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Florian Weimer 5c6e674735 sunrpc: Always obtain AF_INET addresses from NSS [BZ #20964]
The new __libc_rpc_gethostbyname function calls gethostbyname2_r
with an AF_INET argument and is therefore not affected by the
RES_USE_INET6 flag.

Validated with the following test program, with and without
RES_OPTIONS=inet6, against a NFS server.  (Link with -lrpcsvc.)

#include <rpc/clnt.h>
#include <rpcsvc/mount.h>
#include <stdio.h>
#include <string.h>

static void
usage (char **argv)
{
  printf ("usage:\n"
          "  %1$s HOST getrpcport\n"
          "  %1$s HOST callrpc\n"
          "  %1$s HOST clnt_create\n",
          argv[0]);
}

static void
dump_exports (struct exportnode *exports)
{
  while (exports != NULL)
    {
      printf ("%s\n", exports->ex_dir);
      exports = exports->ex_next;
    }
}

int
main (int argc, char **argv)
{
  if (argc != 3)
    {
      usage (argv);
      return 1;
    }

  const char *host = argv[1];
  const char *command = argv[2];

  if (strcmp (command, "getrpcport") == 0)
    {
      int port = getrpcport (host, MOUNTPROG, MOUNTVERS, IPPROTO_UDP);
      printf ("getrpcport: %d\n", port);
    }
  else if (strcmp (command, "callrpc") == 0)
    {
      struct exportnode *exports = NULL;
      int ret = callrpc (host, MOUNTPROG, MOUNTVERS, MOUNTPROC_EXPORT,
                         (xdrproc_t) xdr_void, NULL,
                         (xdrproc_t) xdr_exports, (char *)&exports);
      if (ret != 0)
        {
          clnt_perrno (ret);
          puts ("");
          return 1;
        }
      dump_exports (exports);
    }
  else if (strcmp (command, "clnt_create") == 0)
    {
      CLIENT *client = clnt_create
        (host, MOUNTPROG, MOUNTVERS, "udp");
      if (client == NULL)
        {
          printf ("error: clnt_create failed\n");
          return 1;
        }
      struct exportnode *exports = NULL;
      int ret = CLNT_CALL (client, MOUNTPROC_EXPORT,
                           (xdrproc_t) xdr_void, NULL,
                           (xdrproc_t) xdr_exports, (char *)&exports,
                           ((struct timeval) {15, 0}));
      if (ret != 0)
        {
          clnt_perrno (ret);
          puts ("");
          return 1;
        }
      dump_exports (exports);
    }
  else
    {
      usage (argv);
      return 1;
    }

  return 0;
}
2016-12-27 16:44:15 +01:00
argp Installed-header hygiene (BZ#20366): Simple self-contained fixes. 2016-09-23 08:43:55 -04:00
assert assert.h: allow gcc to detect assert(a = 1) errors 2016-12-18 01:30:51 -08:00
benchtests Add configure check for python program 2016-12-22 23:07:52 +05:30
bits Refactor long double information into bits/long-double.h. 2016-12-14 18:27:56 +00:00
catgets Fix building glibc master with NDEBUG and --with-cpu. 2016-03-15 23:23:24 -04:00
conform Enable linknamespace testing for libdl and libcrypt. 2016-11-16 22:47:57 +00:00
crypt New string function explicit_bzero (from OpenBSD). 2016-12-16 16:21:54 -05:00
csu Disable stack protector in early static initialization [BZ #7065] 2016-12-26 10:08:45 +01:00
ctype Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
debug PLT avoidance for __stack_chk_fail [BZ #7065] 2016-12-26 10:11:05 +01:00
dirent support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
dlfcn support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
elf Link a non-libc-using test with -fno-stack-protector [BZ #7065] 2016-12-26 10:11:05 +01:00
gmon Installed-header hygiene (BZ#20366): obsolete BSD u_* types. 2016-09-23 08:43:56 -04:00
gnulib Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
grp Don't install the internal header grp-merge.h 2016-07-18 09:33:21 -03:00
gshadow Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
hesiod hesiod: Avoid heap overflow in get_txt_records [BZ #20031] 2016-05-02 16:04:32 +02:00
hurd hurd: fix using hurd.h in C++ programs 2016-12-04 23:18:32 +01:00
iconv gconv.h: fix build with GCC 7 2016-11-06 21:33:10 +01:00
iconvdata gconv: Adjust GBK to support the Euro sign 2016-11-29 18:35:21 +01:00
include sunrpc: Always obtain AF_INET addresses from NSS [BZ #20964] 2016-12-27 16:44:15 +01:00
inet inet: Make IN6_IS_ADDR_UNSPECIFIED etc. usable with POSIX [BZ #16421] 2016-12-09 11:27:44 +01:00
intl hurd: fix pathconf visibility 2016-09-18 23:45:12 +02:00
io support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
libidn Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
libio support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
locale Bug 20729: Include libc-internal.h where required. 2016-10-31 16:46:57 -04:00
localedata localedata: GBK: add mapping for 0x80->Euro sign [BZ #20864] 2016-11-26 17:20:22 -05:00
login Drop explicit stack-protection of pieces of the system [BZ #7065] 2016-12-26 10:11:05 +01:00
mach Fix old-style function definition 2016-09-20 23:10:51 +02:00
malloc support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
manual Configure support for --enable-stack-protector [BZ #7065] 2016-12-26 10:08:19 +01:00
math Add roundeven, roundevenf, roundevenl. 2016-12-21 01:48:27 +00:00
mathvec Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
misc Disable stack protector in early static initialization [BZ #7065] 2016-12-26 10:08:45 +01:00
nis Fix nss_nisplus build with mainline GCC (bug 20978). 2016-12-21 23:44:01 +00:00
nptl Initialize the stack guard earlier when linking statically [BZ #7065] 2016-12-26 10:08:34 +01:00
nptl_db Remove cached PID/TID in clone 2016-11-24 19:38:51 -02:00
nscd Drop explicit stack-protection of pieces of the system [BZ #7065] 2016-12-26 10:11:05 +01:00
nss Add deferred cancellation regression test for getpwuid_r. 2016-12-23 13:39:23 -05:00
po Update PO files. 2016-08-04 11:41:27 -04:00
posix support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
pwd Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
resolv Drop explicit stack-protection of pieces of the system [BZ #7065] 2016-12-26 10:11:05 +01:00
resource Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
rt support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
scripts scripts/test_printers_common.py: Log GDB error message 2016-12-23 15:13:28 +01:00
setjmp Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
shadow Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
signal Do not stack-protect sigreturn stubs [BZ #7065] 2016-12-26 10:11:06 +01:00
socket Installed-header hygiene (BZ#20366): conditionally defined structures. 2016-09-23 08:43:56 -04:00
soft-fp [soft-fp] Add support for various half-precision conversion routines. 2016-09-21 21:02:54 +00:00
stdio-common Fix crypt snprintf namespace (bug 20829). 2016-11-16 22:46:48 +00:00
stdlib Refactor long double information into bits/long-double.h. 2016-12-14 18:27:56 +00:00
streams Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
string Fix x86_64 memchr for large input sizes 2016-12-27 10:50:41 -02:00
sunrpc sunrpc: Always obtain AF_INET addresses from NSS [BZ #20964] 2016-12-27 16:44:15 +01:00
support Fix assertion failure on test timeout 2016-12-15 17:25:12 +01:00
sysdeps Fix x86_64 memchr for large input sizes 2016-12-27 10:50:41 -02:00
sysvipc Installed-header hygiene (BZ#20366): time.h types. 2016-09-23 08:43:56 -04:00
termios Declare tcgetsid for XPG4 (bug 20055). 2016-05-11 18:05:37 +00:00
time support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
timezone Remove mention of checktab.awk in timezone/README. 2016-03-14 14:11:51 -04:00
wcsmbs Add tst-wcstod-round 2016-08-19 11:17:07 -05:00
wctype Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
.gitattributes Assume __NR_openat is always defined 2016-03-23 23:35:08 +01:00
.gitignore Add *.pyc to .gitignore 2015-05-18 15:26:26 +05:30
abi-tags Add arm-nacl port. 2015-04-17 09:02:19 -07:00
aclocal.m4 Work even with compilers which enable -fstack-protector by default [BZ #7065] 2016-12-26 10:10:58 +01:00
BUGS
ChangeLog sunrpc: Always obtain AF_INET addresses from NSS [BZ #20964] 2016-12-27 16:44:15 +01:00
ChangeLog.1
ChangeLog.2
ChangeLog.3
ChangeLog.4
ChangeLog.5
ChangeLog.6 Revert "ChangeLogs: convert to utf-8" 2016-02-12 16:35:27 -05:00
ChangeLog.7 Revert "ChangeLogs: convert to utf-8" 2016-02-12 16:35:27 -05:00
ChangeLog.8 ChangeLog: change Winblowz to Windows 2016-08-10 00:49:28 +08:00
ChangeLog.9
ChangeLog.10 Revert "ChangeLogs: convert to utf-8" 2016-02-12 16:35:27 -05:00
ChangeLog.11 ChangeLog: change Winblowz to Windows 2016-08-10 00:49:28 +08:00
ChangeLog.12 Revert "ChangeLogs: convert to utf-8" 2016-02-12 16:35:27 -05:00
ChangeLog.13
ChangeLog.14 Revert "ChangeLogs: convert to utf-8" 2016-02-12 16:35:27 -05:00
ChangeLog.15
ChangeLog.16
ChangeLog.17
ChangeLog.old-ports
ChangeLog.old-ports-aarch64
ChangeLog.old-ports-aix
ChangeLog.old-ports-alpha
ChangeLog.old-ports-am33
ChangeLog.old-ports-arm
ChangeLog.old-ports-cris
ChangeLog.old-ports-hppa
ChangeLog.old-ports-ia64
ChangeLog.old-ports-linux-generic
ChangeLog.old-ports-m68k
ChangeLog.old-ports-microblaze
ChangeLog.old-ports-mips
ChangeLog.old-ports-powerpc
ChangeLog.old-ports-tile
config.h.in Do not stack-protect ifunc resolvers [BZ #7065] 2016-12-26 10:08:41 +01:00
config.make.in Disable stack protector in early static initialization [BZ #7065] 2016-12-26 10:08:45 +01:00
configure Work even with compilers which enable -fstack-protector by default [BZ #7065] 2016-12-26 10:10:58 +01:00
configure.ac Work even with compilers which enable -fstack-protector by default [BZ #7065] 2016-12-26 10:10:58 +01:00
CONFORMANCE
COPYING
COPYING.LIB
cppflags-iterator.mk
extra-lib.mk support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
extra-modules.mk
gen-locales.mk Split locale generation snippet into a separate file 2015-05-13 13:05:28 +05:30
INSTALL Configure support for --enable-stack-protector [BZ #7065] 2016-12-26 10:08:19 +01:00
libc-abis
LICENSES
Makeconfig Enable -fstack-protector=* when requested by configure [BZ #7065] 2016-12-26 10:11:06 +01:00
Makefile Installed header hygiene (BZ#20366): Test of installed headers. 2016-09-23 08:43:56 -04:00
Makefile.in New make target to only build benchmark binaries 2016-04-20 10:23:28 +05:30
Makerules Install libm.a as linker script (bug 20539). 2016-12-08 17:25:59 +03:00
NAMESPACE
NEWS Enable -fstack-protector=* when requested by configure [BZ #7065] 2016-12-26 10:11:06 +01:00
o-iterator.mk
README Require Linux 3.2 except on x86 / x86_64, 3.2 headers everywhere. 2016-02-24 17:15:12 +00:00
README.pretty-printers Fix failing pretty printer tests when CPPFLAGS has optimizations. 2016-12-23 13:46:56 -05:00
Rules Add configure check for python program 2016-12-22 23:07:52 +05:30
shlib-versions This is update for configure, build and install of vector math library. 2015-05-14 18:07:06 +03:00
test-skeleton.c support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
version.h Open development for 2.25. 2016-08-01 23:00:21 -04:00
WUR-REPORT

This directory contains the sources of the GNU C Library.
See the file "version.h" for what release version you have.

The GNU C Library is the standard system C library for all GNU systems,
and is an important part of what makes up a GNU system.  It provides the
system API for all programs written in C and C-compatible languages such
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In GNU/Linux systems, the C library works with the Linux kernel to
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In GNU/Hurd systems, it works with a microkernel and Hurd servers.

The GNU C Library implements much of the POSIX.1 functionality in the
GNU/Hurd system, using configurations i[4567]86-*-gnu.  The current
GNU/Hurd support requires out-of-tree patches that will eventually be
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When working with Linux kernels, this version of the GNU C Library
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Also note that the shared version of the libgcc_s library must be
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