dirmngr: Fix HKP host selection code.
* dirmngr/server.c (cmd_keyserver): Add option --resolve and change --print-hosttable to --hosttable. * dirmngr/ks-action.c (ks_printf_help): New. (ks_action_resolve): New. * dirmngr/ks-engine-hkp.c (select_random_host): Fix selection. (ks_hkp_print_hosttable): Print to assuan stream. (map_host): Remove debug code. Add arg FORCE_SELECT. Return numeric IP addr if it can't be resolved. (make_host_part): Add arg FORCE_SELECT; change callers to pass false. (ks_hkp_resolve): New.
The new options for the keyserver command are useful for debugging.
For example:
$ tools/gpg-connect-agent -S /usr/local/var/run/gnupg/S.dirmngr \ 'keyserver hkp://keys.gnupg.net' \ 'keyserver http://http-keys.gnupg.net' \ 'keyserver --resolve --hosttable' /bye
yields:
OK OK S # http://astrath.net:80 S # http://2001:41d0:1:e673::1:11371 S # hosttable (idx, ipv4, ipv6, dead, name): S # 0 http-keys.gnupg.net S # . --> 10 11 12 1 5 8 7 4* 2 9 6 3 S # 1 4 37.250.168.245.bredband.tre.se S # 2 4 6 keys.exosphere.de S # 3 4 6 poseidon.muc.drweb-av.de S # 4 4 astrath.net S # 5 4 79.143.214.216 S # 6 4 openpgp.andrew.kvalhe.im S # 7 4 app.aaiedu.hr S # 8 4 6 alita.karotte.org S # 9 4 6 keyserver.bau5net.com S # 10 4 194.94.127.122 S # 11 6 2001:4d88:1ffc:477::7 S # 12 6 2a00:1280:8000:2:1:8:0:1 S # 13 keys.gnupg.net S # . --> 23 28* 30 17 22 8 7 27 25 14 21 20 19 29 [...] S # 14 4 hufu.ki.iif.hu S # 15 4 pks.ms.mff.cuni.cz S # 16 4 pgpkeys.co.uk S # 17 4 80-239-156-219.customer.teliacarrier.com S # 18 4 srv01.secure-u.de S # 19 4 mallos.xs4all.nl S # 20 4 kronecker.scientia.net S # 21 4 keyserver.ut.mephi.ru S # 22 4 89-68-150-88.dynamic.chello.pl S # 23 6 2001:1608:21:6:84:200:66:125 S # 24 6 sks.es.net S # 25 6 gstueve-1-pt.tunnel.tserv13.ash1.ipv6.he.net S # 26 6 sks.mrball.net S # 27 6 gozer.rediris.es S # 28 6 2001:41d0:1:e673::1 S # 29 6 oteiza.siccegge.de S # 30 6 2403:4200:401:10::13 S # 31 6 statler.serviz.fr OK