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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <Kernel/API/POSIX/sys/socket.h>
#include <sys/un.h>
__BEGIN_DECLS
int socket(int domain, int type, int protocol);
int bind(int sockfd, const struct sockaddr* addr, socklen_t);
int listen(int sockfd, int backlog);
int accept(int sockfd, struct sockaddr*, socklen_t*);
int accept4(int sockfd, struct sockaddr*, socklen_t*, int);
int connect(int sockfd, const struct sockaddr*, socklen_t);
int shutdown(int sockfd, int how);
ssize_t send(int sockfd, const void*, size_t, int flags);
ssize_t sendmsg(int sockfd, const struct msghdr*, int flags);
ssize_t sendto(int sockfd, const void*, size_t, int flags, const struct sockaddr*, socklen_t);
ssize_t recv(int sockfd, void*, size_t, int flags);
ssize_t recvmsg(int sockfd, struct msghdr*, int flags);
ssize_t recvfrom(int sockfd, void*, size_t, int flags, struct sockaddr*, socklen_t*);
int getsockopt(int sockfd, int level, int option, void*, socklen_t*);
int setsockopt(int sockfd, int level, int option, const void*, socklen_t);
int getsockname(int sockfd, struct sockaddr*, socklen_t*);
int getpeername(int sockfd, struct sockaddr*, socklen_t*);
int socketpair(int domain, int type, int protocol, int sv[2]);
int sendfd(int sockfd, int fd);
int recvfd(int sockfd, int options);
// These three are non-POSIX, but common:
#define CMSG_ALIGN(x) (((x) + sizeof(void*) - 1) & ~(sizeof(void*) - 1))
#define CMSG_SPACE(x) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(x))
#define CMSG_LEN(x) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (x))
static inline struct cmsghdr* CMSG_FIRSTHDR(struct msghdr* msg)
{
if (msg->msg_controllen < sizeof(struct cmsghdr))
return 0;
return (struct cmsghdr*)msg->msg_control;
}
static inline struct cmsghdr* CMSG_NXTHDR(struct msghdr* msg, struct cmsghdr* cmsg)
{
struct cmsghdr* next = (struct cmsghdr*)((char*)cmsg + CMSG_ALIGN(cmsg->cmsg_len));
unsigned offset = (char*)next - (char*)msg->msg_control;
if (msg->msg_controllen < offset + sizeof(struct cmsghdr))
return NULL;
return next;
}
static inline void* CMSG_DATA(struct cmsghdr* cmsg)
{
return (void*)(cmsg + 1);
}
__END_DECLS
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