socket.h

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#pragma once
#include <stdint.h>
#include <sys/time.h>
 
#define SOL_SOCKET -1
 
#define PF_UNSPEC 0
#define PF_INET 2
 
#define AF_UNSPEC PF_UNSPEC
#define AF_INET PF_INET
 
#define SOCK_STREAM 1
#define SOCK_DGRAM 2
 
#define MSG_OOB 0x0001
#define MSG_PEEK 0x0002
#define MSG_DONTROUTE 0x0004
#define MSG_DONTWAIT 0x0020
 
#define SHUT_RD 0
#define SHUT_WR 1
#define SHUT_RDWR 2
 
/*
 * SOL_SOCKET options
 */
#define SO_REUSEADDR 0x0004 // reuse address
#define SO_KEEPALIVE 0x0008 // keep connections alive
#define SO_DONTROUTE 0x0010 // route locally only
#define SO_BROADCAST 0x0020 // broadcast
#define SO_LINGER 0x0080 // linger (no effect?)
#define SO_OOBINLINE 0x0100 // out-of-band data inline (no effect?)
#define SO_TCPSACK 0x0200 // set tcp selective acknowledgment
#define SO_WINSCALE 0x0400 // set tcp window scaling
#define SO_SNDBUF 0x1001 // send buffer size
#define SO_RCVBUF 0x1002 // receive buffer size
#define SO_SNDLOWAT 0x1003 // send low-water mark (no effect?)
#define SO_RCVLOWAT 0x1004 // receive low-water mark
#define SO_ERROR 0x1007 // get socket error
#define SO_TYPE 0x1008 // get socket type
#define SO_HOPCNT 0x1009 // get hop count
#define SO_MAXMSG 0x1010 // same as TCP_MAXSEG
#define SO_RXDATA 0x1011 // get count of bytes in sb_rcv
#define SO_TXDATA 0x1012 // get count of bytes in sb_snd
#define SO_MYADDR 0x1013 // get IP address
#define SO_NBIO 0x1014 // set socket to NON-blocking mode
#define SO_BIO 0x1015 // set socket to blocking mode
#define SO_NONBLOCK 0x1016 // set/get blocking mode via optval param
#define SO_UNKNOWN1019 0x1019 // tcp related
#define SO_UNKNOWN101A 0x101A // tcp related
#define SO_UNKNOWN101B 0x101B // tcp related
#define SO_NOSLOWSTART 0x4000 // disable slowstart
#define SO_RUSRBUF 0x10000 // enable somemopt provided memory for receive buffer
 
typedef uint32_t socklen_t;
typedef uint16_t sa_family_t;
 
struct sockaddr
{
 sa_family_t sa_family;
 char sa_data[];
};
 
struct sockaddr_storage
{
 sa_family_t ss_family;
 char ss_padding[14];
};
 
struct linger
{
 int l_onoff;
 int l_linger;
};
 
#ifdef __cplusplus
extern "C" {
#endif
 
int
accept(int sockfd,
 struct sockaddr *addr,
 socklen_t *addrlen);
 
int
bind(int sockfd,
 const struct sockaddr *addr,
 socklen_t addrlen);
 
int
connect(int sockfd,
 const struct sockaddr *addr,
 socklen_t addrlen);
 
int
getpeername(int sockfd,
 struct sockaddr *addr,
 socklen_t *addrlen);
 
int
getsockname(int sockfd,
 struct sockaddr *addr,
 socklen_t *addrlen);
 
int
getsockopt(int sockfd,
 int level,
 int optname,
 void *optval,
 socklen_t *optlen);
 
int
listen(int sockfd,
 int backlog);
 
ssize_t
recv(int sockfd,
 void *buf,
 size_t len,
 int flags);
 
ssize_t
recvfrom(int sockfd,
 void *buf,
 size_t len,
 int flags,
 struct sockaddr *src_addr,
 socklen_t *addrlen);
 
ssize_t
send(int sockfd,
 const void *buf,
 size_t len,
 int flags);
 
ssize_t
sendto(int sockfd,
 const void *buf,
 size_t len,
 int flags,
 const struct sockaddr *dest_addr,
 socklen_t addrlen);
 
int
setsockopt(int sockfd,
 int level,
 int optname,
 const void *optval,
 socklen_t optlen);
 
int
shutdown(int sockfd,
 int how);
 
int
socket(int domain,
 int type,
 int protocol);
 
int
sockatmark(int sockfd);
 
#ifdef __cplusplus
}
#endif