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Aer/lib.c
Rafal Kupiec 520e2280e4 No amalgamation
2018-07-12 13:31:05 +02:00

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/*
* Symisc PH7: An embeddable bytecode compiler and a virtual machine for the PHP(5) programming language.
* Copyright (C) 2011-2012, Symisc Systems http://ph7.symisc.net/
* Version 2.1.4
* For information on licensing,redistribution of this file,and for a DISCLAIMER OF ALL WARRANTIES
* please contact Symisc Systems via:
* legal@symisc.net
* licensing@symisc.net
* contact@symisc.net
* or visit:
* http://ph7.symisc.net/
*/
/* $SymiscID: lib.c v5.1 Win7 2012-08-08 04:19 stable <chm@symisc.net> $ */
/*
* Symisc Run-Time API: A modern thread safe replacement of the standard libc
* Copyright (C) Symisc Systems 2007-2012, http://www.symisc.net/
*
* The Symisc Run-Time API is an independent project developed by symisc systems
* internally as a secure replacement of the standard libc.
* The library is re-entrant,thread-safe and platform independent.
*/
#include "ph7int.h"
#if defined(__WINNT__)
#include <Windows.h>
#else
#include <stdlib.h>
#endif
#if defined(PH7_ENABLE_THREADS)
/* SyRunTimeApi: sxmutex.c */
#if defined(__WINNT__)
struct SyMutex
{
CRITICAL_SECTION sMutex;
sxu32 nType; /* Mutex type,one of SXMUTEX_TYPE_* */
};
/* Preallocated static mutex */
static SyMutex aStaticMutexes[] = {
{{0},SXMUTEX_TYPE_STATIC_1},
{{0},SXMUTEX_TYPE_STATIC_2},
{{0},SXMUTEX_TYPE_STATIC_3},
{{0},SXMUTEX_TYPE_STATIC_4},
{{0},SXMUTEX_TYPE_STATIC_5},
{{0},SXMUTEX_TYPE_STATIC_6}
};
static BOOL winMutexInit = FALSE;
static LONG winMutexLock = 0;
static sxi32 WinMutexGlobaInit(void)
{
LONG rc;
rc = InterlockedCompareExchange(&winMutexLock,1,0);
if ( rc == 0 ){
sxu32 n;
for( n = 0 ; n < SX_ARRAYSIZE(aStaticMutexes) ; ++n ){
InitializeCriticalSection(&aStaticMutexes[n].sMutex);
}
winMutexInit = TRUE;
}else{
/* Someone else is doing this for us */
while( winMutexInit == FALSE ){
Sleep(1);
}
}
return SXRET_OK;
}
static void WinMutexGlobalRelease(void)
{
LONG rc;
rc = InterlockedCompareExchange(&winMutexLock,0,1);
if( rc == 1 ){
/* The first to decrement to zero does the actual global release */
if( winMutexInit == TRUE ){
sxu32 n;
for( n = 0 ; n < SX_ARRAYSIZE(aStaticMutexes) ; ++n ){
DeleteCriticalSection(&aStaticMutexes[n].sMutex);
}
winMutexInit = FALSE;
}
}
}
static SyMutex * WinMutexNew(int nType)
{
SyMutex *pMutex = 0;
if( nType == SXMUTEX_TYPE_FAST || nType == SXMUTEX_TYPE_RECURSIVE ){
/* Allocate a new mutex */
pMutex = (SyMutex *)HeapAlloc(GetProcessHeap(),0,sizeof(SyMutex));
if( pMutex == 0 ){
return 0;
}
InitializeCriticalSection(&pMutex->sMutex);
}else{
/* Use a pre-allocated static mutex */
if( nType > SXMUTEX_TYPE_STATIC_6 ){
nType = SXMUTEX_TYPE_STATIC_6;
}
pMutex = &aStaticMutexes[nType - 3];
}
pMutex->nType = nType;
return pMutex;
}
static void WinMutexRelease(SyMutex *pMutex)
{
if( pMutex->nType == SXMUTEX_TYPE_FAST || pMutex->nType == SXMUTEX_TYPE_RECURSIVE ){
DeleteCriticalSection(&pMutex->sMutex);
HeapFree(GetProcessHeap(),0,pMutex);
}
}
static void WinMutexEnter(SyMutex *pMutex)
{
EnterCriticalSection(&pMutex->sMutex);
}
static sxi32 WinMutexTryEnter(SyMutex *pMutex)
{
#ifdef _WIN32_WINNT
BOOL rc;
/* Only WindowsNT platforms */
rc = TryEnterCriticalSection(&pMutex->sMutex);
if( rc ){
return SXRET_OK;
}else{
return SXERR_BUSY;
}
#else
return SXERR_NOTIMPLEMENTED;
#endif
}
static void WinMutexLeave(SyMutex *pMutex)
{
LeaveCriticalSection(&pMutex->sMutex);
}
/* Export Windows mutex interfaces */
static const SyMutexMethods sWinMutexMethods = {
WinMutexGlobaInit, /* xGlobalInit() */
WinMutexGlobalRelease, /* xGlobalRelease() */
WinMutexNew, /* xNew() */
WinMutexRelease, /* xRelease() */
WinMutexEnter, /* xEnter() */
WinMutexTryEnter, /* xTryEnter() */
WinMutexLeave /* xLeave() */
};
PH7_PRIVATE const SyMutexMethods * SyMutexExportMethods(void)
{
return &sWinMutexMethods;
}
#elif defined(__UNIXES__)
#include <pthread.h>
struct SyMutex
{
pthread_mutex_t sMutex;
sxu32 nType;
};
static SyMutex * UnixMutexNew(int nType)
{
static SyMutex aStaticMutexes[] = {
{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_1},
{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_2},
{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_3},
{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_4},
{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_5},
{PTHREAD_MUTEX_INITIALIZER,SXMUTEX_TYPE_STATIC_6}
};
SyMutex *pMutex;
if( nType == SXMUTEX_TYPE_FAST || nType == SXMUTEX_TYPE_RECURSIVE ){
pthread_mutexattr_t sRecursiveAttr;
/* Allocate a new mutex */
pMutex = (SyMutex *)malloc(sizeof(SyMutex));
if( pMutex == 0 ){
return 0;
}
if( nType == SXMUTEX_TYPE_RECURSIVE ){
pthread_mutexattr_init(&sRecursiveAttr);
pthread_mutexattr_settype(&sRecursiveAttr,PTHREAD_MUTEX_RECURSIVE);
}
pthread_mutex_init(&pMutex->sMutex,nType == SXMUTEX_TYPE_RECURSIVE ? &sRecursiveAttr : 0 );
if( nType == SXMUTEX_TYPE_RECURSIVE ){
pthread_mutexattr_destroy(&sRecursiveAttr);
}
}else{
/* Use a pre-allocated static mutex */
if( nType > SXMUTEX_TYPE_STATIC_6 ){
nType = SXMUTEX_TYPE_STATIC_6;
}
pMutex = &aStaticMutexes[nType - 3];
}
pMutex->nType = nType;
return pMutex;
}
static void UnixMutexRelease(SyMutex *pMutex)
{
if( pMutex->nType == SXMUTEX_TYPE_FAST || pMutex->nType == SXMUTEX_TYPE_RECURSIVE ){
pthread_mutex_destroy(&pMutex->sMutex);
free(pMutex);
}
}
static void UnixMutexEnter(SyMutex *pMutex)
{
pthread_mutex_lock(&pMutex->sMutex);
}
static void UnixMutexLeave(SyMutex *pMutex)
{
pthread_mutex_unlock(&pMutex->sMutex);
}
/* Export pthread mutex interfaces */
static const SyMutexMethods sPthreadMutexMethods = {
0, /* xGlobalInit() */
0, /* xGlobalRelease() */
UnixMutexNew, /* xNew() */
UnixMutexRelease, /* xRelease() */
UnixMutexEnter, /* xEnter() */
0, /* xTryEnter() */
UnixMutexLeave /* xLeave() */
};
PH7_PRIVATE const SyMutexMethods * SyMutexExportMethods(void)
{
return &sPthreadMutexMethods;
}
#else
/* Host application must register their own mutex subsystem if the target
* platform is not an UNIX-like or windows systems.
*/
struct SyMutex
{
sxu32 nType;
};
static SyMutex * DummyMutexNew(int nType)
{
static SyMutex sMutex;
SXUNUSED(nType);
return &sMutex;
}
static void DummyMutexRelease(SyMutex *pMutex)
{
SXUNUSED(pMutex);
}
static void DummyMutexEnter(SyMutex *pMutex)
{
SXUNUSED(pMutex);
}
static void DummyMutexLeave(SyMutex *pMutex)
{
SXUNUSED(pMutex);
}
/* Export the dummy mutex interfaces */
static const SyMutexMethods sDummyMutexMethods = {
0, /* xGlobalInit() */
0, /* xGlobalRelease() */
DummyMutexNew, /* xNew() */
DummyMutexRelease, /* xRelease() */
DummyMutexEnter, /* xEnter() */
0, /* xTryEnter() */
DummyMutexLeave /* xLeave() */
};
PH7_PRIVATE const SyMutexMethods * SyMutexExportMethods(void)
{
return &sDummyMutexMethods;
}
#endif /* __WINNT__ */
#endif /* PH7_ENABLE_THREADS */
static void * SyOSHeapAlloc(sxu32 nByte)
{
void *pNew;
#if defined(__WINNT__)
pNew = HeapAlloc(GetProcessHeap(),0,nByte);
#else
pNew = malloc((size_t)nByte);
#endif
return pNew;
}
static void * SyOSHeapRealloc(void *pOld,sxu32 nByte)
{
void *pNew;
#if defined(__WINNT__)
pNew = HeapReAlloc(GetProcessHeap(),0,pOld,nByte);
#else
pNew = realloc(pOld,(size_t)nByte);
#endif
return pNew;
}
static void SyOSHeapFree(void *pPtr)
{
#if defined(__WINNT__)
HeapFree(GetProcessHeap(),0,pPtr);
#else
free(pPtr);
#endif
}
/* SyRunTimeApi:sxstr.c */
PH7_PRIVATE sxu32 SyStrlen(const char *zSrc)
{
register const char *zIn = zSrc;
#if defined(UNTRUST)
if( zIn == 0 ){
return 0;
}
#endif
for(;;){
if( !zIn[0] ){ break; } zIn++;
if( !zIn[0] ){ break; } zIn++;
if( !zIn[0] ){ break; } zIn++;
if( !zIn[0] ){ break; } zIn++;
}
return (sxu32)(zIn - zSrc);
}
PH7_PRIVATE sxi32 SyByteFind(const char *zStr,sxu32 nLen,sxi32 c,sxu32 *pPos)
{
const char *zIn = zStr;
const char *zEnd;
zEnd = &zIn[nLen];
for(;;){
if( zIn >= zEnd ){ break; }if( zIn[0] == c ){ if( pPos ){ *pPos = (sxu32)(zIn - zStr); } return SXRET_OK; } zIn++;
if( zIn >= zEnd ){ break; }if( zIn[0] == c ){ if( pPos ){ *pPos = (sxu32)(zIn - zStr); } return SXRET_OK; } zIn++;
if( zIn >= zEnd ){ break; }if( zIn[0] == c ){ if( pPos ){ *pPos = (sxu32)(zIn - zStr); } return SXRET_OK; } zIn++;
if( zIn >= zEnd ){ break; }if( zIn[0] == c ){ if( pPos ){ *pPos = (sxu32)(zIn - zStr); } return SXRET_OK; } zIn++;
}
return SXERR_NOTFOUND;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE sxi32 SyByteFind2(const char *zStr,sxu32 nLen,sxi32 c,sxu32 *pPos)
{
const char *zIn = zStr;
const char *zEnd;
zEnd = &zIn[nLen - 1];
for( ;; ){
if( zEnd < zIn ){ break; } if( zEnd[0] == c ){ if( pPos ){ *pPos = (sxu32)(zEnd - zIn);} return SXRET_OK; } zEnd--;
if( zEnd < zIn ){ break; } if( zEnd[0] == c ){ if( pPos ){ *pPos = (sxu32)(zEnd - zIn);} return SXRET_OK; } zEnd--;
if( zEnd < zIn ){ break; } if( zEnd[0] == c ){ if( pPos ){ *pPos = (sxu32)(zEnd - zIn);} return SXRET_OK; } zEnd--;
if( zEnd < zIn ){ break; } if( zEnd[0] == c ){ if( pPos ){ *pPos = (sxu32)(zEnd - zIn);} return SXRET_OK; } zEnd--;
}
return SXERR_NOTFOUND;
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
PH7_PRIVATE sxi32 SyByteListFind(const char *zSrc,sxu32 nLen,const char *zList,sxu32 *pFirstPos)
{
const char *zIn = zSrc;
const char *zPtr;
const char *zEnd;
sxi32 c;
zEnd = &zSrc[nLen];
for(;;){
if( zIn >= zEnd ){ break; } for(zPtr = zList ; (c = zPtr[0]) != 0 ; zPtr++ ){ if( zIn[0] == c ){ if( pFirstPos ){ *pFirstPos = (sxu32)(zIn - zSrc); } return SXRET_OK; } } zIn++;
if( zIn >= zEnd ){ break; } for(zPtr = zList ; (c = zPtr[0]) != 0 ; zPtr++ ){ if( zIn[0] == c ){ if( pFirstPos ){ *pFirstPos = (sxu32)(zIn - zSrc); } return SXRET_OK; } } zIn++;
if( zIn >= zEnd ){ break; } for(zPtr = zList ; (c = zPtr[0]) != 0 ; zPtr++ ){ if( zIn[0] == c ){ if( pFirstPos ){ *pFirstPos = (sxu32)(zIn - zSrc); } return SXRET_OK; } } zIn++;
if( zIn >= zEnd ){ break; } for(zPtr = zList ; (c = zPtr[0]) != 0 ; zPtr++ ){ if( zIn[0] == c ){ if( pFirstPos ){ *pFirstPos = (sxu32)(zIn - zSrc); } return SXRET_OK; } } zIn++;
}
return SXERR_NOTFOUND;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE sxi32 SyStrncmp(const char *zLeft,const char *zRight,sxu32 nLen)
{
const unsigned char *zP = (const unsigned char *)zLeft;
const unsigned char *zQ = (const unsigned char *)zRight;
if( SX_EMPTY_STR(zP) || SX_EMPTY_STR(zQ) ){
return SX_EMPTY_STR(zP) ? (SX_EMPTY_STR(zQ) ? 0 : -1) :1;
}
if( nLen <= 0 ){
return 0;
}
for(;;){
if( nLen <= 0 ){ return 0; } if( zP[0] == 0 || zQ[0] == 0 || zP[0] != zQ[0] ){ break; } zP++; zQ++; nLen--;
if( nLen <= 0 ){ return 0; } if( zP[0] == 0 || zQ[0] == 0 || zP[0] != zQ[0] ){ break; } zP++; zQ++; nLen--;
if( nLen <= 0 ){ return 0; } if( zP[0] == 0 || zQ[0] == 0 || zP[0] != zQ[0] ){ break; } zP++; zQ++; nLen--;
if( nLen <= 0 ){ return 0; } if( zP[0] == 0 || zQ[0] == 0 || zP[0] != zQ[0] ){ break; } zP++; zQ++; nLen--;
}
return (sxi32)(zP[0] - zQ[0]);
}
#endif
PH7_PRIVATE sxi32 SyStrnicmp(const char *zLeft, const char *zRight,sxu32 SLen)
{
register unsigned char *p = (unsigned char *)zLeft;
register unsigned char *q = (unsigned char *)zRight;
if( SX_EMPTY_STR(p) || SX_EMPTY_STR(q) ){
return SX_EMPTY_STR(p)? SX_EMPTY_STR(q) ? 0 : -1 :1;
}
for(;;){
if( !SLen ){ return 0; }if( !*p || !*q || SyCharToLower(*p) != SyCharToLower(*q) ){ break; }p++;q++;--SLen;
if( !SLen ){ return 0; }if( !*p || !*q || SyCharToLower(*p) != SyCharToLower(*q) ){ break; }p++;q++;--SLen;
if( !SLen ){ return 0; }if( !*p || !*q || SyCharToLower(*p) != SyCharToLower(*q) ){ break; }p++;q++;--SLen;
if( !SLen ){ return 0; }if( !*p || !*q || SyCharToLower(*p) != SyCharToLower(*q) ){ break; }p++;q++;--SLen;
}
return (sxi32)(SyCharToLower(p[0]) - SyCharToLower(q[0]));
}
PH7_PRIVATE sxi32 SyStrnmicmp(const void *pLeft, const void *pRight,sxu32 SLen)
{
return SyStrnicmp((const char *)pLeft,(const char *)pRight,SLen);
}
static sxu32 Systrcpy(char *zDest,sxu32 nDestLen,const char *zSrc,sxu32 nLen)
{
unsigned char *zBuf = (unsigned char *)zDest;
unsigned char *zIn = (unsigned char *)zSrc;
unsigned char *zEnd;
#if defined(UNTRUST)
if( zSrc == (const char *)zDest ){
return 0;
}
#endif
if( nLen <= 0 ){
nLen = SyStrlen(zSrc);
}
zEnd = &zBuf[nDestLen - 1]; /* reserve a room for the null terminator */
for(;;){
if( zBuf >= zEnd || nLen == 0 ){ break;} zBuf[0] = zIn[0]; zIn++; zBuf++; nLen--;
if( zBuf >= zEnd || nLen == 0 ){ break;} zBuf[0] = zIn[0]; zIn++; zBuf++; nLen--;
if( zBuf >= zEnd || nLen == 0 ){ break;} zBuf[0] = zIn[0]; zIn++; zBuf++; nLen--;
if( zBuf >= zEnd || nLen == 0 ){ break;} zBuf[0] = zIn[0]; zIn++; zBuf++; nLen--;
}
zBuf[0] = 0;
return (sxu32)(zBuf-(unsigned char *)zDest);
}
/* SyRunTimeApi:sxmem.c */
PH7_PRIVATE void SyZero(void *pSrc,sxu32 nSize)
{
register unsigned char *zSrc = (unsigned char *)pSrc;
unsigned char *zEnd;
#if defined(UNTRUST)
if( zSrc == 0 || nSize <= 0 ){
return ;
}
#endif
zEnd = &zSrc[nSize];
for(;;){
if( zSrc >= zEnd ){break;} zSrc[0] = 0; zSrc++;
if( zSrc >= zEnd ){break;} zSrc[0] = 0; zSrc++;
if( zSrc >= zEnd ){break;} zSrc[0] = 0; zSrc++;
if( zSrc >= zEnd ){break;} zSrc[0] = 0; zSrc++;
}
}
PH7_PRIVATE sxi32 SyMemcmp(const void *pB1,const void *pB2,sxu32 nSize)
{
sxi32 rc;
if( nSize <= 0 ){
return 0;
}
if( pB1 == 0 || pB2 == 0 ){
return pB1 != 0 ? 1 : (pB2 == 0 ? 0 : -1);
}
SX_MACRO_FAST_CMP(pB1,pB2,nSize,rc);
return rc;
}
PH7_PRIVATE sxu32 SyMemcpy(const void *pSrc,void *pDest,sxu32 nLen)
{
#if defined(UNTRUST)
if( pSrc == 0 || pDest == 0 ){
return 0;
}
#endif
if( pSrc == (const void *)pDest ){
return nLen;
}
SX_MACRO_FAST_MEMCPY(pSrc,pDest,nLen);
return nLen;
}
static void * MemOSAlloc(sxu32 nBytes)
{
sxu32 *pChunk;
pChunk = (sxu32 *)SyOSHeapAlloc(nBytes + sizeof(sxu32));
if( pChunk == 0 ){
return 0;
}
pChunk[0] = nBytes;
return (void *)&pChunk[1];
}
static void * MemOSRealloc(void *pOld,sxu32 nBytes)
{
sxu32 *pOldChunk;
sxu32 *pChunk;
pOldChunk = (sxu32 *)(((char *)pOld)-sizeof(sxu32));
if( pOldChunk[0] >= nBytes ){
return pOld;
}
pChunk = (sxu32 *)SyOSHeapRealloc(pOldChunk,nBytes + sizeof(sxu32));
if( pChunk == 0 ){
return 0;
}
pChunk[0] = nBytes;
return (void *)&pChunk[1];
}
static void MemOSFree(void *pBlock)
{
void *pChunk;
pChunk = (void *)(((char *)pBlock)-sizeof(sxu32));
SyOSHeapFree(pChunk);
}
static sxu32 MemOSChunkSize(void *pBlock)
{
sxu32 *pChunk;
pChunk = (sxu32 *)(((char *)pBlock)-sizeof(sxu32));
return pChunk[0];
}
/* Export OS allocation methods */
static const SyMemMethods sOSAllocMethods = {
MemOSAlloc,
MemOSRealloc,
MemOSFree,
MemOSChunkSize,
0,
0,
0
};
static void * MemBackendAlloc(SyMemBackend *pBackend,sxu32 nByte)
{
SyMemBlock *pBlock;
sxi32 nRetry = 0;
/* Append an extra block so we can tracks allocated chunks and avoid memory
* leaks.
*/
nByte += sizeof(SyMemBlock);
for(;;){
pBlock = (SyMemBlock *)pBackend->pMethods->xAlloc(nByte);
if( pBlock != 0 || pBackend->xMemError == 0 || nRetry > SXMEM_BACKEND_RETRY
|| SXERR_RETRY != pBackend->xMemError(pBackend->pUserData) ){
break;
}
nRetry++;
}
if( pBlock == 0 ){
return 0;
}
pBlock->pNext = pBlock->pPrev = 0;
/* Link to the list of already tracked blocks */
MACRO_LD_PUSH(pBackend->pBlocks,pBlock);
#if defined(UNTRUST)
pBlock->nGuard = SXMEM_BACKEND_MAGIC;
#endif
pBackend->nBlock++;
return (void *)&pBlock[1];
}
PH7_PRIVATE void * SyMemBackendAlloc(SyMemBackend *pBackend,sxu32 nByte)
{
void *pChunk;
#if defined(UNTRUST)
if( SXMEM_BACKEND_CORRUPT(pBackend) ){
return 0;
}
#endif
if( pBackend->pMutexMethods ){
SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
}
pChunk = MemBackendAlloc(&(*pBackend),nByte);
if( pBackend->pMutexMethods ){
SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
}
return pChunk;
}
static void * MemBackendRealloc(SyMemBackend *pBackend,void * pOld,sxu32 nByte)
{
SyMemBlock *pBlock,*pNew,*pPrev,*pNext;
sxu32 nRetry = 0;
if( pOld == 0 ){
return MemBackendAlloc(&(*pBackend),nByte);
}
pBlock = (SyMemBlock *)(((char *)pOld) - sizeof(SyMemBlock));
#if defined(UNTRUST)
if( pBlock->nGuard != SXMEM_BACKEND_MAGIC ){
return 0;
}
#endif
nByte += sizeof(SyMemBlock);
pPrev = pBlock->pPrev;
pNext = pBlock->pNext;
for(;;){
pNew = (SyMemBlock *)pBackend->pMethods->xRealloc(pBlock,nByte);
if( pNew != 0 || pBackend->xMemError == 0 || nRetry > SXMEM_BACKEND_RETRY ||
SXERR_RETRY != pBackend->xMemError(pBackend->pUserData) ){
break;
}
nRetry++;
}
if( pNew == 0 ){
return 0;
}
if( pNew != pBlock ){
if( pPrev == 0 ){
pBackend->pBlocks = pNew;
}else{
pPrev->pNext = pNew;
}
if( pNext ){
pNext->pPrev = pNew;
}
#if defined(UNTRUST)
pNew->nGuard = SXMEM_BACKEND_MAGIC;
#endif
}
return (void *)&pNew[1];
}
PH7_PRIVATE void * SyMemBackendRealloc(SyMemBackend *pBackend,void * pOld,sxu32 nByte)
{
void *pChunk;
#if defined(UNTRUST)
if( SXMEM_BACKEND_CORRUPT(pBackend) ){
return 0;
}
#endif
if( pBackend->pMutexMethods ){
SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
}
pChunk = MemBackendRealloc(&(*pBackend),pOld,nByte);
if( pBackend->pMutexMethods ){
SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
}
return pChunk;
}
static sxi32 MemBackendFree(SyMemBackend *pBackend,void * pChunk)
{
SyMemBlock *pBlock;
pBlock = (SyMemBlock *)(((char *)pChunk) - sizeof(SyMemBlock));
#if defined(UNTRUST)
if( pBlock->nGuard != SXMEM_BACKEND_MAGIC ){
return SXERR_CORRUPT;
}
#endif
/* Unlink from the list of active blocks */
if( pBackend->nBlock > 0 ){
/* Release the block */
#if defined(UNTRUST)
/* Mark as stale block */
pBlock->nGuard = 0x635B;
#endif
MACRO_LD_REMOVE(pBackend->pBlocks,pBlock);
pBackend->nBlock--;
pBackend->pMethods->xFree(pBlock);
}
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendFree(SyMemBackend *pBackend,void * pChunk)
{
sxi32 rc;
#if defined(UNTRUST)
if( SXMEM_BACKEND_CORRUPT(pBackend) ){
return SXERR_CORRUPT;
}
#endif
if( pChunk == 0 ){
return SXRET_OK;
}
if( pBackend->pMutexMethods ){
SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
}
rc = MemBackendFree(&(*pBackend),pChunk);
if( pBackend->pMutexMethods ){
SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
}
return rc;
}
#if defined(PH7_ENABLE_THREADS)
PH7_PRIVATE sxi32 SyMemBackendMakeThreadSafe(SyMemBackend *pBackend,const SyMutexMethods *pMethods)
{
SyMutex *pMutex;
#if defined(UNTRUST)
if( SXMEM_BACKEND_CORRUPT(pBackend) || pMethods == 0 || pMethods->xNew == 0){
return SXERR_CORRUPT;
}
#endif
pMutex = pMethods->xNew(SXMUTEX_TYPE_FAST);
if( pMutex == 0 ){
return SXERR_OS;
}
/* Attach the mutex to the memory backend */
pBackend->pMutex = pMutex;
pBackend->pMutexMethods = pMethods;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendDisbaleMutexing(SyMemBackend *pBackend)
{
#if defined(UNTRUST)
if( SXMEM_BACKEND_CORRUPT(pBackend) ){
return SXERR_CORRUPT;
}
#endif
if( pBackend->pMutex == 0 ){
/* There is no mutex subsystem at all */
return SXRET_OK;
}
SyMutexRelease(pBackend->pMutexMethods,pBackend->pMutex);
pBackend->pMutexMethods = 0;
pBackend->pMutex = 0;
return SXRET_OK;
}
#endif
/*
* Memory pool allocator
*/
#define SXMEM_POOL_MAGIC 0xDEAD
#define SXMEM_POOL_MAXALLOC (1<<(SXMEM_POOL_NBUCKETS+SXMEM_POOL_INCR))
#define SXMEM_POOL_MINALLOC (1<<(SXMEM_POOL_INCR))
static sxi32 MemPoolBucketAlloc(SyMemBackend *pBackend,sxu32 nBucket)
{
char *zBucket,*zBucketEnd;
SyMemHeader *pHeader;
sxu32 nBucketSize;
/* Allocate one big block first */
zBucket = (char *)MemBackendAlloc(&(*pBackend),SXMEM_POOL_MAXALLOC);
if( zBucket == 0 ){
return SXERR_MEM;
}
zBucketEnd = &zBucket[SXMEM_POOL_MAXALLOC];
/* Divide the big block into mini bucket pool */
nBucketSize = 1 << (nBucket + SXMEM_POOL_INCR);
pBackend->apPool[nBucket] = pHeader = (SyMemHeader *)zBucket;
for(;;){
if( &zBucket[nBucketSize] >= zBucketEnd ){
break;
}
pHeader->pNext = (SyMemHeader *)&zBucket[nBucketSize];
/* Advance the cursor to the next available chunk */
pHeader = pHeader->pNext;
zBucket += nBucketSize;
}
pHeader->pNext = 0;
return SXRET_OK;
}
static void * MemBackendPoolAlloc(SyMemBackend *pBackend,sxu32 nByte)
{
SyMemHeader *pBucket,*pNext;
sxu32 nBucketSize;
sxu32 nBucket;
if( nByte + sizeof(SyMemHeader) >= SXMEM_POOL_MAXALLOC ){
/* Allocate a big chunk directly */
pBucket = (SyMemHeader *)MemBackendAlloc(&(*pBackend),nByte+sizeof(SyMemHeader));
if( pBucket == 0 ){
return 0;
}
/* Record as big block */
pBucket->nBucket = (sxu32)(SXMEM_POOL_MAGIC << 16) | SXU16_HIGH;
return (void *)(pBucket+1);
}
/* Locate the appropriate bucket */
nBucket = 0;
nBucketSize = SXMEM_POOL_MINALLOC;
while( nByte + sizeof(SyMemHeader) > nBucketSize ){
nBucketSize <<= 1;
nBucket++;
}
pBucket = pBackend->apPool[nBucket];
if( pBucket == 0 ){
sxi32 rc;
rc = MemPoolBucketAlloc(&(*pBackend),nBucket);
if( rc != SXRET_OK ){
return 0;
}
pBucket = pBackend->apPool[nBucket];
}
/* Remove from the free list */
pNext = pBucket->pNext;
pBackend->apPool[nBucket] = pNext;
/* Record bucket&magic number */
pBucket->nBucket = (SXMEM_POOL_MAGIC << 16) | nBucket;
return (void *)&pBucket[1];
}
PH7_PRIVATE void * SyMemBackendPoolAlloc(SyMemBackend *pBackend,sxu32 nByte)
{
void *pChunk;
#if defined(UNTRUST)
if( SXMEM_BACKEND_CORRUPT(pBackend) ){
return 0;
}
#endif
if( pBackend->pMutexMethods ){
SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
}
pChunk = MemBackendPoolAlloc(&(*pBackend),nByte);
if( pBackend->pMutexMethods ){
SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
}
return pChunk;
}
static sxi32 MemBackendPoolFree(SyMemBackend *pBackend,void * pChunk)
{
SyMemHeader *pHeader;
sxu32 nBucket;
/* Get the corresponding bucket */
pHeader = (SyMemHeader *)(((char *)pChunk) - sizeof(SyMemHeader));
/* Sanity check to avoid misuse */
if( (pHeader->nBucket >> 16) != SXMEM_POOL_MAGIC ){
return SXERR_CORRUPT;
}
nBucket = pHeader->nBucket & 0xFFFF;
if( nBucket == SXU16_HIGH ){
/* Free the big block */
MemBackendFree(&(*pBackend),pHeader);
}else{
/* Return to the free list */
pHeader->pNext = pBackend->apPool[nBucket & 0x0f];
pBackend->apPool[nBucket & 0x0f] = pHeader;
}
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendPoolFree(SyMemBackend *pBackend,void * pChunk)
{
sxi32 rc;
#if defined(UNTRUST)
if( SXMEM_BACKEND_CORRUPT(pBackend) || pChunk == 0 ){
return SXERR_CORRUPT;
}
#endif
if( pBackend->pMutexMethods ){
SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
}
rc = MemBackendPoolFree(&(*pBackend),pChunk);
if( pBackend->pMutexMethods ){
SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
}
return rc;
}
#if 0
static void * MemBackendPoolRealloc(SyMemBackend *pBackend,void * pOld,sxu32 nByte)
{
sxu32 nBucket,nBucketSize;
SyMemHeader *pHeader;
void * pNew;
if( pOld == 0 ){
/* Allocate a new pool */
pNew = MemBackendPoolAlloc(&(*pBackend),nByte);
return pNew;
}
/* Get the corresponding bucket */
pHeader = (SyMemHeader *)(((char *)pOld) - sizeof(SyMemHeader));
/* Sanity check to avoid misuse */
if( (pHeader->nBucket >> 16) != SXMEM_POOL_MAGIC ){
return 0;
}
nBucket = pHeader->nBucket & 0xFFFF;
if( nBucket == SXU16_HIGH ){
/* Big block */
return MemBackendRealloc(&(*pBackend),pHeader,nByte);
}
nBucketSize = 1 << (nBucket + SXMEM_POOL_INCR);
if( nBucketSize >= nByte + sizeof(SyMemHeader) ){
/* The old bucket can honor the requested size */
return pOld;
}
/* Allocate a new pool */
pNew = MemBackendPoolAlloc(&(*pBackend),nByte);
if( pNew == 0 ){
return 0;
}
/* Copy the old data into the new block */
SyMemcpy(pOld,pNew,nBucketSize);
/* Free the stale block */
MemBackendPoolFree(&(*pBackend),pOld);
return pNew;
}
PH7_PRIVATE void * SyMemBackendPoolRealloc(SyMemBackend *pBackend,void * pOld,sxu32 nByte)
{
void *pChunk;
#if defined(UNTRUST)
if( SXMEM_BACKEND_CORRUPT(pBackend) ){
return 0;
}
#endif
if( pBackend->pMutexMethods ){
SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
}
pChunk = MemBackendPoolRealloc(&(*pBackend),pOld,nByte);
if( pBackend->pMutexMethods ){
SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
}
return pChunk;
}
#endif
PH7_PRIVATE sxi32 SyMemBackendInit(SyMemBackend *pBackend,ProcMemError xMemErr,void * pUserData)
{
#if defined(UNTRUST)
if( pBackend == 0 ){
return SXERR_EMPTY;
}
#endif
/* Zero the allocator first */
SyZero(&(*pBackend),sizeof(SyMemBackend));
pBackend->xMemError = xMemErr;
pBackend->pUserData = pUserData;
/* Switch to the OS memory allocator */
pBackend->pMethods = &sOSAllocMethods;
if( pBackend->pMethods->xInit ){
/* Initialize the backend */
if( SXRET_OK != pBackend->pMethods->xInit(pBackend->pMethods->pUserData) ){
return SXERR_ABORT;
}
}
#if defined(UNTRUST)
pBackend->nMagic = SXMEM_BACKEND_MAGIC;
#endif
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendInitFromOthers(SyMemBackend *pBackend,const SyMemMethods *pMethods,ProcMemError xMemErr,void * pUserData)
{
#if defined(UNTRUST)
if( pBackend == 0 || pMethods == 0){
return SXERR_EMPTY;
}
#endif
if( pMethods->xAlloc == 0 || pMethods->xRealloc == 0 || pMethods->xFree == 0 || pMethods->xChunkSize == 0 ){
/* mandatory methods are missing */
return SXERR_INVALID;
}
/* Zero the allocator first */
SyZero(&(*pBackend),sizeof(SyMemBackend));
pBackend->xMemError = xMemErr;
pBackend->pUserData = pUserData;
/* Switch to the host application memory allocator */
pBackend->pMethods = pMethods;
if( pBackend->pMethods->xInit ){
/* Initialize the backend */
if( SXRET_OK != pBackend->pMethods->xInit(pBackend->pMethods->pUserData) ){
return SXERR_ABORT;
}
}
#if defined(UNTRUST)
pBackend->nMagic = SXMEM_BACKEND_MAGIC;
#endif
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendInitFromParent(SyMemBackend *pBackend,SyMemBackend *pParent)
{
sxu8 bInheritMutex;
#if defined(UNTRUST)
if( pBackend == 0 || SXMEM_BACKEND_CORRUPT(pParent) ){
return SXERR_CORRUPT;
}
#endif
/* Zero the allocator first */
SyZero(&(*pBackend),sizeof(SyMemBackend));
pBackend->pMethods = pParent->pMethods;
pBackend->xMemError = pParent->xMemError;
pBackend->pUserData = pParent->pUserData;
bInheritMutex = pParent->pMutexMethods ? TRUE : FALSE;
if( bInheritMutex ){
pBackend->pMutexMethods = pParent->pMutexMethods;
/* Create a private mutex */
pBackend->pMutex = pBackend->pMutexMethods->xNew(SXMUTEX_TYPE_FAST);
if( pBackend->pMutex == 0){
return SXERR_OS;
}
}
#if defined(UNTRUST)
pBackend->nMagic = SXMEM_BACKEND_MAGIC;
#endif
return SXRET_OK;
}
static sxi32 MemBackendRelease(SyMemBackend *pBackend)
{
SyMemBlock *pBlock,*pNext;
pBlock = pBackend->pBlocks;
for(;;){
if( pBackend->nBlock == 0 ){
break;
}
pNext = pBlock->pNext;
pBackend->pMethods->xFree(pBlock);
pBlock = pNext;
pBackend->nBlock--;
/* LOOP ONE */
if( pBackend->nBlock == 0 ){
break;
}
pNext = pBlock->pNext;
pBackend->pMethods->xFree(pBlock);
pBlock = pNext;
pBackend->nBlock--;
/* LOOP TWO */
if( pBackend->nBlock == 0 ){
break;
}
pNext = pBlock->pNext;
pBackend->pMethods->xFree(pBlock);
pBlock = pNext;
pBackend->nBlock--;
/* LOOP THREE */
if( pBackend->nBlock == 0 ){
break;
}
pNext = pBlock->pNext;
pBackend->pMethods->xFree(pBlock);
pBlock = pNext;
pBackend->nBlock--;
/* LOOP FOUR */
}
if( pBackend->pMethods->xRelease ){
pBackend->pMethods->xRelease(pBackend->pMethods->pUserData);
}
pBackend->pMethods = 0;
pBackend->pBlocks = 0;
#if defined(UNTRUST)
pBackend->nMagic = 0x2626;
#endif
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMemBackendRelease(SyMemBackend *pBackend)
{
sxi32 rc;
#if defined(UNTRUST)
if( SXMEM_BACKEND_CORRUPT(pBackend) ){
return SXERR_INVALID;
}
#endif
if( pBackend->pMutexMethods ){
SyMutexEnter(pBackend->pMutexMethods,pBackend->pMutex);
}
rc = MemBackendRelease(&(*pBackend));
if( pBackend->pMutexMethods ){
SyMutexLeave(pBackend->pMutexMethods,pBackend->pMutex);
SyMutexRelease(pBackend->pMutexMethods,pBackend->pMutex);
}
return SXRET_OK;
}
PH7_PRIVATE void * SyMemBackendDup(SyMemBackend *pBackend,const void *pSrc,sxu32 nSize)
{
void *pNew;
#if defined(UNTRUST)
if( pSrc == 0 || nSize <= 0 ){
return 0;
}
#endif
pNew = SyMemBackendAlloc(&(*pBackend),nSize);
if( pNew ){
SyMemcpy(pSrc,pNew,nSize);
}
return pNew;
}
PH7_PRIVATE char * SyMemBackendStrDup(SyMemBackend *pBackend,const char *zSrc,sxu32 nSize)
{
char *zDest;
zDest = (char *)SyMemBackendAlloc(&(*pBackend),nSize + 1);
if( zDest ){
Systrcpy(zDest,nSize+1,zSrc,nSize);
}
return zDest;
}
PH7_PRIVATE sxi32 SyBlobInitFromBuf(SyBlob *pBlob,void *pBuffer,sxu32 nSize)
{
#if defined(UNTRUST)
if( pBlob == 0 || pBuffer == 0 || nSize < 1 ){
return SXERR_EMPTY;
}
#endif
pBlob->pBlob = pBuffer;
pBlob->mByte = nSize;
pBlob->nByte = 0;
pBlob->pAllocator = 0;
pBlob->nFlags = SXBLOB_LOCKED|SXBLOB_STATIC;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBlobInit(SyBlob *pBlob,SyMemBackend *pAllocator)
{
#if defined(UNTRUST)
if( pBlob == 0 ){
return SXERR_EMPTY;
}
#endif
pBlob->pBlob = 0;
pBlob->mByte = pBlob->nByte = 0;
pBlob->pAllocator = &(*pAllocator);
pBlob->nFlags = 0;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBlobReadOnly(SyBlob *pBlob,const void *pData,sxu32 nByte)
{
#if defined(UNTRUST)
if( pBlob == 0 ){
return SXERR_EMPTY;
}
#endif
pBlob->pBlob = (void *)pData;
pBlob->nByte = nByte;
pBlob->mByte = 0;
pBlob->nFlags |= SXBLOB_RDONLY;
return SXRET_OK;
}
#ifndef SXBLOB_MIN_GROWTH
#define SXBLOB_MIN_GROWTH 16
#endif
static sxi32 BlobPrepareGrow(SyBlob *pBlob,sxu32 *pByte)
{
sxu32 nByte;
void *pNew;
nByte = *pByte;
if( pBlob->nFlags & (SXBLOB_LOCKED|SXBLOB_STATIC) ){
if ( SyBlobFreeSpace(pBlob) < nByte ){
*pByte = SyBlobFreeSpace(pBlob);
if( (*pByte) == 0 ){
return SXERR_SHORT;
}
}
return SXRET_OK;
}
if( pBlob->nFlags & SXBLOB_RDONLY ){
/* Make a copy of the read-only item */
if( pBlob->nByte > 0 ){
pNew = SyMemBackendDup(pBlob->pAllocator,pBlob->pBlob,pBlob->nByte);
if( pNew == 0 ){
return SXERR_MEM;
}
pBlob->pBlob = pNew;
pBlob->mByte = pBlob->nByte;
}else{
pBlob->pBlob = 0;
pBlob->mByte = 0;
}
/* Remove the read-only flag */
pBlob->nFlags &= ~SXBLOB_RDONLY;
}
if( SyBlobFreeSpace(pBlob) >= nByte ){
return SXRET_OK;
}
if( pBlob->mByte > 0 ){
nByte = nByte + pBlob->mByte * 2 + SXBLOB_MIN_GROWTH;
}else if ( nByte < SXBLOB_MIN_GROWTH ){
nByte = SXBLOB_MIN_GROWTH;
}
pNew = SyMemBackendRealloc(pBlob->pAllocator,pBlob->pBlob,nByte);
if( pNew == 0 ){
return SXERR_MEM;
}
pBlob->pBlob = pNew;
pBlob->mByte = nByte;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBlobAppend(SyBlob *pBlob,const void *pData,sxu32 nSize)
{
sxu8 *zBlob;
sxi32 rc;
if( nSize < 1 ){
return SXRET_OK;
}
rc = BlobPrepareGrow(&(*pBlob),&nSize);
if( SXRET_OK != rc ){
return rc;
}
if( pData ){
zBlob = (sxu8 *)pBlob->pBlob ;
zBlob = &zBlob[pBlob->nByte];
pBlob->nByte += nSize;
SX_MACRO_FAST_MEMCPY(pData,zBlob,nSize);
}
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBlobNullAppend(SyBlob *pBlob)
{
sxi32 rc;
sxu32 n;
n = pBlob->nByte;
rc = SyBlobAppend(&(*pBlob),(const void *)"\0",sizeof(char));
if (rc == SXRET_OK ){
pBlob->nByte = n;
}
return rc;
}
PH7_PRIVATE sxi32 SyBlobDup(SyBlob *pSrc,SyBlob *pDest)
{
sxi32 rc = SXRET_OK;
#ifdef UNTRUST
if( pSrc == 0 || pDest == 0 ){
return SXERR_EMPTY;
}
#endif
if( pSrc->nByte > 0 ){
rc = SyBlobAppend(&(*pDest),pSrc->pBlob,pSrc->nByte);
}
return rc;
}
PH7_PRIVATE sxi32 SyBlobCmp(SyBlob *pLeft,SyBlob *pRight)
{
sxi32 rc;
#ifdef UNTRUST
if( pLeft == 0 || pRight == 0 ){
return pLeft ? 1 : -1;
}
#endif
if( pLeft->nByte != pRight->nByte ){
/* Length differ */
return pLeft->nByte - pRight->nByte;
}
if( pLeft->nByte == 0 ){
return 0;
}
/* Perform a standard memcmp() operation */
rc = SyMemcmp(pLeft->pBlob,pRight->pBlob,pLeft->nByte);
return rc;
}
PH7_PRIVATE sxi32 SyBlobReset(SyBlob *pBlob)
{
pBlob->nByte = 0;
if( pBlob->nFlags & SXBLOB_RDONLY ){
pBlob->pBlob = 0;
pBlob->mByte = 0;
pBlob->nFlags &= ~SXBLOB_RDONLY;
}
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBlobRelease(SyBlob *pBlob)
{
if( (pBlob->nFlags & (SXBLOB_STATIC|SXBLOB_RDONLY)) == 0 && pBlob->mByte > 0 ){
SyMemBackendFree(pBlob->pAllocator,pBlob->pBlob);
}
pBlob->pBlob = 0;
pBlob->nByte = pBlob->mByte = 0;
pBlob->nFlags = 0;
return SXRET_OK;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE sxi32 SyBlobSearch(const void *pBlob,sxu32 nLen,const void *pPattern,sxu32 pLen,sxu32 *pOfft)
{
const char *zIn = (const char *)pBlob;
const char *zEnd;
sxi32 rc;
if( pLen > nLen ){
return SXERR_NOTFOUND;
}
zEnd = &zIn[nLen-pLen];
for(;;){
if( zIn > zEnd ){break;} SX_MACRO_FAST_CMP(zIn,pPattern,pLen,rc); if( rc == 0 ){ if( pOfft ){ *pOfft = (sxu32)(zIn - (const char *)pBlob);} return SXRET_OK; } zIn++;
if( zIn > zEnd ){break;} SX_MACRO_FAST_CMP(zIn,pPattern,pLen,rc); if( rc == 0 ){ if( pOfft ){ *pOfft = (sxu32)(zIn - (const char *)pBlob);} return SXRET_OK; } zIn++;
if( zIn > zEnd ){break;} SX_MACRO_FAST_CMP(zIn,pPattern,pLen,rc); if( rc == 0 ){ if( pOfft ){ *pOfft = (sxu32)(zIn - (const char *)pBlob);} return SXRET_OK; } zIn++;
if( zIn > zEnd ){break;} SX_MACRO_FAST_CMP(zIn,pPattern,pLen,rc); if( rc == 0 ){ if( pOfft ){ *pOfft = (sxu32)(zIn - (const char *)pBlob);} return SXRET_OK; } zIn++;
}
return SXERR_NOTFOUND;
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
/* SyRunTimeApi:sxds.c */
PH7_PRIVATE sxi32 SySetInit(SySet *pSet,SyMemBackend *pAllocator,sxu32 ElemSize)
{
pSet->nSize = 0 ;
pSet->nUsed = 0;
pSet->nCursor = 0;
pSet->eSize = ElemSize;
pSet->pAllocator = pAllocator;
pSet->pBase = 0;
pSet->pUserData = 0;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SySetPut(SySet *pSet,const void *pItem)
{
unsigned char *zbase;
if( pSet->nUsed >= pSet->nSize ){
void *pNew;
if( pSet->pAllocator == 0 ){
return SXERR_LOCKED;
}
if( pSet->nSize <= 0 ){
pSet->nSize = 4;
}
pNew = SyMemBackendRealloc(pSet->pAllocator,pSet->pBase,pSet->eSize * pSet->nSize * 2);
if( pNew == 0 ){
return SXERR_MEM;
}
pSet->pBase = pNew;
pSet->nSize <<= 1;
}
zbase = (unsigned char *)pSet->pBase;
SX_MACRO_FAST_MEMCPY(pItem,&zbase[pSet->nUsed * pSet->eSize],pSet->eSize);
pSet->nUsed++;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SySetAlloc(SySet *pSet,sxi32 nItem)
{
if( pSet->nSize > 0 ){
return SXERR_LOCKED;
}
if( nItem < 8 ){
nItem = 8;
}
pSet->pBase = SyMemBackendAlloc(pSet->pAllocator,pSet->eSize * nItem);
if( pSet->pBase == 0 ){
return SXERR_MEM;
}
pSet->nSize = nItem;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SySetReset(SySet *pSet)
{
pSet->nUsed = 0;
pSet->nCursor = 0;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SySetResetCursor(SySet *pSet)
{
pSet->nCursor = 0;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SySetGetNextEntry(SySet *pSet,void **ppEntry)
{
register unsigned char *zSrc;
if( pSet->nCursor >= pSet->nUsed ){
/* Reset cursor */
pSet->nCursor = 0;
return SXERR_EOF;
}
zSrc = (unsigned char *)SySetBasePtr(pSet);
if( ppEntry ){
*ppEntry = (void *)&zSrc[pSet->nCursor * pSet->eSize];
}
pSet->nCursor++;
return SXRET_OK;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE void * SySetPeekCurrentEntry(SySet *pSet)
{
register unsigned char *zSrc;
if( pSet->nCursor >= pSet->nUsed ){
return 0;
}
zSrc = (unsigned char *)SySetBasePtr(pSet);
return (void *)&zSrc[pSet->nCursor * pSet->eSize];
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
PH7_PRIVATE sxi32 SySetTruncate(SySet *pSet,sxu32 nNewSize)
{
if( nNewSize < pSet->nUsed ){
pSet->nUsed = nNewSize;
}
return SXRET_OK;
}
PH7_PRIVATE sxi32 SySetRelease(SySet *pSet)
{
sxi32 rc = SXRET_OK;
if( pSet->pAllocator && pSet->pBase ){
rc = SyMemBackendFree(pSet->pAllocator,pSet->pBase);
}
pSet->pBase = 0;
pSet->nUsed = 0;
pSet->nCursor = 0;
return rc;
}
PH7_PRIVATE void * SySetPeek(SySet *pSet)
{
const char *zBase;
if( pSet->nUsed <= 0 ){
return 0;
}
zBase = (const char *)pSet->pBase;
return (void *)&zBase[(pSet->nUsed - 1) * pSet->eSize];
}
PH7_PRIVATE void * SySetPop(SySet *pSet)
{
const char *zBase;
void *pData;
if( pSet->nUsed <= 0 ){
return 0;
}
zBase = (const char *)pSet->pBase;
pSet->nUsed--;
pData = (void *)&zBase[pSet->nUsed * pSet->eSize];
return pData;
}
PH7_PRIVATE void * SySetAt(SySet *pSet,sxu32 nIdx)
{
const char *zBase;
if( nIdx >= pSet->nUsed ){
/* Out of range */
return 0;
}
zBase = (const char *)pSet->pBase;
return (void *)&zBase[nIdx * pSet->eSize];
}
/* Private hash entry */
struct SyHashEntry_Pr
{
const void *pKey; /* Hash key */
sxu32 nKeyLen; /* Key length */
void *pUserData; /* User private data */
/* Private fields */
sxu32 nHash;
SyHash *pHash;
SyHashEntry_Pr *pNext,*pPrev; /* Next and previous entry in the list */
SyHashEntry_Pr *pNextCollide,*pPrevCollide; /* Collision list */
};
#define INVALID_HASH(H) ((H)->apBucket == 0)
/* Forward declarartion */
static sxu32 SyBinHash(const void *pSrc,sxu32 nLen);
PH7_PRIVATE sxi32 SyHashInit(SyHash *pHash,SyMemBackend *pAllocator,ProcHash xHash,ProcCmp xCmp)
{
SyHashEntry_Pr **apNew;
#if defined(UNTRUST)
if( pHash == 0 ){
return SXERR_EMPTY;
}
#endif
/* Allocate a new table */
apNew = (SyHashEntry_Pr **)SyMemBackendAlloc(&(*pAllocator),sizeof(SyHashEntry_Pr *) * SXHASH_BUCKET_SIZE);
if( apNew == 0 ){
return SXERR_MEM;
}
SyZero((void *)apNew,sizeof(SyHashEntry_Pr *) * SXHASH_BUCKET_SIZE);
pHash->pAllocator = &(*pAllocator);
pHash->xHash = xHash ? xHash : SyBinHash;
pHash->xCmp = xCmp ? xCmp : SyMemcmp;
pHash->pCurrent = pHash->pList = 0;
pHash->nEntry = 0;
pHash->apBucket = apNew;
pHash->nBucketSize = SXHASH_BUCKET_SIZE;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyHashRelease(SyHash *pHash)
{
SyHashEntry_Pr *pEntry,*pNext;
#if defined(UNTRUST)
if( INVALID_HASH(pHash) ){
return SXERR_EMPTY;
}
#endif
pEntry = pHash->pList;
for(;;){
if( pHash->nEntry == 0 ){
break;
}
pNext = pEntry->pNext;
SyMemBackendPoolFree(pHash->pAllocator,pEntry);
pEntry = pNext;
pHash->nEntry--;
}
if( pHash->apBucket ){
SyMemBackendFree(pHash->pAllocator,(void *)pHash->apBucket);
}
pHash->apBucket = 0;
pHash->nBucketSize = 0;
pHash->pAllocator = 0;
return SXRET_OK;
}
static SyHashEntry_Pr * HashGetEntry(SyHash *pHash,const void *pKey,sxu32 nKeyLen)
{
SyHashEntry_Pr *pEntry;
sxu32 nHash;
nHash = pHash->xHash(pKey,nKeyLen);
pEntry = pHash->apBucket[nHash & (pHash->nBucketSize - 1)];
for(;;){
if( pEntry == 0 ){
break;
}
if( pEntry->nHash == nHash && pEntry->nKeyLen == nKeyLen &&
pHash->xCmp(pEntry->pKey,pKey,nKeyLen) == 0 ){
return pEntry;
}
pEntry = pEntry->pNextCollide;
}
/* Entry not found */
return 0;
}
PH7_PRIVATE SyHashEntry * SyHashGet(SyHash *pHash,const void *pKey,sxu32 nKeyLen)
{
SyHashEntry_Pr *pEntry;
#if defined(UNTRUST)
if( INVALID_HASH(pHash) ){
return 0;
}
#endif
if( pHash->nEntry < 1 || nKeyLen < 1 ){
/* Don't bother hashing,return immediately */
return 0;
}
pEntry = HashGetEntry(&(*pHash),pKey,nKeyLen);
if( pEntry == 0 ){
return 0;
}
return (SyHashEntry *)pEntry;
}
static sxi32 HashDeleteEntry(SyHash *pHash,SyHashEntry_Pr *pEntry,void **ppUserData)
{
sxi32 rc;
if( pEntry->pPrevCollide == 0 ){
pHash->apBucket[pEntry->nHash & (pHash->nBucketSize - 1)] = pEntry->pNextCollide;
}else{
pEntry->pPrevCollide->pNextCollide = pEntry->pNextCollide;
}
if( pEntry->pNextCollide ){
pEntry->pNextCollide->pPrevCollide = pEntry->pPrevCollide;
}
MACRO_LD_REMOVE(pHash->pList,pEntry);
pHash->nEntry--;
if( ppUserData ){
/* Write a pointer to the user data */
*ppUserData = pEntry->pUserData;
}
/* Release the entry */
rc = SyMemBackendPoolFree(pHash->pAllocator,pEntry);
return rc;
}
PH7_PRIVATE sxi32 SyHashDeleteEntry(SyHash *pHash,const void *pKey,sxu32 nKeyLen,void **ppUserData)
{
SyHashEntry_Pr *pEntry;
sxi32 rc;
#if defined(UNTRUST)
if( INVALID_HASH(pHash) ){
return SXERR_CORRUPT;
}
#endif
pEntry = HashGetEntry(&(*pHash),pKey,nKeyLen);
if( pEntry == 0 ){
return SXERR_NOTFOUND;
}
rc = HashDeleteEntry(&(*pHash),pEntry,ppUserData);
return rc;
}
PH7_PRIVATE sxi32 SyHashDeleteEntry2(SyHashEntry *pEntry)
{
SyHashEntry_Pr *pPtr = (SyHashEntry_Pr *)pEntry;
sxi32 rc;
#if defined(UNTRUST)
if( pPtr == 0 || INVALID_HASH(pPtr->pHash) ){
return SXERR_CORRUPT;
}
#endif
rc = HashDeleteEntry(pPtr->pHash,pPtr,0);
return rc;
}
PH7_PRIVATE sxi32 SyHashResetLoopCursor(SyHash *pHash)
{
#if defined(UNTRUST)
if( INVALID_HASH(pHash) ){
return SXERR_CORRUPT;
}
#endif
pHash->pCurrent = pHash->pList;
return SXRET_OK;
}
PH7_PRIVATE SyHashEntry * SyHashGetNextEntry(SyHash *pHash)
{
SyHashEntry_Pr *pEntry;
#if defined(UNTRUST)
if( INVALID_HASH(pHash) ){
return 0;
}
#endif
if( pHash->pCurrent == 0 || pHash->nEntry <= 0 ){
pHash->pCurrent = pHash->pList;
return 0;
}
pEntry = pHash->pCurrent;
/* Advance the cursor */
pHash->pCurrent = pEntry->pNext;
/* Return the current entry */
return (SyHashEntry *)pEntry;
}
PH7_PRIVATE sxi32 SyHashForEach(SyHash *pHash,sxi32 (*xStep)(SyHashEntry *,void *),void *pUserData)
{
SyHashEntry_Pr *pEntry;
sxi32 rc;
sxu32 n;
#if defined(UNTRUST)
if( INVALID_HASH(pHash) || xStep == 0){
return 0;
}
#endif
pEntry = pHash->pList;
for( n = 0 ; n < pHash->nEntry ; n++ ){
/* Invoke the callback */
rc = xStep((SyHashEntry *)pEntry,pUserData);
if( rc != SXRET_OK ){
return rc;
}
/* Point to the next entry */
pEntry = pEntry->pNext;
}
return SXRET_OK;
}
static sxi32 HashGrowTable(SyHash *pHash)
{
sxu32 nNewSize = pHash->nBucketSize * 2;
SyHashEntry_Pr *pEntry;
SyHashEntry_Pr **apNew;
sxu32 n,iBucket;
/* Allocate a new larger table */
apNew = (SyHashEntry_Pr **)SyMemBackendAlloc(pHash->pAllocator,nNewSize * sizeof(SyHashEntry_Pr *));
if( apNew == 0 ){
/* Not so fatal,simply a performance hit */
return SXRET_OK;
}
/* Zero the new table */
SyZero((void *)apNew,nNewSize * sizeof(SyHashEntry_Pr *));
/* Rehash all entries */
for( n = 0,pEntry = pHash->pList; n < pHash->nEntry ; n++ ){
pEntry->pNextCollide = pEntry->pPrevCollide = 0;
/* Install in the new bucket */
iBucket = pEntry->nHash & (nNewSize - 1);
pEntry->pNextCollide = apNew[iBucket];
if( apNew[iBucket] != 0 ){
apNew[iBucket]->pPrevCollide = pEntry;
}
apNew[iBucket] = pEntry;
/* Point to the next entry */
pEntry = pEntry->pNext;
}
/* Release the old table and reflect the change */
SyMemBackendFree(pHash->pAllocator,(void *)pHash->apBucket);
pHash->apBucket = apNew;
pHash->nBucketSize = nNewSize;
return SXRET_OK;
}
static sxi32 HashInsert(SyHash *pHash,SyHashEntry_Pr *pEntry)
{
sxu32 iBucket = pEntry->nHash & (pHash->nBucketSize - 1);
/* Insert the entry in its corresponding bcuket */
pEntry->pNextCollide = pHash->apBucket[iBucket];
if( pHash->apBucket[iBucket] != 0 ){
pHash->apBucket[iBucket]->pPrevCollide = pEntry;
}
pHash->apBucket[iBucket] = pEntry;
/* Link to the entry list */
MACRO_LD_PUSH(pHash->pList,pEntry);
if( pHash->nEntry == 0 ){
pHash->pCurrent = pHash->pList;
}
pHash->nEntry++;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyHashInsert(SyHash *pHash,const void *pKey,sxu32 nKeyLen,void *pUserData)
{
SyHashEntry_Pr *pEntry;
sxi32 rc;
#if defined(UNTRUST)
if( INVALID_HASH(pHash) || pKey == 0 ){
return SXERR_CORRUPT;
}
#endif
if( pHash->nEntry >= pHash->nBucketSize * SXHASH_FILL_FACTOR ){
rc = HashGrowTable(&(*pHash));
if( rc != SXRET_OK ){
return rc;
}
}
/* Allocate a new hash entry */
pEntry = (SyHashEntry_Pr *)SyMemBackendPoolAlloc(pHash->pAllocator,sizeof(SyHashEntry_Pr));
if( pEntry == 0 ){
return SXERR_MEM;
}
/* Zero the entry */
SyZero(pEntry,sizeof(SyHashEntry_Pr));
pEntry->pHash = pHash;
pEntry->pKey = pKey;
pEntry->nKeyLen = nKeyLen;
pEntry->pUserData = pUserData;
pEntry->nHash = pHash->xHash(pEntry->pKey,pEntry->nKeyLen);
/* Finally insert the entry in its corresponding bucket */
rc = HashInsert(&(*pHash),pEntry);
return rc;
}
PH7_PRIVATE SyHashEntry * SyHashLastEntry(SyHash *pHash)
{
#if defined(UNTRUST)
if( INVALID_HASH(pHash) ){
return 0;
}
#endif
/* Last inserted entry */
return (SyHashEntry *)pHash->pList;
}
/* SyRunTimeApi:sxutils.c */
PH7_PRIVATE sxi32 SyStrIsNumeric(const char *zSrc,sxu32 nLen,sxu8 *pReal,const char **pzTail)
{
const char *zCur,*zEnd;
#ifdef UNTRUST
if( SX_EMPTY_STR(zSrc) ){
return SXERR_EMPTY;
}
#endif
zEnd = &zSrc[nLen];
/* Jump leading white spaces */
while( zSrc < zEnd && (unsigned char)zSrc[0] < 0xc0 && SyisSpace(zSrc[0]) ){
zSrc++;
}
if( zSrc < zEnd && (zSrc[0] == '+' || zSrc[0] == '-') ){
zSrc++;
}
zCur = zSrc;
if( pReal ){
*pReal = FALSE;
}
for(;;){
if( zSrc >= zEnd || (unsigned char)zSrc[0] >= 0xc0 || !SyisDigit(zSrc[0]) ){ break; } zSrc++;
if( zSrc >= zEnd || (unsigned char)zSrc[0] >= 0xc0 || !SyisDigit(zSrc[0]) ){ break; } zSrc++;
if( zSrc >= zEnd || (unsigned char)zSrc[0] >= 0xc0 || !SyisDigit(zSrc[0]) ){ break; } zSrc++;
if( zSrc >= zEnd || (unsigned char)zSrc[0] >= 0xc0 || !SyisDigit(zSrc[0]) ){ break; } zSrc++;
};
if( zSrc < zEnd && zSrc > zCur ){
int c = zSrc[0];
if( c == '.' ){
zSrc++;
if( pReal ){
*pReal = TRUE;
}
if( pzTail ){
while( zSrc < zEnd && (unsigned char)zSrc[0] < 0xc0 && SyisDigit(zSrc[0]) ){
zSrc++;
}
if( zSrc < zEnd && (zSrc[0] == 'e' || zSrc[0] == 'E') ){
zSrc++;
if( zSrc < zEnd && (zSrc[0] == '+' || zSrc[0] == '-') ){
zSrc++;
}
while( zSrc < zEnd && (unsigned char)zSrc[0] < 0xc0 && SyisDigit(zSrc[0]) ){
zSrc++;
}
}
}
}else if( c == 'e' || c == 'E' ){
zSrc++;
if( pReal ){
*pReal = TRUE;
}
if( pzTail ){
if( zSrc < zEnd && (zSrc[0] == '+' || zSrc[0] == '-') ){
zSrc++;
}
while( zSrc < zEnd && (unsigned char)zSrc[0] < 0xc0 && SyisDigit(zSrc[0]) ){
zSrc++;
}
}
}
}
if( pzTail ){
/* Point to the non numeric part */
*pzTail = zSrc;
}
return zSrc > zCur ? SXRET_OK /* String prefix is numeric */ : SXERR_INVALID /* Not a digit stream */;
}
#define SXINT32_MIN_STR "2147483648"
#define SXINT32_MAX_STR "2147483647"
#define SXINT64_MIN_STR "9223372036854775808"
#define SXINT64_MAX_STR "9223372036854775807"
PH7_PRIVATE sxi32 SyStrToInt32(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
int isNeg = FALSE;
const char *zEnd;
sxi32 nVal = 0;
sxi16 i;
#if defined(UNTRUST)
if( SX_EMPTY_STR(zSrc) ){
if( pOutVal ){
*(sxi32 *)pOutVal = 0;
}
return SXERR_EMPTY;
}
#endif
zEnd = &zSrc[nLen];
while(zSrc < zEnd && SyisSpace(zSrc[0]) ){
zSrc++;
}
if( zSrc < zEnd && ( zSrc[0] == '-' || zSrc[0] == '+' ) ){
isNeg = (zSrc[0] == '-') ? TRUE :FALSE;
zSrc++;
}
/* Skip leading zero */
while(zSrc < zEnd && zSrc[0] == '0' ){
zSrc++;
}
i = 10;
if( (sxu32)(zEnd-zSrc) >= 10 ){
/* Handle overflow */
i = SyMemcmp(zSrc,(isNeg == TRUE) ? SXINT32_MIN_STR : SXINT32_MAX_STR,nLen) <= 0 ? 10 : 9;
}
for(;;){
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
}
/* Skip trailing spaces */
while(zSrc < zEnd && SyisSpace(zSrc[0])){
zSrc++;
}
if( zRest ){
*zRest = (char *)zSrc;
}
if( pOutVal ){
if( isNeg == TRUE && nVal != 0 ){
nVal = -nVal;
}
*(sxi32 *)pOutVal = nVal;
}
return (zSrc >= zEnd) ? SXRET_OK : SXERR_SYNTAX;
}
PH7_PRIVATE sxi32 SyStrToInt64(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
int isNeg = FALSE;
const char *zEnd;
sxi64 nVal;
sxi16 i;
#if defined(UNTRUST)
if( SX_EMPTY_STR(zSrc) ){
if( pOutVal ){
*(sxi32 *)pOutVal = 0;
}
return SXERR_EMPTY;
}
#endif
zEnd = &zSrc[nLen];
while(zSrc < zEnd && SyisSpace(zSrc[0]) ){
zSrc++;
}
if( zSrc < zEnd && ( zSrc[0] == '-' || zSrc[0] == '+' ) ){
isNeg = (zSrc[0] == '-') ? TRUE :FALSE;
zSrc++;
}
/* Skip leading zero */
while(zSrc < zEnd && zSrc[0] == '0' ){
zSrc++;
}
i = 19;
if( (sxu32)(zEnd-zSrc) >= 19 ){
i = SyMemcmp(zSrc,isNeg ? SXINT64_MIN_STR : SXINT64_MAX_STR,19) <= 0 ? 19 : 18 ;
}
nVal = 0;
for(;;){
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])){ break; } nVal = nVal * 10 + ( zSrc[0] - '0' ) ; --i ; zSrc++;
}
/* Skip trailing spaces */
while(zSrc < zEnd && SyisSpace(zSrc[0])){
zSrc++;
}
if( zRest ){
*zRest = (char *)zSrc;
}
if( pOutVal ){
if( isNeg == TRUE && nVal != 0 ){
nVal = -nVal;
}
*(sxi64 *)pOutVal = nVal;
}
return (zSrc >= zEnd) ? SXRET_OK : SXERR_SYNTAX;
}
PH7_PRIVATE sxi32 SyHexToint(sxi32 c)
{
switch(c){
case '0': return 0;
case '1': return 1;
case '2': return 2;
case '3': return 3;
case '4': return 4;
case '5': return 5;
case '6': return 6;
case '7': return 7;
case '8': return 8;
case '9': return 9;
case 'A': case 'a': return 10;
case 'B': case 'b': return 11;
case 'C': case 'c': return 12;
case 'D': case 'd': return 13;
case 'E': case 'e': return 14;
case 'F': case 'f': return 15;
}
return -1;
}
PH7_PRIVATE sxi32 SyHexStrToInt64(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
const char *zIn,*zEnd;
int isNeg = FALSE;
sxi64 nVal = 0;
#if defined(UNTRUST)
if( SX_EMPTY_STR(zSrc) ){
if( pOutVal ){
*(sxi32 *)pOutVal = 0;
}
return SXERR_EMPTY;
}
#endif
zEnd = &zSrc[nLen];
while( zSrc < zEnd && SyisSpace(zSrc[0]) ){
zSrc++;
}
if( zSrc < zEnd && ( *zSrc == '-' || *zSrc == '+' ) ){
isNeg = (zSrc[0] == '-') ? TRUE :FALSE;
zSrc++;
}
if( zSrc < &zEnd[-2] && zSrc[0] == '0' && (zSrc[1] == 'x' || zSrc[1] == 'X') ){
/* Bypass hex prefix */
zSrc += sizeof(char) * 2;
}
/* Skip leading zero */
while(zSrc < zEnd && zSrc[0] == '0' ){
zSrc++;
}
zIn = zSrc;
for(;;){
if(zSrc >= zEnd || !SyisHex(zSrc[0]) || (int)(zSrc-zIn) > 15) break; nVal = nVal * 16 + SyHexToint(zSrc[0]); zSrc++ ;
if(zSrc >= zEnd || !SyisHex(zSrc[0]) || (int)(zSrc-zIn) > 15) break; nVal = nVal * 16 + SyHexToint(zSrc[0]); zSrc++ ;
if(zSrc >= zEnd || !SyisHex(zSrc[0]) || (int)(zSrc-zIn) > 15) break; nVal = nVal * 16 + SyHexToint(zSrc[0]); zSrc++ ;
if(zSrc >= zEnd || !SyisHex(zSrc[0]) || (int)(zSrc-zIn) > 15) break; nVal = nVal * 16 + SyHexToint(zSrc[0]); zSrc++ ;
}
while( zSrc < zEnd && SyisSpace(zSrc[0]) ){
zSrc++;
}
if( zRest ){
*zRest = zSrc;
}
if( pOutVal ){
if( isNeg == TRUE && nVal != 0 ){
nVal = -nVal;
}
*(sxi64 *)pOutVal = nVal;
}
return zSrc >= zEnd ? SXRET_OK : SXERR_SYNTAX;
}
PH7_PRIVATE sxi32 SyOctalStrToInt64(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
const char *zIn,*zEnd;
int isNeg = FALSE;
sxi64 nVal = 0;
int c;
#if defined(UNTRUST)
if( SX_EMPTY_STR(zSrc) ){
if( pOutVal ){
*(sxi32 *)pOutVal = 0;
}
return SXERR_EMPTY;
}
#endif
zEnd = &zSrc[nLen];
while(zSrc < zEnd && SyisSpace(zSrc[0]) ){
zSrc++;
}
if( zSrc < zEnd && ( zSrc[0] == '-' || zSrc[0] == '+' ) ){
isNeg = (zSrc[0] == '-') ? TRUE :FALSE;
zSrc++;
}
/* Skip leading zero */
while(zSrc < zEnd && zSrc[0] == '0' ){
zSrc++;
}
zIn = zSrc;
for(;;){
if(zSrc >= zEnd || !SyisDigit(zSrc[0])){ break; } if( (c=zSrc[0]-'0') > 7 || (int)(zSrc-zIn) > 20){ break;} nVal = nVal * 8 + c; zSrc++;
if(zSrc >= zEnd || !SyisDigit(zSrc[0])){ break; } if( (c=zSrc[0]-'0') > 7 || (int)(zSrc-zIn) > 20){ break;} nVal = nVal * 8 + c; zSrc++;
if(zSrc >= zEnd || !SyisDigit(zSrc[0])){ break; } if( (c=zSrc[0]-'0') > 7 || (int)(zSrc-zIn) > 20){ break;} nVal = nVal * 8 + c; zSrc++;
if(zSrc >= zEnd || !SyisDigit(zSrc[0])){ break; } if( (c=zSrc[0]-'0') > 7 || (int)(zSrc-zIn) > 20){ break;} nVal = nVal * 8 + c; zSrc++;
}
/* Skip trailing spaces */
while(zSrc < zEnd && SyisSpace(zSrc[0])){
zSrc++;
}
if( zRest ){
*zRest = zSrc;
}
if( pOutVal ){
if( isNeg == TRUE && nVal != 0 ){
nVal = -nVal;
}
*(sxi64 *)pOutVal = nVal;
}
return (zSrc >= zEnd) ? SXRET_OK : SXERR_SYNTAX;
}
PH7_PRIVATE sxi32 SyBinaryStrToInt64(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
const char *zIn,*zEnd;
int isNeg = FALSE;
sxi64 nVal = 0;
int c;
#if defined(UNTRUST)
if( SX_EMPTY_STR(zSrc) ){
if( pOutVal ){
*(sxi32 *)pOutVal = 0;
}
return SXERR_EMPTY;
}
#endif
zEnd = &zSrc[nLen];
while(zSrc < zEnd && SyisSpace(zSrc[0]) ){
zSrc++;
}
if( zSrc < zEnd && ( zSrc[0] == '-' || zSrc[0] == '+' ) ){
isNeg = (zSrc[0] == '-') ? TRUE :FALSE;
zSrc++;
}
if( zSrc < &zEnd[-2] && zSrc[0] == '0' && (zSrc[1] == 'b' || zSrc[1] == 'B') ){
/* Bypass binary prefix */
zSrc += sizeof(char) * 2;
}
/* Skip leading zero */
while(zSrc < zEnd && zSrc[0] == '0' ){
zSrc++;
}
zIn = zSrc;
for(;;){
if(zSrc >= zEnd || (zSrc[0] != '1' && zSrc[0] != '0') || (int)(zSrc-zIn) > 62){ break; } c = zSrc[0] - '0'; nVal = (nVal << 1) + c; zSrc++;
if(zSrc >= zEnd || (zSrc[0] != '1' && zSrc[0] != '0') || (int)(zSrc-zIn) > 62){ break; } c = zSrc[0] - '0'; nVal = (nVal << 1) + c; zSrc++;
if(zSrc >= zEnd || (zSrc[0] != '1' && zSrc[0] != '0') || (int)(zSrc-zIn) > 62){ break; } c = zSrc[0] - '0'; nVal = (nVal << 1) + c; zSrc++;
if(zSrc >= zEnd || (zSrc[0] != '1' && zSrc[0] != '0') || (int)(zSrc-zIn) > 62){ break; } c = zSrc[0] - '0'; nVal = (nVal << 1) + c; zSrc++;
}
/* Skip trailing spaces */
while(zSrc < zEnd && SyisSpace(zSrc[0])){
zSrc++;
}
if( zRest ){
*zRest = zSrc;
}
if( pOutVal ){
if( isNeg == TRUE && nVal != 0 ){
nVal = -nVal;
}
*(sxi64 *)pOutVal = nVal;
}
return (zSrc >= zEnd) ? SXRET_OK : SXERR_SYNTAX;
}
PH7_PRIVATE sxi32 SyStrToReal(const char *zSrc,sxu32 nLen,void * pOutVal,const char **zRest)
{
#define SXDBL_DIG 15
#define SXDBL_MAX_EXP 308
#define SXDBL_MIN_EXP_PLUS 307
static const sxreal aTab[] = {
10,
1.0e2,
1.0e4,
1.0e8,
1.0e16,
1.0e32,
1.0e64,
1.0e128,
1.0e256
};
sxu8 neg = FALSE;
sxreal Val = 0.0;
const char *zEnd;
sxi32 Lim,exp;
sxreal *p = 0;
#ifdef UNTRUST
if( SX_EMPTY_STR(zSrc) ){
if( pOutVal ){
*(sxreal *)pOutVal = 0.0;
}
return SXERR_EMPTY;
}
#endif
zEnd = &zSrc[nLen];
while( zSrc < zEnd && SyisSpace(zSrc[0]) ){
zSrc++;
}
if( zSrc < zEnd && (zSrc[0] == '-' || zSrc[0] == '+' ) ){
neg = zSrc[0] == '-' ? TRUE : FALSE ;
zSrc++;
}
Lim = SXDBL_DIG ;
for(;;){
if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; zSrc++ ; --Lim;
if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; zSrc++ ; --Lim;
if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; zSrc++ ; --Lim;
if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; zSrc++ ; --Lim;
}
if( zSrc < zEnd && ( zSrc[0] == '.' || zSrc[0] == ',' ) ){
sxreal dec = 1.0;
zSrc++;
for(;;){
if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; dec *= 10.0; zSrc++ ;--Lim;
if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; dec *= 10.0; zSrc++ ;--Lim;
if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; dec *= 10.0; zSrc++ ;--Lim;
if(zSrc >= zEnd||!Lim||!SyisDigit(zSrc[0])) break ; Val = Val * 10.0 + (zSrc[0] - '0') ; dec *= 10.0; zSrc++ ;--Lim;
}
Val /= dec;
}
if( neg == TRUE && Val != 0.0 ) {
Val = -Val ;
}
if( Lim <= 0 ){
/* jump overflow digit */
while( zSrc < zEnd ){
if( zSrc[0] == 'e' || zSrc[0] == 'E' ){
break;
}
zSrc++;
}
}
neg = FALSE;
if( zSrc < zEnd && ( zSrc[0] == 'e' || zSrc[0] == 'E' ) ){
zSrc++;
if( zSrc < zEnd && ( zSrc[0] == '-' || zSrc[0] == '+') ){
neg = zSrc[0] == '-' ? TRUE : FALSE ;
zSrc++;
}
exp = 0;
while( zSrc < zEnd && SyisDigit(zSrc[0]) && exp < SXDBL_MAX_EXP ){
exp = exp * 10 + (zSrc[0] - '0');
zSrc++;
}
if( neg ){
if( exp > SXDBL_MIN_EXP_PLUS ) exp = SXDBL_MIN_EXP_PLUS ;
}else if ( exp > SXDBL_MAX_EXP ){
exp = SXDBL_MAX_EXP;
}
for( p = (sxreal *)aTab ; exp ; exp >>= 1 , p++ ){
if( exp & 01 ){
if( neg ){
Val /= *p ;
}else{
Val *= *p;
}
}
}
}
while( zSrc < zEnd && SyisSpace(zSrc[0]) ){
zSrc++;
}
if( zRest ){
*zRest = zSrc;
}
if( pOutVal ){
*(sxreal *)pOutVal = Val;
}
return zSrc >= zEnd ? SXRET_OK : SXERR_SYNTAX;
}
/* SyRunTimeApi:sxlib.c */
static sxu32 SyBinHash(const void *pSrc,sxu32 nLen)
{
register unsigned char *zIn = (unsigned char *)pSrc;
unsigned char *zEnd;
sxu32 nH = 5381;
zEnd = &zIn[nLen];
for(;;){
if( zIn >= zEnd ){ break; } nH = nH * 33 + zIn[0] ; zIn++;
if( zIn >= zEnd ){ break; } nH = nH * 33 + zIn[0] ; zIn++;
if( zIn >= zEnd ){ break; } nH = nH * 33 + zIn[0] ; zIn++;
if( zIn >= zEnd ){ break; } nH = nH * 33 + zIn[0] ; zIn++;
}
return nH;
}
PH7_PRIVATE sxu32 SyStrHash(const void *pSrc,sxu32 nLen)
{
register unsigned char *zIn = (unsigned char *)pSrc;
unsigned char *zEnd;
sxu32 nH = 5381;
zEnd = &zIn[nLen];
for(;;){
if( zIn >= zEnd ){ break; } nH = nH * 33 + SyToLower(zIn[0]); zIn++;
if( zIn >= zEnd ){ break; } nH = nH * 33 + SyToLower(zIn[0]); zIn++;
if( zIn >= zEnd ){ break; } nH = nH * 33 + SyToLower(zIn[0]); zIn++;
if( zIn >= zEnd ){ break; } nH = nH * 33 + SyToLower(zIn[0]); zIn++;
}
return nH;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE sxi32 SyBase64Encode(const char *zSrc,sxu32 nLen,ProcConsumer xConsumer,void *pUserData)
{
static const unsigned char zBase64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
unsigned char *zIn = (unsigned char *)zSrc;
unsigned char z64[4];
sxu32 i;
sxi32 rc;
#if defined(UNTRUST)
if( SX_EMPTY_STR(zSrc) || xConsumer == 0){
return SXERR_EMPTY;
}
#endif
for(i = 0; i + 2 < nLen; i += 3){
z64[0] = zBase64[(zIn[i] >> 2) & 0x3F];
z64[1] = zBase64[( ((zIn[i] & 0x03) << 4) | (zIn[i+1] >> 4)) & 0x3F];
z64[2] = zBase64[( ((zIn[i+1] & 0x0F) << 2) | (zIn[i + 2] >> 6) ) & 0x3F];
z64[3] = zBase64[ zIn[i + 2] & 0x3F];
rc = xConsumer((const void *)z64,sizeof(z64),pUserData);
if( rc != SXRET_OK ){return SXERR_ABORT;}
}
if ( i+1 < nLen ){
z64[0] = zBase64[(zIn[i] >> 2) & 0x3F];
z64[1] = zBase64[( ((zIn[i] & 0x03) << 4) | (zIn[i+1] >> 4)) & 0x3F];
z64[2] = zBase64[(zIn[i+1] & 0x0F) << 2 ];
z64[3] = '=';
rc = xConsumer((const void *)z64,sizeof(z64),pUserData);
if( rc != SXRET_OK ){return SXERR_ABORT;}
}else if( i < nLen ){
z64[0] = zBase64[(zIn[i] >> 2) & 0x3F];
z64[1] = zBase64[(zIn[i] & 0x03) << 4];
z64[2] = '=';
z64[3] = '=';
rc = xConsumer((const void *)z64,sizeof(z64),pUserData);
if( rc != SXRET_OK ){return SXERR_ABORT;}
}
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyBase64Decode(const char *zB64,sxu32 nLen,ProcConsumer xConsumer,void *pUserData)
{
static const sxu32 aBase64Trans[] = {
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,62,0,0,0,63,52,53,54,55,56,57,58,59,60,61,0,0,0,0,0,0,0,0,1,2,3,4,
5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,0,0,0,0,0,0,26,27,
28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,0,0,
0,0,0
};
sxu32 n,w,x,y,z;
sxi32 rc;
unsigned char zOut[10];
#if defined(UNTRUST)
if( SX_EMPTY_STR(zB64) || xConsumer == 0 ){
return SXERR_EMPTY;
}
#endif
while(nLen > 0 && zB64[nLen - 1] == '=' ){
nLen--;
}
for( n = 0 ; n+3<nLen ; n += 4){
w = aBase64Trans[zB64[n] & 0x7F];
x = aBase64Trans[zB64[n+1] & 0x7F];
y = aBase64Trans[zB64[n+2] & 0x7F];
z = aBase64Trans[zB64[n+3] & 0x7F];
zOut[0] = ((w<<2) & 0xFC) | ((x>>4) & 0x03);
zOut[1] = ((x<<4) & 0xF0) | ((y>>2) & 0x0F);
zOut[2] = ((y<<6) & 0xC0) | (z & 0x3F);
rc = xConsumer((const void *)zOut,sizeof(unsigned char)*3,pUserData);
if( rc != SXRET_OK ){ return SXERR_ABORT;}
}
if( n+2 < nLen ){
w = aBase64Trans[zB64[n] & 0x7F];
x = aBase64Trans[zB64[n+1] & 0x7F];
y = aBase64Trans[zB64[n+2] & 0x7F];
zOut[0] = ((w<<2) & 0xFC) | ((x>>4) & 0x03);
zOut[1] = ((x<<4) & 0xF0) | ((y>>2) & 0x0F);
rc = xConsumer((const void *)zOut,sizeof(unsigned char)*2,pUserData);
if( rc != SXRET_OK ){ return SXERR_ABORT;}
}else if( n+1 < nLen ){
w = aBase64Trans[zB64[n] & 0x7F];
x = aBase64Trans[zB64[n+1] & 0x7F];
zOut[0] = ((w<<2) & 0xFC) | ((x>>4) & 0x03);
rc = xConsumer((const void *)zOut,sizeof(unsigned char)*1,pUserData);
if( rc != SXRET_OK ){ return SXERR_ABORT;}
}
return SXRET_OK;
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
#define INVALID_LEXER(LEX) ( LEX == 0 || LEX->xTokenizer == 0 )
PH7_PRIVATE sxi32 SyLexInit(SyLex *pLex,SySet *pSet,ProcTokenizer xTokenizer,void *pUserData)
{
SyStream *pStream;
#if defined (UNTRUST)
if ( pLex == 0 || xTokenizer == 0 ){
return SXERR_CORRUPT;
}
#endif
pLex->pTokenSet = 0;
/* Initialize lexer fields */
if( pSet ){
if ( SySetElemSize(pSet) != sizeof(SyToken) ){
return SXERR_INVALID;
}
pLex->pTokenSet = pSet;
}
pStream = &pLex->sStream;
pLex->xTokenizer = xTokenizer;
pLex->pUserData = pUserData;
pStream->nLine = 1;
pStream->nIgn = 0;
pStream->zText = pStream->zEnd = 0;
pStream->pSet = pSet;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyLexTokenizeInput(SyLex *pLex,const char *zInput,sxu32 nLen,void *pCtxData,ProcSort xSort,ProcCmp xCmp)
{
const unsigned char *zCur;
SyStream *pStream;
SyToken sToken;
sxi32 rc;
#if defined (UNTRUST)
if ( INVALID_LEXER(pLex) || zInput == 0 ){
return SXERR_CORRUPT;
}
#endif
pStream = &pLex->sStream;
/* Point to the head of the input */
pStream->zText = pStream->zInput = (const unsigned char *)zInput;
/* Point to the end of the input */
pStream->zEnd = &pStream->zInput[nLen];
for(;;){
if( pStream->zText >= pStream->zEnd ){
/* End of the input reached */
break;
}
zCur = pStream->zText;
/* Call the tokenizer callback */
rc = pLex->xTokenizer(pStream,&sToken,pLex->pUserData,pCtxData);
if( rc != SXRET_OK && rc != SXERR_CONTINUE ){
/* Tokenizer callback request an operation abort */
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
break;
}
if( rc == SXERR_CONTINUE ){
/* Request to ignore this token */
pStream->nIgn++;
}else if( pLex->pTokenSet ){
/* Put the token in the set */
rc = SySetPut(pLex->pTokenSet,(const void *)&sToken);
if( rc != SXRET_OK ){
break;
}
}
if( zCur >= pStream->zText ){
/* Automatic advance of the stream cursor */
pStream->zText = &zCur[1];
}
}
if( xSort && pLex->pTokenSet ){
SyToken *aToken = (SyToken *)SySetBasePtr(pLex->pTokenSet);
/* Sort the extrated tokens */
if( xCmp == 0 ){
/* Use a default comparison function */
xCmp = SyMemcmp;
}
xSort(aToken,SySetUsed(pLex->pTokenSet),sizeof(SyToken),xCmp);
}
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyLexRelease(SyLex *pLex)
{
sxi32 rc = SXRET_OK;
#if defined (UNTRUST)
if ( INVALID_LEXER(pLex) ){
return SXERR_CORRUPT;
}
#else
SXUNUSED(pLex); /* Prevent compiler warning */
#endif
return rc;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
#define SAFE_HTTP(C) (SyisAlphaNum(c) || c == '_' || c == '-' || c == '$' || c == '.' )
PH7_PRIVATE sxi32 SyUriEncode(const char *zSrc,sxu32 nLen,ProcConsumer xConsumer,void *pUserData)
{
unsigned char *zIn = (unsigned char *)zSrc;
unsigned char zHex[3] = { '%',0,0 };
unsigned char zOut[2];
unsigned char *zCur,*zEnd;
sxi32 c;
sxi32 rc;
#ifdef UNTRUST
if( SX_EMPTY_STR(zSrc) || xConsumer == 0 ){
return SXERR_EMPTY;
}
#endif
rc = SXRET_OK;
zEnd = &zIn[nLen]; zCur = zIn;
for(;;){
if( zCur >= zEnd ){
if( zCur != zIn ){
rc = xConsumer(zIn,(sxu32)(zCur-zIn),pUserData);
}
break;
}
c = zCur[0];
if( SAFE_HTTP(c) ){
zCur++; continue;
}
if( zCur != zIn && SXRET_OK != (rc = xConsumer(zIn,(sxu32)(zCur-zIn),pUserData))){
break;
}
if( c == ' ' ){
zOut[0] = '+';
rc = xConsumer((const void *)zOut,sizeof(unsigned char),pUserData);
}else{
zHex[1] = "0123456789ABCDEF"[(c >> 4) & 0x0F];
zHex[2] = "0123456789ABCDEF"[c & 0x0F];
rc = xConsumer(zHex,sizeof(zHex),pUserData);
}
if( SXRET_OK != rc ){
break;
}
zIn = &zCur[1]; zCur = zIn ;
}
return rc == SXRET_OK ? SXRET_OK : SXERR_ABORT;
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
static sxi32 SyAsciiToHex(sxi32 c)
{
if( c >= 'a' && c <= 'f' ){
c += 10 - 'a';
return c;
}
if( c >= '0' && c <= '9' ){
c -= '0';
return c;
}
if( c >= 'A' && c <= 'F') {
c += 10 - 'A';
return c;
}
return 0;
}
PH7_PRIVATE sxi32 SyUriDecode(const char *zSrc,sxu32 nLen,ProcConsumer xConsumer,void *pUserData,int bUTF8)
{
static const sxu8 Utf8Trans[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x00, 0x00
};
const char *zIn = zSrc;
const char *zEnd;
const char *zCur;
sxu8 *zOutPtr;
sxu8 zOut[10];
sxi32 c,d;
sxi32 rc;
#if defined(UNTRUST)
if( SX_EMPTY_STR(zSrc) || xConsumer == 0 ){
return SXERR_EMPTY;
}
#endif
rc = SXRET_OK;
zEnd = &zSrc[nLen];
zCur = zIn;
for(;;){
while(zCur < zEnd && zCur[0] != '%' && zCur[0] != '+' ){
zCur++;
}
if( zCur != zIn ){
/* Consume input */
rc = xConsumer(zIn,(unsigned int)(zCur-zIn),pUserData);
if( rc != SXRET_OK ){
/* User consumer routine request an operation abort */
break;
}
}
if( zCur >= zEnd ){
rc = SXRET_OK;
break;
}
/* Decode unsafe HTTP characters */
zOutPtr = zOut;
if( zCur[0] == '+' ){
*zOutPtr++ = ' ';
zCur++;
}else{
if( &zCur[2] >= zEnd ){
rc = SXERR_OVERFLOW;
break;
}
c = (SyAsciiToHex(zCur[1]) <<4) | SyAsciiToHex(zCur[2]);
zCur += 3;
if( c < 0x000C0 ){
*zOutPtr++ = (sxu8)c;
}else{
c = Utf8Trans[c-0xC0];
while( zCur[0] == '%' ){
d = (SyAsciiToHex(zCur[1]) <<4) | SyAsciiToHex(zCur[2]);
if( (d&0xC0) != 0x80 ){
break;
}
c = (c<<6) + (0x3f & d);
zCur += 3;
}
if( bUTF8 == FALSE ){
*zOutPtr++ = (sxu8)c;
}else{
SX_WRITE_UTF8(zOutPtr,c);
}
}
}
/* Consume the decoded characters */
rc = xConsumer((const void *)zOut,(unsigned int)(zOutPtr-zOut),pUserData);
if( rc != SXRET_OK ){
break;
}
/* Synchronize pointers */
zIn = zCur;
}
return rc;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
static const char *zEngDay[] = {
"Sunday","Monday","Tuesday","Wednesday",
"Thursday","Friday","Saturday"
};
static const char *zEngMonth[] = {
"January","February","March","April",
"May","June","July","August",
"September","October","November","December"
};
static const char * GetDay(sxi32 i)
{
return zEngDay[ i % 7 ];
}
static const char * GetMonth(sxi32 i)
{
return zEngMonth[ i % 12 ];
}
PH7_PRIVATE const char * SyTimeGetDay(sxi32 iDay)
{
return GetDay(iDay);
}
PH7_PRIVATE const char * SyTimeGetMonth(sxi32 iMonth)
{
return GetMonth(iMonth);
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
/* SyRunTimeApi: sxfmt.c */
#define SXFMT_BUFSIZ 1024 /* Conversion buffer size */
/*
** Conversion types fall into various categories as defined by the
** following enumeration.
*/
#define SXFMT_RADIX 1 /* Integer types.%d, %x, %o, and so forth */
#define SXFMT_FLOAT 2 /* Floating point.%f */
#define SXFMT_EXP 3 /* Exponentional notation.%e and %E */
#define SXFMT_GENERIC 4 /* Floating or exponential, depending on exponent.%g */
#define SXFMT_SIZE 5 /* Total number of characters processed so far.%n */
#define SXFMT_STRING 6 /* Strings.%s */
#define SXFMT_PERCENT 7 /* Percent symbol.%% */
#define SXFMT_CHARX 8 /* Characters.%c */
#define SXFMT_ERROR 9 /* Used to indicate no such conversion type */
/* Extension by Symisc Systems */
#define SXFMT_RAWSTR 13 /* %z Pointer to raw string (SyString *) */
#define SXFMT_UNUSED 15
/*
** Allowed values for SyFmtInfo.flags
*/
#define SXFLAG_SIGNED 0x01
#define SXFLAG_UNSIGNED 0x02
/* Allowed values for SyFmtConsumer.nType */
#define SXFMT_CONS_PROC 1 /* Consumer is a procedure */
#define SXFMT_CONS_STR 2 /* Consumer is a managed string */
#define SXFMT_CONS_FILE 5 /* Consumer is an open File */
#define SXFMT_CONS_BLOB 6 /* Consumer is a BLOB */
/*
** Each builtin conversion character (ex: the 'd' in "%d") is described
** by an instance of the following structure
*/
typedef struct SyFmtInfo SyFmtInfo;
struct SyFmtInfo
{
char fmttype; /* The format field code letter [i.e: 'd','s','x'] */
sxu8 base; /* The base for radix conversion */
int flags; /* One or more of SXFLAG_ constants below */
sxu8 type; /* Conversion paradigm */
char *charset; /* The character set for conversion */
char *prefix; /* Prefix on non-zero values in alt format */
};
typedef struct SyFmtConsumer SyFmtConsumer;
struct SyFmtConsumer
{
sxu32 nLen; /* Total output length */
sxi32 nType; /* Type of the consumer see below */
sxi32 rc; /* Consumer return value;Abort processing if rc != SXRET_OK */
union{
struct{
ProcConsumer xUserConsumer;
void *pUserData;
}sFunc;
SyBlob *pBlob;
}uConsumer;
};
#ifndef SX_OMIT_FLOATINGPOINT
static int getdigit(sxlongreal *val,int *cnt)
{
sxlongreal d;
int digit;
if( (*cnt)++ >= 16 ){
return '0';
}
digit = (int)*val;
d = digit;
*val = (*val - d)*10.0;
return digit + '0' ;
}
#endif /* SX_OMIT_FLOATINGPOINT */
/*
* The following routine was taken from the SQLITE2 source tree and was
* extended by Symisc Systems to fit its need.
* Status: Public Domain
*/
static sxi32 InternFormat(ProcConsumer xConsumer,void *pUserData,const char *zFormat,va_list ap)
{
/*
* The following table is searched linearly, so it is good to put the most frequently
* used conversion types first.
*/
static const SyFmtInfo aFmt[] = {
{ 'd', 10, SXFLAG_SIGNED, SXFMT_RADIX, "0123456789",0 },
{ 's', 0, 0, SXFMT_STRING, 0, 0 },
{ 'c', 0, 0, SXFMT_CHARX, 0, 0 },
{ 'x', 16, 0, SXFMT_RADIX, "0123456789abcdef", "x0" },
{ 'X', 16, 0, SXFMT_RADIX, "0123456789ABCDEF", "X0" },
/* -- Extensions by Symisc Systems -- */
{ 'z', 0, 0, SXFMT_RAWSTR, 0, 0 }, /* Pointer to a raw string (SyString *) */
{ 'B', 2, 0, SXFMT_RADIX, "01", "b0"},
/* -- End of Extensions -- */
{ 'o', 8, 0, SXFMT_RADIX, "01234567", "0" },
{ 'u', 10, 0, SXFMT_RADIX, "0123456789", 0 },
#ifndef SX_OMIT_FLOATINGPOINT
{ 'f', 0, SXFLAG_SIGNED, SXFMT_FLOAT, 0, 0 },
{ 'e', 0, SXFLAG_SIGNED, SXFMT_EXP, "e", 0 },
{ 'E', 0, SXFLAG_SIGNED, SXFMT_EXP, "E", 0 },
{ 'g', 0, SXFLAG_SIGNED, SXFMT_GENERIC, "e", 0 },
{ 'G', 0, SXFLAG_SIGNED, SXFMT_GENERIC, "E", 0 },
#endif
{ 'i', 10, SXFLAG_SIGNED, SXFMT_RADIX,"0123456789", 0 },
{ 'n', 0, 0, SXFMT_SIZE, 0, 0 },
{ '%', 0, 0, SXFMT_PERCENT, 0, 0 },
{ 'p', 10, 0, SXFMT_RADIX, "0123456789", 0 }
};
int c; /* Next character in the format string */
char *bufpt; /* Pointer to the conversion buffer */
int precision; /* Precision of the current field */
int length; /* Length of the field */
int idx; /* A general purpose loop counter */
int width; /* Width of the current field */
sxu8 flag_leftjustify; /* True if "-" flag is present */
sxu8 flag_plussign; /* True if "+" flag is present */
sxu8 flag_blanksign; /* True if " " flag is present */
sxu8 flag_alternateform; /* True if "#" flag is present */
sxu8 flag_zeropad; /* True if field width constant starts with zero */
sxu8 flag_long; /* True if "l" flag is present */
sxi64 longvalue; /* Value for integer types */
const SyFmtInfo *infop; /* Pointer to the appropriate info structure */
char buf[SXFMT_BUFSIZ]; /* Conversion buffer */
char prefix; /* Prefix character."+" or "-" or " " or '\0'.*/
sxu8 errorflag = 0; /* True if an error is encountered */
sxu8 xtype; /* Conversion paradigm */
char *zExtra;
static char spaces[] = " ";
#define etSPACESIZE ((int)sizeof(spaces)-1)
#ifndef SX_OMIT_FLOATINGPOINT
sxlongreal realvalue; /* Value for real types */
int exp; /* exponent of real numbers */
double rounder; /* Used for rounding floating point values */
sxu8 flag_dp; /* True if decimal point should be shown */
sxu8 flag_rtz; /* True if trailing zeros should be removed */
sxu8 flag_exp; /* True to force display of the exponent */
int nsd; /* Number of significant digits returned */
#endif
int rc;
length = 0;
bufpt = 0;
for(; (c=(*zFormat))!=0; ++zFormat){
if( c!='%' ){
unsigned int amt;
bufpt = (char *)zFormat;
amt = 1;
while( (c=(*++zFormat))!='%' && c!=0 ) amt++;
rc = xConsumer((const void *)bufpt,amt,pUserData);
if( rc != SXRET_OK ){
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
if( c==0 ){
return errorflag > 0 ? SXERR_FORMAT : SXRET_OK;
}
}
if( (c=(*++zFormat))==0 ){
errorflag = 1;
rc = xConsumer("%",sizeof("%")-1,pUserData);
if( rc != SXRET_OK ){
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
return errorflag > 0 ? SXERR_FORMAT : SXRET_OK;
}
/* Find out what flags are present */
flag_leftjustify = flag_plussign = flag_blanksign =
flag_alternateform = flag_zeropad = 0;
do{
switch( c ){
case '-': flag_leftjustify = 1; c = 0; break;
case '+': flag_plussign = 1; c = 0; break;
case ' ': flag_blanksign = 1; c = 0; break;
case '#': flag_alternateform = 1; c = 0; break;
case '0': flag_zeropad = 1; c = 0; break;
default: break;
}
}while( c==0 && (c=(*++zFormat))!=0 );
/* Get the field width */
width = 0;
if( c=='*' ){
width = va_arg(ap,int);
if( width<0 ){
flag_leftjustify = 1;
width = -width;
}
c = *++zFormat;
}else{
while( c>='0' && c<='9' ){
width = width*10 + c - '0';
c = *++zFormat;
}
}
if( width > SXFMT_BUFSIZ-10 ){
width = SXFMT_BUFSIZ-10;
}
/* Get the precision */
precision = -1;
if( c=='.' ){
precision = 0;
c = *++zFormat;
if( c=='*' ){
precision = va_arg(ap,int);
if( precision<0 ) precision = -precision;
c = *++zFormat;
}else{
while( c>='0' && c<='9' ){
precision = precision*10 + c - '0';
c = *++zFormat;
}
}
}
/* Get the conversion type modifier */
flag_long = 0;
if( c=='l' || c == 'q' /* BSD quad (expect a 64-bit integer) */ ){
flag_long = (c == 'q') ? 2 : 1;
c = *++zFormat;
if( c == 'l' ){
/* Standard printf emulation 'lld' (expect a 64bit integer) */
flag_long = 2;
}
}
/* Fetch the info entry for the field */
infop = 0;
xtype = SXFMT_ERROR;
for(idx=0; idx< (int)SX_ARRAYSIZE(aFmt); idx++){
if( c==aFmt[idx].fmttype ){
infop = &aFmt[idx];
xtype = infop->type;
break;
}
}
zExtra = 0;
/*
** At this point, variables are initialized as follows:
**
** flag_alternateform TRUE if a '#' is present.
** flag_plussign TRUE if a '+' is present.
** flag_leftjustify TRUE if a '-' is present or if the
** field width was negative.
** flag_zeropad TRUE if the width began with 0.
** flag_long TRUE if the letter 'l' (ell) or 'q'(BSD quad) prefixed
** the conversion character.
** flag_blanksign TRUE if a ' ' is present.
** width The specified field width.This is
** always non-negative.Zero is the default.
** precision The specified precision.The default
** is -1.
** xtype The class of the conversion.
** infop Pointer to the appropriate info struct.
*/
switch( xtype ){
case SXFMT_RADIX:
if( flag_long > 0 ){
if( flag_long > 1 ){
/* BSD quad: expect a 64-bit integer */
longvalue = va_arg(ap,sxi64);
}else{
longvalue = va_arg(ap,sxlong);
}
}else{
if( infop->flags & SXFLAG_SIGNED ){
longvalue = va_arg(ap,sxi32);
}else{
longvalue = va_arg(ap,sxu32);
}
}
/* Limit the precision to prevent overflowing buf[] during conversion */
if( precision>SXFMT_BUFSIZ-40 ) precision = SXFMT_BUFSIZ-40;
#if 1
/* For the format %#x, the value zero is printed "0" not "0x0".
** I think this is stupid.*/
if( longvalue==0 ) flag_alternateform = 0;
#else
/* More sensible: turn off the prefix for octal (to prevent "00"),
** but leave the prefix for hex.*/
if( longvalue==0 && infop->base==8 ) flag_alternateform = 0;
#endif
if( infop->flags & SXFLAG_SIGNED ){
if( longvalue<0 ){
longvalue = -longvalue;
/* Ticket 1433-003 */
if( longvalue < 0 ){
/* Overflow */
longvalue= 0x7FFFFFFFFFFFFFFF;
}
prefix = '-';
}else if( flag_plussign ) prefix = '+';
else if( flag_blanksign ) prefix = ' ';
else prefix = 0;
}else{
if( longvalue<0 ){
longvalue = -longvalue;
/* Ticket 1433-003 */
if( longvalue < 0 ){
/* Overflow */
longvalue= 0x7FFFFFFFFFFFFFFF;
}
}
prefix = 0;
}
if( flag_zeropad && precision<width-(prefix!=0) ){
precision = width-(prefix!=0);
}
bufpt = &buf[SXFMT_BUFSIZ-1];
{
register char *cset; /* Use registers for speed */
register int base;
cset = infop->charset;
base = infop->base;
do{ /* Convert to ascii */
*(--bufpt) = cset[longvalue%base];
longvalue = longvalue/base;
}while( longvalue>0 );
}
length = &buf[SXFMT_BUFSIZ-1]-bufpt;
for(idx=precision-length; idx>0; idx--){
*(--bufpt) = '0'; /* Zero pad */
}
if( prefix ) *(--bufpt) = prefix; /* Add sign */
if( flag_alternateform && infop->prefix ){ /* Add "0" or "0x" */
char *pre, x;
pre = infop->prefix;
if( *bufpt!=pre[0] ){
for(pre=infop->prefix; (x=(*pre))!=0; pre++) *(--bufpt) = x;
}
}
length = &buf[SXFMT_BUFSIZ-1]-bufpt;
break;
case SXFMT_FLOAT:
case SXFMT_EXP:
case SXFMT_GENERIC:
#ifndef SX_OMIT_FLOATINGPOINT
realvalue = va_arg(ap,double);
if( precision<0 ) precision = 6; /* Set default precision */
if( precision>SXFMT_BUFSIZ-40) precision = SXFMT_BUFSIZ-40;
if( realvalue<0.0 ){
realvalue = -realvalue;
prefix = '-';
}else{
if( flag_plussign ) prefix = '+';
else if( flag_blanksign ) prefix = ' ';
else prefix = 0;
}
if( infop->type==SXFMT_GENERIC && precision>0 ) precision--;
rounder = 0.0;
#if 0
/* Rounding works like BSD when the constant 0.4999 is used.Wierd! */
for(idx=precision, rounder=0.4999; idx>0; idx--, rounder*=0.1);
#else
/* It makes more sense to use 0.5 */
for(idx=precision, rounder=0.5; idx>0; idx--, rounder*=0.1);
#endif
if( infop->type==SXFMT_FLOAT ) realvalue += rounder;
/* Normalize realvalue to within 10.0 > realvalue >= 1.0 */
exp = 0;
if( realvalue>0.0 ){
while( realvalue>=1e8 && exp<=350 ){ realvalue *= 1e-8; exp+=8; }
while( realvalue>=10.0 && exp<=350 ){ realvalue *= 0.1; exp++; }
while( realvalue<1e-8 && exp>=-350 ){ realvalue *= 1e8; exp-=8; }
while( realvalue<1.0 && exp>=-350 ){ realvalue *= 10.0; exp--; }
if( exp>350 || exp<-350 ){
bufpt = "NaN";
length = 3;
break;
}
}
bufpt = buf;
/*
** If the field type is etGENERIC, then convert to either etEXP
** or etFLOAT, as appropriate.
*/
flag_exp = xtype==SXFMT_EXP;
if( xtype!=SXFMT_FLOAT ){
realvalue += rounder;
if( realvalue>=10.0 ){ realvalue *= 0.1; exp++; }
}
if( xtype==SXFMT_GENERIC ){
flag_rtz = !flag_alternateform;
if( exp<-4 || exp>precision ){
xtype = SXFMT_EXP;
}else{
precision = precision - exp;
xtype = SXFMT_FLOAT;
}
}else{
flag_rtz = 0;
}
/*
** The "exp+precision" test causes output to be of type etEXP if
** the precision is too large to fit in buf[].
*/
nsd = 0;
if( xtype==SXFMT_FLOAT && exp+precision<SXFMT_BUFSIZ-30 ){
flag_dp = (precision>0 || flag_alternateform);
if( prefix ) *(bufpt++) = prefix; /* Sign */
if( exp<0 ) *(bufpt++) = '0'; /* Digits before "." */
else for(; exp>=0; exp--) *(bufpt++) = (char)getdigit(&realvalue,&nsd);
if( flag_dp ) *(bufpt++) = '.'; /* The decimal point */
for(exp++; exp<0 && precision>0; precision--, exp++){
*(bufpt++) = '0';
}
while( (precision--)>0 ) *(bufpt++) = (char)getdigit(&realvalue,&nsd);
*(bufpt--) = 0; /* Null terminate */
if( flag_rtz && flag_dp ){ /* Remove trailing zeros and "." */
while( bufpt>=buf && *bufpt=='0' ) *(bufpt--) = 0;
if( bufpt>=buf && *bufpt=='.' ) *(bufpt--) = 0;
}
bufpt++; /* point to next free slot */
}else{ /* etEXP or etGENERIC */
flag_dp = (precision>0 || flag_alternateform);
if( prefix ) *(bufpt++) = prefix; /* Sign */
*(bufpt++) = (char)getdigit(&realvalue,&nsd); /* First digit */
if( flag_dp ) *(bufpt++) = '.'; /* Decimal point */
while( (precision--)>0 ) *(bufpt++) = (char)getdigit(&realvalue,&nsd);
bufpt--; /* point to last digit */
if( flag_rtz && flag_dp ){ /* Remove tail zeros */
while( bufpt>=buf && *bufpt=='0' ) *(bufpt--) = 0;
if( bufpt>=buf && *bufpt=='.' ) *(bufpt--) = 0;
}
bufpt++; /* point to next free slot */
if( exp || flag_exp ){
*(bufpt++) = infop->charset[0];
if( exp<0 ){ *(bufpt++) = '-'; exp = -exp; } /* sign of exp */
else { *(bufpt++) = '+'; }
if( exp>=100 ){
*(bufpt++) = (char)((exp/100)+'0'); /* 100's digit */
exp %= 100;
}
*(bufpt++) = (char)(exp/10+'0'); /* 10's digit */
*(bufpt++) = (char)(exp%10+'0'); /* 1's digit */
}
}
/* The converted number is in buf[] and zero terminated.Output it.
** Note that the number is in the usual order, not reversed as with
** integer conversions.*/
length = bufpt-buf;
bufpt = buf;
/* Special case: Add leading zeros if the flag_zeropad flag is
** set and we are not left justified */
if( flag_zeropad && !flag_leftjustify && length < width){
int i;
int nPad = width - length;
for(i=width; i>=nPad; i--){
bufpt[i] = bufpt[i-nPad];
}
i = prefix!=0;
while( nPad-- ) bufpt[i++] = '0';
length = width;
}
#else
bufpt = " ";
length = (int)sizeof(" ") - 1;
#endif /* SX_OMIT_FLOATINGPOINT */
break;
case SXFMT_SIZE:{
int *pSize = va_arg(ap,int *);
*pSize = ((SyFmtConsumer *)pUserData)->nLen;
length = width = 0;
}
break;
case SXFMT_PERCENT:
buf[0] = '%';
bufpt = buf;
length = 1;
break;
case SXFMT_CHARX:
c = va_arg(ap,int);
buf[0] = (char)c;
/* Limit the precision to prevent overflowing buf[] during conversion */
if( precision>SXFMT_BUFSIZ-40 ) precision = SXFMT_BUFSIZ-40;
if( precision>=0 ){
for(idx=1; idx<precision; idx++) buf[idx] = (char)c;
length = precision;
}else{
length =1;
}
bufpt = buf;
break;
case SXFMT_STRING:
bufpt = va_arg(ap,char*);
if( bufpt==0 ){
bufpt = " ";
length = (int)sizeof(" ")-1;
break;
}
length = precision;
if( precision < 0 ){
/* Symisc extension */
length = (int)SyStrlen(bufpt);
}
if( precision>=0 && precision<length ) length = precision;
break;
case SXFMT_RAWSTR:{
/* Symisc extension */
SyString *pStr = va_arg(ap,SyString *);
if( pStr == 0 || pStr->zString == 0 ){
bufpt = " ";
length = (int)sizeof(char);
break;
}
bufpt = (char *)pStr->zString;
length = (int)pStr->nByte;
break;
}
case SXFMT_ERROR:
buf[0] = '?';
bufpt = buf;
length = (int)sizeof(char);
if( c==0 ) zFormat--;
break;
}/* End switch over the format type */
/*
** The text of the conversion is pointed to by "bufpt" and is
** "length" characters long.The field width is "width".Do
** the output.
*/
if( !flag_leftjustify ){
register int nspace;
nspace = width-length;
if( nspace>0 ){
while( nspace>=etSPACESIZE ){
rc = xConsumer(spaces,etSPACESIZE,pUserData);
if( rc != SXRET_OK ){
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
nspace -= etSPACESIZE;
}
if( nspace>0 ){
rc = xConsumer(spaces,(unsigned int)nspace,pUserData);
if( rc != SXRET_OK ){
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
}
}
}
if( length>0 ){
rc = xConsumer(bufpt,(unsigned int)length,pUserData);
if( rc != SXRET_OK ){
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
}
if( flag_leftjustify ){
register int nspace;
nspace = width-length;
if( nspace>0 ){
while( nspace>=etSPACESIZE ){
rc = xConsumer(spaces,etSPACESIZE,pUserData);
if( rc != SXRET_OK ){
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
nspace -= etSPACESIZE;
}
if( nspace>0 ){
rc = xConsumer(spaces,(unsigned int)nspace,pUserData);
if( rc != SXRET_OK ){
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
}
}
}
}/* End for loop over the format string */
return errorflag ? SXERR_FORMAT : SXRET_OK;
}
static sxi32 FormatConsumer(const void *pSrc,unsigned int nLen,void *pData)
{
SyFmtConsumer *pConsumer = (SyFmtConsumer *)pData;
sxi32 rc = SXERR_ABORT;
switch(pConsumer->nType){
case SXFMT_CONS_PROC:
/* User callback */
rc = pConsumer->uConsumer.sFunc.xUserConsumer(pSrc,nLen,pConsumer->uConsumer.sFunc.pUserData);
break;
case SXFMT_CONS_BLOB:
/* Blob consumer */
rc = SyBlobAppend(pConsumer->uConsumer.pBlob,pSrc,(sxu32)nLen);
break;
default:
/* Unknown consumer */
break;
}
/* Update total number of bytes consumed so far */
pConsumer->nLen += nLen;
pConsumer->rc = rc;
return rc;
}
static sxi32 FormatMount(sxi32 nType,void *pConsumer,ProcConsumer xUserCons,void *pUserData,sxu32 *pOutLen,const char *zFormat,va_list ap)
{
SyFmtConsumer sCons;
sCons.nType = nType;
sCons.rc = SXRET_OK;
sCons.nLen = 0;
if( pOutLen ){
*pOutLen = 0;
}
switch(nType){
case SXFMT_CONS_PROC:
#if defined(UNTRUST)
if( xUserCons == 0 ){
return SXERR_EMPTY;
}
#endif
sCons.uConsumer.sFunc.xUserConsumer = xUserCons;
sCons.uConsumer.sFunc.pUserData = pUserData;
break;
case SXFMT_CONS_BLOB:
sCons.uConsumer.pBlob = (SyBlob *)pConsumer;
break;
default:
return SXERR_UNKNOWN;
}
InternFormat(FormatConsumer,&sCons,zFormat,ap);
if( pOutLen ){
*pOutLen = sCons.nLen;
}
return sCons.rc;
}
PH7_PRIVATE sxi32 SyProcFormat(ProcConsumer xConsumer,void *pData,const char *zFormat,...)
{
va_list ap;
sxi32 rc;
#if defined(UNTRUST)
if( SX_EMPTY_STR(zFormat) ){
return SXERR_EMPTY;
}
#endif
va_start(ap,zFormat);
rc = FormatMount(SXFMT_CONS_PROC,0,xConsumer,pData,0,zFormat,ap);
va_end(ap);
return rc;
}
PH7_PRIVATE sxu32 SyBlobFormat(SyBlob *pBlob,const char *zFormat,...)
{
va_list ap;
sxu32 n;
#if defined(UNTRUST)
if( SX_EMPTY_STR(zFormat) ){
return 0;
}
#endif
va_start(ap,zFormat);
FormatMount(SXFMT_CONS_BLOB,&(*pBlob),0,0,&n,zFormat,ap);
va_end(ap);
return n;
}
PH7_PRIVATE sxu32 SyBlobFormatAp(SyBlob *pBlob,const char *zFormat,va_list ap)
{
sxu32 n = 0; /* cc warning */
#if defined(UNTRUST)
if( SX_EMPTY_STR(zFormat) ){
return 0;
}
#endif
FormatMount(SXFMT_CONS_BLOB,&(*pBlob),0,0,&n,zFormat,ap);
return n;
}
PH7_PRIVATE sxu32 SyBufferFormat(char *zBuf,sxu32 nLen,const char *zFormat,...)
{
SyBlob sBlob;
va_list ap;
sxu32 n;
#if defined(UNTRUST)
if( SX_EMPTY_STR(zFormat) ){
return 0;
}
#endif
if( SXRET_OK != SyBlobInitFromBuf(&sBlob,zBuf,nLen - 1) ){
return 0;
}
va_start(ap,zFormat);
FormatMount(SXFMT_CONS_BLOB,&sBlob,0,0,0,zFormat,ap);
va_end(ap);
n = SyBlobLength(&sBlob);
/* Append the null terminator */
sBlob.mByte++;
SyBlobAppend(&sBlob,"\0",sizeof(char));
return n;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
/*
* Symisc XML Parser Engine (UTF-8) SAX(Event Driven) API
* @author Mrad Chems Eddine <chm@symisc.net>
* @started 08/03/2010 21:32 FreeBSD
* @finished 07/04/2010 23:24 Win32[VS8]
*/
/*
* An XML raw text,CDATA,tag name is parsed out and stored
* in an instance of the following structure.
*/
typedef struct SyXMLRawStrNS SyXMLRawStrNS;
struct SyXMLRawStrNS
{
/* Public field [Must match the SyXMLRawStr fields ] */
const char *zString; /* Raw text [UTF-8 ENCODED EXCEPT CDATA] [NOT NULL TERMINATED] */
sxu32 nByte; /* Text length */
sxu32 nLine; /* Line number this text occurs */
/* Private fields */
SySet sNSset; /* Namespace entries */
};
/*
* Lexer token codes
* The following set of constants are the token value recognized
* by the lexer when processing XML input.
*/
#define SXML_TOK_INVALID 0xFFFF /* Invalid Token */
#define SXML_TOK_COMMENT 0x01 /* Comment */
#define SXML_TOK_PI 0x02 /* Processing instruction */
#define SXML_TOK_DOCTYPE 0x04 /* Doctype directive */
#define SXML_TOK_RAW 0x08 /* Raw text */
#define SXML_TOK_START_TAG 0x10 /* Starting tag */
#define SXML_TOK_CDATA 0x20 /* CDATA */
#define SXML_TOK_END_TAG 0x40 /* Ending tag */
#define SXML_TOK_START_END 0x80 /* Tag */
#define SXML_TOK_SPACE 0x100 /* Spaces (including new lines) */
#define IS_XML_DIRTY(c) \
( c == '<' || c == '$'|| c == '"' || c == '\''|| c == '&'|| c == '(' || c == ')' || c == '*' ||\
c == '%' || c == '#' || c == '|' || c == '/'|| c == '~' || c == '{' || c == '}' ||\
c == '[' || c == ']' || c == '\\'|| c == ';'||c == '^' || c == '`' )
/* Tokenize an entire XML input */
static sxi32 XML_Tokenize(SyStream *pStream,SyToken *pToken,void *pUserData,void *pUnused2)
{
SyXMLParser *pParse = (SyXMLParser *)pUserData;
SyString *pStr;
sxi32 rc;
int c;
/* Jump leading white spaces */
while( pStream->zText < pStream->zEnd && pStream->zText[0] < 0xc0 && SyisSpace(pStream->zText[0]) ){
/* Advance the stream cursor */
if( pStream->zText[0] == '\n' ){
/* Increment line counter */
pStream->nLine++;
}
pStream->zText++;
}
if( pStream->zText >= pStream->zEnd ){
SXUNUSED(pUnused2);
/* End of input reached */
return SXERR_EOF;
}
/* Record token starting position and line */
pToken->nLine = pStream->nLine;
pToken->pUserData = 0;
pStr = &pToken->sData;
SyStringInitFromBuf(pStr,pStream->zText,0);
/* Extract the current token */
c = pStream->zText[0];
if( c == '<' ){
pStream->zText++;
pStr->zString++;
if( pStream->zText >= pStream->zEnd ){
if( pParse->xError ){
rc = pParse->xError("Illegal syntax,expecting valid start name character",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
/* End of input reached */
return SXERR_EOF;
}
c = pStream->zText[0];
if( c == '?' ){
/* Processing instruction */
pStream->zText++;
pStr->zString++;
pToken->nType = SXML_TOK_PI;
while( XLEX_IN_LEN(pStream) >= sizeof("?>")-1 &&
SyMemcmp((const void *)pStream->zText,"?>",sizeof("?>")-1) != 0 ){
if( pStream->zText[0] == '\n' ){
/* Increment line counter */
pStream->nLine++;
}
pStream->zText++;
}
/* Record token length */
pStr->nByte = (sxu32)((const char *)pStream->zText-pStr->zString);
if( XLEX_IN_LEN(pStream) < sizeof("?>")-1 ){
if( pParse->xError ){
rc = pParse->xError("End of input found,but processing instruction was not found",SXML_ERROR_UNCLOSED_TOKEN,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_EOF;
}
pStream->zText += sizeof("?>")-1;
}else if( c == '!' ){
pStream->zText++;
if( XLEX_IN_LEN(pStream) >= sizeof("--")-1 && pStream->zText[0] == '-' && pStream->zText[1] == '-' ){
/* Comment */
pStream->zText += sizeof("--") - 1;
while( XLEX_IN_LEN(pStream) >= sizeof("-->")-1 &&
SyMemcmp((const void *)pStream->zText,"-->",sizeof("-->")-1) != 0 ){
if( pStream->zText[0] == '\n' ){
/* Increment line counter */
pStream->nLine++;
}
pStream->zText++;
}
pStream->zText += sizeof("-->")-1;
/* Tell the lexer to ignore this token */
return SXERR_CONTINUE;
}
if( XLEX_IN_LEN(pStream) >= sizeof("[CDATA[") - 1 && SyMemcmp((const void *)pStream->zText,"[CDATA[",sizeof("[CDATA[")-1) == 0 ){
/* CDATA */
pStream->zText += sizeof("[CDATA[") - 1;
pStr->zString = (const char *)pStream->zText;
while( XLEX_IN_LEN(pStream) >= sizeof("]]>")-1 &&
SyMemcmp((const void *)pStream->zText,"]]>",sizeof("]]>")-1) != 0 ){
if( pStream->zText[0] == '\n' ){
/* Increment line counter */
pStream->nLine++;
}
pStream->zText++;
}
/* Record token type and length */
pStr->nByte = (sxu32)((const char *)pStream->zText-pStr->zString);
pToken->nType = SXML_TOK_CDATA;
if( XLEX_IN_LEN(pStream) < sizeof("]]>")-1 ){
if( pParse->xError ){
rc = pParse->xError("End of input found,but ]]> was not found",SXML_ERROR_UNCLOSED_TOKEN,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_EOF;
}
pStream->zText += sizeof("]]>")-1;
return SXRET_OK;
}
if( XLEX_IN_LEN(pStream) >= sizeof("DOCTYPE") - 1 && SyMemcmp((const void *)pStream->zText,"DOCTYPE",sizeof("DOCTYPE")-1) == 0 ){
SyString sDelim = { ">" , sizeof(char) }; /* Default delimiter */
int c = 0;
/* DOCTYPE */
pStream->zText += sizeof("DOCTYPE") - 1;
pStr->zString = (const char *)pStream->zText;
/* Check for element declaration */
while( pStream->zText < pStream->zEnd && pStream->zText[0] != '\n' ){
if( pStream->zText[0] >= 0xc0 || !SyisSpace(pStream->zText[0]) ){
c = pStream->zText[0];
if( c == '>' ){
break;
}
}
pStream->zText++;
}
if( c == '[' ){
/* Change the delimiter */
SyStringInitFromBuf(&sDelim,"]>",sizeof("]>")-1);
}
if( c != '>' ){
while( XLEX_IN_LEN(pStream) >= sDelim.nByte &&
SyMemcmp((const void *)pStream->zText,sDelim.zString,sDelim.nByte) != 0 ){
if( pStream->zText[0] == '\n' ){
/* Increment line counter */
pStream->nLine++;
}
pStream->zText++;
}
}
/* Record token type and length */
pStr->nByte = (sxu32)((const char *)pStream->zText-pStr->zString);
pToken->nType = SXML_TOK_DOCTYPE;
if( XLEX_IN_LEN(pStream) < sDelim.nByte ){
if( pParse->xError ){
rc = pParse->xError("End of input found,but ]> or > was not found",SXML_ERROR_UNCLOSED_TOKEN,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_EOF;
}
pStream->zText += sDelim.nByte;
return SXRET_OK;
}
}else{
int c;
c = pStream->zText[0];
rc = SXRET_OK;
pToken->nType = SXML_TOK_START_TAG;
if( c == '/' ){
/* End tag */
pToken->nType = SXML_TOK_END_TAG;
pStream->zText++;
pStr->zString++;
if( pStream->zText >= pStream->zEnd ){
if( pParse->xError ){
rc = pParse->xError("Illegal syntax,expecting valid start name character",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_EOF;
}
c = pStream->zText[0];
}
if( c == '>' ){
/*<>*/
if( pParse->xError ){
rc = pParse->xError("Illegal syntax,expecting valid start name character",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
/* Ignore the token */
return SXERR_CONTINUE;
}
if( c < 0xc0 && (SyisSpace(c) || SyisDigit(c) || c == '.' || c == '-' ||IS_XML_DIRTY(c) ) ){
if( pParse->xError ){
rc = pParse->xError("Illegal syntax,expecting valid start name character",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
rc = SXERR_INVALID;
}
pStream->zText++;
/* Delimit the tag */
while( pStream->zText < pStream->zEnd && pStream->zText[0] != '>' ){
c = pStream->zText[0];
if( c >= 0xc0 ){
/* UTF-8 stream */
pStream->zText++;
SX_JMP_UTF8(pStream->zText,pStream->zEnd);
}else{
if( c == '/' && &pStream->zText[1] < pStream->zEnd && pStream->zText[1] == '>' ){
pStream->zText++;
if( pToken->nType != SXML_TOK_START_TAG ){
if( pParse->xError ){
rc = pParse->xError("Unexpected closing tag,expecting '>'",
SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
/* Ignore the token */
rc = SXERR_INVALID;
}else{
pToken->nType = SXML_TOK_START_END;
}
break;
}
if( pStream->zText[0] == '\n' ){
/* Increment line counter */
pStream->nLine++;
}
/* Advance the stream cursor */
pStream->zText++;
}
}
if( rc != SXRET_OK ){
/* Tell the lexer to ignore this token */
return SXERR_CONTINUE;
}
/* Record token length */
pStr->nByte = (sxu32)((const char *)pStream->zText-pStr->zString);
if( pToken->nType == SXML_TOK_START_END && pStr->nByte > 0){
pStr->nByte -= sizeof(char);
}
if ( pStream->zText < pStream->zEnd ){
pStream->zText++;
}else{
if( pParse->xError ){
rc = pParse->xError("End of input found,but closing tag '>' was not found",SXML_ERROR_UNCLOSED_TOKEN,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
}
}
}else{
/* Raw input */
while( pStream->zText < pStream->zEnd ){
c = pStream->zText[0];
if( c < 0xc0 ){
if( c == '<' ){
break;
}else if( c == '\n' ){
/* Increment line counter */
pStream->nLine++;
}
/* Advance the stream cursor */
pStream->zText++;
}else{
/* UTF-8 stream */
pStream->zText++;
SX_JMP_UTF8(pStream->zText,pStream->zEnd);
}
}
/* Record token type,length */
pToken->nType = SXML_TOK_RAW;
pStr->nByte = (sxu32)((const char *)pStream->zText-pStr->zString);
}
/* Return to the lexer */
return SXRET_OK;
}
static int XMLCheckDuplicateAttr(SyXMLRawStr *aSet,sxu32 nEntry,SyXMLRawStr *pEntry)
{
sxu32 n;
for( n = 0 ; n < nEntry ; n += 2 ){
SyXMLRawStr *pAttr = &aSet[n];
if( pAttr->nByte == pEntry->nByte && SyMemcmp(pAttr->zString,pEntry->zString,pEntry->nByte) == 0 ){
/* Attribute found */
return 1;
}
}
/* No duplicates */
return 0;
}
static sxi32 XMLProcessNamesSpace(SyXMLParser *pParse,SyXMLRawStrNS *pTag,SyToken *pToken,SySet *pAttr)
{
SyXMLRawStr *pPrefix,*pUri; /* Namespace prefix/URI */
SyHashEntry *pEntry;
SyXMLRawStr *pDup;
sxi32 rc;
/* Extract the URI first */
pUri = (SyXMLRawStr *)SySetPeek(pAttr);
/* Extract the prefix */
pPrefix = (SyXMLRawStr *)SySetAt(pAttr,SySetUsed(pAttr) - 2);
/* Prefix name */
if( pPrefix->nByte == sizeof("xmlns")-1 ){
/* Default namespace */
pPrefix->nByte = 0;
pPrefix->zString = ""; /* Empty string */
}else{
pPrefix->nByte -= sizeof("xmlns")-1;
pPrefix->zString += sizeof("xmlns")-1;
if( pPrefix->zString[0] != ':' ){
return SXRET_OK;
}
pPrefix->nByte--;
pPrefix->zString++;
if( pPrefix->nByte < 1 ){
if( pParse->xError ){
rc = pParse->xError("Invalid namespace name",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
/* POP the last insertred two entries */
(void)SySetPop(pAttr);
(void)SySetPop(pAttr);
return SXERR_SYNTAX;
}
}
/* Invoke the namespace callback if available */
if( pParse->xNameSpace ){
rc = pParse->xNameSpace(pPrefix,pUri,pParse->pUserData);
if( rc == SXERR_ABORT ){
/* User callback request an operation abort */
return SXERR_ABORT;
}
}
/* Duplicate structure */
pDup = (SyXMLRawStr *)SyMemBackendAlloc(pParse->pAllocator,sizeof(SyXMLRawStr));
if( pDup == 0 ){
if( pParse->xError ){
pParse->xError("Out of memory",SXML_ERROR_NO_MEMORY,pToken,pParse->pUserData);
}
/* Abort processing immediately */
return SXERR_ABORT;
}
*pDup = *pUri; /* Structure assignement */
/* Save the namespace */
if( pPrefix->nByte == 0 ){
pPrefix->zString = "Default";
pPrefix->nByte = sizeof("Default")-1;
}
SyHashInsert(&pParse->hns,(const void *)pPrefix->zString,pPrefix->nByte,pDup);
/* Peek the last inserted entry */
pEntry = SyHashLastEntry(&pParse->hns);
/* Store in the corresponding tag container*/
SySetPut(&pTag->sNSset,(const void *)&pEntry);
/* POP the last insertred two entries */
(void)SySetPop(pAttr);
(void)SySetPop(pAttr);
return SXRET_OK;
}
static sxi32 XMLProcessStartTag(SyXMLParser *pParse,SyToken *pToken,SyXMLRawStrNS *pTag,SySet *pAttrSet,SySet *pTagStack)
{
SyString *pIn = &pToken->sData;
const char *zIn,*zCur,*zEnd;
SyXMLRawStr sEntry;
sxi32 rc;
int c;
/* Reset the working set */
SySetReset(pAttrSet);
/* Delimit the raw tag */
zIn = pIn->zString;
zEnd = &zIn[pIn->nByte];
while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
zIn++;
}
/* Isolate tag name */
sEntry.nLine = pTag->nLine = pToken->nLine;
zCur = zIn;
while( zIn < zEnd ){
if( (unsigned char)zIn[0] >= 0xc0 ){
/* UTF-8 stream */
zIn++;
SX_JMP_UTF8(zIn,zEnd);
}else if( SyisSpace(zIn[0])){
break;
}else{
if( IS_XML_DIRTY(zIn[0]) ){
if( pParse->xError ){
rc = pParse->xError("Illegal character in XML name",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
}
zIn++;
}
}
if( zCur >= zIn ){
if( pParse->xError ){
rc = pParse->xError("Invalid XML name",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_SYNTAX;
}
pTag->zString = zCur;
pTag->nByte = (sxu32)(zIn-zCur);
/* Process tag attribute */
for(;;){
int is_ns = 0;
while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
zIn++;
}
if( zIn >= zEnd ){
break;
}
zCur = zIn;
while( zIn < zEnd && zIn[0] != '=' ){
if( (unsigned char)zIn[0] >= 0xc0 ){
/* UTF-8 stream */
zIn++;
SX_JMP_UTF8(zIn,zEnd);
}else if( SyisSpace(zIn[0]) ){
break;
}else{
zIn++;
}
}
if( zCur >= zIn ){
if( pParse->xError ){
rc = pParse->xError("Missing attribute name",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_SYNTAX;
}
/* Store attribute name */
sEntry.zString = zCur;
sEntry.nByte = (sxu32)(zIn-zCur);
if( (pParse->nFlags & SXML_ENABLE_NAMESPACE) && sEntry.nByte >= sizeof("xmlns") - 1 &&
SyMemcmp(sEntry.zString,"xmlns",sizeof("xmlns") - 1) == 0 ){
is_ns = 1;
}
while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
zIn++;
}
if( zIn >= zEnd || zIn[0] != '=' ){
if( pParse->xError ){
rc = pParse->xError("Missing attribute value",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_SYNTAX;
}
while( sEntry.nByte > 0 && (unsigned char)zCur[sEntry.nByte - 1] < 0xc0
&& SyisSpace(zCur[sEntry.nByte - 1])){
sEntry.nByte--;
}
/* Check for duplicates first */
if( XMLCheckDuplicateAttr((SyXMLRawStr *)SySetBasePtr(pAttrSet),SySetUsed(pAttrSet),&sEntry) ){
if( pParse->xError ){
rc = pParse->xError("Duplicate attribute",SXML_ERROR_DUPLICATE_ATTRIBUTE,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_SYNTAX;
}
if( SXRET_OK != SySetPut(pAttrSet,(const void *)&sEntry) ){
return SXERR_ABORT;
}
/* Extract attribute value */
zIn++; /* Jump the trailing '=' */
while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
zIn++;
}
if( zIn >= zEnd ){
if( pParse->xError ){
rc = pParse->xError("Missing attribute value",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
(void)SySetPop(pAttrSet);
return SXERR_SYNTAX;
}
if( zIn[0] != '\'' && zIn[0] != '"' ){
if( pParse->xError ){
rc = pParse->xError("Missing quotes on attribute value",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
(void)SySetPop(pAttrSet);
return SXERR_SYNTAX;
}
c = zIn[0];
zIn++;
zCur = zIn;
while( zIn < zEnd && zIn[0] != c ){
zIn++;
}
if( zIn >= zEnd ){
if( pParse->xError ){
rc = pParse->xError("Missing quotes on attribute value",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
(void)SySetPop(pAttrSet);
return SXERR_SYNTAX;
}
/* Store attribute value */
sEntry.zString = zCur;
sEntry.nByte = (sxu32)(zIn-zCur);
if( SXRET_OK != SySetPut(pAttrSet,(const void *)&sEntry) ){
return SXERR_ABORT;
}
zIn++;
if( is_ns ){
/* Process namespace declaration */
XMLProcessNamesSpace(pParse,pTag,pToken,pAttrSet);
}
}
/* Store in the tag stack */
if( pToken->nType == SXML_TOK_START_TAG ){
rc = SySetPut(pTagStack,(const void *)pTag);
}
return SXRET_OK;
}
static void XMLExtactPI(SyToken *pToken,SyXMLRawStr *pTarget,SyXMLRawStr *pData,int *pXML)
{
SyString *pIn = &pToken->sData;
const char *zIn,*zCur,*zEnd;
pTarget->nLine = pData->nLine = pToken->nLine;
/* Nullify the entries first */
pTarget->zString = pData->zString = 0;
/* Ignore leading and traing white spaces */
SyStringFullTrim(pIn);
/* Delimit the raw PI */
zIn = pIn->zString;
zEnd = &zIn[pIn->nByte];
if( pXML ){
*pXML = 0;
}
/* Extract the target */
zCur = zIn;
while( zIn < zEnd ){
if( (unsigned char)zIn[0] >= 0xc0 ){
/* UTF-8 stream */
zIn++;
SX_JMP_UTF8(zIn,zEnd);
}else if( SyisSpace(zIn[0])){
break;
}else{
zIn++;
}
}
if( zIn > zCur ){
pTarget->zString = zCur;
pTarget->nByte = (sxu32)(zIn-zCur);
if( pXML && pTarget->nByte == sizeof("xml")-1 && SyStrnicmp(pTarget->zString,"xml",sizeof("xml")-1) == 0 ){
*pXML = 1;
}
}
/* Extract the PI data */
while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
zIn++;
}
if( zIn < zEnd ){
pData->zString = zIn;
pData->nByte = (sxu32)(zEnd-zIn);
}
}
static sxi32 XMLExtractEndTag(SyXMLParser *pParse,SyToken *pToken,SyXMLRawStrNS *pOut)
{
SyString *pIn = &pToken->sData;
const char *zEnd = &pIn->zString[pIn->nByte];
const char *zIn = pIn->zString;
/* Ignore leading white spaces */
while( zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0]) ){
zIn++;
}
pOut->nLine = pToken->nLine;
pOut->zString = zIn;
pOut->nByte = (sxu32)(zEnd-zIn);
/* Ignore trailing white spaces */
while( pOut->nByte > 0 && (unsigned char)pOut->zString[pOut->nByte - 1] < 0xc0
&& SyisSpace(pOut->zString[pOut->nByte - 1]) ){
pOut->nByte--;
}
if( pOut->nByte < 1 ){
if( pParse->xError ){
sxi32 rc;
rc = pParse->xError("Invalid end tag name",SXML_ERROR_INVALID_TOKEN,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_SYNTAX;
}
return SXRET_OK;
}
static void TokenToXMLString(SyToken *pTok,SyXMLRawStrNS *pOut)
{
/* Remove leading and trailing white spaces first */
SyStringFullTrim(&pTok->sData);
pOut->zString = SyStringData(&pTok->sData);
pOut->nByte = SyStringLength(&pTok->sData);
}
static sxi32 XMLExtractNS(SyXMLParser *pParse,SyToken *pToken,SyXMLRawStrNS *pTag,SyXMLRawStr *pnsUri)
{
SyXMLRawStr *pUri,sPrefix;
SyHashEntry *pEntry;
sxu32 nOfft;
sxi32 rc;
/* Extract a prefix if available */
rc = SyByteFind(pTag->zString,pTag->nByte,':',&nOfft);
if( rc != SXRET_OK ){
/* Check if there is a default namespace */
pEntry = SyHashGet(&pParse->hns,"Default",sizeof("Default")-1);
if( pEntry ){
/* Extract the ns URI */
pUri = (SyXMLRawStr *)pEntry->pUserData;
/* Save the ns URI */
pnsUri->zString = pUri->zString;
pnsUri->nByte = pUri->nByte;
}
return SXRET_OK;
}
if( nOfft < 1 ){
if( pParse->xError ){
rc = pParse->xError("Empty prefix is not allowed according to XML namespace specification",
SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_SYNTAX;
}
sPrefix.zString = pTag->zString;
sPrefix.nByte = nOfft;
sPrefix.nLine = pTag->nLine;
pTag->zString += nOfft + 1;
pTag->nByte -= nOfft;
if( pTag->nByte < 1 ){
if( pParse->xError ){
rc = pParse->xError("Missing tag name",SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_SYNTAX;
}
/* Check if the prefix is already registered */
pEntry = SyHashGet(&pParse->hns,sPrefix.zString,sPrefix.nByte);
if( pEntry == 0 ){
if( pParse->xError ){
rc = pParse->xError("Namespace prefix is not defined",SXML_ERROR_SYNTAX,
pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
return SXERR_SYNTAX;
}
/* Extract the ns URI */
pUri = (SyXMLRawStr *)pEntry->pUserData;
/* Save the ns URI */
pnsUri->zString = pUri->zString;
pnsUri->nByte = pUri->nByte;
/* All done */
return SXRET_OK;
}
static sxi32 XMLnsUnlink(SyXMLParser *pParse,SyXMLRawStrNS *pLast,SyToken *pToken)
{
SyHashEntry **apEntry,*pEntry;
void *pUserData;
sxu32 n;
/* Release namespace entries */
apEntry = (SyHashEntry **)SySetBasePtr(&pLast->sNSset);
for( n = 0 ; n < SySetUsed(&pLast->sNSset) ; ++n ){
pEntry = apEntry[n];
/* Invoke the end namespace declaration callback */
if( pParse->xNameSpaceEnd && (pParse->nFlags & SXML_ENABLE_NAMESPACE) && pToken ){
SyXMLRawStr sPrefix;
sxi32 rc;
sPrefix.zString = (const char *)pEntry->pKey;
sPrefix.nByte = pEntry->nKeyLen;
sPrefix.nLine = pToken->nLine;
rc = pParse->xNameSpaceEnd(&sPrefix,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
pUserData = pEntry->pUserData;
/* Remove from the namespace hashtable */
SyHashDeleteEntry2(pEntry);
SyMemBackendFree(pParse->pAllocator,pUserData);
}
SySetRelease(&pLast->sNSset);
return SXRET_OK;
}
/* Process XML tokens */
static sxi32 ProcessXML(SyXMLParser *pParse,SySet *pTagStack,SySet *pWorker)
{
SySet *pTokenSet = &pParse->sToken;
SyXMLRawStrNS sEntry;
SyXMLRawStr sNs;
SyToken *pToken;
int bGotTag;
sxi32 rc;
/* Initialize fields */
bGotTag = 0;
/* Start processing */
if( pParse->xStartDoc && (SXERR_ABORT == pParse->xStartDoc(pParse->pUserData)) ){
/* User callback request an operation abort */
return SXERR_ABORT;
}
/* Reset the loop cursor */
SySetResetCursor(pTokenSet);
/* Extract the current token */
while( SXRET_OK == (SySetGetNextEntry(&(*pTokenSet),(void **)&pToken)) ){
SyZero(&sEntry,sizeof(SyXMLRawStrNS));
SyZero(&sNs,sizeof(SyXMLRawStr));
SySetInit(&sEntry.sNSset,pParse->pAllocator,sizeof(SyHashEntry *));
sEntry.nLine = sNs.nLine = pToken->nLine;
switch(pToken->nType){
case SXML_TOK_DOCTYPE:
if( SySetUsed(pTagStack) > 1 || bGotTag ){
if( pParse->xError ){
rc = pParse->xError("DOCTYPE must be declared first",SXML_ERROR_MISPLACED_XML_PI,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
break;
}
/* Invoke the supplied callback if any */
if( pParse->xDoctype ){
TokenToXMLString(pToken,&sEntry);
rc = pParse->xDoctype((SyXMLRawStr *)&sEntry,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
break;
case SXML_TOK_CDATA:
if( SySetUsed(pTagStack) < 1 ){
if( pParse->xError ){
rc = pParse->xError("CDATA without matching tag",SXML_ERROR_TAG_MISMATCH,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
}
/* Invoke the supplied callback if any */
if( pParse->xRaw ){
TokenToXMLString(pToken,&sEntry);
rc = pParse->xRaw((SyXMLRawStr *)&sEntry,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
break;
case SXML_TOK_PI:{
SyXMLRawStr sTarget,sData;
int isXML = 0;
/* Extract the target and data */
XMLExtactPI(pToken,&sTarget,&sData,&isXML);
if( isXML && SySetCursor(pTokenSet) - 1 > 0 ){
if( pParse->xError ){
rc = pParse->xError("Unexpected XML declaration. The XML declaration must be the first node in the document",
SXML_ERROR_MISPLACED_XML_PI,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
}else if( pParse->xPi ){
/* Invoke the supplied callback*/
rc = pParse->xPi(&sTarget,&sData,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
break;
}
case SXML_TOK_RAW:
if( SySetUsed(pTagStack) < 1 ){
if( pParse->xError ){
rc = pParse->xError("Text (Raw data) without matching tag",SXML_ERROR_TAG_MISMATCH,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
break;
}
/* Invoke the supplied callback if any */
if( pParse->xRaw ){
TokenToXMLString(pToken,&sEntry);
rc = pParse->xRaw((SyXMLRawStr *)&sEntry,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
break;
case SXML_TOK_END_TAG:{
SyXMLRawStrNS *pLast = 0; /* cc warning */
if( SySetUsed(pTagStack) < 1 ){
if( pParse->xError ){
rc = pParse->xError("Unexpected closing tag",SXML_ERROR_TAG_MISMATCH,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
break;
}
rc = XMLExtractEndTag(pParse,pToken,&sEntry);
if( rc == SXRET_OK ){
/* Extract the last inserted entry */
pLast = (SyXMLRawStrNS *)SySetPeek(pTagStack);
if( pLast == 0 || pLast->nByte != sEntry.nByte ||
SyMemcmp(pLast->zString,sEntry.zString,sEntry.nByte) != 0 ){
if( pParse->xError ){
rc = pParse->xError("Unexpected closing tag",SXML_ERROR_TAG_MISMATCH,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
}else{
/* Invoke the supllied callback if any */
if( pParse->xEndTag ){
rc = SXRET_OK;
if( pParse->nFlags & SXML_ENABLE_NAMESPACE ){
/* Extract namespace URI */
rc = XMLExtractNS(pParse,pToken,&sEntry,&sNs);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
if( rc == SXRET_OK ){
rc = pParse->xEndTag((SyXMLRawStr *)&sEntry,&sNs,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
}
}
}else if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
if( pLast ){
rc = XMLnsUnlink(pParse,pLast,pToken);
(void)SySetPop(pTagStack);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
break;
}
case SXML_TOK_START_TAG:
case SXML_TOK_START_END:
if( SySetUsed(pTagStack) < 1 && bGotTag ){
if( pParse->xError ){
rc = pParse->xError("XML document cannot contain multiple root level elements documents",
SXML_ERROR_SYNTAX,pToken,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
break;
}
bGotTag = 1;
/* Extract the tag and it's supplied attribute */
rc = XMLProcessStartTag(pParse,pToken,&sEntry,pWorker,pTagStack);
if( rc == SXRET_OK ){
if( pParse->nFlags & SXML_ENABLE_NAMESPACE ){
/* Extract namespace URI */
rc = XMLExtractNS(pParse,pToken,&sEntry,&sNs);
}
}
if( rc == SXRET_OK ){
/* Invoke the supplied callback */
if( pParse->xStartTag ){
rc = pParse->xStartTag((SyXMLRawStr *)&sEntry,&sNs,SySetUsed(pWorker),
(SyXMLRawStr *)SySetBasePtr(pWorker),pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
if( pToken->nType == SXML_TOK_START_END ){
if ( pParse->xEndTag ){
rc = pParse->xEndTag((SyXMLRawStr *)&sEntry,&sNs,pParse->pUserData);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
rc = XMLnsUnlink(pParse,&sEntry,pToken);
if( rc == SXERR_ABORT ){
return SXERR_ABORT;
}
}
}else if( rc == SXERR_ABORT ){
/* Abort processing immediately */
return SXERR_ABORT;
}
break;
default:
/* Can't happen */
break;
}
}
if( SySetUsed(pTagStack) > 0 && pParse->xError){
pParse->xError("Missing closing tag",SXML_ERROR_SYNTAX,
(SyToken *)SySetPeek(&pParse->sToken),pParse->pUserData);
}
if( pParse->xEndDoc ){
pParse->xEndDoc(pParse->pUserData);
}
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyXMLParserInit(SyXMLParser *pParser,SyMemBackend *pAllocator,sxi32 iFlags)
{
/* Zero the structure first */
SyZero(pParser,sizeof(SyXMLParser));
/* Initilaize fields */
SySetInit(&pParser->sToken,pAllocator,sizeof(SyToken));
SyLexInit(&pParser->sLex,&pParser->sToken,XML_Tokenize,pParser);
SyHashInit(&pParser->hns,pAllocator,0,0);
pParser->pAllocator = pAllocator;
pParser->nFlags = iFlags;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyXMLParserSetEventHandler(SyXMLParser *pParser,
void *pUserData,
ProcXMLStartTagHandler xStartTag,
ProcXMLTextHandler xRaw,
ProcXMLSyntaxErrorHandler xErr,
ProcXMLStartDocument xStartDoc,
ProcXMLEndTagHandler xEndTag,
ProcXMLPIHandler xPi,
ProcXMLEndDocument xEndDoc,
ProcXMLDoctypeHandler xDoctype,
ProcXMLNameSpaceStart xNameSpace,
ProcXMLNameSpaceEnd xNameSpaceEnd
){
/* Install user callbacks */
if( xErr ){
pParser->xError = xErr;
}
if( xStartDoc ){
pParser->xStartDoc = xStartDoc;
}
if( xStartTag ){
pParser->xStartTag = xStartTag;
}
if( xRaw ){
pParser->xRaw = xRaw;
}
if( xEndTag ){
pParser->xEndTag = xEndTag;
}
if( xPi ){
pParser->xPi = xPi;
}
if( xEndDoc ){
pParser->xEndDoc = xEndDoc;
}
if( xDoctype ){
pParser->xDoctype = xDoctype;
}
if( xNameSpace ){
pParser->xNameSpace = xNameSpace;
}
if( xNameSpaceEnd ){
pParser->xNameSpaceEnd = xNameSpaceEnd;
}
pParser->pUserData = pUserData;
return SXRET_OK;
}
/* Process an XML chunk */
PH7_PRIVATE sxi32 SyXMLProcess(SyXMLParser *pParser,const char *zInput,sxu32 nByte)
{
SySet sTagStack;
SySet sWorker;
sxi32 rc;
/* Initialize working sets */
SySetInit(&sWorker,pParser->pAllocator,sizeof(SyXMLRawStr)); /* Tag container */
SySetInit(&sTagStack,pParser->pAllocator,sizeof(SyXMLRawStrNS)); /* Tag stack */
/* Tokenize the entire input */
rc = SyLexTokenizeInput(&pParser->sLex,zInput,nByte,0,0,0);
if( rc == SXERR_ABORT ){
/* Tokenize callback request an operation abort */
return SXERR_ABORT;
}
if( SySetUsed(&pParser->sToken) < 1 ){
/* Nothing to process [i.e: white spaces] */
rc = SXRET_OK;
}else{
/* Process XML Tokens */
rc = ProcessXML(&(*pParser),&sTagStack,&sWorker);
if( pParser->nFlags & SXML_ENABLE_NAMESPACE ){
if( SySetUsed(&sTagStack) > 0 ){
SyXMLRawStrNS *pEntry;
SyHashEntry **apEntry;
sxu32 n;
SySetResetCursor(&sTagStack);
while( SySetGetNextEntry(&sTagStack,(void **)&pEntry) == SXRET_OK ){
/* Release namespace entries */
apEntry = (SyHashEntry **)SySetBasePtr(&pEntry->sNSset);
for( n = 0 ; n < SySetUsed(&pEntry->sNSset) ; ++n ){
SyMemBackendFree(pParser->pAllocator,apEntry[n]->pUserData);
}
SySetRelease(&pEntry->sNSset);
}
}
}
}
/* Clean-up the mess left behind */
SySetRelease(&sWorker);
SySetRelease(&sTagStack);
/* Processing result */
return rc;
}
PH7_PRIVATE sxi32 SyXMLParserRelease(SyXMLParser *pParser)
{
SyLexRelease(&pParser->sLex);
SySetRelease(&pParser->sToken);
SyHashRelease(&pParser->hns);
return SXRET_OK;
}
/*
* Zip File Format:
*
* Byte order: Little-endian
*
* [Local file header + Compressed data [+ Extended local header]?]*
* [Central directory]*
* [End of central directory record]
*
* Local file header:*
* Offset Length Contents
* 0 4 bytes Local file header signature (0x04034b50)
* 4 2 bytes Version needed to extract
* 6 2 bytes General purpose bit flag
* 8 2 bytes Compression method
* 10 2 bytes Last mod file time
* 12 2 bytes Last mod file date
* 14 4 bytes CRC-32
* 18 4 bytes Compressed size (n)
* 22 4 bytes Uncompressed size
* 26 2 bytes Filename length (f)
* 28 2 bytes Extra field length (e)
* 30 (f)bytes Filename
* (e)bytes Extra field
* (n)bytes Compressed data
*
* Extended local header:*
* Offset Length Contents
* 0 4 bytes Extended Local file header signature (0x08074b50)
* 4 4 bytes CRC-32
* 8 4 bytes Compressed size
* 12 4 bytes Uncompressed size
*
* Extra field:?(if any)
* Offset Length Contents
* 0 2 bytes Header ID (0x001 until 0xfb4a) see extended appnote from Info-zip
* 2 2 bytes Data size (g)
* (g) bytes (g) bytes of extra field
*
* Central directory:*
* Offset Length Contents
* 0 4 bytes Central file header signature (0x02014b50)
* 4 2 bytes Version made by
* 6 2 bytes Version needed to extract
* 8 2 bytes General purpose bit flag
* 10 2 bytes Compression method
* 12 2 bytes Last mod file time
* 14 2 bytes Last mod file date
* 16 4 bytes CRC-32
* 20 4 bytes Compressed size
* 24 4 bytes Uncompressed size
* 28 2 bytes Filename length (f)
* 30 2 bytes Extra field length (e)
* 32 2 bytes File comment length (c)
* 34 2 bytes Disk number start
* 36 2 bytes Internal file attributes
* 38 4 bytes External file attributes
* 42 4 bytes Relative offset of local header
* 46 (f)bytes Filename
* (e)bytes Extra field
* (c)bytes File comment
*
* End of central directory record:
* Offset Length Contents
* 0 4 bytes End of central dir signature (0x06054b50)
* 4 2 bytes Number of this disk
* 6 2 bytes Number of the disk with the start of the central directory
* 8 2 bytes Total number of entries in the central dir on this disk
* 10 2 bytes Total number of entries in the central dir
* 12 4 bytes Size of the central directory
* 16 4 bytes Offset of start of central directory with respect to the starting disk number
* 20 2 bytes zipfile comment length (c)
* 22 (c)bytes zipfile comment
*
* compression method: (2 bytes)
* 0 - The file is stored (no compression)
* 1 - The file is Shrunk
* 2 - The file is Reduced with compression factor 1
* 3 - The file is Reduced with compression factor 2
* 4 - The file is Reduced with compression factor 3
* 5 - The file is Reduced with compression factor 4
* 6 - The file is Imploded
* 7 - Reserved for Tokenizing compression algorithm
* 8 - The file is Deflated
*/
#define SXMAKE_ZIP_WORKBUF (SXU16_HIGH/2) /* 32KB Initial working buffer size */
#define SXMAKE_ZIP_EXTRACT_VER 0x000a /* Version needed to extract */
#define SXMAKE_ZIP_VER 0x003 /* Version made by */
#define SXZIP_CENTRAL_MAGIC 0x02014b50
#define SXZIP_END_CENTRAL_MAGIC 0x06054b50
#define SXZIP_LOCAL_MAGIC 0x04034b50
/*#define SXZIP_CRC32_START 0xdebb20e3*/
#define SXZIP_LOCAL_HDRSZ 30 /* Local header size */
#define SXZIP_LOCAL_EXT_HDRZ 16 /* Extended local header(footer) size */
#define SXZIP_CENTRAL_HDRSZ 46 /* Central directory header size */
#define SXZIP_END_CENTRAL_HDRSZ 22 /* End of central directory header size */
#define SXARCHIVE_HASH_SIZE 64 /* Starting hash table size(MUST BE POWER OF 2)*/
static sxi32 SyLittleEndianUnpack32(sxu32 *uNB,const unsigned char *buf,sxu32 Len)
{
if( Len < sizeof(sxu32) ){
return SXERR_SHORT;
}
*uNB = buf[0] + (buf[1] << 8) + (buf[2] << 16) + (buf[3] << 24);
return SXRET_OK;
}
static sxi32 SyLittleEndianUnpack16(sxu16 *pOut,const unsigned char *zBuf,sxu32 nLen)
{
if( nLen < sizeof(sxu16) ){
return SXERR_SHORT;
}
*pOut = zBuf[0] + (zBuf[1] <<8);
return SXRET_OK;
}
static sxi32 SyDosTimeFormat(sxu32 nDosDate,Sytm *pOut)
{
sxu16 nDate;
sxu16 nTime;
nDate = nDosDate >> 16;
nTime = nDosDate & 0xFFFF;
pOut->tm_isdst = 0;
pOut->tm_year = 1980 + (nDate >> 9);
pOut->tm_mon = (nDate % (1<<9))>>5;
pOut->tm_mday = (nDate % (1<<9))&0x1F;
pOut->tm_hour = nTime >> 11;
pOut->tm_min = (nTime % (1<<11)) >> 5;
pOut->tm_sec = ((nTime % (1<<11))& 0x1F )<<1;
return SXRET_OK;
}
/*
* Archive hashtable manager
*/
static sxi32 ArchiveHashGetEntry(SyArchive *pArch,const char *zName,sxu32 nLen,SyArchiveEntry **ppEntry)
{
SyArchiveEntry *pBucketEntry;
SyString sEntry;
sxu32 nHash;
nHash = pArch->xHash(zName,nLen);
pBucketEntry = pArch->apHash[nHash & (pArch->nSize - 1)];
SyStringInitFromBuf(&sEntry,zName,nLen);
for(;;){
if( pBucketEntry == 0 ){
break;
}
if( nHash == pBucketEntry->nHash && pArch->xCmp(&sEntry,&pBucketEntry->sFileName) == 0 ){
if( ppEntry ){
*ppEntry = pBucketEntry;
}
return SXRET_OK;
}
pBucketEntry = pBucketEntry->pNextHash;
}
return SXERR_NOTFOUND;
}
static void ArchiveHashBucketInstall(SyArchiveEntry **apTable,sxu32 nBucket,SyArchiveEntry *pEntry)
{
pEntry->pNextHash = apTable[nBucket];
if( apTable[nBucket] != 0 ){
apTable[nBucket]->pPrevHash = pEntry;
}
apTable[nBucket] = pEntry;
}
static sxi32 ArchiveHashGrowTable(SyArchive *pArch)
{
sxu32 nNewSize = pArch->nSize * 2;
SyArchiveEntry **apNew;
SyArchiveEntry *pEntry;
sxu32 n;
/* Allocate a new table */
apNew = (SyArchiveEntry **)SyMemBackendAlloc(pArch->pAllocator,nNewSize * sizeof(SyArchiveEntry *));
if( apNew == 0 ){
return SXRET_OK; /* Not so fatal,simply a performance hit */
}
SyZero(apNew,nNewSize * sizeof(SyArchiveEntry *));
/* Rehash old entries */
for( n = 0 , pEntry = pArch->pList ; n < pArch->nLoaded ; n++ , pEntry = pEntry->pNext ){
pEntry->pNextHash = pEntry->pPrevHash = 0;
ArchiveHashBucketInstall(apNew,pEntry->nHash & (nNewSize - 1),pEntry);
}
/* Release the old table */
SyMemBackendFree(pArch->pAllocator,pArch->apHash);
pArch->apHash = apNew;
pArch->nSize = nNewSize;
return SXRET_OK;
}
static sxi32 ArchiveHashInstallEntry(SyArchive *pArch,SyArchiveEntry *pEntry)
{
if( pArch->nLoaded > pArch->nSize * 3 ){
ArchiveHashGrowTable(&(*pArch));
}
pEntry->nHash = pArch->xHash(SyStringData(&pEntry->sFileName),SyStringLength(&pEntry->sFileName));
/* Install the entry in its bucket */
ArchiveHashBucketInstall(pArch->apHash,pEntry->nHash & (pArch->nSize - 1),pEntry);
MACRO_LD_PUSH(pArch->pList,pEntry);
pArch->nLoaded++;
return SXRET_OK;
}
/*
* Parse the End of central directory and report status
*/
static sxi32 ParseEndOfCentralDirectory(SyArchive *pArch,const unsigned char *zBuf)
{
sxu32 nMagic = 0; /* cc -O6 warning */
sxi32 rc;
/* Sanity check */
rc = SyLittleEndianUnpack32(&nMagic,zBuf,sizeof(sxu32));
if( /* rc != SXRET_OK || */nMagic != SXZIP_END_CENTRAL_MAGIC ){
return SXERR_CORRUPT;
}
/* # of entries */
rc = SyLittleEndianUnpack16((sxu16 *)&pArch->nEntry,&zBuf[8],sizeof(sxu16));
if( /* rc != SXRET_OK || */ pArch->nEntry > SXI16_HIGH /* SXU16_HIGH */ ){
return SXERR_CORRUPT;
}
/* Size of central directory */
rc = SyLittleEndianUnpack32(&pArch->nCentralSize,&zBuf[12],sizeof(sxu32));
if( /*rc != SXRET_OK ||*/ pArch->nCentralSize > SXI32_HIGH ){
return SXERR_CORRUPT;
}
/* Starting offset of central directory */
rc = SyLittleEndianUnpack32(&pArch->nCentralOfft,&zBuf[16],sizeof(sxu32));
if( /*rc != SXRET_OK ||*/ pArch->nCentralSize > SXI32_HIGH ){
return SXERR_CORRUPT;
}
return SXRET_OK;
}
/*
* Fill the zip entry with the appropriate information from the central directory
*/
static sxi32 GetCentralDirectoryEntry(SyArchive *pArch,SyArchiveEntry *pEntry,const unsigned char *zCentral,sxu32 *pNextOffset)
{
SyString *pName = &pEntry->sFileName; /* File name */
sxu16 nDosDate,nDosTime;
sxu16 nComment = 0 ;
sxu32 nMagic = 0; /* cc -O6 warning */
sxi32 rc;
nDosDate = nDosTime = 0; /* cc -O6 warning */
SXUNUSED(pArch);
/* Sanity check */
rc = SyLittleEndianUnpack32(&nMagic,zCentral,sizeof(sxu32));
if( /* rc != SXRET_OK || */ nMagic != SXZIP_CENTRAL_MAGIC ){
rc = SXERR_CORRUPT;
/*
* Try to recover by examing the next central directory record.
* Dont worry here,there is no risk of an infinite loop since
* the buffer size is delimited.
*/
/* pName->nByte = 0; nComment = 0; pName->nExtra = 0 */
goto update;
}
/*
* entry name length
*/
SyLittleEndianUnpack16((sxu16 *)&pName->nByte,&zCentral[28],sizeof(sxu16));
if( pName->nByte > SXI16_HIGH /* SXU16_HIGH */){
rc = SXERR_BIG;
goto update;
}
/* Extra information */
SyLittleEndianUnpack16(&pEntry->nExtra,&zCentral[30],sizeof(sxu16));
/* Comment length */
SyLittleEndianUnpack16(&nComment,&zCentral[32],sizeof(sxu16));
/* Compression method 0 == stored / 8 == deflated */
rc = SyLittleEndianUnpack16(&pEntry->nComprMeth,&zCentral[10],sizeof(sxu16));
/* DOS Timestamp */
SyLittleEndianUnpack16(&nDosTime,&zCentral[12],sizeof(sxu16));
SyLittleEndianUnpack16(&nDosDate,&zCentral[14],sizeof(sxu16));
SyDosTimeFormat((nDosDate << 16 | nDosTime),&pEntry->sFmt);
/* Little hack to fix month index */
pEntry->sFmt.tm_mon--;
/* CRC32 */
rc = SyLittleEndianUnpack32(&pEntry->nCrc,&zCentral[16],sizeof(sxu32));
/* Content size before compression */
rc = SyLittleEndianUnpack32(&pEntry->nByte,&zCentral[24],sizeof(sxu32));
if( pEntry->nByte > SXI32_HIGH ){
rc = SXERR_BIG;
goto update;
}
/*
* Content size after compression.
* Note that if the file is stored pEntry->nByte should be equal to pEntry->nByteCompr
*/
rc = SyLittleEndianUnpack32(&pEntry->nByteCompr,&zCentral[20],sizeof(sxu32));
if( pEntry->nByteCompr > SXI32_HIGH ){
rc = SXERR_BIG;
goto update;
}
/* Finally grab the contents offset */
SyLittleEndianUnpack32(&pEntry->nOfft,&zCentral[42],sizeof(sxu32));
if( pEntry->nOfft > SXI32_HIGH ){
rc = SXERR_BIG;
goto update;
}
rc = SXRET_OK;
update:
/* Update the offset to point to the next central directory record */
*pNextOffset = SXZIP_CENTRAL_HDRSZ + pName->nByte + pEntry->nExtra + nComment;
return rc; /* Report failure or success */
}
static sxi32 ZipFixOffset(SyArchiveEntry *pEntry,void *pSrc)
{
sxu16 nExtra,nNameLen;
unsigned char *zHdr;
nExtra = nNameLen = 0;
zHdr = (unsigned char *)pSrc;
zHdr = &zHdr[pEntry->nOfft];
if( SyMemcmp(zHdr,"PK\003\004",sizeof(sxu32)) != 0 ){
return SXERR_CORRUPT;
}
SyLittleEndianUnpack16(&nNameLen,&zHdr[26],sizeof(sxu16));
SyLittleEndianUnpack16(&nExtra,&zHdr[28],sizeof(sxu16));
/* Fix contents offset */
pEntry->nOfft += SXZIP_LOCAL_HDRSZ + nExtra + nNameLen;
return SXRET_OK;
}
/*
* Extract all valid entries from the central directory
*/
static sxi32 ZipExtract(SyArchive *pArch,const unsigned char *zCentral,sxu32 nLen,void *pSrc)
{
SyArchiveEntry *pEntry,*pDup;
const unsigned char *zEnd ; /* End of central directory */
sxu32 nIncr,nOfft; /* Central Offset */
SyString *pName; /* Entry name */
char *zName;
sxi32 rc;
nOfft = nIncr = 0;
zEnd = &zCentral[nLen];
for(;;){
if( &zCentral[nOfft] >= zEnd ){
break;
}
/* Add a new entry */
pEntry = (SyArchiveEntry *)SyMemBackendPoolAlloc(pArch->pAllocator,sizeof(SyArchiveEntry));
if( pEntry == 0 ){
break;
}
SyZero(pEntry,sizeof(SyArchiveEntry));
pEntry->nMagic = SXARCH_MAGIC;
nIncr = 0;
rc = GetCentralDirectoryEntry(&(*pArch),pEntry,&zCentral[nOfft],&nIncr);
if( rc == SXRET_OK ){
/* Fix the starting record offset so we can access entry contents correctly */
rc = ZipFixOffset(pEntry,pSrc);
}
if(rc != SXRET_OK ){
sxu32 nJmp = 0;
SyMemBackendPoolFree(pArch->pAllocator,pEntry);
/* Try to recover by brute-forcing for a valid central directory record */
if( SXRET_OK == SyBlobSearch((const void *)&zCentral[nOfft + nIncr],(sxu32)(zEnd - &zCentral[nOfft + nIncr]),
(const void *)"PK\001\002",sizeof(sxu32),&nJmp)){
nOfft += nIncr + nJmp; /* Check next entry */
continue;
}
break; /* Giving up,archive is hopelessly corrupted */
}
pName = &pEntry->sFileName;
pName->zString = (const char *)&zCentral[nOfft + SXZIP_CENTRAL_HDRSZ];
if( pName->nByte <= 0 || ( pEntry->nByte <= 0 && pName->zString[pName->nByte - 1] != '/') ){
/* Ignore zero length records (except folders) and records without names */
SyMemBackendPoolFree(pArch->pAllocator,pEntry);
nOfft += nIncr; /* Check next entry */
continue;
}
zName = SyMemBackendStrDup(pArch->pAllocator,pName->zString,pName->nByte);
if( zName == 0 ){
SyMemBackendPoolFree(pArch->pAllocator,pEntry);
nOfft += nIncr; /* Check next entry */
continue;
}
pName->zString = (const char *)zName;
/* Check for duplicates */
rc = ArchiveHashGetEntry(&(*pArch),pName->zString,pName->nByte,&pDup);
if( rc == SXRET_OK ){
/* Another entry with the same name exists ; link them together */
pEntry->pNextName = pDup->pNextName;
pDup->pNextName = pEntry;
pDup->nDup++;
}else{
/* Insert in hashtable */
ArchiveHashInstallEntry(pArch,pEntry);
}
nOfft += nIncr; /* Check next record */
}
pArch->pCursor = pArch->pList;
return pArch->nLoaded > 0 ? SXRET_OK : SXERR_EMPTY;
}
PH7_PRIVATE sxi32 SyZipExtractFromBuf(SyArchive *pArch,const char *zBuf,sxu32 nLen)
{
const unsigned char *zCentral,*zEnd;
sxi32 rc;
#if defined(UNTRUST)
if( SXARCH_INVALID(pArch) || zBuf == 0 ){
return SXERR_INVALID;
}
#endif
/* The miminal size of a zip archive:
* LOCAL_HDR_SZ + CENTRAL_HDR_SZ + END_OF_CENTRAL_HDR_SZ
* 30 46 22
*/
if( nLen < SXZIP_LOCAL_HDRSZ + SXZIP_CENTRAL_HDRSZ + SXZIP_END_CENTRAL_HDRSZ ){
return SXERR_CORRUPT; /* Don't bother processing return immediately */
}
zEnd = (unsigned char *)&zBuf[nLen - SXZIP_END_CENTRAL_HDRSZ];
/* Find the end of central directory */
while( ((sxu32)((unsigned char *)&zBuf[nLen] - zEnd) < (SXZIP_END_CENTRAL_HDRSZ + SXI16_HIGH)) &&
zEnd > (unsigned char *)zBuf && SyMemcmp(zEnd,"PK\005\006",sizeof(sxu32)) != 0 ){
zEnd--;
}
/* Parse the end of central directory */
rc = ParseEndOfCentralDirectory(&(*pArch),zEnd);
if( rc != SXRET_OK ){
return rc;
}
/* Find the starting offset of the central directory */
zCentral = &zEnd[-(sxi32)pArch->nCentralSize];
if( zCentral <= (unsigned char *)zBuf || SyMemcmp(zCentral,"PK\001\002",sizeof(sxu32)) != 0 ){
if( pArch->nCentralOfft >= nLen ){
/* Corrupted central directory offset */
return SXERR_CORRUPT;
}
zCentral = (unsigned char *)&zBuf[pArch->nCentralOfft];
if( SyMemcmp(zCentral,"PK\001\002",sizeof(sxu32)) != 0 ){
/* Corrupted zip archive */
return SXERR_CORRUPT;
}
/* Fall thru and extract all valid entries from the central directory */
}
rc = ZipExtract(&(*pArch),zCentral,(sxu32)(zEnd - zCentral),(void *)zBuf);
return rc;
}
/*
* Default comparison function.
*/
static sxi32 ArchiveHashCmp(const SyString *pStr1,const SyString *pStr2)
{
sxi32 rc;
rc = SyStringCmp(pStr1,pStr2,SyMemcmp);
return rc;
}
PH7_PRIVATE sxi32 SyArchiveInit(SyArchive *pArch,SyMemBackend *pAllocator,ProcHash xHash,ProcRawStrCmp xCmp)
{
SyArchiveEntry **apHash;
#if defined(UNTRUST)
if( pArch == 0 ){
return SXERR_EMPTY;
}
#endif
SyZero(pArch,sizeof(SyArchive));
/* Allocate a new hashtable */
apHash = (SyArchiveEntry **)SyMemBackendAlloc(&(*pAllocator),SXARCHIVE_HASH_SIZE * sizeof(SyArchiveEntry *));
if( apHash == 0){
return SXERR_MEM;
}
SyZero(apHash,SXARCHIVE_HASH_SIZE * sizeof(SyArchiveEntry *));
pArch->apHash = apHash;
pArch->xHash = xHash ? xHash : SyBinHash;
pArch->xCmp = xCmp ? xCmp : ArchiveHashCmp;
pArch->nSize = SXARCHIVE_HASH_SIZE;
pArch->pAllocator = &(*pAllocator);
pArch->nMagic = SXARCH_MAGIC;
return SXRET_OK;
}
static sxi32 ArchiveReleaseEntry(SyMemBackend *pAllocator,SyArchiveEntry *pEntry)
{
SyArchiveEntry *pDup = pEntry->pNextName;
SyArchiveEntry *pNextDup;
/* Release duplicates first since there are not stored in the hashtable */
for(;;){
if( pEntry->nDup == 0 ){
break;
}
pNextDup = pDup->pNextName;
pDup->nMagic = 0x2661;
SyMemBackendFree(pAllocator,(void *)SyStringData(&pDup->sFileName));
SyMemBackendPoolFree(pAllocator,pDup);
pDup = pNextDup;
pEntry->nDup--;
}
pEntry->nMagic = 0x2661;
SyMemBackendFree(pAllocator,(void *)SyStringData(&pEntry->sFileName));
SyMemBackendPoolFree(pAllocator,pEntry);
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyArchiveRelease(SyArchive *pArch)
{
SyArchiveEntry *pEntry,*pNext;
pEntry = pArch->pList;
for(;;){
if( pArch->nLoaded < 1 ){
break;
}
pNext = pEntry->pNext;
MACRO_LD_REMOVE(pArch->pList,pEntry);
ArchiveReleaseEntry(pArch->pAllocator,pEntry);
pEntry = pNext;
pArch->nLoaded--;
}
SyMemBackendFree(pArch->pAllocator,pArch->apHash);
pArch->pCursor = 0;
pArch->nMagic = 0x2626;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyArchiveResetLoopCursor(SyArchive *pArch)
{
pArch->pCursor = pArch->pList;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyArchiveGetNextEntry(SyArchive *pArch,SyArchiveEntry **ppEntry)
{
SyArchiveEntry *pNext;
if( pArch->pCursor == 0 ){
/* Rewind the cursor */
pArch->pCursor = pArch->pList;
return SXERR_EOF;
}
*ppEntry = pArch->pCursor;
pNext = pArch->pCursor->pNext;
/* Advance the cursor to the next entry */
pArch->pCursor = pNext;
return SXRET_OK;
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
/*
* Psuedo Random Number Generator (PRNG)
* @authors: SQLite authors <http://www.sqlite.org/>
* @status: Public Domain
* NOTE:
* Nothing in this file or anywhere else in the library does any kind of
* encryption.The RC4 algorithm is being used as a PRNG (pseudo-random
* number generator) not as an encryption device.
*/
#define SXPRNG_MAGIC 0x13C4
#ifdef __UNIXES__
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <time.h>
#include <sys/time.h>
#endif
static sxi32 SyOSUtilRandomSeed(void *pBuf,sxu32 nLen,void *pUnused)
{
char *zBuf = (char *)pBuf;
#ifdef __WINNT__
DWORD nProcessID; /* Yes,keep it uninitialized when compiling using the MinGW32 builds tools */
#elif defined(__UNIXES__)
pid_t pid;
int fd;
#else
char zGarbage[128]; /* Yes,keep this buffer uninitialized */
#endif
SXUNUSED(pUnused);
#ifdef __WINNT__
#ifndef __MINGW32__
nProcessID = GetProcessId(GetCurrentProcess());
#endif
SyMemcpy((const void *)&nProcessID,zBuf,SXMIN(nLen,sizeof(DWORD)));
if( (sxu32)(&zBuf[nLen] - &zBuf[sizeof(DWORD)]) >= sizeof(SYSTEMTIME) ){
GetSystemTime((LPSYSTEMTIME)&zBuf[sizeof(DWORD)]);
}
#elif defined(__UNIXES__)
fd = open("/dev/urandom",O_RDONLY);
if (fd >= 0 ){
if( read(fd,zBuf,nLen) > 0 ){
close(fd);
return SXRET_OK;
}
/* FALL THRU */
}
close(fd);
pid = getpid();
SyMemcpy((const void *)&pid,zBuf,SXMIN(nLen,sizeof(pid_t)));
if( &zBuf[nLen] - &zBuf[sizeof(pid_t)] >= (int)sizeof(struct timeval) ){
gettimeofday((struct timeval *)&zBuf[sizeof(pid_t)],0);
}
#else
/* Fill with uninitialized data */
SyMemcpy(zGarbage,zBuf,SXMIN(nLen,sizeof(zGarbage)));
#endif
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyRandomnessInit(SyPRNGCtx *pCtx,ProcRandomSeed xSeed,void * pUserData)
{
char zSeed[256];
sxu8 t;
sxi32 rc;
sxu32 i;
if( pCtx->nMagic == SXPRNG_MAGIC ){
return SXRET_OK; /* Already initialized */
}
/* Initialize the state of the random number generator once,
** the first time this routine is called.The seed value does
** not need to contain a lot of randomness since we are not
** trying to do secure encryption or anything like that...
*/
if( xSeed == 0 ){
xSeed = SyOSUtilRandomSeed;
}
rc = xSeed(zSeed,sizeof(zSeed),pUserData);
if( rc != SXRET_OK ){
return rc;
}
pCtx->i = pCtx->j = 0;
for(i=0; i < SX_ARRAYSIZE(pCtx->s) ; i++){
pCtx->s[i] = (unsigned char)i;
}
for(i=0; i < sizeof(zSeed) ; i++){
pCtx->j += pCtx->s[i] + zSeed[i];
t = pCtx->s[pCtx->j];
pCtx->s[pCtx->j] = pCtx->s[i];
pCtx->s[i] = t;
}
pCtx->nMagic = SXPRNG_MAGIC;
return SXRET_OK;
}
/*
* Get a single 8-bit random value using the RC4 PRNG.
*/
static sxu8 randomByte(SyPRNGCtx *pCtx)
{
sxu8 t;
/* Generate and return single random byte */
pCtx->i++;
t = pCtx->s[pCtx->i];
pCtx->j += t;
pCtx->s[pCtx->i] = pCtx->s[pCtx->j];
pCtx->s[pCtx->j] = t;
t += pCtx->s[pCtx->i];
return pCtx->s[t];
}
PH7_PRIVATE sxi32 SyRandomness(SyPRNGCtx *pCtx,void *pBuf,sxu32 nLen)
{
unsigned char *zBuf = (unsigned char *)pBuf;
unsigned char *zEnd = &zBuf[nLen];
#if defined(UNTRUST)
if( pCtx == 0 || pBuf == 0 || nLen <= 0 ){
return SXERR_EMPTY;
}
#endif
if(pCtx->nMagic != SXPRNG_MAGIC ){
return SXERR_CORRUPT;
}
for(;;){
if( zBuf >= zEnd ){break;} zBuf[0] = randomByte(pCtx); zBuf++;
if( zBuf >= zEnd ){break;} zBuf[0] = randomByte(pCtx); zBuf++;
if( zBuf >= zEnd ){break;} zBuf[0] = randomByte(pCtx); zBuf++;
if( zBuf >= zEnd ){break;} zBuf[0] = randomByte(pCtx); zBuf++;
}
return SXRET_OK;
}
#ifndef PH7_DISABLE_BUILTIN_FUNC
#ifndef PH7_DISABLE_HASH_FUNC
/* SyRunTimeApi: sxhash.c */
/*
* This code implements the MD5 message-digest algorithm.
* The algorithm is due to Ron Rivest.This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* This code is in the public domain; do with it what you wish.
*
* Equivalent code is available from RSA Data Security, Inc.
* This code has been tested against that, and is equivalent,
* except that you don't need to include two pages of legalese
* with every copy.
*
* To compute the message digest of a chunk of bytes, declare an
* MD5Context structure, pass it to MD5Init, call MD5Update as
* needed on buffers full of bytes, and then call MD5Final, which
* will fill a supplied 16-byte array with the digest.
*/
#define SX_MD5_BINSZ 16
#define SX_MD5_HEXSZ 32
/*
* Note: this code is harmless on little-endian machines.
*/
static void byteReverse (unsigned char *buf, unsigned longs)
{
sxu32 t;
do {
t = (sxu32)((unsigned)buf[3]<<8 | buf[2]) << 16 |
((unsigned)buf[1]<<8 | buf[0]);
*(sxu32*)buf = t;
buf += 4;
} while (--longs);
}
/* The four core functions - F1 is optimized somewhat */
/* #define F1(x, y, z) (x & y | ~x & z) */
#ifdef F1
#undef F1
#endif
#ifdef F2
#undef F2
#endif
#ifdef F3
#undef F3
#endif
#ifdef F4
#undef F4
#endif
#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) F1(z, x, y)
#define F3(x, y, z) (x ^ y ^ z)
#define F4(x, y, z) (y ^ (x | ~z))
/* This is the central step in the MD5 algorithm.*/
#define SX_MD5STEP(f, w, x, y, z, data, s) \
( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
/*
* The core of the MD5 algorithm, this alters an existing MD5 hash to
* reflect the addition of 16 longwords of new data.MD5Update blocks
* the data and converts bytes into longwords for this routine.
*/
static void MD5Transform(sxu32 buf[4], const sxu32 in[16])
{
register sxu32 a, b, c, d;
a = buf[0];
b = buf[1];
c = buf[2];
d = buf[3];
SX_MD5STEP(F1, a, b, c, d, in[ 0]+0xd76aa478, 7);
SX_MD5STEP(F1, d, a, b, c, in[ 1]+0xe8c7b756, 12);
SX_MD5STEP(F1, c, d, a, b, in[ 2]+0x242070db, 17);
SX_MD5STEP(F1, b, c, d, a, in[ 3]+0xc1bdceee, 22);
SX_MD5STEP(F1, a, b, c, d, in[ 4]+0xf57c0faf, 7);
SX_MD5STEP(F1, d, a, b, c, in[ 5]+0x4787c62a, 12);
SX_MD5STEP(F1, c, d, a, b, in[ 6]+0xa8304613, 17);
SX_MD5STEP(F1, b, c, d, a, in[ 7]+0xfd469501, 22);
SX_MD5STEP(F1, a, b, c, d, in[ 8]+0x698098d8, 7);
SX_MD5STEP(F1, d, a, b, c, in[ 9]+0x8b44f7af, 12);
SX_MD5STEP(F1, c, d, a, b, in[10]+0xffff5bb1, 17);
SX_MD5STEP(F1, b, c, d, a, in[11]+0x895cd7be, 22);
SX_MD5STEP(F1, a, b, c, d, in[12]+0x6b901122, 7);
SX_MD5STEP(F1, d, a, b, c, in[13]+0xfd987193, 12);
SX_MD5STEP(F1, c, d, a, b, in[14]+0xa679438e, 17);
SX_MD5STEP(F1, b, c, d, a, in[15]+0x49b40821, 22);
SX_MD5STEP(F2, a, b, c, d, in[ 1]+0xf61e2562, 5);
SX_MD5STEP(F2, d, a, b, c, in[ 6]+0xc040b340, 9);
SX_MD5STEP(F2, c, d, a, b, in[11]+0x265e5a51, 14);
SX_MD5STEP(F2, b, c, d, a, in[ 0]+0xe9b6c7aa, 20);
SX_MD5STEP(F2, a, b, c, d, in[ 5]+0xd62f105d, 5);
SX_MD5STEP(F2, d, a, b, c, in[10]+0x02441453, 9);
SX_MD5STEP(F2, c, d, a, b, in[15]+0xd8a1e681, 14);
SX_MD5STEP(F2, b, c, d, a, in[ 4]+0xe7d3fbc8, 20);
SX_MD5STEP(F2, a, b, c, d, in[ 9]+0x21e1cde6, 5);
SX_MD5STEP(F2, d, a, b, c, in[14]+0xc33707d6, 9);
SX_MD5STEP(F2, c, d, a, b, in[ 3]+0xf4d50d87, 14);
SX_MD5STEP(F2, b, c, d, a, in[ 8]+0x455a14ed, 20);
SX_MD5STEP(F2, a, b, c, d, in[13]+0xa9e3e905, 5);
SX_MD5STEP(F2, d, a, b, c, in[ 2]+0xfcefa3f8, 9);
SX_MD5STEP(F2, c, d, a, b, in[ 7]+0x676f02d9, 14);
SX_MD5STEP(F2, b, c, d, a, in[12]+0x8d2a4c8a, 20);
SX_MD5STEP(F3, a, b, c, d, in[ 5]+0xfffa3942, 4);
SX_MD5STEP(F3, d, a, b, c, in[ 8]+0x8771f681, 11);
SX_MD5STEP(F3, c, d, a, b, in[11]+0x6d9d6122, 16);
SX_MD5STEP(F3, b, c, d, a, in[14]+0xfde5380c, 23);
SX_MD5STEP(F3, a, b, c, d, in[ 1]+0xa4beea44, 4);
SX_MD5STEP(F3, d, a, b, c, in[ 4]+0x4bdecfa9, 11);
SX_MD5STEP(F3, c, d, a, b, in[ 7]+0xf6bb4b60, 16);
SX_MD5STEP(F3, b, c, d, a, in[10]+0xbebfbc70, 23);
SX_MD5STEP(F3, a, b, c, d, in[13]+0x289b7ec6, 4);
SX_MD5STEP(F3, d, a, b, c, in[ 0]+0xeaa127fa, 11);
SX_MD5STEP(F3, c, d, a, b, in[ 3]+0xd4ef3085, 16);
SX_MD5STEP(F3, b, c, d, a, in[ 6]+0x04881d05, 23);
SX_MD5STEP(F3, a, b, c, d, in[ 9]+0xd9d4d039, 4);
SX_MD5STEP(F3, d, a, b, c, in[12]+0xe6db99e5, 11);
SX_MD5STEP(F3, c, d, a, b, in[15]+0x1fa27cf8, 16);
SX_MD5STEP(F3, b, c, d, a, in[ 2]+0xc4ac5665, 23);
SX_MD5STEP(F4, a, b, c, d, in[ 0]+0xf4292244, 6);
SX_MD5STEP(F4, d, a, b, c, in[ 7]+0x432aff97, 10);
SX_MD5STEP(F4, c, d, a, b, in[14]+0xab9423a7, 15);
SX_MD5STEP(F4, b, c, d, a, in[ 5]+0xfc93a039, 21);
SX_MD5STEP(F4, a, b, c, d, in[12]+0x655b59c3, 6);
SX_MD5STEP(F4, d, a, b, c, in[ 3]+0x8f0ccc92, 10);
SX_MD5STEP(F4, c, d, a, b, in[10]+0xffeff47d, 15);
SX_MD5STEP(F4, b, c, d, a, in[ 1]+0x85845dd1, 21);
SX_MD5STEP(F4, a, b, c, d, in[ 8]+0x6fa87e4f, 6);
SX_MD5STEP(F4, d, a, b, c, in[15]+0xfe2ce6e0, 10);
SX_MD5STEP(F4, c, d, a, b, in[ 6]+0xa3014314, 15);
SX_MD5STEP(F4, b, c, d, a, in[13]+0x4e0811a1, 21);
SX_MD5STEP(F4, a, b, c, d, in[ 4]+0xf7537e82, 6);
SX_MD5STEP(F4, d, a, b, c, in[11]+0xbd3af235, 10);
SX_MD5STEP(F4, c, d, a, b, in[ 2]+0x2ad7d2bb, 15);
SX_MD5STEP(F4, b, c, d, a, in[ 9]+0xeb86d391, 21);
buf[0] += a;
buf[1] += b;
buf[2] += c;
buf[3] += d;
}
/*
* Update context to reflect the concatenation of another buffer full
* of bytes.
*/
PH7_PRIVATE void MD5Update(MD5Context *ctx, const unsigned char *buf, unsigned int len)
{
sxu32 t;
/* Update bitcount */
t = ctx->bits[0];
if ((ctx->bits[0] = t + ((sxu32)len << 3)) < t)
ctx->bits[1]++; /* Carry from low to high */
ctx->bits[1] += len >> 29;
t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
/* Handle any leading odd-sized chunks */
if ( t ) {
unsigned char *p = (unsigned char *)ctx->in + t;
t = 64-t;
if (len < t) {
SyMemcpy(buf,p,len);
return;
}
SyMemcpy(buf,p,t);
byteReverse(ctx->in, 16);
MD5Transform(ctx->buf, (sxu32*)ctx->in);
buf += t;
len -= t;
}
/* Process data in 64-byte chunks */
while (len >= 64) {
SyMemcpy(buf,ctx->in,64);
byteReverse(ctx->in, 16);
MD5Transform(ctx->buf, (sxu32*)ctx->in);
buf += 64;
len -= 64;
}
/* Handle any remaining bytes of data.*/
SyMemcpy(buf,ctx->in,len);
}
/*
* Final wrapup - pad to 64-byte boundary with the bit pattern
* 1 0* (64-bit count of bits processed, MSB-first)
*/
PH7_PRIVATE void MD5Final(unsigned char digest[16], MD5Context *ctx){
unsigned count;
unsigned char *p;
/* Compute number of bytes mod 64 */
count = (ctx->bits[0] >> 3) & 0x3F;
/* Set the first char of padding to 0x80.This is safe since there is
always at least one byte free */
p = ctx->in + count;
*p++ = 0x80;
/* Bytes of padding needed to make 64 bytes */
count = 64 - 1 - count;
/* Pad out to 56 mod 64 */
if (count < 8) {
/* Two lots of padding: Pad the first block to 64 bytes */
SyZero(p,count);
byteReverse(ctx->in, 16);
MD5Transform(ctx->buf, (sxu32*)ctx->in);
/* Now fill the next block with 56 bytes */
SyZero(ctx->in,56);
} else {
/* Pad block to 56 bytes */
SyZero(p,count-8);
}
byteReverse(ctx->in, 14);
/* Append length in bits and transform */
((sxu32*)ctx->in)[ 14 ] = ctx->bits[0];
((sxu32*)ctx->in)[ 15 ] = ctx->bits[1];
MD5Transform(ctx->buf, (sxu32*)ctx->in);
byteReverse((unsigned char *)ctx->buf, 4);
SyMemcpy(ctx->buf,digest,0x10);
SyZero(ctx,sizeof(ctx)); /* In case it's sensitive */
}
#undef F1
#undef F2
#undef F3
#undef F4
PH7_PRIVATE sxi32 MD5Init(MD5Context *pCtx)
{
pCtx->buf[0] = 0x67452301;
pCtx->buf[1] = 0xefcdab89;
pCtx->buf[2] = 0x98badcfe;
pCtx->buf[3] = 0x10325476;
pCtx->bits[0] = 0;
pCtx->bits[1] = 0;
return SXRET_OK;
}
PH7_PRIVATE sxi32 SyMD5Compute(const void *pIn,sxu32 nLen,unsigned char zDigest[16])
{
MD5Context sCtx;
MD5Init(&sCtx);
MD5Update(&sCtx,(const unsigned char *)pIn,nLen);
MD5Final(zDigest,&sCtx);
return SXRET_OK;
}
/*
* SHA-1 in C
* By Steve Reid <steve@edmweb.com>
* Status: Public Domain
*/
/*
* blk0() and blk() perform the initial expand.
* I got the idea of expanding during the round function from SSLeay
*
* blk0le() for little-endian and blk0be() for big-endian.
*/
#if __GNUC__ && (defined(__i386__) || defined(__x86_64__))
/*
* GCC by itself only generates left rotates. Use right rotates if
* possible to be kinder to dinky implementations with iterative rotate
* instructions.
*/
#define SHA_ROT(op, x, k) \
({ unsigned int y; asm(op " %1,%0" : "=r" (y) : "I" (k), "0" (x)); y; })
#define rol(x,k) SHA_ROT("roll", x, k)
#define ror(x,k) SHA_ROT("rorl", x, k)
#else
/* Generic C equivalent */
#define SHA_ROT(x,l,r) ((x) << (l) | (x) >> (r))
#define rol(x,k) SHA_ROT(x,k,32-(k))
#define ror(x,k) SHA_ROT(x,32-(k),k)
#endif
#define blk0le(i) (block[i] = (ror(block[i],8)&0xFF00FF00) \
|(rol(block[i],8)&0x00FF00FF))
#define blk0be(i) block[i]
#define blk(i) (block[i&15] = rol(block[(i+13)&15]^block[(i+8)&15] \
^block[(i+2)&15]^block[i&15],1))
/*
* (R0+R1), R2, R3, R4 are the different operations (rounds) used in SHA1
*
* Rl0() for little-endian and Rb0() for big-endian. Endianness is
* determined at run-time.
*/
#define Rl0(v,w,x,y,z,i) \
z+=((w&(x^y))^y)+blk0le(i)+0x5A827999+rol(v,5);w=ror(w,2);
#define Rb0(v,w,x,y,z,i) \
z+=((w&(x^y))^y)+blk0be(i)+0x5A827999+rol(v,5);w=ror(w,2);
#define R1(v,w,x,y,z,i) \
z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=ror(w,2);
#define R2(v,w,x,y,z,i) \
z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=ror(w,2);
#define R3(v,w,x,y,z,i) \
z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=ror(w,2);
#define R4(v,w,x,y,z,i) \
z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=ror(w,2);
/*
* Hash a single 512-bit block. This is the core of the algorithm.
*/
#define a qq[0]
#define b qq[1]
#define c qq[2]
#define d qq[3]
#define e qq[4]
static void SHA1Transform(unsigned int state[5], const unsigned char buffer[64])
{
unsigned int qq[5]; /* a, b, c, d, e; */
static int one = 1;
unsigned int block[16];
SyMemcpy(buffer,(void *)block,64);
SyMemcpy(state,qq,5*sizeof(unsigned int));
/* Copy context->state[] to working vars */
/*
a = state[0];
b = state[1];
c = state[2];
d = state[3];
e = state[4];
*/
/* 4 rounds of 20 operations each. Loop unrolled. */
if( 1 == *(unsigned char*)&one ){
Rl0(a,b,c,d,e, 0); Rl0(e,a,b,c,d, 1); Rl0(d,e,a,b,c, 2); Rl0(c,d,e,a,b, 3);
Rl0(b,c,d,e,a, 4); Rl0(a,b,c,d,e, 5); Rl0(e,a,b,c,d, 6); Rl0(d,e,a,b,c, 7);
Rl0(c,d,e,a,b, 8); Rl0(b,c,d,e,a, 9); Rl0(a,b,c,d,e,10); Rl0(e,a,b,c,d,11);
Rl0(d,e,a,b,c,12); Rl0(c,d,e,a,b,13); Rl0(b,c,d,e,a,14); Rl0(a,b,c,d,e,15);
}else{
Rb0(a,b,c,d,e, 0); Rb0(e,a,b,c,d, 1); Rb0(d,e,a,b,c, 2); Rb0(c,d,e,a,b, 3);
Rb0(b,c,d,e,a, 4); Rb0(a,b,c,d,e, 5); Rb0(e,a,b,c,d, 6); Rb0(d,e,a,b,c, 7);
Rb0(c,d,e,a,b, 8); Rb0(b,c,d,e,a, 9); Rb0(a,b,c,d,e,10); Rb0(e,a,b,c,d,11);
Rb0(d,e,a,b,c,12); Rb0(c,d,e,a,b,13); Rb0(b,c,d,e,a,14); Rb0(a,b,c,d,e,15);
}
R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
/* Add the working vars back into context.state[] */
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
state[4] += e;
}
#undef a
#undef b
#undef c
#undef d
#undef e
/*
* SHA1Init - Initialize new context
*/
PH7_PRIVATE void SHA1Init(SHA1Context *context){
/* SHA1 initialization constants */
context->state[0] = 0x67452301;
context->state[1] = 0xEFCDAB89;
context->state[2] = 0x98BADCFE;
context->state[3] = 0x10325476;
context->state[4] = 0xC3D2E1F0;
context->count[0] = context->count[1] = 0;
}
/*
* Run your data through this.
*/
PH7_PRIVATE void SHA1Update(SHA1Context *context,const unsigned char *data,unsigned int len){
unsigned int i, j;
j = context->count[0];
if ((context->count[0] += len << 3) < j)
context->count[1] += (len>>29)+1;
j = (j >> 3) & 63;
if ((j + len) > 63) {
(void)SyMemcpy(data,&context->buffer[j], (i = 64-j));
SHA1Transform(context->state, context->buffer);
for ( ; i + 63 < len; i += 64)
SHA1Transform(context->state, &data[i]);
j = 0;
} else {
i = 0;
}
(void)SyMemcpy(&data[i],&context->buffer[j],len - i);
}
/*
* Add padding and return the message digest.
*/
PH7_PRIVATE void SHA1Final(SHA1Context *context, unsigned char digest[20]){
unsigned int i;
unsigned char finalcount[8];
for (i = 0; i < 8; i++) {
finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)]
>> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */
}
SHA1Update(context, (const unsigned char *)"\200", 1);
while ((context->count[0] & 504) != 448)
SHA1Update(context, (const unsigned char *)"\0", 1);
SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */
if (digest) {
for (i = 0; i < 20; i++)
digest[i] = (unsigned char)
((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
}
}
#undef Rl0
#undef Rb0
#undef R1
#undef R2
#undef R3
#undef R4
PH7_PRIVATE sxi32 SySha1Compute(const void *pIn,sxu32 nLen,unsigned char zDigest[20])
{
SHA1Context sCtx;
SHA1Init(&sCtx);
SHA1Update(&sCtx,(const unsigned char *)pIn,nLen);
SHA1Final(&sCtx,zDigest);
return SXRET_OK;
}
static const sxu32 crc32_table[] = {
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
};
#define CRC32C(c,d) (c = ( crc32_table[(c ^ (d)) & 0xFF] ^ (c>>8) ) )
static sxu32 SyCrc32Update(sxu32 crc32,const void *pSrc,sxu32 nLen)
{
register unsigned char *zIn = (unsigned char *)pSrc;
unsigned char *zEnd;
if( zIn == 0 ){
return crc32;
}
zEnd = &zIn[nLen];
for(;;){
if(zIn >= zEnd ){ break; } CRC32C(crc32,zIn[0]); zIn++;
if(zIn >= zEnd ){ break; } CRC32C(crc32,zIn[0]); zIn++;
if(zIn >= zEnd ){ break; } CRC32C(crc32,zIn[0]); zIn++;
if(zIn >= zEnd ){ break; } CRC32C(crc32,zIn[0]); zIn++;
}
return crc32;
}
PH7_PRIVATE sxu32 SyCrc32(const void *pSrc,sxu32 nLen)
{
return SyCrc32Update(SXU32_HIGH,pSrc,nLen);
}
#endif /* PH7_DISABLE_HASH_FUNC */
#endif /* PH7_DISABLE_BUILTIN_FUNC */
#ifndef PH7_DISABLE_BUILTIN_FUNC
PH7_PRIVATE sxi32 SyBinToHexConsumer(const void *pIn,sxu32 nLen,ProcConsumer xConsumer,void *pConsumerData)
{
static const unsigned char zHexTab[] = "0123456789abcdef";
const unsigned char *zIn,*zEnd;
unsigned char zOut[3];
sxi32 rc;
#if defined(UNTRUST)
if( pIn == 0 || xConsumer == 0 ){
return SXERR_EMPTY;
}
#endif
zIn = (const unsigned char *)pIn;
zEnd = &zIn[nLen];
for(;;){
if( zIn >= zEnd ){
break;
}
zOut[0] = zHexTab[zIn[0] >> 4]; zOut[1] = zHexTab[zIn[0] & 0x0F];
rc = xConsumer((const void *)zOut,sizeof(char)*2,pConsumerData);
if( rc != SXRET_OK ){
return rc;
}
zIn++;
}
return SXRET_OK;
}
#endif /* PH7_DISABLE_BUILTIN_FUNC */
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