From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- modules/libjar/zipwriter/StreamFunctions.h | 68 ++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 modules/libjar/zipwriter/StreamFunctions.h (limited to 'modules/libjar/zipwriter/StreamFunctions.h') diff --git a/modules/libjar/zipwriter/StreamFunctions.h b/modules/libjar/zipwriter/StreamFunctions.h new file mode 100644 index 000000000..012fce986 --- /dev/null +++ b/modules/libjar/zipwriter/StreamFunctions.h @@ -0,0 +1,68 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +#ifndef _nsStreamFunctions_h_ +#define _nsStreamFunctions_h_ + +#include "nscore.h" +#include "nsIInputStream.h" +#include "nsIOutputStream.h" + +/* + * ZIP file data is stored little-endian. These are helper functions to read and + * write little endian data to/from a char buffer. + * The off argument, where present, is incremented according to the number of + * bytes consumed from the buffer. + */ +inline void WRITE8(uint8_t* buf, uint32_t* off, uint8_t val) +{ + buf[(*off)++] = val; +} + +inline void WRITE16(uint8_t* buf, uint32_t* off, uint16_t val) +{ + WRITE8(buf, off, val & 0xff); + WRITE8(buf, off, (val >> 8) & 0xff); +} + +inline void WRITE32(uint8_t* buf, uint32_t* off, uint32_t val) +{ + WRITE16(buf, off, val & 0xffff); + WRITE16(buf, off, (val >> 16) & 0xffff); +} + +inline uint8_t READ8(const uint8_t* buf, uint32_t* off) +{ + return buf[(*off)++]; +} + +inline uint16_t READ16(const uint8_t* buf, uint32_t* off) +{ + uint16_t val = READ8(buf, off); + val |= READ8(buf, off) << 8; + return val; +} + +inline uint32_t READ32(const uint8_t* buf, uint32_t* off) +{ + uint32_t val = READ16(buf, off); + val |= READ16(buf, off) << 16; + return val; +} + +inline uint32_t PEEK32(const uint8_t* buf) +{ + return (uint32_t)( (buf [0] ) | + (buf [1] << 8) | + (buf [2] << 16) | + (buf [3] << 24) ); +} + +nsresult ZW_ReadData(nsIInputStream *aStream, char *aBuffer, uint32_t aCount); + +nsresult ZW_WriteData(nsIOutputStream *aStream, const char *aBuffer, + uint32_t aCount); + +#endif -- cgit v1.2.3