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Hi Benda, |
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|
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Sorry for hijacking this thread. Will ROP get a seperate mailing list? I |
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have some questions about ROP on Ubuntu multiarch but asking it in this |
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mailing list is not very appropriate. |
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|
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On Wednesday, October 2, 2013, wrote: |
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|
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> Dear Steven, |
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> |
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> Steven Trogdon <strogdon@×××××.edu <javascript:;>> writes: |
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> |
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> > I've seen this sort of thing on other tries to build glibc in prefix. |
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> > Here the host OS is debian and authentication is via a radius server |
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> > over nfs. All user specific info is not stored in /etc/passwd but in a |
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> > user passwd database. On gentoo, glibc sets the location to search for |
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> > this database as under /var/db and I believe this needs to be |
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> > $EPREFIX/var/db. Here on the host the database is stored under |
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> > /var/lib/misc. One cannot simply copy over the debian-provided |
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> > database to $EPREFIX/var/db and get things to work, at least I don't |
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> > thing so. It is possible to get things to work with a little work, |
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> > once the search path is $EPREFIX/var/db. One has to, from the output |
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> > of "/usr/bin/getent passwd" on the host, generate a database for |
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> > gentoo. And then some minor changes have to be made to |
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> > $EPREFIX/etc/nsswitch.conf so that things are database aware. To see |
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> > the problem, from within $EPREFIX |
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> > |
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> > $ id |
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> > uid=105600 gid=925(math) groups=925(math) |
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> |
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> Regarding this issue, I have a prefixified glibc at |
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> |
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> |
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> http://git.overlays.gentoo.org/gitweb/?p=dev/heroxbd.git;a=blob;f=sys-libs/glibc/glibc-2.17.ebuild |
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> |
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> It looks for $EPREFIX/etc/{passwd,shadow,group,resolv.conf} and |
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> $EPREFIX/var/db. |
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> |
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> Therefore you can have your $EPREFIX/etc/passwd as |
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> |
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> strogdon:x:105600:925:Steven Trogdon:/home/strogdon:/bin/bash |
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> |
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> and $EPREFIX/etc/group as |
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> |
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> math:x:925:strogdon |
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> |
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> "getent passwd > $EPREFIX/etc/passwd" is also a good starting point. |
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> |
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> This should resolve your problem. |
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> |
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> You can copy the ebuild directly, or use the heroxbd overlay to emerge |
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> the hacked glibc by |
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> |
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> $ layman -a heroxbd |
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> |
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> It's an ugly hack though, need to be refined to submit to upstream. |
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> |
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> Benda |
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> |
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> |
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|
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-- |
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yegle |
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http://about.me/yegle |
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