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Code Issues Releases Wiki Activity

Look for PackHeader in the right place.

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https://github.com/upx/upx/issues/606
	modified:   p_mach.cpp
This commit is contained in:
John Reiser 2022-10-11 08:08:55 -07:00 committed by Markus F.X.J. Oberhumer
parent 48ad5513ff
commit 72613d06a5
1 changed files with 2 additions and 2 deletions
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4
src/p_mach.cpp
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@ -1724,7 +1724,7 @@ int PackMachBase<T>::canUnpack()
} }
int const small = 32 + sizeof(overlay_offset); int const small = 32 + sizeof(overlay_offset);
unsigned bufsize = 4096; unsigned bufsize = 4096 + sizeof(PackHeader);
if (391 == style) { // PackHeader precedes __LINKEDIT if (391 == style) { // PackHeader precedes __LINKEDIT
fi->seek(offLINK - bufsize, SEEK_SET); fi->seek(offLINK - bufsize, SEEK_SET);
} else } else
@ -1740,7 +1740,7 @@ int PackMachBase<T>::canUnpack()
} }
} else } else
if (395 == style) { if (395 == style) {
fi->seek(offLINK - bufsize - sizeof(PackHeader), SEEK_SET); fi->seek(offLINK - bufsize, SEEK_SET);
} }
MemBuffer buf(bufsize); MemBuffer buf(bufsize);
MemBuffer buf3(bufsize); MemBuffer buf3(bufsize);