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ec999b8e5e
It was noted in <https://sourceware.org/ml/libc-alpha/2012-09/msg00305.html> that the bits/*.h naming scheme should only be used for installed headers. This patch renames bits/libc-lock.h to plain libc-lock.h and bits/libc-lockP.h to plain libc-lockP.h to follow that convention. Note that I don't know where libc-lockP.h comes from for Hurd (the Hurd libc-lock.h includes libc-lockP.h, but the only libc-lockP.h in the glibc source tree is for NPTL) - some unmerged patch? - but I updated the #include in the Hurd libc-lock.h anyway. Tested for x86_64 (testsuite, and that installed stripped shared libraries are unchanged by the patch). [BZ #14912] * bits/libc-lock.h: Move to ... * sysdeps/generic/libc-lock.h: ...here. (_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H. * sysdeps/mach/hurd/bits/libc-lock.h: Move to ... * sysdeps/mach/hurd/libc-lock.h: ...here. (_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H. [_LIBC]: Include <libc-lockP.h> instead of <bits/libc-lockP.h>. * sysdeps/mach/bits/libc-lock.h: Move to ... * sysdeps/mach/libc-lock.h: ...here. (_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H. * sysdeps/nptl/bits/libc-lock.h: Move to ... * sysdeps/nptl/libc-lock.h: ...here. (_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H. * sysdeps/nptl/bits/libc-lockP.h: Move to ... * sysdeps/nptl/libc-lockP.h: ...here. (_BITS_LIBC_LOCKP_H): Rename macro to _LIBC_LOCKP_H. * crypt/crypt_util.c: Include <libc-lock.h> instead of <bits/libc-lock.h>. * dirent/scandir-tail.c: Likewise. * dlfcn/dlerror.c: Likewise. * elf/dl-close.c: Likewise. * elf/dl-iteratephdr.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-open.c: Likewise. * elf/dl-support.c: Likewise. * elf/dl-writev.h: Likewise. * elf/rtld.c: Likewise. * grp/fgetgrent.c: Likewise. * gshadow/fgetsgent.c: Likewise. * gshadow/sgetsgent.c: Likewise. * iconv/gconv_conf.c: Likewise. * iconv/gconv_db.c: Likewise. * iconv/gconv_dl.c: Likewise. * iconv/gconv_int.h: Likewise. * iconv/gconv_trans.c: Likewise. * include/link.h: Likewise. * inet/getnameinfo.c: Likewise. * inet/getnetgrent.c: Likewise. * inet/getnetgrent_r.c: Likewise. * intl/bindtextdom.c: Likewise. * intl/dcigettext.c: Likewise. * intl/finddomain.c: Likewise. * intl/gettextP.h: Likewise. * intl/loadmsgcat.c: Likewise. * intl/localealias.c: Likewise. * intl/textdomain.c: Likewise. * libidn/idn-stub.c: Likewise. * libio/libioP.h: Likewise. * locale/duplocale.c: Likewise. * locale/freelocale.c: Likewise. * locale/newlocale.c: Likewise. * locale/setlocale.c: Likewise. * login/getutent_r.c: Likewise. * login/getutid_r.c: Likewise. * login/getutline_r.c: Likewise. * login/utmp-private.h: Likewise. * login/utmpname.c: Likewise. * malloc/mtrace.c: Likewise. * misc/efgcvt.c: Likewise. * misc/error.c: Likewise. * misc/fstab.c: Likewise. * misc/getpass.c: Likewise. * misc/mntent.c: Likewise. * misc/syslog.c: Likewise. * nis/nis_call.c: Likewise. * nis/nis_callback.c: Likewise. * nis/nss-default.c: Likewise. * nis/nss_compat/compat-grp.c: Likewise. * nis/nss_compat/compat-initgroups.c: Likewise. * nis/nss_compat/compat-pwd.c: Likewise. * nis/nss_compat/compat-spwd.c: Likewise. * nis/nss_nis/nis-alias.c: Likewise. * nis/nss_nis/nis-ethers.c: Likewise. * nis/nss_nis/nis-grp.c: Likewise. * nis/nss_nis/nis-hosts.c: Likewise. * nis/nss_nis/nis-network.c: Likewise. * nis/nss_nis/nis-proto.c: Likewise. * nis/nss_nis/nis-pwd.c: Likewise. * nis/nss_nis/nis-rpc.c: Likewise. * nis/nss_nis/nis-service.c: Likewise. * nis/nss_nis/nis-spwd.c: Likewise. * nis/nss_nisplus/nisplus-alias.c: Likewise. * nis/nss_nisplus/nisplus-ethers.c: Likewise. * nis/nss_nisplus/nisplus-grp.c: Likewise. * nis/nss_nisplus/nisplus-hosts.c: Likewise. * nis/nss_nisplus/nisplus-initgroups.c: Likewise. * nis/nss_nisplus/nisplus-network.c: Likewise. * nis/nss_nisplus/nisplus-proto.c: Likewise. * nis/nss_nisplus/nisplus-pwd.c: Likewise. * nis/nss_nisplus/nisplus-rpc.c: Likewise. * nis/nss_nisplus/nisplus-service.c: Likewise. * nis/nss_nisplus/nisplus-spwd.c: Likewise. * nis/ypclnt.c: Likewise. * nptl/libc_pthread_init.c: Likewise. * nss/getXXbyYY.c: Likewise. * nss/getXXent.c: Likewise. * nss/getXXent_r.c: Likewise. * nss/nss_db/db-XXX.c: Likewise. * nss/nss_db/db-netgrp.c: Likewise. * nss/nss_db/nss_db.h: Likewise. * nss/nss_files/files-XXX.c: Likewise. * nss/nss_files/files-alias.c: Likewise. * nss/nsswitch.c: Likewise. * posix/regex_internal.h: Likewise. * posix/wordexp.c: Likewise. * pwd/fgetpwent.c: Likewise. * resolv/res_hconf.c: Likewise. * resolv/res_libc.c: Likewise. * shadow/fgetspent.c: Likewise. * shadow/lckpwdf.c: Likewise. * shadow/sgetspent.c: Likewise. * socket/opensock.c: Likewise. * stdio-common/reg-modifier.c: Likewise. * stdio-common/reg-printf.c: Likewise. * stdio-common/reg-type.c: Likewise. * stdio-common/vfprintf.c: Likewise. * stdio-common/vfscanf.c: Likewise. * stdlib/abort.c: Likewise. * stdlib/cxa_atexit.c: Likewise. * stdlib/fmtmsg.c: Likewise. * stdlib/random.c: Likewise. * stdlib/setenv.c: Likewise. * string/strsignal.c: Likewise. * sunrpc/auth_none.c: Likewise. * sunrpc/bindrsvprt.c: Likewise. * sunrpc/create_xid.c: Likewise. * sunrpc/key_call.c: Likewise. * sunrpc/rpc_thread.c: Likewise. * sysdeps/arm/backtrace.c: Likewise. * sysdeps/generic/ldsodefs.h: Likewise. * sysdeps/generic/stdio-lock.h: Likewise. * sysdeps/generic/unwind-dw2-fde.c: Likewise. * sysdeps/i386/backtrace.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-compat.c: Likewise. * sysdeps/m68k/backtrace.c: Likewise. * sysdeps/mach/hurd/cthreads.c: Likewise. * sysdeps/mach/hurd/dirstream.h: Likewise. * sysdeps/mach/hurd/malloc-machine.h: Likewise. * sysdeps/nptl/malloc-machine.h: Likewise. * sysdeps/nptl/stdio-lock.h: Likewise. * sysdeps/posix/dirstream.h: Likewise. * sysdeps/posix/getaddrinfo.c: Likewise. * sysdeps/posix/system.c: Likewise. * sysdeps/pthread/aio_suspend.c: Likewise. * sysdeps/s390/s390-32/backtrace.c: Likewise. * sysdeps/s390/s390-64/backtrace.c: Likewise. * sysdeps/unix/sysv/linux/check_pf.c: Likewise. * sysdeps/unix/sysv/linux/if_index.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/getutent_r.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/getutid_r.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/getutline_r.c: Likewise. * sysdeps/unix/sysv/linux/shm-directory.c: Likewise. * sysdeps/unix/sysv/linux/system.c: Likewise. * sysdeps/x86_64/backtrace.c: Likewise. * time/alt_digit.c: Likewise. * time/era.c: Likewise. * time/tzset.c: Likewise. * wcsmbs/wcsmbsload.c: Likewise. * nptl/tst-initializers1.c (do_test): Refer to <libc-lock.h> instead of <bits/libc-lock.h> in comment.
462 lines
11 KiB
C
462 lines
11 KiB
C
/* Copyright (C) 1997-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <atomic.h>
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#include <ctype.h>
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#include <errno.h>
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#include <netdb.h>
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#include <nss.h>
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#include <string.h>
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#include <rpcsvc/nis.h>
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#include <libc-lock.h>
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#include "nss-nisplus.h"
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__libc_lock_define_initialized (static, lock);
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static nis_result *result;
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static nis_name tablename_val;
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static u_long tablename_len;
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#define NISENTRYVAL(idx, col, res) \
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(NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_val)
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#define NISENTRYLEN(idx, col, res) \
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(NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_len)
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static int
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_nss_nisplus_parse_servent (nis_result *result, struct servent *serv,
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char *buffer, size_t buflen, int *errnop)
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{
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char *first_unused = buffer;
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size_t room_left = buflen;
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if (result == NULL)
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return 0;
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if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS)
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|| __type_of (NIS_RES_OBJECT (result)) != NIS_ENTRY_OBJ
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|| strcmp (NIS_RES_OBJECT (result)->EN_data.en_type, "services_tbl") != 0
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|| NIS_RES_OBJECT (result)->EN_data.en_cols.en_cols_len < 4)
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return 0;
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if (NISENTRYLEN (0, 0, result) >= room_left)
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{
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no_more_room:
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*errnop = ERANGE;
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return -1;
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}
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strncpy (first_unused, NISENTRYVAL (0, 0, result),
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NISENTRYLEN (0, 0, result));
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first_unused[NISENTRYLEN (0, 0, result)] = '\0';
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serv->s_name = first_unused;
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size_t len = strlen (first_unused) + 1;
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room_left -= len;
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first_unused += len;
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if (NISENTRYLEN (0, 2, result) >= room_left)
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goto no_more_room;
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strncpy (first_unused, NISENTRYVAL (0, 2, result),
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NISENTRYLEN (0, 2, result));
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first_unused[NISENTRYLEN (0, 2, result)] = '\0';
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serv->s_proto = first_unused;
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len = strlen (first_unused) + 1;
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room_left -= len;
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first_unused += len;
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serv->s_port = htons (atoi (NISENTRYVAL (0, 3, result)));
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/* XXX Rewrite at some point to allocate the array first and then
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copy the strings. It wasteful to first concatenate the strings
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to just split them again later. */
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char *line = first_unused;
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for (unsigned int i = 0; i < NIS_RES_NUMOBJ (result); ++i)
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{
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if (strcmp (NISENTRYVAL (i, 1, result), serv->s_name) != 0)
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{
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if (NISENTRYLEN (i, 1, result) + 2 > room_left)
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goto no_more_room;
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*first_unused++ = ' ';
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first_unused = __stpncpy (first_unused, NISENTRYVAL (i, 1, result),
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NISENTRYLEN (i, 1, result));
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room_left -= NISENTRYLEN (i, 1, result) + 1;
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}
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}
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*first_unused++ = '\0';
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/* Adjust the pointer so it is aligned for
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storing pointers. */
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size_t adjust = ((__alignof__ (char *)
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- (first_unused - (char *) 0) % __alignof__ (char *))
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% __alignof__ (char *));
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if (room_left < adjust + sizeof (char *))
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goto no_more_room;
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first_unused += adjust;
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room_left -= adjust;
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serv->s_aliases = (char **) first_unused;
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/* For the terminating NULL pointer. */
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room_left -= (sizeof (char *));
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unsigned int i = 0;
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while (*line != '\0')
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{
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/* Skip leading blanks. */
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while (isspace (*line))
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++line;
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if (*line == '\0')
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break;
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if (room_left < sizeof (char *))
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goto no_more_room;
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room_left -= sizeof (char *);
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serv->s_aliases[i++] = line;
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while (*line != '\0' && *line != ' ')
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++line;
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if (*line == ' ')
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*line++ = '\0';
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}
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serv->s_aliases[i] = NULL;
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return 1;
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}
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static enum nss_status
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_nss_create_tablename (int *errnop)
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{
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if (tablename_val == NULL)
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{
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const char *local_dir = nis_local_directory ();
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size_t local_dir_len = strlen (local_dir);
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static const char prefix[] = "services.org_dir.";
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char *p = malloc (sizeof (prefix) + local_dir_len);
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if (p == NULL)
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{
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*errnop = errno;
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return NSS_STATUS_TRYAGAIN;
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}
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memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1);
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tablename_len = sizeof (prefix) - 1 + local_dir_len;
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atomic_write_barrier ();
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tablename_val = p;
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}
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return NSS_STATUS_SUCCESS;
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}
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enum nss_status
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_nss_nisplus_setservent (int stayopen)
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{
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enum nss_status status = NSS_STATUS_SUCCESS;
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int err;
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__libc_lock_lock (lock);
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if (result != NULL)
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{
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nis_freeresult (result);
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result = NULL;
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}
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if (tablename_val == NULL)
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status = _nss_create_tablename (&err);
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__libc_lock_unlock (lock);
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return status;
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}
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enum nss_status
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_nss_nisplus_endservent (void)
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{
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__libc_lock_lock (lock);
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if (result != NULL)
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{
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nis_freeresult (result);
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result = NULL;
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}
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__libc_lock_unlock (lock);
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return NSS_STATUS_SUCCESS;
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}
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static enum nss_status
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internal_nisplus_getservent_r (struct servent *serv, char *buffer,
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size_t buflen, int *errnop)
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{
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int parse_res;
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/* Get the next entry until we found a correct one. */
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do
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{
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nis_result *saved_res;
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if (result == NULL)
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{
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saved_res = NULL;
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if (tablename_val == NULL)
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{
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enum nss_status status = _nss_create_tablename (errnop);
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if (status != NSS_STATUS_SUCCESS)
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return status;
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}
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result = nis_first_entry (tablename_val);
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if (result == NULL)
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{
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*errnop = errno;
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return NSS_STATUS_TRYAGAIN;
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}
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if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
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return niserr2nss (result->status);
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}
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else
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{
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saved_res = result;
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result = nis_next_entry (tablename_val, &result->cookie);
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if (result == NULL)
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{
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*errnop = errno;
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return NSS_STATUS_TRYAGAIN;
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}
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if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
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{
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nis_freeresult (saved_res);
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return niserr2nss (result->status);
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}
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}
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parse_res = _nss_nisplus_parse_servent (result, serv, buffer,
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buflen, errnop);
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if (__glibc_unlikely (parse_res == -1))
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{
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nis_freeresult (result);
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result = saved_res;
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*errnop = ERANGE;
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return NSS_STATUS_TRYAGAIN;
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}
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else
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{
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if (saved_res)
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nis_freeresult (saved_res);
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}
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}
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while (!parse_res);
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return NSS_STATUS_SUCCESS;
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}
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enum nss_status
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_nss_nisplus_getservent_r (struct servent *result, char *buffer,
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size_t buflen, int *errnop)
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{
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__libc_lock_lock (lock);
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int status = internal_nisplus_getservent_r (result, buffer, buflen, errnop);
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__libc_lock_unlock (lock);
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return status;
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}
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enum nss_status
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_nss_nisplus_getservbyname_r (const char *name, const char *protocol,
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struct servent *serv,
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char *buffer, size_t buflen, int *errnop)
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{
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if (tablename_val == NULL)
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{
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__libc_lock_lock (lock);
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enum nss_status status = _nss_create_tablename (errnop);
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__libc_lock_unlock (lock);
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if (status != NSS_STATUS_SUCCESS)
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return status;
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}
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if (name == NULL || protocol == NULL)
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{
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*errnop = EINVAL;
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return NSS_STATUS_NOTFOUND;
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}
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size_t protocol_len = strlen (protocol);
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char buf[strlen (name) + protocol_len + 17 + tablename_len];
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int olderr = errno;
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/* Search at first in the alias list, and use the correct name
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for the next search */
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snprintf (buf, sizeof (buf), "[name=%s,proto=%s],%s", name, protocol,
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tablename_val);
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nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS | USE_DGRAM,
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NULL, NULL);
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if (result != NULL)
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{
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char *bufptr = buf;
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/* If we did not find it, try it as original name. But if the
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database is correct, we should find it in the first case, too */
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if ((result->status != NIS_SUCCESS
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&& result->status != NIS_S_SUCCESS)
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|| __type_of (NIS_RES_OBJECT (result)) != NIS_ENTRY_OBJ
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|| strcmp (NIS_RES_OBJECT (result)->EN_data.en_type,
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"services_tbl") != 0
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|| NIS_RES_OBJECT (result)->EN_data.en_cols.en_cols_len < 4)
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snprintf (buf, sizeof (buf), "[cname=%s,proto=%s],%s", name, protocol,
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tablename_val);
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else
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{
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/* We need to allocate a new buffer since there is no
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guarantee the returned name has a length limit. */
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const char *entryval = NISENTRYVAL(0, 0, result);
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size_t buflen = (strlen (entryval) + protocol_len + 17
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+ tablename_len);
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bufptr = alloca (buflen);
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snprintf (bufptr, buflen, "[cname=%s,proto=%s],%s",
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entryval, protocol, tablename_val);
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}
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nis_freeresult (result);
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result = nis_list (bufptr, FOLLOW_PATH | FOLLOW_LINKS | USE_DGRAM,
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NULL, NULL);
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}
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if (result == NULL)
|
|
{
|
|
*errnop = ENOMEM;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
|
|
if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
|
|
{
|
|
enum nss_status status = niserr2nss (result->status);
|
|
|
|
__set_errno (olderr);
|
|
|
|
nis_freeresult (result);
|
|
return status;
|
|
}
|
|
|
|
int parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen,
|
|
errnop);
|
|
nis_freeresult (result);
|
|
|
|
if (__glibc_unlikely (parse_res < 1))
|
|
{
|
|
if (parse_res == -1)
|
|
{
|
|
*errnop = ERANGE;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
else
|
|
{
|
|
__set_errno (olderr);
|
|
return NSS_STATUS_NOTFOUND;
|
|
}
|
|
}
|
|
|
|
return NSS_STATUS_SUCCESS;
|
|
}
|
|
|
|
enum nss_status
|
|
_nss_nisplus_getservbyport_r (const int number, const char *protocol,
|
|
struct servent *serv,
|
|
char *buffer, size_t buflen, int *errnop)
|
|
{
|
|
if (tablename_val == NULL)
|
|
{
|
|
__libc_lock_lock (lock);
|
|
|
|
enum nss_status status = _nss_create_tablename (errnop);
|
|
|
|
__libc_lock_unlock (lock);
|
|
|
|
if (status != NSS_STATUS_SUCCESS)
|
|
return status;
|
|
}
|
|
|
|
if (protocol == NULL)
|
|
{
|
|
*errnop = EINVAL;
|
|
return NSS_STATUS_NOTFOUND;
|
|
}
|
|
|
|
char buf[17 + 3 * sizeof (int) + strlen (protocol) + tablename_len];
|
|
int olderr = errno;
|
|
|
|
snprintf (buf, sizeof (buf), "[port=%d,proto=%s],%s",
|
|
number, protocol, tablename_val);
|
|
|
|
nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS | USE_DGRAM,
|
|
NULL, NULL);
|
|
|
|
if (result == NULL)
|
|
{
|
|
*errnop = ENOMEM;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
|
|
if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
|
|
{
|
|
enum nss_status status = niserr2nss (result->status);
|
|
|
|
__set_errno (olderr);
|
|
|
|
nis_freeresult (result);
|
|
return status;
|
|
}
|
|
|
|
int parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen,
|
|
errnop);
|
|
nis_freeresult (result);
|
|
|
|
if (__glibc_unlikely (parse_res < 1))
|
|
{
|
|
if (parse_res == -1)
|
|
{
|
|
*errnop = ERANGE;
|
|
return NSS_STATUS_TRYAGAIN;
|
|
}
|
|
else
|
|
{
|
|
__set_errno (olderr);
|
|
return NSS_STATUS_NOTFOUND;
|
|
}
|
|
}
|
|
|
|
return NSS_STATUS_SUCCESS;
|
|
}
|