src/shared/nss-util.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #pragma once
   4
   5 /***
   6   This file is part of systemd.
   7
   8   Copyright 2014 Lennart Poettering
   9
  10   systemd is free software; you can redistribute it and/or modify it
  11   under the terms of the GNU Lesser General Public License as published by
  12   the Free Software Foundation; either version 2.1 of the License, or
  13   (at your option) any later version.
  14
  15   systemd is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   Lesser General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  22 ***/
  23
  24 #include <nss.h>
  25 #include <netdb.h>
  26
  27 #define NSS_GETHOSTBYNAME_PROTOTYPES(module)            \
  28 enum nss_status _nss_##module##_gethostbyname4_r(       \
  29                 const char *name,                       \
  30                 struct gaih_addrtuple **pat,            \
  31                 char *buffer, size_t buflen,            \
  32                 int *errnop, int *h_errnop,             \
  33                 int32_t *ttlp) _public_;                \
  34 enum nss_status _nss_##module##_gethostbyname3_r(       \
  35                 const char *name,                       \
  36                 int af,                                 \
  37                 struct hostent *host,                   \
  38                 char *buffer, size_t buflen,            \
  39                 int *errnop, int *h_errnop,             \
  40                 int32_t *ttlp,                          \
  41                 char **canonp) _public_;                \
  42 enum nss_status _nss_##module##_gethostbyname2_r(       \
  43                 const char *name,                       \
  44                 int af,                                 \
  45                 struct hostent *host,                   \
  46                 char *buffer, size_t buflen,            \
  47                 int *errnop, int *h_errnop) _public_;   \
  48 enum nss_status _nss_##module##_gethostbyname_r(        \
  49                 const char *name,                       \
  50                 struct hostent *host,                   \
  51                 char *buffer, size_t buflen,            \
  52                 int *errnop, int *h_errnop) _public_
  53
  54 #define NSS_GETHOSTBYADDR_PROTOTYPES(module)            \
  55 enum nss_status _nss_##module##_gethostbyaddr2_r(       \
  56                 const void* addr, socklen_t len,        \
  57                 int af,                                 \
  58                 struct hostent *host,                   \
  59                 char *buffer, size_t buflen,            \
  60                 int *errnop, int *h_errnop,             \
  61                 int32_t *ttlp) _public_;                \
  62 enum nss_status _nss_##module##_gethostbyaddr_r(        \
  63                 const void* addr, socklen_t len,        \
  64                 int af,                                 \
  65                 struct hostent *host,                   \
  66                 char *buffer, size_t buflen,            \
  67                 int *errnop, int *h_errnop) _public_
  68
  69 #define NSS_GETHOSTBYNAME_FALLBACKS(module)             \
  70 enum nss_status _nss_##module##_gethostbyname2_r(       \
  71                 const char *name,                       \
  72                 int af,                                 \
  73                 struct hostent *host,                   \
  74                 char *buffer, size_t buflen,            \
  75                 int *errnop, int *h_errnop) {           \
  76         return _nss_##module##_gethostbyname3_r(        \
  77                         name,                           \
  78                         af,                             \
  79                         host,                           \
  80                         buffer, buflen,                 \
  81                         errnop, h_errnop,               \
  82                         NULL,                           \
  83                         NULL);                          \
  84 }                                                       \
  85 enum nss_status _nss_##module##_gethostbyname_r(        \
  86                 const char *name,                       \
  87                 struct hostent *host,                   \
  88                 char *buffer, size_t buflen,            \
  89                 int *errnop, int *h_errnop) {           \
  90         return _nss_##module##_gethostbyname3_r(        \
  91                         name,                           \
  92                         AF_UNSPEC,                      \
  93                         host,                           \
  94                         buffer, buflen,                 \
  95                         errnop, h_errnop,               \
  96                         NULL,                           \
  97                         NULL);                          \
  98 }
  99
 100 #define NSS_GETHOSTBYADDR_FALLBACKS(module)             \
 101 enum nss_status _nss_##module##_gethostbyaddr_r(        \
 102                 const void* addr, socklen_t len,        \
 103                 int af,                                 \
 104                 struct hostent *host,                   \
 105                 char *buffer, size_t buflen,            \
 106                 int *errnop, int *h_errnop) {           \
 107         return _nss_##module##_gethostbyaddr2_r(        \
 108                         addr, len,                      \
 109                         af,                             \
 110                         host,                           \
 111                         buffer, buflen,                 \
 112                         errnop, h_errnop,               \
 113                         NULL);                          \
 114 }