1 files changed, 47 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/posix/cuserid.c b/REORG.TODO/sysdeps/posix/cuserid.c
new file mode 100644
index 0000000000..bee9734793
--- /dev/null
+++ b/REORG.TODO/sysdeps/posix/cuserid.c
@@ -0,0 +1,47 @@
+/* Copyright (C) 1991-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <pwd.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+/* Return the username of the caller.
+   If S is not NULL, it points to a buffer of at least L_cuserid bytes
+   into which the name is copied; otherwise, a static buffer is used.  */
+char *
+cuserid (char *s)
+{
+  static char name[L_cuserid];
+  char buf[NSS_BUFLEN_PASSWD];
+  struct passwd pwent;
+  struct passwd *pwptr;
+
+  if (__getpwuid_r (__geteuid (), &pwent, buf, sizeof (buf), &pwptr)
+      || pwptr == NULL)
+    {
+      if (s != NULL)
+	s[0] = '\0';
+      return s;
+    }
+
+  if (s == NULL)
+    s = name;
+  s[L_cuserid - 1] = '\0';
+  return strncpy (s, pwptr->pw_name, L_cuserid - 1);
+}