Imported Upstream version 8.17upstream/8.17

1 files changed, 36 insertions, 0 deletions

diff --git a/lib/memcmp2.c b/lib/memcmp2.c
new file mode 100644
index 00000000..e10a709d
--- /dev/null
+++ b/lib/memcmp2.c
@@ -0,0 +1,36 @@
+/* Compare two memory areas with possibly different lengths.
+   Copyright (C) 2009-2012 Free Software Foundation, Inc.
+
+   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 3 of the License, 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, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "memcmp2.h"
+
+#include <string.h>
+
+int
+memcmp2 (const char *s1, size_t n1, const char *s2, size_t n2)
+{
+  int cmp = memcmp (s1, s2, n1 <= n2 ? n1 : n2);
+  if (cmp == 0)
+    {
+      if (n1 < n2)
+        cmp = -1;
+      else if (n1 > n2)
+        cmp = 1;
+    }
+  return cmp;
+}