usr/include/sys/socket.h000064400000023733147205203000011260 0ustar00/* Declarations of socket constants, types, and functions. Copyright (C) 1991-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library 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. The GNU C Library 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 the GNU C Library; if not, see . */ #ifndef _SYS_SOCKET_H #define _SYS_SOCKET_H 1 #include __BEGIN_DECLS #include #define __need_size_t #include /* This operating system-specific header file defines the SOCK_*, PF_*, AF_*, MSG_*, SOL_*, and SO_* constants, and the `struct sockaddr', `struct msghdr', and `struct linger' types. */ #include #ifdef __USE_MISC # include #endif /* The following constants should be used for the second parameter of `shutdown'. */ enum { SHUT_RD = 0, /* No more receptions. */ #define SHUT_RD SHUT_RD SHUT_WR, /* No more transmissions. */ #define SHUT_WR SHUT_WR SHUT_RDWR /* No more receptions or transmissions. */ #define SHUT_RDWR SHUT_RDWR }; /* This is the type we use for generic socket address arguments. With GCC 2.7 and later, the funky union causes redeclarations or uses with any of the listed types to be allowed without complaint. G++ 2.7 does not support transparent unions so there we want the old-style declaration, too. */ #if defined __cplusplus || !__GNUC_PREREQ (2, 7) || !defined __USE_GNU # define __SOCKADDR_ARG struct sockaddr *__restrict # define __CONST_SOCKADDR_ARG const struct sockaddr * #else /* Add more `struct sockaddr_AF' types here as necessary. These are all the ones I found on NetBSD and Linux. */ # define __SOCKADDR_ALLTYPES \ __SOCKADDR_ONETYPE (sockaddr) \ __SOCKADDR_ONETYPE (sockaddr_at) \ __SOCKADDR_ONETYPE (sockaddr_ax25) \ __SOCKADDR_ONETYPE (sockaddr_dl) \ __SOCKADDR_ONETYPE (sockaddr_eon) \ __SOCKADDR_ONETYPE (sockaddr_in) \ __SOCKADDR_ONETYPE (sockaddr_in6) \ __SOCKADDR_ONETYPE (sockaddr_inarp) \ __SOCKADDR_ONETYPE (sockaddr_ipx) \ __SOCKADDR_ONETYPE (sockaddr_iso) \ __SOCKADDR_ONETYPE (sockaddr_ns) \ __SOCKADDR_ONETYPE (sockaddr_un) \ __SOCKADDR_ONETYPE (sockaddr_x25) # define __SOCKADDR_ONETYPE(type) struct type *__restrict __##type##__; typedef union { __SOCKADDR_ALLTYPES } __SOCKADDR_ARG __attribute__ ((__transparent_union__)); # undef __SOCKADDR_ONETYPE # define __SOCKADDR_ONETYPE(type) const struct type *__restrict __##type##__; typedef union { __SOCKADDR_ALLTYPES } __CONST_SOCKADDR_ARG __attribute__ ((__transparent_union__)); # undef __SOCKADDR_ONETYPE #endif #ifdef __USE_GNU /* For `recvmmsg' and `sendmmsg'. */ struct mmsghdr { struct msghdr msg_hdr; /* Actual message header. */ unsigned int msg_len; /* Number of received or sent bytes for the entry. */ }; #endif /* Create a new socket of type TYPE in domain DOMAIN, using protocol PROTOCOL. If PROTOCOL is zero, one is chosen automatically. Returns a file descriptor for the new socket, or -1 for errors. */ extern int socket (int __domain, int __type, int __protocol) __THROW; /* Create two new sockets, of type TYPE in domain DOMAIN and using protocol PROTOCOL, which are connected to each other, and put file descriptors for them in FDS[0] and FDS[1]. If PROTOCOL is zero, one will be chosen automatically. Returns 0 on success, -1 for errors. */ extern int socketpair (int __domain, int __type, int __protocol, int __fds[2]) __THROW; /* Give the socket FD the local address ADDR (which is LEN bytes long). */ extern int bind (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len) __THROW; /* Put the local address of FD into *ADDR and its length in *LEN. */ extern int getsockname (int __fd, __SOCKADDR_ARG __addr, socklen_t *__restrict __len) __THROW; /* Open a connection on socket FD to peer at ADDR (which LEN bytes long). For connectionless socket types, just set the default address to send to and the only address from which to accept transmissions. Return 0 on success, -1 for errors. This function is a cancellation point and therefore not marked with __THROW. */ extern int connect (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len); /* Put the address of the peer connected to socket FD into *ADDR (which is *LEN bytes long), and its actual length into *LEN. */ extern int getpeername (int __fd, __SOCKADDR_ARG __addr, socklen_t *__restrict __len) __THROW; /* Send N bytes of BUF to socket FD. Returns the number sent or -1. This function is a cancellation point and therefore not marked with __THROW. */ extern ssize_t send (int __fd, const void *__buf, size_t __n, int __flags); /* Read N bytes into BUF from socket FD. Returns the number read or -1 for errors. This function is a cancellation point and therefore not marked with __THROW. */ extern ssize_t recv (int __fd, void *__buf, size_t __n, int __flags); /* Send N bytes of BUF on socket FD to peer at address ADDR (which is ADDR_LEN bytes long). Returns the number sent, or -1 for errors. This function is a cancellation point and therefore not marked with __THROW. */ extern ssize_t sendto (int __fd, const void *__buf, size_t __n, int __flags, __CONST_SOCKADDR_ARG __addr, socklen_t __addr_len); /* Read N bytes into BUF through socket FD. If ADDR is not NULL, fill in *ADDR_LEN bytes of it with tha address of the sender, and store the actual size of the address in *ADDR_LEN. Returns the number of bytes read or -1 for errors. This function is a cancellation point and therefore not marked with __THROW. */ extern ssize_t recvfrom (int __fd, void *__restrict __buf, size_t __n, int __flags, __SOCKADDR_ARG __addr, socklen_t *__restrict __addr_len); /* Send a message described MESSAGE on socket FD. Returns the number of bytes sent, or -1 for errors. This function is a cancellation point and therefore not marked with __THROW. */ extern ssize_t sendmsg (int __fd, const struct msghdr *__message, int __flags); #ifdef __USE_GNU /* Send a VLEN messages as described by VMESSAGES to socket FD. Returns the number of datagrams successfully written or -1 for errors. This function is a cancellation point and therefore not marked with __THROW. */ extern int sendmmsg (int __fd, struct mmsghdr *__vmessages, unsigned int __vlen, int __flags); #endif /* Receive a message as described by MESSAGE from socket FD. Returns the number of bytes read or -1 for errors. This function is a cancellation point and therefore not marked with __THROW. */ extern ssize_t recvmsg (int __fd, struct msghdr *__message, int __flags); #ifdef __USE_GNU /* Receive up to VLEN messages as described by VMESSAGES from socket FD. Returns the number of messages received or -1 for errors. This function is a cancellation point and therefore not marked with __THROW. */ extern int recvmmsg (int __fd, struct mmsghdr *__vmessages, unsigned int __vlen, int __flags, struct timespec *__tmo); #endif /* Put the current value for socket FD's option OPTNAME at protocol level LEVEL into OPTVAL (which is *OPTLEN bytes long), and set *OPTLEN to the value's actual length. Returns 0 on success, -1 for errors. */ extern int getsockopt (int __fd, int __level, int __optname, void *__restrict __optval, socklen_t *__restrict __optlen) __THROW; /* Set socket FD's option OPTNAME at protocol level LEVEL to *OPTVAL (which is OPTLEN bytes long). Returns 0 on success, -1 for errors. */ extern int setsockopt (int __fd, int __level, int __optname, const void *__optval, socklen_t __optlen) __THROW; /* Prepare to accept connections on socket FD. N connection requests will be queued before further requests are refused. Returns 0 on success, -1 for errors. */ extern int listen (int __fd, int __n) __THROW; /* Await a connection on socket FD. When a connection arrives, open a new socket to communicate with it, set *ADDR (which is *ADDR_LEN bytes long) to the address of the connecting peer and *ADDR_LEN to the address's actual length, and return the new socket's descriptor, or -1 for errors. This function is a cancellation point and therefore not marked with __THROW. */ extern int accept (int __fd, __SOCKADDR_ARG __addr, socklen_t *__restrict __addr_len); #ifdef __USE_GNU /* Similar to 'accept' but takes an additional parameter to specify flags. This function is a cancellation point and therefore not marked with __THROW. */ extern int accept4 (int __fd, __SOCKADDR_ARG __addr, socklen_t *__restrict __addr_len, int __flags); #endif /* Shut down all or part of the connection open on socket FD. HOW determines what to shut down: SHUT_RD = No more receptions; SHUT_WR = No more transmissions; SHUT_RDWR = No more receptions or transmissions. Returns 0 on success, -1 for errors. */ extern int shutdown (int __fd, int __how) __THROW; #ifdef __USE_XOPEN2K /* Determine wheter socket is at a out-of-band mark. */ extern int sockatmark (int __fd) __THROW; #endif #ifdef __USE_MISC /* FDTYPE is S_IFSOCK or another S_IF* macro defined in ; returns 1 if FD is open on an object of the indicated type, 0 if not, or -1 for errors (setting errno). */ extern int isfdtype (int __fd, int __fdtype) __THROW; #endif /* Define some macros helping to catch buffer overflows. */ #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function # include #endif __END_DECLS #endif /* sys/socket.h */ usr/include/asm-generic/socket.h000064400000004651147205324650012651 0ustar00/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __ASM_GENERIC_SOCKET_H #define __ASM_GENERIC_SOCKET_H #include /* For setsockopt(2) */ #define SOL_SOCKET 1 #define SO_DEBUG 1 #define SO_REUSEADDR 2 #define SO_TYPE 3 #define SO_ERROR 4 #define SO_DONTROUTE 5 #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 #define SO_SNDBUFFORCE 32 #define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 #define SO_PRIORITY 12 #define SO_LINGER 13 #define SO_BSDCOMPAT 14 #define SO_REUSEPORT 15 #ifndef SO_PASSCRED /* powerpc only differs in these */ #define SO_PASSCRED 16 #define SO_PEERCRED 17 #define SO_RCVLOWAT 18 #define SO_SNDLOWAT 19 #define SO_RCVTIMEO 20 #define SO_SNDTIMEO 21 #endif /* Security levels - as per NRL IPv6 - don't actually do anything */ #define SO_SECURITY_AUTHENTICATION 22 #define SO_SECURITY_ENCRYPTION_TRANSPORT 23 #define SO_SECURITY_ENCRYPTION_NETWORK 24 #define SO_BINDTODEVICE 25 /* Socket filtering */ #define SO_ATTACH_FILTER 26 #define SO_DETACH_FILTER 27 #define SO_GET_FILTER SO_ATTACH_FILTER #define SO_PEERNAME 28 #define SO_TIMESTAMP 29 #define SCM_TIMESTAMP SO_TIMESTAMP #define SO_ACCEPTCONN 30 #define SO_PEERSEC 31 #define SO_PASSSEC 34 #define SO_TIMESTAMPNS 35 #define SCM_TIMESTAMPNS SO_TIMESTAMPNS #define SO_MARK 36 #define SO_TIMESTAMPING 37 #define SCM_TIMESTAMPING SO_TIMESTAMPING #define SO_PROTOCOL 38 #define SO_DOMAIN 39 #define SO_RXQ_OVFL 40 #define SO_WIFI_STATUS 41 #define SCM_WIFI_STATUS SO_WIFI_STATUS #define SO_PEEK_OFF 42 /* Instruct lower device to use last 4-bytes of skb data as FCS */ #define SO_NOFCS 43 #define SO_LOCK_FILTER 44 #define SO_SELECT_ERR_QUEUE 45 #define SO_BUSY_POLL 46 #define SO_MAX_PACING_RATE 47 #define SO_BPF_EXTENSIONS 48 #define SO_INCOMING_CPU 49 #define SO_ATTACH_BPF 50 #define SO_DETACH_BPF SO_DETACH_FILTER #define SO_ATTACH_REUSEPORT_CBPF 51 #define SO_ATTACH_REUSEPORT_EBPF 52 #define SO_CNX_ADVICE 53 #define SCM_TIMESTAMPING_OPT_STATS 54 #define SO_MEMINFO 55 #define SO_INCOMING_NAPI_ID 56 #define SO_COOKIE 57 #define SCM_TIMESTAMPING_PKTINFO 58 #define SO_PEERGROUPS 59 #define SO_ZEROCOPY 60 #define SO_TXTIME 61 #define SCM_TXTIME SO_TXTIME #define SO_BINDTOIFINDEX 62 #define SO_DETACH_REUSEPORT_BPF 68 #define SO_PREFER_BUSY_POLL 69 #define SO_BUSY_POLL_BUDGET 70 #endif /* __ASM_GENERIC_SOCKET_H */