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https://github.com/hashcat/hashcat.git
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2837 lines
69 KiB
C
2837 lines
69 KiB
C
/* XzDec.c -- Xz Decode
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2021-04-01 : Igor Pavlov : Public domain */
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#include "Precomp.h"
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// #include <stdio.h>
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// #define XZ_DUMP
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/* #define XZ_DUMP */
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#ifdef XZ_DUMP
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#include <stdio.h>
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#endif
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// #define SHOW_DEBUG_INFO
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#ifdef SHOW_DEBUG_INFO
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#include <stdio.h>
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#endif
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#ifdef SHOW_DEBUG_INFO
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#define PRF(x) x
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#else
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#define PRF(x)
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#endif
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#define PRF_STR(s) PRF(printf("\n" s "\n"))
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#define PRF_STR_INT(s, d) PRF(printf("\n" s " %d\n", (unsigned)d))
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#include <stdlib.h>
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#include <string.h>
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#include "7zCrc.h"
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#include "Alloc.h"
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#include "Bra.h"
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#include "CpuArch.h"
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#include "Delta.h"
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#include "Lzma2Dec.h"
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// #define USE_SUBBLOCK
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#ifdef USE_SUBBLOCK
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#include "Bcj3Dec.c"
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#include "SbDec.h"
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#endif
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#include "Xz.h"
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#define XZ_CHECK_SIZE_MAX 64
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#define CODER_BUF_SIZE ((size_t)1 << 17)
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unsigned Xz_ReadVarInt(const Byte *p, size_t maxSize, UInt64 *value)
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{
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unsigned i, limit;
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*value = 0;
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limit = (maxSize > 9) ? 9 : (unsigned)maxSize;
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for (i = 0; i < limit;)
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{
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Byte b = p[i];
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*value |= (UInt64)(b & 0x7F) << (7 * i++);
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if ((b & 0x80) == 0)
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return (b == 0 && i != 1) ? 0 : i;
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}
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return 0;
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}
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/* ---------- BraState ---------- */
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#define BRA_BUF_SIZE (1 << 14)
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typedef struct
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{
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size_t bufPos;
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size_t bufConv;
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size_t bufTotal;
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int encodeMode;
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UInt32 methodId;
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UInt32 delta;
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UInt32 ip;
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UInt32 x86State;
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Byte deltaState[DELTA_STATE_SIZE];
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Byte buf[BRA_BUF_SIZE];
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} CBraState;
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static void BraState_Free(void *pp, ISzAllocPtr alloc)
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{
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ISzAlloc_Free(alloc, pp);
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}
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static SRes BraState_SetProps(void *pp, const Byte *props, size_t propSize, ISzAllocPtr alloc)
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{
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CBraState *p = ((CBraState *)pp);
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UNUSED_VAR(alloc);
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p->ip = 0;
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if (p->methodId == XZ_ID_Delta)
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{
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if (propSize != 1)
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return SZ_ERROR_UNSUPPORTED;
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p->delta = (unsigned)props[0] + 1;
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}
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else
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{
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if (propSize == 4)
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{
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UInt32 v = GetUi32(props);
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switch (p->methodId)
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{
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case XZ_ID_PPC:
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case XZ_ID_ARM:
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case XZ_ID_SPARC:
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if ((v & 3) != 0)
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return SZ_ERROR_UNSUPPORTED;
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break;
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case XZ_ID_ARMT:
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if ((v & 1) != 0)
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return SZ_ERROR_UNSUPPORTED;
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break;
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case XZ_ID_IA64:
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if ((v & 0xF) != 0)
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return SZ_ERROR_UNSUPPORTED;
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break;
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}
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p->ip = v;
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}
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else if (propSize != 0)
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return SZ_ERROR_UNSUPPORTED;
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}
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return SZ_OK;
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}
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static void BraState_Init(void *pp)
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{
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CBraState *p = ((CBraState *)pp);
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p->bufPos = p->bufConv = p->bufTotal = 0;
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x86_Convert_Init(p->x86State);
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if (p->methodId == XZ_ID_Delta)
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Delta_Init(p->deltaState);
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}
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#define CASE_BRA_CONV(isa) case XZ_ID_ ## isa: size = isa ## _Convert(data, size, p->ip, p->encodeMode); break;
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static SizeT BraState_Filter(void *pp, Byte *data, SizeT size)
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{
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CBraState *p = ((CBraState *)pp);
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switch (p->methodId)
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{
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case XZ_ID_Delta:
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if (p->encodeMode)
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Delta_Encode(p->deltaState, p->delta, data, size);
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else
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Delta_Decode(p->deltaState, p->delta, data, size);
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break;
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case XZ_ID_X86:
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size = x86_Convert(data, size, p->ip, &p->x86State, p->encodeMode);
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break;
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CASE_BRA_CONV(PPC)
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CASE_BRA_CONV(IA64)
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CASE_BRA_CONV(ARM)
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CASE_BRA_CONV(ARMT)
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CASE_BRA_CONV(SPARC)
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}
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p->ip += (UInt32)size;
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return size;
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}
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static SRes BraState_Code2(void *pp,
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Byte *dest, SizeT *destLen,
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const Byte *src, SizeT *srcLen, int srcWasFinished,
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ECoderFinishMode finishMode,
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// int *wasFinished
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ECoderStatus *status)
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{
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CBraState *p = ((CBraState *)pp);
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SizeT destRem = *destLen;
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SizeT srcRem = *srcLen;
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UNUSED_VAR(finishMode);
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*destLen = 0;
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*srcLen = 0;
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// *wasFinished = False;
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*status = CODER_STATUS_NOT_FINISHED;
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while (destRem > 0)
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{
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if (p->bufPos != p->bufConv)
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{
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size_t size = p->bufConv - p->bufPos;
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if (size > destRem)
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size = destRem;
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memcpy(dest, p->buf + p->bufPos, size);
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p->bufPos += size;
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*destLen += size;
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dest += size;
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destRem -= size;
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continue;
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}
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p->bufTotal -= p->bufPos;
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memmove(p->buf, p->buf + p->bufPos, p->bufTotal);
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p->bufPos = 0;
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p->bufConv = 0;
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{
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size_t size = BRA_BUF_SIZE - p->bufTotal;
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if (size > srcRem)
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size = srcRem;
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memcpy(p->buf + p->bufTotal, src, size);
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*srcLen += size;
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src += size;
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srcRem -= size;
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p->bufTotal += size;
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}
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if (p->bufTotal == 0)
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break;
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p->bufConv = BraState_Filter(pp, p->buf, p->bufTotal);
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if (p->bufConv == 0)
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{
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if (!srcWasFinished)
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break;
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p->bufConv = p->bufTotal;
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}
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}
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if (p->bufTotal == p->bufPos && srcRem == 0 && srcWasFinished)
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{
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*status = CODER_STATUS_FINISHED_WITH_MARK;
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// *wasFinished = 1;
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}
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return SZ_OK;
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}
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SRes BraState_SetFromMethod(IStateCoder *p, UInt64 id, int encodeMode, ISzAllocPtr alloc);
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SRes BraState_SetFromMethod(IStateCoder *p, UInt64 id, int encodeMode, ISzAllocPtr alloc)
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{
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CBraState *decoder;
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if (id < XZ_ID_Delta || id > XZ_ID_SPARC)
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return SZ_ERROR_UNSUPPORTED;
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decoder = (CBraState *)p->p;
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if (!decoder)
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{
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decoder = (CBraState *)ISzAlloc_Alloc(alloc, sizeof(CBraState));
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if (!decoder)
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return SZ_ERROR_MEM;
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p->p = decoder;
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p->Free = BraState_Free;
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p->SetProps = BraState_SetProps;
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p->Init = BraState_Init;
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p->Code2 = BraState_Code2;
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p->Filter = BraState_Filter;
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}
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decoder->methodId = (UInt32)id;
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decoder->encodeMode = encodeMode;
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return SZ_OK;
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}
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/* ---------- SbState ---------- */
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#ifdef USE_SUBBLOCK
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static void SbState_Free(void *pp, ISzAllocPtr alloc)
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{
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CSbDec *p = (CSbDec *)pp;
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SbDec_Free(p);
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ISzAlloc_Free(alloc, pp);
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}
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static SRes SbState_SetProps(void *pp, const Byte *props, size_t propSize, ISzAllocPtr alloc)
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{
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UNUSED_VAR(pp);
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UNUSED_VAR(props);
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UNUSED_VAR(alloc);
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return (propSize == 0) ? SZ_OK : SZ_ERROR_UNSUPPORTED;
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}
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static void SbState_Init(void *pp)
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{
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SbDec_Init((CSbDec *)pp);
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}
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static SRes SbState_Code2(void *pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
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int srcWasFinished, ECoderFinishMode finishMode,
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// int *wasFinished
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ECoderStatus *status)
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{
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CSbDec *p = (CSbDec *)pp;
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SRes res;
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UNUSED_VAR(srcWasFinished);
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p->dest = dest;
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p->destLen = *destLen;
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p->src = src;
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p->srcLen = *srcLen;
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p->finish = finishMode; /* change it */
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res = SbDec_Decode((CSbDec *)pp);
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*destLen -= p->destLen;
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*srcLen -= p->srcLen;
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// *wasFinished = (*destLen == 0 && *srcLen == 0); /* change it */
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*status = (*destLen == 0 && *srcLen == 0) ?
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CODER_STATUS_FINISHED_WITH_MARK :
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CODER_STATUS_NOT_FINISHED;
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return res;
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}
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static SRes SbState_SetFromMethod(IStateCoder *p, ISzAllocPtr alloc)
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{
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CSbDec *decoder = (CSbDec *)p->p;
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if (!decoder)
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{
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decoder = (CSbDec *)ISzAlloc_Alloc(alloc, sizeof(CSbDec));
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if (!decoder)
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return SZ_ERROR_MEM;
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p->p = decoder;
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p->Free = SbState_Free;
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p->SetProps = SbState_SetProps;
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p->Init = SbState_Init;
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p->Code2 = SbState_Code2;
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p->Filter = NULL;
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}
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SbDec_Construct(decoder);
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SbDec_SetAlloc(decoder, alloc);
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return SZ_OK;
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}
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#endif
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/* ---------- Lzma2 ---------- */
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typedef struct
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{
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CLzma2Dec decoder;
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BoolInt outBufMode;
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} CLzma2Dec_Spec;
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static void Lzma2State_Free(void *pp, ISzAllocPtr alloc)
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{
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CLzma2Dec_Spec *p = (CLzma2Dec_Spec *)pp;
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if (p->outBufMode)
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Lzma2Dec_FreeProbs(&p->decoder, alloc);
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else
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Lzma2Dec_Free(&p->decoder, alloc);
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ISzAlloc_Free(alloc, pp);
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}
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static SRes Lzma2State_SetProps(void *pp, const Byte *props, size_t propSize, ISzAllocPtr alloc)
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{
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if (propSize != 1)
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return SZ_ERROR_UNSUPPORTED;
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{
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CLzma2Dec_Spec *p = (CLzma2Dec_Spec *)pp;
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if (p->outBufMode)
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return Lzma2Dec_AllocateProbs(&p->decoder, props[0], alloc);
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else
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return Lzma2Dec_Allocate(&p->decoder, props[0], alloc);
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}
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}
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static void Lzma2State_Init(void *pp)
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{
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Lzma2Dec_Init(&((CLzma2Dec_Spec *)pp)->decoder);
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}
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/*
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if (outBufMode), then (dest) is not used. Use NULL.
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Data is unpacked to (spec->decoder.decoder.dic) output buffer.
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*/
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static SRes Lzma2State_Code2(void *pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
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int srcWasFinished, ECoderFinishMode finishMode,
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// int *wasFinished,
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ECoderStatus *status)
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{
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CLzma2Dec_Spec *spec = (CLzma2Dec_Spec *)pp;
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ELzmaStatus status2;
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/* ELzmaFinishMode fm = (finishMode == LZMA_FINISH_ANY) ? LZMA_FINISH_ANY : LZMA_FINISH_END; */
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SRes res;
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UNUSED_VAR(srcWasFinished);
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if (spec->outBufMode)
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{
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SizeT dicPos = spec->decoder.decoder.dicPos;
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SizeT dicLimit = dicPos + *destLen;
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res = Lzma2Dec_DecodeToDic(&spec->decoder, dicLimit, src, srcLen, (ELzmaFinishMode)finishMode, &status2);
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*destLen = spec->decoder.decoder.dicPos - dicPos;
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}
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else
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res = Lzma2Dec_DecodeToBuf(&spec->decoder, dest, destLen, src, srcLen, (ELzmaFinishMode)finishMode, &status2);
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// *wasFinished = (status2 == LZMA_STATUS_FINISHED_WITH_MARK);
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// ECoderStatus values are identical to ELzmaStatus values of LZMA2 decoder
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*status = (ECoderStatus)status2;
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return res;
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}
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static SRes Lzma2State_SetFromMethod(IStateCoder *p, Byte *outBuf, size_t outBufSize, ISzAllocPtr alloc)
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{
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CLzma2Dec_Spec *spec = (CLzma2Dec_Spec *)p->p;
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if (!spec)
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{
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spec = (CLzma2Dec_Spec *)ISzAlloc_Alloc(alloc, sizeof(CLzma2Dec_Spec));
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if (!spec)
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return SZ_ERROR_MEM;
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p->p = spec;
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p->Free = Lzma2State_Free;
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p->SetProps = Lzma2State_SetProps;
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p->Init = Lzma2State_Init;
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p->Code2 = Lzma2State_Code2;
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p->Filter = NULL;
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Lzma2Dec_Construct(&spec->decoder);
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}
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spec->outBufMode = False;
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if (outBuf)
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{
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spec->outBufMode = True;
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spec->decoder.decoder.dic = outBuf;
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spec->decoder.decoder.dicBufSize = outBufSize;
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}
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return SZ_OK;
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}
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static SRes Lzma2State_ResetOutBuf(IStateCoder *p, Byte *outBuf, size_t outBufSize)
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{
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CLzma2Dec_Spec *spec = (CLzma2Dec_Spec *)p->p;
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if ((spec->outBufMode && !outBuf) || (!spec->outBufMode && outBuf))
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return SZ_ERROR_FAIL;
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if (outBuf)
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{
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spec->decoder.decoder.dic = outBuf;
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spec->decoder.decoder.dicBufSize = outBufSize;
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}
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return SZ_OK;
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}
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static void MixCoder_Construct(CMixCoder *p, ISzAllocPtr alloc)
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{
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unsigned i;
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p->alloc = alloc;
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p->buf = NULL;
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p->numCoders = 0;
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p->outBufSize = 0;
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p->outBuf = NULL;
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// p->SingleBufMode = False;
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for (i = 0; i < MIXCODER_NUM_FILTERS_MAX; i++)
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p->coders[i].p = NULL;
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}
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static void MixCoder_Free(CMixCoder *p)
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{
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unsigned i;
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p->numCoders = 0;
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for (i = 0; i < MIXCODER_NUM_FILTERS_MAX; i++)
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{
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IStateCoder *sc = &p->coders[i];
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if (sc->p)
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{
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sc->Free(sc->p, p->alloc);
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sc->p = NULL;
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}
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}
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if (p->buf)
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{
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ISzAlloc_Free(p->alloc, p->buf);
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p->buf = NULL; /* 9.31: the BUG was fixed */
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}
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}
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static void MixCoder_Init(CMixCoder *p)
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{
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unsigned i;
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for (i = 0; i < MIXCODER_NUM_FILTERS_MAX - 1; i++)
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{
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p->size[i] = 0;
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p->pos[i] = 0;
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p->finished[i] = 0;
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}
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for (i = 0; i < p->numCoders; i++)
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{
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IStateCoder *coder = &p->coders[i];
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coder->Init(coder->p);
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p->results[i] = SZ_OK;
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}
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p->outWritten = 0;
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p->wasFinished = False;
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p->res = SZ_OK;
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p->status = CODER_STATUS_NOT_SPECIFIED;
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}
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static SRes MixCoder_SetFromMethod(CMixCoder *p, unsigned coderIndex, UInt64 methodId, Byte *outBuf, size_t outBufSize)
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{
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IStateCoder *sc = &p->coders[coderIndex];
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p->ids[coderIndex] = methodId;
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switch (methodId)
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{
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case XZ_ID_LZMA2: return Lzma2State_SetFromMethod(sc, outBuf, outBufSize, p->alloc);
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#ifdef USE_SUBBLOCK
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case XZ_ID_Subblock: return SbState_SetFromMethod(sc, p->alloc);
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#endif
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}
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if (coderIndex == 0)
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return SZ_ERROR_UNSUPPORTED;
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return BraState_SetFromMethod(sc, methodId, 0, p->alloc);
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}
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static SRes MixCoder_ResetFromMethod(CMixCoder *p, unsigned coderIndex, UInt64 methodId, Byte *outBuf, size_t outBufSize)
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{
|
|
IStateCoder *sc = &p->coders[coderIndex];
|
|
switch (methodId)
|
|
{
|
|
case XZ_ID_LZMA2: return Lzma2State_ResetOutBuf(sc, outBuf, outBufSize);
|
|
}
|
|
return SZ_ERROR_UNSUPPORTED;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
if (destFinish) - then unpack data block is finished at (*destLen) position,
|
|
and we can return data that were not processed by filter
|
|
|
|
output (status) can be :
|
|
CODER_STATUS_NOT_FINISHED
|
|
CODER_STATUS_FINISHED_WITH_MARK
|
|
CODER_STATUS_NEEDS_MORE_INPUT - not implemented still
|
|
*/
|
|
|
|
static SRes MixCoder_Code(CMixCoder *p,
|
|
Byte *dest, SizeT *destLen, int destFinish,
|
|
const Byte *src, SizeT *srcLen, int srcWasFinished,
|
|
ECoderFinishMode finishMode)
|
|
{
|
|
SizeT destLenOrig = *destLen;
|
|
SizeT srcLenOrig = *srcLen;
|
|
|
|
*destLen = 0;
|
|
*srcLen = 0;
|
|
|
|
if (p->wasFinished)
|
|
return p->res;
|
|
|
|
p->status = CODER_STATUS_NOT_FINISHED;
|
|
|
|
// if (p->SingleBufMode)
|
|
if (p->outBuf)
|
|
{
|
|
SRes res;
|
|
SizeT destLen2, srcLen2;
|
|
int wasFinished;
|
|
|
|
PRF_STR("------- MixCoder Single ----------");
|
|
|
|
srcLen2 = srcLenOrig;
|
|
destLen2 = destLenOrig;
|
|
|
|
{
|
|
IStateCoder *coder = &p->coders[0];
|
|
res = coder->Code2(coder->p, NULL, &destLen2, src, &srcLen2, srcWasFinished, finishMode,
|
|
// &wasFinished,
|
|
&p->status);
|
|
wasFinished = (p->status == CODER_STATUS_FINISHED_WITH_MARK);
|
|
}
|
|
|
|
p->res = res;
|
|
|
|
/*
|
|
if (wasFinished)
|
|
p->status = CODER_STATUS_FINISHED_WITH_MARK;
|
|
else
|
|
{
|
|
if (res == SZ_OK)
|
|
if (destLen2 != destLenOrig)
|
|
p->status = CODER_STATUS_NEEDS_MORE_INPUT;
|
|
}
|
|
*/
|
|
|
|
|
|
*srcLen = srcLen2;
|
|
src += srcLen2;
|
|
p->outWritten += destLen2;
|
|
|
|
if (res != SZ_OK || srcWasFinished || wasFinished)
|
|
p->wasFinished = True;
|
|
|
|
if (p->numCoders == 1)
|
|
*destLen = destLen2;
|
|
else if (p->wasFinished)
|
|
{
|
|
unsigned i;
|
|
size_t processed = p->outWritten;
|
|
|
|
for (i = 1; i < p->numCoders; i++)
|
|
{
|
|
IStateCoder *coder = &p->coders[i];
|
|
processed = coder->Filter(coder->p, p->outBuf, processed);
|
|
if (wasFinished || (destFinish && p->outWritten == destLenOrig))
|
|
processed = p->outWritten;
|
|
PRF_STR_INT("filter", i);
|
|
}
|
|
*destLen = processed;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
PRF_STR("standard mix");
|
|
|
|
if (p->numCoders != 1)
|
|
{
|
|
if (!p->buf)
|
|
{
|
|
p->buf = (Byte *)ISzAlloc_Alloc(p->alloc, CODER_BUF_SIZE * (MIXCODER_NUM_FILTERS_MAX - 1));
|
|
if (!p->buf)
|
|
return SZ_ERROR_MEM;
|
|
}
|
|
|
|
finishMode = CODER_FINISH_ANY;
|
|
}
|
|
|
|
for (;;)
|
|
{
|
|
BoolInt processed = False;
|
|
BoolInt allFinished = True;
|
|
SRes resMain = SZ_OK;
|
|
unsigned i;
|
|
|
|
p->status = CODER_STATUS_NOT_FINISHED;
|
|
/*
|
|
if (p->numCoders == 1 && *destLen == destLenOrig && finishMode == LZMA_FINISH_ANY)
|
|
break;
|
|
*/
|
|
|
|
for (i = 0; i < p->numCoders; i++)
|
|
{
|
|
SRes res;
|
|
IStateCoder *coder = &p->coders[i];
|
|
Byte *dest2;
|
|
SizeT destLen2, srcLen2; // destLen2_Orig;
|
|
const Byte *src2;
|
|
int srcFinished2;
|
|
int encodingWasFinished;
|
|
ECoderStatus status2;
|
|
|
|
if (i == 0)
|
|
{
|
|
src2 = src;
|
|
srcLen2 = srcLenOrig - *srcLen;
|
|
srcFinished2 = srcWasFinished;
|
|
}
|
|
else
|
|
{
|
|
size_t k = i - 1;
|
|
src2 = p->buf + (CODER_BUF_SIZE * k) + p->pos[k];
|
|
srcLen2 = p->size[k] - p->pos[k];
|
|
srcFinished2 = p->finished[k];
|
|
}
|
|
|
|
if (i == p->numCoders - 1)
|
|
{
|
|
dest2 = dest;
|
|
destLen2 = destLenOrig - *destLen;
|
|
}
|
|
else
|
|
{
|
|
if (p->pos[i] != p->size[i])
|
|
continue;
|
|
dest2 = p->buf + (CODER_BUF_SIZE * i);
|
|
destLen2 = CODER_BUF_SIZE;
|
|
}
|
|
|
|
// destLen2_Orig = destLen2;
|
|
|
|
if (p->results[i] != SZ_OK)
|
|
{
|
|
if (resMain == SZ_OK)
|
|
resMain = p->results[i];
|
|
continue;
|
|
}
|
|
|
|
res = coder->Code2(coder->p,
|
|
dest2, &destLen2,
|
|
src2, &srcLen2, srcFinished2,
|
|
finishMode,
|
|
// &encodingWasFinished,
|
|
&status2);
|
|
|
|
if (res != SZ_OK)
|
|
{
|
|
p->results[i] = res;
|
|
if (resMain == SZ_OK)
|
|
resMain = res;
|
|
}
|
|
|
|
encodingWasFinished = (status2 == CODER_STATUS_FINISHED_WITH_MARK);
|
|
|
|
if (!encodingWasFinished)
|
|
{
|
|
allFinished = False;
|
|
if (p->numCoders == 1 && res == SZ_OK)
|
|
p->status = status2;
|
|
}
|
|
|
|
if (i == 0)
|
|
{
|
|
*srcLen += srcLen2;
|
|
src += srcLen2;
|
|
}
|
|
else
|
|
p->pos[(size_t)i - 1] += srcLen2;
|
|
|
|
if (i == p->numCoders - 1)
|
|
{
|
|
*destLen += destLen2;
|
|
dest += destLen2;
|
|
}
|
|
else
|
|
{
|
|
p->size[i] = destLen2;
|
|
p->pos[i] = 0;
|
|
p->finished[i] = encodingWasFinished;
|
|
}
|
|
|
|
if (destLen2 != 0 || srcLen2 != 0)
|
|
processed = True;
|
|
}
|
|
|
|
if (!processed)
|
|
{
|
|
if (allFinished)
|
|
p->status = CODER_STATUS_FINISHED_WITH_MARK;
|
|
return resMain;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
SRes Xz_ParseHeader(CXzStreamFlags *p, const Byte *buf)
|
|
{
|
|
*p = (CXzStreamFlags)GetBe16(buf + XZ_SIG_SIZE);
|
|
if (CrcCalc(buf + XZ_SIG_SIZE, XZ_STREAM_FLAGS_SIZE) !=
|
|
GetUi32(buf + XZ_SIG_SIZE + XZ_STREAM_FLAGS_SIZE))
|
|
return SZ_ERROR_NO_ARCHIVE;
|
|
return XzFlags_IsSupported(*p) ? SZ_OK : SZ_ERROR_UNSUPPORTED;
|
|
}
|
|
|
|
static BoolInt Xz_CheckFooter(CXzStreamFlags flags, UInt64 indexSize, const Byte *buf)
|
|
{
|
|
return indexSize == (((UInt64)GetUi32(buf + 4) + 1) << 2)
|
|
&& GetUi32(buf) == CrcCalc(buf + 4, 6)
|
|
&& flags == GetBe16(buf + 8)
|
|
&& buf[10] == XZ_FOOTER_SIG_0
|
|
&& buf[11] == XZ_FOOTER_SIG_1;
|
|
}
|
|
|
|
#define READ_VARINT_AND_CHECK(buf, pos, size, res) \
|
|
{ unsigned s = Xz_ReadVarInt(buf + pos, size - pos, res); \
|
|
if (s == 0) return SZ_ERROR_ARCHIVE; pos += s; }
|
|
|
|
|
|
static BoolInt XzBlock_AreSupportedFilters(const CXzBlock *p)
|
|
{
|
|
unsigned numFilters = XzBlock_GetNumFilters(p) - 1;
|
|
unsigned i;
|
|
{
|
|
const CXzFilter *f = &p->filters[numFilters];
|
|
if (f->id != XZ_ID_LZMA2 || f->propsSize != 1 || f->props[0] > 40)
|
|
return False;
|
|
}
|
|
|
|
for (i = 0; i < numFilters; i++)
|
|
{
|
|
const CXzFilter *f = &p->filters[i];
|
|
if (f->id == XZ_ID_Delta)
|
|
{
|
|
if (f->propsSize != 1)
|
|
return False;
|
|
}
|
|
else if (f->id < XZ_ID_Delta
|
|
|| f->id > XZ_ID_SPARC
|
|
|| (f->propsSize != 0 && f->propsSize != 4))
|
|
return False;
|
|
}
|
|
return True;
|
|
}
|
|
|
|
|
|
SRes XzBlock_Parse(CXzBlock *p, const Byte *header)
|
|
{
|
|
unsigned pos;
|
|
unsigned numFilters, i;
|
|
unsigned headerSize = (unsigned)header[0] << 2;
|
|
|
|
/* (headerSize != 0) : another code checks */
|
|
|
|
if (CrcCalc(header, headerSize) != GetUi32(header + headerSize))
|
|
return SZ_ERROR_ARCHIVE;
|
|
|
|
pos = 1;
|
|
p->flags = header[pos++];
|
|
|
|
p->packSize = (UInt64)(Int64)-1;
|
|
if (XzBlock_HasPackSize(p))
|
|
{
|
|
READ_VARINT_AND_CHECK(header, pos, headerSize, &p->packSize);
|
|
if (p->packSize == 0 || p->packSize + headerSize >= (UInt64)1 << 63)
|
|
return SZ_ERROR_ARCHIVE;
|
|
}
|
|
|
|
p->unpackSize = (UInt64)(Int64)-1;
|
|
if (XzBlock_HasUnpackSize(p))
|
|
READ_VARINT_AND_CHECK(header, pos, headerSize, &p->unpackSize);
|
|
|
|
numFilters = XzBlock_GetNumFilters(p);
|
|
for (i = 0; i < numFilters; i++)
|
|
{
|
|
CXzFilter *filter = p->filters + i;
|
|
UInt64 size;
|
|
READ_VARINT_AND_CHECK(header, pos, headerSize, &filter->id);
|
|
READ_VARINT_AND_CHECK(header, pos, headerSize, &size);
|
|
if (size > headerSize - pos || size > XZ_FILTER_PROPS_SIZE_MAX)
|
|
return SZ_ERROR_ARCHIVE;
|
|
filter->propsSize = (UInt32)size;
|
|
memcpy(filter->props, header + pos, (size_t)size);
|
|
pos += (unsigned)size;
|
|
|
|
#ifdef XZ_DUMP
|
|
printf("\nf[%u] = %2X: ", i, (unsigned)filter->id);
|
|
{
|
|
unsigned i;
|
|
for (i = 0; i < size; i++)
|
|
printf(" %2X", filter->props[i]);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (XzBlock_HasUnsupportedFlags(p))
|
|
return SZ_ERROR_UNSUPPORTED;
|
|
|
|
while (pos < headerSize)
|
|
if (header[pos++] != 0)
|
|
return SZ_ERROR_ARCHIVE;
|
|
return SZ_OK;
|
|
}
|
|
|
|
|
|
|
|
|
|
static SRes XzDecMix_Init(CMixCoder *p, const CXzBlock *block, Byte *outBuf, size_t outBufSize)
|
|
{
|
|
unsigned i;
|
|
BoolInt needReInit = True;
|
|
unsigned numFilters = XzBlock_GetNumFilters(block);
|
|
|
|
if (numFilters == p->numCoders && ((p->outBuf && outBuf) || (!p->outBuf && !outBuf)))
|
|
{
|
|
needReInit = False;
|
|
for (i = 0; i < numFilters; i++)
|
|
if (p->ids[i] != block->filters[numFilters - 1 - i].id)
|
|
{
|
|
needReInit = True;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// p->SingleBufMode = (outBuf != NULL);
|
|
p->outBuf = outBuf;
|
|
p->outBufSize = outBufSize;
|
|
|
|
// p->SingleBufMode = False;
|
|
// outBuf = NULL;
|
|
|
|
if (needReInit)
|
|
{
|
|
MixCoder_Free(p);
|
|
for (i = 0; i < numFilters; i++)
|
|
{
|
|
RINOK(MixCoder_SetFromMethod(p, i, block->filters[numFilters - 1 - i].id, outBuf, outBufSize));
|
|
}
|
|
p->numCoders = numFilters;
|
|
}
|
|
else
|
|
{
|
|
RINOK(MixCoder_ResetFromMethod(p, 0, block->filters[numFilters - 1].id, outBuf, outBufSize));
|
|
}
|
|
|
|
for (i = 0; i < numFilters; i++)
|
|
{
|
|
const CXzFilter *f = &block->filters[numFilters - 1 - i];
|
|
IStateCoder *sc = &p->coders[i];
|
|
RINOK(sc->SetProps(sc->p, f->props, f->propsSize, p->alloc));
|
|
}
|
|
|
|
MixCoder_Init(p);
|
|
return SZ_OK;
|
|
}
|
|
|
|
|
|
|
|
void XzUnpacker_Init(CXzUnpacker *p)
|
|
{
|
|
p->state = XZ_STATE_STREAM_HEADER;
|
|
p->pos = 0;
|
|
p->numStartedStreams = 0;
|
|
p->numFinishedStreams = 0;
|
|
p->numTotalBlocks = 0;
|
|
p->padSize = 0;
|
|
p->decodeOnlyOneBlock = 0;
|
|
|
|
p->parseMode = False;
|
|
p->decodeToStreamSignature = False;
|
|
|
|
// p->outBuf = NULL;
|
|
// p->outBufSize = 0;
|
|
p->outDataWritten = 0;
|
|
}
|
|
|
|
|
|
void XzUnpacker_SetOutBuf(CXzUnpacker *p, Byte *outBuf, size_t outBufSize)
|
|
{
|
|
p->outBuf = outBuf;
|
|
p->outBufSize = outBufSize;
|
|
}
|
|
|
|
|
|
void XzUnpacker_Construct(CXzUnpacker *p, ISzAllocPtr alloc)
|
|
{
|
|
MixCoder_Construct(&p->decoder, alloc);
|
|
p->outBuf = NULL;
|
|
p->outBufSize = 0;
|
|
XzUnpacker_Init(p);
|
|
}
|
|
|
|
|
|
void XzUnpacker_Free(CXzUnpacker *p)
|
|
{
|
|
MixCoder_Free(&p->decoder);
|
|
}
|
|
|
|
|
|
void XzUnpacker_PrepareToRandomBlockDecoding(CXzUnpacker *p)
|
|
{
|
|
p->indexSize = 0;
|
|
p->numBlocks = 0;
|
|
Sha256_Init(&p->sha);
|
|
p->state = XZ_STATE_BLOCK_HEADER;
|
|
p->pos = 0;
|
|
p->decodeOnlyOneBlock = 1;
|
|
}
|
|
|
|
|
|
static void XzUnpacker_UpdateIndex(CXzUnpacker *p, UInt64 packSize, UInt64 unpackSize)
|
|
{
|
|
Byte temp[32];
|
|
unsigned num = Xz_WriteVarInt(temp, packSize);
|
|
num += Xz_WriteVarInt(temp + num, unpackSize);
|
|
Sha256_Update(&p->sha, temp, num);
|
|
p->indexSize += num;
|
|
p->numBlocks++;
|
|
}
|
|
|
|
|
|
|
|
SRes XzUnpacker_Code(CXzUnpacker *p, Byte *dest, SizeT *destLen,
|
|
const Byte *src, SizeT *srcLen, int srcFinished,
|
|
ECoderFinishMode finishMode, ECoderStatus *status)
|
|
{
|
|
SizeT destLenOrig = *destLen;
|
|
SizeT srcLenOrig = *srcLen;
|
|
*destLen = 0;
|
|
*srcLen = 0;
|
|
*status = CODER_STATUS_NOT_SPECIFIED;
|
|
|
|
for (;;)
|
|
{
|
|
SizeT srcRem;
|
|
|
|
if (p->state == XZ_STATE_BLOCK)
|
|
{
|
|
SizeT destLen2 = destLenOrig - *destLen;
|
|
SizeT srcLen2 = srcLenOrig - *srcLen;
|
|
SRes res;
|
|
|
|
ECoderFinishMode finishMode2 = finishMode;
|
|
BoolInt srcFinished2 = srcFinished;
|
|
BoolInt destFinish = False;
|
|
|
|
if (p->block.packSize != (UInt64)(Int64)-1)
|
|
{
|
|
UInt64 rem = p->block.packSize - p->packSize;
|
|
if (srcLen2 >= rem)
|
|
{
|
|
srcFinished2 = True;
|
|
srcLen2 = (SizeT)rem;
|
|
}
|
|
if (rem == 0 && p->block.unpackSize == p->unpackSize)
|
|
return SZ_ERROR_DATA;
|
|
}
|
|
|
|
if (p->block.unpackSize != (UInt64)(Int64)-1)
|
|
{
|
|
UInt64 rem = p->block.unpackSize - p->unpackSize;
|
|
if (destLen2 >= rem)
|
|
{
|
|
destFinish = True;
|
|
finishMode2 = CODER_FINISH_END;
|
|
destLen2 = (SizeT)rem;
|
|
}
|
|
}
|
|
|
|
/*
|
|
if (srcLen2 == 0 && destLen2 == 0)
|
|
{
|
|
*status = CODER_STATUS_NOT_FINISHED;
|
|
return SZ_OK;
|
|
}
|
|
*/
|
|
|
|
{
|
|
res = MixCoder_Code(&p->decoder,
|
|
(p->outBuf ? NULL : dest), &destLen2, destFinish,
|
|
src, &srcLen2, srcFinished2,
|
|
finishMode2);
|
|
|
|
*status = p->decoder.status;
|
|
XzCheck_Update(&p->check, (p->outBuf ? p->outBuf + p->outDataWritten : dest), destLen2);
|
|
if (!p->outBuf)
|
|
dest += destLen2;
|
|
p->outDataWritten += destLen2;
|
|
}
|
|
|
|
(*srcLen) += srcLen2;
|
|
src += srcLen2;
|
|
p->packSize += srcLen2;
|
|
(*destLen) += destLen2;
|
|
p->unpackSize += destLen2;
|
|
|
|
RINOK(res);
|
|
|
|
if (*status != CODER_STATUS_FINISHED_WITH_MARK)
|
|
{
|
|
if (p->block.packSize == p->packSize
|
|
&& *status == CODER_STATUS_NEEDS_MORE_INPUT)
|
|
{
|
|
PRF_STR("CODER_STATUS_NEEDS_MORE_INPUT");
|
|
*status = CODER_STATUS_NOT_SPECIFIED;
|
|
return SZ_ERROR_DATA;
|
|
}
|
|
|
|
return SZ_OK;
|
|
}
|
|
{
|
|
XzUnpacker_UpdateIndex(p, XzUnpacker_GetPackSizeForIndex(p), p->unpackSize);
|
|
p->state = XZ_STATE_BLOCK_FOOTER;
|
|
p->pos = 0;
|
|
p->alignPos = 0;
|
|
*status = CODER_STATUS_NOT_SPECIFIED;
|
|
|
|
if ((p->block.packSize != (UInt64)(Int64)-1 && p->block.packSize != p->packSize)
|
|
|| (p->block.unpackSize != (UInt64)(Int64)-1 && p->block.unpackSize != p->unpackSize))
|
|
{
|
|
PRF_STR("ERROR: block.size mismatch");
|
|
return SZ_ERROR_DATA;
|
|
}
|
|
}
|
|
// continue;
|
|
}
|
|
|
|
srcRem = srcLenOrig - *srcLen;
|
|
|
|
// XZ_STATE_BLOCK_FOOTER can transit to XZ_STATE_BLOCK_HEADER without input bytes
|
|
if (srcRem == 0 && p->state != XZ_STATE_BLOCK_FOOTER)
|
|
{
|
|
*status = CODER_STATUS_NEEDS_MORE_INPUT;
|
|
return SZ_OK;
|
|
}
|
|
|
|
switch (p->state)
|
|
{
|
|
case XZ_STATE_STREAM_HEADER:
|
|
{
|
|
if (p->pos < XZ_STREAM_HEADER_SIZE)
|
|
{
|
|
if (p->pos < XZ_SIG_SIZE && *src != XZ_SIG[p->pos])
|
|
return SZ_ERROR_NO_ARCHIVE;
|
|
if (p->decodeToStreamSignature)
|
|
return SZ_OK;
|
|
p->buf[p->pos++] = *src++;
|
|
(*srcLen)++;
|
|
}
|
|
else
|
|
{
|
|
RINOK(Xz_ParseHeader(&p->streamFlags, p->buf));
|
|
p->numStartedStreams++;
|
|
p->indexSize = 0;
|
|
p->numBlocks = 0;
|
|
Sha256_Init(&p->sha);
|
|
p->state = XZ_STATE_BLOCK_HEADER;
|
|
p->pos = 0;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case XZ_STATE_BLOCK_HEADER:
|
|
{
|
|
if (p->pos == 0)
|
|
{
|
|
p->buf[p->pos++] = *src++;
|
|
(*srcLen)++;
|
|
if (p->buf[0] == 0)
|
|
{
|
|
if (p->decodeOnlyOneBlock)
|
|
return SZ_ERROR_DATA;
|
|
p->indexPreSize = 1 + Xz_WriteVarInt(p->buf + 1, p->numBlocks);
|
|
p->indexPos = p->indexPreSize;
|
|
p->indexSize += p->indexPreSize;
|
|
Sha256_Final(&p->sha, p->shaDigest);
|
|
Sha256_Init(&p->sha);
|
|
p->crc = CrcUpdate(CRC_INIT_VAL, p->buf, p->indexPreSize);
|
|
p->state = XZ_STATE_STREAM_INDEX;
|
|
break;
|
|
}
|
|
p->blockHeaderSize = ((UInt32)p->buf[0] << 2) + 4;
|
|
break;
|
|
}
|
|
|
|
if (p->pos != p->blockHeaderSize)
|
|
{
|
|
UInt32 cur = p->blockHeaderSize - p->pos;
|
|
if (cur > srcRem)
|
|
cur = (UInt32)srcRem;
|
|
memcpy(p->buf + p->pos, src, cur);
|
|
p->pos += cur;
|
|
(*srcLen) += cur;
|
|
src += cur;
|
|
}
|
|
else
|
|
{
|
|
RINOK(XzBlock_Parse(&p->block, p->buf));
|
|
if (!XzBlock_AreSupportedFilters(&p->block))
|
|
return SZ_ERROR_UNSUPPORTED;
|
|
p->numTotalBlocks++;
|
|
p->state = XZ_STATE_BLOCK;
|
|
p->packSize = 0;
|
|
p->unpackSize = 0;
|
|
XzCheck_Init(&p->check, XzFlags_GetCheckType(p->streamFlags));
|
|
if (p->parseMode)
|
|
{
|
|
p->headerParsedOk = True;
|
|
return SZ_OK;
|
|
}
|
|
RINOK(XzDecMix_Init(&p->decoder, &p->block, p->outBuf, p->outBufSize));
|
|
}
|
|
break;
|
|
}
|
|
|
|
case XZ_STATE_BLOCK_FOOTER:
|
|
{
|
|
if ((((unsigned)p->packSize + p->alignPos) & 3) != 0)
|
|
{
|
|
if (srcRem == 0)
|
|
{
|
|
*status = CODER_STATUS_NEEDS_MORE_INPUT;
|
|
return SZ_OK;
|
|
}
|
|
(*srcLen)++;
|
|
p->alignPos++;
|
|
if (*src++ != 0)
|
|
return SZ_ERROR_CRC;
|
|
}
|
|
else
|
|
{
|
|
UInt32 checkSize = XzFlags_GetCheckSize(p->streamFlags);
|
|
UInt32 cur = checkSize - p->pos;
|
|
if (cur != 0)
|
|
{
|
|
if (srcRem == 0)
|
|
{
|
|
*status = CODER_STATUS_NEEDS_MORE_INPUT;
|
|
return SZ_OK;
|
|
}
|
|
if (cur > srcRem)
|
|
cur = (UInt32)srcRem;
|
|
memcpy(p->buf + p->pos, src, cur);
|
|
p->pos += cur;
|
|
(*srcLen) += cur;
|
|
src += cur;
|
|
if (checkSize != p->pos)
|
|
break;
|
|
}
|
|
{
|
|
Byte digest[XZ_CHECK_SIZE_MAX];
|
|
p->state = XZ_STATE_BLOCK_HEADER;
|
|
p->pos = 0;
|
|
if (XzCheck_Final(&p->check, digest) && memcmp(digest, p->buf, checkSize) != 0)
|
|
return SZ_ERROR_CRC;
|
|
if (p->decodeOnlyOneBlock)
|
|
{
|
|
*status = CODER_STATUS_FINISHED_WITH_MARK;
|
|
return SZ_OK;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case XZ_STATE_STREAM_INDEX:
|
|
{
|
|
if (p->pos < p->indexPreSize)
|
|
{
|
|
(*srcLen)++;
|
|
if (*src++ != p->buf[p->pos++])
|
|
return SZ_ERROR_CRC;
|
|
}
|
|
else
|
|
{
|
|
if (p->indexPos < p->indexSize)
|
|
{
|
|
UInt64 cur = p->indexSize - p->indexPos;
|
|
if (srcRem > cur)
|
|
srcRem = (SizeT)cur;
|
|
p->crc = CrcUpdate(p->crc, src, srcRem);
|
|
Sha256_Update(&p->sha, src, srcRem);
|
|
(*srcLen) += srcRem;
|
|
src += srcRem;
|
|
p->indexPos += srcRem;
|
|
}
|
|
else if ((p->indexPos & 3) != 0)
|
|
{
|
|
Byte b = *src++;
|
|
p->crc = CRC_UPDATE_BYTE(p->crc, b);
|
|
(*srcLen)++;
|
|
p->indexPos++;
|
|
p->indexSize++;
|
|
if (b != 0)
|
|
return SZ_ERROR_CRC;
|
|
}
|
|
else
|
|
{
|
|
Byte digest[SHA256_DIGEST_SIZE];
|
|
p->state = XZ_STATE_STREAM_INDEX_CRC;
|
|
p->indexSize += 4;
|
|
p->pos = 0;
|
|
Sha256_Final(&p->sha, digest);
|
|
if (memcmp(digest, p->shaDigest, SHA256_DIGEST_SIZE) != 0)
|
|
return SZ_ERROR_CRC;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case XZ_STATE_STREAM_INDEX_CRC:
|
|
{
|
|
if (p->pos < 4)
|
|
{
|
|
(*srcLen)++;
|
|
p->buf[p->pos++] = *src++;
|
|
}
|
|
else
|
|
{
|
|
const Byte *ptr = p->buf;
|
|
p->state = XZ_STATE_STREAM_FOOTER;
|
|
p->pos = 0;
|
|
if (CRC_GET_DIGEST(p->crc) != GetUi32(ptr))
|
|
return SZ_ERROR_CRC;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case XZ_STATE_STREAM_FOOTER:
|
|
{
|
|
UInt32 cur = XZ_STREAM_FOOTER_SIZE - p->pos;
|
|
if (cur > srcRem)
|
|
cur = (UInt32)srcRem;
|
|
memcpy(p->buf + p->pos, src, cur);
|
|
p->pos += cur;
|
|
(*srcLen) += cur;
|
|
src += cur;
|
|
if (p->pos == XZ_STREAM_FOOTER_SIZE)
|
|
{
|
|
p->state = XZ_STATE_STREAM_PADDING;
|
|
p->numFinishedStreams++;
|
|
p->padSize = 0;
|
|
if (!Xz_CheckFooter(p->streamFlags, p->indexSize, p->buf))
|
|
return SZ_ERROR_CRC;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case XZ_STATE_STREAM_PADDING:
|
|
{
|
|
if (*src != 0)
|
|
{
|
|
if (((UInt32)p->padSize & 3) != 0)
|
|
return SZ_ERROR_NO_ARCHIVE;
|
|
p->pos = 0;
|
|
p->state = XZ_STATE_STREAM_HEADER;
|
|
}
|
|
else
|
|
{
|
|
(*srcLen)++;
|
|
src++;
|
|
p->padSize++;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case XZ_STATE_BLOCK: break; /* to disable GCC warning */
|
|
}
|
|
}
|
|
/*
|
|
if (p->state == XZ_STATE_FINISHED)
|
|
*status = CODER_STATUS_FINISHED_WITH_MARK;
|
|
return SZ_OK;
|
|
*/
|
|
}
|
|
|
|
|
|
SRes XzUnpacker_CodeFull(CXzUnpacker *p, Byte *dest, SizeT *destLen,
|
|
const Byte *src, SizeT *srcLen,
|
|
ECoderFinishMode finishMode, ECoderStatus *status)
|
|
{
|
|
XzUnpacker_Init(p);
|
|
XzUnpacker_SetOutBuf(p, dest, *destLen);
|
|
|
|
return XzUnpacker_Code(p,
|
|
NULL, destLen,
|
|
src, srcLen, True,
|
|
finishMode, status);
|
|
}
|
|
|
|
|
|
BoolInt XzUnpacker_IsBlockFinished(const CXzUnpacker *p)
|
|
{
|
|
return (p->state == XZ_STATE_BLOCK_HEADER) && (p->pos == 0);
|
|
}
|
|
|
|
BoolInt XzUnpacker_IsStreamWasFinished(const CXzUnpacker *p)
|
|
{
|
|
return (p->state == XZ_STATE_STREAM_PADDING) && (((UInt32)p->padSize & 3) == 0);
|
|
}
|
|
|
|
UInt64 XzUnpacker_GetExtraSize(const CXzUnpacker *p)
|
|
{
|
|
UInt64 num = 0;
|
|
if (p->state == XZ_STATE_STREAM_PADDING)
|
|
num = p->padSize;
|
|
else if (p->state == XZ_STATE_STREAM_HEADER)
|
|
num = p->padSize + p->pos;
|
|
return num;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
#include "MtDec.h"
|
|
#endif
|
|
|
|
|
|
void XzDecMtProps_Init(CXzDecMtProps *p)
|
|
{
|
|
p->inBufSize_ST = 1 << 18;
|
|
p->outStep_ST = 1 << 20;
|
|
p->ignoreErrors = False;
|
|
|
|
#ifndef _7ZIP_ST
|
|
p->numThreads = 1;
|
|
p->inBufSize_MT = 1 << 18;
|
|
p->memUseMax = sizeof(size_t) << 28;
|
|
#endif
|
|
}
|
|
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
/* ---------- CXzDecMtThread ---------- */
|
|
|
|
typedef struct
|
|
{
|
|
Byte *outBuf;
|
|
size_t outBufSize;
|
|
size_t outPreSize;
|
|
size_t inPreSize;
|
|
size_t inPreHeaderSize;
|
|
size_t blockPackSize_for_Index; // including block header and checksum.
|
|
size_t blockPackTotal; // including stream header, block header and checksum.
|
|
size_t inCodeSize;
|
|
size_t outCodeSize;
|
|
ECoderStatus status;
|
|
SRes codeRes;
|
|
BoolInt skipMode;
|
|
// BoolInt finishedWithMark;
|
|
EMtDecParseState parseState;
|
|
BoolInt parsing_Truncated;
|
|
BoolInt atBlockHeader;
|
|
CXzStreamFlags streamFlags;
|
|
// UInt64 numFinishedStreams
|
|
UInt64 numStreams;
|
|
UInt64 numTotalBlocks;
|
|
UInt64 numBlocks;
|
|
|
|
BoolInt dec_created;
|
|
CXzUnpacker dec;
|
|
|
|
Byte mtPad[1 << 7];
|
|
} CXzDecMtThread;
|
|
|
|
#endif
|
|
|
|
|
|
/* ---------- CXzDecMt ---------- */
|
|
|
|
typedef struct
|
|
{
|
|
CAlignOffsetAlloc alignOffsetAlloc;
|
|
ISzAllocPtr allocMid;
|
|
|
|
CXzDecMtProps props;
|
|
size_t unpackBlockMaxSize;
|
|
|
|
ISeqInStream *inStream;
|
|
ISeqOutStream *outStream;
|
|
ICompressProgress *progress;
|
|
|
|
BoolInt finishMode;
|
|
BoolInt outSize_Defined;
|
|
UInt64 outSize;
|
|
|
|
UInt64 outProcessed;
|
|
UInt64 inProcessed;
|
|
UInt64 readProcessed;
|
|
BoolInt readWasFinished;
|
|
SRes readRes;
|
|
SRes writeRes;
|
|
|
|
Byte *outBuf;
|
|
size_t outBufSize;
|
|
Byte *inBuf;
|
|
size_t inBufSize;
|
|
|
|
CXzUnpacker dec;
|
|
|
|
ECoderStatus status;
|
|
SRes codeRes;
|
|
|
|
#ifndef _7ZIP_ST
|
|
BoolInt mainDecoderWasCalled;
|
|
// int statErrorDefined;
|
|
int finishedDecoderIndex;
|
|
|
|
// global values that are used in Parse stage
|
|
CXzStreamFlags streamFlags;
|
|
// UInt64 numFinishedStreams
|
|
UInt64 numStreams;
|
|
UInt64 numTotalBlocks;
|
|
UInt64 numBlocks;
|
|
|
|
// UInt64 numBadBlocks;
|
|
SRes mainErrorCode; // it's set to error code, if the size Code() output doesn't patch the size from Parsing stage
|
|
// it can be = SZ_ERROR_INPUT_EOF
|
|
// it can be = SZ_ERROR_DATA, in some another cases
|
|
BoolInt isBlockHeaderState_Parse;
|
|
BoolInt isBlockHeaderState_Write;
|
|
UInt64 outProcessed_Parse;
|
|
BoolInt parsing_Truncated;
|
|
|
|
BoolInt mtc_WasConstructed;
|
|
CMtDec mtc;
|
|
CXzDecMtThread coders[MTDEC__THREADS_MAX];
|
|
#endif
|
|
|
|
} CXzDecMt;
|
|
|
|
|
|
|
|
CXzDecMtHandle XzDecMt_Create(ISzAllocPtr alloc, ISzAllocPtr allocMid)
|
|
{
|
|
CXzDecMt *p = (CXzDecMt *)ISzAlloc_Alloc(alloc, sizeof(CXzDecMt));
|
|
if (!p)
|
|
return NULL;
|
|
|
|
AlignOffsetAlloc_CreateVTable(&p->alignOffsetAlloc);
|
|
p->alignOffsetAlloc.baseAlloc = alloc;
|
|
p->alignOffsetAlloc.numAlignBits = 7;
|
|
p->alignOffsetAlloc.offset = 0;
|
|
|
|
p->allocMid = allocMid;
|
|
|
|
p->outBuf = NULL;
|
|
p->outBufSize = 0;
|
|
p->inBuf = NULL;
|
|
p->inBufSize = 0;
|
|
|
|
XzUnpacker_Construct(&p->dec, &p->alignOffsetAlloc.vt);
|
|
|
|
p->unpackBlockMaxSize = 0;
|
|
|
|
XzDecMtProps_Init(&p->props);
|
|
|
|
#ifndef _7ZIP_ST
|
|
p->mtc_WasConstructed = False;
|
|
{
|
|
unsigned i;
|
|
for (i = 0; i < MTDEC__THREADS_MAX; i++)
|
|
{
|
|
CXzDecMtThread *coder = &p->coders[i];
|
|
coder->dec_created = False;
|
|
coder->outBuf = NULL;
|
|
coder->outBufSize = 0;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return p;
|
|
}
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
static void XzDecMt_FreeOutBufs(CXzDecMt *p)
|
|
{
|
|
unsigned i;
|
|
for (i = 0; i < MTDEC__THREADS_MAX; i++)
|
|
{
|
|
CXzDecMtThread *coder = &p->coders[i];
|
|
if (coder->outBuf)
|
|
{
|
|
ISzAlloc_Free(p->allocMid, coder->outBuf);
|
|
coder->outBuf = NULL;
|
|
coder->outBufSize = 0;
|
|
}
|
|
}
|
|
p->unpackBlockMaxSize = 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static void XzDecMt_FreeSt(CXzDecMt *p)
|
|
{
|
|
XzUnpacker_Free(&p->dec);
|
|
|
|
if (p->outBuf)
|
|
{
|
|
ISzAlloc_Free(p->allocMid, p->outBuf);
|
|
p->outBuf = NULL;
|
|
}
|
|
p->outBufSize = 0;
|
|
|
|
if (p->inBuf)
|
|
{
|
|
ISzAlloc_Free(p->allocMid, p->inBuf);
|
|
p->inBuf = NULL;
|
|
}
|
|
p->inBufSize = 0;
|
|
}
|
|
|
|
|
|
void XzDecMt_Destroy(CXzDecMtHandle pp)
|
|
{
|
|
CXzDecMt *p = (CXzDecMt *)pp;
|
|
|
|
XzDecMt_FreeSt(p);
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
if (p->mtc_WasConstructed)
|
|
{
|
|
MtDec_Destruct(&p->mtc);
|
|
p->mtc_WasConstructed = False;
|
|
}
|
|
{
|
|
unsigned i;
|
|
for (i = 0; i < MTDEC__THREADS_MAX; i++)
|
|
{
|
|
CXzDecMtThread *t = &p->coders[i];
|
|
if (t->dec_created)
|
|
{
|
|
// we don't need to free dict here
|
|
XzUnpacker_Free(&t->dec);
|
|
t->dec_created = False;
|
|
}
|
|
}
|
|
}
|
|
XzDecMt_FreeOutBufs(p);
|
|
|
|
#endif
|
|
|
|
ISzAlloc_Free(p->alignOffsetAlloc.baseAlloc, pp);
|
|
}
|
|
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
static void XzDecMt_Callback_Parse(void *obj, unsigned coderIndex, CMtDecCallbackInfo *cc)
|
|
{
|
|
CXzDecMt *me = (CXzDecMt *)obj;
|
|
CXzDecMtThread *coder = &me->coders[coderIndex];
|
|
size_t srcSize = cc->srcSize;
|
|
|
|
cc->srcSize = 0;
|
|
cc->outPos = 0;
|
|
cc->state = MTDEC_PARSE_CONTINUE;
|
|
|
|
cc->canCreateNewThread = True;
|
|
|
|
if (cc->startCall)
|
|
{
|
|
coder->outPreSize = 0;
|
|
coder->inPreSize = 0;
|
|
coder->inPreHeaderSize = 0;
|
|
coder->parseState = MTDEC_PARSE_CONTINUE;
|
|
coder->parsing_Truncated = False;
|
|
coder->skipMode = False;
|
|
coder->codeRes = SZ_OK;
|
|
coder->status = CODER_STATUS_NOT_SPECIFIED;
|
|
coder->inCodeSize = 0;
|
|
coder->outCodeSize = 0;
|
|
|
|
coder->numStreams = me->numStreams;
|
|
coder->numTotalBlocks = me->numTotalBlocks;
|
|
coder->numBlocks = me->numBlocks;
|
|
|
|
if (!coder->dec_created)
|
|
{
|
|
XzUnpacker_Construct(&coder->dec, &me->alignOffsetAlloc.vt);
|
|
coder->dec_created = True;
|
|
}
|
|
|
|
XzUnpacker_Init(&coder->dec);
|
|
|
|
if (me->isBlockHeaderState_Parse)
|
|
{
|
|
coder->dec.streamFlags = me->streamFlags;
|
|
coder->atBlockHeader = True;
|
|
XzUnpacker_PrepareToRandomBlockDecoding(&coder->dec);
|
|
}
|
|
else
|
|
{
|
|
coder->atBlockHeader = False;
|
|
me->isBlockHeaderState_Parse = True;
|
|
}
|
|
|
|
coder->dec.numStartedStreams = me->numStreams;
|
|
coder->dec.numTotalBlocks = me->numTotalBlocks;
|
|
coder->dec.numBlocks = me->numBlocks;
|
|
}
|
|
|
|
while (!coder->skipMode)
|
|
{
|
|
ECoderStatus status;
|
|
SRes res;
|
|
size_t srcSize2 = srcSize;
|
|
size_t destSize = (size_t)0 - 1;
|
|
|
|
coder->dec.parseMode = True;
|
|
coder->dec.headerParsedOk = False;
|
|
|
|
PRF_STR_INT("Parse", srcSize2);
|
|
|
|
res = XzUnpacker_Code(&coder->dec,
|
|
NULL, &destSize,
|
|
cc->src, &srcSize2, cc->srcFinished,
|
|
CODER_FINISH_END, &status);
|
|
|
|
// PRF(printf(" res = %d, srcSize2 = %d", res, (unsigned)srcSize2));
|
|
|
|
coder->codeRes = res;
|
|
coder->status = status;
|
|
cc->srcSize += srcSize2;
|
|
srcSize -= srcSize2;
|
|
coder->inPreHeaderSize += srcSize2;
|
|
coder->inPreSize = coder->inPreHeaderSize;
|
|
|
|
if (res != SZ_OK)
|
|
{
|
|
cc->state =
|
|
coder->parseState = MTDEC_PARSE_END;
|
|
/*
|
|
if (res == SZ_ERROR_MEM)
|
|
return res;
|
|
return SZ_OK;
|
|
*/
|
|
return; // res;
|
|
}
|
|
|
|
if (coder->dec.headerParsedOk)
|
|
{
|
|
const CXzBlock *block = &coder->dec.block;
|
|
if (XzBlock_HasUnpackSize(block)
|
|
// && block->unpackSize <= me->props.outBlockMax
|
|
&& XzBlock_HasPackSize(block))
|
|
{
|
|
{
|
|
if (block->unpackSize * 2 * me->mtc.numStartedThreads > me->props.memUseMax)
|
|
{
|
|
cc->state = MTDEC_PARSE_OVERFLOW;
|
|
return; // SZ_OK;
|
|
}
|
|
}
|
|
{
|
|
UInt64 packSize = block->packSize;
|
|
UInt64 packSizeAligned = packSize + ((0 - (unsigned)packSize) & 3);
|
|
UInt32 checkSize = XzFlags_GetCheckSize(coder->dec.streamFlags);
|
|
UInt64 blockPackSum = coder->inPreSize + packSizeAligned + checkSize;
|
|
// if (blockPackSum <= me->props.inBlockMax)
|
|
// unpackBlockMaxSize
|
|
{
|
|
coder->blockPackSize_for_Index = (size_t)(coder->dec.blockHeaderSize + packSize + checkSize);
|
|
coder->blockPackTotal = (size_t)blockPackSum;
|
|
coder->outPreSize = (size_t)block->unpackSize;
|
|
coder->streamFlags = coder->dec.streamFlags;
|
|
me->streamFlags = coder->dec.streamFlags;
|
|
coder->skipMode = True;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
// if (coder->inPreSize <= me->props.inBlockMax)
|
|
{
|
|
if (!cc->srcFinished)
|
|
return; // SZ_OK;
|
|
cc->state =
|
|
coder->parseState = MTDEC_PARSE_END;
|
|
return; // SZ_OK;
|
|
}
|
|
cc->state = MTDEC_PARSE_OVERFLOW;
|
|
return; // SZ_OK;
|
|
}
|
|
|
|
// ---------- skipMode ----------
|
|
{
|
|
UInt64 rem = coder->blockPackTotal - coder->inPreSize;
|
|
size_t cur = srcSize;
|
|
if (cur > rem)
|
|
cur = (size_t)rem;
|
|
cc->srcSize += cur;
|
|
coder->inPreSize += cur;
|
|
srcSize -= cur;
|
|
|
|
if (coder->inPreSize == coder->blockPackTotal)
|
|
{
|
|
if (srcSize == 0)
|
|
{
|
|
if (!cc->srcFinished)
|
|
return; // SZ_OK;
|
|
cc->state = MTDEC_PARSE_END;
|
|
}
|
|
else if ((cc->src)[cc->srcSize] == 0) // we check control byte of next block
|
|
cc->state = MTDEC_PARSE_END;
|
|
else
|
|
{
|
|
cc->state = MTDEC_PARSE_NEW;
|
|
|
|
{
|
|
size_t blockMax = me->unpackBlockMaxSize;
|
|
if (blockMax < coder->outPreSize)
|
|
blockMax = coder->outPreSize;
|
|
{
|
|
UInt64 required = (UInt64)blockMax * (me->mtc.numStartedThreads + 1) * 2;
|
|
if (me->props.memUseMax < required)
|
|
cc->canCreateNewThread = False;
|
|
}
|
|
}
|
|
|
|
if (me->outSize_Defined)
|
|
{
|
|
// next block can be zero size
|
|
const UInt64 rem2 = me->outSize - me->outProcessed_Parse;
|
|
if (rem2 < coder->outPreSize)
|
|
{
|
|
coder->parsing_Truncated = True;
|
|
cc->state = MTDEC_PARSE_END;
|
|
}
|
|
me->outProcessed_Parse += coder->outPreSize;
|
|
}
|
|
}
|
|
}
|
|
else if (cc->srcFinished)
|
|
cc->state = MTDEC_PARSE_END;
|
|
else
|
|
return; // SZ_OK;
|
|
|
|
coder->parseState = cc->state;
|
|
cc->outPos = coder->outPreSize;
|
|
|
|
me->numStreams = coder->dec.numStartedStreams;
|
|
me->numTotalBlocks = coder->dec.numTotalBlocks;
|
|
me->numBlocks = coder->dec.numBlocks + 1;
|
|
return; // SZ_OK;
|
|
}
|
|
}
|
|
|
|
|
|
static SRes XzDecMt_Callback_PreCode(void *pp, unsigned coderIndex)
|
|
{
|
|
CXzDecMt *me = (CXzDecMt *)pp;
|
|
CXzDecMtThread *coder = &me->coders[coderIndex];
|
|
Byte *dest;
|
|
|
|
if (!coder->dec.headerParsedOk)
|
|
return SZ_OK;
|
|
|
|
dest = coder->outBuf;
|
|
|
|
if (!dest || coder->outBufSize < coder->outPreSize)
|
|
{
|
|
if (dest)
|
|
{
|
|
ISzAlloc_Free(me->allocMid, dest);
|
|
coder->outBuf = NULL;
|
|
coder->outBufSize = 0;
|
|
}
|
|
{
|
|
size_t outPreSize = coder->outPreSize;
|
|
if (outPreSize == 0)
|
|
outPreSize = 1;
|
|
dest = (Byte *)ISzAlloc_Alloc(me->allocMid, outPreSize);
|
|
}
|
|
if (!dest)
|
|
return SZ_ERROR_MEM;
|
|
coder->outBuf = dest;
|
|
coder->outBufSize = coder->outPreSize;
|
|
|
|
if (coder->outBufSize > me->unpackBlockMaxSize)
|
|
me->unpackBlockMaxSize = coder->outBufSize;
|
|
}
|
|
|
|
// return SZ_ERROR_MEM;
|
|
|
|
XzUnpacker_SetOutBuf(&coder->dec, coder->outBuf, coder->outBufSize);
|
|
|
|
{
|
|
SRes res = XzDecMix_Init(&coder->dec.decoder, &coder->dec.block, coder->outBuf, coder->outBufSize);
|
|
// res = SZ_ERROR_UNSUPPORTED; // to test
|
|
coder->codeRes = res;
|
|
if (res != SZ_OK)
|
|
{
|
|
// if (res == SZ_ERROR_MEM) return res;
|
|
if (me->props.ignoreErrors && res != SZ_ERROR_MEM)
|
|
return SZ_OK;
|
|
return res;
|
|
}
|
|
}
|
|
|
|
return SZ_OK;
|
|
}
|
|
|
|
|
|
static SRes XzDecMt_Callback_Code(void *pp, unsigned coderIndex,
|
|
const Byte *src, size_t srcSize, int srcFinished,
|
|
// int finished, int blockFinished,
|
|
UInt64 *inCodePos, UInt64 *outCodePos, int *stop)
|
|
{
|
|
CXzDecMt *me = (CXzDecMt *)pp;
|
|
CXzDecMtThread *coder = &me->coders[coderIndex];
|
|
|
|
*inCodePos = coder->inCodeSize;
|
|
*outCodePos = coder->outCodeSize;
|
|
*stop = True;
|
|
|
|
if (srcSize > coder->inPreSize - coder->inCodeSize)
|
|
return SZ_ERROR_FAIL;
|
|
|
|
if (coder->inCodeSize < coder->inPreHeaderSize)
|
|
{
|
|
size_t step = coder->inPreHeaderSize - coder->inCodeSize;
|
|
if (step > srcSize)
|
|
step = srcSize;
|
|
src += step;
|
|
srcSize -= step;
|
|
coder->inCodeSize += step;
|
|
*inCodePos = coder->inCodeSize;
|
|
if (coder->inCodeSize < coder->inPreHeaderSize)
|
|
{
|
|
*stop = False;
|
|
return SZ_OK;
|
|
}
|
|
}
|
|
|
|
if (!coder->dec.headerParsedOk)
|
|
return SZ_OK;
|
|
if (!coder->outBuf)
|
|
return SZ_OK;
|
|
|
|
if (coder->codeRes == SZ_OK)
|
|
{
|
|
ECoderStatus status;
|
|
SRes res;
|
|
size_t srcProcessed = srcSize;
|
|
size_t outSizeCur = coder->outPreSize - coder->dec.outDataWritten;
|
|
|
|
// PRF(printf("\nCallback_Code: Code %d %d\n", (unsigned)srcSize, (unsigned)outSizeCur));
|
|
|
|
res = XzUnpacker_Code(&coder->dec,
|
|
NULL, &outSizeCur,
|
|
src, &srcProcessed, srcFinished,
|
|
// coder->finishedWithMark ? CODER_FINISH_END : CODER_FINISH_ANY,
|
|
CODER_FINISH_END,
|
|
&status);
|
|
|
|
// PRF(printf(" res = %d, srcSize2 = %d, outSizeCur = %d", res, (unsigned)srcProcessed, (unsigned)outSizeCur));
|
|
|
|
coder->codeRes = res;
|
|
coder->status = status;
|
|
coder->inCodeSize += srcProcessed;
|
|
coder->outCodeSize = coder->dec.outDataWritten;
|
|
*inCodePos = coder->inCodeSize;
|
|
*outCodePos = coder->outCodeSize;
|
|
|
|
if (res == SZ_OK)
|
|
{
|
|
if (srcProcessed == srcSize)
|
|
*stop = False;
|
|
return SZ_OK;
|
|
}
|
|
}
|
|
|
|
if (me->props.ignoreErrors && coder->codeRes != SZ_ERROR_MEM)
|
|
{
|
|
*inCodePos = coder->inPreSize;
|
|
*outCodePos = coder->outPreSize;
|
|
return SZ_OK;
|
|
}
|
|
return coder->codeRes;
|
|
}
|
|
|
|
|
|
#define XZDECMT_STREAM_WRITE_STEP (1 << 24)
|
|
|
|
static SRes XzDecMt_Callback_Write(void *pp, unsigned coderIndex,
|
|
BoolInt needWriteToStream,
|
|
const Byte *src, size_t srcSize, BoolInt isCross,
|
|
// int srcFinished,
|
|
BoolInt *needContinue,
|
|
BoolInt *canRecode)
|
|
{
|
|
CXzDecMt *me = (CXzDecMt *)pp;
|
|
const CXzDecMtThread *coder = &me->coders[coderIndex];
|
|
|
|
// PRF(printf("\nWrite processed = %d srcSize = %d\n", (unsigned)me->mtc.inProcessed, (unsigned)srcSize));
|
|
|
|
*needContinue = False;
|
|
*canRecode = True;
|
|
|
|
if (!needWriteToStream)
|
|
return SZ_OK;
|
|
|
|
if (!coder->dec.headerParsedOk || !coder->outBuf)
|
|
{
|
|
if (me->finishedDecoderIndex < 0)
|
|
me->finishedDecoderIndex = (int)coderIndex;
|
|
return SZ_OK;
|
|
}
|
|
|
|
if (me->finishedDecoderIndex >= 0)
|
|
return SZ_OK;
|
|
|
|
me->mtc.inProcessed += coder->inCodeSize;
|
|
|
|
*canRecode = False;
|
|
|
|
{
|
|
SRes res;
|
|
size_t size = coder->outCodeSize;
|
|
Byte *data = coder->outBuf;
|
|
|
|
// we use in me->dec: sha, numBlocks, indexSize
|
|
|
|
if (!me->isBlockHeaderState_Write)
|
|
{
|
|
XzUnpacker_PrepareToRandomBlockDecoding(&me->dec);
|
|
me->dec.decodeOnlyOneBlock = False;
|
|
me->dec.numStartedStreams = coder->dec.numStartedStreams;
|
|
me->dec.streamFlags = coder->streamFlags;
|
|
|
|
me->isBlockHeaderState_Write = True;
|
|
}
|
|
|
|
me->dec.numTotalBlocks = coder->dec.numTotalBlocks;
|
|
XzUnpacker_UpdateIndex(&me->dec, coder->blockPackSize_for_Index, coder->outPreSize);
|
|
|
|
if (coder->outPreSize != size)
|
|
{
|
|
if (me->props.ignoreErrors)
|
|
{
|
|
memset(data + size, 0, coder->outPreSize - size);
|
|
size = coder->outPreSize;
|
|
}
|
|
// me->numBadBlocks++;
|
|
if (me->mainErrorCode == SZ_OK)
|
|
{
|
|
if ((int)coder->status == LZMA_STATUS_NEEDS_MORE_INPUT)
|
|
me->mainErrorCode = SZ_ERROR_INPUT_EOF;
|
|
else
|
|
me->mainErrorCode = SZ_ERROR_DATA;
|
|
}
|
|
}
|
|
|
|
if (me->writeRes != SZ_OK)
|
|
return me->writeRes;
|
|
|
|
res = SZ_OK;
|
|
{
|
|
if (me->outSize_Defined)
|
|
{
|
|
const UInt64 rem = me->outSize - me->outProcessed;
|
|
if (size > rem)
|
|
size = (SizeT)rem;
|
|
}
|
|
|
|
for (;;)
|
|
{
|
|
size_t cur = size;
|
|
size_t written;
|
|
if (cur > XZDECMT_STREAM_WRITE_STEP)
|
|
cur = XZDECMT_STREAM_WRITE_STEP;
|
|
|
|
written = ISeqOutStream_Write(me->outStream, data, cur);
|
|
|
|
// PRF(printf("\nWritten ask = %d written = %d\n", (unsigned)cur, (unsigned)written));
|
|
|
|
me->outProcessed += written;
|
|
if (written != cur)
|
|
{
|
|
me->writeRes = SZ_ERROR_WRITE;
|
|
res = me->writeRes;
|
|
break;
|
|
}
|
|
data += cur;
|
|
size -= cur;
|
|
// PRF_STR_INT("Written size =", size);
|
|
if (size == 0)
|
|
break;
|
|
res = MtProgress_ProgressAdd(&me->mtc.mtProgress, 0, 0);
|
|
if (res != SZ_OK)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (coder->codeRes != SZ_OK)
|
|
if (!me->props.ignoreErrors)
|
|
{
|
|
me->finishedDecoderIndex = (int)coderIndex;
|
|
return res;
|
|
}
|
|
|
|
RINOK(res);
|
|
|
|
if (coder->inPreSize != coder->inCodeSize
|
|
|| coder->blockPackTotal != coder->inCodeSize)
|
|
{
|
|
me->finishedDecoderIndex = (int)coderIndex;
|
|
return SZ_OK;
|
|
}
|
|
|
|
if (coder->parseState != MTDEC_PARSE_END)
|
|
{
|
|
*needContinue = True;
|
|
return SZ_OK;
|
|
}
|
|
}
|
|
|
|
// (coder->state == MTDEC_PARSE_END) means that there are no other working threads
|
|
// so we can use mtc variables without lock
|
|
|
|
PRF_STR_INT("Write MTDEC_PARSE_END", me->mtc.inProcessed);
|
|
|
|
me->mtc.mtProgress.totalInSize = me->mtc.inProcessed;
|
|
{
|
|
CXzUnpacker *dec = &me->dec;
|
|
|
|
PRF_STR_INT("PostSingle", srcSize);
|
|
|
|
{
|
|
size_t srcProcessed = srcSize;
|
|
ECoderStatus status;
|
|
size_t outSizeCur = 0;
|
|
SRes res;
|
|
|
|
// dec->decodeOnlyOneBlock = False;
|
|
dec->decodeToStreamSignature = True;
|
|
|
|
me->mainDecoderWasCalled = True;
|
|
|
|
if (coder->parsing_Truncated)
|
|
{
|
|
me->parsing_Truncated = True;
|
|
return SZ_OK;
|
|
}
|
|
|
|
/*
|
|
We have processed all xz-blocks of stream,
|
|
And xz unpacker is at XZ_STATE_BLOCK_HEADER state, where
|
|
(src) is a pointer to xz-Index structure.
|
|
We finish reading of current xz-Stream, including Zero padding after xz-Stream.
|
|
We exit, if we reach extra byte (first byte of new-Stream or another data).
|
|
But we don't update input stream pointer for that new extra byte.
|
|
If extra byte is not correct first byte of xz-signature,
|
|
we have SZ_ERROR_NO_ARCHIVE error here.
|
|
*/
|
|
|
|
res = XzUnpacker_Code(dec,
|
|
NULL, &outSizeCur,
|
|
src, &srcProcessed,
|
|
me->mtc.readWasFinished, // srcFinished
|
|
CODER_FINISH_END, // CODER_FINISH_ANY,
|
|
&status);
|
|
|
|
// res = SZ_ERROR_ARCHIVE; // for failure test
|
|
|
|
me->status = status;
|
|
me->codeRes = res;
|
|
|
|
if (isCross)
|
|
me->mtc.crossStart += srcProcessed;
|
|
|
|
me->mtc.inProcessed += srcProcessed;
|
|
me->mtc.mtProgress.totalInSize = me->mtc.inProcessed;
|
|
|
|
srcSize -= srcProcessed;
|
|
src += srcProcessed;
|
|
|
|
if (res != SZ_OK)
|
|
{
|
|
return SZ_OK;
|
|
// return res;
|
|
}
|
|
|
|
if (dec->state == XZ_STATE_STREAM_HEADER)
|
|
{
|
|
*needContinue = True;
|
|
me->isBlockHeaderState_Parse = False;
|
|
me->isBlockHeaderState_Write = False;
|
|
|
|
if (!isCross)
|
|
{
|
|
Byte *crossBuf = MtDec_GetCrossBuff(&me->mtc);
|
|
if (!crossBuf)
|
|
return SZ_ERROR_MEM;
|
|
if (srcSize != 0)
|
|
memcpy(crossBuf, src, srcSize);
|
|
me->mtc.crossStart = 0;
|
|
me->mtc.crossEnd = srcSize;
|
|
}
|
|
|
|
PRF_STR_INT("XZ_STATE_STREAM_HEADER crossEnd = ", (unsigned)me->mtc.crossEnd);
|
|
|
|
return SZ_OK;
|
|
}
|
|
|
|
if (status != CODER_STATUS_NEEDS_MORE_INPUT || srcSize != 0)
|
|
{
|
|
return SZ_ERROR_FAIL;
|
|
}
|
|
|
|
if (me->mtc.readWasFinished)
|
|
{
|
|
return SZ_OK;
|
|
}
|
|
}
|
|
|
|
{
|
|
size_t inPos;
|
|
size_t inLim;
|
|
// const Byte *inData;
|
|
UInt64 inProgressPrev = me->mtc.inProcessed;
|
|
|
|
// XzDecMt_Prepare_InBuf_ST(p);
|
|
Byte *crossBuf = MtDec_GetCrossBuff(&me->mtc);
|
|
if (!crossBuf)
|
|
return SZ_ERROR_MEM;
|
|
|
|
inPos = 0;
|
|
inLim = 0;
|
|
|
|
// inData = crossBuf;
|
|
|
|
for (;;)
|
|
{
|
|
SizeT inProcessed;
|
|
SizeT outProcessed;
|
|
ECoderStatus status;
|
|
SRes res;
|
|
|
|
if (inPos == inLim)
|
|
{
|
|
if (!me->mtc.readWasFinished)
|
|
{
|
|
inPos = 0;
|
|
inLim = me->mtc.inBufSize;
|
|
me->mtc.readRes = ISeqInStream_Read(me->inStream, (void *)crossBuf, &inLim);
|
|
me->mtc.readProcessed += inLim;
|
|
if (inLim == 0 || me->mtc.readRes != SZ_OK)
|
|
me->mtc.readWasFinished = True;
|
|
}
|
|
}
|
|
|
|
inProcessed = inLim - inPos;
|
|
outProcessed = 0;
|
|
|
|
res = XzUnpacker_Code(dec,
|
|
NULL, &outProcessed,
|
|
crossBuf + inPos, &inProcessed,
|
|
(inProcessed == 0), // srcFinished
|
|
CODER_FINISH_END, &status);
|
|
|
|
me->codeRes = res;
|
|
me->status = status;
|
|
inPos += inProcessed;
|
|
me->mtc.inProcessed += inProcessed;
|
|
me->mtc.mtProgress.totalInSize = me->mtc.inProcessed;
|
|
|
|
if (res != SZ_OK)
|
|
{
|
|
return SZ_OK;
|
|
// return res;
|
|
}
|
|
|
|
if (dec->state == XZ_STATE_STREAM_HEADER)
|
|
{
|
|
*needContinue = True;
|
|
me->mtc.crossStart = inPos;
|
|
me->mtc.crossEnd = inLim;
|
|
me->isBlockHeaderState_Parse = False;
|
|
me->isBlockHeaderState_Write = False;
|
|
return SZ_OK;
|
|
}
|
|
|
|
if (status != CODER_STATUS_NEEDS_MORE_INPUT)
|
|
return SZ_ERROR_FAIL;
|
|
|
|
if (me->mtc.progress)
|
|
{
|
|
UInt64 inDelta = me->mtc.inProcessed - inProgressPrev;
|
|
if (inDelta >= (1 << 22))
|
|
{
|
|
RINOK(MtProgress_Progress_ST(&me->mtc.mtProgress));
|
|
inProgressPrev = me->mtc.inProcessed;
|
|
}
|
|
}
|
|
if (me->mtc.readWasFinished)
|
|
return SZ_OK;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
void XzStatInfo_Clear(CXzStatInfo *p)
|
|
{
|
|
p->InSize = 0;
|
|
p->OutSize = 0;
|
|
|
|
p->NumStreams = 0;
|
|
p->NumBlocks = 0;
|
|
|
|
p->UnpackSize_Defined = False;
|
|
|
|
p->NumStreams_Defined = False;
|
|
p->NumBlocks_Defined = False;
|
|
|
|
p->DataAfterEnd = False;
|
|
p->DecodingTruncated = False;
|
|
|
|
p->DecodeRes = SZ_OK;
|
|
p->ReadRes = SZ_OK;
|
|
p->ProgressRes = SZ_OK;
|
|
|
|
p->CombinedRes = SZ_OK;
|
|
p->CombinedRes_Type = SZ_OK;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
XzDecMt_Decode_ST() can return SZ_OK or the following errors
|
|
- SZ_ERROR_MEM for memory allocation error
|
|
- error from XzUnpacker_Code() function
|
|
- SZ_ERROR_WRITE for ISeqOutStream::Write(). stat->CombinedRes_Type = SZ_ERROR_WRITE in that case
|
|
- ICompressProgress::Progress() error, stat->CombinedRes_Type = SZ_ERROR_PROGRESS.
|
|
But XzDecMt_Decode_ST() doesn't return ISeqInStream::Read() errors.
|
|
ISeqInStream::Read() result is set to p->readRes.
|
|
also it can set stat->CombinedRes_Type to SZ_ERROR_WRITE or SZ_ERROR_PROGRESS.
|
|
*/
|
|
|
|
static SRes XzDecMt_Decode_ST(CXzDecMt *p
|
|
#ifndef _7ZIP_ST
|
|
, BoolInt tMode
|
|
#endif
|
|
, CXzStatInfo *stat)
|
|
{
|
|
size_t outPos;
|
|
size_t inPos, inLim;
|
|
const Byte *inData;
|
|
UInt64 inPrev, outPrev;
|
|
|
|
CXzUnpacker *dec;
|
|
|
|
#ifndef _7ZIP_ST
|
|
if (tMode)
|
|
{
|
|
XzDecMt_FreeOutBufs(p);
|
|
tMode = MtDec_PrepareRead(&p->mtc);
|
|
}
|
|
#endif
|
|
|
|
if (!p->outBuf || p->outBufSize != p->props.outStep_ST)
|
|
{
|
|
ISzAlloc_Free(p->allocMid, p->outBuf);
|
|
p->outBufSize = 0;
|
|
p->outBuf = (Byte *)ISzAlloc_Alloc(p->allocMid, p->props.outStep_ST);
|
|
if (!p->outBuf)
|
|
return SZ_ERROR_MEM;
|
|
p->outBufSize = p->props.outStep_ST;
|
|
}
|
|
|
|
if (!p->inBuf || p->inBufSize != p->props.inBufSize_ST)
|
|
{
|
|
ISzAlloc_Free(p->allocMid, p->inBuf);
|
|
p->inBufSize = 0;
|
|
p->inBuf = (Byte *)ISzAlloc_Alloc(p->allocMid, p->props.inBufSize_ST);
|
|
if (!p->inBuf)
|
|
return SZ_ERROR_MEM;
|
|
p->inBufSize = p->props.inBufSize_ST;
|
|
}
|
|
|
|
dec = &p->dec;
|
|
dec->decodeToStreamSignature = False;
|
|
// dec->decodeOnlyOneBlock = False;
|
|
|
|
XzUnpacker_SetOutBuf(dec, NULL, 0);
|
|
|
|
inPrev = p->inProcessed;
|
|
outPrev = p->outProcessed;
|
|
|
|
inPos = 0;
|
|
inLim = 0;
|
|
inData = NULL;
|
|
outPos = 0;
|
|
|
|
for (;;)
|
|
{
|
|
SizeT outSize;
|
|
BoolInt finished;
|
|
ECoderFinishMode finishMode;
|
|
SizeT inProcessed;
|
|
ECoderStatus status;
|
|
SRes res;
|
|
|
|
SizeT outProcessed;
|
|
|
|
|
|
|
|
if (inPos == inLim)
|
|
{
|
|
#ifndef _7ZIP_ST
|
|
if (tMode)
|
|
{
|
|
inData = MtDec_Read(&p->mtc, &inLim);
|
|
inPos = 0;
|
|
if (inData)
|
|
continue;
|
|
tMode = False;
|
|
inLim = 0;
|
|
}
|
|
#endif
|
|
|
|
if (!p->readWasFinished)
|
|
{
|
|
inPos = 0;
|
|
inLim = p->inBufSize;
|
|
inData = p->inBuf;
|
|
p->readRes = ISeqInStream_Read(p->inStream, (void *)p->inBuf, &inLim);
|
|
p->readProcessed += inLim;
|
|
if (inLim == 0 || p->readRes != SZ_OK)
|
|
p->readWasFinished = True;
|
|
}
|
|
}
|
|
|
|
outSize = p->props.outStep_ST - outPos;
|
|
|
|
finishMode = CODER_FINISH_ANY;
|
|
if (p->outSize_Defined)
|
|
{
|
|
const UInt64 rem = p->outSize - p->outProcessed;
|
|
if (outSize >= rem)
|
|
{
|
|
outSize = (SizeT)rem;
|
|
if (p->finishMode)
|
|
finishMode = CODER_FINISH_END;
|
|
}
|
|
}
|
|
|
|
inProcessed = inLim - inPos;
|
|
outProcessed = outSize;
|
|
|
|
res = XzUnpacker_Code(dec, p->outBuf + outPos, &outProcessed,
|
|
inData + inPos, &inProcessed,
|
|
(inPos == inLim), // srcFinished
|
|
finishMode, &status);
|
|
|
|
p->codeRes = res;
|
|
p->status = status;
|
|
|
|
inPos += inProcessed;
|
|
outPos += outProcessed;
|
|
p->inProcessed += inProcessed;
|
|
p->outProcessed += outProcessed;
|
|
|
|
finished = ((inProcessed == 0 && outProcessed == 0) || res != SZ_OK);
|
|
|
|
if (finished || outProcessed >= outSize)
|
|
if (outPos != 0)
|
|
{
|
|
const size_t written = ISeqOutStream_Write(p->outStream, p->outBuf, outPos);
|
|
// p->outProcessed += written; // 21.01: BUG fixed
|
|
if (written != outPos)
|
|
{
|
|
stat->CombinedRes_Type = SZ_ERROR_WRITE;
|
|
return SZ_ERROR_WRITE;
|
|
}
|
|
outPos = 0;
|
|
}
|
|
|
|
if (p->progress && res == SZ_OK)
|
|
{
|
|
if (p->inProcessed - inPrev >= (1 << 22) ||
|
|
p->outProcessed - outPrev >= (1 << 22))
|
|
{
|
|
res = ICompressProgress_Progress(p->progress, p->inProcessed, p->outProcessed);
|
|
if (res != SZ_OK)
|
|
{
|
|
stat->CombinedRes_Type = SZ_ERROR_PROGRESS;
|
|
stat->ProgressRes = res;
|
|
return res;
|
|
}
|
|
inPrev = p->inProcessed;
|
|
outPrev = p->outProcessed;
|
|
}
|
|
}
|
|
|
|
if (finished)
|
|
{
|
|
// p->codeRes is preliminary error from XzUnpacker_Code.
|
|
// and it can be corrected later as final result
|
|
// so we return SZ_OK here instead of (res);
|
|
return SZ_OK;
|
|
// return res;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
XzStatInfo_SetStat() transforms
|
|
CXzUnpacker return code and status to combined CXzStatInfo results.
|
|
it can convert SZ_OK to SZ_ERROR_INPUT_EOF
|
|
it can convert SZ_ERROR_NO_ARCHIVE to SZ_OK and (DataAfterEnd = 1)
|
|
*/
|
|
|
|
static void XzStatInfo_SetStat(const CXzUnpacker *dec,
|
|
int finishMode,
|
|
// UInt64 readProcessed,
|
|
UInt64 inProcessed,
|
|
SRes res, // it's result from CXzUnpacker unpacker
|
|
ECoderStatus status,
|
|
BoolInt decodingTruncated,
|
|
CXzStatInfo *stat)
|
|
{
|
|
UInt64 extraSize;
|
|
|
|
stat->DecodingTruncated = (Byte)(decodingTruncated ? 1 : 0);
|
|
stat->InSize = inProcessed;
|
|
stat->NumStreams = dec->numStartedStreams;
|
|
stat->NumBlocks = dec->numTotalBlocks;
|
|
|
|
stat->UnpackSize_Defined = True;
|
|
stat->NumStreams_Defined = True;
|
|
stat->NumBlocks_Defined = True;
|
|
|
|
extraSize = XzUnpacker_GetExtraSize(dec);
|
|
|
|
if (res == SZ_OK)
|
|
{
|
|
if (status == CODER_STATUS_NEEDS_MORE_INPUT)
|
|
{
|
|
// CODER_STATUS_NEEDS_MORE_INPUT is expected status for correct xz streams
|
|
// any extra data is part of correct data
|
|
extraSize = 0;
|
|
// if xz stream was not finished, then we need more data
|
|
if (!XzUnpacker_IsStreamWasFinished(dec))
|
|
res = SZ_ERROR_INPUT_EOF;
|
|
}
|
|
else
|
|
{
|
|
// CODER_STATUS_FINISHED_WITH_MARK is not possible for multi stream xz decoding
|
|
// so he we have (status == CODER_STATUS_NOT_FINISHED)
|
|
// if (status != CODER_STATUS_FINISHED_WITH_MARK)
|
|
if (!decodingTruncated || finishMode)
|
|
res = SZ_ERROR_DATA;
|
|
}
|
|
}
|
|
else if (res == SZ_ERROR_NO_ARCHIVE)
|
|
{
|
|
/*
|
|
SZ_ERROR_NO_ARCHIVE is possible for 2 states:
|
|
XZ_STATE_STREAM_HEADER - if bad signature or bad CRC
|
|
XZ_STATE_STREAM_PADDING - if non-zero padding data
|
|
extraSize and inProcessed don't include "bad" byte
|
|
*/
|
|
// if (inProcessed == extraSize), there was no any good xz stream header, and we keep error
|
|
if (inProcessed != extraSize) // if there were good xz streams before error
|
|
{
|
|
// if (extraSize != 0 || readProcessed != inProcessed)
|
|
{
|
|
// he we suppose that all xz streams were finsihed OK, and we have
|
|
// some extra data after all streams
|
|
stat->DataAfterEnd = True;
|
|
res = SZ_OK;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (stat->DecodeRes == SZ_OK)
|
|
stat->DecodeRes = res;
|
|
|
|
stat->InSize -= extraSize;
|
|
}
|
|
|
|
|
|
|
|
SRes XzDecMt_Decode(CXzDecMtHandle pp,
|
|
const CXzDecMtProps *props,
|
|
const UInt64 *outDataSize, int finishMode,
|
|
ISeqOutStream *outStream,
|
|
// Byte *outBuf, size_t *outBufSize,
|
|
ISeqInStream *inStream,
|
|
// const Byte *inData, size_t inDataSize,
|
|
CXzStatInfo *stat,
|
|
int *isMT,
|
|
ICompressProgress *progress)
|
|
{
|
|
CXzDecMt *p = (CXzDecMt *)pp;
|
|
#ifndef _7ZIP_ST
|
|
BoolInt tMode;
|
|
#endif
|
|
|
|
XzStatInfo_Clear(stat);
|
|
|
|
p->props = *props;
|
|
|
|
p->inStream = inStream;
|
|
p->outStream = outStream;
|
|
p->progress = progress;
|
|
// p->stat = stat;
|
|
|
|
p->outSize = 0;
|
|
p->outSize_Defined = False;
|
|
if (outDataSize)
|
|
{
|
|
p->outSize_Defined = True;
|
|
p->outSize = *outDataSize;
|
|
}
|
|
|
|
p->finishMode = finishMode;
|
|
|
|
// p->outSize = 457; p->outSize_Defined = True; p->finishMode = False; // for test
|
|
|
|
p->writeRes = SZ_OK;
|
|
p->outProcessed = 0;
|
|
p->inProcessed = 0;
|
|
p->readProcessed = 0;
|
|
p->readWasFinished = False;
|
|
p->readRes = SZ_OK;
|
|
|
|
p->codeRes = SZ_OK;
|
|
p->status = CODER_STATUS_NOT_SPECIFIED;
|
|
|
|
XzUnpacker_Init(&p->dec);
|
|
|
|
*isMT = False;
|
|
|
|
/*
|
|
p->outBuf = NULL;
|
|
p->outBufSize = 0;
|
|
if (!outStream)
|
|
{
|
|
p->outBuf = outBuf;
|
|
p->outBufSize = *outBufSize;
|
|
*outBufSize = 0;
|
|
}
|
|
*/
|
|
|
|
|
|
#ifndef _7ZIP_ST
|
|
|
|
p->isBlockHeaderState_Parse = False;
|
|
p->isBlockHeaderState_Write = False;
|
|
// p->numBadBlocks = 0;
|
|
p->mainErrorCode = SZ_OK;
|
|
p->mainDecoderWasCalled = False;
|
|
|
|
tMode = False;
|
|
|
|
if (p->props.numThreads > 1)
|
|
{
|
|
IMtDecCallback2 vt;
|
|
BoolInt needContinue;
|
|
SRes res;
|
|
// we just free ST buffers here
|
|
// but we still keep state variables, that was set in XzUnpacker_Init()
|
|
XzDecMt_FreeSt(p);
|
|
|
|
p->outProcessed_Parse = 0;
|
|
p->parsing_Truncated = False;
|
|
|
|
p->numStreams = 0;
|
|
p->numTotalBlocks = 0;
|
|
p->numBlocks = 0;
|
|
p->finishedDecoderIndex = -1;
|
|
|
|
if (!p->mtc_WasConstructed)
|
|
{
|
|
p->mtc_WasConstructed = True;
|
|
MtDec_Construct(&p->mtc);
|
|
}
|
|
|
|
p->mtc.mtCallback = &vt;
|
|
p->mtc.mtCallbackObject = p;
|
|
|
|
p->mtc.progress = progress;
|
|
p->mtc.inStream = inStream;
|
|
p->mtc.alloc = &p->alignOffsetAlloc.vt;
|
|
// p->mtc.inData = inData;
|
|
// p->mtc.inDataSize = inDataSize;
|
|
p->mtc.inBufSize = p->props.inBufSize_MT;
|
|
// p->mtc.inBlockMax = p->props.inBlockMax;
|
|
p->mtc.numThreadsMax = p->props.numThreads;
|
|
|
|
*isMT = True;
|
|
|
|
vt.Parse = XzDecMt_Callback_Parse;
|
|
vt.PreCode = XzDecMt_Callback_PreCode;
|
|
vt.Code = XzDecMt_Callback_Code;
|
|
vt.Write = XzDecMt_Callback_Write;
|
|
|
|
|
|
res = MtDec_Code(&p->mtc);
|
|
|
|
|
|
stat->InSize = p->mtc.inProcessed;
|
|
|
|
p->inProcessed = p->mtc.inProcessed;
|
|
p->readRes = p->mtc.readRes;
|
|
p->readWasFinished = p->mtc.readWasFinished;
|
|
p->readProcessed = p->mtc.readProcessed;
|
|
|
|
tMode = True;
|
|
needContinue = False;
|
|
|
|
if (res == SZ_OK)
|
|
{
|
|
if (p->mtc.mtProgress.res != SZ_OK)
|
|
{
|
|
res = p->mtc.mtProgress.res;
|
|
stat->ProgressRes = res;
|
|
stat->CombinedRes_Type = SZ_ERROR_PROGRESS;
|
|
}
|
|
else
|
|
needContinue = p->mtc.needContinue;
|
|
}
|
|
|
|
if (!needContinue)
|
|
{
|
|
{
|
|
SRes codeRes;
|
|
BoolInt truncated = False;
|
|
ECoderStatus status;
|
|
const CXzUnpacker *dec;
|
|
|
|
stat->OutSize = p->outProcessed;
|
|
|
|
if (p->finishedDecoderIndex >= 0)
|
|
{
|
|
const CXzDecMtThread *coder = &p->coders[(unsigned)p->finishedDecoderIndex];
|
|
codeRes = coder->codeRes;
|
|
dec = &coder->dec;
|
|
status = coder->status;
|
|
}
|
|
else if (p->mainDecoderWasCalled)
|
|
{
|
|
codeRes = p->codeRes;
|
|
dec = &p->dec;
|
|
status = p->status;
|
|
truncated = p->parsing_Truncated;
|
|
}
|
|
else
|
|
return SZ_ERROR_FAIL;
|
|
|
|
if (p->mainErrorCode != SZ_OK)
|
|
stat->DecodeRes = p->mainErrorCode;
|
|
|
|
XzStatInfo_SetStat(dec, p->finishMode,
|
|
// p->mtc.readProcessed,
|
|
p->mtc.inProcessed,
|
|
codeRes, status,
|
|
truncated,
|
|
stat);
|
|
}
|
|
|
|
if (res == SZ_OK)
|
|
{
|
|
stat->ReadRes = p->mtc.readRes;
|
|
|
|
if (p->writeRes != SZ_OK)
|
|
{
|
|
res = p->writeRes;
|
|
stat->CombinedRes_Type = SZ_ERROR_WRITE;
|
|
}
|
|
else if (p->mtc.readRes != SZ_OK
|
|
// && p->mtc.inProcessed == p->mtc.readProcessed
|
|
&& stat->DecodeRes == SZ_ERROR_INPUT_EOF)
|
|
{
|
|
res = p->mtc.readRes;
|
|
stat->CombinedRes_Type = SZ_ERROR_READ;
|
|
}
|
|
else if (stat->DecodeRes != SZ_OK)
|
|
res = stat->DecodeRes;
|
|
}
|
|
|
|
stat->CombinedRes = res;
|
|
if (stat->CombinedRes_Type == SZ_OK)
|
|
stat->CombinedRes_Type = res;
|
|
return res;
|
|
}
|
|
|
|
PRF_STR("----- decoding ST -----");
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
*isMT = False;
|
|
|
|
{
|
|
SRes res = XzDecMt_Decode_ST(p
|
|
#ifndef _7ZIP_ST
|
|
, tMode
|
|
#endif
|
|
, stat
|
|
);
|
|
|
|
#ifndef _7ZIP_ST
|
|
// we must set error code from MT decoding at first
|
|
if (p->mainErrorCode != SZ_OK)
|
|
stat->DecodeRes = p->mainErrorCode;
|
|
#endif
|
|
|
|
XzStatInfo_SetStat(&p->dec,
|
|
p->finishMode,
|
|
// p->readProcessed,
|
|
p->inProcessed,
|
|
p->codeRes, p->status,
|
|
False, // truncated
|
|
stat);
|
|
|
|
stat->ReadRes = p->readRes;
|
|
|
|
if (res == SZ_OK)
|
|
{
|
|
if (p->readRes != SZ_OK
|
|
// && p->inProcessed == p->readProcessed
|
|
&& stat->DecodeRes == SZ_ERROR_INPUT_EOF)
|
|
{
|
|
// we set read error as combined error, only if that error was the reason
|
|
// of decoding problem
|
|
res = p->readRes;
|
|
stat->CombinedRes_Type = SZ_ERROR_READ;
|
|
}
|
|
else if (stat->DecodeRes != SZ_OK)
|
|
res = stat->DecodeRes;
|
|
}
|
|
|
|
stat->CombinedRes = res;
|
|
if (stat->CombinedRes_Type == SZ_OK)
|
|
stat->CombinedRes_Type = res;
|
|
return res;
|
|
}
|
|
}
|