/* Provide a sys/socket header file for systems lacking it (read: MinGW)
and for systems where it is incomplete.
- Copyright (C) 2005-2009 Free Software Foundation, Inc.
+ Copyright (C) 2005-2010 Free Software Foundation, Inc.
Written by Simon Josefsson.
This program is free software; you can redistribute it and/or modify
#ifndef _GL_SYS_SOCKET_H
#define _GL_SYS_SOCKET_H
+/* The definition of _GL_ARG_NONNULL is copied here. */
+
+#if !@HAVE_SA_FAMILY_T@
+typedef unsigned short sa_family_t;
+#endif
+
+#if !@HAVE_STRUCT_SOCKADDR_STORAGE@
+# include <alignof.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)))
+
+struct sockaddr_storage
+{
+ sa_family_t ss_family; /* Address family, etc. */
+ __ss_aligntype __ss_align; /* Force desired alignment. */
+ char __ss_padding[_SS_PADSIZE];
+};
+#endif
+
#if @HAVE_SYS_SOCKET_H@
/* A platform that has <sys/socket.h>. */
# define SHUT_RDWR SD_BOTH
# endif
-/* The definition of GL_LINK_WARNING is copied here. */
+/* The definition of _GL_WARN_ON_USE is copied here. */
# if @HAVE_WINSOCK2_H@
/* Include headers needed by the emulation code. */
# if @GNULIB_SOCKET@
# if @HAVE_WINSOCK2_H@
# undef socket
-# define socket rpl_socket
+# define socket rpl_socket
extern int rpl_socket (int, int, int protocol);
# endif
# elif @HAVE_WINSOCK2_H@
# define socket socket_used_without_requesting_gnulib_module_socket
# elif defined GNULIB_POSIXCHECK
# undef socket
-# define socket(d,t,p) \
- (GL_LINK_WARNING ("socket is not always POSIX compliant - " \
- "use gnulib module socket for portability"), \
- socket (d, t, p))
+# 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@
# undef connect
-# define connect rpl_connect
-extern int rpl_connect (int, struct sockaddr *, int);
+# define connect rpl_connect
+extern int rpl_connect (int, struct sockaddr *, int) _GL_ARG_NONNULL ((2));
# endif
# elif @HAVE_WINSOCK2_H@
# undef connect
# define connect socket_used_without_requesting_gnulib_module_connect
# elif defined GNULIB_POSIXCHECK
# undef connect
-# define connect(s,a,l) \
- (GL_LINK_WARNING ("connect is not always POSIX compliant - " \
- "use gnulib module connect for portability"), \
- connect (s, a, l))
+# 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@
# undef accept
-# define accept rpl_accept
+# define accept rpl_accept
extern int rpl_accept (int, struct sockaddr *, int *);
# endif
# elif @HAVE_WINSOCK2_H@
# define accept accept_used_without_requesting_gnulib_module_accept
# elif defined GNULIB_POSIXCHECK
# undef accept
-# define accept(s,a,l) \
- (GL_LINK_WARNING ("accept is not always POSIX compliant - " \
- "use gnulib module accept for portability"), \
- accept (s, a, l))
+# 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@
# undef bind
-# define bind rpl_bind
-extern int rpl_bind (int, struct sockaddr *, int);
+# define bind rpl_bind
+extern int rpl_bind (int, struct sockaddr *, int) _GL_ARG_NONNULL ((2));
# endif
# elif @HAVE_WINSOCK2_H@
# undef bind
# define bind bind_used_without_requesting_gnulib_module_bind
# elif defined GNULIB_POSIXCHECK
# undef bind
-# define bind(s,a,l) \
- (GL_LINK_WARNING ("bind is not always POSIX compliant - " \
- "use gnulib module bind for portability"), \
- bind (s, a, l))
+# 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@
# undef getpeername
-# define getpeername rpl_getpeername
-extern int rpl_getpeername (int, struct sockaddr *, int *);
+# define getpeername rpl_getpeername
+extern int rpl_getpeername (int, struct sockaddr *, int *)
+ _GL_ARG_NONNULL ((2, 3));
# endif
# elif @HAVE_WINSOCK2_H@
# undef getpeername
# define getpeername getpeername_used_without_requesting_gnulib_module_getpeername
# elif defined GNULIB_POSIXCHECK
# undef getpeername
-# define getpeername(s,a,l) \
- (GL_LINK_WARNING ("getpeername is not always POSIX compliant - " \
- "use gnulib module getpeername for portability"), \
- getpeername (s, a, l))
+# 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@
# undef getsockname
-# define getsockname rpl_getsockname
-extern int rpl_getsockname (int, struct sockaddr *, int *);
+# define getsockname rpl_getsockname
+extern int rpl_getsockname (int, struct sockaddr *, int *)
+ _GL_ARG_NONNULL ((2, 3));
# endif
# elif @HAVE_WINSOCK2_H@
# undef getsockname
# define getsockname getsockname_used_without_requesting_gnulib_module_getsockname
# elif defined GNULIB_POSIXCHECK
# undef getsockname
-# define getsockname(s,a,l) \
- (GL_LINK_WARNING ("getsockname is not always POSIX compliant - " \
- "use gnulib module getsockname for portability"), \
- getsockname (s, a, l))
+# 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@
# undef getsockopt
-# define getsockopt rpl_getsockopt
-extern int rpl_getsockopt (int, int, int, void *, socklen_t *);
+# define getsockopt rpl_getsockopt
+extern int rpl_getsockopt (int, int, int, void *, socklen_t *)
+ _GL_ARG_NONNULL ((4, 5));
# endif
# elif @HAVE_WINSOCK2_H@
# undef getsockopt
# define getsockopt getsockopt_used_without_requesting_gnulib_module_getsockopt
# elif defined GNULIB_POSIXCHECK
# undef getsockopt
-# define getsockopt(s,lvl,o,v,l) \
- (GL_LINK_WARNING ("getsockopt is not always POSIX compliant - " \
- "use gnulib module getsockopt for portability"), \
- getsockopt (s, lvl, o, v, l))
+# 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@
# undef listen
-# define listen rpl_listen
+# define listen rpl_listen
extern int rpl_listen (int, int);
# endif
# elif @HAVE_WINSOCK2_H@
# define listen listen_used_without_requesting_gnulib_module_listen
# elif defined GNULIB_POSIXCHECK
# undef listen
-# define listen(s,b) \
- (GL_LINK_WARNING ("listen is not always POSIX compliant - " \
- "use gnulib module listen for portability"), \
- listen (s, b))
+# 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@
# undef recv
-# define recv rpl_recv
-extern int rpl_recv (int, void *, int, int);
+# define recv rpl_recv
+extern int rpl_recv (int, void *, int, int) _GL_ARG_NONNULL ((2));
# endif
# elif @HAVE_WINSOCK2_H@
# undef recv
# define recv recv_used_without_requesting_gnulib_module_recv
# elif defined GNULIB_POSIXCHECK
# undef recv
-# define recv(s,b,n,f) \
- (GL_LINK_WARNING ("recv is not always POSIX compliant - " \
- "use gnulib module recv for portability"), \
- recv (s, b, n, f))
+# 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@
# undef send
-# define send rpl_send
-extern int rpl_send (int, const void *, int, int);
+# define send rpl_send
+extern int rpl_send (int, const void *, int, int) _GL_ARG_NONNULL ((2));
# endif
# elif @HAVE_WINSOCK2_H@
# undef send
# define send send_used_without_requesting_gnulib_module_send
# elif defined GNULIB_POSIXCHECK
# undef send
-# define send(s,b,n,f) \
- (GL_LINK_WARNING ("send is not always POSIX compliant - " \
- "use gnulib module send for portability"), \
- send (s, b, n, f))
+# 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@
# undef recvfrom
-# define recvfrom rpl_recvfrom
-extern int rpl_recvfrom (int, void *, int, int, struct sockaddr *, int *);
+# define recvfrom rpl_recvfrom
+extern int rpl_recvfrom (int, void *, int, int, struct sockaddr *, int *)
+ _GL_ARG_NONNULL ((2));
# endif
# elif @HAVE_WINSOCK2_H@
# undef recvfrom
# define recvfrom recvfrom_used_without_requesting_gnulib_module_recvfrom
# elif defined GNULIB_POSIXCHECK
# undef recvfrom
-# define recvfrom(s,b,n,f,a,l) \
- (GL_LINK_WARNING ("recvfrom is not always POSIX compliant - " \
- "use gnulib module recvfrom for portability"), \
- recvfrom (s, b, n, f, a, l))
+# 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@
# undef sendto
-# define sendto rpl_sendto
-extern int rpl_sendto (int, const void *, int, int, struct sockaddr *, int);
+# define sendto rpl_sendto
+extern int rpl_sendto (int, const void *, int, int, struct sockaddr *, int)
+ _GL_ARG_NONNULL ((2));
# endif
# elif @HAVE_WINSOCK2_H@
# undef sendto
# define sendto sendto_used_without_requesting_gnulib_module_sendto
# elif defined GNULIB_POSIXCHECK
# undef sendto
-# define sendto(s,b,n,f,a,l) \
- (GL_LINK_WARNING ("sendto is not always POSIX compliant - " \
- "use gnulib module sendto for portability"), \
- sendto (s, b, n, f, a, l))
+# 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@
# undef setsockopt
-# define setsockopt rpl_setsockopt
-extern int rpl_setsockopt (int, int, int, const void *, socklen_t);
+# define setsockopt rpl_setsockopt
+extern int rpl_setsockopt (int, int, int, const void *, socklen_t)
+ _GL_ARG_NONNULL ((4));
# endif
# elif @HAVE_WINSOCK2_H@
# undef setsockopt
# define setsockopt setsockopt_used_without_requesting_gnulib_module_setsockopt
# elif defined GNULIB_POSIXCHECK
# undef setsockopt
-# define setsockopt(s,lvl,o,v,l) \
- (GL_LINK_WARNING ("setsockopt is not always POSIX compliant - " \
- "use gnulib module setsockopt for portability"), \
- setsockopt (s, lvl, o, v, l))
+# 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@
# undef shutdown
-# define shutdown rpl_shutdown
+# define shutdown rpl_shutdown
extern int rpl_shutdown (int, int);
# endif
# elif @HAVE_WINSOCK2_H@
# define shutdown shutdown_used_without_requesting_gnulib_module_shutdown
# elif defined GNULIB_POSIXCHECK
# undef shutdown
-# define shutdown(s,h) \
- (GL_LINK_WARNING ("shutdown is not always POSIX compliant - " \
- "use gnulib module shutdown for portability"), \
- shutdown (s, h))
+# 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 @HAVE_WINSOCK2_H@
# undef select
-# define select select_used_without_including_sys_select_h
+# define select select_used_without_including_sys_select_h
# endif
# ifdef __cplusplus
#endif /* HAVE_SYS_SOCKET_H */
+#ifdef __cplusplus
+extern "C" {
+#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
+ <http://www.kernel.org/doc/man-pages/online/pages/man2/accept4.2.html>. */
+# if @HAVE_ACCEPT4@
+# define accept4 rpl_accept4
+# endif
+extern int accept4 (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
+ int flags);
+#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
+
+#ifdef __cplusplus
+}
+#endif
+
#endif /* _GL_SYS_SOCKET_H */
#endif /* _GL_SYS_SOCKET_H */