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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2013-07-20 15:20:46 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2013-07-20 15:20:46 +0200 |
| commit | 5e87e8aebb60bc87d3dd6e07814c7c3b0e8dbbb2 (patch) | |
| tree | 689dfe8b9b6f648f6e33e87914e521dbe771a6f6 | |
| parent | a7ecbed56bb620a0e8cd79372886d0fdfeb362c8 (diff) | |
| download | busybox-5e87e8aebb60bc87d3dd6e07814c7c3b0e8dbbb2.tar.gz | |
unzip: increase PEEK_FROM_END from 16k to 64k
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | archival/unzip.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/archival/unzip.c b/archival/unzip.c index e4c824850..c250d7555 100644 --- a/archival/unzip.c +++ b/archival/unzip.c @@ -163,7 +163,14 @@ enum { zip_fd = 3 }; #if ENABLE_DESKTOP -#define PEEK_FROM_END 16384 +/* Seen in the wild: + * Self-extracting PRO2K3XP_32.exe contains 19078464 byte zip archive, + * where CDE was nearly 48 kbytes before EOF. + * (Surprisingly, it also apparently has *another* CDE structure + * closer to the end, with bogus cdf_offset). + * To make extraction work, bumped PEEK_FROM_END from 16k to 64k. + */ +#define PEEK_FROM_END (64*1024) /* NB: does not preserve file position! */ static uint32_t find_cdf_offset(void) |