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Change-Id: I1fd4bf85cd709de1c14ed2895d045018f79bc61f
Reviewed-on: https://pdfium-review.googlesource.com/26950
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
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BUG=chromium:811733
Change-Id: Idce50b8ea4ca06fc77d5b3931557cd1d6fe48bd5
Reviewed-on: https://pdfium-review.googlesource.com/26710
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Currently the BMP decompressor doesn't verify the
returned data length was the amount requested. This
means we may end up with part of our structure
uninitialized if we didn't copy in enough data.
This CL verifies the length of data copied is the
size we require.
BUG=chromium:811853
Change-Id: I20e0e9b3ff1176a620fcb38c3c7e585848b7e428
Reviewed-on: https://pdfium-review.googlesource.com/26850
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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This changes the return value from uint32_t to FX_FILESIZE, which is
the type the methods is uses return. The existing code does an
unguarded static cast, so something like -1 could cause a very large
value being returned.
This change has a cascading impact up to the top of the progressive
codec, which now has to handle negative values gracefully.
Change-Id: I813fb71e932dd5da014dbaed0dbf3bb28f8d4e9f
Reviewed-on: https://pdfium-review.googlesource.com/26450
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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This also adds a Seek method to CFX_MemoryStream
BUG=pdfium:1007
Change-Id: I2c7e1d3b6d8aff36e302014cb2e8ffc0f23ef7c4
Reviewed-on: https://pdfium-review.googlesource.com/26230
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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When a very large, bogus value, was being passed in for the number of
bytes to read, this could cause an overflow in the check for if there
is data available.
BUG=chromium:809824
Change-Id: I54af6655b61d39275f3ae6fabb27be2bee3fef05
Reviewed-on: https://pdfium-review.googlesource.com/25871
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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BUG=chromium:808336
Change-Id: I84443a00e2ebaf0a1e8590464486ec92bcb0e3b5
Reviewed-on: https://pdfium-review.googlesource.com/25690
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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BUG=chromium:808336
Change-Id: I3201805a374b5403149eca701714ef4369a2e337
Reviewed-on: https://pdfium-review.googlesource.com/25630
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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BMPDecompressor -> CFX_BmpDecompressor
CBmpContext -> CFX_BmpContext
BUG=chromium:808336
Change-Id: If8ef5294171e3619ae1d7c5175ddf23b7673ec78
Reviewed-on: https://pdfium-review.googlesource.com/25611
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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BUG=chromium:808336
Change-Id: Id721787dd77d1bcac6daf6e3c149f79e8d1d9fe4
Reviewed-on: https://pdfium-review.googlesource.com/25610
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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