Imported Upstream version 93u+upstream

1 files changed, 78 insertions, 0 deletions

diff --git a/src/lib/libcmd/logname.c b/src/lib/libcmd/logname.c
new file mode 100644
index 0000000..5dce0e2
--- /dev/null
+++ b/src/lib/libcmd/logname.c
@@ -0,0 +1,78 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1992-2012 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                 Glenn Fowler <gsf@research.att.com>                  *
+*                  David Korn <dgk@research.att.com>                   *
+*                                                                      *
+***********************************************************************/
+#pragma prototyped
+/*
+ * David Korn
+ * AT&T Research
+ *
+ * logname
+ */
+
+static const char usage[] =
+"[-?\n@(#)$Id: logname (AT&T Research) 1999-04-30 $\n]"
+USAGE_LICENSE
+"[+NAME?logname - return the user's login name]"
+"[+DESCRIPTION?\blogname\b writes the users's login name to standard "
+	"output.  The login name is the string that is returned by the "
+	"\bgetlogin\b(2) function.  If \bgetlogin\b(2) does not return "
+	"successfully, the corresponding to the real user id of the calling "
+	"process is used instead.]"
+
+"\n"
+"\n\n"
+"\n"
+"[+EXIT STATUS?]{"
+        "[+0?Successful Completion.]"
+        "[+>0?An error occurred.]"
+"}"
+"[+SEE ALSO?\bgetlogin\b(2)]"
+;
+
+
+#include <cmd.h>
+
+int
+b_logname(int argc, char** argv, Shbltin_t* context)
+{
+	register char*	logname;
+
+	cmdinit(argc, argv, context, ERROR_CATALOG, 0);
+	for (;;)
+	{
+		switch (optget(argv, usage))
+		{
+		case ':':
+			error(2, "%s", opt_info.arg);
+			continue;
+		case '?':
+			error(ERROR_usage(2), "%s", opt_info.arg);
+			continue;
+		}
+		break;
+	}
+	if (error_info.errors)
+		error(ERROR_usage(2), "%s", optusage(NiL));
+	if (!(logname = getlogin()))
+		logname = fmtuid(getuid());
+	sfputr(sfstdout, logname, '\n');
+	return 0;
+}
+