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-rw-r--r--string/strdup.c38
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diff --git a/string/strdup.c b/string/strdup.c
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+/* Copyright (C) 1991 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+/* Duplicate S, returning an identical malloc'd string.  */
+char *
+DEFUN(strdup, (s), CONST char *s)
+{
+  size_t len = strlen(s) + 1;
+  PTR new = malloc(len);
+
+  if (new == NULL)
+    return NULL;
+
+  memcpy(new, (PTR) s, len);
+
+  return (char *) new;
+}