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* A third round of inclusion fixes for _ISOMAC testsuite.Zack Weinberg2017-04-191-0/+1
| | | | | | * posix/tst-mmap-offset.c: Include stdint.h. * resolv/tst-ns_name_compress.c: Include string.h. * resolv/tst-resolv-edns.c: Include resolv.h.
* resolv: Remove EDNS fallback [BZ #21369]Florian Weimer2017-04-131-29/+59
| | | | | | EDNS is disabled by default (so there is interoperability issue), and the fallback code is problematic because it prevents an application from obtaining DNSSEC data after a FORMERR response.
* resolv: Reduce EDNS payload size to 1200 bytes [BZ #21361]Florian Weimer2017-04-131-0/+501
This hardens the stub resolver against fragmentation-based attacks.