From 3da7411f0a5433aa866d5421a7e799b66fc7ac58 Mon Sep 17 00:00:00 2001
From: s-p-k <mr.dwts@gmail.com>
Date: Fri, 18 Oct 2013 16:51:44 +0300
Subject: [PATCH] Add logname(1)

---
 Makefile  |  1 +
 TODO      |  2 --
 logname.1 |  9 +++++++++
 logname.c | 27 +++++++++++++++++++++++++++
 4 files changed, 37 insertions(+), 2 deletions(-)
 create mode 100644 logname.1
 create mode 100644 logname.c

diff --git a/Makefile b/Makefile
index 326cae8..f431b87 100644
--- a/Makefile
+++ b/Makefile
@@ -51,6 +51,7 @@ SRC = \
 	id.c       \
 	kill.c     \
 	ln.c       \
+	logname.c  \
 	ls.c       \
 	mc.c       \
 	md5sum.c   \
diff --git a/TODO b/TODO
index 3f7dc12..ef85d9a 100644
--- a/TODO
+++ b/TODO
@@ -14,8 +14,6 @@ unexpand [-a] [-t N] [file...]
 
 od/hd
 
-logname
-
 uuencode
 
 uudecode
diff --git a/logname.1 b/logname.1
new file mode 100644
index 0000000..6785e92
--- /dev/null
+++ b/logname.1
@@ -0,0 +1,9 @@
+.TH LOGNAME 1 sbase\-VERSION
+.SH NAME
+logname \- print user's login name.
+.SH SYNOPSIS
+.B logname
+.SH DESCRIPTION
+.B
+The logname utility writes the user's login name to standard output
+followed by a newline.
diff --git a/logname.c b/logname.c
new file mode 100644
index 0000000..b621a9f
--- /dev/null
+++ b/logname.c
@@ -0,0 +1,27 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <stdlib.h>
+#include "util.h"
+
+static void
+usage(void)
+{
+        eprintf("usage: %s\n", argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+	char *p;
+
+	ARGBEGIN {
+        default:
+		usage();
+	} ARGEND;
+
+	p = getenv("LOGNAME");
+	if (!p)
+		enprintf(EXIT_FAILURE, "no login name\n");
+	puts(p);
+	return EXIT_SUCCESS;
+}
-- 
1.8.4.1