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Diffstat (limited to '3rdParty/CAres/src/bitncmp.c')
-rw-r--r-- | 3rdParty/CAres/src/bitncmp.c | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/3rdParty/CAres/src/bitncmp.c b/3rdParty/CAres/src/bitncmp.c deleted file mode 100644 index f36ffaa..0000000 --- a/3rdParty/CAres/src/bitncmp.c +++ /dev/null @@ -1,60 +0,0 @@ -/* $Id: bitncmp.c,v 1.8 2009-11-02 11:55:54 yangtse Exp $ */ - -/* - * 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. - */ - -#ifndef HAVE_BITNCMP - -#include "ares_setup.h" -#include "bitncmp.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 -ares_bitncmp(const void *l, const void *r, int n) { - unsigned int lb, rb; - int x, b; - - b = n / 8; - x = memcmp(l, r, b); - if (x || (n % 8) == 0) - return (x); - - lb = ((const unsigned char *)l)[b]; - rb = ((const unsigned 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); -} -#endif |