package: glibc I don't know whether this is still relevant or not, as I know Debian has switched back to the original glibc, which does not contain this bug, but...
A patch to Debian's glibc, introduced here: https://lists.debian.org/debian-glibc/2006/06/msg00154.html contains a bug, which breaks the functionality of res_init(). res_init() is supposed to initalize the _res struct, and then allow for modifications to the _res struct by the user, before resolving something using res_query(). The introduction of the 'last_mtime' stat struct was used to determine whether or not the _res struct had to be re-initalized, as the last modification time of /etc/resolv.conf had changed. However, res_query() uses __res_maybe_init() to determine whether or not to reset _res, but res_init() does not set statbuf. So, calling res_init() effectively does nothing, since all the changes will be overwritten by the first call to res_query(), because res_query() runs __res_maybe_init(). Ubuntu report here, for reference: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1432378/comments/4 Thanks! (Apologies if this has done through twice. I haven't used Debian's bug tracking for awhile.) -- -- Joshua Rogers <https://internot.info/>
signature.asc
Description: OpenPGP digital signature
