util-lib: move nss-util.h from shared/ to basic/
The header file defines some helpers for GLIBC NSS and doesn't include anything else but glibc headers, hence there's little reason to keep it in shared/. See: #2008
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Lennart Poettering
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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2014 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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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 License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <grp.h>
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#include <netdb.h>
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#include <nss.h>
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#include <pwd.h>
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#include <resolv.h>
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#define NSS_GETHOSTBYNAME_PROTOTYPES(module) \
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enum nss_status _nss_##module##_gethostbyname4_r( \
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const char *name, \
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struct gaih_addrtuple **pat, \
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char *buffer, size_t buflen, \
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int *errnop, int *h_errnop, \
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int32_t *ttlp) _public_; \
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enum nss_status _nss_##module##_gethostbyname3_r( \
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const char *name, \
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int af, \
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struct hostent *host, \
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char *buffer, size_t buflen, \
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int *errnop, int *h_errnop, \
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int32_t *ttlp, \
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char **canonp) _public_; \
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enum nss_status _nss_##module##_gethostbyname2_r( \
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const char *name, \
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int af, \
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struct hostent *host, \
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char *buffer, size_t buflen, \
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int *errnop, int *h_errnop) _public_; \
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enum nss_status _nss_##module##_gethostbyname_r( \
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const char *name, \
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struct hostent *host, \
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char *buffer, size_t buflen, \
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int *errnop, int *h_errnop) _public_
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#define NSS_GETHOSTBYADDR_PROTOTYPES(module) \
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enum nss_status _nss_##module##_gethostbyaddr2_r( \
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const void* addr, socklen_t len, \
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int af, \
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struct hostent *host, \
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char *buffer, size_t buflen, \
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int *errnop, int *h_errnop, \
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int32_t *ttlp) _public_; \
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enum nss_status _nss_##module##_gethostbyaddr_r( \
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const void* addr, socklen_t len, \
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int af, \
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struct hostent *host, \
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char *buffer, size_t buflen, \
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int *errnop, int *h_errnop) _public_
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#define NSS_GETHOSTBYNAME_FALLBACKS(module) \
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enum nss_status _nss_##module##_gethostbyname2_r( \
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const char *name, \
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int af, \
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struct hostent *host, \
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char *buffer, size_t buflen, \
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int *errnop, int *h_errnop) { \
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return _nss_##module##_gethostbyname3_r( \
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name, \
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af, \
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host, \
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buffer, buflen, \
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errnop, h_errnop, \
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NULL, \
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NULL); \
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} \
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enum nss_status _nss_##module##_gethostbyname_r( \
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const char *name, \
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struct hostent *host, \
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char *buffer, size_t buflen, \
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int *errnop, int *h_errnop) { \
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enum nss_status ret = NSS_STATUS_NOTFOUND; \
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\
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if (_res.options & RES_USE_INET6) \
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ret = _nss_##module##_gethostbyname3_r( \
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name, \
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AF_INET6, \
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host, \
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buffer, buflen, \
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errnop, h_errnop, \
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NULL, \
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NULL); \
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if (ret == NSS_STATUS_NOTFOUND) \
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ret = _nss_##module##_gethostbyname3_r( \
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name, \
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AF_INET, \
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host, \
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buffer, buflen, \
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errnop, h_errnop, \
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NULL, \
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NULL); \
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return ret; \
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} \
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struct __useless_struct_to_allow_trailing_semicolon__
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#define NSS_GETHOSTBYADDR_FALLBACKS(module) \
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enum nss_status _nss_##module##_gethostbyaddr_r( \
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const void* addr, socklen_t len, \
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int af, \
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struct hostent *host, \
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char *buffer, size_t buflen, \
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int *errnop, int *h_errnop) { \
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return _nss_##module##_gethostbyaddr2_r( \
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addr, len, \
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af, \
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host, \
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buffer, buflen, \
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errnop, h_errnop, \
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NULL); \
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} \
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struct __useless_struct_to_allow_trailing_semicolon__
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#define NSS_GETPW_PROTOTYPES(module) \
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enum nss_status _nss_##module##_getpwnam_r( \
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const char *name, \
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struct passwd *pwd, \
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char *buffer, size_t buflen, \
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int *errnop) _public_; \
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enum nss_status _nss_mymachines_getpwuid_r( \
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uid_t uid, \
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struct passwd *pwd, \
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char *buffer, size_t buflen, \
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int *errnop) _public_
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#define NSS_GETGR_PROTOTYPES(module) \
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enum nss_status _nss_##module##_getgrnam_r( \
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const char *name, \
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struct group *gr, \
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char *buffer, size_t buflen, \
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int *errnop) _public_; \
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enum nss_status _nss_##module##_getgrgid_r( \
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gid_t gid, \
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struct group *gr, \
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char *buffer, size_t buflen, \
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int *errnop) _public_
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