mirror of
git://slackware.nl/current.git
synced 2025-01-04 23:02:35 +01:00
83 lines
2.3 KiB
Diff
83 lines
2.3 KiB
Diff
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--- a/IlmImf/ImfDwaCompressor.cpp
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+++ b/IlmImf/ImfDwaCompressor.cpp
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@@ -2377,7 +2377,12 @@ DwaCompressor::uncompress
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const char *dataPtr = inPtr + NUM_SIZES_SINGLE * sizeof(Int64);
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- if (inSize < headerSize + compressedSize)
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+ /* Both the sum and individual sizes are checked in case of overflow. */
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+ if (inSize < (headerSize + compressedSize) ||
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+ inSize < unknownCompressedSize ||
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+ inSize < acCompressedSize ||
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+ inSize < dcCompressedSize ||
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+ inSize < rleCompressedSize)
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{
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throw Iex::InputExc("Error uncompressing DWA data"
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"(truncated file).");
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diff --git a/IlmImf/ImfHuf.cpp b/IlmImf/ImfHuf.cpp
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index a375d05..97909a5 100644
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--- a/IlmImf/ImfHuf.cpp
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+++ b/IlmImf/ImfHuf.cpp
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@@ -822,7 +822,7 @@ hufEncode // return: output size (in bits)
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}
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-#define getCode(po, rlc, c, lc, in, out, oe) \
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+#define getCode(po, rlc, c, lc, in, out, ob, oe)\
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{ \
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if (po == rlc) \
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{ \
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@@ -835,6 +835,8 @@ hufEncode // return: output size (in bits)
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\
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if (out + cs > oe) \
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tooMuchData(); \
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+ else if (out - 1 < ob) \
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+ notEnoughData(); \
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\
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unsigned short s = out[-1]; \
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\
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@@ -895,7 +897,7 @@ hufDecode
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//
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lc -= pl.len;
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- getCode (pl.lit, rlc, c, lc, in, out, oe);
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+ getCode (pl.lit, rlc, c, lc, in, out, outb, oe);
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}
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else
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{
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@@ -925,7 +927,7 @@ hufDecode
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//
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lc -= l;
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- getCode (pl.p[j], rlc, c, lc, in, out, oe);
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+ getCode (pl.p[j], rlc, c, lc, in, out, outb, oe);
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break;
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}
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}
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@@ -952,7 +954,7 @@ hufDecode
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if (pl.len)
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{
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lc -= pl.len;
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- getCode (pl.lit, rlc, c, lc, in, out, oe);
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+ getCode (pl.lit, rlc, c, lc, in, out, outb, oe);
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}
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else
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{
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diff --git a/IlmImf/ImfPizCompressor.cpp b/IlmImf/ImfPizCompressor.cpp
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index 46c6fba..8b3ee38 100644
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--- a/IlmImf/ImfPizCompressor.cpp
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+++ b/IlmImf/ImfPizCompressor.cpp
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@@ -573,6 +573,12 @@ PizCompressor::uncompress (const char *inPtr,
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int length;
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Xdr::read <CharPtrIO> (inPtr, length);
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+ if (length > inSize)
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+ {
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+ throw InputExc ("Error in header for PIZ-compressed data "
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+ "(invalid array length).");
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+ }
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+
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hufUncompress (inPtr, length, _tmpBuffer, tmpBufferEnd - _tmpBuffer);
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//
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