mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-26 14:28:15 -05:00
39 lines
1.6 KiB
Diff
39 lines
1.6 KiB
Diff
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Copied from Fedora.
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http://pkgs.fedoraproject.org/cgit/unzip.git/plain/unzip-6.0-overflow-long-fsize.patch?id=d18f821e
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diff --git a/list.c b/list.c
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index f7359c3..4c3d703 100644
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--- a/list.c
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+++ b/list.c
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@@ -97,7 +97,7 @@ int list_files(__G) /* return PK-type error code */
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{
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int do_this_file=FALSE, cfactor, error, error_in_archive=PK_COOL;
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#ifndef WINDLL
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- char sgn, cfactorstr[10];
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+ char sgn, cfactorstr[13];
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int longhdr=(uO.vflag>1);
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#endif
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int date_format;
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@@ -339,7 +339,19 @@ int list_files(__G) /* return PK-type error code */
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G.crec.compression_method == ENHDEFLATED) {
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methbuf[5] = dtype[(G.crec.general_purpose_bit_flag>>1) & 3];
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} else if (methnum >= NUM_METHODS) {
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- sprintf(&methbuf[4], "%03u", G.crec.compression_method);
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+ /* 2013-02-26 SMS.
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+ * http://sourceforge.net/tracker/?func=detail
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+ * &aid=2861648&group_id=118012&atid=679786
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+ * Unexpectedly large compression methods overflow
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+ * &methbuf[]. Use the old, three-digit decimal format
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+ * for values which fit. Otherwise, sacrifice the
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+ * colon, and use four-digit hexadecimal.
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+ */
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+ if (G.crec.compression_method <= 999) {
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+ sprintf( &methbuf[ 4], "%03u", G.crec.compression_method);
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+ } else {
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+ sprintf( &methbuf[ 3], "%04X", G.crec.compression_method);
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+ }
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}
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#if 0 /* GRR/Euro: add this? */
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