OS-2115 /etc/resolv.conf only handles a fixed number of DNS resolvers

OS-2148 suspect nscd is not honoring DNS TTLs

1 files changed, 68 insertions, 0 deletions

diff --git a/usr/src/lib/libresolv2_joy/common/isc/bitncmp.c b/usr/src/lib/libresolv2_joy/common/isc/bitncmp.c
new file mode 100644
index 0000000000..efe5009292
--- /dev/null
+++ b/usr/src/lib/libresolv2_joy/common/isc/bitncmp.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2004, 2005, 2008  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 1996, 1999, 2001  Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static const char rcsid[] = "$Id: bitncmp.c,v 1.5 2008/11/14 02:36:51 marka Exp $";
+#endif
+
+#include "port_before.h"
+
+#include <sys/types.h>
+
+#include <string.h>
+
+#include "port_after.h"
+
+#include <isc/misc.h>
+
+/*%
+ * int
+ * bitncmp(l, r, n)
+ *	compare bit masks l and r, for n bits.
+ * return:
+ *	-1, 1, or 0 in the libc tradition.
+ * note:
+ *	network byte order assumed.  this means 192.5.5.240/28 has
+ *	0x11110000 in its fourth octet.
+ * author:
+ *	Paul Vixie (ISC), June 1996
+ */
+int
+bitncmp(const void *l, const void *r, int n) {
+	u_int lb, rb;
+	int x, b;
+
+	b = n / 8;
+	x = memcmp(l, r, b);
+	if (x || (n % 8) == 0)
+		return (x);
+
+	lb = ((const u_char *)l)[b];
+	rb = ((const u_char *)r)[b];
+	for (b = n % 8; b > 0; b--) {
+		if ((lb & 0x80) != (rb & 0x80)) {
+			if (lb & 0x80)
+				return (1);
+			return (-1);
+		}
+		lb <<= 1;
+		rb <<= 1;
+	}
+	return (0);
+}
+
+/*! \file */