gl/arpa_inet.in.h

   1 /* A GNU-like <arpa/inet.h>.
   2
   3    Copyright (C) 2005-2006, 2008-2012 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _@GUARD_PREFIX@_ARPA_INET_H
  19
  20 #if __GNUC__ >= 3
  21 @PRAGMA_SYSTEM_HEADER@
  22 #endif
  23 @PRAGMA_COLUMNS@
  24
  25 #if @HAVE_FEATURES_H@
  26 # include <features.h> /* for __GLIBC__ */
  27 #endif
  28
  29 /* Gnulib's sys/socket.h is responsible for defining socklen_t (used below) and
  30    for pulling in winsock2.h etc. under MinGW.
  31    But avoid namespace pollution on glibc systems.  */
  32 #ifndef __GLIBC__
  33 # include <sys/socket.h>
  34 #endif
  35
  36 /* On NonStop Kernel, inet_ntop and inet_pton are declared in <netdb.h>.
  37    But avoid namespace pollution on glibc systems.  */
  38 #if defined __TANDEM && !defined __GLIBC__
  39 # include <netdb.h>
  40 #endif
  41
  42 #if @HAVE_ARPA_INET_H@
  43
  44 /* The include_next requires a split double-inclusion guard.  */
  45 # @INCLUDE_NEXT@ @NEXT_ARPA_INET_H@
  46
  47 #endif
  48
  49 #ifndef _@GUARD_PREFIX@_ARPA_INET_H
  50 #define _@GUARD_PREFIX@_ARPA_INET_H
  51
  52 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  53
  54 /* The definition of _GL_ARG_NONNULL is copied here.  */
  55
  56 /* The definition of _GL_WARN_ON_USE is copied here.  */
  57
  58
  59 #if @GNULIB_INET_NTOP@
  60 /* Converts an internet address from internal format to a printable,
  61    presentable format.
  62    AF is an internet address family, such as AF_INET or AF_INET6.
  63    SRC points to a 'struct in_addr' (for AF_INET) or 'struct in6_addr'
  64    (for AF_INET6).
  65    DST points to a buffer having room for CNT bytes.
  66    The printable representation of the address (in numeric form, not
  67    surrounded by [...], no reverse DNS is done) is placed in DST, and
  68    DST is returned.  If an error occurs, the return value is NULL and
  69    errno is set.  If CNT bytes are not sufficient to hold the result,
  70    the return value is NULL and errno is set to ENOSPC.  A good value
  71    for CNT is 46.
  72
  73    For more details, see the POSIX:2001 specification
  74    <http://www.opengroup.org/susv3xsh/inet_ntop.html>.  */
  75 # if @REPLACE_INET_NTOP@
  76 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  77 #   undef inet_ntop
  78 #   define inet_ntop rpl_inet_ntop
  79 #  endif
  80 _GL_FUNCDECL_RPL (inet_ntop, const char *,
  81                   (int af, const void *restrict src,
  82                    char *restrict dst, socklen_t cnt)
  83                   _GL_ARG_NONNULL ((2, 3)));
  84 _GL_CXXALIAS_RPL (inet_ntop, const char *,
  85                   (int af, const void *restrict src,
  86                    char *restrict dst, socklen_t cnt));
  87 # else
  88 #  if !@HAVE_DECL_INET_NTOP@
  89 _GL_FUNCDECL_SYS (inet_ntop, const char *,
  90                   (int af, const void *restrict src,
  91                    char *restrict dst, socklen_t cnt)
  92                   _GL_ARG_NONNULL ((2, 3)));
  93 #  endif
  94 /* Need to cast, because on NonStop Kernel, the fourth parameter is
  95                                             size_t cnt.  */
  96 _GL_CXXALIAS_SYS_CAST (inet_ntop, const char *,
  97                        (int af, const void *restrict src,
  98                         char *restrict dst, socklen_t cnt));
  99 # endif
 100 _GL_CXXALIASWARN (inet_ntop);
 101 #elif defined GNULIB_POSIXCHECK
 102 # undef inet_ntop
 103 # if HAVE_RAW_DECL_INET_NTOP
 104 _GL_WARN_ON_USE (inet_ntop, "inet_ntop is unportable - "
 105                  "use gnulib module inet_ntop for portability");
 106 # endif
 107 #endif
 108
 109 #if @GNULIB_INET_PTON@
 110 # if @REPLACE_INET_PTON@
 111 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 112 #   undef inet_pton
 113 #   define inet_pton rpl_inet_pton
 114 #  endif
 115 _GL_FUNCDECL_RPL (inet_pton, int,
 116                   (int af, const char *restrict src, void *restrict dst)
 117                   _GL_ARG_NONNULL ((2, 3)));
 118 _GL_CXXALIAS_RPL (inet_pton, int,
 119                   (int af, const char *restrict src, void *restrict dst));
 120 # else
 121 #  if !@HAVE_DECL_INET_PTON@
 122 _GL_FUNCDECL_SYS (inet_pton, int,
 123                   (int af, const char *restrict src, void *restrict dst)
 124                   _GL_ARG_NONNULL ((2, 3)));
 125 #  endif
 126 _GL_CXXALIAS_SYS (inet_pton, int,
 127                   (int af, const char *restrict src, void *restrict dst));
 128 # endif
 129 _GL_CXXALIASWARN (inet_pton);
 130 #elif defined GNULIB_POSIXCHECK
 131 # undef inet_pton
 132 # if HAVE_RAW_DECL_INET_PTON
 133 _GL_WARN_ON_USE (inet_pton, "inet_pton is unportable - "
 134                  "use gnulib module inet_pton for portability");
 135 # endif
 136 #endif
 137
 138
 139 #endif /* _@GUARD_PREFIX@_ARPA_INET_H */
 140 #endif /* _@GUARD_PREFIX@_ARPA_INET_H */