*** empty log message ***

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@1058 dc483132-0cff-0310-8789-dd5450dbe970

1 files changed, 55 insertions, 0 deletions

diff --git a/src/lib/krb5/krb/addr_order.c b/src/lib/krb5/krb/addr_order.c
new file mode 100644
index 000000000..2060c586b
--- /dev/null
+++ b/src/lib/krb5/krb/addr_order.c
@@ -0,0 +1,55 @@
+/*
+ * $Source$
+ * $Author$
+ *
+ * Copyright 1990 by the Massachusetts Institute of Technology.
+ *
+ * For copying and distribution information, please see the file
+ * <krb5/copyright.h>.
+ *
+ * krb5_address_order()
+ */
+
+#if !defined(lint) && !defined(SABER)
+static char rcsid_addr_order_c[] =
+"$Id$";
+#endif	/* !lint & !SABER */
+
+#include <krb5/copyright.h>
+#include <krb5/krb5.h>
+#include <krb5/ext-proto.h>
+
+#ifndef min
+#define min(a,b) ((a) > (b) ? (a) : (b))
+#endif
+
+/*
+ * Return an ordering on two addresses:  0 if the same,
+ * < 0 if first is less than 2nd, > 0 if first is greater than 2nd.
+ */
+int
+krb5_address_order(addr1, addr2)
+const register krb5_address *addr1;
+const register krb5_address *addr2;
+{
+    int dir;
+    register int i;
+    const int minlen = min(addr1->length, addr2->length);
+
+    if (addr1->addrtype != addr2->addrtype)
+	return(FALSE);
+
+    dir = addr1->length - addr2->length;
+
+    
+    for (i = 0; i < minlen; i++) {
+	if ((unsigned char) addr1->contents[i] <
+	    (unsigned char) addr2->contents[i])
+	    return -1;
+	else if ((unsigned char) addr1->contents[i] >
+		 (unsigned char) addr2->contents[i])
+	    return 1;
+    }
+    /* compared equal so far...which is longer? */
+    return dir;
+}