From: Rich Felker <dalias@aerifal.cx>
Date: Wed, 10 Jul 2013 18:38:20 +0000 (-0400)
Subject: fix invalid library phdr pointers passed to callback from dl_iterate_phdr
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;ds=sidebyside;h=30763fd01bef85f30e79baa30173674c007690cc;hp=30763fd01bef85f30e79baa30173674c007690cc;p=musl

fix invalid library phdr pointers passed to callback from dl_iterate_phdr

map_library was saving pointers to an automatic-storage buffer rather
than pointers into the mapping. this should be a fairly simple fix,
but the patch here is slightly complicated by two issues:

1. supporting gratuitously obfuscated ELF files where the program
headers are not right at the beginning of the file.

2. cleaning up the map_library function so that data isn't clobbered
by the time we need it.
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