modules/libjar/zipwriter/src/StreamFunctions.h

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public
     2  * License, v. 2.0. If a copy of the MPL was not distributed with this
     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     4  */
     6 #ifndef _nsStreamFunctions_h_
     7 #define _nsStreamFunctions_h_
     9 #include "nscore.h"
    10 #include "nsIInputStream.h"
    11 #include "nsIOutputStream.h"
    13 /*
    14  * ZIP file data is stored little-endian. These are helper functions to read and
    15  * write little endian data to/from a char buffer.
    16  * The off argument, where present, is incremented according to the number of
    17  * bytes consumed from the buffer.
    18  */
    19 inline NS_HIDDEN_(void) WRITE8(uint8_t* buf, uint32_t* off, uint8_t val)
    20 {
    21   buf[(*off)++] = val;
    22 }
    24 inline NS_HIDDEN_(void) WRITE16(uint8_t* buf, uint32_t* off, uint16_t val)
    25 {
    26   WRITE8(buf, off, val & 0xff);
    27   WRITE8(buf, off, (val >> 8) & 0xff);
    28 }
    30 inline NS_HIDDEN_(void) WRITE32(uint8_t* buf, uint32_t* off, uint32_t val)
    31 {
    32   WRITE16(buf, off, val & 0xffff);
    33   WRITE16(buf, off, (val >> 16) & 0xffff);
    34 }
    36 inline NS_HIDDEN_(uint8_t) READ8(const uint8_t* buf, uint32_t* off)
    37 {
    38   return buf[(*off)++];
    39 }
    41 inline NS_HIDDEN_(uint16_t) READ16(const uint8_t* buf, uint32_t* off)
    42 {
    43   uint16_t val = READ8(buf, off);
    44   val |= READ8(buf, off) << 8;
    45   return val;
    46 }
    48 inline NS_HIDDEN_(uint32_t) READ32(const uint8_t* buf, uint32_t* off)
    49 {
    50   uint32_t val = READ16(buf, off);
    51   val |= READ16(buf, off) << 16;
    52   return val;
    53 }
    55 inline NS_HIDDEN_(uint32_t) PEEK32(const uint8_t* buf)
    56 {
    57   return (uint32_t)( (buf [0]      ) |
    58                      (buf [1] <<  8) |
    59                      (buf [2] << 16) |
    60                      (buf [3] << 24) );
    61 }
    63 NS_HIDDEN_(nsresult) ZW_ReadData(nsIInputStream *aStream, char *aBuffer, uint32_t aCount);
    65 NS_HIDDEN_(nsresult) ZW_WriteData(nsIOutputStream *aStream, const char *aBuffer,
    66                       uint32_t aCount);
    68 #endif

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