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Red Hat Bugzilla – Attachment 437860 Details for
Bug 622779
zlib has fence-post error in adler32_combine
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[patch]
patch for adler32_combine bug
zlib-1.2.3.4-adler32_combine-algorithm-fix-backport.patch (text/plain), 735 bytes, created by
Martin Poole
on 2010-08-10 12:07:35 UTC
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Description:
patch for adler32_combine bug
Filename:
MIME Type:
Creator:
Martin Poole
Created:
2010-08-10 12:07:35 UTC
Size:
735 bytes
patch
obsolete
>diff -rup zlib-1.2.3-3/adler32.c zlib-1.2.3/adler32.c >--- zlib-1.2.3-3/adler32.c 2004-12-21 17:52:08.000000000 +0100 >+++ zlib-1.2.3/adler32.c 2010-07-28 17:25:17.000000000 +0200 >@@ -141,9 +141,9 @@ uLong ZEXPORT adler32_combine(adler1, ad > MOD(sum2); > sum1 += (adler2 & 0xffff) + BASE - 1; > sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem; >- if (sum1 > BASE) sum1 -= BASE; >- if (sum1 > BASE) sum1 -= BASE; >- if (sum2 > (BASE << 1)) sum2 -= (BASE << 1); >- if (sum2 > BASE) sum2 -= BASE; >+ if (sum1 >= BASE) sum1 -= BASE; >+ if (sum1 >= BASE) sum1 -= BASE; >+ if (sum2 >= (BASE << 1)) sum2 -= (BASE << 1); >+ if (sum2 >= BASE) sum2 -= BASE; > return sum1 | (sum2 << 16); > }
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bug 622779
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