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wget/lib/netdb.in.h

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/* Provide a netdb.h header file for systems lacking it (read: MinGW).
Copyright (C) 2008-2023 Free Software Foundation, Inc.
Written by Simon Josefsson.
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* This file is supposed to be used on platforms that lack <netdb.h>.
It is intended to provide definitions and prototypes needed by an
application. */
#ifndef _@GUARD_PREFIX@_NETDB_H
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
@PRAGMA_COLUMNS@
#if @HAVE_NETDB_H@
/* The include_next requires a split double-inclusion guard. */
# @INCLUDE_NEXT@ @NEXT_NETDB_H@
#endif
#ifndef _@GUARD_PREFIX@_NETDB_H
#define _@GUARD_PREFIX@_NETDB_H
/* This file uses GNULIB_POSIXCHECK, HAVE_RAW_DECL_*. */
#if !_GL_CONFIG_H_INCLUDED
#error "Please include config.h first."
#endif
/* Get <netdb.h> definitions such as 'socklen_t' on IRIX 6.5 and OSF/1 4.0 and
'struct hostent' on MinGW. */
#include <sys/socket.h>
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
/* The definition of _GL_ARG_NONNULL is copied here. */
/* The definition of _GL_WARN_ON_USE is copied here. */
/* Declarations for a platform that lacks <netdb.h>, or where it is
incomplete. */
#if @GNULIB_GETADDRINFO@
# if !@HAVE_STRUCT_ADDRINFO@
# ifdef __cplusplus
extern "C" {
# endif
# if !GNULIB_defined_struct_addrinfo
/* Structure to contain information about address of a service provider. */
struct addrinfo
{
int ai_flags; /* Input flags. */
int ai_family; /* Protocol family for socket. */
int ai_socktype; /* Socket type. */
int ai_protocol; /* Protocol for socket. */
socklen_t ai_addrlen; /* Length of socket address. */
struct sockaddr *ai_addr; /* Socket address for socket. */
char *ai_canonname; /* Canonical name for service location. */
struct addrinfo *ai_next; /* Pointer to next in list. */
};
# define GNULIB_defined_struct_addrinfo 1
# endif
# ifdef __cplusplus
}
# endif
# endif
/* Possible values for 'ai_flags' field in 'addrinfo' structure. */
# ifndef AI_PASSIVE
# define AI_PASSIVE 0x0001 /* Socket address is intended for 'bind'. */
# endif
# ifndef AI_CANONNAME
# define AI_CANONNAME 0x0002 /* Request for canonical name. */
# endif
# ifndef AI_NUMERICSERV
# define AI_NUMERICSERV 0x0400 /* Don't use name resolution. */
# endif
# if 0
# define AI_NUMERICHOST 0x0004 /* Don't use name resolution. */
# endif
/* These symbolic constants are required to be present by POSIX, but
our getaddrinfo replacement doesn't use them (yet). Setting them
to 0 on systems that doesn't have them avoids causing problems for
system getaddrinfo implementations that would be confused by
unknown values. */
# ifndef AI_V4MAPPED
# define AI_V4MAPPED 0 /* 0x0008: IPv4 mapped addresses are acceptable. */
# endif
# ifndef AI_ALL
# define AI_ALL 0 /* 0x0010: Return IPv4 mapped and IPv6 addresses. */
# endif
# ifndef AI_ADDRCONFIG
# define AI_ADDRCONFIG 0 /* 0x0020: Use configuration of this host to choose
returned address type. */
# endif
/* Error values for 'getaddrinfo' function. */
# ifndef EAI_BADFLAGS
# define EAI_BADFLAGS -1 /* Invalid value for 'ai_flags' field. */
# define EAI_NONAME -2 /* NAME or SERVICE is unknown. */
# define EAI_AGAIN -3 /* Temporary failure in name resolution. */
# define EAI_FAIL -4 /* Non-recoverable failure in name res. */
# define EAI_NODATA -5 /* No address associated with NAME. */
# define EAI_FAMILY -6 /* 'ai_family' not supported. */
# define EAI_SOCKTYPE -7 /* 'ai_socktype' not supported. */
# define EAI_SERVICE -8 /* SERVICE not supported for 'ai_socktype'. */
# define EAI_MEMORY -10 /* Memory allocation failure. */
# endif
/* Since EAI_NODATA is deprecated by RFC3493, some systems (at least
FreeBSD, which does define EAI_BADFLAGS) have removed the definition
in favor of EAI_NONAME. */
# if !defined EAI_NODATA && defined EAI_NONAME
# define EAI_NODATA EAI_NONAME
# endif
# ifndef EAI_OVERFLOW
/* Not defined on mingw32 and Haiku. */
# define EAI_OVERFLOW -12 /* Argument buffer overflow. */
# endif
# ifndef EAI_ADDRFAMILY
/* Not defined on mingw32. */
# define EAI_ADDRFAMILY -9 /* Address family for NAME not supported. */
# endif
# ifndef EAI_SYSTEM
/* Not defined on mingw32. */
# define EAI_SYSTEM -11 /* System error returned in 'errno'. */
# endif
# if 0
/* The commented out definitions below are not yet implemented in the
GNULIB getaddrinfo() replacement, so are not yet needed.
If they are restored, be sure to protect the definitions with #ifndef. */
# ifndef EAI_INPROGRESS
# define EAI_INPROGRESS -100 /* Processing request in progress. */
# define EAI_CANCELED -101 /* Request canceled. */
# define EAI_NOTCANCELED -102 /* Request not canceled. */
# define EAI_ALLDONE -103 /* All requests done. */
# define EAI_INTR -104 /* Interrupted by a signal. */
# define EAI_IDN_ENCODE -105 /* IDN encoding failed. */
# endif
# endif
/* Translate name of a service location and/or a service name to set of
socket addresses.
For more details, see the POSIX:2008 specification
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/getaddrinfo.html>. */
# if @REPLACE_GETADDRINFO@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef getaddrinfo
# define getaddrinfo rpl_getaddrinfo
# endif
_GL_FUNCDECL_RPL (getaddrinfo, int,
(const char *restrict nodename,
const char *restrict servname,
const struct addrinfo *restrict hints,
struct addrinfo **restrict res)
_GL_ARG_NONNULL ((4)));
_GL_CXXALIAS_RPL (getaddrinfo, int,
(const char *restrict nodename,
const char *restrict servname,
const struct addrinfo *restrict hints,
struct addrinfo **restrict res));
# else
# if !@HAVE_DECL_GETADDRINFO@
_GL_FUNCDECL_SYS (getaddrinfo, int,
(const char *restrict nodename,
const char *restrict servname,
const struct addrinfo *restrict hints,
struct addrinfo **restrict res)
_GL_ARG_NONNULL ((4)));
# endif
_GL_CXXALIAS_SYS (getaddrinfo, int,
(const char *restrict nodename,
const char *restrict servname,
const struct addrinfo *restrict hints,
struct addrinfo **restrict res));
# endif
_GL_CXXALIASWARN (getaddrinfo);
/* Free 'addrinfo' structure AI including associated storage.
For more details, see the POSIX:2008 specification
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/getaddrinfo.html>. */
# if @REPLACE_GETADDRINFO@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef freeaddrinfo
# define freeaddrinfo rpl_freeaddrinfo
# endif
_GL_FUNCDECL_RPL (freeaddrinfo, void, (struct addrinfo *ai)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (freeaddrinfo, void, (struct addrinfo *ai));
# else
# if !@HAVE_DECL_FREEADDRINFO@
_GL_FUNCDECL_SYS (freeaddrinfo, void, (struct addrinfo *ai)
_GL_ARG_NONNULL ((1)));
# endif
_GL_CXXALIAS_SYS (freeaddrinfo, void, (struct addrinfo *ai));
# endif
_GL_CXXALIASWARN (freeaddrinfo);
# if @REPLACE_GAI_STRERROR@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef gai_strerror
# define gai_strerror rpl_gai_strerror
# endif
_GL_FUNCDECL_RPL (gai_strerror, const char *, (int ecode));
_GL_CXXALIAS_RPL (gai_strerror, const char *, (int ecode));
# else
# if !@HAVE_DECL_GAI_STRERROR@
/* Convert error return from getaddrinfo() to a string.
For more details, see the POSIX:2008 specification
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/gai_strerror.html>. */
_GL_FUNCDECL_SYS (gai_strerror, const char *, (int ecode));
# endif
_GL_CXXALIAS_SYS (gai_strerror, const char *, (int ecode));
# endif
# if __GLIBC__ >= 2
_GL_CXXALIASWARN (gai_strerror);
# endif
# if !@HAVE_DECL_GETNAMEINFO@
/* Convert socket address to printable node and service names.
For more details, see the POSIX:2008 specification
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/getnameinfo.html>. */
_GL_FUNCDECL_SYS (getnameinfo, int,
(const struct sockaddr *restrict sa, socklen_t salen,
char *restrict node, socklen_t nodelen,
char *restrict service, socklen_t servicelen,
int flags)
_GL_ARG_NONNULL ((1)));
# endif
/* Need to cast, because on glibc systems, the seventh parameter is
unsigned int flags. */
_GL_CXXALIAS_SYS_CAST (getnameinfo, int,
(const struct sockaddr *restrict sa, socklen_t salen,
char *restrict node, socklen_t nodelen,
char *restrict service, socklen_t servicelen,
int flags));
_GL_CXXALIASWARN (getnameinfo);
/* Possible flags for getnameinfo. */
# ifndef NI_NUMERICHOST
# define NI_NUMERICHOST 1
# endif
# ifndef NI_NUMERICSERV
# define NI_NUMERICSERV 2
# endif
#elif defined GNULIB_POSIXCHECK
# undef getaddrinfo
# if HAVE_RAW_DECL_GETADDRINFO
_GL_WARN_ON_USE (getaddrinfo, "getaddrinfo is unportable - "
"use gnulib module getaddrinfo for portability");
# endif
# undef freeaddrinfo
# if HAVE_RAW_DECL_FREEADDRINFO
_GL_WARN_ON_USE (freeaddrinfo, "freeaddrinfo is unportable - "
"use gnulib module getaddrinfo for portability");
# endif
# undef gai_strerror
# if HAVE_RAW_DECL_GAI_STRERROR
_GL_WARN_ON_USE (gai_strerror, "gai_strerror is unportable - "
"use gnulib module getaddrinfo for portability");
# endif
# undef getnameinfo
# if HAVE_RAW_DECL_GETNAMEINFO
_GL_WARN_ON_USE (getnameinfo, "getnameinfo is unportable - "
"use gnulib module getaddrinfo for portability");
# endif
#endif
#endif /* _@GUARD_PREFIX@_NETDB_H */
#endif /* _@GUARD_PREFIX@_NETDB_H */
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