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0fef7ffac114befc94ab5fa794a1754442dcd531
semi-libc/src/network
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Rich Felker 0fef7ffac1 fix handling of dns response codes 
rcode of 3 (NxDomain) was treated as a hard EAI_NONAME failure, but it
should instead return 0 (no results) so the caller can continue
searching. this will be important for adding search domain support.
the top-level caller will automatically return EAI_NONAME if there are
zero results at the end.

also, the case where rcode is 0 (success) but there are no results was
not handled. this happens when the domain exists but there are no A or
AAAA records for it. in this case a hard EAI_NONAME should be imposed
to inhibit further search, since the name was defined and just does
not have any address associated with it. previously a misleading hard
failure of EAI_FAIL was reported.
2016-01-28 19:37:35 -05:00
..
accept4.c
add fallback emulation for accept4 on old kernels
2014-02-21 22:25:26 -05:00
accept.c
use restrict everywhere it's required by c99 and/or posix 2008
2012-09-06 22:44:55 -04:00
bind.c
cleanup socketcall syscall interface to ease porting to sane(r) archs
2011-02-15 04:40:40 -05:00
connect.c
overhaul pthread cancellation
2011-04-17 11:43:03 -04:00
dn_comp.c
implement dn_comp RFC 1035 domain name compression
2014-06-06 20:44:54 +02:00
dn_expand.c
fix dn_expand empty name handling and offsets to 0
2014-09-04 20:13:10 -04:00
dn_skipname.c
implement dn_skipname (legacy resolver function)
2013-04-04 22:36:30 -04:00
dns_parse.c
fix some validation checks in dns response parsing code
2014-06-03 01:43:29 -04:00
ent.c
remove some dummy "ent" function aliases that duplicated real ones
2014-06-04 04:39:34 -04:00
ether.c
add stubs for additional legacy ether.h functions
2013-07-01 13:50:02 -04:00
freeaddrinfo.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
gai_strerror.c
add support for LC_TIME and LC_MESSAGES translations
2014-07-26 05:36:25 -04:00
getaddrinfo.c
make getaddrinfo return error if both host and service name are null
2015-09-25 01:03:36 +00:00
gethostbyaddr_r.c
fix gethostby*_r result pointer value on error
2014-06-20 09:17:57 -04:00
gethostbyaddr.c
include cleanups: remove unused headers and add feature test macros
2013-12-12 05:09:18 +00:00
gethostbyname2_r.c
fix gethostby*_r result pointer value on error
2014-06-20 09:17:57 -04:00
gethostbyname2.c
include cleanups: remove unused headers and add feature test macros
2013-12-12 05:09:18 +00:00
gethostbyname_r.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
gethostbyname.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
getifaddrs.c
properly handle point-to-point interfaces in getifaddrs()
2015-11-30 14:57:25 -05:00
getnameinfo.c
getnameinfo: make size check not fail for bigger sizes
2015-10-26 20:00:03 -04:00
getpeername.c
use restrict everywhere it's required by c99 and/or posix 2008
2012-09-06 22:44:55 -04:00
getservbyname_r.c
make getaddrinfo support SOCK_RAW and other socket types
2015-02-07 14:01:34 -05:00
getservbyname.c
improve getservbyname_r using new resolver backend
2014-06-01 00:45:04 -04:00
getservbyport_r.c
make getservby*_r return error code rather than -1 (and using errno)
2012-07-22 18:49:49 -04:00
getservbyport.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
getsockname.c
use restrict everywhere it's required by c99 and/or posix 2008
2012-09-06 22:44:55 -04:00
getsockopt.c
use restrict everywhere it's required by c99 and/or posix 2008
2012-09-06 22:44:55 -04:00
h_errno.c
fix misplaced semicolon in preprocessor directive (#undef h_errno)
2012-05-16 20:14:30 -04:00
herror.c
implement legacy function herror
2013-12-20 11:56:16 -05:00
hstrerror.c
add support for LC_TIME and LC_MESSAGES translations
2014-07-26 05:36:25 -04:00
htonl.c
optimize ntohl etc. in terms of bswap functions
2011-04-12 13:13:27 -04:00
htons.c
optimize ntohl etc. in terms of bswap functions
2011-04-12 13:13:27 -04:00
if_freenameindex.c
implement if_nameindex and if_freenameindex
2011-08-03 12:13:13 -04:00
if_indextoname.c
fix missing SOCK_CLOEXEC in various functions that use sockets internally
2013-07-09 00:40:17 -04:00
if_nameindex.c
reimplement if_nameindex and getifaddrs using netlink
2014-07-29 20:57:31 -04:00
if_nametoindex.c
fix if_nametoindex return value when socket open fails
2016-01-17 17:33:49 -05:00
in6addr_any.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
in6addr_loopback.c
initial check-in, version 0.5.0
2011-02-12 00:22:29 -05:00
inet_addr.c
remove cruft from old resolver and numeric ip parsing
2014-06-02 05:00:48 -04:00
inet_aton.c
remove cruft from old resolver and numeric ip parsing
2014-06-02 05:00:48 -04:00
inet_legacy.c
remove cruft from old resolver and numeric ip parsing
2014-06-02 05:00:48 -04:00
inet_ntoa.c
split inet_addr and inet_ntoa back into their own files
2013-10-21 22:05:29 -04:00
inet_ntop.c
include cleanups: remove unused headers and add feature test macros
2013-12-12 05:09:18 +00:00
inet_pton.c
fix internal buffer overrun in inet_pton
2015-03-23 09:44:18 -04:00
listen.c
cleanup socketcall syscall interface to ease porting to sane(r) archs
2011-02-15 04:40:40 -05:00
lookup_ipliteral.c
avoid attempting to lookup IP literals as hostnames
2015-09-25 01:18:42 +00:00
lookup_name.c
fix handling of dns response codes
2016-01-28 19:37:35 -05:00
lookup_serv.c
safely handle failure to open hosts, services, resolv.conf files
2015-10-26 18:42:22 -04:00
lookup.h
factor resolv.conf parsing out of res_msend to its own file
2016-01-28 18:39:22 -05:00
netlink.c
reimplement if_nameindex and getifaddrs using netlink
2014-07-29 20:57:31 -04:00
netlink.h
reimplement if_nameindex and getifaddrs using netlink
2014-07-29 20:57:31 -04:00
netname.c
"implement" getnetbyaddr and getnetbyname
2011-07-12 02:52:06 -04:00
ns_parse.c
fix negated return value of ns_skiprr, breakage in related functions
2015-07-08 02:46:45 +00:00
ntohl.c
optimize ntohl etc. in terms of bswap functions
2011-04-12 13:13:27 -04:00
ntohs.c
optimize ntohl etc. in terms of bswap functions
2011-04-12 13:13:27 -04:00
proto.c
add missing protocols to protoent lookup functions
2016-01-06 14:31:32 -05:00
recv.c
include cleanups: remove unused headers and add feature test macros
2013-12-12 05:09:18 +00:00
recvfrom.c
use restrict everywhere it's required by c99 and/or posix 2008
2012-09-06 22:44:55 -04:00
recvmmsg.c
implement sendmmsg and recvmmsg
2014-06-19 23:01:15 -04:00
recvmsg.c
overhaul pthread cancellation
2011-04-17 11:43:03 -04:00
res_init.c
implement new dns backend, res_send and other legacy resolver functions
2014-06-02 02:13:57 -04:00
res_mkquery.c
accept trailing . and empty domain names
2014-06-06 20:41:15 +02:00
res_msend.c
factor resolv.conf parsing out of res_msend to its own file
2016-01-28 18:39:22 -05:00
res_query.c
implement new dns backend, res_send and other legacy resolver functions
2014-06-02 02:13:57 -04:00
res_querydomain.c
accept trailing . and empty domain names
2014-06-06 20:41:15 +02:00
res_send.c
implement new dns backend, res_send and other legacy resolver functions
2014-06-02 02:13:57 -04:00
res_state.c
add _res (__res_state()) dummy
2011-04-06 15:47:26 -04:00
resolvconf.c
fix logic for matching search/domain keywords in resolv.conf
2016-01-28 19:20:13 -05:00
send.c
include cleanups: remove unused headers and add feature test macros
2013-12-12 05:09:18 +00:00
sendmmsg.c
fix sendmmsg emulation return value for zero-length vector
2014-06-20 02:13:38 -04:00
sendmsg.c
workaround another sendmsg kernel bug on 64-bit machines
2012-07-12 21:37:54 -04:00
sendto.c
overhaul pthread cancellation
2011-04-17 11:43:03 -04:00
serv.c
include cleanups: remove unused headers and add feature test macros
2013-12-12 05:09:18 +00:00
setsockopt.c
cleanup socketcall syscall interface to ease porting to sane(r) archs
2011-02-15 04:40:40 -05:00
shutdown.c
cleanup socketcall syscall interface to ease porting to sane(r) archs
2011-02-15 04:40:40 -05:00
sockatmark.c
cleanup socketcall syscall interface to ease porting to sane(r) archs
2011-02-15 04:40:40 -05:00
socket.c
optimize SOCK_CLOEXEC fallback for socket function
2014-06-06 15:30:28 -04:00
socketpair.c
add SOCK_CLOEXEC fallback for socketpair on old kernels
2014-06-06 15:29:00 -04:00