From b7ae098e21e4a5f8496d8d064ed2f38d59509eeb Mon Sep 17 00:00:00 2001 From: Dees Troy Date: Tue, 10 Sep 2013 20:47:35 +0000 Subject: Kang in older minzip for building in CM9 & CM7 CM7 and CM9 do not have libselinux needed in the newer minzip. --- minzipold/Bits.h | 357 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 357 insertions(+) create mode 100644 minzipold/Bits.h (limited to 'minzipold/Bits.h') diff --git a/minzipold/Bits.h b/minzipold/Bits.h new file mode 100644 index 000000000..f96e6c443 --- /dev/null +++ b/minzipold/Bits.h @@ -0,0 +1,357 @@ +/* + * Copyright 2006 The Android Open Source Project + * + * Some handy functions for manipulating bits and bytes. + */ +#ifndef _MINZIP_BITS +#define _MINZIP_BITS + +#include "inline_magic.h" + +#include +#include + +/* + * Get 1 byte. (Included to make the code more legible.) + */ +INLINE unsigned char get1(unsigned const char* pSrc) +{ + return *pSrc; +} + +/* + * Get 2 big-endian bytes. + */ +INLINE unsigned short get2BE(unsigned char const* pSrc) +{ + unsigned short result; + + result = *pSrc++ << 8; + result |= *pSrc++; + + return result; +} + +/* + * Get 4 big-endian bytes. + */ +INLINE unsigned int get4BE(unsigned char const* pSrc) +{ + unsigned int result; + + result = *pSrc++ << 24; + result |= *pSrc++ << 16; + result |= *pSrc++ << 8; + result |= *pSrc++; + + return result; +} + +/* + * Get 8 big-endian bytes. + */ +INLINE unsigned long long get8BE(unsigned char const* pSrc) +{ + unsigned long long result; + + result = (unsigned long long) *pSrc++ << 56; + result |= (unsigned long long) *pSrc++ << 48; + result |= (unsigned long long) *pSrc++ << 40; + result |= (unsigned long long) *pSrc++ << 32; + result |= (unsigned long long) *pSrc++ << 24; + result |= (unsigned long long) *pSrc++ << 16; + result |= (unsigned long long) *pSrc++ << 8; + result |= (unsigned long long) *pSrc++; + + return result; +} + +/* + * Get 2 little-endian bytes. + */ +INLINE unsigned short get2LE(unsigned char const* pSrc) +{ + unsigned short result; + + result = *pSrc++; + result |= *pSrc++ << 8; + + return result; +} + +/* + * Get 4 little-endian bytes. + */ +INLINE unsigned int get4LE(unsigned char const* pSrc) +{ + unsigned int result; + + result = *pSrc++; + result |= *pSrc++ << 8; + result |= *pSrc++ << 16; + result |= *pSrc++ << 24; + + return result; +} + +/* + * Get 8 little-endian bytes. + */ +INLINE unsigned long long get8LE(unsigned char const* pSrc) +{ + unsigned long long result; + + result = (unsigned long long) *pSrc++; + result |= (unsigned long long) *pSrc++ << 8; + result |= (unsigned long long) *pSrc++ << 16; + result |= (unsigned long long) *pSrc++ << 24; + result |= (unsigned long long) *pSrc++ << 32; + result |= (unsigned long long) *pSrc++ << 40; + result |= (unsigned long long) *pSrc++ << 48; + result |= (unsigned long long) *pSrc++ << 56; + + return result; +} + +/* + * Grab 1 byte and advance the data pointer. + */ +INLINE unsigned char read1(unsigned const char** ppSrc) +{ + return *(*ppSrc)++; +} + +/* + * Grab 2 big-endian bytes and advance the data pointer. + */ +INLINE unsigned short read2BE(unsigned char const** ppSrc) +{ + unsigned short result; + + result = *(*ppSrc)++ << 8; + result |= *(*ppSrc)++; + + return result; +} + +/* + * Grab 4 big-endian bytes and advance the data pointer. + */ +INLINE unsigned int read4BE(unsigned char const** ppSrc) +{ + unsigned int result; + + result = *(*ppSrc)++ << 24; + result |= *(*ppSrc)++ << 16; + result |= *(*ppSrc)++ << 8; + result |= *(*ppSrc)++; + + return result; +} + +/* + * Get 8 big-endian bytes. + */ +INLINE unsigned long long read8BE(unsigned char const** ppSrc) +{ + unsigned long long result; + + result = (unsigned long long) *(*ppSrc)++ << 56; + result |= (unsigned long long) *(*ppSrc)++ << 48; + result |= (unsigned long long) *(*ppSrc)++ << 40; + result |= (unsigned long long) *(*ppSrc)++ << 32; + result |= (unsigned long long) *(*ppSrc)++ << 24; + result |= (unsigned long long) *(*ppSrc)++ << 16; + result |= (unsigned long long) *(*ppSrc)++ << 8; + result |= (unsigned long long) *(*ppSrc)++; + + return result; +} + +/* + * Grab 2 little-endian bytes and advance the data pointer. + */ +INLINE unsigned short read2LE(unsigned char const** ppSrc) +{ + unsigned short result; + + result = *(*ppSrc)++; + result |= *(*ppSrc)++ << 8; + + return result; +} + +/* + * Grab 4 little-endian bytes and advance the data pointer. + */ +INLINE unsigned int read4LE(unsigned char const** ppSrc) +{ + unsigned int result; + + result = *(*ppSrc)++; + result |= *(*ppSrc)++ << 8; + result |= *(*ppSrc)++ << 16; + result |= *(*ppSrc)++ << 24; + + return result; +} + +/* + * Get 8 little-endian bytes. + */ +INLINE unsigned long long read8LE(unsigned char const** ppSrc) +{ + unsigned long long result; + + result = (unsigned long long) *(*ppSrc)++; + result |= (unsigned long long) *(*ppSrc)++ << 8; + result |= (unsigned long long) *(*ppSrc)++ << 16; + result |= (unsigned long long) *(*ppSrc)++ << 24; + result |= (unsigned long long) *(*ppSrc)++ << 32; + result |= (unsigned long long) *(*ppSrc)++ << 40; + result |= (unsigned long long) *(*ppSrc)++ << 48; + result |= (unsigned long long) *(*ppSrc)++ << 56; + + return result; +} + +/* + * Skip over a UTF-8 string. + */ +INLINE void skipUtf8String(unsigned char const** ppSrc) +{ + unsigned int length = read4BE(ppSrc); + + (*ppSrc) += length; +} + +/* + * Read a UTF-8 string into a fixed-size buffer, and null-terminate it. + * + * Returns the length of the original string. + */ +INLINE int readUtf8String(unsigned char const** ppSrc, char* buf, size_t bufLen) +{ + unsigned int length = read4BE(ppSrc); + size_t copyLen = (length < bufLen) ? length : bufLen-1; + + memcpy(buf, *ppSrc, copyLen); + buf[copyLen] = '\0'; + + (*ppSrc) += length; + return length; +} + +/* + * Read a UTF-8 string into newly-allocated storage, and null-terminate it. + * + * Returns the string and its length. (The latter is probably unnecessary + * for the way we're using UTF8.) + */ +INLINE char* readNewUtf8String(unsigned char const** ppSrc, size_t* pLength) +{ + unsigned int length = read4BE(ppSrc); + char* buf; + + buf = (char*) malloc(length+1); + + memcpy(buf, *ppSrc, length); + buf[length] = '\0'; + + (*ppSrc) += length; + + *pLength = length; + return buf; +} + + +/* + * Set 1 byte. (Included to make the code more legible.) + */ +INLINE void set1(unsigned char* buf, unsigned char val) +{ + *buf = (unsigned char)(val); +} + +/* + * Set 2 big-endian bytes. + */ +INLINE void set2BE(unsigned char* buf, unsigned short val) +{ + *buf++ = (unsigned char)(val >> 8); + *buf = (unsigned char)(val); +} + +/* + * Set 4 big-endian bytes. + */ +INLINE void set4BE(unsigned char* buf, unsigned int val) +{ + *buf++ = (unsigned char)(val >> 24); + *buf++ = (unsigned char)(val >> 16); + *buf++ = (unsigned char)(val >> 8); + *buf = (unsigned char)(val); +} + +/* + * Set 8 big-endian bytes. + */ +INLINE void set8BE(unsigned char* buf, unsigned long long val) +{ + *buf++ = (unsigned char)(val >> 56); + *buf++ = (unsigned char)(val >> 48); + *buf++ = (unsigned char)(val >> 40); + *buf++ = (unsigned char)(val >> 32); + *buf++ = (unsigned char)(val >> 24); + *buf++ = (unsigned char)(val >> 16); + *buf++ = (unsigned char)(val >> 8); + *buf = (unsigned char)(val); +} + +/* + * Set 2 little-endian bytes. + */ +INLINE void set2LE(unsigned char* buf, unsigned short val) +{ + *buf++ = (unsigned char)(val); + *buf = (unsigned char)(val >> 8); +} + +/* + * Set 4 little-endian bytes. + */ +INLINE void set4LE(unsigned char* buf, unsigned int val) +{ + *buf++ = (unsigned char)(val); + *buf++ = (unsigned char)(val >> 8); + *buf++ = (unsigned char)(val >> 16); + *buf = (unsigned char)(val >> 24); +} + +/* + * Set 8 little-endian bytes. + */ +INLINE void set8LE(unsigned char* buf, unsigned long long val) +{ + *buf++ = (unsigned char)(val); + *buf++ = (unsigned char)(val >> 8); + *buf++ = (unsigned char)(val >> 16); + *buf++ = (unsigned char)(val >> 24); + *buf++ = (unsigned char)(val >> 32); + *buf++ = (unsigned char)(val >> 40); + *buf++ = (unsigned char)(val >> 48); + *buf = (unsigned char)(val >> 56); +} + +/* + * Stuff a UTF-8 string into the buffer. + */ +INLINE void setUtf8String(unsigned char* buf, const unsigned char* str) +{ + unsigned int strLen = strlen((const char*)str); + + set4BE(buf, strLen); + memcpy(buf + sizeof(unsigned int), str, strLen); +} + +#endif /*_MINZIP_BITS*/ -- cgit v1.2.3