/* * Symisc JX9: A Highly Efficient Embeddable Scripting Engine Based on JSON. * Copyright (C) 2012-2013, Symisc Systems http://jx9.symisc.net/ * Version 1.7.2 * 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://jx9.symisc.net/ */ /* $SymiscID: lib.c v5.1 Win7 2012-08-08 04:19 stable $ */ /* * 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. */ #ifndef JX9_AMALGAMATION #include "jx9Int.h" #endif #if defined(__WINNT__) #include #else #include #endif #if defined(JX9_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() */ }; JX9_PRIVATE const SyMutexMethods * SyMutexExportMethods(void) { return &sWinMutexMethods; } #elif defined(__UNIXES__) #include 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() */ }; JX9_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() */ }; JX9_PRIVATE const SyMutexMethods * SyMutexExportMethods(void) { return &sDummyMutexMethods; } #endif /* __WINNT__ */ #endif /* JX9_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 */ JX9_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); } JX9_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 JX9_DISABLE_BUILTIN_FUNC JX9_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 /* JX9_DISABLE_BUILTIN_FUNC */ JX9_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 JX9_DISABLE_BUILTIN_FUNC JX9_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 JX9_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])); } JX9_PRIVATE 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 */ JX9_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++; } } JX9_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; } JX9_PRIVATE sxu32 SyMemcpy(const void *pSrc, void *pDest, sxu32 nLen) { if( pSrc == 0 || pDest == 0 ){ return 0; } 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]; } JX9_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]; } JX9_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; } JX9_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(JX9_ENABLE_THREADS) JX9_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; } JX9_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]; } JX9_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; } JX9_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; } JX9_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 JX9_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; } JX9_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; } JX9_PRIVATE sxi32 SyMemBackendInitFromParent(SyMemBackend *pBackend,const 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; } JX9_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 rc; } JX9_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; } JX9_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; } JX9_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; } JX9_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; } JX9_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; } JX9_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; } JX9_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; } JX9_PRIVATE sxi32 SyBlobDup(SyBlob *pSrc, SyBlob *pDest) { sxi32 rc = SXRET_OK; if( pSrc->nByte > 0 ){ rc = SyBlobAppend(&(*pDest), pSrc->pBlob, pSrc->nByte); } return rc; } JX9_PRIVATE sxi32 SyBlobReset(SyBlob *pBlob) { pBlob->nByte = 0; if( pBlob->nFlags & SXBLOB_RDONLY ){ /* Read-only (Not malloced chunk) */ pBlob->pBlob = 0; pBlob->mByte = 0; pBlob->nFlags &= ~SXBLOB_RDONLY; } return SXRET_OK; } JX9_PRIVATE sxi32 SyBlobTruncate(SyBlob *pBlob,sxu32 nNewLen) { if( nNewLen < pBlob->nByte ){ pBlob->nByte = nNewLen; } return SXRET_OK; } JX9_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 JX9_DISABLE_BUILTIN_FUNC JX9_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 /* JX9_DISABLE_BUILTIN_FUNC */ /* SyRunTimeApi:sxds.c */ JX9_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; } JX9_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; } JX9_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; } JX9_PRIVATE sxi32 SySetReset(SySet *pSet) { pSet->nUsed = 0; pSet->nCursor = 0; return SXRET_OK; } JX9_PRIVATE sxi32 SySetResetCursor(SySet *pSet) { pSet->nCursor = 0; return SXRET_OK; } JX9_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; } JX9_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; } JX9_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]; } JX9_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; } JX9_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) JX9_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; } JX9_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; } JX9_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; } JX9_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; } JX9_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; } JX9_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; } /* SyRunTimeApi:sxutils.c */ JX9_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" JX9_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; } JX9_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; } JX9_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; } JX9_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; } JX9_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; } JX9_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; } JX9_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 */ JX9_PRIVATE 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; } #ifndef JX9_DISABLE_BUILTIN_FUNC JX9_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; } JX9_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>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 /* JX9_DISABLE_BUILTIN_FUNC */ #define INVALID_LEXER(LEX) ( LEX == 0 || LEX->xTokenizer == 0 ) JX9_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; } JX9_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; } JX9_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 JX9_DISABLE_BUILTIN_FUNC #define SAFE_HTTP(C) (SyisAlphaNum(c) || c == '_' || c == '-' || c == '$' || c == '.' ) JX9_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 /* JX9_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; } JX9_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 JX9_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 ]; } JX9_PRIVATE const char * SyTimeGetDay(sxi32 iDay) { return GetDay(iDay); } JX9_PRIVATE const char * SyTimeGetMonth(sxi32 iMonth) { return GetMonth(iMonth); } #endif /* JX9_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 object 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 && precisioncharset; 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+precision0 || 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=0 && precisionzString == 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; } JX9_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; } JX9_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; } JX9_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; } JX9_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 JX9_DISABLE_BUILTIN_FUNC /* * 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; } /* * 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; } JX9_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; } JX9_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; } JX9_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; } JX9_PRIVATE sxi32 SyArchiveResetLoopCursor(SyArchive *pArch) { pArch->pCursor = pArch->pList; return SXRET_OK; } JX9_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 /* JX9_DISABLE_BUILTIN_FUNC */ /* * Psuedo Random Number Generator (PRNG) * @authors: SQLite authors * @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 #include #include #include #include #include #include #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 ){ return SXRET_OK; } /* FALL THRU */ } 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; } JX9_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]; } JX9_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 JX9_DISABLE_BUILTIN_FUNC #ifndef JX9_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<>(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. */ JX9_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) */ JX9_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 JX9_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; } JX9_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 * 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 */ JX9_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. */ JX9_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. */ JX9_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 JX9_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; } JX9_PRIVATE sxu32 SyCrc32(const void *pSrc, sxu32 nLen) { return SyCrc32Update(SXU32_HIGH, pSrc, nLen); } #endif /* JX9_DISABLE_HASH_FUNC */ #endif /* JX9_DISABLE_BUILTIN_FUNC */ #ifndef JX9_DISABLE_BUILTIN_FUNC JX9_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 /* JX9_DISABLE_BUILTIN_FUNC */ JX9_PRIVATE void SyBigEndianPack32(unsigned char *buf,sxu32 nb) { buf[3] = nb & 0xFF ; nb >>=8; buf[2] = nb & 0xFF ; nb >>=8; buf[1] = nb & 0xFF ; nb >>=8; buf[0] = (unsigned char)nb ; } JX9_PRIVATE void SyBigEndianUnpack32(const unsigned char *buf,sxu32 *uNB) { *uNB = buf[3] + (buf[2] << 8) + (buf[1] << 16) + (buf[0] << 24); } JX9_PRIVATE void SyBigEndianPack16(unsigned char *buf,sxu16 nb) { buf[1] = nb & 0xFF ; nb >>=8; buf[0] = (unsigned char)nb ; } JX9_PRIVATE void SyBigEndianUnpack16(const unsigned char *buf,sxu16 *uNB) { *uNB = buf[1] + (buf[0] << 8); } JX9_PRIVATE void SyBigEndianPack64(unsigned char *buf,sxu64 n64) { buf[7] = n64 & 0xFF; n64 >>=8; buf[6] = n64 & 0xFF; n64 >>=8; buf[5] = n64 & 0xFF; n64 >>=8; buf[4] = n64 & 0xFF; n64 >>=8; buf[3] = n64 & 0xFF; n64 >>=8; buf[2] = n64 & 0xFF; n64 >>=8; buf[1] = n64 & 0xFF; n64 >>=8; buf[0] = (sxu8)n64 ; } JX9_PRIVATE void SyBigEndianUnpack64(const unsigned char *buf,sxu64 *n64) { sxu32 u1,u2; u1 = buf[7] + (buf[6] << 8) + (buf[5] << 16) + (buf[4] << 24); u2 = buf[3] + (buf[2] << 8) + (buf[1] << 16) + (buf[0] << 24); *n64 = (((sxu64)u2) << 32) | u1; } JX9_PRIVATE sxi32 SyBlobAppendBig64(SyBlob *pBlob,sxu64 n64) { unsigned char zBuf[8]; sxi32 rc; SyBigEndianPack64(zBuf,n64); rc = SyBlobAppend(pBlob,(const void *)zBuf,sizeof(zBuf)); return rc; } JX9_PRIVATE sxi32 SyBlobAppendBig32(SyBlob *pBlob,sxu32 n32) { unsigned char zBuf[4]; sxi32 rc; SyBigEndianPack32(zBuf,n32); rc = SyBlobAppend(pBlob,(const void *)zBuf,sizeof(zBuf)); return rc; } JX9_PRIVATE sxi32 SyBlobAppendBig16(SyBlob *pBlob,sxu16 n16) { unsigned char zBuf[2]; sxi32 rc; SyBigEndianPack16(zBuf,n16); rc = SyBlobAppend(pBlob,(const void *)zBuf,sizeof(zBuf)); return rc; } JX9_PRIVATE void SyTimeFormatToDos(Sytm *pFmt,sxu32 *pOut) { sxi32 nDate,nTime; nDate = ((pFmt->tm_year - 1980) << 9) + (pFmt->tm_mon << 5) + pFmt->tm_mday; nTime = (pFmt->tm_hour << 11) + (pFmt->tm_min << 5)+ (pFmt->tm_sec >> 1); *pOut = (nDate << 16) | nTime; } JX9_PRIVATE void 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; }