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author	Ulf Hermann <ulf.hermann@qt.io>
	Thu, 20 Apr 2017 14:04:54 +0000 (16:04 +0200)
committer	Mark Wielaard <mark@klomp.org>
	Thu, 27 Apr 2017 14:38:48 +0000 (16:38 +0200)
commit	eb956e080ff54dd219231f70f727b6b10eecfe42
tree	b44fc953aac29eb701e744bfe62289d231584586	tree
parent	28149ca8173a49c6c4fcc3a3eb919bb2420517be	commit \| diff

Protect against integer overflow on shnum

If shnum is 0, the many "shnum - 1" would result in an overflow. Check it
for 0, and only subtract once, rather than on every usage.

Signed-off-by: Ulf Hermann <ulf.hermann@qt.io>

libdwfl/ChangeLog		diff \| blob \| blame \| history
libdwfl/dwfl_module_getdwarf.c		diff \| blob \| blame \| history
src/ChangeLog		diff \| blob \| blame \| history
src/unstrip.c		diff \| blob \| blame \| history

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