7z: Update from 19.00 to 21.07

This commit is contained in:
Ani 2022-04-23 11:11:20 +01:00 committed by Megamouse
parent f6de42a2ae
commit 7ef112cf30
59 changed files with 8366 additions and 2483 deletions

View file

@ -1,5 +1,5 @@
/* XzIn.c - Xz input
2018-07-04 : Igor Pavlov : Public domain */
2021-09-04 : Igor Pavlov : Public domain */
#include "Precomp.h"
@ -26,7 +26,8 @@ SRes Xz_ReadHeader(CXzStreamFlags *p, ISeqInStream *inStream)
#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; }
if (s == 0) return SZ_ERROR_ARCHIVE; \
pos += s; }
SRes XzBlock_ReadHeader(CXzBlock *p, ISeqInStream *inStream, BoolInt *isIndex, UInt32 *headerSizeRes)
{
@ -152,7 +153,7 @@ static SRes Xz_ReadBackward(CXzStream *p, ILookInStream *stream, Int64 *startOff
{
UInt64 indexSize;
Byte buf[XZ_STREAM_FOOTER_SIZE];
UInt64 pos = *startOffset;
UInt64 pos = (UInt64)*startOffset;
if ((pos & 3) != 0 || pos < XZ_STREAM_FOOTER_SIZE)
return SZ_ERROR_NO_ARCHIVE;
@ -202,8 +203,13 @@ static SRes Xz_ReadBackward(CXzStream *p, ILookInStream *stream, Int64 *startOff
if (!XzFlags_IsSupported(p->flags))
return SZ_ERROR_UNSUPPORTED;
if (GetUi32(buf) != CrcCalc(buf + 4, 6))
return SZ_ERROR_ARCHIVE;
{
/* to eliminate GCC 6.3 warning:
dereferencing type-punned pointer will break strict-aliasing rules */
const Byte *buf_ptr = buf;
if (GetUi32(buf_ptr) != CrcCalc(buf + 4, 6))
return SZ_ERROR_ARCHIVE;
}
indexSize = ((UInt64)GetUi32(buf + 4) + 1) << 2;
@ -222,7 +228,7 @@ static SRes Xz_ReadBackward(CXzStream *p, ILookInStream *stream, Int64 *startOff
return SZ_ERROR_ARCHIVE;
pos -= (totalSize + XZ_STREAM_HEADER_SIZE);
RINOK(LookInStream_SeekTo(stream, pos));
*startOffset = pos;
*startOffset = (Int64)pos;
}
{
CXzStreamFlags headerFlags;
@ -294,12 +300,12 @@ SRes Xzs_ReadBackward(CXzs *p, ILookInStream *stream, Int64 *startOffset, ICompr
SRes res;
Xz_Construct(&st);
res = Xz_ReadBackward(&st, stream, startOffset, alloc);
st.startOffset = *startOffset;
st.startOffset = (UInt64)*startOffset;
RINOK(res);
if (p->num == p->numAllocated)
{
size_t newNum = p->num + p->num / 4 + 1;
Byte *data = (Byte *)ISzAlloc_Alloc(alloc, newNum * sizeof(CXzStream));
const size_t newNum = p->num + p->num / 4 + 1;
void *data = ISzAlloc_Alloc(alloc, newNum * sizeof(CXzStream));
if (!data)
return SZ_ERROR_MEM;
p->numAllocated = newNum;
@ -311,8 +317,8 @@ SRes Xzs_ReadBackward(CXzs *p, ILookInStream *stream, Int64 *startOffset, ICompr
p->streams[p->num++] = st;
if (*startOffset == 0)
break;
RINOK(LookInStream_SeekTo(stream, *startOffset));
if (progress && ICompressProgress_Progress(progress, endOffset - *startOffset, (UInt64)(Int64)-1) != SZ_OK)
RINOK(LookInStream_SeekTo(stream, (UInt64)*startOffset));
if (progress && ICompressProgress_Progress(progress, (UInt64)(endOffset - *startOffset), (UInt64)(Int64)-1) != SZ_OK)
return SZ_ERROR_PROGRESS;
}
return SZ_OK;