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Annotation of XNU/bsd/libkern/inet_ntoa.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: 
        !            23: /*
        !            24:  * Copyright 1994, 1995 Massachusetts Institute of Technology
        !            25:  *
        !            26:  * Permission to use, copy, modify, and distribute this software and
        !            27:  * its documentation for any purpose and without fee is hereby
        !            28:  * granted, provided that both the above copyright notice and this
        !            29:  * permission notice appear in all copies, that both the above
        !            30:  * copyright notice and this permission notice appear in all
        !            31:  * supporting documentation, and that the name of M.I.T. not be used
        !            32:  * in advertising or publicity pertaining to distribution of the
        !            33:  * software without specific, written prior permission.  M.I.T. makes
        !            34:  * no representations about the suitability of this software for any
        !            35:  * purpose.  It is provided "as is" without express or implied
        !            36:  * warranty.
        !            37:  *
        !            38:  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
        !            39:  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
        !            40:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
        !            41:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
        !            42:  * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
        !            43:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
        !            44:  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
        !            45:  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
        !            46:  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
        !            47:  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
        !            48:  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            49:  * SUCH DAMAGE.
        !            50:  */
        !            51: 
        !            52: #include <sys/param.h>
        !            53: #include <sys/systm.h>
        !            54: 
        !            55: #include <netinet/in.h>
        !            56: 
        !            57: char *
        !            58: inet_ntoa(struct in_addr ina)
        !            59: {
        !            60:        static char buf[4*sizeof "123"];
        !            61:        unsigned char *ucp = (unsigned char *)&ina;
        !            62: 
        !            63:        sprintf(buf, "%d.%d.%d.%d",
        !            64:                ucp[0] & 0xff,
        !            65:                ucp[1] & 0xff,
        !            66:                ucp[2] & 0xff,
        !            67:                ucp[3] & 0xff);
        !            68:        return buf;
        !            69: }
        !            70: 

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