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authorAndreas Rottmann <a.rottmann@gmx.at>2009-09-14 12:32:44 +0200
committerAndreas Rottmann <a.rottmann@gmx.at>2009-09-14 12:32:44 +0200
commitfa095a4504cbe668e4244547e2c141597bea4ecf (patch)
tree06135820a286ffec47804e75fbf8a147e92acd2e /lib/memcmp2.c
Imported Upstream version 0.9.1upstream/0.9.1
Diffstat (limited to 'lib/memcmp2.c')
-rw-r--r--lib/memcmp2.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/memcmp2.c b/lib/memcmp2.c
new file mode 100644
index 00000000..7f8f6049
--- /dev/null
+++ b/lib/memcmp2.c
@@ -0,0 +1,36 @@
+/* Compare two memory areas with possibly different lengths.
+ Copyright (C) 2009 Free Software Foundation, Inc.
+
+ This program 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 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser 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;
+}