/* 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