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24 lines
856 B
Diff
24 lines
856 B
Diff
From: Mark Adler <madler@alumni.caltech.edu>
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Subject: Fix bug in UZinflate() that incorrectly updated G.incnt.
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Origin: https://github.com/madler/unzip/commit/5c572555cf5d80309a07c30cf7a54b2501493720
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X-Debian-version: 6.0-26
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Fix bug in UZinflate() that incorrectly updated G.incnt.
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The update assumed a full buffer, which is not always full. This
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could result in a false overlapped element detection when a small
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deflate-compressed file was unzipped using an old zlib. This
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commit remedies that.
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--- a/inflate.c
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+++ b/inflate.c
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@@ -700,7 +700,7 @@
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G.dstrm.total_out));
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G.inptr = (uch *)G.dstrm.next_in;
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- G.incnt = (G.inbuf + INBUFSIZ) - G.inptr; /* reset for other routines */
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+ G.incnt -= G.inptr - G.inbuf; /* reset for other routines */
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uzinflate_cleanup_exit:
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err = inflateReset(&G.dstrm);
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