }
+
+ if (argc != optind) {
+ usage();
+ /* NOTREACHED */
+ }
+
+ if ((p = getlogin()) == NULL)
+ err(1, "getlogin");
+ (void)printf("%s\n", p);
+ exit(0);
+}
+
+void
+usage()
+{
+ (void)fprintf(stderr, "usage: logname\n");
+ exit(1);
+}