summaryrefslogtreecommitdiff
path: root/storage/bdb/clib/memcmp.c
diff options
context:
space:
mode:
Diffstat (limited to 'storage/bdb/clib/memcmp.c')
-rw-r--r--storage/bdb/clib/memcmp.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/storage/bdb/clib/memcmp.c b/storage/bdb/clib/memcmp.c
new file mode 100644
index 00000000000..979badaef30
--- /dev/null
+++ b/storage/bdb/clib/memcmp.c
@@ -0,0 +1,67 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996-2002
+ * Sleepycat Software. All rights reserved.
+ */
+/*
+ * Copyright (c) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "db_config.h"
+
+#ifndef lint
+static const char revid[] = "$Id: memcmp.c,v 11.7 2002/01/11 15:51:28 bostic Exp $";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+#endif
+
+/*
+ * memcmp --
+ *
+ * PUBLIC: #ifndef HAVE_MEMCMP
+ * PUBLIC: int memcmp __P((const void *, const void *, size_t));
+ * PUBLIC: #endif
+ */
+int
+memcmp(s1, s2, n)
+ char *s1, *s2;
+ size_t n;
+{
+ if (n != 0) {
+ unsigned char *p1 = (unsigned char *)s1,
+ *p2 = (unsigned char *)s2;
+ do {
+ if (*p1++ != *p2++)
+ return (*--p1 - *--p2);
+ } while (--n != 0);
+ }
+ return (0);
+}