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From: Mark Adler <madler@alumni.caltech.edu>
Subject: Fix bug in undefer_input() that misplaced the input state.
Origin: https://github.com/madler/unzip/commit/41beb477c5744bc396fa1162ee0c14218ec12213
Bug-Debian: https://bugs.debian.org/931433
X-Debian-version: 6.0-24
Fix bug in undefer_input() that misplaced the input state.
--- a/fileio.c
+++ b/fileio.c
@@ -532,8 +532,10 @@
* This condition was checked when G.incnt_leftover was set > 0 in
* defer_leftover_input(), and it is NOT allowed to touch G.csize
* before calling undefer_input() when (G.incnt_leftover > 0)
- * (single exception: see read_byte()'s "G.csize <= 0" handling) !!
+ * (single exception: see readbyte()'s "G.csize <= 0" handling) !!
*/
+ if (G.csize < 0L)
+ G.csize = 0L;
G.incnt = G.incnt_leftover + (int)G.csize;
G.inptr = G.inptr_leftover - (int)G.csize;
G.incnt_leftover = 0;
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