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Diffstat (limited to '')
| -rw-r--r-- | lib/sys_socket.in.h | 734 |
1 files changed, 734 insertions, 0 deletions
diff --git a/lib/sys_socket.in.h b/lib/sys_socket.in.h new file mode 100644 index 0000000..acdf7ee --- /dev/null +++ b/lib/sys_socket.in.h @@ -0,0 +1,734 @@ +/* Provide a sys/socket header file for systems lacking it (read: MinGW) + and for systems where it is incomplete. + Copyright (C) 2005-2022 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 <sys/socket.h>, + on platforms where <sys/socket.h> cannot be included standalone, and on + platforms where <sys/socket.h> does not provide all necessary definitions. + It is intended to provide definitions and prototypes needed by an + application. */ + +#if __GNUC__ >= 3 +@PRAGMA_SYSTEM_HEADER@ +#endif +@PRAGMA_COLUMNS@ + +#if defined _GL_ALREADY_INCLUDING_SYS_SOCKET_H +/* Special invocation convention: + - On Cygwin 1.5.x we have a sequence of nested includes + <sys/socket.h> -> <cygwin/socket.h> -> <asm/socket.h> -> <cygwin/if.h>, + and the latter includes <sys/socket.h>. In this situation, the functions + are not yet declared, therefore we cannot provide the C++ aliases. */ + +#@INCLUDE_NEXT@ @NEXT_SYS_SOCKET_H@ + +#else +/* Normal invocation convention. */ + +#ifndef _@GUARD_PREFIX@_SYS_SOCKET_H + +#if @HAVE_SYS_SOCKET_H@ + +# define _GL_ALREADY_INCLUDING_SYS_SOCKET_H + +/* On many platforms, <sys/socket.h> assumes prior inclusion of + <sys/types.h>. */ +# include <sys/types.h> + +/* On FreeBSD 6.4, <sys/socket.h> defines some macros that assume that NULL + is defined. */ +# include <stddef.h> + +/* The include_next requires a split double-inclusion guard. */ +# @INCLUDE_NEXT@ @NEXT_SYS_SOCKET_H@ + +# undef _GL_ALREADY_INCLUDING_SYS_SOCKET_H + +#endif + +#ifndef _@GUARD_PREFIX@_SYS_SOCKET_H +#define _@GUARD_PREFIX@_SYS_SOCKET_H + +#ifndef _GL_INLINE_HEADER_BEGIN + #error "Please include config.h first." +#endif +_GL_INLINE_HEADER_BEGIN +#ifndef _GL_SYS_SOCKET_INLINE +# define _GL_SYS_SOCKET_INLINE _GL_INLINE +#endif + +/* 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. */ + +#if !@HAVE_SA_FAMILY_T@ +# if !GNULIB_defined_sa_family_t +/* On OS/2 kLIBC, sa_family_t is unsigned char unless TCPV40HDRS is defined. */ +# if !defined __KLIBC__ || defined TCPV40HDRS +typedef unsigned short sa_family_t; +# else +typedef unsigned char sa_family_t; +# endif +# define GNULIB_defined_sa_family_t 1 +# endif +#endif + +#if @HAVE_STRUCT_SOCKADDR_STORAGE@ +/* Make the 'struct sockaddr_storage' field 'ss_family' visible on AIX 7.1. */ +# if !@HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY@ +# ifndef ss_family +# define ss_family __ss_family +# endif +# endif +#else +# include <stdalign.h> +/* Code taken from glibc sysdeps/unix/sysv/linux/bits/socket.h on + 2009-05-08, licensed under LGPLv2.1+, plus portability fixes. */ +# define __ss_aligntype unsigned long int +# define _SS_SIZE 256 +# define _SS_PADSIZE \ + (_SS_SIZE - ((sizeof (sa_family_t) >= alignof (__ss_aligntype) \ + ? sizeof (sa_family_t) \ + : alignof (__ss_aligntype)) \ + + sizeof (__ss_aligntype))) + +# if !GNULIB_defined_struct_sockaddr_storage +struct sockaddr_storage +{ + sa_family_t ss_family; /* Address family, etc. */ + __ss_aligntype __ss_align; /* Force desired alignment. */ + char __ss_padding[_SS_PADSIZE]; +}; +# define GNULIB_defined_struct_sockaddr_storage 1 +# endif + +#endif + +/* Get struct iovec. */ +/* But avoid namespace pollution on glibc systems. */ +#if ! defined __GLIBC__ +# include <sys/uio.h> +#endif + +#if @HAVE_SYS_SOCKET_H@ + +/* A platform that has <sys/socket.h>. */ + +/* For shutdown(). */ +# if !defined SHUT_RD +# define SHUT_RD 0 +# endif +# if !defined SHUT_WR +# define SHUT_WR 1 +# endif +# if !defined SHUT_RDWR +# define SHUT_RDWR 2 +# endif + +# ifdef __VMS /* OpenVMS */ +# ifndef CMSG_SPACE +# define CMSG_SPACE(length) _CMSG_SPACE(length) +# endif +# ifndef CMSG_LEN +# define CMSG_LEN(length) _CMSG_LEN(length) +# endif +# endif + +#else + +# ifdef __CYGWIN__ +# error "Cygwin does have a sys/socket.h, doesn't it?!?" +# endif + +/* A platform that lacks <sys/socket.h>. + + Currently only MinGW is supported. See the gnulib manual regarding + Windows sockets. MinGW has the header files winsock2.h and + ws2tcpip.h that declare the sys/socket.h definitions we need. Note + that you can influence which definitions you get by setting the + WINVER symbol before including these two files. For example, + getaddrinfo is only available if _WIN32_WINNT >= 0x0501 (that + symbol is set indirectly through WINVER). You can set this by + adding AC_DEFINE(WINVER, 0x0501) to configure.ac. Note that your + code may not run on older Windows releases then. My Windows 2000 + box was not able to run the code, for example. The situation is + slightly confusing because + <https://docs.microsoft.com/en-us/windows/desktop/api/ws2tcpip/nf-ws2tcpip-getaddrinfo> + suggests that getaddrinfo should be available on all Windows + releases. */ + +# if @HAVE_WINSOCK2_H@ +# include <winsock2.h> +# endif +# if @HAVE_WS2TCPIP_H@ +# include <ws2tcpip.h> +# endif + +/* For shutdown(). */ +# if !defined SHUT_RD && defined SD_RECEIVE +# define SHUT_RD SD_RECEIVE +# endif +# if !defined SHUT_WR && defined SD_SEND +# define SHUT_WR SD_SEND +# endif +# if !defined SHUT_RDWR && defined SD_BOTH +# define SHUT_RDWR SD_BOTH +# endif + +# if @HAVE_WINSOCK2_H@ +/* Include headers needed by the emulation code. */ +# include <sys/types.h> +# include <io.h> +/* If these headers don't define socklen_t, <config.h> does. */ +# endif + +/* Rudimentary 'struct msghdr'; this works as long as you don't try to + access msg_control or msg_controllen. */ +struct msghdr { + void *msg_name; + socklen_t msg_namelen; + struct iovec *msg_iov; + int msg_iovlen; + int msg_flags; +}; + +#endif + +/* Ensure SO_REUSEPORT is defined. */ +/* For the subtle differences between SO_REUSEPORT and SO_REUSEADDR, see + https://stackoverflow.com/questions/14388706/socket-options-so-reuseaddr-and-so-reuseport-how-do-they-differ-do-they-mean-t + and https://lwn.net/Articles/542629/ + */ +#ifndef SO_REUSEPORT +# define SO_REUSEPORT SO_REUSEADDR +#endif + +/* Fix some definitions from <winsock2.h>. */ + +#if @HAVE_WINSOCK2_H@ + +# if !GNULIB_defined_rpl_fd_isset + +/* Re-define FD_ISSET to avoid a WSA call while we are not using + network sockets. */ +_GL_SYS_SOCKET_INLINE int +rpl_fd_isset (SOCKET fd, fd_set * set) +{ + u_int i; + if (set == NULL) + return 0; + + for (i = 0; i < set->fd_count; i++) + if (set->fd_array[i] == fd) + return 1; + + return 0; +} + +# define GNULIB_defined_rpl_fd_isset 1 +# endif + +# undef FD_ISSET +# define FD_ISSET(fd, set) rpl_fd_isset(fd, set) + +#endif + +/* Hide some function declarations from <winsock2.h>. */ + +#if @HAVE_WINSOCK2_H@ +# if !defined _@GUARD_PREFIX@_UNISTD_H +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef close +# define close close_used_without_including_unistd_h +# elif !defined __clang__ + _GL_WARN_ON_USE (close, + "close() used without including <unistd.h>"); +# endif +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef gethostname +# define gethostname gethostname_used_without_including_unistd_h +# else + _GL_WARN_ON_USE (gethostname, + "gethostname() used without including <unistd.h>"); +# endif +# endif +# if !defined _@GUARD_PREFIX@_SYS_SELECT_H +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef select +# define select select_used_without_including_sys_select_h +# else + _GL_WARN_ON_USE (select, + "select() used without including <sys/select.h>"); +# endif +# endif +#endif + +/* Wrap everything else to use libc file descriptors for sockets. */ + +#if @GNULIB_SOCKET@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef socket +# define socket rpl_socket +# endif +_GL_FUNCDECL_RPL (socket, int, (int domain, int type, int protocol)); +_GL_CXXALIAS_RPL (socket, int, (int domain, int type, int protocol)); +# else +_GL_CXXALIAS_SYS (socket, int, (int domain, int type, int protocol)); +# endif +_GL_CXXALIASWARN (socket); +#elif @HAVE_WINSOCK2_H@ +# undef socket +# define socket socket_used_without_requesting_gnulib_module_socket +#elif defined GNULIB_POSIXCHECK +# undef socket +# if HAVE_RAW_DECL_SOCKET +_GL_WARN_ON_USE (socket, "socket is not always POSIX compliant - " + "use gnulib module socket for portability"); +# endif +#endif + +#if @GNULIB_CONNECT@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef connect +# define connect rpl_connect +# endif +_GL_FUNCDECL_RPL (connect, int, + (int fd, const struct sockaddr *addr, socklen_t addrlen) + _GL_ARG_NONNULL ((2))); +_GL_CXXALIAS_RPL (connect, int, + (int fd, const struct sockaddr *addr, socklen_t addrlen)); +# else +/* Need to cast, because on NonStop Kernel, the third parameter is + size_t addrlen. */ +_GL_CXXALIAS_SYS_CAST (connect, int, + (int fd, + const struct sockaddr *addr, socklen_t addrlen)); +# endif +_GL_CXXALIASWARN (connect); +#elif @HAVE_WINSOCK2_H@ +# undef connect +# define connect socket_used_without_requesting_gnulib_module_connect +#elif defined GNULIB_POSIXCHECK +# undef connect +# if HAVE_RAW_DECL_CONNECT +_GL_WARN_ON_USE (connect, "connect is not always POSIX compliant - " + "use gnulib module connect for portability"); +# endif +#endif + +#if @GNULIB_ACCEPT@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef accept +# define accept rpl_accept +# endif +_GL_FUNCDECL_RPL (accept, int, + (int fd, + struct sockaddr *restrict addr, + socklen_t *restrict addrlen)); +_GL_CXXALIAS_RPL (accept, int, + (int fd, + struct sockaddr *restrict addr, + socklen_t *restrict addrlen)); +# else +/* Need to cast, because on Solaris 10 systems, the third parameter is + void *addrlen. */ +_GL_CXXALIAS_SYS_CAST (accept, int, + (int fd, + struct sockaddr *restrict addr, + socklen_t *restrict addrlen)); +# endif +_GL_CXXALIASWARN (accept); +#elif @HAVE_WINSOCK2_H@ +# undef accept +# define accept accept_used_without_requesting_gnulib_module_accept +#elif defined GNULIB_POSIXCHECK +# undef accept +# if HAVE_RAW_DECL_ACCEPT +_GL_WARN_ON_USE (accept, "accept is not always POSIX compliant - " + "use gnulib module accept for portability"); +# endif +#endif + +#if @GNULIB_BIND@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef bind +# define bind rpl_bind +# endif +_GL_FUNCDECL_RPL (bind, int, + (int fd, const struct sockaddr *addr, socklen_t addrlen) + _GL_ARG_NONNULL ((2))); +_GL_CXXALIAS_RPL (bind, int, + (int fd, const struct sockaddr *addr, socklen_t addrlen)); +# else +/* Need to cast, because on NonStop Kernel, the third parameter is + size_t addrlen. */ +_GL_CXXALIAS_SYS_CAST (bind, int, + (int fd, + const struct sockaddr *addr, socklen_t addrlen)); +# endif +_GL_CXXALIASWARN (bind); +#elif @HAVE_WINSOCK2_H@ +# undef bind +# define bind bind_used_without_requesting_gnulib_module_bind +#elif defined GNULIB_POSIXCHECK +# undef bind +# if HAVE_RAW_DECL_BIND +_GL_WARN_ON_USE (bind, "bind is not always POSIX compliant - " + "use gnulib module bind for portability"); +# endif +#endif + +#if @GNULIB_GETPEERNAME@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef getpeername +# define getpeername rpl_getpeername +# endif +_GL_FUNCDECL_RPL (getpeername, int, + (int fd, struct sockaddr *restrict addr, + socklen_t *restrict addrlen) + _GL_ARG_NONNULL ((2, 3))); +_GL_CXXALIAS_RPL (getpeername, int, + (int fd, struct sockaddr *restrict addr, + socklen_t *restrict addrlen)); +# else +/* Need to cast, because on Solaris 10 systems, the third parameter is + void *addrlen. */ +_GL_CXXALIAS_SYS_CAST (getpeername, int, + (int fd, struct sockaddr *restrict addr, + socklen_t *restrict addrlen)); +# endif +_GL_CXXALIASWARN (getpeername); +#elif @HAVE_WINSOCK2_H@ +# undef getpeername +# define getpeername getpeername_used_without_requesting_gnulib_module_getpeername +#elif defined GNULIB_POSIXCHECK +# undef getpeername +# if HAVE_RAW_DECL_GETPEERNAME +_GL_WARN_ON_USE (getpeername, "getpeername is not always POSIX compliant - " + "use gnulib module getpeername for portability"); +# endif +#endif + +#if @GNULIB_GETSOCKNAME@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef getsockname +# define getsockname rpl_getsockname +# endif +_GL_FUNCDECL_RPL (getsockname, int, + (int fd, struct sockaddr *restrict addr, + socklen_t *restrict addrlen) + _GL_ARG_NONNULL ((2, 3))); +_GL_CXXALIAS_RPL (getsockname, int, + (int fd, struct sockaddr *restrict addr, + socklen_t *restrict addrlen)); +# else +/* Need to cast, because on Solaris 10 systems, the third parameter is + void *addrlen. */ +_GL_CXXALIAS_SYS_CAST (getsockname, int, + (int fd, struct sockaddr *restrict addr, + socklen_t *restrict addrlen)); +# endif +_GL_CXXALIASWARN (getsockname); +#elif @HAVE_WINSOCK2_H@ +# undef getsockname +# define getsockname getsockname_used_without_requesting_gnulib_module_getsockname +#elif defined GNULIB_POSIXCHECK +# undef getsockname +# if HAVE_RAW_DECL_GETSOCKNAME +_GL_WARN_ON_USE (getsockname, "getsockname is not always POSIX compliant - " + "use gnulib module getsockname for portability"); +# endif +#endif + +#if @GNULIB_GETSOCKOPT@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef getsockopt +# define getsockopt rpl_getsockopt +# endif +_GL_FUNCDECL_RPL (getsockopt, int, + (int fd, int level, int optname, + void *restrict optval, socklen_t *restrict optlen) + _GL_ARG_NONNULL ((4, 5))); +_GL_CXXALIAS_RPL (getsockopt, int, + (int fd, int level, int optname, + void *restrict optval, socklen_t *restrict optlen)); +# else +/* Need to cast, because on Solaris 10 systems, the fifth parameter is + void *optlen. */ +_GL_CXXALIAS_SYS_CAST (getsockopt, int, + (int fd, int level, int optname, + void *restrict optval, socklen_t *restrict optlen)); +# endif +_GL_CXXALIASWARN (getsockopt); +#elif @HAVE_WINSOCK2_H@ +# undef getsockopt +# define getsockopt getsockopt_used_without_requesting_gnulib_module_getsockopt +#elif defined GNULIB_POSIXCHECK +# undef getsockopt +# if HAVE_RAW_DECL_GETSOCKOPT +_GL_WARN_ON_USE (getsockopt, "getsockopt is not always POSIX compliant - " + "use gnulib module getsockopt for portability"); +# endif +#endif + +#if @GNULIB_LISTEN@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef listen +# define listen rpl_listen +# endif +_GL_FUNCDECL_RPL (listen, int, (int fd, int backlog)); +_GL_CXXALIAS_RPL (listen, int, (int fd, int backlog)); +# else +_GL_CXXALIAS_SYS (listen, int, (int fd, int backlog)); +# endif +_GL_CXXALIASWARN (listen); +#elif @HAVE_WINSOCK2_H@ +# undef listen +# define listen listen_used_without_requesting_gnulib_module_listen +#elif defined GNULIB_POSIXCHECK +# undef listen +# if HAVE_RAW_DECL_LISTEN +_GL_WARN_ON_USE (listen, "listen is not always POSIX compliant - " + "use gnulib module listen for portability"); +# endif +#endif + +#if @GNULIB_RECV@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef recv +# define recv rpl_recv +# endif +_GL_FUNCDECL_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags) + _GL_ARG_NONNULL ((2))); +_GL_CXXALIAS_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags)); +# else +/* Need to cast, because on HP-UX 11.31 the return type may be + int, + depending on compiler options. */ +_GL_CXXALIAS_SYS_CAST (recv, ssize_t, (int fd, void *buf, size_t len, int flags)); +# endif +_GL_CXXALIASWARN (recv); +#elif @HAVE_WINSOCK2_H@ +# undef recv +# define recv recv_used_without_requesting_gnulib_module_recv +#elif defined GNULIB_POSIXCHECK +# undef recv +# if HAVE_RAW_DECL_RECV +_GL_WARN_ON_USE (recv, "recv is not always POSIX compliant - " + "use gnulib module recv for portability"); +# endif +#endif + +#if @GNULIB_SEND@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef send +# define send rpl_send +# endif +_GL_FUNCDECL_RPL (send, ssize_t, + (int fd, const void *buf, size_t len, int flags) + _GL_ARG_NONNULL ((2))); +_GL_CXXALIAS_RPL (send, ssize_t, + (int fd, const void *buf, size_t len, int flags)); +# else +/* Need to cast, because on HP-UX 11.31 the return type may be + int, + depending on compiler options. */ +_GL_CXXALIAS_SYS_CAST (send, ssize_t, + (int fd, const void *buf, size_t len, int flags)); +# endif +_GL_CXXALIASWARN (send); +#elif @HAVE_WINSOCK2_H@ +# undef send +# define send send_used_without_requesting_gnulib_module_send +#elif defined GNULIB_POSIXCHECK +# undef send +# if HAVE_RAW_DECL_SEND +_GL_WARN_ON_USE (send, "send is not always POSIX compliant - " + "use gnulib module send for portability"); +# endif +#endif + +#if @GNULIB_RECVFROM@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef recvfrom +# define recvfrom rpl_recvfrom +# endif +_GL_FUNCDECL_RPL (recvfrom, ssize_t, + (int fd, void *restrict buf, size_t len, int flags, + struct sockaddr *restrict from, + socklen_t *restrict fromlen) + _GL_ARG_NONNULL ((2))); +_GL_CXXALIAS_RPL (recvfrom, ssize_t, + (int fd, void *restrict buf, size_t len, int flags, + struct sockaddr *restrict from, + socklen_t *restrict fromlen)); +# else +/* Need to cast, because on Solaris 10 systems, the sixth parameter is + void *fromlen. */ +_GL_CXXALIAS_SYS_CAST (recvfrom, ssize_t, + (int fd, void *restrict buf, size_t len, int flags, + struct sockaddr *restrict from, + socklen_t *restrict fromlen)); +# endif +_GL_CXXALIASWARN (recvfrom); +#elif @HAVE_WINSOCK2_H@ +# undef recvfrom +# define recvfrom recvfrom_used_without_requesting_gnulib_module_recvfrom +#elif defined GNULIB_POSIXCHECK +# undef recvfrom +# if HAVE_RAW_DECL_RECVFROM +_GL_WARN_ON_USE (recvfrom, "recvfrom is not always POSIX compliant - " + "use gnulib module recvfrom for portability"); +# endif +#endif + +#if @GNULIB_SENDTO@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef sendto +# define sendto rpl_sendto +# endif +_GL_FUNCDECL_RPL (sendto, ssize_t, + (int fd, const void *buf, size_t len, int flags, + const struct sockaddr *to, socklen_t tolen) + _GL_ARG_NONNULL ((2))); +_GL_CXXALIAS_RPL (sendto, ssize_t, + (int fd, const void *buf, size_t len, int flags, + const struct sockaddr *to, socklen_t tolen)); +# else +/* Need to cast, because on NonStop Kernel, the sixth parameter is + size_t tolen. */ +_GL_CXXALIAS_SYS_CAST (sendto, ssize_t, + (int fd, const void *buf, size_t len, int flags, + const struct sockaddr *to, socklen_t tolen)); +# endif +_GL_CXXALIASWARN (sendto); +#elif @HAVE_WINSOCK2_H@ +# undef sendto +# define sendto sendto_used_without_requesting_gnulib_module_sendto +#elif defined GNULIB_POSIXCHECK +# undef sendto +# if HAVE_RAW_DECL_SENDTO +_GL_WARN_ON_USE (sendto, "sendto is not always POSIX compliant - " + "use gnulib module sendto for portability"); +# endif +#endif + +#if @GNULIB_SETSOCKOPT@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef setsockopt +# define setsockopt rpl_setsockopt +# endif +_GL_FUNCDECL_RPL (setsockopt, int, (int fd, int level, int optname, + const void * optval, socklen_t optlen) + _GL_ARG_NONNULL ((4))); +_GL_CXXALIAS_RPL (setsockopt, int, (int fd, int level, int optname, + const void * optval, socklen_t optlen)); +# else +/* Need to cast, because on NonStop Kernel, the fifth parameter is + size_t optlen. */ +_GL_CXXALIAS_SYS_CAST (setsockopt, int, + (int fd, int level, int optname, + const void * optval, socklen_t optlen)); +# endif +_GL_CXXALIASWARN (setsockopt); +#elif @HAVE_WINSOCK2_H@ +# undef setsockopt +# define setsockopt setsockopt_used_without_requesting_gnulib_module_setsockopt +#elif defined GNULIB_POSIXCHECK +# undef setsockopt +# if HAVE_RAW_DECL_SETSOCKOPT +_GL_WARN_ON_USE (setsockopt, "setsockopt is not always POSIX compliant - " + "use gnulib module setsockopt for portability"); +# endif +#endif + +#if @GNULIB_SHUTDOWN@ +# if @HAVE_WINSOCK2_H@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef shutdown +# define shutdown rpl_shutdown +# endif +_GL_FUNCDECL_RPL (shutdown, int, (int fd, int how)); +_GL_CXXALIAS_RPL (shutdown, int, (int fd, int how)); +# else +_GL_CXXALIAS_SYS (shutdown, int, (int fd, int how)); +# endif +_GL_CXXALIASWARN (shutdown); +#elif @HAVE_WINSOCK2_H@ +# undef shutdown +# define shutdown shutdown_used_without_requesting_gnulib_module_shutdown +#elif defined GNULIB_POSIXCHECK +# undef shutdown +# if HAVE_RAW_DECL_SHUTDOWN +_GL_WARN_ON_USE (shutdown, "shutdown is not always POSIX compliant - " + "use gnulib module shutdown for portability"); +# endif +#endif + +#if @GNULIB_ACCEPT4@ +/* Accept a connection on a socket, with specific opening flags. + The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>) + and O_TEXT, O_BINARY (defined in "binary-io.h"). + See also the Linux man page at + <https://www.kernel.org/doc/man-pages/online/pages/man2/accept4.2.html>. */ +# if @HAVE_ACCEPT4@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# define accept4 rpl_accept4 +# endif +_GL_FUNCDECL_RPL (accept4, int, + (int sockfd, struct sockaddr *addr, socklen_t *addrlen, + int flags)); +_GL_CXXALIAS_RPL (accept4, int, + (int sockfd, struct sockaddr *addr, socklen_t *addrlen, + int flags)); +# else +_GL_FUNCDECL_SYS (accept4, int, + (int sockfd, struct sockaddr *addr, socklen_t *addrlen, + int flags)); +_GL_CXXALIAS_SYS (accept4, int, + (int sockfd, struct sockaddr *addr, socklen_t *addrlen, + int flags)); +# endif +_GL_CXXALIASWARN (accept4); +#elif defined GNULIB_POSIXCHECK +# undef accept4 +# if HAVE_RAW_DECL_ACCEPT4 +_GL_WARN_ON_USE (accept4, "accept4 is unportable - " + "use gnulib module accept4 for portability"); +# endif +#endif + +_GL_INLINE_HEADER_END + +#endif /* _@GUARD_PREFIX@_SYS_SOCKET_H */ +#endif /* _@GUARD_PREFIX@_SYS_SOCKET_H */ +#endif |