| 1 | /* A GNU-like <arpa/inet.h>.
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| 2 |
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| 3 | Copyright (C) 2005-2006, 2008-2021 Free Software Foundation, Inc.
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| 4 |
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| 5 | This file is free software: you can redistribute it and/or modify
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| 6 | it under the terms of the GNU Lesser General Public License as
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| 7 | published by the Free Software Foundation; either version 2.1 of the
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| 8 | License, or (at your option) any later version.
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| 9 |
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| 10 | This file is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | GNU Lesser General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU Lesser General Public License
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| 16 | along with this program. If not, see <https://www.gnu.org/licenses/>. */
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| 17 |
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| 18 | #ifndef _@GUARD_PREFIX@_ARPA_INET_H
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| 19 |
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| 20 | #if __GNUC__ >= 3
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| 21 | @PRAGMA_SYSTEM_HEADER@
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| 22 | #endif
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| 23 | @PRAGMA_COLUMNS@
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| 24 |
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| 25 | #if @HAVE_FEATURES_H@
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| 26 | # include <features.h> /* for __GLIBC__ */
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| 27 | #endif
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| 28 |
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| 29 | /* Gnulib's sys/socket.h is responsible for defining socklen_t (used below) and
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| 30 | for pulling in winsock2.h etc. under MinGW.
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| 31 | But avoid namespace pollution on glibc systems. */
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| 32 | #ifndef __GLIBC__
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| 33 | # include <sys/socket.h>
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| 34 | #endif
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| 35 |
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| 36 | /* On NonStop Kernel, inet_ntop and inet_pton are declared in <netdb.h>.
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| 37 | But avoid namespace pollution on glibc systems. */
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| 38 | #if defined __TANDEM && !defined __GLIBC__
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| 39 | # include <netdb.h>
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| 40 | #endif
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| 41 |
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| 42 | #if @HAVE_ARPA_INET_H@
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| 43 |
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| 44 | /* The include_next requires a split double-inclusion guard. */
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| 45 | # @INCLUDE_NEXT@ @NEXT_ARPA_INET_H@
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| 46 |
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| 47 | #endif
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| 48 |
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| 49 | #ifndef _@GUARD_PREFIX@_ARPA_INET_H
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| 50 | #define _@GUARD_PREFIX@_ARPA_INET_H
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| 51 |
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| 52 | /* Get all possible declarations of inet_ntop() and inet_pton(). */
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| 53 | #if (@GNULIB_INET_NTOP@ || @GNULIB_INET_PTON@ || defined GNULIB_POSIXCHECK) \
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| 54 | && @HAVE_WS2TCPIP_H@
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| 55 | # include <ws2tcpip.h>
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| 56 | #endif
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| 57 |
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| 58 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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| 59 |
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| 60 | /* The definition of _GL_ARG_NONNULL is copied here. */
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| 61 |
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| 62 | /* The definition of _GL_WARN_ON_USE is copied here. */
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| 63 |
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| 64 |
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| 65 | #if @GNULIB_INET_NTOP@
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| 66 | /* Converts an internet address from internal format to a printable,
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| 67 | presentable format.
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| 68 | AF is an internet address family, such as AF_INET or AF_INET6.
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| 69 | SRC points to a 'struct in_addr' (for AF_INET) or 'struct in6_addr'
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| 70 | (for AF_INET6).
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| 71 | DST points to a buffer having room for CNT bytes.
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| 72 | The printable representation of the address (in numeric form, not
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| 73 | surrounded by [...], no reverse DNS is done) is placed in DST, and
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| 74 | DST is returned. If an error occurs, the return value is NULL and
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| 75 | errno is set. If CNT bytes are not sufficient to hold the result,
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| 76 | the return value is NULL and errno is set to ENOSPC. A good value
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| 77 | for CNT is 46.
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| 78 |
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| 79 | For more details, see the POSIX:2008 specification
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| 80 | <https://pubs.opengroup.org/onlinepubs/9699919799/functions/inet_ntop.html>. */
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| 81 | # if @REPLACE_INET_NTOP@
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| 82 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 83 | # undef inet_ntop
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| 84 | # define inet_ntop rpl_inet_ntop
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| 85 | # endif
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| 86 | _GL_FUNCDECL_RPL (inet_ntop, const char *,
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| 87 | (int af, const void *restrict src,
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| 88 | char *restrict dst, socklen_t cnt)
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| 89 | _GL_ARG_NONNULL ((2, 3)));
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| 90 | _GL_CXXALIAS_RPL (inet_ntop, const char *,
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| 91 | (int af, const void *restrict src,
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| 92 | char *restrict dst, socklen_t cnt));
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| 93 | # else
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| 94 | # if !@HAVE_DECL_INET_NTOP@
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| 95 | _GL_FUNCDECL_SYS (inet_ntop, const char *,
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| 96 | (int af, const void *restrict src,
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| 97 | char *restrict dst, socklen_t cnt)
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| 98 | _GL_ARG_NONNULL ((2, 3)));
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| 99 | # endif
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| 100 | /* Need to cast, because on NonStop Kernel, the fourth parameter is
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| 101 | size_t cnt. */
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| 102 | _GL_CXXALIAS_SYS_CAST (inet_ntop, const char *,
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| 103 | (int af, const void *restrict src,
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| 104 | char *restrict dst, socklen_t cnt));
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| 105 | # endif
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| 106 | # if __GLIBC__ >= 2
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| 107 | _GL_CXXALIASWARN (inet_ntop);
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| 108 | # endif
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| 109 | #elif defined GNULIB_POSIXCHECK
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| 110 | # undef inet_ntop
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| 111 | # if HAVE_RAW_DECL_INET_NTOP
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| 112 | _GL_WARN_ON_USE (inet_ntop, "inet_ntop is unportable - "
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| 113 | "use gnulib module inet_ntop for portability");
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| 114 | # endif
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| 115 | #endif
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| 116 |
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| 117 | #if @GNULIB_INET_PTON@
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| 118 | # if @REPLACE_INET_PTON@
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| 119 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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| 120 | # undef inet_pton
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| 121 | # define inet_pton rpl_inet_pton
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| 122 | # endif
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| 123 | _GL_FUNCDECL_RPL (inet_pton, int,
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| 124 | (int af, const char *restrict src, void *restrict dst)
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| 125 | _GL_ARG_NONNULL ((2, 3)));
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| 126 | _GL_CXXALIAS_RPL (inet_pton, int,
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| 127 | (int af, const char *restrict src, void *restrict dst));
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| 128 | # else
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| 129 | # if !@HAVE_DECL_INET_PTON@
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| 130 | _GL_FUNCDECL_SYS (inet_pton, int,
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| 131 | (int af, const char *restrict src, void *restrict dst)
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| 132 | _GL_ARG_NONNULL ((2, 3)));
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| 133 | # endif
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| 134 | _GL_CXXALIAS_SYS (inet_pton, int,
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| 135 | (int af, const char *restrict src, void *restrict dst));
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| 136 | # endif
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| 137 | # if __GLIBC__ >= 2
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| 138 | _GL_CXXALIASWARN (inet_pton);
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| 139 | # endif
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| 140 | #elif defined GNULIB_POSIXCHECK
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| 141 | # undef inet_pton
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| 142 | # if HAVE_RAW_DECL_INET_PTON
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| 143 | _GL_WARN_ON_USE (inet_pton, "inet_pton is unportable - "
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| 144 | "use gnulib module inet_pton for portability");
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| 145 | # endif
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| 146 | #endif
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| 147 |
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| 148 |
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| 149 | #endif /* _@GUARD_PREFIX@_ARPA_INET_H */
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| 150 | #endif /* _@GUARD_PREFIX@_ARPA_INET_H */
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