* lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:

[bison.git] / lib / strndup.c

diff --git a/lib/strndup.c b/lib/strndup.c
new file mode 100644 (file)
index 0000000..136e51c
--- /dev/null
+++ b/lib/strndup.c
@@ -0,0 +1,62 @@
+/* Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
+
+   NOTE: The canonical source of this file is maintained with the GNU C Library.
+   Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option) any
+   later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+
+#if defined _LIBC || defined STDC_HEADERS
+# include <stdlib.h>
+# include <string.h>
+#else
+char *malloc ();
+#endif
+
+#ifndef HAVE_DECL_STRNLEN
+"this configure-time declaration test was not run"
+#endif
+#if !HAVE_DECL_STRNLEN
+size_t strnlen ();
+#endif
+
+#undef __strndup
+#undef strndup
+
+#ifndef weak_alias
+# define __strndup strndup
+#endif
+
+char *
+__strndup (const char *s, size_t n)
+{
+  size_t len = strnlen (s, n);
+  char *new = malloc (len + 1);
+
+  if (new == NULL)
+    return NULL;
+
+  new[len] = '\0';
+  return (char *) memcpy (new, s, len);
+}
+#ifdef weak_alias
+weak_alias (__strndup, strndup)
+#endif