174 lines
4.2 KiB
C
174 lines
4.2 KiB
C
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <bits/stdint.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <sys/un.h>
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__BEGIN_DECLS
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#define AF_MASK 0xff
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#define AF_UNSPEC 0
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#define AF_LOCAL 1
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#define AF_UNIX AF_LOCAL
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#define AF_INET 2
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#define AF_INET6 3
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#define AF_MAX 4
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#define PF_LOCAL AF_LOCAL
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#define PF_UNIX PF_LOCAL
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#define PF_INET AF_INET
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#define PF_INET6 AF_INET6
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#define PF_UNSPEC AF_UNSPEC
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#define PF_MAX AF_MAX
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#define SOCK_TYPE_MASK 0xff
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#define SOCK_STREAM 1
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#define SOCK_DGRAM 2
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#define SOCK_RAW 3
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#define SOCK_NONBLOCK 04000
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#define SOCK_CLOEXEC 02000000
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#define SHUT_RD 1
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#define SHUT_WR 2
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#define SHUT_RDWR 3
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#define IPPROTO_IP 0
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#define IPPROTO_ICMP 1
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#define IPPROTO_TCP 6
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#define IPPROTO_UDP 17
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#define IPPROTO_IPV6 41
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#define MSG_TRUNC 0x1
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#define MSG_CTRUNC 0x2
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#define MSG_PEEK 0x4
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#define MSG_OOB 0x8
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#define MSG_DONTWAIT 0x40
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typedef uint16_t sa_family_t;
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struct cmsghdr {
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socklen_t cmsg_len;
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int cmsg_level;
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int cmsg_type;
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};
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struct msghdr {
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void* msg_name;
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socklen_t msg_namelen;
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struct iovec* msg_iov;
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int msg_iovlen;
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void* msg_control;
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socklen_t msg_controllen;
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int msg_flags;
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};
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struct sockaddr {
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sa_family_t sa_family;
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char sa_data[14];
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};
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struct ucred {
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pid_t pid;
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uid_t uid;
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gid_t gid;
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};
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#define SOL_SOCKET 1
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#define SOMAXCONN 128
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enum {
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SO_RCVTIMEO,
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SO_SNDTIMEO,
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SO_TYPE,
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SO_ERROR,
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SO_PEERCRED,
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SO_RCVBUF,
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SO_SNDBUF,
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SO_REUSEADDR,
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SO_BINDTODEVICE,
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SO_KEEPALIVE,
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SO_TIMESTAMP,
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SO_BROADCAST,
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};
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#define SO_RCVTIMEO SO_RCVTIMEO
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#define SO_SNDTIMEO SO_SNDTIMEO
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#define SO_TYPE SO_TYPE
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#define SO_ERROR SO_ERROR
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#define SO_PEERCRED SO_PEERCRED
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#define SO_REUSEADDR SO_REUSEADDR
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#define SO_BINDTODEVICE SO_BINDTODEVICE
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#define SO_KEEPALIVE SO_KEEPALIVE
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#define SO_TIMESTAMP SO_TIMESTAMP
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#define SO_BROADCAST SO_BROADCAST
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#define SO_SNDBUF SO_SNDBUF
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#define SO_RCVBUF SO_RCVBUF
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enum {
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SCM_TIMESTAMP,
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SCM_RIGHTS,
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};
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#define SCM_TIMESTAMP SCM_TIMESTAMP
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#define SCM_RIGHTS SCM_RIGHTS
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struct sockaddr_storage {
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sa_family_t ss_family;
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union {
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char data[sizeof(struct sockaddr_un)];
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void* alignment;
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};
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};
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int socket(int domain, int type, int protocol);
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int bind(int sockfd, const struct sockaddr* addr, socklen_t);
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int listen(int sockfd, int backlog);
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int accept(int sockfd, struct sockaddr*, socklen_t*);
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int accept4(int sockfd, struct sockaddr*, socklen_t*, int);
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int connect(int sockfd, const struct sockaddr*, socklen_t);
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int shutdown(int sockfd, int how);
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ssize_t send(int sockfd, const void*, size_t, int flags);
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ssize_t sendmsg(int sockfd, const struct msghdr*, int flags);
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ssize_t sendto(int sockfd, const void*, size_t, int flags, const struct sockaddr*, socklen_t);
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ssize_t recv(int sockfd, void*, size_t, int flags);
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ssize_t recvmsg(int sockfd, struct msghdr*, int flags);
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ssize_t recvfrom(int sockfd, void*, size_t, int flags, struct sockaddr*, socklen_t*);
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int getsockopt(int sockfd, int level, int option, void*, socklen_t*);
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int setsockopt(int sockfd, int level, int option, const void*, socklen_t);
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int getsockname(int sockfd, struct sockaddr*, socklen_t*);
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int getpeername(int sockfd, struct sockaddr*, socklen_t*);
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int socketpair(int domain, int type, int protocol, int sv[2]);
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int sendfd(int sockfd, int fd);
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int recvfd(int sockfd, int options);
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// These three are non-POSIX, but common:
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#define CMSG_ALIGN(x) (((x) + sizeof(void*) - 1) & ~(sizeof(void*) - 1))
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#define CMSG_SPACE(x) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(x))
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#define CMSG_LEN(x) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (x))
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static inline struct cmsghdr* CMSG_FIRSTHDR(struct msghdr* msg)
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{
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if (msg->msg_controllen < sizeof(struct cmsghdr))
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return 0;
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return (struct cmsghdr*)msg->msg_control;
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}
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static inline struct cmsghdr* CMSG_NXTHDR(struct msghdr* msg, struct cmsghdr* cmsg)
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{
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struct cmsghdr* next = (struct cmsghdr*)((char*)cmsg + CMSG_ALIGN(cmsg->cmsg_len));
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unsigned offset = (char*)next - (char*)msg->msg_control;
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if (msg->msg_controllen < offset + sizeof(struct cmsghdr))
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return NULL;
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return next;
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}
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static inline void* CMSG_DATA(struct cmsghdr* cmsg)
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{
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return (void*)(cmsg + 1);
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}
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__END_DECLS
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