| /* Provide a netdb.h header file for systems lacking it (read: MinGW). |
| Copyright (C) 2008-2021 Free Software Foundation, Inc. |
| Written by Simon Josefsson. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| This program 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 General Public License for more details. |
| |
| You should have received a copy of the GNU 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 |
| |
| /* 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 */ |
