media/mtransport/third_party/nrappkit/src/util/byteorder.c

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /**
     2    byteorder.c
     5    Copyright (C) 2007, Network Resonance, Inc.
     6    All Rights Reserved
     8    Redistribution and use in source and binary forms, with or without
     9    modification, are permitted provided that the following conditions
    10    are met:
    12    1. Redistributions of source code must retain the above copyright
    13       notice, this list of conditions and the following disclaimer.
    14    2. Redistributions in binary form must reproduce the above copyright
    15       notice, this list of conditions and the following disclaimer in the
    16       documentation and/or other materials provided with the distribution.
    17    3. Neither the name of Network Resonance, Inc. nor the name of any
    18       contributors to this software may be used to endorse or promote
    19       products derived from this software without specific prior written
    20       permission.
    22    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
    23    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    24    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    25    ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
    26    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    27    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    28    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    29    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    30    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    31    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    32    POSSIBILITY OF SUCH DAMAGE.
    35    briank@networkresonance.com  Wed May 16 16:46:00 PDT 2007
    36  */
    39 static char *RCSSTRING __UNUSED__ ="$Id: byteorder.c,v 1.2 2007/06/26 22:37:55 adamcain Exp $";
    41 #include "nr_common.h"
    42 #ifndef WIN32
    43 #include <arpa/inet.h>
    44 #endif
    45 #include "r_types.h"
    46 #include "byteorder.h"
    48 #define IS_BIG_ENDIAN (htonl(0x1) == 0x1)
    50 #define BYTE(n,i)   (((UCHAR*)&(n))[(i)])
    51 #define SWAP(n,x,y) tmp=BYTE((n),(x)), \
    52                     BYTE((n),(x))=BYTE((n),(y)), \
    53                     BYTE((n),(y))=tmp
    55 UINT8
    56 nr_htonll(UINT8 hostlonglong)
    57 {
    58     UINT8 netlonglong = hostlonglong;
    59     UCHAR tmp;
    61     if (!IS_BIG_ENDIAN) {
    62         SWAP(netlonglong, 0, 7);
    63         SWAP(netlonglong, 1, 6);
    64         SWAP(netlonglong, 2, 5);
    65         SWAP(netlonglong, 3, 4);
    66     }
    68     return netlonglong;
    69 }
    71 UINT8
    72 nr_ntohll(UINT8 netlonglong)
    73 {
    74     return nr_htonll(netlonglong);
    75 }

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