socket api #include <sys/socket.h> int socket(int domain, int type, int protocol); int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen); int bind(int sockfd, const struct sockaddr *addr, socklen_t addrlen); int listen(int sockfd, int backlog); int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen); 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 *addr, socklen_t *addrlen); ssize_t recvmsg(int sockfd, struct msghdr *msg, int flags); 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 *addr, socklen_t addrlen); ssize_t sendmsg(int sockfd, const struct msghdr *msg, int flags); client #include <stdio.

socket api #include <sys/socket.h> int socket(int domain, int type, int protocol); int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen); int bind(int sockfd, const struct sockaddr *addr, socklen_t addrlen); int listen(int sockfd, int backlog); int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen); 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 *addr, socklen_t *addrlen); ssize_t recvmsg(int sockfd, struct msghdr *msg, int flags); 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 *addr, socklen_t addrlen); ssize_t sendmsg(int sockfd, const struct msghdr *msg, int flags); client #include <stdio.

socket basic api #include <sys/socket.h> int socket(int domain, int type, int protocol); int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen); int bind(int sockfd, const struct sockaddr *addr, socklen_t addrlen); int listen(int sockfd, int backlog); int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen); 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 *addr, socklen_t *addrlen); ssize_t recvmsg(int sockfd, struct msghdr *msg, int flags); 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 *addr, socklen_t addrlen); ssize_t sendmsg(int sockfd, const struct msghdr *msg, int flags); 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 setsockopt(int sockfd, int level, int optname, const void *optval, socklen_t optlen); socket address converts https://www.