1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/modules/libjar/zipwriter/src/StreamFunctions.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,68 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/.
1.7 + */
1.8 +
1.9 +#ifndef _nsStreamFunctions_h_
1.10 +#define _nsStreamFunctions_h_
1.11 +
1.12 +#include "nscore.h"
1.13 +#include "nsIInputStream.h"
1.14 +#include "nsIOutputStream.h"
1.15 +
1.16 +/*
1.17 + * ZIP file data is stored little-endian. These are helper functions to read and
1.18 + * write little endian data to/from a char buffer.
1.19 + * The off argument, where present, is incremented according to the number of
1.20 + * bytes consumed from the buffer.
1.21 + */
1.22 +inline NS_HIDDEN_(void) WRITE8(uint8_t* buf, uint32_t* off, uint8_t val)
1.23 +{
1.24 + buf[(*off)++] = val;
1.25 +}
1.26 +
1.27 +inline NS_HIDDEN_(void) WRITE16(uint8_t* buf, uint32_t* off, uint16_t val)
1.28 +{
1.29 + WRITE8(buf, off, val & 0xff);
1.30 + WRITE8(buf, off, (val >> 8) & 0xff);
1.31 +}
1.32 +
1.33 +inline NS_HIDDEN_(void) WRITE32(uint8_t* buf, uint32_t* off, uint32_t val)
1.34 +{
1.35 + WRITE16(buf, off, val & 0xffff);
1.36 + WRITE16(buf, off, (val >> 16) & 0xffff);
1.37 +}
1.38 +
1.39 +inline NS_HIDDEN_(uint8_t) READ8(const uint8_t* buf, uint32_t* off)
1.40 +{
1.41 + return buf[(*off)++];
1.42 +}
1.43 +
1.44 +inline NS_HIDDEN_(uint16_t) READ16(const uint8_t* buf, uint32_t* off)
1.45 +{
1.46 + uint16_t val = READ8(buf, off);
1.47 + val |= READ8(buf, off) << 8;
1.48 + return val;
1.49 +}
1.50 +
1.51 +inline NS_HIDDEN_(uint32_t) READ32(const uint8_t* buf, uint32_t* off)
1.52 +{
1.53 + uint32_t val = READ16(buf, off);
1.54 + val |= READ16(buf, off) << 16;
1.55 + return val;
1.56 +}
1.57 +
1.58 +inline NS_HIDDEN_(uint32_t) PEEK32(const uint8_t* buf)
1.59 +{
1.60 + return (uint32_t)( (buf [0] ) |
1.61 + (buf [1] << 8) |
1.62 + (buf [2] << 16) |
1.63 + (buf [3] << 24) );
1.64 +}
1.65 +
1.66 +NS_HIDDEN_(nsresult) ZW_ReadData(nsIInputStream *aStream, char *aBuffer, uint32_t aCount);
1.67 +
1.68 +NS_HIDDEN_(nsresult) ZW_WriteData(nsIOutputStream *aStream, const char *aBuffer,
1.69 + uint32_t aCount);
1.70 +
1.71 +#endif
