socket.h

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/*
 * SPDX-FileCopyrightText: 2013-2015 Freie Universität Berlin
 * SPDX-License-Identifier: LGPL-2.1-only
 */
 
#pragma once


 
#ifdef CPU_NATIVE
/* Ignore Linux definitions in native */
#define _BITS_SOCKADDR_H    1
#define __SOCKADDR_COMMON(sa_prefix) \
  sa_family_t sa_prefix##family
 
#define __SOCKADDR_COMMON_SIZE  (sizeof (unsigned short int))
#endif
 
#include <stdalign.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/uio.h>
 
#include "architecture.h"
#include "net/af.h"
#include "sys/bytes.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#ifndef SOCKET_POOL_SIZE
#ifdef MODULE_SOCK_TCP
#define SOCKET_POOL_SIZE        (6)    /* define enough for accepted sockets */
#else
#define SOCKET_POOL_SIZE        (4)
#endif
#endif

#ifndef SOCKET_TCP_QUEUE_SIZE
#ifdef MODULE_SOCK_TCP
#define SOCKET_TCP_QUEUE_SIZE   (2)
#else
#define SOCKET_TCP_QUEUE_SIZE   (0)
#endif
#endif

#define SOCKADDR_MAX_DATA_LEN   (26)

#define SOCK_DGRAM      (1)     
#define SOCK_RAW        (2)     
#define SOCK_SEQPACKET  (3)     
#define SOCK_STREAM     (4)     
 
#define SOL_SOCKET      (-1)    

#define SO_ACCEPTCONN   (0)     
#define SO_BROADCAST    (1)     
#define SO_DEBUG        (2)     
#define SO_DONTROUTE    (3)     
#define SO_ERROR        (4)     
#define SO_KEEPALIVE    (5)     
#define SO_LINGER       (6)     
#define SO_OOBINLINE    (7)     
#define SO_RCVBUF       (8)     
#define SO_RCVLOWAT     (9)     
#define SO_RCVTIMEO     (10)    
#define SO_REUSEADDR    (11)    
#define SO_SNDBUF       (12)    
#define SO_SNDLOWAT     (13)    
#define SO_SNDTIMEO     (14)    
#define SO_TYPE         (15)    
 
typedef unsigned short sa_family_t;   

struct sockaddr {
    alignas(uint32_t) sa_family_t sa_family;
    char sa_data[SOCKADDR_MAX_DATA_LEN];    
};

struct sockaddr_storage {
    alignas(uint32_t) sa_family_t ss_family;
    uint8_t ss_data[SOCKADDR_MAX_DATA_LEN]; 
};

int accept(int socket, struct sockaddr *__restrict address,
           socklen_t *__restrict address_len);

int bind(int socket, const struct sockaddr *address,
         socklen_t address_len);

int connect(int socket, const struct sockaddr *address, socklen_t address_len);

int getpeername(int socket, struct sockaddr *__restrict address,
                socklen_t *__restrict address_len);

int getsockname(int socket, struct sockaddr *__restrict address,
                socklen_t *__restrict address_len);

int listen(int socket, int backlog);

ssize_t recvfrom(int socket, void *__restrict buffer, size_t length, int flags,
                 struct sockaddr *__restrict address,
                 socklen_t *__restrict address_len);

static inline ssize_t recv(int socket, void *buffer, size_t length, int flags)
{
    return recvfrom(socket, buffer, length, flags, NULL, NULL);
}

ssize_t sendto(int socket, const void *buffer, size_t length, int flags,
               const struct sockaddr *address, socklen_t address_len);

static inline ssize_t send(int socket, const void *buffer, size_t length,
                           int flags)
{
    return sendto(socket, buffer, length, flags, NULL, 0);
}

int socket(int domain, int type, int protocol);

static inline int getsockopt(int socket, int level, int option_name, void *option_value,
                             socklen_t *option_len)
{
    (void)socket;
    (void)level;
    (void)option_name;
    (void)option_value;
    (void)option_len;
    return -1;
}
 
int setsockopt(int socket, int level, int option_name, const void *option_value,
               socklen_t option_len);

 
#ifdef __cplusplus
}
#endif