diff options
Diffstat (limited to 'contrib/bind9/lib/bind/isc/bitncmp.c')
-rw-r--r-- | contrib/bind9/lib/bind/isc/bitncmp.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/contrib/bind9/lib/bind/isc/bitncmp.c b/contrib/bind9/lib/bind/isc/bitncmp.c deleted file mode 100644 index 8764db1..0000000 --- a/contrib/bind9/lib/bind/isc/bitncmp.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") - * Copyright (c) 1996,1999 by Internet Software Consortium. - * - * Permission to use, copy, modify, and 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 1.2.18.1 2005/04/27 05:01:05 sra 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) - 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 */ |