Commit Graph

72 Commits

Author SHA1 Message Date
Florian Weimer
765325951a resolv: Implement strict-error stub resolver option (bug 27929)
For now, do not enable this mode by default due to the potential
impact on compatibility with existing deployments.

Reviewed-by: DJ Delorie <dj@redhat.com>
2024-07-24 12:10:37 +02:00
Paul Pluzhnikov
7f0d9e61f4 Fix all the remaining misspellings -- BZ 25337 2023-06-02 01:39:48 +00:00
Florian Weimer
f282cdbe7f resolv: Implement no-aaaa stub resolver option
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2022-06-24 18:18:44 +02:00
Florian Weimer
ea9878ec27 resolv: Move res_query functions into libc
This switches to public symbols without __ prefixes, due to improved
namespace management in glibc.

The script was used with --no-new-version to move the symbols
__res_nquery, __res_nquerydomain, __res_nsearch, __res_query,
__res_querydomain, __res_search, res_query, res_querydomain,
res_search.  The public symbols res_nquery, res_nquerydomain,
res_nsearch, res_ownok, res_query, res_querydomain, res_search
were added with make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:57 +02:00
Florian Weimer
21a497cc58 resolv: Move res_mkquery, res_nmkquery into libc
This switches to public symbols without __ prefixes, due to improved
namespace management in glibc.

The symbols res_mkquery, __res_mkquery, __res_nmkquery were
moved with the script (using --no-new-version).
res_mkquery@@GLIBC_2.34, res_nmkquery@@GLIBC_2.34 were added using
make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:57 +02:00
Florian Weimer
b165c65c35 resolv: Move res_send, res_nsend into libc
Switch to public symbols without __ prefix (due to improved
namespace management).

__res_send, __res_nsend were moved using the script (with
--no-new-version).  res_send@@GLIBC_2.34 and res_nsend@@GLIBC_2.34
were added using make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:45 +02:00
Florian Weimer
2fbe5860d3 resolv: Rename res_comp.c to res-name-checking.c and move into libc
This reflects what the remaining functions in the file do.

The __res_dnok, __res_hnok, __res_mailok, __res_ownok were moved
with the script, using --no-new-version, and turned into compat
symbols.  __libc_res_dnok@@GLIBC_PRIVATE and
__libc_res_hnok@@GLIBC_PRIVATE are added for internal use, to avoid
accidentally binding to compatibility symbols.  The new public
symbols res_dnok, res_hnok, res_mailok, res_ownok were added using
make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
391e02236b resolv: Move dn_skipname to its own file and into libc
And reformat it to GNU style.

dn_skipname is used outside glibc, so do not deprecate it,
and export it as dn_skipname (not __dn_skipname).  Due to internal
users, provide a __libc_dn_skipname alias, and keep __dn_skipname
as a pure compatibility symbol.

__dn_skipname@GLIBC_2.0 was moved using the script, and
dn_skipname@@GLIBC_2.34 was added using make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
fd8a87c0c1 resolv: Move dn_comp to its own file and into libc
And reformat it to GNU style.

dn_comp is used in various programs, so keep it as a non-deprecated
symbol.  Switch to dn_comp (not __dn_comp) for the ABI name.  There
are no internal users, so interposition is not a problem.

The __dn_comp symbol was moved with scripts/move-symbol-to-libc.py
--no-new-version.  dn_comp@@GLIBC_2.34 was added with
make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
640bbdf71c resolv: Move dn_expand to its own file and into libc
And reformat to GNU style.

This switches back to the dn_expand name for the ABI symbol and turns
__dn_expand into a compatibility symbol.  With the improved namespace
management in current glibc, it is no longer necessary to use a
private namespace symbol.  To avoid old code binding to a
GLIBC_PRIVATE symbol by accident, use __libc_dn_expand for the
internal symbol name.

The symbols dn_expand, __dnexpand were moved using
scripts/move-symbol-to-libc.py, followed by an adjustment to make
dn_expand the only GLIBC_2.34 symbol.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
248dbed118 resolv: Deprecate legacy interfaces in libresolv
Debugging interfaces: p_*, fp_*, and sym_* could conceivably be
used to produce debug out, but these functions have not been
updated to parse more resource records, so they are not very useful
today.  Likewise for ns_sprintrr and ns_sprintrrf.  ns_format_ttl and
ns_parse_ttl are related to these.

Internal implementation details: res_isourserver is probably only
useful in the implementation of a stub resolver, and so is
res_nameinquery.

Unclear semantics and bad performance: ns_samedomain, ns_subdomain,
ns_makecanon, ns_samename do textual converions & copies instead of
checking equivalence of the wire format.

inet_neta cannot handle IPv6 addresses.

res_hostalias has been superseded by getaddrinfo with AI_CANONNAME.
hostalias is not thread-safe.

Some functions have int as size arguments instead of size_t, so they
do not follow current coding practices.  However, dn_expand and
b64_ntop are somewhat widely used (to name just two examples), so
deprecating them seems problematic.

Reviewed-by: Carlos O'Donell <carlos@systemhalted.org>
2021-07-19 07:55:42 +02:00
Florian Weimer
446997ff14 resolv: Implement trust-ad option for /etc/resolv.conf [BZ #20358]
This introduces a concept of trusted name servers, for which the
AD bit is passed through to applications.  For untrusted name
servers (the default), the AD bit in responses are cleared, to
provide a safe default.

This approach is very similar to the one suggested by Pavel Šimerda
in <https://bugzilla.redhat.com/show_bug.cgi?id=1164339#c15>.

The DNS test framework in support/ is enhanced with support for
setting the AD bit in responses.

Tested on x86_64-linux-gnu.

Change-Id: Ibfe0f7c73ea221c35979842c5c3b6ed486495ccc
2019-11-27 20:54:37 +01:00
Florian Weimer
333221862e resolv: Remove RES_INSECURE1, RES_INSECURE2
Always perform the associated security checks.
2019-04-08 11:19:38 +02:00
Florian Weimer
3f8b44be0a resolv: Remove support for RES_USE_INET6 and the inet6 option
This functionality was deprecated in glibc 2.25.

This commit only includes the core changes to remove the
functionality.  It does not remove the RES_USE_INET6 handling in the
individual NSS service modules and the res_use_inet6 function.
These changes will happen in future commits.
2019-04-08 10:56:22 +02:00
Joseph Myers
754034c429 Obsolete p_secstodate.
This patch, relative to a tree with
<https://sourceware.org/ml/libc-alpha/2017-11/msg00797.html> (pending
review) applied, obsoletes p_secstodate, making the underlying
function __p_secstodate into a compat symbol not available for new
binaries or ports.  The calls in ns_print.c (part of incomplete
handling of TKEY) are changed to use %lu to print times instead of
trying to pretty-print the times any more.

Tested for x86_64.

	* resolv/res_debug.c (p_secstodate): Condition definition on
	[SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_27)].  Define
	directly as __p_secstodate, and as a compat symbol.  Do not use
	libresolv_hidden_def.
	* resolv/resolv.h (p_secstodate): Remove macro and function
	declaration.
	* resolv/ns_print.c (ns_sprintrrf): Print times with %lu, not
	using p_secstodate.
	* include/resolv.h (__p_secstodate): Do not use
	libresolv_hidden_proto.
	* resolv/Makefile (tests): Move tst-p_secstodate to ....
	(tests-internal): ... here.
	* resolv/tst-p_secstodate.c: Include <shlib-compat.h>.  Condition
	all contents on [TEST_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_27)]
	and declare and use __p_secstodate and use compat_symbol_reference
	in that case.
	[!TEST_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_27)] (do_test): Add
	implementation returning 77.
2017-11-22 22:21:10 +00:00
Florian Weimer
aef16cc8a4 resolv: Automatically reload a changed /etc/resolv.conf file [BZ #984]
This commit enhances the stub resolver to reload the configuration
in the per-thread _res object if the /etc/resolv.conf file has
changed.  The resolver checks whether the application has modified
_res and will not overwrite the _res object in that case.

The struct resolv_context mechanism is used to check the
configuration file only once per name lookup.
2017-07-03 21:06:23 +02:00
Zack Weinberg
500b3a499f Remove __need_list_t and __need_res_state.
These __need macros are only used internally, by nptl/descr.h.
However, including all of resolv.h from descr.h causes build failures
due to resolv.h's dozens of pseudo-struct-field macros, some of which
collide with struct fields in NPTL internal data structures.
Similarly, including all of list.h from descr.h produces an include
cycle, atomic.h -> atomic-machine.h -> tls.h -> descr.h -> list.h ->
atomic.h, and then list.h tries to use atomic.h macros that haven't
been defined yet.  So we do need mini-headers for these.  In the
list.h case I called it include/list_t.h since it isn't going to be
installed.

	* resolv/resolv.h: Remove __need_res_state logic.
	Move definition of res_state and related constants to ...
	* resolv/bits/types/res_state.h: ...this new file.
	* resolv/Makefile: Install bits/types/res_state.h.
	* include/bits/types/res_state.h: New wrapper.
	* include/list.h: Remove __need_list_t logic.
	Move definition of list_t to ...
	* include/list_t.h: ...this new file.

	* nptl/descr.h: Include list_t.h and bits/types/res_state.h
	instead of list.h and resolv.h.
2017-05-20 19:01:46 -04:00
Florian Weimer
a7ff1da823 resolv: Remove internal and unused definitions from <resolv.h>
The RES_F_* constants are only used with the private _res._flags
member.  RES_EXHAUSTIVE is unused.  The removed function
declarations refer to functions not actually exported by glibc,
so they are unusable by applications.
2017-04-13 10:52:42 +02:00
Florian Weimer
bbe989ee87 resolv: Deprecate RES_BLAST 2016-12-31 19:08:39 +01:00
Florian Weimer
b76e065991 resolv: Deprecate the "inet6" option and RES_USE_INET6 [BZ #19582] 2016-12-31 18:55:14 +01:00
Florian Weimer
5140d036f9 resolv: Remove RES_USEBSTRING and its implementation [BZ #20629]
In ns_name_ntop, the NS_CMPRSFLGS check is no longer needed because
labellen (called earlier) already rejects everything which is not
a plain label (compression references and extended label types).
2016-10-07 17:41:59 +02:00
Florian Weimer
7ec47a85d8 resolv: Remove RES_NOIP6DOTINT and its implementation 2016-10-07 17:41:59 +02:00
Florian Weimer
bfbd1de159 resolv: Deprecate unimplemented flags
RES_AAONLY, RES_PRIMARY, RES_NOCHECKNAME, RES_KEEPTSIG result
in compile-time warnings.  Some of these flags are still used in
applications.
2016-10-07 17:41:45 +02:00
Zack Weinberg
11160cb76f Installed-header hygiene (BZ#20366): obsolete BSD u_* types.
The types u_char, u_short, u_int, u_long, ushort, uint, ulong, u_int8_t,
u_int16_t, u_int32_t, u_int64_t, quad_t, and u_quad_t are BSDisms that
have never been standardized.  While glibc should continue to *provide*
these types for compatibility's sake, its public headers should not
use them.

The meat of this change was mechanically generated by the following
shell command:

    perl -pi~ -e '
        s/\b(__)?u_char\b/unsigned char/g;
        s/\b(__)?u_?short\b/unsigned short/g;
        s/\b(__)?u_?int\b/unsigned int/g;
        s/\b(__)?u_?long\b/unsigned long/g;
        s/\b(__)?u_int8_t\b/uint8_t/g;
        s/\b(__)?u_int16_t\b/uint16_t/g;
        s/\b(__)?u_int32_t\b/uint32_t/g;
        s/\b(__)?u_int64_t\b/uint64_t/g;
        s/\b(__)?u_quad_t\b/uint64_t/g;
        s/\b(__)?quad_t\b/uint64_t/g;
    ' $(grep -lE -e '\<((__)?(quad_t|u(short|int|long|_(char|short|int([0-9]+_t)?|long|quad_t))))\>' \
        $(grep -LE '\<(_(SYS|BITS)_TYPES_H|rpc/(rpc|rpc_msg|types|xdr)\.h)\>' \
          $(find . \( -false $(sed 's/^/-o -name /' all-installed-headers) \
                   \) -printf '%P\n' | sort -u)))

where 'all-installed-headers' was a list of the basenames of all installed
header files, manually extracted from the Makefiles.  Non-installed
wrapper headers in include/ are also adjusted, for consistency.
I then manually fixed up indentation and line-wrapping.

sys/types.h and bits/types.h are excluded because they must continue
to define the u_* types (under __USE_MISC) for compatibility with
applications.  They do not use these types themselves.

All headers that (transitively) include rpc/types.h are also excluded,
for three reasons.  First, the u_* types are defined by rpc/types.h,
unconditionally (not just under __USE_MISC) so they are logically part
of the SunRPC API.  Second, many of those headers appear to be
machine-generated.  Third, it's my understanding that we are getting
rid of as much of SunRPC as possible in the near future.

(The one file under sunrpc/ that's touched, sunrpc/rpc/rpc_des.h, does
*not* include rpc/types.h.  This may itself be a bug.)

After changing from u_intNN_t to uintNN_t, a number of headers now
need to include stdint.h to pick up those types.  It might be more
hygenic, namespace-wise, to use __uintNN_t instead, but none of these
headers are bound by ISO or POSIX to do so, and it's unlikely that
anyone using them will be bothered.  (The two files that were using
__-prefixed versions of the u_types, sysdeps/mach/hurd/net/route.h and
sysdeps/unix/sysv/linux/net/route.h, both already also contained uses of
the unprefixed versions.)

Some of these files directly included features.h and/or sys/cdefs.h,
which I removed, as the style generally seems to be to let sys/types.h
do that for us.  (This does not change the set of definitions exposed
by any header; sys/types.h unconditionally includes both features.h
and sys/cdefs.h.)

One file included asm/types.h unnecessarily.

	* bits/in.h, gmon/sys/gmon.h, inet/netinet/igmp.h
	* inet/protocols/routed.h, inet/protocols/talkd.h
	* inet/protocols/timed.h, io/fts.h, nptl_db/thread_db.h
	* resolv/arpa/nameser.h, resolv/resolv.h, sunrpc/rpc/rpc_des.h
	* sysdeps/generic/netinet/if_ether.h
	* sysdeps/generic/netinet/in_systm.h
	* sysdeps/generic/netinet/ip.h, sysdeps/generic/netinet/tcp.h
	* sysdeps/gnu/netinet/ip_icmp.h, sysdeps/gnu/netinet/tcp.h
	* sysdeps/gnu/netinet/udp.h, sysdeps/mach/hurd/net/ethernet.h
	* sysdeps/mach/hurd/net/if_arp.h
	* sysdeps/mach/hurd/net/if_ppp.h
	* sysdeps/mach/hurd/net/route.h, sysdeps/mach/sys/reboot.h
	* sysdeps/unix/sysv/linux/bits/in.h
	* sysdeps/unix/sysv/linux/net/ethernet.h
	* sysdeps/unix/sysv/linux/net/if_arp.h
	* sysdeps/unix/sysv/linux/net/if_ppp.h
	* sysdeps/unix/sysv/linux/net/if_shaper.h
	* sysdeps/unix/sysv/linux/net/route.h
	* sysdeps/unix/sysv/linux/netinet/if_ether.h
	* sysdeps/unix/sysv/linux/netinet/if_fddi.h
	* sysdeps/unix/sysv/linux/netinet/if_tr.h
	* sysdeps/unix/sysv/linux/netipx/ipx.h
	* sysdeps/unix/sysv/linux/sys/acct.h
	* include/arpa/nameser.h, include/resolv.h:
	Change all uses of u_char to unsigned char,
	u_short and ushort to unsigned short, u_int and uint to unsigned int,
	u_long and ulong to unsigned long, u_int8_t to uint8_t,
        u_int16_t to uint16_t, u_int32_t to uint32_t, quad_t to int64_t,
	and u_int64_t and u_quad_t to uint64_t.

	* mach/sys/reboot.h: Remove two casts of integer literals
	to the types they already have.

	* bits/in.h: Correct error in description of IP_MULTICAST_LOOP.
	* sysdeps/unix/sysv/linux/bits/in.h: Likewise.
	* sysdeps/unix/sysv/linux/netinet/if_ether.h: Change a comment
	from referring to 'unsigned char' to 'uint8_t' for consistency with
	the macro definition below.

	* gmon/sys/gmon.h, inet/netinet/igmp.h, inet/protocols/talkd.h
	* io/fts.h, resolv/arpa/nameser.h, resolv/resolv.h
	* sunrpc/rpc/rpc_des.h, sysdeps/generic/netinet/ip.h
	* sysdeps/gnu/netinet/tcp.h, sysdeps/gnu/netinet/udp.h
	* sysdeps/mach/hurd/net/if_ppp.h, sysdeps/unix/sysv/linux/net/if_ppp.h
	* sysdeps/unix/sysv/linux/sys/acct.h
	* include/arpa/nameser.h, include/resolv.h:
	Fix indentation disrupted by mechanical edits.

	* inet/protocols/talkd.h, resolv/arpa/nameser.h
	* sysdeps/generic/netinet/in_systm.h
	* sysdeps/gnu/netinet/ip_icmp.h, sysdeps/gnu/netinet/tcp.h
	* sysdeps/gnu/netinet/udp.h
	* sysdeps/unix/sysv/linux/net/ethernet.h
	* sysdeps/unix/sysv/linux/net/if_arp.h
	* sysdeps/unix/sysv/linux/net/if_ppp.h
	* sysdeps/unix/sysv/linux/net/if_shaper.h
	* sysdeps/unix/sysv/linux/netinet/if_fddi.h
	* sysdeps/unix/sysv/linux/netinet/if_tr.h
	* sysdeps/unix/sysv/linux/netipx/ipx.h
	* sysdeps/unix/sysv/linux/sys/acct.h
	Include stdint.h for uintNN_t definitions.
	Don't include sys/cdefs.h, features.h, or asm/types.h directly.
2016-09-23 08:43:56 -04:00
Florian Weimer
6815a33d53 resolv: Remove unsupported hook functions from the API [BZ #20016] 2016-09-21 16:30:27 +02:00
Florian Weimer
e5a0ec981c resolv: Remove __BIND_NOSTATIC conditionals
The macro is never defined.
2016-04-28 13:56:38 +02:00
Andreas Jaeger
f1a24198af BZ#15085: Fix comments/strings for RES_NOCHECKNAME
[BZ #15085]
	* resolv/resolv.h (RES_NOCHECKNAME): Mark as unimplemented.
	* resolv/res_debug.c (p_option): Mark RES_NOCHECKNAME as
	unimplemented.
2013-04-29 21:11:13 +02:00
Ulrich Drepper
f87dfb1f11 Backport BIND code to query name as TLD. 2011-05-07 13:05:19 -04:00
Adam Tkac
2d0671cbbd Define and implement RES_USE_DNSSEC option in resolver. 2009-07-27 07:33:48 -07:00
Ulrich Drepper
44d20bca52 Implement second fallback mode for DNS requests.
There is some more shardware/software out there which has problems
if two DNS requests are sent using the same tuple

  (source addr, source port, dest addr, dest port)

This can range from firewalls to load balancers.  Some of the vendors
already fixed it in response to this problem.  Still, we need a way
to make glibc work with broken environments.  The single-request-reopen
flag can be used or we fall back automatically to this mode.
2009-06-26 03:47:47 -07:00
Ulrich Drepper
ae06191038 * resolv/resolv.h (RES_SNGLKUP): Define.
* resolv/res_init.c (res_setoptions): Recognize single-request option.
	* resolv/res_send.c (send_dg): If we sent two requests at once and
	only get one reply before timeout switch to mode where we send the
	second request only after the first answer has been received.
2009-04-07 02:00:27 +00:00
Jakub Jelinek
d82a27f841 * stdlib/monetary.h: Uglify function parameter names.
* sunrpc/rpc/pmap_clnt.h: Likewise. 
* sunrpc/rpc/svc.h: Likewise. 
* sunrpc/rpc/xdr.h: Likewise. 
* sunrpc/rpc/clnt.h: Likewise. 
* resolv/netdb.h: Likewise. 
* resolv/arpa/nameser.h: Likewise. 
* resolv/resolv.h: Likewise. 
* argp/argp.h: Likewise. 
* locale/langinfo.h: Likewise. 
* io/sys/stat.h: Likewise. 
* posix/spawn.h: Likewise. 
* nis/rpcsvc/nislib.h: Likewise. 
* malloc/obstack.h: Likewise. 
* sysdeps/ia64/bits/link.h: Likewise. 
* sysdeps/i386/bits/link.h: Likewise. 
* sysdeps/s390/bits/link.h: Likewise. 
* sysdeps/powerpc/bits/link.h: Likewise. 
* sysdeps/x86_64/bits/link.h: Likewise. 
* sysdeps/sparc/bits/link.h: Likewise. 
* sysdeps/sh/bits/link.h: Likewise. 
* sysdeps/unix/sysv/linux/i386/sys/io.h: Likewise. 
* sysdeps/unix/sysv/linux/x86_64/sys/io.h: Likewise. 
* sysdeps/unix/sysv/linux/sparc/sys/eventfd.h: Likewise. 
* sysdeps/unix/sysv/linux/sys/eventfd.h: Likewise.
2009-02-16  Jakub Jelinek  <jakub@redhat.com>

	* stdlib/monetary.h: Uglify function parameter names.
	* sunrpc/rpc/pmap_clnt.h: Likewise.
	* sunrpc/rpc/svc.h: Likewise.
	* sunrpc/rpc/xdr.h: Likewise.
	* sunrpc/rpc/clnt.h: Likewise.
	* resolv/netdb.h: Likewise.
	* resolv/arpa/nameser.h: Likewise.
	* resolv/resolv.h: Likewise.
	* argp/argp.h: Likewise.
	* locale/langinfo.h: Likewise.
	* io/sys/stat.h: Likewise.
	* posix/spawn.h: Likewise.
	* nis/rpcsvc/nislib.h: Likewise.
	* malloc/obstack.h: Likewise.
	* sysdeps/ia64/bits/link.h: Likewise.
	* sysdeps/i386/bits/link.h: Likewise.
	* sysdeps/s390/bits/link.h: Likewise.
	* sysdeps/powerpc/bits/link.h: Likewise.
	* sysdeps/x86_64/bits/link.h: Likewise.
	* sysdeps/sparc/bits/link.h: Likewise.
	* sysdeps/sh/bits/link.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/sys/io.h: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sys/io.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sys/eventfd.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/eventfd.h: Likewise.
2009-02-16 21:00:15 +00:00
Ulrich Drepper
ae1ad3aebb [BZ #4647]
Tomas Janousek  <tjanouse@redhat.com>
            Ulrich Drepper  <drepper@redhat.com>

	[BZ #4647]
	* resolv/res_send.c (send_dg): Remove socket_pf.  Use ipv6_unavail
	member in __res_state, only convaddr4to6 if nssocks[ns] is a PF_INET6
	socket.
	* resolv/resolv.h (__res_state): Add ipv6_unavail member.  Make
	unused member a bitmap.
	* resolv/res_init.c (__res_vinit): Reset ipv6_unavail if IPv6
	servers are configured.

2007-06-18  Jakub Jelinek  <jakub@redhat.com>
2007-06-18 22:22:57 +00:00
Ulrich Drepper
2bbb7d5b3c * resolv/res_init.c (res_setoptions): Recognize edns0 option.
* resolv/res_mkquery.c: Define __res_nopt.
	* resolv/res_query.c (__libc_res_nquery): If RES_USE_EDNS0 is set
	try adding EDNS0 record.
	* resolv/res_send.c (send_dg): If request failed with FORMERR and
	EDNS0 record was send make sure we don't try it again.
	* resolv/resolv.h: Define RES_F_EDNS0ERR and RES_USE_EDNS0.
	* include/resolv.h: Declare __res_nopt.
2007-02-09 23:46:29 +00:00
Ulrich Drepper
79937577d1 Update.
2004-09-13  Ulrich Drepper  <drepper@redhat.com>

	* misc/sys/cdefs.h: Restore old definition of __P.
	* csu/munch.awk: Remove uses of __P and __PMT.
	* gmon/gmon.c: Likewise.
	* hesiod/hesiod.h: Likewise.
	* include/stdio.h: Likewise.
	* io/fts.c: Likewise.
	* libio/genops.c: Likewise.
	* libio/libioP.h: Likewise.
	* libio/fileops.c: Likewise.
	* libio/iolibio.h: Likewise.
	* libio/libio.h: Likewise.
	* libio/memstream.c: Likewise.
	* libio/oldfileops.c: Likewise.
	* libio/oldstdfiles.c: Likewise.
	* libio/iopopen.c: Likewise.
	* libio/vsnprintf.c: Likewise.
	* libio/vswprintf.c: Likewise.
	* libio/wgenops.c: Likewise.
	* libio/oldiopopen.c: Likewise.
	* locale/programs/xmalloc.c: Likewise.
	* locale/programs/xstrdup.c: Likewise.
	* malloc/mtrace.c: Likewise.
	* misc/getttyent.c: Likewise.
	* misc/getusershell.c: Likewise.
	* nis/rpcsvc/ypupd.h: Likewise.
	* posix/fnmatch.h: Likewise.
	* posix/glob.h: Likewise.
	* resolv/arpa/nameser.h: Likewise.
	* resolv/gethnamaddr.c: Likewise.
	* resolv/resolv.h: Likewise.
	* resolv/inet_net_ntop.c: Likewise.
	* resolv/inet_net_pton.c: Likewise.
	* resolv/res_init.c: Likewise.
	* resolv/nss_dns/dns-network.c: Likewise.
	* stdio-common/vfprintf.c: Likewise.
	* stdio-common/reg-printf.c: Likewise.
	* sysdeps/generic/chflags.c: Likewise.
	* sysdeps/generic/fchflags.c: Likewise.
	* sysdeps/generic/glob.c: Likewise.
	* sysdeps/generic/printf_fphex.c: Likewise.
	* sysdeps/generic/memcmp.c: Likewise.
	* sysdeps/generic/memcopy.h: Likewise.
	* sysdeps/generic/morecore.c: Likewise.
	* sysdeps/generic/sstk.c: Likewise.
	* sysdeps/posix/sigvec.c: Likewise.
	* sysdeps/posix/ttyname_r.c: Likewise.
	* sysdeps/standalone/arm/bits/errno.h: Likewise.
	* sysdeps/standalone/standalone.h: Likewise.
	* sysdeps/standalone/i386/force_cpu386/brdinit.c: Likewise.
	* sysdeps/standalone/i386/force_cpu386/_exit.c: Likewise.
	* sysdeps/unix/arm/start.c: Likewise.
	* sysdeps/unix/bsd/sigaction.c: Likewise.
	* sysdeps/unix/bsd/sun/m68k/sigtramp.c: Likewise.
	* sysdeps/unix/bsd/sun/sparc/sigtramp.c: Likewise.
	* sysdeps/unix/bsd/sun/sunos4/wait4.c: Likewise.
	* sysdeps/unix/bsd/ultrix4/mips/sigvec.c: Likewise.
	* sysdeps/unix/bsd/ultrix4/sysconf.c: Likewise.
	* sysdeps/unix/sparc/start.c: Likewise.
	* sysdeps/unix/sysv/getdents.c: Likewise.
	* sysdeps/unix/sysv/irix4/fpathconf.c: Likewise.
	* sysdeps/unix/sysv/irix4/getgroups.c: Likewise.
	* sysdeps/unix/sysv/irix4/getpriority.c: Likewise.
	* sysdeps/unix/sysv/irix4/getrusage.c: Likewise.
	* sysdeps/unix/sysv/irix4/pathconf.c: Likewise.
	* sysdeps/unix/sysv/irix4/setgroups.c: Likewise.
	* sysdeps/unix/sysv/irix4/sigtramp.c: Likewise.
	* sysdeps/unix/sysv/irix4/start.c: Likewise.
	* sysdeps/unix/sysv/irix4/sysconf.c: Likewise.
	* sysdeps/unix/sysv/sco3.2.4/__setpgid.c: Likewise.
	* sysdeps/unix/sysv/sco3.2.4/getgroups.c: Likewise.
	* sysdeps/unix/sysv/sysv4/__getpgid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/__setpgid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/getpgid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/setpgid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/sethostname.c: Likewise.
	* sysdeps/unix/sysv/sysv4/setsid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/sysconf.c: Likewise.
	* sysdeps/unix/sysv/sysv4/waitpid.c: Likewise.
	* sysdeps/unix/sysv/sysv4/solaris2/getdents.c: Likewise.
	* time/tzset.c: Likewise.
	* time/strftime_l.c: Likewise.
	* time/strptime_l.c: Likewise.
	* crypt/md5.h: Likewise.
2004-09-14 04:41:35 +00:00
Ulrich Drepper
0acb7b8370 Update.
* resolv/resolv.h (RES_DEFAULT): Add RES_NOIP6DOTINT.
	* resolv/res_init.c (res_setoptions): Recognize ip6-dotint option.
	Reset RES_NOIP6DOTINT flag in this case..
2004-08-18 05:29:19 +00:00
Ulrich Drepper
87bb6b6c6b Update.
2004-08-04  Jakub Jelinek  <jakub@redhat.com>

	* hesiod/hesiod.c (__hesiod_res_get): Use calloc instead of malloc +
	memset.
	(__hesiod_res_set): Free nsaddrs.

	* include/resolv.h (__res_maybe_init): Add prototype.
	* resolv/resolv.h (struct __res_state): Add _u._ext.initstamp field.
	* resolv/Versions (libc): Add __res_maybe_init@@GLIBC_PRIVATE.
	* resolv/res_libc.c (__res_initstamp, lock): New variables.
	(res_init): Increase __res_initstamp.
	(__res_maybe_init): New function.
	* resolv/res_init.c (__res_vinit): Initialize _u._ext.initstamp.
	* hesiod/hesiod.c (__hesiod_res_get): Use __res_maybe_init instead
	of RES_INIT check and {res_ninit,__res_ninit,res_init} call.
	* sysdeps/posix/getaddrinfo.c (gaih_inet): Likewise.
	* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r,
	_nss_dns_gethostbyaddr_r): Likewise.
	* resolv/nss_dns/dns-network.c (_nss_dns_getnetbyname_r,
	_nss_dns_getnetbyaddr_r): Likewise.
	* resolv/gethnamaddr.c (gethostbyname, gethostbyname2,
	gethostbyaddr): Likewise.
	* resolv/res_data.c (fp_nquery, res_mkquery, res_mkupdate,
	res_isourserver, res_sendsigned, res_update, res_search,
	res_querydomain): Likewise.
	* nss/getXXbyYY_r.c (INTERNAL (REENTRANT_NAME)): Likewise.
	* nss/digits_dots.c (__nss_hostname_digits_dots): Likewise.
	* nss/getnssent_r.c (__nss_setent, __nss_endent, __nss_getent_r):
	Likewise.

	* sysdeps/posix/getaddrinfo.c (gaih_inet): Set ai_family for
	V4-mapped IPv6 addresses and req->ai_family==AF_INET.
	Reported by A. Guru <a.guru@sympatico.ca>.

	* po/pl.po: Likewise.
	characters than necessary.
2004-08-05 23:32:24 +00:00
Ulrich Drepper
340ef046a6 Update.
2004-06-27  Ulrich Drepper  <drepper@redhat.com>

	* resolv/resolv.h (RES_NOIP6DOTINT): Define.
	* resolv/res_init.c (res_setoptions): Handle no-ip6-dotint option.
	* resolv/gethnamaddr.c (gethostbyaddr): Don't lookup with .ip6.int
	if RES_NOIP6DOTINT flag is set.
	* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyaddr_r): Likewise.
2004-06-28 01:30:07 +00:00
Ulrich Drepper
ee778b56b7 Update.
2004-01-15  Ulrich Drepper  <drepper@redhat.com>

	* resolv/resolv.h: Add RES_USEBSTRING.
	* resolv/res_debug.c (p_option): Add handling for RES_USE_INET6,
	RES_ROTATE, RES_NOCHECKNAME, and RES_USEBSTRING.
	* resolv/res_init.c (res_setioptions): Recognize ip6-bytestring.
	* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyaddr_r): Only perform
	bytestring IPv6 lookup with RES_USEBSTRING option is selected.
	Otherwise use the two nibble formats.
2004-01-15 09:46:50 +00:00
Roland McGrath
c2e131128b * sysdeps/unix/sysv/linux/readv.c (do_readv): Use prototype defn.
* sysdeps/unix/sysv/linux/wait.c: Don't include <nptl/pthreadP.h> or
	<tls.h> here, no need for it.
	* sysdeps/unix/sysv/linux/waitpid.c: Likewise.

	* sysdeps/unix/sysv/linux/i386/fcntl.c (do_fcntl): Take ARG as void *
	parameter, not varargs parameter.

	* sysdeps/generic/sysdep-cancel.h (LIBC_CANCEL_RESET): Evaluate the
	argument so it's not an unused variable.

	* resolv/resolv.h (__p_key_syms, __p_cert_syms, __p_class_syms,
	__p_type_syms, __p_rcode_syms): Remove decls, never really intended
	for users.

	* resolv/Versions (libresolv: GLIBC_2.3.2): New set, add __p_rcode.

2002-12-15  Art Haas  <ahaas@airmail.net>

	* nscd/connections.c: C99 initializer conversion.
	* nscd/grpcache.c: Same.
	* nscd/hstcache.c: Same.
	* nscd/pwdcache.c: Same.
2002-12-15 23:23:24 +00:00
Roland McGrath
64ca3f329b * resolv/resolv.h: Include <sys/types.h> for u_long even in
the [__need_res_state] case.
	Reported by Bruno Haible <bruno@clisp.org>.
2002-09-08 20:37:42 +00:00
Roland McGrath
c2afe83352 * sysdeps/pthread/bits/libc-tsd.h: Include <tls.h>.
[USE_TLS && HAVE___THREAD]: Just include the sysdeps/generic file,
	which does the right thing when __thread support is available.
	* descr.h (struct _pthread_descr_struct) [USE_TLS && HAVE___THREAD]:
	Omit `p_libc_specific', `p_errnop', `p_errno', `p_h_errnop',
	`p_h_errno', `p_resp', and `p_res' members.
	* pthread.c (__pthread_initialize_minimal) [USE_TLS && HAVE___THREAD]:
	Don't initialize `p_errnop' and `p_h_errnop' members.
	(__pthread_reset_main_thread): Likewise.
	(__pthread_initialize_manager): Likewise.
	* manager.c (__pthread_manager, pthread_handle_create): Likewise.
	* pthread.c (pthread_initialize) [USE_TLS && HAVE___THREAD]:
	Don't initialize `p_resp' member.
	(__pthread_reset_main_thread): Likewise.
	* manager.c (pthread_handle_create): Likewise.
	* specific.c (libc_internal_tsd_set, libc_internal_tsd_get):
	Conditionalize these on [!(USE_TLS && HAVE___THREAD)].
	* errno.c [USE_TLS && HAVE___THREAD]
	(__h_errno_location, __res_state): Don't define these at all.

	* sysdeps/i386/tls.h (INSTALL_DTV): Add parens around arguments!
	(INSTALL_NEW_DTV, GET_DTV): Likewise.
	* sysdeps/sh/tls.h (INSTALL_DTV, INSTALL_NEW_DTV, GET_DTV): Likewise.

	* weaks.c: Don't include <errno.h> here.

2002-08-01  Roland McGrath  <roland@redhat.com>

	* sysdeps/i386/tls.h (TLS_DO_MODIFY_LDT): New macro, broken out of
	TLS_INIT_TP.
	(TLS_DO_SET_THREAD_AREA): New macro, uses thread_set_area syscall.
	(TLS_SETUP_GS_SEGMENT): New macro, try one or the other or both.
	(TLS_INIT_TP): Use that.
2002-08-02 03:32:24 +00:00
Ulrich Drepper
b64e156626 Update.
2002-05-21  Jakub Jelinek  <jakub@redhat.com>

	* resolv/resolv.h (struct __res_state): Remove unused nstimes.
	Add nsmap.
	* resolv/res_init.c (__res_vinit): Initialize nsmap array.
	Remove nstimes setting.
	(res_nclose): Check all MAXNS nameservers with non-NULL nsaddrs.
	* resolv/res_send.c (res_nsend): Don't close unconditionally if
	there is mix of IPv6 and IPv4 nameservers.
	Use nsmap array to find free slots and preserve nameserver ordering.
	Fix RES_ROTATE.
2002-05-31 07:54:02 +00:00
Ulrich Drepper
535b764df5 Update.
* elf/rtld.c (_dl_start_final): Allocate TLS and initialize
	thread-pointer as soon as possible.
	* sysdeps/generic/ldsodefs.h: Include <tls.h>.  Define first TLS
	elements in rtld_global.
	* sysdeps/generic/tls.h: New file.
	* elf/Makefile (distribute): Add tls.h.
	* sysdeps/i386/dl-machine.h (elf_machine_rel): Add support for TLS
	relocations.  Not complete yet.

	* resolv/resolv.h: Allow user to define __need_res_state and only
	define __res_start structure then.
	* include/resolv.h: Only declare functions if _RESOLV_H_ is defined.
2002-02-05 00:57:29 +00:00
Ulrich Drepper
03fbfeb508 Update.
2001-01-03  Jakub Jelinek  <jakub@redhat.com>

	* resolv/resolv.h (struct __res_state): Add nsinit field.
	* resolv/res_send.c (res_nsend): Use it instead of nscount.
	* resolv/res_init.c (__res_vinit): Initialize it.
	(res_nclose): Clear it instead of nscount.

	* malloc/mtrace.pl: Fix matching of addresses.
	Patch by Aharon Robbins <arnold@skeeve.com>.
2001-01-05 02:36:27 +00:00
Ulrich Drepper
835bf8e016 Update.
2000-08-01  Mark Kettenis  <kettenis@gnu.org>

	* sysdeps/unix/sysv/linux/i386/sys/elf.h (elf_greg_t, ELF_NGREG,
	elf_gregset_t, elf_fpregset_t, elf_fpxregset_t): Moved to
	sysdeps/unix/sysv/linux/i386/sys/procfs.h.
	Remove the junk that's only relevant in the Linux kernel itself.
	Add a warning saying that this file is now obsolete, and include
	<sys/procfs.h>.
	* sysdeps/unix/sysv/linux/i386/sys/procfs.h (elf_greg_t,
	ELF_NGREG, elf_gregset_t, elf_fpregset_t, elf_fpxregset_t): Moved
	here from sysdeps/unix/sysv/linux/i386/sys/elf.h.  Don't include
	<signal.h>, <sys/ucontext.h> and <sys/elf.h>.  Remove parts of
	`struct elf_prstatus' that are #ifdef'ed out.  Improve comments
	and add the notice that the file is primarily there for GDB.
	* sysdeps/unix/sysv/linux/i386/sys/user.h: Fix comment.

2000-08-09  Jakub Jelinek  <jakub@redhat.com>

	* time/tzfile.c (__tzfile_compute): __tzstring zones
	from zone_names.

2000-08-09  Jakub Jelinek  <jakub@redhat.com>

	* resolv/resolv.h (__res_state): Surround prototype with
	__BEGIN_DECLS/__END_DECLS.
	* sysdeps/unix/sysv/linux/m68k/chown.c: Include kernel-features.h.

2000-08-04  Jes Sorensen  <jes@linuxcare.com>

	* sysdeps/unix/sysv/linux/ia64/bits/resource.h (__rlimit_resource):
	Make independant of asm/resource.h from the Linux kernel.

2000-08-06  Bruno Haible  <haible@clisp.cons.org>

	* iconv/gconv_conf.c (__gconv_read_conf): Don't call realpath.

2000-08-06  Bruno Haible  <haible@clisp.cons.org>

	* intl/Makefile (CPPFLAGS): Remove $(i18ndir) from LOCALE_ALIAS_PATH.
	* locale/Makefile (locale-CPPFLAGS): Likewise.

2000-08-09  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/i386/fpu/libm-test-ulps: Increase several error values
	for AMD processors.

2000-08-03  Jakub Jelinek  <jakub@redhat.com>

	* misc/Versions (mincore): Export at GLIBC_2.2.

2000-08-03  Bruno Haible  <haible@clisp.cons.org>

	* intl/libintl.h (gettext, dgettext, dcgettext): Add back __THROW.
2000-08-10 04:40:02 +00:00
Ulrich Drepper
497b8ef43f Update.
2000-07-28  Philip Blundell  <philb@gnu.org>

	* math/test-fpucw.c: Ignore reserved bits in control word.

2000-07-28  Philip Blundell  <philb@gnu.org>

	* sysdeps/unix/sysv/linux/arm/sysdep.h (PSEUDO_RET): New macro.
	(ret): Redefine to PSEUDO_RET.
	(PSEUDO): Remove jump to syscall_error.

2000-07-29  Mark Kettenis  <kettenis@gnu.org>

	* resolv/README: Add some information about using the resolver in
	multi-threaded code and with C++.  Spelling fixes.

2000-07-29  Mark Kettenis  <kettenis@gnu.org>

	* resolv/resolv.h (struct __sockaddr_in): Remove.
	(struct __res_state) [!_LIBC]: Remove reference to __sockaddr_in.

	* sysdeps/powerpc/backtrace.c (struct layout): Make pointers
	__unbounded.
2000-07-29 18:08:15 +00:00
Ulrich Drepper
438e82396b Update.
2000-07-26  Ulrich Drepper  <drepper@redhat.com>

	* resolv/res_init.c: Add support for nameserver communication with
	IPv6.
	* resolv/res_send.c: Likewise.
	* resolv/resolv.h (struct __res_state): Store IPv6 address, not IPv4
	in nsaddrs field.
	Patch by <venaas@nvg.ntnu.no>.
2000-07-26 08:05:34 +00:00
Ulrich Drepper
3452aba811 Update.
2000-07-25  Mark Kettenis  <kettenis@gnu.org>

	* nss/nss_files/files-netgrp.c (strip_whitespace): New function.
	(_nss_netgroup_parseline): Use strip_whitespace to strip off any
	leading and trailing spaces from host, user and domain name.

2000-07-25  Jes Sorensen  <jes@linuxcare.com>

	* csu/defs.awk: Add support for need_endp.

2000-07-25  Mark Kettenis  <kettenis@gnu.org>

	* resolv/resolv.h: Remove __P from res_send_qhook and
	res_send_rhook typedefs.

2000-07-25  Bruno Haible  <haible@clisp.cons.org>

	* intl/tst-translit.c (main): Unset OUTPUT_CHARSET.
2000-07-25 22:19:16 +00:00
Ulrich Drepper
2f54c82dac Update.
* elf/Makefile (tests): Add nodlopen.  Add rules to generate nodlopen.
	* include/dlfcn.h: Define __RTLD_DLOPEN.
	* elf/dl-load.c (_dl_map_object_from_fd): If DF_1_NOOPEN is set
	and this is a dlopen() call, do not load the binary.
	* dlfcn/dlopen.c: Add __RTLD_DLOPEN to mode passed down to _dl_open.
	* dlfcn/dlopenold.c: Likewise.
	* configure.in: Add test for -z nodelete option.
	* config.make.in: Define have-z-nodelete with libc_cv_z_nodelete.

2000-07-20  Mark Kettenis  <kettenis@gnu.org>

	Make Hesiod NSS module thread-safe.

	* hesiod/README.hesiod: Update.

	* hesiod/Versions [GLIBC_2.2]: Add _nss_hesiod_getservbyport_r,
	_nss_hesiod_setprotoent, _nss_hesiod_endprotoent,
	_nss_hesiod_getprotobyname_r, and _nss_hesiod_getprotobynumber_r.
	* hesiod/Makefile (libnss_hesiod-routines): Add hesiod-init and
	hesiod-proto.
	* hesiod/nss_hesiod/hesiod-init.c: New file.
	* hesiod/nss_hesiod/hesiod-pwd.c: Rewritten for thread-safeness.
	* hesiod/nss_hesiod/hesiod-grp.c: Likewise.
	* hesiod/nss_hesiod/nss_hesiod.h: New file.
	* hesiod/nss_hesiod/hesiod-service.c
	(_nss_hesiod_getservbyport_r): New function.  Provide support for
	looking up services by port number.
	* hesiod/nss_hesiod/hesiod-proto.c: New file.

	* hesiod/hesiod.c: Update from BIND 8.2.3-T5B.
	* hesiod/hesiod.h: Likewise.
	* hesiod/hesiod_p.h: Likewise.

2000-07-20  Mark Kettenis  <kettenis@gnu.org>

	Fix problems with `struct __res_state' getting too big.
	* resolv/resolv.h (struct __sockaddr_in): New definition.
	(struct __res_state): Use __sockaddr_in instead of sockaddr_in in
	the private parts of the structure to save some space.
	* resolv/res_send.c (res_nsend): Cast &EXT(statp).nsaddrs[ns] to
	(struct sockaddr_in *) in call to sock_eq.
	Use memcpy to copy statp->nsaddr_list[ns] to &EXT(statp).nsaddrs[ns].

2000-07-20  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/mach/hurd/dl-sysdep.c: Likewise.
2000-07-21 04:12:25 +00:00