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From 5e2efcd633a4a1fb95a129a75508e7d769e767be Mon Sep 17 00:00:00 2001
From: Mark Adler <madler@alumni.caltech.edu>
Date: Sun, 9 Feb 2020 20:36:28 -0800
Subject: [PATCH] Fix bug in UZbunzip2() that incorrectly updated G.incnt.
The update assumed a full buffer, which is not always full. This
could result in a false overlapped element detection when a small
bzip2-compressed file was unzipped. This commit remedies that.
---
extract.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/extract.c b/extract.c
index d9866f9..0cb7bfc 100644
--- a/extract.c
+++ b/extract.c
@@ -3010,7 +3010,7 @@ __GDEF
#endif
G.inptr = (uch *)bstrm.next_in;
- G.incnt = (G.inbuf + INBUFSIZ) - G.inptr; /* reset for other routines */
+ G.incnt -= G.inptr - G.inbuf; /* reset for other routines */
uzbunzip_cleanup_exit:
err = BZ2_bzDecompressEnd(&bstrm);
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